The present disclosure relates generally to process plants and to process control systems, and more particularly, to devices that support distributed big data in process plants and process control systems.
Distributed process control systems, like those used in chemical, petroleum or other process plants, typically include one or more process controllers communicatively coupled to one or more field devices via analog, digital or combined analog/digital buses, or via a wireless communication link or network. The field devices, which may be, for example, valves, valve positioners, switches and transmitters (e.g., temperature, pressure, level and flow rate sensors), are located within the process environment and generally perform physical or process control functions such as opening or closing valves, measuring process parameters, etc. to control one or more process executing within the process plant or system. Smart field devices, such as the field devices conforming to the well-known Fieldbus protocol may also perform control calculations, alarming functions, and other control functions commonly implemented within the controller. The process controllers, which are also typically located within the plant environment, receive signals indicative of process measurements made by the field devices and/or other information pertaining to the field devices and execute a controller application that runs, for example, different control modules which make process control decisions, generate control signals based on the received information and coordinate with the control modules or blocks being performed in the field devices, such as HART®, WirelessHART®, and FOUNDATION® Fieldbus field devices. The control modules in the controller send the control signals over the communication lines or links to the field devices to thereby control the operation of at least a portion of the process plant or system.
Information from the field devices and the controller is usually made available over a data highway to one or more other hardware devices, such as operator workstations, personal computers or computing devices, data historians, report generators, centralized databases, or other centralized administrative computing devices that are typically placed in control rooms or other locations away from the harsher plant environment. Each of these hardware devices typically is centralized across the process plant or across a portion of the process plant. These hardware devices run applications that may, for example, enable an operator to perform functions with respect to controlling a process and/or operating the process plant, such as changing settings of the process control routine, modifying the operation of the control modules within the controllers or the field devices, viewing the current state of the process, viewing alarms generated by field devices and controllers, simulating the operation of the process for the purpose of training personnel or testing the process control software, keeping and updating a configuration database, etc. The data highway utilized by the hardware devices, controllers and field devices may include a wired communication path, a wireless communication path, or a combination of wired and wireless communication paths.
As an example, the DeltaV™ control system, sold by Emerson Process Management, includes multiple applications stored within and executed by different devices located at diverse places within a process plant. A configuration application, which resides in one or more workstations or computing devices, enables users to create or change process control modules and download these process control modules via a data highway to dedicated distributed controllers. Typically, these control modules are made up of communicatively interconnected function blocks, which are objects in an object oriented programming protocol that perform functions within the control scheme based on inputs thereto and that provide outputs to other function blocks within the control scheme. The configuration application may also allow a configuration designer to create or change operator interfaces which are used by a viewing application to display data to an operator and to enable the operator to change settings, such as setpoints, within the process control routines. Each dedicated controller and, in some cases, one or more field devices, stores and executes a respective controller application that runs the control modules assigned and downloaded thereto to implement actual process control functionality. The viewing applications, which may be executed on one or more operator workstations (or on one or more remote computing devices in communicative connection with the operator workstations and the data highway), receive data from the controller application via the data highway and display this data to process control system designers, operators, or users using the user interfaces, and may provide any of a number of different views, such as an operator's view, an engineer's view, a technician's view, etc. A data historian application is typically stored in and executed by a data historian device that collects and stores some or all of the data provided across the data highway while a configuration database application may run in a still further computer attached to the data highway to store the current process control routine configuration and data associated therewith. Alternatively, the configuration database may be located in the same workstation as the configuration application.
The architecture of currently known process control plants and process control systems is strongly influenced by limited controller and device memory, communications bandwidth and controller and device processor capability. For example, in currently known process control system architectures, the use of dynamic and static non-volatile memory in the controller is usually minimized or, at the least, managed carefully. As a result, during system configuration (e.g., a priori), a user typically must choose which data in the controller is to be archived or saved, the frequency at which it will be saved, and whether or not compression is used, and the controller is accordingly configured with this limited set of data rules. Consequently, data which could be useful in troubleshooting and process analysis is often not archived, and if it is collected, the useful information may have been lost due to data compression.
Additionally, to minimize controller memory usage in currently known process control systems, selected data that is to be archived or saved (as indicated by the configuration of the controller) is reported to the workstation or computing device for storage at an appropriate data historian or data silo. The current techniques used to report the data poorly utilizes communication resources and induces excessive controller loading. Additionally, due to the time delays in communication and sampling at the historian or silo, the data collection and time stamping is often out of sync with the actual process.
Similarly, in batch process control systems, to minimize controller memory usage, batch recipes and snapshots of controller configuration typically remain stored at a centralized administrative computing device or location (e.g., at a data silo or historian), and are only transferred to a controller when needed. Such a strategy introduces significant burst loads in the controller and in communications between the workstation or centralized administrative computing device and the controller.
Furthermore, the capability and performance limitations of relational databases of currently known process control systems, combined with the previous high cost of disk storage, play a large part in structuring data into independent entities or silos to meet the objectives of specific applications. For example, within the DeltaV™ system, the archiving of process models, continuous historical data, and batch and event data are saved in three different application databases or silos of data. Each silo has a different interface to access the data stored therein.
Structuring data in this manner creates a barrier in the way that historized data is accessed and used. For example, the root cause of variations in product quality may be associated with data in more than of these data silos. However, because of the different file structures of the silos, it is not possible to provide tools that allow this data to be quickly and easily accessed for analysis. Further, audit or synchronizing functions must be performed to ensure that data across different silos is consistent.
The limitations of currently known process plants and process control system discussed above and other limitations may undesirably manifest themselves in the operation and optimization of process plants or process control systems, for instance, during plant operations, trouble shooting, and/or predictive modeling. For example, such limitations force cumbersome and lengthy work flows that must be performed in order to obtain data for troubleshooting and generating updated models. Additionally, the obtained data may be inaccurate due to data compression, insufficient bandwidth, or shifted time stamps.
“Big data” generally refers to a collection of one or more data sets that are so large or complex that traditional database management tools and/or data processing applications (e.g., relational databases and desktop statistic packages) are not able to manage the data sets within a tolerable amount of time. Typically, applications that use big data are transactional and end-user directed or focused. For example, web search engines, social media applications, marketing applications and retail applications may use and manipulate big data. Big data may be supported by a distributed database which allows the parallel processing capability of modern multi-process, multi-core servers to be fully utilized.
An embodiment of a process control device for supporting distributed big data in a process plant includes a processor and one or more tangible, non-transitory, computer-readable storage media having stored thereon a set of computer-executable instructions. When the computer-executable instructions are executed by the processor, the process control device operates to control, in real-time, at least a portion of a process executed by the process plant by generating process data used to control the at least the portion of the process, and/or by operating on received process data to control the at least the portion of the process. As such, the generated process data and the received process data are process data that is generated from real-time control of the process. The process control device further includes an indication of its type, which may be, for example, a field device, a controller, or an input/output (I/O) device disposed between and connected to the field device and the controller. Additionally, the process control device includes an embedded big data apparatus that is configured to store the generated process data and the received process data, perform a learning analysis on at least a part of the stored process data, create learned knowledge based on a result of the learning analysis, and cause the learned knowledge to be transmitted to another process control device in the process plant.
An embodiment of a method of supporting distributed big data using a device communicatively coupled to a communications network of a process plant and operating to control a process in real-time in the process plant includes collecting data at the device. The collected data includes at least one of: (i) data that is generated by the device, (ii) data that is created by the device, or (iii) data that is received at the device, and the collected data generally is data resulting from the control of the process in real-time. The device is, for example, a field device, a controller, or an input/output (I/O) device. The method further includes storing the collected data in an embedded big data apparatus of the device, and performing, by the embedded big data apparatus of the device, a learning analysis on at least a portion of the stored data. Additionally, the method includes generating learned knowledge indicative of a result of the learning analysis, and modifying, based on the learned knowledge, an operation of the device to control the process in real-time.
An embodiment of a system for supporting distributed big data in a process plant includes a communications network having a plurality of nodes, at least one of which is a process control device operating, in real-time, to control a process executing in the process plant. Each of the plurality of nodes is configured to collect data generated in real-time resulting from control of the process executing in the process plant. Each of the plurality of nodes is also configured to locally store the collected data at a respective embedded big data apparatus included in the each of the plurality of nodes, and to perform, by the respective embedded big data apparatus included in the node, a respective learning analysis on at least a portion of the locally stored data. A node may be further configured to cause learned knowledge (generated as a result of its own performance of a learning analysis) to be transmitted to another node for use in the other node's learning analyses.
In process control plants or systems, data is often generated around various process equipment or devices that operate to control a process within the plant or system. In many ways, a first or lowest order of detail for a process in a process control plant or system is related to the input, operation, and output for each piece of process equipment or a collection of process equipment in a control loop of the process, e.g., while the process equipment is operating to control the process. As a result, one possible view or perspective of the process includes big data aggregation around each piece of process equipment or around each control loop. The systems, methods, apparatuses and techniques disclosed herein utilize this localized and distributed perspective of the process to gain efficiencies in operating and optimizing the process, such as by using meaningful, localized and distributed data analytics. For example, instead of analyzing all of the process plant's big data at a single or centralized data warehouse, at least some process control algorithms (including prediction, modeling, and/or diagnostics algorithms) are pushed down to or embedded in individual process equipment to permit real-time operation on localized data. In doing so, process equipment with embedded learning may enable the discovery of important time and causal relationships between various process variables of the process in a fast and efficient manner, and in some cases, in real-time while the process is being controlled.
Any type of data related to the process control system 10 may be collected, analyzed and stored at each of the distributed big data devices 102 as big data. For example, real-time process data such as continuous, batch, measurement and event data that is generated while a process is being controlled in the process plant 10 (and, in some cases, is indicative of an effect of a real-time execution of the process) may be collected, analyzed and stored. Process definition, arrangement or set-up data such as configuration data and/or batch recipe data may be collected, analyzed and stored. Data corresponding to the configuration, execution and results of process diagnostics may be collected, analyzed and stored. Other types of process data may also be collected, analyzed and stored.
Further, data highway traffic and network management data related to the backbone 105 and of various other communications networks of the process plant 10 may be locally collected, analyzed and stored at at least some of the distributed big data devices 102. User-related data such as data related to user traffic, login attempts, queries and instructions may be collected, analyzed and stored. Text data (e.g., logs, operating procedures, manuals, etc.), spatial data (e.g., location-based data) and multi-media data (e.g., closed circuit TV, video clips, etc.) may be collected, analyzed and stored.
In some scenarios, data that is related to the process plant 10 (e.g., to physical equipment included in the process plant 10 such as machines and devices) but that may not be generated by applications that directly configure, control, or diagnose a process may be locally collected, analyzed and stored at at least some of the distributed big data devices 102. For example, vibration data and steam trap data may be collected, analyzed and stored. Other examples of such plant data include data indicative of a value of a parameter corresponding to plant safety (e.g., corrosion data, gas detection data, etc.), or data indicative of an event corresponding to plant safety. Data corresponding to the health of machines, plant equipment and/or devices may be collected, analyzed and stored (e.g., data that is created by the devices and/or machines that is used for diagnostic or prognostic purposes). Data corresponding to the configuration, execution and results of equipment, machine, and/or device diagnostics may be collected, analyzed and stored. Further, created or calculated data that is useful for diagnostics and prognostics may be collected, analyzed and stored.
In some embodiments, data generated by or transmitted to entities external to the process plant 10 may be locally collected, analyzed and stored at at least some of the distributed big data devices 102, such as data related to costs of raw materials, expected arrival times of parts or equipment, and other external data. In an embodiment, all data that is generated by, created by, received at, or otherwise observed by all nodes or devices 102 that are communicatively connected to the network backbone 105 is respectively and locally collected, analyzed and stored at at least some of the nodes or devices 102 as big data.
In some embodiments, various types of data may be automatically collected and stored locally at each of the distributed big data devices 102 as big data. For example, dynamic measurement and control data is automatically collected and stored at the distributed big data devices 102. Examples of dynamic measurement and control data may include data specifying changes in a process operation, data specifying changes in operating parameters such as setpoints, records of process and hardware alarms and events such as downloads or communication failures, etc. In any of these embodiments, all types of measurement and control data are automatically captured in the devices 102 as big data. In addition, static data such as controller configurations, batch recipes, alarms and events may be automatically communicated by default when a change is detected or when a controller or other entity is initially added to the big data network 100.
Moreover, in some scenarios, at least some static metadata that describes or identifies dynamic control and measurement data is captured in the distributed big data devices 102 when a change in the metadata is detected. For example, if a change is made in the controller configuration that impacts the measurement and control data in modules or units that must be sent by the controller, then an update of the associated metadata is automatically captured in the controller. In some situations, parameters associated with the special modules used for buffering data from external systems or sources (e.g., weather forecasts, public events, company decisions, etc.) are automatically captured by default in the devices 102. Additionally or alternatively, surveillance data and/or other types of monitoring data may be automatically captured in the devices 102.
Further, in some embodiments, added parameters created by end users are automatically captured in the distributed big data devices 102. For example, an end user may create a special calculation in a module or may add a parameter to a unit that needs to be collected, or the end user may want to collect a standard controller diagnostic parameter that is not communicated by default. Parameters that the end user optionally configures may be communicated in the same manner as the default parameters.
The plurality of distributed big data nodes or devices 102 of the process control big data network 100 may include several different groups of nodes or devices 110-114 that support distributed big data in process control systems or plants. A first group of nodes or devices 110, referred to interchangeably herein as “distributed big data provider nodes 110,” “distributed big data provider devices 110,” provider nodes 110,” or “provider devices 110,” includes one or more nodes or devices that generate, route, and/or receive process control data to enable processes to be controlled in real-time in the process plant environment 10. Examples of provider nodes or devices 110 include devices whose primary function is directed to generating and/or operating on process control data to control a process, e.g., wired and wireless field devices, controllers, and input/output (I/O devices). Other examples of provider devices 110 include devices whose primary function is to provide access to or routes through one or more communications networks of the process control system (of which the process control big network 100 is one), e.g., access points, routers, interfaces to wired control busses, gateways to wireless communications networks, gateways to external networks or systems, and other such routing and networking devices. Still other examples of provider devices 110 include historian devices whose primary function is to store process data (in some cases, temporarily) and other related data that is accumulated throughout the process control system 10.
At least one of the provider nodes or devices 110 is communicatively connected to the process control big data network backbone 105 in a direct manner. In some process plants, at least one of the provider devices 110 is communicatively connected to the backbone 105 in an indirect manner. For example, a wireless field device is communicatively connected to the backbone 105 via a router, and access point, and a wireless gateway. Further, at least some of the provider nodes or devices 110 may be communicatively connected to the backbone 105 in a hierarchical manner. For example, one or more field devices are communicatively connected to one or more I/O devices, which are communicatively connected to one or more controllers, which in turn are communicatively connected to the backbone 105. Still further, at least one of the provider nodes or devices 110 may be communicatively connected to another provider node or device 110 in a peer-to-peer manner. For example, two controllers are communicatively connected to each other, while one or both of the controllers are also communicatively connected to the backbone 105. Typically, provider nodes or devices 110 do not have an integral user interface, although some of the provider devices 110 may have the capability to be in communicative connection with a user computing device or user interface, e.g., by communicating over a wired or wireless communication link, or by plugging a user interface device into a port of the provider device 110.
A second group of nodes or devices 112 that support distributed big data in process control systems or plants is referred to interchangeably herein as “distributed big data user interface nodes 112,” “distributed big data user interface devices 112,” “user interface nodes 112” or “user interface devices 112.” The second group of devices 112 includes one or more nodes or devices that each have an integral user interface via which a user or operator may interact with the process control system or process plant 10 to perform activities related to the process plant 10 (e.g., configure, view, monitor, test, diagnose, order, plan, schedule, annotate, and/or other activities). Examples of these user interface nodes or devices 112 include mobile or stationary computing devices, workstations, handheld devices, tablets, surface computing devices, and any other computing device having a processor, a memory, and an integral user interface. Integrated user interfaces may include a screen, a keyboard, keypad, mouse, buttons, touch screen, touch pad, biometric interface, speakers and microphones, cameras, and/or any other user interface technology. Each user interface device 112 may include one or more integrated user interfaces. User interface nodes or devices 112 may include a direct connection to the process control big data network backbone 105, or may include an indirect connection to the backbone 105, e.g., via an access point or a gateway. User interface devices 112 may communicatively connect to the process control system big data network backbone 105 in a wired manner and/or in a wireless manner. In some embodiments, a user interface device 112 may connect to the network backbone 105 in an ad-hoc manner.
