Patent Application
20100082131
This disclosure is related to the field of factory automation, and in particular, to the automatic aggregation of industrial automation displays.
Industrial automation environments include automobile manufacturing factories, food processing plants, and microprocessor fabrication facilities. The typical industrial environment includes various machines, such as pumps, motors, and robots. These machines continually produce data that indicates the current status of the machines, such as the machine's pressure, temperature, or speed.
The typical industrial environment also includes a Human-Machine Interface (HMI). The HMI can display a graphical representation of an industrial automation environment, including graphical representations of machines. The HMI also receives and processes operation data from the machines to generate various graphical displays. The graphical displays indicate the current and historical status of the machines. For example, an HMI graphical display might indicate the pressure of a pump, the speed of a motor, or the output of a robot.
A user may remotely operate a communication device to access a communication network of an industrial automation environment. The communication device functions as a remote HMI and retrieves operation data from the machines and graphics data from the HMI over a communication network. Unfortunately, frequent requests for such data from multiple communication devices puts strain on the HMI, the machines, and the network.
A data aggregation system comprises an aggregation server. The aggregation server receives from a Human-Machine Interface (HMI) graphics data comprising a graphical representation of a portion of an industrial automation environment over an enterprise network, receives operation data associated with an operation of the industrial automation environment over the enterprise network, and receives a request for a viewing session from a plurality of communication devices over a communication network. In response to the request, the aggregation server transfers the graphics data over the communication network to the plurality of communication devices. In response to the request, the aggregation server transfers the operation data over the communication network to the plurality of communication devices.
In some examples, the aggregation server is configured to receive the operation data from a machine system.
In some examples, the aggregation server is configured to receive the operation data from the Human-Machine Interface (HMI).
In some examples, the graphics data and the operation data are contained in a single file.
In some examples, the graphics data and the operation data are contained in a single web page.
In some examples, the aggregation server is configured to receive configuration data comprising a configuration of the portion of the industrial automation environment over the enterprise network.
In some examples, one of the plurality of communication devices is a remote Human-Machine Interface (HMI).
Also disclosed herein is a method of operating a data aggregation system wherein the method comprises receiving from a Human-Machine Interface (HMI) graphics data comprising a graphical representation of a portion of an industrial automation environment over an enterprise network, receiving operation data associated with an operation of the industrial automation environment over the enterprise network, receiving a request for a viewing session from a plurality of communication devices over a communication network, in response to the request, transferring the graphics data over the communication network to the plurality of communication devices, and in response to the request, transferring the operation data over the communication network to the plurality of communication devices.
Also disclosed herein is a computer-readable storage medium comprising instructions executable by a processing system for employing a method of operating a data aggregation system wherein the method comprises receiving from a Human-Machine Interface (HMI) graphics data comprising a graphical representation of a portion of an industrial automation environment over an enterprise network, receiving operation data associated with an operation of the industrial automation environment over the enterprise network, receiving a request for a viewing session from a plurality of communication devices over a communication network, in response to the request, transferring the graphics data over the communication network to the plurality of communication devices, and in response to the request, transferring the operation data over the communication network to the plurality of communication devices.
Many aspects of the disclosure can be better understood with reference to the following drawings. The components in the drawings are not necessarily to scale, emphasis instead being placed upon clearly illustrating the principles of the present disclosure. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views. While several embodiments are described in connection with these drawings, the disclosure is not limited to the embodiments disclosed herein. On the contrary, the intent is to cover all alternatives, modifications, and equivalents.
The following description and associated figures teach the best mode of the invention. For the purpose of teaching inventive principles, some conventional aspects of the best mode may be simplified or omitted. The following claims specify the scope of the invention. Note that some aspects of the best mode may not fall within the scope of the invention as specified by the claims. Thus, those skilled in the art will appreciate variations from the best mode that fall within the scope of the invention. Those skilled in the art will appreciate that the features described below can be combined in various ways to form multiple variations of the invention. As a result, the invention is not limited to the specific examples described below, but only by the claims and their equivalents.
Described herein is a method of operating a data aggregation system. An aggregation server is placed in communication with a Human-Machine Interface (HMI) system and machine systems to automatically cache data generated by such systems. Requests for operation data and graphics data from remote communication devices are serviced by the aggregation server. Thus, by utilizing the aggregation server, the HMI and machine systems are not required to provide such data to communication devices on demand. Additionally, strain on enterprise network resources is reduced through use of the aggregation server.