Of course, the plurality of distributed big data nodes or devices 102 in process control plants and systems is not limited to only provider nodes 110 and user interface nodes 112. One or more other types of distributed big data nodes or devices 114 may also be included in the plurality of nodes or devices 102. For example, a node 114 of a system that is external to the process plant 10 (e.g., a lab system or a materials handling system) may be communicatively connected to the network backbone 105 of the system 100. A node or device 114 may be communicatively connected to the backbone 105 via a direct or an indirect connection, and a node or device 114 may be communicatively connected to the backbone 105 via a wired or a wireless connection. In some embodiments, the group of other nodes or devices 114 may be omitted from the process control system big data network 100.
To support distributed big data, any number of the nodes or devices 110-114 each includes a respective embedded big data apparatus or appliance 116. The embedded big data apparatus or appliance 116 includes, for example, an embedded big data storage 120 for storing or historizing data, one or more processors (not shown), one or more embedded big data receivers 122, one or more embedded big data analyzers 124, and one or more embedded big data request servicers 126. In an embodiment, the embedded big data receivers 122, the embedded big data analyzers 124, and the embedded big data request servicers 126 comprise respective computer-executable instructions that are stored on one or more tangible, non-transitory computer readable storage media (e.g., the embedded big data storage 120, a memory device, or another data storage device), and that are executable by the one or more processors of the embedded big data appliance 116. In some of the nodes or devices 110-114, in addition to executing big data instructions or functions, the one or more processors of the embedded big data appliance 116 additionally execute non-big data instructions or functions that are performed by devices of a process control system, such as control algorithms, data routing, measurements, user interface management, and the like. Each of these components 120, 122, 124, 126 of the embedded big data appliance 116 is described in more detail below. For ease of discussion, the term “particular device 110-114” generally refers to each of one or more of the devices 110-114 that support distributed big data in process plants and process control systems.
The embedded big data storage 120 of a particular device 110-114 includes one or more tangible, non-transitory memory storages that utilize high density memory storage technology, for example, solid state drive memory, semiconductor memory, optical memory, molecular memory, biological memory, or any other suitable high density memory technology. To the other nodes or devices 110-114 of the network 100, the embedded big data storage 120 may have the appearance of a single or unitary logical data storage area or entity, which may or may not be addressed in the network 100 as a different entity from the particular device 110-114. Typically, the embedded big data storage 120 is integrated in the particular device 110-114. In an embodiment, the embedded big data storage 120 includes an integral firewall.
The structure of the embedded big data storage 120 included in the particular device 110-114 supports the storage of any and all process control system and plant related data collected by the particular device 110-114, in an embodiment. Each entry, data point, or observation stored in the embedded big data storage 120 includes, for example, an indication of the identity of the data (e.g., device, tag, location, etc.), a content of the data (e.g., measurement, value, etc.), and a timestamp indicating a time at which the data was collected, generated, created, received, or observed. As such, these entries, data points, or observations are referred to herein as “time-series data.” The data is stored in the embedded big data storage 120 of the particular device 110-114 using a common format including a schema that supports scalable storage, for example, and which may or may not be the same schema as utilized by other particular devices 110-114.
In an embodiment, the schema includes storing multiple observations in each row, and using a row-key with a custom hash to filter the data in the row. The hash is based on the timestamp and a tag, in an embodiment. In an example, the hash is a rounded value of the timestamp, and the tag corresponds to an event or an entity of or related to the process control system. In an embodiment, metadata corresponding to each row or to a group of rows is also stored in the embedded big data storage 120 of the particular device 110-114, either integrally with the time-series data or separately from the time-series data. For example, the metadata may be stored in a schema-less manner separately from the time-series data.
In addition to the embedded big data storage 120, the embedded big data appliance 116 of the particular device 110-114 includes one or more embedded big data receivers 122, each of which is configured to receive data collected by the particular device 110-114. In an embodiment, multiple embedded big data receivers 122 (and/or multiple instances of at least one embedded big data receiver 122) may operate in parallel to receive the data locally collected by the particular device 110-114.
Examples of data that may be locally collected and stored by the provider nodes or devices 110, e.g., as distributed big data, may include measurement data, configuration data, batch data, event data, and/or continuous data. For instance, data corresponding to configurations, batch recipes, setpoints, outputs, rates, control actions, diagnostics, health of the device or of other devices, alarms, events and/or changes, and diagnostic data thereto may be collected. Other examples of data may include process models, statistics, status data, and network and plant management data.
Examples of data that may be locally collected and stored by the user interface nodes or devices 112, e.g., as distributed big data, may include, for example, user logins, user queries, data captured by a user (e.g., by camera, audio, or video recording device), user commands, creation, modification or deletion of files, a physical or spatial location of a user interface node or device, results of a diagnostic or test performed by the user interface device 112, and other actions or activities initiated by or related to a user interacting with a user interface node 112.
Collected data may be dynamic or static data. Collected data may include, for example, database data, configuration data, batch data, streaming data, and/or transactional data. Generally speaking, any data that a particular device 110-114 generates, receives, or otherwise observes may be collected with a corresponding time stamp or indication of a time of its generation, reception or observation by the particular device 110-114.
In an embodiment, each of the devices 110, 112 (and, optionally, at least one of the other devices 114) is configured to automatically collect real-time data, without requiring lossy data compression, data sub-sampling, or configuring the node for data collection purposes. Thus, the devices 110, 112 (and, optionally, at least one of the other devices 114) of the process control big data system 100 may automatically collect all data (e.g., measurement and control data as well as various other types of data) that is generated by, created by, received at, or obtained by the device at a rate at which the data is generated, created, received or obtained.
The embedded big data appliance 116 of the particular device 110-114 may include one or more embedded big data analyzers 124, each of which is configured to carry out or perform learning analysis on data stored in the embedded big data storage 120, typically without using any user input to initiate and/or perform the learning analysis. Generally, the learning analysis may be supervised (e.g., determining relationships or patterns from labeled data), semi-supervised (e.g., determining relationships or patterns from unlabeled data and a subset of labeled data), unsupervised (e.g., determining relationships or patterns from unlabeled data), or any combination thereof. In an embodiment, multiple embedded big data analyzers 124 (and/or multiple instances of at least one embedded big data analyzer 124) may operate in parallel to analyze the data stored in the embedded big data storage 120 of the particular device 110-114.
In an embodiment, the embedded big data analyzers 124 may perform large scale data analysis on the stored data (e.g., data mining, data discovery, etc.) to discover, detect, or learn new information and knowledge. For example, data mining generally involves the process of examining large quantities of data to extract new or previously unknown interesting data or patterns such as unusual records or multiple groups of data records. The embedded big data analyzers 124 may also perform large scale data analysis on the stored data (e.g., machine learning analysis, data modeling, pattern recognition, predictive analysis, correlation analysis, etc.) to predict, calculate, or identify implicit relationships or inferences within the stored data. For example, the embedded data analyzers 124 may utilize any number of data learning algorithms and classification techniques such as partial least square (PLS) regression, random forest, and/or principle component analysis (PCA). From the large scale data analysis (e.g., based on outputs of the large scale data analysis), the embedded big data analyzers 124 of the particular device 110-114 may create or generate ensuing learned knowledge, which may be stored in or added to the embedded big data storage 120 of the particular device 110-114.
Furthermore, the embedded big data appliance 116 of the particular device 110-114 may include one or more embedded big data request servicers 126, each of which is configured to access localized data stored in the embedded big data storage 120, e.g., per the request of a requesting entity or application. In an embodiment, multiple embedded big data request servicers 126 (and/or multiple instances of at least one embedded big data request servicer 126) of the particular device 110-114 may operate in parallel on multiple requests from multiple requesting entities or applications. In an embodiment, a single embedded big data request servicer 126 of the particular device 110-114 may service multiple requests, such as multiple requests from a single entity or application, or multiple requests from different instances of an application.
Continuing with
The big data network backbone 105 may support one or more suitable routing protocols, e.g., protocols included in the Internet Protocol (IP) suite (e.g., UPD (User Datagram Protocol), TCP (Transmission Control Protocol), Ethernet, etc.), or other suitable routing protocols. Typically, each device or node 102 included in the process data big data network 100 supports at least an application layer (and, for some devices, additional layers) of the routing protocol(s) supported by the backbone 105. In an embodiment, each device or node 102 is uniquely identified within the process control system big data network 100, e.g., by a unique network address. In an embodiment, at least a portion of the process control system big data network 100 is an ad-hoc network. As such, at least some of the devices 102 may connect to the network backbone 105 (or to another node of the network 100) in an ad-hoc manner.
Referring again to
In an embodiment, the centralized process control system big data appliance 108 is similar to that described in aforementioned U.S. application Ser. No. 13/784,041. For example, the centralized process control system big data storage area 130 may comprise multiple physical data drives or storage entities, such as RAID (Redundant Array of Independent Disks) storage, cloud storage, or any other suitable data storage technology that is suitable for data bank or data center storage. Further, each of the plurality of centralized process control system big data receivers 132 may be configured to receive data packets from the backbone 105, process the data packets to retrieve the substantive data and/or learned knowledge carried therein, and store the substantive data and/or learned knowledge in the centralized process control system big data storage area 130. In an embodiment, the schema used for storing data and/or learned knowledge at one or more of the t embedded big data storages 120 in the network 100 is also utilized for storing data and/or learned knowledge in the centralized process control system big data storage area 130. Accordingly, in this embodiment, the schema is maintained when data and/or learned knowledge are transmitted from the one or more embedded big data storages 120 across the backbone 105 to the centralized process control system big data storage area 130. In an embodiment, at least some of the distributed big data devices 102 utilize a streaming protocol such as the Stream Control Transmission Protocol (SCTP) to stream stored data and/or learned knowledge from the devices 102 to the centralized process control system big data appliance 108 via the network backbone 105.
With regard to the centralized big data nodes or devices 128, the centralized big data nodes or devices 128 may be similar to those devices described in aforementioned U.S. Application No. 61/783,112. For example, the centralized big data nodes or devices 128 each include a multi-core processor and a cache memory that is configured to temporarily store or cache data that is generated by, created by, received at, or otherwise observed by its respective device 128. The multi-core processor of the centralized big data device 128 is configured to cause the cached data to be transmitted for storage at the centralized process control system big data appliance 108.
Furthermore, in some embodiments, the example process control system big data process control network 100 may include legacy or prior art process control devices (not shown) that do not include any big data support. In these embodiments, a gateway node in the plant 10 may convert or translate data messages between a protocol utilized by big data backbone 105 and a different protocol utilized by a communication network to which the legacy or prior art devices are communicatively connected.
A detailed block diagram illustrating example distributed big data provider devices 110 in a process plant or process control environment is shown in
As previously discussed, the distributed big data provider devices 110 may include devices whose main function is to locally automatically generate and/or receive process control data that is used to perform functions to control a process in real-time in the process plant environment 10, and locally store or historize said data. For instance, process controllers, field devices and I/O devices are examples of possible distributed big data providers 110. In a process plant environment 10, process controllers receive signals indicative of process measurements made by field devices, process this information to implement a control routine, and generate control signals that are sent over wired or wireless communication links to other field devices to control the operation of a process in the plant 10. Typically, at least one field device performs a physical function (e.g., opening or closing a valve, increase or decrease a temperature, etc.) to control the operation of a process, and some types of field devices may communicate with controllers using I/O devices. Process controllers, field devices, and I/O devices may be wired or wireless, and any number and combination of wired and wireless process controllers, field devices and I/O devices may be distributed big data nodes 110 of the process control big data network 100, each of which locally collects, analyzes and stores big data.
For example,
The controller 11, which may be, by way of example, the DeltaV™ controller sold by Emerson Process Management, may operate to implement a batch process or a continuous process using at least some of the field devices 15-22 and 40-46. In an embodiment, in addition to being communicatively connected to the process control big data network backbone 105, the controller 11 may also be communicatively connected to at least some of the field devices 15-22 and 40-46 using any desired hardware and software associated with, for example, standard 4-20 mA devices, I/O cards 26, 28, and/or any smart communication protocol such as the FOUNDATION® Fieldbus protocol, the HART® protocol, the WirelessHART® protocol, etc. In an embodiment, the controller 11 may be communicatively connected with at least some of the field devices 15-22 and 40-46 using the big data network backbone 105. In
The process controller device 11 of
In some embodiments, the controller 11 implements a control strategy using what are commonly referred to as function blocks, wherein each function block is an object or other part (e.g., a subroutine) of an overall control routine and operates in conjunction with other function blocks (via communications called links) to implement process control loops within the process control system 10. Control based function blocks typically perform one of an input function, such as that associated with a transmitter, a sensor or other process parameter measurement device, a control function, such as that associated with a control routine that performs PID, fuzzy logic, etc. control, or an output function which controls the operation of some device, such as a valve, to perform some physical function within the process control system 10. Of course, hybrid and other types of function blocks exist. Function blocks may be stored in and executed by the controller 11, which is typically the case when these function blocks are used for, or are associated with standard 4-20 ma devices and some types of smart field devices such as HART devices, or may be stored in and implemented by the field devices themselves, which can be the case with Fieldbus devices. The controller 11 may include one or more control routines 38 that may implement one or more control loops. Each control loop is typically referred to as a control module, and may be performed by executing one or more of the function blocks.
Other examples of provider devices 110 that support distributed big data in the process plant or system 10 are the wired field devices 15, and 18-20 and the I/O card 26 shown in
The wireless field devices 40-46 shown in
In an embodiment, the wireless gateway 35 is a distributed big data provider device 110 that is included in the process control plant or system 10. The wireless gateway 35 may provide access to various wireless devices 40-58 of a wireless communications network 70. In particular, the wireless gateway 35 provides communicative coupling between the wireless devices 40-58, the wired devices 11-28, and/or other nodes or devices of the process control big data network 100 (including the controller 11 of
The wireless gateway 35 provides communicative coupling, in some cases, by the routing, buffering, and timing services to lower layers of the wired and wireless protocol stacks (e.g., address conversion, routing, packet segmentation, prioritization, etc.) while tunneling a shared layer or layers of the wired and wireless protocol stacks. In other cases, the wireless gateway 35 may translate commands between wired and wireless protocols that do not share any protocol layers. In addition to protocol and command conversion, the wireless gateway 35 may provide synchronized clocking used by time slots and superframes (sets of communication time slots spaced equally in time) of a scheduling scheme associated with the wireless protocol implemented in the wireless network 70. Furthermore, the wireless gateway 35 may provide network management and administrative functions for the wireless network 70, such as resource management, performance adjustments, network fault mitigation, monitoring traffic, security, and the like.
Similar to the wired field devices 15-22, the wireless field devices 40-46 of the wireless network 70 may perform physical control functions within the process plant 10, e.g., opening or closing valves or take measurements of process parameters. The wireless field devices 40-46, however, are configured to communicate using the wireless protocol of the network 70. As such, the wireless field devices 40-46, the wireless gateway 35, and other wireless nodes 52-58 of the wireless network 70 are producers and consumers of wireless communication packets.
In some scenarios, the wireless network 70 may include non-wireless devices. For example, a field device 48 of
Accordingly,
The distributed big data provider devices 110 of the process control big data network 100, though, may also include other devices that communicate using other wireless protocols. In
In
Also in
The distributed big data provider devices or nodes 110 in the process plant or system 10 may include one or more external system gateway nodes 78 to communicatively connect the process control big data network 100 with the network of an external public or private system, such as a laboratory system (e.g., Laboratory Information Management System or LIMS), an operator rounds database, a materials handling system, a maintenance management system, a product inventory control system, a production scheduling system, a weather data system, a shipping and handling system, a packaging system, the Internet, another provider's process control system, or other external systems.
Although
Referring generally to the distributed big data devices illustrated in
The distributed big data device 300 may be a node of a network that supports distributed big data in a process control system, such as the process control system big data network 100 of
In an embodiment, the device 300 operates in the process plant or process control system 10 to control a process in real-time, e.g., as part of a control loop. For example, the device 300 connects, using a process control interface 305, to a process control communications network 303 via which the device 300 may transmit signals to and/or receive signals from other devices to control a process in real-time in the process control system 10. The process control communications network 303 may be a wired or wireless communications network (e.g., the wireless network 70, a Fieldbus network, a wired HART network, etc.), or the process control communications network 303 may include both a wired and a wireless communications network. Additionally or alternatively, the device 300 may transmit and/or receive signals to control the process in real-time using the process control big data network backbone 105, e.g., via the network interface 302. In an embodiment, the network interface 302 and the process control interface 305 may be the same interface (e.g., an integral interface).
The process control interface 305 is configured to transmit and/or receive process control data corresponding to a process of the process plant 10 or to a process being controlled in the process plant 10. Process control data may include measurement data (e.g., outputs, rates, etc.), configuration data (e.g., setpoints, configuration changes, etc.), batch data (e.g., batch recipes, batch conditions, etc.), event data (e.g., alarms, process control events, etc.), continuous data (e.g., parameter values, video feeds, etc.), calculated data (e.g., internal states, intermediate calculations, etc.), diagnostic data, data indicative of the health of the device 300 or of another device, and/or other kinds of process control data. Further, the process control data may include data created by the device 300 itself, e.g., as a result of performing a control function.
In an embodiment, the distributed big data device 300 is a process controller and the process control interface 305 is used to obtain a configuration of the controller (e.g., from a workstation), and/or to obtain data that is transmitted to or received from a field device connected to the controller to control a process in real-time. For example, the controller may be connected to a wireless HART valve positioner, the valve positioner may generate process control data corresponding to a state of the valve and provide the generated data to the controller via the process control interface 305. The received data may be stored in the controller and/or may be used by the controller to perform a control function or at least a portion of a control loop.
In another embodiment, the distributed big data device 300 is an I/O device that provides a connection between a controller and a field device. In this embodiment, the process control interface 305 includes a field device interface to exchange process control data with the field device, and a controller interface to exchange process control data with the controller. The field device interface is connected to the controller interface so that data may be transmitted to and received from the field device to the controller via the I/O device.
In yet another embodiment, the distributed big data device 300 is a field device performing a physical function to control a process. For example, the device 300 may be a flow meter that measures and obtains process control data corresponding to a current measured flow via the process control interface 305, and that sends a signal corresponding to the measured flow to a controller to control a process via the interface 305.
Although the above discussion refers to the distributed big data device 300 as being a process control device operating in a control loop, the techniques and descriptions provided above apply equally to embodiments in which the device 300 is another type of device associated with the process control plant or system 10. In an example, the distributed big data device 300 is a network management device such as an access point 72. The network management device observes data (e.g., bandwidth, traffic, types of data, network configuration, login identities and attempts, etc.) via the interface 305, and relays the generated data to the process control system big data network backbone 105 via the network interface 302. In yet another example, the device 300 is a distributed big data user interface device 112 (e.g., a mobile device, a tablet, etc.) that is configured to allow a user or operator to interact with the process control system or process plant 10. For instance, the interface 305 in the device 300 may be an interface to a WiFi or NFC communications link that allows the user to perform activities in the process plant 10 such as configuration, viewing, scheduling, monitoring, etc. User logins, commands, and responses may be collected via the interface 305 and transmitted to the process control system big data network backbone 105 via the network interface 302.
In addition to the interfaces 302, 305, the distributed big data device 300 includes a processor 308 configured to execute computer-readable instructions stored in a memory 310, and an embedded big data appliance 312. The processor 308 includes processing elements such as central processing units (CPU). In an embodiment, the processor 308 has a single processing element. In an embodiment, the processor 308 has multiple processing elements that are able to perform multiple tasks or functions concurrently or in parallel by allocating multiple calculations across the multiple processing elements. In any event, the processor 308 may cause data to be collected or captured, e.g., data that traverses the interface 305. For example, the processor 308 may collect data that is directly generated by the device 300, that is created by the device 300, or that is directly received at the device 300. The processor 308 may also operate the device 300 to control a process in real-time (e.g., to send and/or receive real-time process data and/or implement control routines to control a process) in the process plant 10.
The memory 310 of the device 300 stores one or more sets of computer-readable or computer-executable instructions that are executable by the processor 308. As such, the memory 310 includes one or more tangible, non-transitory computer-readable storage media. The memory 310 may be implemented as one or more semiconductor memories, magnetically readable memories, optically readable memories, molecular memories, cellular memories, and/or the memory 310 may utilize any other suitable tangible, non-transitory computer-readable storage media or memory storage technology.
The device 300 may collect dynamic measurement and control data, as well as various other types of data, without requiring any user provided information that identifies or indicates a priori which data is to be collected. That is, a configuration of the device 300 excludes any indication of identities of the measurement and control data and various other types of data that is to be collected at the device 300 for historization, e.g., in the embedded big data appliance 312 of the device 300. In currently known process plants or process control systems, an operator or a user typically must configure a process control device (e.g., a controller) to capture measurement and control data by identifying which data is to be collected or saved, and, in some embodiments, by specifying the times or frequencies at which said data is to be collected or saved. The identities (and, optionally, the times/frequencies) of the data to be collected are included in the configuration of the process control device. By contrast, the device 300 need not be configured with the identities of the measurement and control data that is desired to be collected and the times/frequencies of its collection. Indeed, in an embodiment, all measurement and control data as well as all other types of data that is directly generated by and/or directly received at the device 300 is automatically collected.
Further, the rate at which measurement and control data and various other types of data, is collected at and/or transmitted from the distributed big data device 300 also need not be configured into the device 300. That is, the rate at which data is collected and/or transmitted is excluded from a configuration of the device 300. Instead, the device 300 may automatically collect measurement and control data and various other types of data for local historization, in an embodiment.
Turning now to the embedded big data appliance 312 of the distributed big data device 300, the embedded big data appliance 312 may be, for example, the embedded big data appliance 116. As such, the embedded big data appliance 312 of
Generally, the embedded big data receiver 316 receives data collected by the distributed big data device 300 and stores the data in the embedded big data storage 314. Typically, but not necessarily, data that is received via the embedded big data receiver 316 is stored in the embedded big data storage 314, e.g., using a desired schema. The processor 308 may access the embedded big data receiver 316 via instructions stored in the memory 310 while the device 300 is in operation or on-line. The data collected by the distributed big data device 300 may be, for example, data that is transmitted or received via the big data network backbone 105 (e.g., streamed data), and/or may be data that is transmitted or received via other wired and/or wireless process control networks. In some cases, the data that is collected by the distributed by the distributed big data device 300 is generated or created by the device 300 itself.
The embedded big data storage 314 is a unitary, logical data storage area that locally stores and historizes, at the distributed big data device 300, all data including time-series data 314a and metadata 314b. In
The embedded big data storage 314 may also store device configuration data, batch recipes, and/or other data that the distributed big data device 300 uses to resume operations after exiting an off-line state. For example, when a configuration of a device 300 is downloaded or changed, or when a new or changed batch recipe is downloaded, a snapshot of the corresponding data is received via the embedded big data receiver 316 and stored in the embedded big data storage 314. This snapshot may be used during re-boots, restoration, or at any other time when the device 300 moves from an off-line state into an on-line state. As such, communication burst loadings or spikes associated with the transfer of downloaded data from a workstation to the device 300 after changes in state of the device 300 may be decreased or eliminated. For example, delays in batch processing that occur as a result of the lengthy time required to transfer the recipe information to a controller may be decreased or eliminated. In addition, information in the snapshot may be used to trace changes in device configuration and to support a full restoration of configuration parameters and/or batch recipes in the device 300 after a power failure or another event that may cause the device 300 to be off-line.
In an embodiment, all data that is generated by, created by, received at, or otherwise observed by the distributed big data device 300 is caused to be stored in the embedded big data storage 314 via the embedded big data receiver 316. For example, at least a portion of all observed data is continually stored in the embedded big data storage 314.
The embedded big data analyzer 318 performs a local computation or data analysis, at the distributed big data device 300, on at least some of the data stored in the embedded big data storage 314 to determine meaningful patterns, correlations, trends, etc., and, in general, to generate new knowledge. The local computation or data analysis may be, for example, a learned data analysis routine, function or algorithm that was previously generated or created by the distributed big data device 300 itself. In some cases, the computation or data analysis was generated or created by another device, such as by another distributed big data device or by a centralized big data appliance, and the computation or data analysis has been received by and stored at the distributed big data device 300.
As a result of the performed computation or analysis, the embedded big data analyzer 318 may produce learned knowledge such as a new set of data points or observations, descriptive statistics related to the data, correlations in the data, new or modified models for the data, etc. The generated learned knowledge may provide a posteriori analysis of aspects of the device 300 (e.g., diagnostics or trouble shooting), and/or may provide a priori predictions (e.g., prognostics) corresponding to the device 300. In an embodiment, the embedded big data analyzer 318 performs data mining on a selected subset of the data stored in the embedded big data storage 314, and performs pattern evaluation on the mined data to generate the learned knowledge. In some embodiments, multiple embedded big data analyzers 318 or instances thereof may cooperate to generate the learned knowledge.
The resulting learned knowledge may be stored in (e.g., added to) the embedded big data storage 314, for example, and may additionally or alternatively be presented at one or more user interface devices, such as at a distributed big data user interface 112 or legacy user interface. In some cases, the resulting learned knowledge includes additional data that was previously unknown to the device 300. For example, the additional data may include newly identified clusters of data, newly discovered hidden structures within the stored data, previously unknown relationships between stored data sets, etc. In some cases, the resulting learned knowledge includes a new or modified application, a new or modified function, a new or modified routine, a new or modified service, etc. For example, the resulting learned knowledge may be a newly created inferred function, which can be used for mapping new data examples.
In an embodiment, based on the resulting learned knowledge, the distributed big data device 300 may modify its operation to control a process in real-time in the process control system 10. For example, the distributed big data device 300 modifies its process model based on the resulting learned knowledge. In another example, the distributed big data device 300 updates its self-diagnostic routine based on the resulting learned knowledge. The distributed big data device 300 may also store an indication of the modification (e.g., an updated process model or self-diagnostic routine) in the embedded big data storage 314 in conjunction with the resulting learned knowledge. Additionally or alternatively, the distributed big data device 300 may cause the indication of the modification along with the resulting learned knowledge to be transmitted to another distributed big data device and/or to the centralized big data appliance 108 in the process control system 10. Moreover, the distributed big data device 300 may store analysis functions, routines, logic and/or algorithms in the form of analytics code (e.g., R scripts, Python scripts, Matlab® scripts, etc.), which may or may not be based on the resulting learned knowledge. The distributed big data device 300 may cause the stored logic and/or algorithms to be transmitted or downloaded to another distributed big data device. The another distributed big data device may then locally execute an operation using the downloaded logic and/or algorithms. Additionally or alternatively, the distributed big data device 300 may cause the stored logic and/or algorithms to be transmitted to the centralized big data appliance 108 in the process control system 10. The processor 308 may execute the embedded big data analyzer 318 via instructions stored in the memory 310. In an embodiment, the processor 308 may automatically execute the embedded big data analyzer 318 whenever data is collected and stored in the embedded big data storage 314.
The set of embedded big data request servicers or services 320a-320c are each configured to access the time-series data 314a and/or metadata 314b per the request of a requesting entity or application, which may execute on the device 300 or on another device communicatively connected to the device 300. For example, a requesting entity may be a data request application that is being executed by the processor 308 to request access to data stored in the embedded big data storage 314. The data request application may be stored as routines in the memory 310 of the device 300, for example. Based on a request of the data request application, the corresponding data may be retrieved from the embedded big data storage 314, and may be transformed and/or consolidated into data forms that are usable by the data request application. In an embodiment, one or more embedded big data request servicers 320 may perform data retrieval and/or data transformation on at least some of the requested data. Moreover, as previously discussed, at least some of the embedded big data request servicers 320a-320c may be an embedded data analyzer 124. For example, one of the embedded big data request servicers 320a-320b may perform a cross-correlation analysis, and another one of the embedded big data request servicers 320a-320b may perform a regression analysis.
In an embodiment, at least some of the embedded big data request servicers 320 may each provide a particular service or application that requires access to at least some of the data stored in the embedded big data storage 314. For example, the embedded big data request servicer 320a may be a configuration application service, the embedded big data request servicer 320b may be a diagnostic application service, and the embedded big data request servicer 320c may be an advanced control application service. The advanced control application service 320c may include, for example, model predictive control, batch and continuous data analytics, or other applications that require historized data for model building and other purposes. Other embedded big data request servicers 320 may also be included in the embedded big data appliance 312 to support other services or applications, e.g., a communication service, an administration service, an equipment management service, a planning service, and other services.
In an embodiment, at least some of the embedded big data request servicers 320 may support a streaming service. For example, one of the embedded big data request servicers 320 may cause at least a portion of the data stored in the embedded big data storage 314 to be streamed to other distributed big data devices, to the centralized big data appliance 108 in the process control system 10, and/or to the access application. In an embodiment, the other distributed big data devices, the centralized big data appliance 108 or the access application is a subscriber to a streaming service that delivers the stored data from the distributed big data device 300. For example, the device 300 is a host of the streaming service.
In an embodiment, at least some of the embedded big data request servicers 320 may be services (e.g., web services or other services) that are hosted at the distributed big data device 300 by the big data appliance 312 and that are accessible by other nodes of the big data network 100 (e.g., user interface devices 112 or provider devices 110). Accordingly, at least some of the distributed big data devices or nodes 102 may include a respective web server to support a web browser, web client interface, or plug-in corresponding to an embedded big data request servicer 320, in an embodiment. For example, a browser or application hosted at a user interface device 112 may source data or a web page stored at the embedded big data appliance 312.
The distributed big data device 300 in process control plants and systems causes data and/or learned knowledge that is locally observed by the device 300 to be historized in the local embedded big data storage 314. In some cases, local historized data 314 may transmitted, using the network interface 302, to the process control system big data appliance 108 in the process plant or system 10 or to another centralized or distributed big data node. In an embodiment, a schema utilized by the embedded big data storage 314 for historized, data storage at the device 300 is included in a schema utilized by a centralized process control system big data appliance 108. In another embodiment, the data historized in the embedded big data storage 314 is stored according to a local schema of the device 300.
In some embodiments, devices 300 that support distributed big data in process control systems may be utilized for layered or leveled learning of big data in a process control network or system 10. In an example scenario, a distributed big data device 300 transmits its stored data and/or learned knowledge to one or more other intermediate distributed big data devices or nodes so that the one or more other intermediate distributed big data devices or nodes may use the received data and/or learned knowledge in its own local analytics.
To illustrate,
As shown in
At the level 430, the distributed big data process control devices 430a and 430b are depicted as process controllers, each of which is configured with a respective control algorithm to input process control data and execute one or more control functions to generate an output (not shown) to control the process. As shown in
The example configuration of the distributed big data process control devices 410a-410c, 420a, 430a and 430b supports layered or leveled big data storage and learning in the process control system or plant 10. In
For example, each device 410a-410c, 420a, 430a and 430b respectively collects local data at a rate at which the local data is generated, created, received, or otherwise observed, and stores the collected local data in the respective embedded big data storages M1-M6, e.g., as local, historized big data. This distributed, localized big data collection and analytics allows for more timely feedback on potentially detrimental situations occurring within the process plant 10. For example, in an illustrative scenario, the controller 430a controls a collection of process control devices (e.g., field devices 410a-410c and optionally other devices) as part of a control loop included in a process plant that produces a particular product. A certain combination of events in the control loop leads to poor product quality when the product is eventually generated at a later time (e.g., several hours after the occurrence of the combination of events). Rather than detecting and determining the poor product quality several hours hence and trouble-shooting to determine the root causes of the poor product quality (as is currently done in known process control systems), the controller 430a utilizes its embedded big data analyzer L5 to automatically analyze the process data generated by the combination of events at or shortly after their occurrence (e.g., when the data corresponding to the events' occurrences is transmitted to the embedded big data storage M5). The embedded big data analyzer L5 may generate learned knowledge that predicts the poor product quality based on the occurrence of these events, and/or may automatically adjust or change one or more parameters or processes in real-time to mitigate the effects of the combination of events if and when they occur in the future. For instance, the embedded big data analyzer L5 may determine a revised setpoint or revised parameter values and cause the revised values to be used by controller 430a to better regulate and manage the control loop.