Industrial automation environment 110 includes machine systems 101-103, HMI system 104, enterprise network 105, and aggregation server 108. Industrial automation environment 110 comprises an automobile manufacturing factory, food processing plant, microprocessor fabrication facility, or some other type of industrial enterprise. Note that aggregation server 108 may not be located at the same physical premises as machine systems 101-103, but may be in communication with HMI system 104 over enterprise network 105 from many miles away.
Machine systems 101-103 comprise pumps, motors, robots, or some other mechanical apparatus, including their associated control systems. A control system comprises, for example, a programmable logic controller (PLC). In addition, machine systems 101-103 comprise other, non-mechanical elements, such as a brew kettle in a brewery, a reserve of coal or other resources, or any other element that may reside in an industrial automation environment 110.
Machine systems 101-103 continually produce operation data over time. The operation data indicates the current status of machine systems 101-103, such as pressure, temperature, speed, or some other status metrics. Machine systems 101-103 are in communication with HMI system 104 and continually transfer the operation data to HMI system 104 over wireless links, metallic links, optical links, or some other communication link, including combinations thereof. In addition, HMI system 104 transfers control instructions to machine systems 101-103.
HMI system 104 comprises computer and communication equipment and software. HMI system 104 displays graphics data comprising a graphical representation of an industrial automation environment 110, including graphical representations of machine systems 101-103. HMI system 104 also continually receives operation data from machine systems 101-103. HMI system 104 may process the operation data to generate various graphical displays indicating the current and historical status of machine systems 101-103. Such graphical displays are a graphical representation of the operation data. For example, an HMI system 104 graphical display might indicate the pressure of a pump, the speed of a motor, the output of a robot, the amount of coal remaining, or some other status metric. HMI system 104 also controls machine systems 101-103. For example, HMI system 104 might turn on a pump, speed-up a motor, stop a robot, boil a brew kettle, or perform some other type of machine control. Examples of HMI systems that could be adapted in accord with this description comprise RSView® or PanelView Plus™ supplied by Rockwell Automation—including combinations thereof.
HMI system 104 comprises a machine interface, a processing system, a storage system, a user interface, a communication interface, and a communication system. The user interface includes a display device. The storage system stores HMI software.
The machine interface comprises communication circuitry and equipment that communicates with machine systems 101-103. The processing system comprises microprocessors or other logic circuitry that retrieves and executes the HMI software. The communication interface comprises communication circuitry and equipment that communicates with aggregation server 108 over enterprise network 105. The user interface comprises a keyboard, mouse, voice recognition interface, touch screen, touch pad, or some other user device. The display device comprises a touch screen, liquid crystal display, cathode ray tube display, or some other graphical display mechanism. The storage system comprises a disk, integrated circuit, flash drive, optical media, or some other memory device. The communication system comprises a bus, local area network, or some other communication apparatus. The above-described components of HMI system 104 may be integrated together or distributed among multiple devices.
The HMI software comprises an application program, firmware, or some other form of machine-readable processing instructions. The HMI software may include an operating system, utilities, drivers, networking, and applications. When executed by the processing system, the HMI software directs HMI system 104 to operate as described herein.
Enterprise network 105 uses the internet protocol, Ethernet, telephony, or some other communication protocol, including combinations thereof. Enterprise network 105 uses wireless links, metallic links, optical links, or some other communication link, including combinations thereof. Enterprise network 105 comprises the Internet, a private network, a telephone network, or some other communication network, including combinations thereof. Enterprise network 105 could be a local area network, wide area network, or some other data network. HMI system 104 communicates with aggregation server 108 over enterprise network 105.
Aggregation server 108 comprises computer and communication equipment and software. Aggregation server 108 continually receives and stores graphics data and operation data from HMI system 104 over enterprise network 105. The graphics data comprises a graphical representation of an industrial automation environment, including graphical representations of machine systems 101-103. Aggregation server 108 receives requests over communication network 115 from communication device 120 for the graphics data and the operation data. Aggregation server 108 sends the graphics data and the operation data over communication network 115 to communication device 120. An example of an aggregation server that could be adapted in accord with this description is a FactoryTalk® ViewPoint server supplied by Rockwell Automation.
Communication network 115 uses the internet protocol, Ethernet, telephony, or some other communication protocol, including combinations thereof. Communication network 115 uses wireless links, metallic links, optical links, or some other communication link, including combinations thereof. Communication network 115 comprises the Internet, a private network, a telephone network, or some other communication network, including combinations thereof. Aggregation server 108 communicates with communication device 120 over communication network 115.