Thus, each device 410a-410c, 420a, 430a and 430b uses its respective embedded big data analyzer L1-L6 to analyze data stored in its respective embedded big data storage M1-M6 to determine meaningful patterns, correlations, trends, etc., (e.g., data generated by the each device 410a-410c, 420a, 430a and 430b as a result of its analysis of its local big data). The learned patterns, correlations, trends, etc. is stored in the device's respective embedded big data storage M1-M6, e.g., as learned data. Further, each device 410a-410c, 420a, 430a and 430b may locally determine or define a new service, function, routine, or application (and/or modify an existing service, function, routine, or application) based on the data generated from its analysis of its local big data, e.g., learned services, functions or applications. The respective knowledge data and/or knowledge services, functions, and/or applications that are locally learned at each device 410a-410c, 420a, 430a and 430b is added to or stored in its respective embedded big data storages M1-M6 for subsequent use by the respective device and/or by other devices in layered or leveled learning. As used herein, the term “learned knowledge” generally refers to data, services, functions, routines, and/or applications that are generated as a result of analyzing big data. Still further, each distributed big data device 410a-410c, 420a, 430a and 430b may share its locally learned knowledge with other distributed big devices at the same or different levels.
For example, with reference to
In this illustrative example, the field device 410a causes at least some of the learned knowledge stored in its embedded big data storage M1 to be delivered to the I/O device 420a, such as via the process control system big data network 105 or via another communications network. As shown in
At the level 420, the I/O device 420a stores, in its respective embedded big data storage M4, any learned knowledge generated at and received from the field devices 410a (and, in some embodiments, learned knowledge generated at and received from other the field devices 410b, 410c and/or other devices), along with other data that the I/O device 420a directly (e.g., locally) generates and receives. The I/O device 420a may also use its respective embedded big data analyzer L4 to perform analysis or learning on the other data in conjunction with the learned knowledge received from the field device 410a. For example, continuing with the above flame sensor example, the I/O device 420a receives the learned flame patterns from the device 410a and uses them as a model to analyze other flame data received from other flame sensors connected to the I/O device 420a. In another example, the I/O device 420a accumulates learned knowledge related to alarm data trends from a particular batch of process control devices (not shown in
At the level 430, the controller 430a stores learned knowledge received from other distributed big data devices (e.g., the I/O device 420a, the downstream field devices 410a-410c, the controller 430b) in its embedded big data storage M5 along with data and learned knowledge that the controller 430a itself directly generates and receives. The controller 430a may perform further analysis or learning on at least some of its stored data to generate additional learned knowledge (e.g., data patterns, trends, correlations, etc., services, functions, routines, and/or applications). The additional learned knowledge generated by the controller 430a is stored in its embedded big data storage M5.
In an embodiment, layered or leveled learning is carried out on a bottom-up or downstream-to-upstream basis. In an illustrative example, a field device 410a analyzes its collected data to determine if it is operating correctly, e.g., to determine if the field device 410a is properly calibrated so as to collect the correct data. Knowledge that the field device 410a learns from its analysis may result in the field device 410a generating a new diagnostic routine (e.g., a learned routine) that the field device 410a can use for future diagnostic purposes. The generated diagnostic routine may be stored in the respective embedded big data storage of the field device 410a, e.g., M1. The field device 410a may transmit the generated diagnostic routine to an upstream controller 430a. For example, the field device 410a may independently initiate the sharing of the new diagnostic routine with the upstream controller 430a (e.g., automatically as generated or on a periodic basis), or the field device 410a may cause the new diagnostic routine to be transmitted when the controller 430a requests the field device 410a to share one or more types of new learned knowledge.
In an embodiment, layered or leveled learning is carried out on a top-down or upstream-to-downstream basis. To illustrate, and continuing with the above example, the controller 430a may analyze the received diagnostic routine (e.g. by using its analyzer L5) and determine that the diagnostic routine is useful or applicable to other field devices (e.g., the field devices 410b and 410c) that are being controlled by the controller. Accordingly, the controller 430a may distribute the diagnostic routine to the other field devices 410b, 410c so that the field devices 410b, 410c are able to utilize the diagnostic routine for their respective diagnostic purposes. The controller 430a may independently initiate the sharing of the new diagnostic routine with the downstream field devices 410b, 410c, or the controller 430a may cause the new diagnostic routine to be transmitted upon request of the field device 410a. Alternatively or additionally, the controller 430a may generate a general diagnostic routine by aggregating and analyzing learned knowledge received from all field devices connected to the controller. In this scenario, the controller 430a distributes the general diagnostic routine to any or all of the field devices connected to the controller, e.g., automatically as generated or on a periodic basis, upon request of a particular field device, when the controller 430a receives data from a field device that indicates that the general diagnostic may be of use to the device, or for some other reason.
In an embodiment, layered or leveled learning is carried out between distributed big data devices at the same level. To illustrate, and continuing with the above example, the controller 430a transmits the general diagnostic routine to the controller 430b so that the controller 430b may utilize and/or distribute the general diagnostic routine to devices controlled by the controller 430b. Similarly, the controller 430a may receive another diagnostic routine from the controller 430b, and may distribute the further diagnostic routine to the field devices 410a-410c whenever a diagnostic service is needed by the field devices 410a-410c. Of course, other types of learned knowledge may be shared across devices at the same level, e.g., automatically, upon request, based on the transmitting device perceiving or detecting a need of a recipient device for the learned knowledge, and/or based on other triggers.
In some embodiments, one or more of the devices 410a-410c, 420a, 430a and 430b causes some or all of its local big data stored at their respective embedded big data storages M1-M6 (e.g., including locally generated/received data, locally-generated learned knowledge, and received, remotely-generated learned knowledge) to be delivered and/or streamed to the centralized process control system big data storage area 130. For example, one or more of the devices 410a-410c, 420a, 430a and 430b transmits at least some of its respective stored big data to one or more centralized process control system big data receivers 132 (e.g., by using the network backbone 105). In some embodiments, one or more of the devices 410a-410c, 420a, 430a and 430b pushes at least some of its local big data to the centralized process control system big data storage area 130 at periodic intervals. In some embodiments, one or more of the devices 410a-410c, 420a, 430a and 430b provides at least a portion of its local big data in response to a request (e.g., from the centralized process control system big data appliance 108).
Once received and stored at the centralized process control system big data storage area 130, one or more centralized process control system big data analyzers 134 may operate on the received learned knowledge to generate additional knowledge and determine relationships between various entities and providers internal and external to the process plant 10. In some cases, the centralized process control system big data appliance 108 utilizes the knowledge and relationships generated by the centralized process control system big data analyzers 134 to control one or more processes of the plant 10 accordingly. In an example scenario, at least some of the centralized process control system data analyzers 134 monitor and detect potential security issues associated with the process plant 10, such as increases in log-in patterns, retries, and their respective locations. In another example scenario, the centralized process control big data analyzers 134 analyzes data aggregated across the process plant 10 and one or more other process plants. In this manner, the centralized process control system big data appliance 108 may allow a company that owns or operates multiple process plants to glean and share learned diagnostic and/or prognostic information on a region, an industry, or a company-wide basis.
Thus, the big data appliance 108 may be considered a highest level distributed data device at which learned knowledge may be generated within the process plant 10. Of course, in some process plants, the big data appliance 108 may simultaneously serve as another distributed big data device as well as a centralized big data device. For example, referring to
In
Of course, while leveled or layered big data storage and learning has been discussed with respect to distributed big data provider devices or nodes 110, the concepts and techniques may apply equally to distributed big data user interface devices nodes 112 and/or to other types of distributed big data devices or nodes 114 in process control plants and systems. In an embodiment, a subset of the distributed big data devices or nodes 102 perform leveled or layered big data storage and learning without using an intermediate node.
At a block 502, data corresponding to process control plants or networks may be collected. For example, data that is generated in real-time from the real-time operation and control of a process executing in a process plant is collected by a distributed big data device DBD. The distributed big data device may be communicatively coupled to a communications network of a process plant or process control system, such as via the network backbone 105 of the process control system big data network 100. The distributed big data device may be a process control device that operates to control a process in real-time in the process plant such as a field device, a process controller, an I/O device; a gateway device; an access point; a routing device; a network management device; a user interface device; a historian device; or some other distributed big data device associated with the process plant or with the process in the process plant (e.g., any of the devices DBD shown in
In an embodiment, the data collected at the distributed big data device may include streamed data from other distributed big data devices or that is observed by the distributed big data device itself. In some embodiments, the distributed big data device may cause at least a portion of the collected data to be transmitted or streamed at the block 502. For example, the collected data is immediately streamed from the distributed big data device to be historized at the centralized big data appliance 108.
At a block 504, the collected data may be stored in an embedded big data apparatus at the distributed big data device, such as the embedded big data apparatus 116. For example, the data and its respective timestamp are stored as an entry in an embedded big data storage of the embedded big data apparatus. In embodiments where multiple values of the data are obtained over time (block 502), each value is stored, along with its respective timestamp, in the same entry or in a different entry of the embedded big data storage.
At a block 506, one or more learning analyses are performed on at least a portion of the stored data, e.g., to learn, predict, or discover new knowledge, meaningful relationships, patterns, correlations, trends, etc. The one or more learning analyses (e.g., as performed by one or more of the embedded data analyzers 124) may include any number of data discovery and/or learning algorithms and techniques such as previously discussed, e.g., a partial least square analysis, a random forest, a pattern recognition, a predictive analysis, a correlation analysis, a principle component analysis, a machine learning analysis, data mining, data discovery, or other techniques. In an example, the embedded big data appliance 116 analyzes at least some of the stored data to extract data patterns, which are then evaluated to discover patterns of interest that represent knowledge based on interestingness measures. In some cases, the embedded big data appliance 116 determines which learning analysis or analyses to use, and determines what portions (or in some cases, all) of the stored data on which the learning analysis or analyses is to operate. For example, the determination of the learning analysis includes a selection or a derivation of the learning analysis. As such, the selection or derivation of the learning analysis may be based on one or more properties of at least a portion of the stored data, e.g., based on the respective timestamp associated with the stored data, based on offsets or other measures present in the stored data, based on the type of field devices that the stored data originated from, based on certain identified clusters within the stored data, etc.
At a block 508, learned knowledge that is indicative of a result of the learning analysis is created or generated, e.g., by the embedded big data appliance 116. For example, created or generated learned knowledge includes learned data and/or one or more learned applications, functions, routines, services, or modifications thereto. The learned knowledge may provide new information (e.g., to the device performing the method 500, to other distributed big data devices, and/or to the centralized process control system big data appliance 108) that is useful for any number of prediction, modeling, diagnostics, and/or trouble shooting purposes. Typically, but not necessarily, the learned knowledge is locally stored in or added to the embedded big data storage 120 of the embedded big data apparatus 116.
At a block 510, based on the learned knowledge (block 505), the method 500 includes modifying an operation of a distributed big data device that controls, in real-time, at least a portion of the process in the process plant. For example, learned knowledge could result in a creation of a new diagnostic that is subsequently performed by the device, or a creation of a new process model which is implemented in the device. Additionally or alternatively, the method includes causing at least some of the learned knowledge to be transmitted to another distributed big data device DBD and/or to the centralized big data appliance 108, e.g., for the recipient distributed big data device to utilize in its respective learning analyses. In some embodiments, only one of the blocks 510 or 512 is included in the method 500. In other embodiments, the blocks 510 and 512 are executed in sequence so that the distributed big data device first modifies its operation based on the learned knowledge (block 510) and then transmits that learned knowledge to other big data devices (block 512), or vice versa. In still other embodiments of the method 500, the blocks 510 and 512 are executed in parallel.
The method 500 optionally includes receiving additional learned knowledge (block 514) from other distributed big data devices DBD in the process plant, and/or from the centralized big data appliance 108. The distributed big data device may store (block 504) the received learned knowledge (e.g., in its embedded storage 120), and may perform one or more subsequent learning analyses (block 506) on the additional learned knowledge and at least a portion of the stored data. Based on the outputs of the subsequent learning analysis or analyses, additional learned knowledge may be created, generated (block 508), and optionally stored at the distributed big data device. In some situations, based on the newly generated learned knowledge, one or more operations of the distributed data device are modified (block 510), and/or at least some of the new learned knowledge is transmitted to one or more other big data devices (block 512) or applications.
Embodiments of the techniques described in the present disclosure may include any number of the following aspects, either alone or combination:
1. A process control device for supporting distributed big data in a process plant, the process control device including a processor and one or more tangible, non-transitory, computer-readable storage media having stored thereon a set of computer-executable instructions that, when executed by the processor, cause the process control device to operate to control, in real-time, at least a portion of a process executed by the process plant by at least one of: generating process data used to control the at least the portion of the process, or operating on received process data to control the at least the portion of the process. As such, the generated process data and the received process data may be process data that is generated from real-time control of the process. The process control device further includes an indication of a type of the process control device, where the type corresponds to one of a field device, a controller, or an input/output (I/O) device disposed between and connected to the field device and the controller. Still further, the process control device includes an embedded big data apparatus that is configured to store the generated process data and the received process data; perform a learning analysis on at least a part of the stored process data; create learned knowledge based on a result of the learning analysis; and cause the learned knowledge to be transmitted to another process control device in the process plant.
2. The process control device of the previous aspect, wherein the stored process data includes multiple types of data, and wherein a set of types of the stored process data includes continuous data, event data, measurement data, batch data, calculated data, and configuration data corresponding to controlling the process executed by the process plant.
3. The process control device of any one of the previous aspects, wherein the embedded big data apparatus is further configured to determine the learning analysis based on the stored process data, and wherein the determination of the learning analysis is at least one of a selection or a derivation of the learning analysis.
4. The process control device of any one of the previous aspects, wherein the learning analysis includes at least one of a partial least square regression analysis, a random forest, a pattern recognition, a predictive analysis, a correlation analysis, a principle component analysis, data mining, or data discovery.
5. The process control device of any one of the previous aspects, wherein the embedded big data apparatus is further configured to receive another data analysis algorithm from another big data device and to execute the another data analysis algorithm.
6. The process control device of any one of the previous aspects, wherein at least one of: the another big data device is one of another distributed data device or a centralized big data device of the process plant; or the another data analysis includes at least one of an R script, a Python script, or a Matlab script.
7. The process control device of any one of the previous aspects, wherein the process control device is further configured to modify, based on the learned knowledge, an operation of the process control device to control, in real-time, the process executed by the process plant, and to cause an indication of the modification to be transmitted to the another process control device in conjunction with the learned knowledge.
8. The process control device of any one of the previous aspects, wherein the modification is an updated process model.
9. The process control device of any one of the previous aspects, further comprising one or more interfaces connecting the process control device to at least one of a wired communications network or a wireless communications network.
10. The process control device of any one of the previous aspects, wherein the one or more interfaces include: a first interface coupled to a first communication network via which the learned knowledge is transmitted to the another process control device, and a second interface coupled to a second communications network different from the first communications network, the second interface used by the process control device to at least one of transmit the generated process data or receive the received process data.
11. The process control device of any one of the previous aspects, wherein the learned knowledge is first learned knowledge, the learning analysis is a first learning analysis, and the another process control device is a first other process control device; and wherein the embedded big data apparatus is further configured to: receive second learned knowledge created by the first other process control device or created by a second other process control device, and at least one of (i) modify, based on the received second learned knowledge, an operation of the process control device to control, in real-time, the process, or (2) perform a second learning analysis on at least some of the stored process data and the received second learned knowledge.
12. The process control device of any one of the previous aspects, wherein the learned knowledge includes at least one of additional data that was previously unknown to the process control device, an application, a service, a routine, or a function.
13. A method of supporting distributed big data using a device of zero or more of the previous aspects, the device being communicatively coupled to a communications network of a process plant, and the device operating to control a process in real-time in the process plant. The method includes collecting data at the device, where the collected data includes at least one of: (i) data that is generated by the device, (ii) data that is created by the device, or (iii) data that is received at the device. The collected data generally is a result of the control of the process in real-time, and a type of the device is included in a set of device types that includes a field device, a controller, and an input/output (I/O) device. The method also includes storing, in an embedded big data apparatus of the device, the collected data; and performing, by the embedded big data apparatus of the device, a learning analysis on at least a portion of the stored data. Further, the method includes generating learned knowledge indicative of a result of the learning analysis; and modifying, based on the learned knowledge, an operation of the device to control the process in real-time.
14. The method of any one of the previous aspects, wherein collecting the data at the device comprises at least one of: collecting all data that is generated by the device, collecting all data that is created by the device, or collecting all data that is received at the device.
15. The method of any one of the previous aspects, wherein collecting the data at the device comprises at least one of: collecting data that is generated by the device at a rate of generation, collecting all data that is created by the device at a rate of creation, or collecting all data that is received at the device at a rate of reception.
16. The method of any one of the previous aspects, wherein collecting the data at the device comprises collecting, at the device, at least one type of data included in a set of types of data that includes continuous data, event data, measurement data, batch data, calculated data, and configuration data.
17. The method of any one of the previous aspects, wherein the device is a first device, the learned knowledge is first learned knowledge, and the operation of the device is a first operation; and the method further comprises receiving, at the first device, second learned knowledge generated by a second device; performing, by the embedded big data apparatus of the first device, a further learning analysis on the second learned knowledge and at least some of the stored data; generating, by the embedded big data apparatus of the first device, further learned knowledge indicative of a result of the further learning analysis; and modifying the first operation or a second operation of the device to control the process in real-time based on further learned knowledge.
18. The method of any one of the previous aspects, wherein receiving the second learned knowledge generated by the second device comprises receiving the second learned knowledge generated by another device that is one of: a field device, a controller, an I/O device, a user interface device, a gateway device, an access point, a routing device, a historian device, or a network management device.
19. The method of any one of the previous aspects, further comprising causing the learned knowledge to be transmitted to another device, wherein a device type of the another device is included in the set of device types.
20. The method of any one of the previous aspects, wherein generating the learned knowledge comprises generating at least one of: additional data that was previously unknown to the device, a new or modified application, a new or modified function, a new or modified routine, or a new or modified service.
21. The method of any one of the previous aspects, wherein performing the learning analysis comprises performing at least one of a machine learning analysis, a predictive analysis, data mining, or data discovery.
22. A system for supporting distributed big data in a process plant comprising: a communications network having a plurality of nodes, at least one of which is a process control device operating, in real-time, to control a process executing in the process plant, and each of the plurality of nodes is configured to: collect data generated in real-time resulting from control of the process executing in the process plant; locally store the collected data at a respective embedded big data apparatus included in the each of the plurality of nodes; and perform, using the respective embedded big data apparatus included in the each of the plurality of nodes, a respective learning analysis on at least a portion of the locally stored data. A first node included in the plurality of nodes is further configured to cause learned knowledge indicative of a result of a performance of the respective learning analysis to be transmitted to a second node included in the plurality of nodes for use in one or more learning analyses performed by the second node. The system may be configured to perform the method of any zero or more of the previous aspects, and may include a process control device according to any of the previous aspects.
23. The system of any one of the previous aspects, wherein: the process control device is a controller configured to receive a set of inputs and determine, based on the set of inputs, a value of an output. The controller is further configured to cause the output to be transmitted to a field device to control the process executed by the process plant, and the field device is configured to perform a physical function based on the output of the controller to control the process executed by the process plant.
24. The system of any one of the previous aspects, wherein the communications network is a first communications network, and wherein the controller is configured to at least one of: receive at least one input of the set of inputs at an interface to a second communications network, or cause the output to be transmitted to the field device via the interface to the second communications network.
25. The system of any one of the previous aspects, wherein the learned knowledge includes at least one of an application, a function, a service, or a routine.
26. The system of any one of the previous aspects, wherein the result of the performance of the respective learning analysis includes a prediction based on properties of the at least the portion of the locally stored data.
27. The system of any one of the previous aspects, wherein the result of the performance of the respective learning analysis includes additional data that was previously unknown to the first node.
28. The system of any one of the previous aspects, wherein the learned knowledge is first learned knowledge, and wherein the second node is configured to: receive the first learned knowledge from the first node; perform, by a respective embedded big data apparatus included in the second node, one or more learning analyses on the first learned knowledge and at least a portion of locally collected and stored data at the second node; generate second learned knowledge from the performed one or more learning analyses, and at least one of: store, at the respective embedded big data apparatus of the second node, the second learned knowledge; modify an operation of the second node to control the process based on the second learned knowledge; or cause the second learned knowledge to be transmitted to a third node of the plurality of nodes.
29. The system of any one of the previous aspects, wherein the third node is configured to: receive the second learned knowledge from the second node; perform, by a respective embedded big data apparatus of the third node, one or more learning analyses on the second learned knowledge and at least a portion of locally collected and stored data at the third node; generate third learned knowledge from the performed one or more learning analyses, and at least one of: store, at the respective embedded big data apparatus of the third node, the third learned knowledge; modify an operation of the third node to control the process based on the third learned knowledge; or cause the third learned knowledge to be transmitted to a fourth node of the plurality of nodes.
30. The system of any one of the previous aspects, wherein the plurality of nodes includes at least two devices from a set of devices including: a controller configured to receive a set of inputs, determine, based on the set of inputs, a value of an output, and cause the output to be transmitted to a first field device to control the process executed by the process plant; a field device being configured to perform a physical function based on the output of the controller to control the process; an input/output (I/O) device having a interface to the controller and an interface to at least one field device; a user interface device; a gateway device; an access point; a routing device; a historian device; and a network management device.
When implemented in software, any of the applications, services, and engines described herein may be stored in any tangible, non-transitory computer readable memory such as on a magnetic disk, a laser disk, solid state memory device, molecular memory storage device, or other storage medium, in a RAM or ROM of a computer or processor, etc. Although the example systems disclosed herein are disclosed as including, among other components, software and/or firmware executed on hardware, it should be noted that such systems are merely illustrative and should not be considered as limiting. For example, it is contemplated that any or all of these hardware, software, and firmware components could be embodied exclusively in hardware, exclusively in software, or in any combination of hardware and software. Accordingly, while the example systems described herein are described as being implemented in software executed on a processor of one or more computer devices, persons of ordinary skill in the art will readily appreciate that the examples provided are not the only way to implement such systems.
Thus, while the present invention has been described with reference to specific examples, which are intended to be illustrative only and not to be limiting of the invention, it will be apparent to those of ordinary skill in the art that changes, additions or deletions may be made to the disclosed embodiments without departing from the spirit and scope of the invention.
This application claims priority to and the benefit of the filing date of U.S. Application No. 61/783,112, entitled “Collecting and Delivering Data to a Big Data Machine in a Process Control System” and filed on Mar. 14, 2013, the entire disclosure of which is hereby incorporated by reference herein. This application is also related to U.S. application Ser. No. 13/784,041, entitled “Big Data in Process Control Systems” and filed on Mar. 7, 2013, the entire disclosure of which is hereby incorporated by reference herein. Additionally, this application is related to U.S. application Ser. No. 14/212,411 (which issued as U.S. Pat. No. 9,804,588), entitled “Determining Associations and Alignments of Process Elements and Measurements in a Process” and filed concurrently herewith, the entire disclosure of which is hereby incorporated by reference herein.
Number | Name | Date | Kind |
---|---|---|---|
4451047 | Herd et al. | May 1984 | A |
4593367 | Slack | Jun 1986 | A |
4901221 | Kodosky et al. | Feb 1990 | A |
4914568 | Kodosky et al. | Apr 1990 | A |
5111531 | Grayson et al. | May 1992 | A |
5164897 | Clark et al. | Nov 1992 | A |
5291587 | Kodosky et al. | Mar 1994 | A |
5301301 | Kodosky et al. | Apr 1994 | A |
5301336 | Kodosky et al. | Apr 1994 | A |
5475851 | Kodosky et al. | Dec 1995 | A |
5481740 | Kodosky | Jan 1996 | A |
5481741 | McKaskle et al. | Jan 1996 | A |
5497500 | Rogers et al. | Mar 1996 | A |
5544320 | Konrad | Aug 1996 | A |
5568491 | Beal et al. | Oct 1996 | A |
5598572 | Tanikoshi et al. | Jan 1997 | A |
5610828 | Kodosky et al. | Mar 1997 | A |
5652909 | Kodosky | Jul 1997 | A |
D384050 | Kodosky | Sep 1997 | S |
D384051 | Kodosky | Sep 1997 | S |
D384052 | Kodosky | Sep 1997 | S |
D387750 | Kodosky | Dec 1997 | S |
5732277 | Kodosky et al. | Mar 1998 | A |
5734863 | Kodosky et al. | Mar 1998 | A |
5737622 | Rogers et al. | Apr 1998 | A |
5801942 | Nixon et al. | Sep 1998 | A |
5801946 | Nissen et al. | Sep 1998 | A |
5821934 | Kodosky et al. | Oct 1998 | A |
5828851 | Nixon et al. | Oct 1998 | A |
5838563 | Dove et al. | Nov 1998 | A |
5856931 | McCasland | Jan 1999 | A |
5862052 | Nixon et al. | Jan 1999 | A |
5862054 | Li | Jan 1999 | A |
5909368 | Nixon et al. | Jun 1999 | A |
5917489 | Thurlow et al. | Jun 1999 | A |
5940294 | Dove | Aug 1999 | A |
5971747 | Lemelson et al. | Oct 1999 | A |
5980078 | Krivoshein et al. | Nov 1999 | A |
5987246 | Thomsen et al. | Nov 1999 | A |
5988847 | McLaughlin et al. | Nov 1999 | A |
5990906 | Hudson et al. | Nov 1999 | A |
5995916 | Nixon et al. | Nov 1999 | A |
6009422 | Ciccarelli | Dec 1999 | A |
6032208 | Nixon et al. | Feb 2000 | A |
6064409 | Thomsen et al. | May 2000 | A |
6078320 | Dove et al. | Jun 2000 | A |
6098116 | Nixon et al. | Aug 2000 | A |
6167464 | Kretschmann | Dec 2000 | A |
6173438 | Kodosky et al. | Jan 2001 | B1 |
6178504 | Fieres et al. | Jan 2001 | B1 |
6195591 | Nixon et al. | Feb 2001 | B1 |
6219628 | Kodosky et al. | Apr 2001 | B1 |
6266726 | Nixon et al. | Jul 2001 | B1 |
6278374 | Ganeshan | Aug 2001 | B1 |
6285966 | Brown et al. | Sep 2001 | B1 |
6295513 | Thackston | Sep 2001 | B1 |
6324877 | Neeley | Dec 2001 | B2 |
6347253 | Fujita et al. | Feb 2002 | B1 |
6421570 | McLaughlin et al. | Jul 2002 | B1 |
6442515 | Varma et al. | Aug 2002 | B1 |
6463352 | Tadokoro et al. | Oct 2002 | B1 |
6529780 | Soergel et al. | Mar 2003 | B1 |
6535883 | Lee et al. | Mar 2003 | B1 |
6563430 | Kemink et al. | May 2003 | B1 |
6584601 | Kodosky et al. | Jun 2003 | B1 |
6608638 | Kodosky et al. | Aug 2003 | B1 |
6609036 | Bickford | Aug 2003 | B1 |
6658114 | Farn et al. | Dec 2003 | B1 |
6701285 | Salonen | Mar 2004 | B2 |
6715078 | Chasko et al. | Mar 2004 | B1 |
6715139 | Kodosky et al. | Mar 2004 | B1 |
6763515 | Vazquez et al. | Jul 2004 | B1 |
6768116 | Berman et al. | Jul 2004 | B1 |
6772017 | Dove et al. | Aug 2004 | B1 |
6784903 | Kodosky et al. | Aug 2004 | B2 |
6847850 | Grumelart | Jan 2005 | B2 |
6868538 | Nixon et al. | Mar 2005 | B1 |
6917839 | Bickford | Jul 2005 | B2 |
6934667 | Kodosky et al. | Aug 2005 | B2 |
6934668 | Kodosky et al. | Aug 2005 | B2 |
6954724 | Kodosky et al. | Oct 2005 | B2 |
6961686 | Kodosky et al. | Nov 2005 | B2 |
6965886 | Govrin et al. | Nov 2005 | B2 |
6970758 | Shi et al. | Nov 2005 | B1 |
6971066 | Schultz et al. | Nov 2005 | B2 |
6983228 | Kodosky et al. | Jan 2006 | B2 |
6993466 | Kodosky et al. | Jan 2006 | B2 |
7000190 | Kudukoli et al. | Feb 2006 | B2 |
7006881 | Hoffberg et al. | Feb 2006 | B1 |
7010470 | Kodosky et al. | Mar 2006 | B2 |
7062718 | Kodosky et al. | Jun 2006 | B2 |
7072722 | Colonna et al. | Jul 2006 | B1 |
7123974 | Hamilton | Oct 2006 | B1 |
7134086 | Kodosky | Nov 2006 | B2 |
7134090 | Kodosky et al. | Nov 2006 | B2 |
7143149 | Oberg et al. | Nov 2006 | B2 |
7143289 | Denning et al. | Nov 2006 | B2 |
7177786 | Kodosky et al. | Feb 2007 | B2 |
7185287 | Ghercioiu et al. | Feb 2007 | B2 |
7200838 | Kodosky et al. | Apr 2007 | B2 |
7210117 | Kudukoli et al. | Apr 2007 | B2 |
7213057 | Trethewey et al. | May 2007 | B2 |
7216334 | Kodosky et al. | May 2007 | B2 |
7219306 | Kodosky et al. | May 2007 | B2 |
7222131 | Grewal et al. | May 2007 | B1 |
7283914 | Poorman et al. | Oct 2007 | B2 |
7283971 | Levine et al. | Oct 2007 | B1 |
7302675 | Rogers et al. | Nov 2007 | B2 |
7314169 | Jasper et al. | Jan 2008 | B1 |
7340737 | Ghercioiu et al. | Mar 2008 | B2 |
7343605 | Langkafel et al. | Mar 2008 | B2 |
7346404 | Eryurek et al. | Mar 2008 | B2 |
7367028 | Kodosky et al. | Apr 2008 | B2 |
7478337 | Kodosky et al. | Jan 2009 | B2 |
7506304 | Morrow et al. | Mar 2009 | B2 |
7530052 | Morrow et al. | May 2009 | B2 |
7530113 | Braun | May 2009 | B2 |
7536548 | Batke et al. | May 2009 | B1 |
RE40817 | Krivoshein et al. | Jun 2009 | E |
7541920 | Tambascio et al. | Jun 2009 | B2 |
7548873 | Veeningen | Jun 2009 | B2 |
7558711 | Kodosky et al. | Jul 2009 | B2 |
7565306 | Apostolides | Jul 2009 | B2 |
7574690 | Shah et al. | Aug 2009 | B2 |
7594220 | Kodosky et al. | Sep 2009 | B2 |
7598856 | Nick et al. | Oct 2009 | B1 |
7606681 | Esmaili et al. | Oct 2009 | B2 |
7616095 | Jones et al. | Nov 2009 | B2 |
7617542 | Vataja | Nov 2009 | B2 |
7627860 | Kodosky et al. | Dec 2009 | B2 |
7630914 | Veeningen | Dec 2009 | B2 |
7640007 | Chen et al. | Dec 2009 | B2 |
7644052 | Chang | Jan 2010 | B1 |
7650264 | Kodosky et al. | Jan 2010 | B2 |
7653563 | Veeningen | Jan 2010 | B2 |
7668608 | Nixon et al. | Feb 2010 | B2 |
7676281 | Hood et al. | Mar 2010 | B2 |
7680546 | Gilbert et al. | Mar 2010 | B2 |
7684877 | Weatherhead et al. | Mar 2010 | B2 |
RE41228 | Kodosky et al. | Apr 2010 | E |
7694273 | Kodosky et al. | Apr 2010 | B2 |
7707014 | Kodosky et al. | Apr 2010 | B2 |
7715929 | Skourup et al. | May 2010 | B2 |
7716489 | Brandt et al. | May 2010 | B1 |
7720727 | Keyes et al. | May 2010 | B2 |
7818715 | Kodosky et al. | Oct 2010 | B2 |
7818716 | Kodosky et al. | Oct 2010 | B2 |
7827122 | Campbell, Jr. et al. | Nov 2010 | B1 |
7831914 | Kodosky et al. | Nov 2010 | B2 |
7844908 | Kodosky et al. | Nov 2010 | B2 |
7853431 | Samardzija | Dec 2010 | B2 |
7865349 | Kodosky et al. | Jan 2011 | B2 |
7882490 | Kodosky et al. | Feb 2011 | B2 |
7882491 | Kodosky et al. | Feb 2011 | B2 |
7925979 | Forney et al. | Apr 2011 | B2 |
7930639 | Baier et al. | Apr 2011 | B2 |
7934095 | Laberteaux et al. | Apr 2011 | B2 |
7937665 | Vazquez et al. | May 2011 | B1 |
7962440 | Baier et al. | Jun 2011 | B2 |
7978059 | Petite et al. | Jul 2011 | B2 |
7979843 | Kodosky et al. | Jul 2011 | B2 |
7984423 | Kodosky et al. | Jul 2011 | B2 |
7987448 | Kodosky et al. | Jul 2011 | B2 |
8014722 | Abel et al. | Sep 2011 | B2 |
8028241 | Kodosky et al. | Sep 2011 | B2 |
8028242 | Kodosky et al. | Sep 2011 | B2 |
8055787 | Victor et al. | Nov 2011 | B2 |
8060834 | Lucas et al. | Nov 2011 | B2 |
8073967 | Peterson et al. | Dec 2011 | B2 |
8074201 | Ghercioiu et al. | Dec 2011 | B2 |
8099712 | Kodosky et al. | Jan 2012 | B2 |
8102400 | Cook et al. | Jan 2012 | B1 |
8126964 | Pretlove et al. | Feb 2012 | B2 |
8132225 | Chand et al. | Mar 2012 | B2 |
8146053 | Morrow et al. | Mar 2012 | B2 |
8166296 | Buer et al. | Apr 2012 | B2 |
8171137 | Parks et al. | May 2012 | B1 |
8185217 | Thiele | May 2012 | B2 |
8185495 | Clark | May 2012 | B2 |
8185832 | Kodosky et al. | May 2012 | B2 |
8185833 | Kodosky et al. | May 2012 | B2 |
8185871 | Nixon et al. | May 2012 | B2 |
8190888 | Batke et al. | May 2012 | B2 |
8191005 | Baier et al. | May 2012 | B2 |
8214455 | Baier et al. | Jul 2012 | B2 |
8218651 | Eshet et al. | Jul 2012 | B1 |
8219669 | Agrusa et al. | Jul 2012 | B2 |
8224496 | Musti et al. | Jul 2012 | B2 |
8239848 | Ghercioiu et al. | Aug 2012 | B2 |
8266066 | Wezter et al. | Sep 2012 | B1 |
8290762 | Kodosky et al. | Oct 2012 | B2 |
8307330 | Kumar et al. | Nov 2012 | B2 |
8316313 | Campney et al. | Nov 2012 | B2 |
8321663 | Medvinsky et al. | Nov 2012 | B2 |
8327130 | Wilkinson, Jr. et al. | Dec 2012 | B2 |
8350666 | Kore | Jan 2013 | B2 |
8359567 | Kornerup et al. | Jan 2013 | B2 |
8397172 | Kodosky et al. | Mar 2013 | B2 |
8397205 | Kornerup et al. | Mar 2013 | B2 |
8413118 | Kodosky et al. | Apr 2013 | B2 |
8417360 | Sustaeta et al. | Apr 2013 | B2 |
8417595 | Keyes et al. | Apr 2013 | B2 |
8418071 | Kodosky et al. | Apr 2013 | B2 |
8429627 | Jedlicka et al. | Apr 2013 | B2 |
8448135 | Kodosky | May 2013 | B2 |
8521332 | Tiemann et al. | Aug 2013 | B2 |
8532795 | Adavi et al. | Sep 2013 | B2 |
8570922 | Pratt, Jr. et al. | Oct 2013 | B2 |
8612870 | Kodosky et al. | Dec 2013 | B2 |
8624725 | MacGregor | Jan 2014 | B1 |
8640112 | Yi et al. | Jan 2014 | B2 |
8656351 | Kodosky et al. | Feb 2014 | B2 |
8688780 | Gordon et al. | Apr 2014 | B2 |
8781776 | Onda et al. | Jul 2014 | B2 |
8832236 | Hernandez et al. | Sep 2014 | B2 |
8943469 | Kumar et al. | Jan 2015 | B2 |
8977851 | Neitzel et al. | Mar 2015 | B2 |
9002973 | Panther | Apr 2015 | B2 |
9021021 | Backholm | Apr 2015 | B2 |
9024972 | Bronder et al. | May 2015 | B1 |
9038043 | Fleetwood | May 2015 | B1 |
9047007 | Kodosky et al. | Jun 2015 | B2 |
9088665 | Boyer et al. | Jul 2015 | B2 |
9098164 | Kodosky | Aug 2015 | B2 |
9110558 | Kodosky | Aug 2015 | B2 |
9119166 | Sheikh | Aug 2015 | B1 |
9122764 | Neitzel et al. | Sep 2015 | B2 |
9122786 | Cammert et al. | Sep 2015 | B2 |
9134895 | Dove et al. | Sep 2015 | B2 |
9229871 | Washiro | Jan 2016 | B2 |
9235395 | Kodosky et al. | Jan 2016 | B2 |
9338218 | Florissi et al. | May 2016 | B1 |
9361320 | Vijendra et al. | Jun 2016 | B1 |
9397836 | Nixon et al. | Jul 2016 | B2 |
9424398 | McLeod et al. | Aug 2016 | B1 |
9430114 | Dingman et al. | Aug 2016 | B1 |
9459809 | Chen et al. | Oct 2016 | B1 |
9532232 | Dewey et al. | Dec 2016 | B2 |
9541905 | Nixon | Jan 2017 | B2 |
9558220 | Nixon et al. | Jan 2017 | B2 |
9652213 | MacCleery et al. | May 2017 | B2 |
9678484 | Nixon et al. | Jun 2017 | B2 |
9697170 | Nixon et al. | Jul 2017 | B2 |
9804588 | Blevins et al. | Oct 2017 | B2 |
9892353 | Lui et al. | Feb 2018 | B1 |
20020010694 | Navab et al. | Jan 2002 | A1 |
20020035495 | Spira et al. | Mar 2002 | A1 |
20020052715 | Maki | May 2002 | A1 |
20020054130 | Abbott et al. | May 2002 | A1 |
20020064138 | Saito et al. | May 2002 | A1 |
20020080174 | Kodosky et al. | Jun 2002 | A1 |
20020087419 | Andersson et al. | Jul 2002 | A1 |
20020094085 | Roberts | Jul 2002 | A1 |
20020120475 | Morimoto | Aug 2002 | A1 |
20020128998 | Kil et al. | Sep 2002 | A1 |
20020130846 | Nixon et al. | Sep 2002 | A1 |
20020138168 | Salonen | Sep 2002 | A1 |
20020138320 | Robertson et al. | Sep 2002 | A1 |
20020149497 | Jaggi | Oct 2002 | A1 |
20020159441 | Travaly et al. | Oct 2002 | A1 |
20020169514 | Eryurek et al. | Nov 2002 | A1 |
20030020726 | Charpentier | Jan 2003 | A1 |
20030023795 | Packwood et al. | Jan 2003 | A1 |
20030028495 | Pallante | Feb 2003 | A1 |
20030037119 | Austin | Feb 2003 | A1 |
20030061295 | Oberg et al. | Mar 2003 | A1 |
20030083756 | Hsiung | May 2003 | A1 |
20030084053 | Govrin et al. | May 2003 | A1 |
20030093309 | Tanikoshi et al. | May 2003 | A1 |
20030147351 | Greenlee | Aug 2003 | A1 |
20030154044 | Lundstedt | Aug 2003 | A1 |
20030195934 | Peterson et al. | Oct 2003 | A1 |
20040005859 | Ghercioiu et al. | Jan 2004 | A1 |
20040012632 | King et al. | Jan 2004 | A1 |
20040014479 | Milman | Jan 2004 | A1 |
20040075689 | Schleiss et al. | Apr 2004 | A1 |
20040093102 | Liiri et al. | May 2004 | A1 |
20040117233 | Rapp | Jun 2004 | A1 |
20040133457 | Sadiq et al. | Jul 2004 | A1 |
20040153437 | Buchan | Aug 2004 | A1 |
20040153804 | Blevins et al. | Aug 2004 | A1 |
20040203874 | Brandt et al. | Oct 2004 | A1 |
20040204775 | Keyes et al. | Oct 2004 | A1 |
20040210330 | Birkle | Oct 2004 | A1 |
20040230328 | Armstrong et al. | Nov 2004 | A1 |
20040233930 | Colby | Nov 2004 | A1 |
20050005259 | Avery et al. | Jan 2005 | A1 |
20050060111 | Ramillon et al. | Mar 2005 | A1 |
20050062677 | Nixon et al. | Mar 2005 | A1 |
20050080799 | Harnden et al. | Apr 2005 | A1 |
20050096872 | Blevins et al. | May 2005 | A1 |
20050130634 | Godfrey | Jun 2005 | A1 |
20050164684 | Chen et al. | Jul 2005 | A1 |
20050182650 | Maddox et al. | Aug 2005 | A1 |
20050187649 | Funk | Aug 2005 | A1 |
20050213768 | Durham et al. | Sep 2005 | A1 |
20050222691 | Glas et al. | Oct 2005 | A1 |
20050222698 | Eryurek et al. | Oct 2005 | A1 |
20050264527 | Lin | Dec 2005 | A1 |
20060031826 | Hiramatsu et al. | Feb 2006 | A1 |
20060064291 | Pattipatti | Mar 2006 | A1 |
20060064472 | Mirho | Mar 2006 | A1 |
20060069717 | Mamou et al. | Mar 2006 | A1 |
20060087402 | Manning et al. | Apr 2006 | A1 |
20060168396 | LaMothe et al. | Jul 2006 | A1 |
20060200260 | Hoffberg et al. | Sep 2006 | A1 |
20060200771 | Nielsen et al. | Sep 2006 | A1 |
20060218107 | Young | Sep 2006 | A1 |
20060235741 | Deaton et al. | Oct 2006 | A1 |
20060241792 | Pretlove et al. | Oct 2006 | A1 |
20060288091 | Oh et al. | Dec 2006 | A1 |
20060288330 | Bahrami et al. | Dec 2006 | A1 |
20060291481 | Kumar | Dec 2006 | A1 |
20060294087 | Mordvinov | Dec 2006 | A1 |
20070005266 | Blevins et al. | Jan 2007 | A1 |
20070014406 | Scheidt et al. | Jan 2007 | A1 |
20070038889 | Wiggins et al. | Feb 2007 | A1 |
20070067725 | Cahill et al. | Mar 2007 | A1 |
20070078696 | Hardin | Apr 2007 | A1 |
20070112574 | Greene | May 2007 | A1 |
20070118516 | Li et al. | May 2007 | A1 |
20070130310 | Batke et al. | Jun 2007 | A1 |
20070130572 | Gilbert et al. | Jun 2007 | A1 |
20070132779 | Gilbert et al. | Jun 2007 | A1 |
20070139441 | Lucas et al. | Jun 2007 | A1 |
20070142936 | Denison et al. | Jun 2007 | A1 |
20070168060 | Nixon et al. | Jul 2007 | A1 |
20070179645 | Nixon et al. | Aug 2007 | A1 |
20070185754 | Schmidt | Aug 2007 | A1 |
20070211079 | Nixon et al. | Sep 2007 | A1 |
20070239292 | Ehrman et al. | Oct 2007 | A1 |
20070250292 | Alagappan | Oct 2007 | A1 |
20070265801 | Foslien et al. | Nov 2007 | A1 |
20070265866 | Fehling et al. | Nov 2007 | A1 |
20080040719 | Shimizu et al. | Feb 2008 | A1 |
20080046104 | Van Camp et al. | Feb 2008 | A1 |
20080058968 | Sharma et al. | Mar 2008 | A1 |
20080065243 | Fallman et al. | Mar 2008 | A1 |
20080065705 | Miller | Mar 2008 | A1 |
20080065706 | Miller et al. | Mar 2008 | A1 |
20080076431 | Fletcher et al. | Mar 2008 | A1 |
20080078189 | Ando | Apr 2008 | A1 |
20080079596 | Baier et al. | Apr 2008 | A1 |
20080082180 | Blevins et al. | Apr 2008 | A1 |
20080082181 | Miller | Apr 2008 | A1 |
20080082195 | Samardzija | Apr 2008 | A1 |
20080097622 | Forney et al. | Apr 2008 | A1 |
20080103843 | Goeppert et al. | May 2008 | A1 |
20080104189 | Baker et al. | May 2008 | A1 |
20080125912 | Heilman et al. | May 2008 | A1 |
20080126352 | Case | May 2008 | A1 |
20080126665 | Burr et al. | May 2008 | A1 |
20080143482 | Shoarinejad et al. | Jun 2008 | A1 |
20080174766 | Haaslahti et al. | Jul 2008 | A1 |
20080182592 | Cha et al. | Jul 2008 | A1 |
20080209443 | Suzuki | Aug 2008 | A1 |
20080249641 | Enver et al. | Oct 2008 | A1 |
20080274766 | Pratt et al. | Nov 2008 | A1 |
20080275971 | Pretlove et al. | Nov 2008 | A1 |
20080288321 | Dillon et al. | Nov 2008 | A1 |
20080297513 | Greenhill et al. | Dec 2008 | A1 |
20080301123 | Schneider et al. | Dec 2008 | A1 |
20090048853 | Hall | Feb 2009 | A1 |
20090049073 | Cho | Feb 2009 | A1 |
20090065578 | Peterson et al. | Mar 2009 | A1 |
20090070337 | Romem et al. | Mar 2009 | A1 |
20090070589 | Nayak et al. | Mar 2009 | A1 |
20090089233 | Gach et al. | Apr 2009 | A1 |
20090089359 | Siorek et al. | Apr 2009 | A1 |
20090089709 | Baier et al. | Apr 2009 | A1 |
20090094531 | Danieli et al. | Apr 2009 | A1 |
20090097502 | Yamamoto | Apr 2009 | A1 |
20090112335 | Mehta et al. | Apr 2009 | A1 |
20090112532 | Foslien et al. | Apr 2009 | A1 |
20090210386 | Cahill | Aug 2009 | A1 |
20090210802 | Hawkins et al. | Aug 2009 | A1 |
20090210814 | Agrusa et al. | Aug 2009 | A1 |
20090216341 | Enkerud et al. | Aug 2009 | A1 |
20090249237 | Jundt et al. | Oct 2009 | A1 |
20090284383 | Wiles et al. | Nov 2009 | A1 |
20090294174 | Harmer et al. | Dec 2009 | A1 |
20090300535 | Skourup et al. | Dec 2009 | A1 |
20090319058 | Rovaglio et al. | Dec 2009 | A1 |
20090325603 | Van Os et al. | Dec 2009 | A1 |
20090327014 | Labedz et al. | Dec 2009 | A1 |
20100036779 | Sadeh-Koniecpol et al. | Feb 2010 | A1 |
20100069008 | Oshima et al. | Mar 2010 | A1 |
20100076642 | Hoffberg et al. | Mar 2010 | A1 |
20100082132 | Marruchella et al. | Apr 2010 | A1 |
20100082158 | Lakomiak et al. | Apr 2010 | A1 |
20100106282 | Mackelprang et al. | Apr 2010 | A1 |
20100127821 | Jones et al. | May 2010 | A1 |
20100127824 | Moschl et al. | May 2010 | A1 |
20100145476 | Junk et al. | Jun 2010 | A1 |
20100169785 | Jesudason | Jul 2010 | A1 |
20100185857 | Neitzel et al. | Jul 2010 | A1 |
20100190442 | Citrano, III et al. | Jul 2010 | A1 |
20100192122 | Esfahan et al. | Jul 2010 | A1 |
20100222899 | Blevins et al. | Sep 2010 | A1 |
20100262929 | Avery | Oct 2010 | A1 |
20100275135 | Dunton et al. | Oct 2010 | A1 |
20100286798 | Keyes et al. | Nov 2010 | A1 |
20100290351 | Toepke et al. | Nov 2010 | A1 |
20100290359 | Dewey et al. | Nov 2010 | A1 |
20100293019 | Keyes et al. | Nov 2010 | A1 |
20100293564 | Gould et al. | Nov 2010 | A1 |
20100305736 | Arduini | Dec 2010 | A1 |
20100318934 | Blevins et al. | Dec 2010 | A1 |
20110022193 | Panaitescu | Jan 2011 | A1 |
20110046754 | Bromley et al. | Feb 2011 | A1 |
20110071869 | O'Brien et al. | Mar 2011 | A1 |
20110072338 | Caldwell | Mar 2011 | A1 |
20110098918 | Siliski et al. | Apr 2011 | A1 |
20110115816 | Brackney | May 2011 | A1 |
20110130848 | Tegnell et al. | Jun 2011 | A1 |
20110140864 | Bucci | Jun 2011 | A1 |
20110144777 | Firkins et al. | Jun 2011 | A1 |
20110191277 | Ag ndez Dominguez et al. | Aug 2011 | A1 |
20110238189 | Butera et al. | Sep 2011 | A1 |
20110258138 | Kulkarni et al. | Oct 2011 | A1 |
20110276896 | Zambetti et al. | Nov 2011 | A1 |
20110276908 | O'Riordan | Nov 2011 | A1 |
20110279323 | Hung et al. | Nov 2011 | A1 |
20110282793 | Mercuri et al. | Nov 2011 | A1 |
20110295722 | Reisman | Dec 2011 | A1 |
20120004743 | Anne et al. | Jan 2012 | A1 |
20120005270 | Harding et al. | Jan 2012 | A1 |
20120010758 | Francino et al. | Jan 2012 | A1 |
20120011180 | Kavaklioglu | Jan 2012 | A1 |
20120011511 | Horvitz et al. | Jan 2012 | A1 |
20120029661 | Jones et al. | Feb 2012 | A1 |
20120038458 | Toepke et al. | Feb 2012 | A1 |
20120040698 | Ferguson et al. | Feb 2012 | A1 |
20120078869 | Bellville et al. | Mar 2012 | A1 |
20120095574 | Greenlee | Apr 2012 | A1 |
20120147862 | Poojary et al. | Jun 2012 | A1 |
20120163521 | Kirrmann et al. | Jun 2012 | A1 |
20120176491 | Garin et al. | Jul 2012 | A1 |
20120203728 | Levine | Aug 2012 | A1 |
20120226985 | Chervets et al. | Sep 2012 | A1 |
20120230309 | Junk | Sep 2012 | A1 |
20120239164 | Smith et al. | Sep 2012 | A1 |
20120249588 | Tison et al. | Oct 2012 | A1 |
20120259436 | Resurreccion et al. | Oct 2012 | A1 |
20120271962 | Ivanov et al. | Oct 2012 | A1 |
20120290795 | Dowlatkhah | Nov 2012 | A1 |
20120331541 | Hamilton, II et al. | Dec 2012 | A1 |
20130006696 | Louie et al. | Jan 2013 | A1 |
20130007223 | Luby et al. | Jan 2013 | A1 |
20130013523 | Herrera Campos | Jan 2013 | A1 |
20130029686 | Moshfeghi | Jan 2013 | A1 |
20130041479 | Zhang et al. | Feb 2013 | A1 |
20130060354 | Choi et al. | Mar 2013 | A1 |
20130086591 | Haven | Apr 2013 | A1 |
20130095849 | Pakzad | Apr 2013 | A1 |
20130120449 | Ihara et al. | May 2013 | A1 |
20130127980 | Haddick et al. | May 2013 | A1 |
20130144404 | Godwin et al. | Jun 2013 | A1 |
20130144405 | Lo | Jun 2013 | A1 |
20130144605 | Brager et al. | Jun 2013 | A1 |
20130151563 | Addepalli et al. | Jun 2013 | A1 |
20130159200 | Paul et al. | Jun 2013 | A1 |
20130169526 | Gai et al. | Jul 2013 | A1 |
20130184847 | Fruh et al. | Jul 2013 | A1 |
20130197954 | Yankelevich et al. | Aug 2013 | A1 |
20130211555 | Lawson et al. | Aug 2013 | A1 |
20130212129 | Lawson et al. | Aug 2013 | A1 |
20130214902 | Pineau et al. | Aug 2013 | A1 |
20130217417 | Mohideen et al. | Aug 2013 | A1 |
20130231947 | Shusterman | Sep 2013 | A1 |
20130257627 | Rafael | Oct 2013 | A1 |
20130265857 | Foulds et al. | Oct 2013 | A1 |
20130282150 | Panther et al. | Oct 2013 | A1 |
20130318536 | Fletcher et al. | Nov 2013 | A1 |
20140006338 | Watson et al. | Jan 2014 | A1 |
20140015672 | Ponce | Jan 2014 | A1 |
20140039648 | Boult et al. | Feb 2014 | A1 |
20140067800 | Sharma | Mar 2014 | A1 |
20140079297 | Tadayon | Mar 2014 | A1 |
20140089504 | Scholz et al. | Mar 2014 | A1 |
20140108985 | Scott et al. | Apr 2014 | A1 |
20140122806 | Lin et al. | May 2014 | A1 |
20140123115 | Peretz | May 2014 | A1 |
20140123276 | Bush et al. | May 2014 | A1 |
20140136652 | Narayanaswami et al. | May 2014 | A1 |
20140156032 | Jenkins et al. | Jun 2014 | A1 |
20140164603 | Castel | Jun 2014 | A1 |
20140172961 | Clemmer et al. | Jun 2014 | A1 |
20140180671 | Osipova | Jun 2014 | A1 |
20140180970 | Hettenkofer et al. | Jun 2014 | A1 |
20140189520 | Crepps et al. | Jul 2014 | A1 |
20140201244 | Zhou | Jul 2014 | A1 |
20140232843 | Campbell | Aug 2014 | A1 |
20140250153 | Nixon et al. | Sep 2014 | A1 |
20140267599 | Drouin et al. | Sep 2014 | A1 |
20140273847 | Nixon et al. | Sep 2014 | A1 |
20140274123 | Nixon et al. | Sep 2014 | A1 |
20140277593 | Nixon et al. | Sep 2014 | A1 |
20140277594 | Nixon et al. | Sep 2014 | A1 |
20140277595 | Nixon et al. | Sep 2014 | A1 |
20140277596 | Nixon et al. | Sep 2014 | A1 |
20140277604 | Nixon et al. | Sep 2014 | A1 |
20140277605 | Nixon et al. | Sep 2014 | A1 |
20140277607 | Nixon et al. | Sep 2014 | A1 |
20140277615 | Nixon et al. | Sep 2014 | A1 |
20140277616 | Nixon et al. | Sep 2014 | A1 |
20140277617 | Nixon et al. | Sep 2014 | A1 |
20140277618 | Nixon et al. | Sep 2014 | A1 |
20140277656 | Nixon et al. | Sep 2014 | A1 |
20140278312 | Nixon et al. | Sep 2014 | A1 |
20140280497 | Nixon et al. | Sep 2014 | A1 |
20140280678 | Nixon et al. | Sep 2014 | A1 |
20140282015 | Nixon et al. | Sep 2014 | A1 |
20140282227 | Nixon et al. | Sep 2014 | A1 |
20140282257 | Nixon et al. | Sep 2014 | A1 |
20140297225 | Petroski et al. | Oct 2014 | A1 |
20140316579 | Taylor et al. | Oct 2014 | A1 |
20140358256 | Billi et al. | Dec 2014 | A1 |
20140359552 | Misra et al. | Dec 2014 | A1 |
20140372378 | Long et al. | Dec 2014 | A1 |
20140372561 | Hisano | Dec 2014 | A1 |
20140379296 | Nathan et al. | Dec 2014 | A1 |
20150024710 | Becker et al. | Jan 2015 | A1 |
20150067163 | Bahnsen et al. | Mar 2015 | A1 |
20150106578 | Warfield et al. | Apr 2015 | A1 |
20150172872 | Alsehly et al. | Jun 2015 | A1 |
20150177718 | Vartiainen et al. | Jun 2015 | A1 |
20150212679 | Liu | Jul 2015 | A1 |
20150220080 | Nixon et al. | Aug 2015 | A1 |
20150222731 | Shinohara et al. | Aug 2015 | A1 |
20150246852 | Chen et al. | Sep 2015 | A1 |
20150254330 | Chan | Sep 2015 | A1 |
20150261215 | Blevins et al. | Sep 2015 | A1 |
20150277399 | Maturana et al. | Oct 2015 | A1 |
20150278397 | Hendrickson et al. | Oct 2015 | A1 |
20150296324 | Garaas et al. | Oct 2015 | A1 |
20150312721 | Singh et al. | Oct 2015 | A1 |
20150332188 | Yankelevich et al. | Nov 2015 | A1 |
20160098021 | Zornio et al. | Apr 2016 | A1 |
20160098037 | Zornio et al. | Apr 2016 | A1 |
20160098388 | Blevins et al. | Apr 2016 | A1 |
20160098647 | Nixon et al. | Apr 2016 | A1 |
20160132046 | Beoughter et al. | May 2016 | A1 |
20160261482 | Mixer et al. | Sep 2016 | A1 |
20160327942 | Nixon et al. | Nov 2016 | A1 |
20170102678 | Nixon et al. | Apr 2017 | A1 |
20170102693 | Kidd et al. | Apr 2017 | A1 |
20170102694 | Enver et al. | Apr 2017 | A1 |
20170102696 | Bell et al. | Apr 2017 | A1 |
20170103103 | Nixon et al. | Apr 2017 | A1 |
20170115648 | Nixon et al. | Apr 2017 | A1 |
20170154395 | Podgurny et al. | Jun 2017 | A1 |
20170199843 | Nixon et al. | Jul 2017 | A1 |
20170235298 | Nixon et al. | Aug 2017 | A1 |
20170236067 | Tjiong | Aug 2017 | A1 |
20170238055 | Chang | Aug 2017 | A1 |
20170255826 | Chang | Sep 2017 | A1 |
20170255827 | Chang | Sep 2017 | A1 |
20170255828 | Chang | Sep 2017 | A1 |
20170255829 | Chang | Sep 2017 | A1 |
20180151037 | Morgenthau et al. | May 2018 | A1 |
Number | Date | Country |
---|---|---|
2010257310 | Jul 2012 | AU |
1409179 | Apr 2003 | CN |
1409232 | Apr 2003 | CN |
1537258 | Oct 2004 | CN |
1589423 | Mar 2005 | CN |
1757002 | Apr 2006 | CN |
1804744 | Jul 2006 | CN |
1805040 | Jul 2006 | CN |
1826565 | Aug 2006 | CN |
1864156 | Nov 2006 | CN |
1980194 | Jun 2007 | CN |
101097136 | Jan 2008 | CN |
101169799 | Apr 2008 | CN |
101187869 | May 2008 | CN |
101387882 | Mar 2009 | CN |
101449259 | Jun 2009 | CN |
201374004 | Dec 2009 | CN |
101713985 | May 2010 | CN |
101788820 | Jul 2010 | CN |
101802736 | Aug 2010 | CN |
101828195 | Sep 2010 | CN |
101867566 | Oct 2010 | CN |
102063097 | May 2011 | CN |
102124432 | Jul 2011 | CN |
102169182 | Aug 2011 | CN |
102175174 | Sep 2011 | CN |
102184489 | Sep 2011 | CN |
102200993 | Sep 2011 | CN |
102213959 | Oct 2011 | CN |
102239452 | Nov 2011 | CN |
102243315 | Nov 2011 | CN |
102278987 | Dec 2011 | CN |
202101268 | Jan 2012 | CN |
102349031 | Feb 2012 | CN |
102375453 | Mar 2012 | CN |
102378989 | Mar 2012 | CN |
102402215 | Apr 2012 | CN |
102436205 | May 2012 | CN |
102494630 | Jun 2012 | CN |
102494683 | Jun 2012 | CN |
102637027 | Aug 2012 | CN |
102640156 | Aug 2012 | CN |
102707689 | Oct 2012 | CN |
102710861 | Oct 2012 | CN |
102801779 | Nov 2012 | CN |
102867237 | Jan 2013 | CN |
103106188 | May 2013 | CN |
103403686 | Nov 2013 | CN |
103576638 | Feb 2014 | CN |
104035392 | Sep 2014 | CN |
104049575 | Sep 2014 | CN |
19882113 | Jan 2000 | DE |
19882117 | Jan 2000 | DE |
0 308 390 | Mar 1989 | EP |
0 335 957 | Oct 1989 | EP |
1 344 291 | Sep 2003 | EP |
1 414 215 | Apr 2004 | EP |
1 564 647 | Aug 2005 | EP |
1 912 376 | Apr 2008 | EP |
2 003 813 | Dec 2008 | EP |
2 112 614 | Oct 2009 | EP |
2 180 441 | Apr 2010 | EP |
2 469 475 | Jun 2012 | EP |
1 344 291 | Aug 2012 | EP |
2 685 329 | Jan 2014 | EP |
2 704 401 | Mar 2014 | EP |
2 746 884 | Jun 2014 | EP |
2 801 939 | Nov 2014 | EP |
2 966 625 | Apr 2012 | FR |
2 336 977 | Nov 1999 | GB |
2 336 923 | Jun 2002 | GB |
2 403 028 | Dec 2004 | GB |
2 453 426 | Apr 2009 | GB |
2 512 984 | Oct 2014 | GB |
2 512 997 | Oct 2014 | GB |
2 532 849 | Jun 2016 | GB |
2 534 628 | Aug 2016 | GB |
2 537 457 | Oct 2016 | GB |
64-017105 | Jan 1989 | JP |
01-291303 | Nov 1989 | JP |
05-073131 | Mar 1993 | JP |
05-142033 | Jun 1993 | JP |
05-187973 | Jul 1993 | JP |
06-052145 | Feb 1994 | JP |
08-234951 | Sep 1996 | JP |
09-330861 | Dec 1997 | JP |
10-116113 | May 1998 | JP |
10-326111 | Dec 1998 | JP |
11-327628 | Nov 1999 | JP |
2000-214914 | Aug 2000 | JP |
2001-512593 | Aug 2001 | JP |
2001-265821 | Sep 2001 | JP |
2002-010489 | Jan 2002 | JP |
2002-024423 | Jan 2002 | JP |
2002-99325 | Apr 2002 | JP |
2003-295944 | Oct 2003 | JP |
2003-337794 | Nov 2003 | JP |
2004-030492 | Jan 2004 | JP |
2004-102765 | Apr 2004 | JP |
2004-171127 | Jun 2004 | JP |
2004-199624 | Jul 2004 | JP |
2004-227561 | Aug 2004 | JP |
2004-348582 | Dec 2004 | JP |
2005-107758 | Apr 2005 | JP |
2005-216137 | Aug 2005 | JP |
2005-242830 | Sep 2005 | JP |
2005-332093 | Dec 2005 | JP |
2006-172462 | Jun 2006 | JP |
2006-221376 | Aug 2006 | JP |
2006-527426 | Nov 2006 | JP |
2007-137563 | Jun 2007 | JP |
2007-148938 | Jun 2007 | JP |
2007-207065 | Aug 2007 | JP |
2007-242000 | Sep 2007 | JP |
2007-286798 | Nov 2007 | JP |
2007-536631 | Dec 2007 | JP |
2007-536648 | Dec 2007 | JP |
2008-065821 | Mar 2008 | JP |
2008-158971 | Jul 2008 | JP |
2008-305419 | Dec 2008 | JP |
2009-064451 | Mar 2009 | JP |
2009-140380 | Jun 2009 | JP |
2009-211522 | Sep 2009 | JP |
2009-251777 | Oct 2009 | JP |
2010-527486 | Aug 2010 | JP |
2011-022920 | Feb 2011 | JP |
2011-034564 | Feb 2011 | JP |
2011-204237 | Oct 2011 | JP |
2011-204238 | Oct 2011 | JP |
2012-048762 | Mar 2012 | JP |
2012-069118 | Apr 2012 | JP |
2012-084162 | Apr 2012 | JP |
4-934482 | May 2012 | JP |
2012-215547 | Nov 2012 | JP |
2012-527059 | Nov 2012 | JP |
2012252604 | Dec 2012 | JP |
2014-116027 | Jun 2014 | JP |
WO-0250971 | Jun 2002 | WO |
WO-03073688 | Sep 2003 | WO |
WO-2003073688 | Sep 2003 | WO |
WO-2005083533 | Sep 2005 | WO |
WO-2005109123 | Nov 2005 | WO |
WO-2008042786 | Apr 2008 | WO |
WO-2009021900 | Feb 2009 | WO |
WO-2009046095 | Apr 2009 | WO |
WO-2011120625 | Oct 2011 | WO |
WO-2012016012 | Feb 2012 | WO |
WO-2012022381 | Feb 2012 | WO |
WO-2012096877 | Jul 2012 | WO |
WO-2012129400 | Sep 2012 | WO |
WO-2014005073 | Jan 2014 | WO |
WO-2014145801 | Sep 2014 | WO |
WO-2015138706 | Sep 2015 | WO |
WO-2016057365 | Apr 2016 | WO |
Entry |
---|
Woo, “Intel Drops a Big Data Shocker”, downloaded from the Internet at: <http://forbes.com/sites/bwoo/2013/02/27/intel-drops-a-big-data-shocker/?partner=ya> dated Feb. 27, 2013. |
U.S. Appl. No. 14/212,411, entitled “Determining Associations and Alignments of Process Elements and Measurements in a Process”, filed Mar. 14, 2014, 79 pages. |
“Control Loop Foundation—Batch and Continuous Processes”, by Terrence Blevins and Mark Nixon, International Society of Automation, 2011, Chapter 7. |
U.S. Appl. No. 14/174,413, entitled “Collecting and Delivering Data to a Big Data Machine in a Process Control System”, filed Feb. 6, 2014, 61 pages. |
U.S. Appl. No. 13/784,041, entitled “Big Data in Process Control Systems”, filed Mar. 4, 2013, 65 pages. |
Search Report for Application No. GB1402311.3, dated Aug. 6, 2014. |
Search Report for Application No. GB1403251.0, dated Aug. 8, 2014. |
Search Report for Application No. GB1513617.9, dated Jan. 21, 2016. |
International Search Report and Written Opinion for Application No. PCT/US2015,053931, dated Jan. 26, 2016. |
Krumeich et al., “Big Data Analytics for Predictive Manufacturing Control—A Case Study from Process Industry,” IEEE International Congress on Big Data, pp. 530-537 (2014). |
“IoT and Big Data Combine Forces,” (2013). Retrieved from the Internet at: URL:http://wiki.advantech.com/images/7/73/iot2013_whitepaper.pdf. |
Bryner, “Smart Manufacturing: The Next Revolution,” Chemical Engineering Process (2012). Retrieved from the Internet at: URL:http://www.aiche.org/sites/default/files/cep/20121004a.pdf. |
Building Smarter Manufacturing with the Internet of Things (IoT), (2014). Retrieved from the Internet at: URL:http://www.cisco.com/web/solutions/trends/iot/iot_in_manufacturing_january.pdf. |
International Search Report and Written Opinion for Application No. PCT/US2015/020148, dated Jun. 18, 2015. |
Smalley, “GE Invests in Project to Embed Predictive Analytics in Industrial Internet,” (2013). Retrieved from the Internet at: URL:http://data-informed.com/ge-invents-in-project-to-embed-predictive-analytics-in-industrial-internet/. |
“ANSI/ISA-S5.4-1991 American National Standard Instrument Loop Diagrams” by Instrument Society of America, 1986, 22 pages. |
Examination Report for Application No. GB1017192.4, dated May 28, 2014. |
Examination Report for Application No. GB1017192.4, dated Sep. 5, 2013. |
First Office Action for Chinese Application No. 201010589029.X, dated Dec. 10, 2013. |
Notice of Reasons for Rejection for Japanese Application No. 2010-229513, dated Jul. 29, 2014. |
Search Report for Application No. GB1017192.4, dated Feb. 15, 2011. |
Search Report for Application No. GB1403407.8, dated Aug. 8, 2014. |
Search Report for Application No. GB1403408.6, dated Aug. 8, 2014. |
Search Report for Application No. GB1403471.4, dated Sep. 9, 2014. |
Search Report for Application No. GB1403472.2, dated Aug. 22, 2014. |
Search Report for Application No. GB1403474.8, dated Aug. 26, 2014. |
Search Report for Application No. GB1403475.5, dated Sep. 3, 2014. |
Search Report for Application No. GB1403476.3, dated Aug. 27, 2014. |
Search Report for Application No. GB1403477.1, dated Aug. 28, 2014. |
Search Report for Application No. GB1403478.9, dated Aug. 21, 2014. |
Search Report for Application No. GB1403480.5, dated Aug. 28, 2014. |
Search Report for Application No. GB1403615.6, dated Aug. 18, 2014. |
Search Report for Application No. GB1403616.4, dated Sep. 1, 2014. |
U.S. Appl. No. 14/212,411, filed Mar. 14, 2014, “Determining Associations and Alignments of Process Elements and Measurements in a Process”. |
U.S. Appl. No. 14/506,863, filed Oct. 6, 2014, “Streaming Data for Analytics in Process Control Systems”. |
U.S. Appl. No. 14/507,252, filed Oct. 6, 2014, “Automatic Signal Processing-Based Learning in a Process Plant”. |
U.S. Appl. No. 62/060,408, filed Oct. 6, 2014, “Data Pipeline for Process Control System Analytics”. |
Communication Relating to the Results of the Partial International Search, dated Jul. 11, 2014. |
International Search Report and Written Opinion for Application No. PCT/US2014/030627, dated Sep. 11, 2014. |
U.S. Appl. No. 14/028,785, filed Sep. 17, 2013. |
U.S. Appl. No. 14/028,897, filed Sep. 17, 2013. |
U.S. Appl. No. 14/028,913, filed Sep. 17, 2013. |
U.S. Appl. No. 14/028,921, filed Sep. 17, 2013. |
U.S. Appl. No. 14/028,923, filed Sep. 17, 2013. |
U.S. Appl. No. 14/028,964, filed Sep. 17, 2013. |
Bassat et al., “Workflow Management Combined with Diagnostic and Repair Expert System Tools for Maintenance Operations,” IEEE, pp. 367-375 (1993). |
Search Report for Application No. GB1501042.4, dated Feb. 2, 2016. |
Search Report for Application No. GB1517034.3, dated May 26, 2016. |
Search Report for Application No. GB1517038.4, dated Mar. 22, 2016. |
Examination Report for Application No. EP 14724871.0, dated Aug. 17, 2016. |
Adrian et al., “Model Predictive Control of Integrated Unit Operations Control of a Divided Wall Column,” Chemical Engineering and Processing: Process Information, 43(3):347-355 (2004). |
Daniel et al., “Conceptual Design of Reactive Dividing Wall Columns,” Symposium Series No. 152, pp. 364-372 (2006). |
Dejanovic et al., “Conceptual Design and Comparison of Four-Products Dividing Wall Columns for Separation of a Multicomponent Aromatics Mixture,” Distillation Absorption, pp. 85-90 (2010). |
Dongargaonkar et al., “PLC Based Ignition System,” Conference Records of the 1999 IEEE Industry Application Conference, 1380-1387 (1999). |
Hiller et al., “Multi Objective Optimisation for an Economical Dividing Wall Column Design,” Distillation Absorption, pp. 67-72 (2010). |
International Preliminary Report on Patentability for Application No. PCT/US2014/030627, dated Sep. 15, 2015. |
International Preliminary Report on Patentability for Application No. PCT/US2015/020148, dated Sep. 14, 2016. |
Kiss et al., “A control Perspective on Process Intensification in Dividing-Wall Columns,” Chemical Engineering and Processing: Process Intensification, 50:281-292 (2011). |
Pendergast et al., “Consider Dividing Wall Columns,” Chemical Processing (2008). Retrieved from the Internet at: URL:http://www.chemicalprocessing.com/articles/2008/245/?show=all. |
Sander et al., “Methyl Acetate Hydrolysis in a Reactive Divided Wall Column,” Symposium Series No. 152, pp. 353-363 (2006). |
Schultz et al., “Reduce Costs with Dividing-Wall Columns,” Reactions and Separations, pp. 64-71 (2002). |
Shah et al., “Multicomponent Distillation Configurations with Large Energy Savings,” Distillation Absorption, pp. 61-66 (2010). |
Thotla et al., “Cyclohexanol Production from Cyclohexene in a Reactive Divided Wall Column: A Feasibility Study,” Distillation Absorption, pp. 319-324 (2010). |
Tututi-Avila et al., “Analysis of Multi-Loop Control Structures of Dividing-Wall Distillation Columns Using a Fundamental Model,” Processes, 2:180-199 (2014). |
U.S. Office Action for U.S. Appl. No. 13/784,041 dated Apr. 6, 2015. |
U.S. Office Action for U.S. Appl. No. 13/784,041, dated Feb. 26, 2016. |
U.S. Office Action for U.S. Appl. No. 13/784,041, dated Oct. 15, 2015. |
Hu et al., “Toward Scalable Systems for Big Data Analytics: A Technology Tutorial,” IEEE, 2:652-687 (2014). |
Lee et al., “Recent Advances and Trends in Predictive Manufacturing Systems in Big Data Environment,” Manufacturing Letters, 1(1):38-41 (2013). |
Mandavi et al., “Development of a Simulation-Based Decision Support System for Controlling Stochastic Flexible Job Shop Manufacturing Systems,” Simulation Modeling Practice and Theory, 18:768-786 (2010). |
Mezmaz et al., “A Parallel Bi-Objective Hybrid Metaheuristic for Energy-Aware Scheduling for Cloud Computing Systems,” Journal of Parallel and Distributed Computing, Elsevier (2011). |
Notification of First Office Action for Chinese Application No. 201480014734.3, dated Apr. 19, 2017. |
Razik et al., “The Remote Surveillance Device in Monitoring and Diagnosis of Induction Motor by Using a PDA,” IEEE (2007). |
Search Report for Application No. GB1617019.3, dated Feb. 27, 2017. |
Siltanen et al., “Augmented Reality for Plant Lifecycle Management,” IEEE (2007). |
Xu, “From Cloud Computing to Cloud Manufacturing,” Robotics and Computer-Integrated Manufacturing 28:75-86 (2012). |
Aouada et al., “Source Detection and Separation in Power Plant Process Monitoring: Application of the Bootstrap,” IEEE International Conference on Acoustics Speech and Signal Processing Proceedings (2006). |
Bruzzone et al., “Different Modeling and Simulation Approaches Applied to Industrial Process Plants,” Proceedings of the Emerging M&S Applications in Industry & Academia/Modeling and Humanities Symposium (2013). |
First Office Action for Chinese Application No. 201410097675.2, dated May 10, 2017. |
International Preliminary Report on Patentability for Application No. PCT/US2015/053931, dated Apr. 11, 2017. |
Notification of First Office Action for Chinese Application No. 201410097875.8, dated Jul. 7, 2017. |
Sailer et al., “Attestation-Based Policy Enforcement for Remote Access,” Proceedings of the 11th ACM Conference on Computer and Communications Security (2004). |
Search Report for Application No. GB1617020.1, dated Apr. 13, 2017. |
Search Report for Application No. GB1617021.9, dated Apr. 5, 2017. |
Search Report for Application No. GB1617022.7, dated Apr. 18, 2017. |
Search Report for Application No. GB1617023.5, dated Apr. 7, 2017. |
Search Report for Application No. GB16702014.0, dated Aug. 3, 2017. |
Sunindyo et al., “An Event-Based Empirical Process Analysis Framework,” ESEM (2010). |
Notice of Reasons for Rejection for Japanese Application No. 2014-041785, dated Dec. 5, 2017. |
Notice of Reasons for Rejection for Japanese Application No. 2014-041785, dated Nov. 30, 2017. |
Notice of Reasons for Rejection for Japanese Application No. 2014-048410, dated Dec. 29, 2017. |
Notice of Reasons for Rejection for Japanese Application No. 2014-048411, dated Dec. 5, 2017. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049918, dated Dec. 12, 2017. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049919, dated Nov. 29, 2017. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051114, dated Dec. 28, 2017. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051596, dated Jan. 9, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051597, dated Jan. 9, 2018. |
Extended European Search Report for Application No. 17157505.3, dated Jun. 30, 2017. |
First Office Action for Chinese Application No. 201410080524.6, dated Sep. 13, 2017. |
First Office Action for Chinese Application No. 201410088828.7, dated Aug. 1, 2017. |
First Office Action for Chinese Application No. 201410097623.5, dated Sep. 26, 2017. |
First Office Action for Chinese Application No. 201410097873.9, dated Aug. 9, 2017. |
First Office Action for Chinese Application No. 201410097874.3, dated Aug. 18, 2017. |
First Office Action for Chinese Application No. 201410097921.4, dated Oct. 10, 2017. |
First Office Action for Chinese Application No. 201410097922.9, dated Aug. 18, 2017. |
First Office Action for Chinese Application No. 201410097923.3, dated Aug. 28, 2017. |
First Office Action for Chinese Application No. 201410098326.2, dated Jul. 27, 2017. |
First Office Action for Chinese Application No. 201410098327.7, dated Jul. 26, 2017. |
First Office Action for Chinese Application No. 201410098982.2, dated Aug. 9, 2017. |
First Office Action for Chinese Application No. 201410099103.8, dated Aug. 9, 2017. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051599, dated Nov. 28, 2017. |
Notification of First Office Action for Chinese Application No. 201410099068.X, dated Sep. 15, 2017. |
Decision of Refusal for Japanese Application No. 2014-048410, dated May 29, 2018. |
Decision of Rejection for Chinese Application No. 201410097675.2, dated Jul. 2, 2018. |
Examination Report for Application No. EP 14724871.0, dated Aug. 10, 2018. |
Final Rejection for Japanese Application No. 2014-048410, dated May 29, 2018. |
First Office Action for Chinese Application No. 201410097872.4, dated Aug. 23, 2017. |
First Office Action for Chinese Application No. 201510049715.0, dated May 4, 2018. |
First Office Action for Chinese Application No. 201510113223.3, dated Jul. 4, 2018. |
First Office Action for Chinese Application No. 201580014241.4, dated Jun. 22, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-048411, dated Jul. 31, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-048412, dated Feb. 27, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049915, dated Mar. 13, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049916, dated Feb. 27, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049917, dated Mar. 6, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049918, dated Apr. 10, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049919, dated Jul. 31, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049920, dated Feb. 20, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049920, dated Jun. 5, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051595, dated Jan. 16, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051595, dated May 29, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051596, dated Jan. 16, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051596, dated May 29, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051598, dated Mar. 13, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2016-503431, dated Apr. 3, 2018. |
Second Office Action for Chinese Application No. 201410088828.7, dated Apr. 27, 2018. |
Second Office Action for Chinese Application No. 201410097623.5, dated Jun. 26, 2018. |
Second Office Action for Chinese Application No. 201410097675.2, dated Feb. 11, 2018. |
Second Office Action for Chinese Application No. 201410097872.4 dated Jul. 12, 2018. |
Second Office Action for Chinese Application No. 201410097873.9, dated May 15, 2018. |
Second Office Action for Chinese Application No. 201410097875.8, dated Jun. 6, 2018. |
Second Office Action for Chinese Application No. 201410097921.4, dated Jul. 5, 2018. |
Second Office Action for Chinese Application No. 201410097922.9, dated Jan. 9, 2018. |
Second Office Action for Chinese Application No. 201410098326.2, dated Jun. 19, 2018. |
Second Office Action for Chinese Application No. 201410098327.7, dated Feb. 27, 2018. |
Second Office Action for Chinese Application No. 201410098982.2, dated Jun. 11, 2018. |
Second Office Action for Chinese Application No. 201410099068.X, dated Jun. 14, 2018. |
Second Office Action for Chinese Application No. 201410099103.8, dated Jun. 5, 2018. |
Third Office Action for Chinese Application No. 201410097922.9, dated Aug. 3, 2018. |
Decision of Refusal for Japanese Application No. 2014-049918, dated Aug. 21, 2018. |
Decision of Refusal for Japanese Application No. 2014-051595, dated Sep. 11, 2018. |
Decision of Refusal for Japanese Application No. 2014-051596, dated Oct. 23, 2018. |
Examination Report for Application No. GB1402311.3, dated Sep. 28, 2018. |
Examination Report for Application No. GB14724871.0, dated Oct. 8, 2018. |
Final Rejection for Japanese Application No. 2014-049915, dated Nov. 6, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049916, dated Aug. 28, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049917, dated Dec. 4, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-049920, dated Oct. 23, 2018. |
Notice of Reasons for Rejection for Japanese Application No. 2014-051597, dated Jul. 31, 2018. |
Third Office Action for Chinese Application No. 201410098327.7, dated Sep. 30, 2018. |
Zhu et al., “Localization Optimization Algorithm of Maximum Likelihood Estimation Based on Received Signal Strength,” IEEE 9th International Conference on Communication Software and Networks (ICCSN), pp. 830-834 (2017). |
Number | Date | Country | |
---|---|---|---|
20140277604 A1 | Sep 2014 | US |
Number | Date | Country | |
---|---|---|---|
61783112 | Mar 2013 | US |