Communication device 120 comprises a telephone, wireless transceiver, computer, digital assistant, Internet appliance, or some other communication apparatus. Communication device 120 receives operation data and graphics data from aggregation server 108. Communication device 120 displays the operation data and graphics data. In addition, communication device 120 may process the operation data to generate graphical representations of the operation data. In one embodiment, communication device 120 comprises a computer with an Internet browser and Microsoft® Silverlight™ software installed thereon.
Communication device 120 comprises a communication interface, processing circuitry, a storage device, a user interface, and a communication system. The user interface includes a display device. The storage device stores communication device software.
The communication interface comprises communication circuitry and equipment that communicates with aggregation server 108 over communication network 115. The processing circuitry comprises microprocessors or other logic circuitry that retrieves and executes the communication device software. The storage device comprises a disk, integrated circuit, flash drive, or some other memory device. The user interface comprises a keyboard, mouse, voice recognition interface, touch screen, or some other user device. The user interface may also include a touch pad, wheel, or some other mechanism that allows a user to input a scroll command. The display device comprises a liquid crystal display, cathode ray tube display, or some other graphical display mechanism. The communication system comprises a bus, communication circuitry, or some other communication apparatus. The above-described components of communication device 120 may be integrated together or distributed among multiple devices.
The communication device software comprises an application program, firmware, or some other form of machine-readable processing instructions. The communication device software may include an operating system, utilities, drivers, networking, and applications. When executed by the processing circuitry, the communication device software directs communication device 120 to operate as described herein.
Communication interface 204 could comprise a network interface, modem, port, transceiver, or some other communication device. Communication interface 204 may be distributed among multiple communication devices. Processing system 201 could comprise a computer microprocessor, logic circuit, or some other processing device. Processing system 201 may be distributed among multiple processing devices. Storage system 202 could comprise a disk, tape, integrated circuit, server, or some other memory device. Storage system 202 may be distributed among multiple memory devices.
Processing system 201 retrieves and executes software 203 from storage system 202. Software 203 may comprise an operating system, utilities, drivers, networking software, and other software typically loaded onto a computer system. Software 203 could comprise an application program, firmware, or some other form of machine-readable processing instructions. When executed by processing system 201, software 203 directs aggregation server 108 to operate as described herein.
Aggregation server 108 receives a request for a viewing session from a plurality of communication devices over a communication network 115 (operation 306). A viewing session comprises receiving from aggregation server 108 either graphics data or operation data, or both, on a remote communication device, such as communication device 120. A viewing session comprises identifying a view of at least an operation of a machine system, such as one of machine systems 101-103.
In response to receiving the request for a viewing session, aggregation server 108 transfers the graphics data over communication network 115 to the plurality of communication devices (operation 308). Also in response to receiving the request for the viewing session, aggregation server 108 transfers the operation data over communication network 115 to the plurality of communication devices (operation 310). In this manner, the plurality of communication devices receive the data requested without ever communicating with HMI system 104 or machine systems 101-103.
At a later point in time (represented by the dashed lines in
HMI system 104 may process the operation data to generate graphical displays that indicate the status of machine systems 101-103. Whenever HMI system 104 generates a graphical display of operation data, the graphical representation of the operation data is automatically sent to aggregation server 108.
A user desires to conveniently view graphics data and operation data from a remote communication device. The user operates communication device 120 to request a viewing session from aggregation server 108. In response to the request for the viewing session, aggregation server 108 transfers the graphics data and the operation data to communication device 120.
At a later point in time, machine systems 101-103 generate new operation data, and transfer the new operation data to HMI system 104. When HMI system 104 receives the new operation data from machine systems 101-103, the newly received operation data is automatically sent to aggregation server 108.
The user operates communication device 120 to request a viewing session from aggregation server 108. In response to the request for the viewing session, aggregation server 108 transfers the new operation data to communication device 120. In this example, the graphics data has not changed since communication device 120 last received the graphics data, so aggregation server 108 does not send graphics data to communication device 120 at this time.
Industrial automation environment 510 includes machine systems 101-103, HMI system 104, enterprise network 105, and aggregation server 108. Industrial automation environment 510 comprises an automobile manufacturing factory, food processing plant, microprocessor fabrication facility, or some other type of industrial enterprise. Note that aggregation server 108 may not be located at the same physical premises as machine systems 101-103, but may be in communication with machine systems 101-103 and HMI system 104 over enterprise network 105 from many miles away.
Machine systems 101-103 continually produce operation data over time. Machine systems 101-103 are in communication with HMI system 104 and continually transfer the operation data to HMI system 104 over wireless links, metallic links, optical links, or some other communication link, including combinations thereof. In addition, machine systems 101-103 are in communication with aggregation server 108 and continually transfer the operation data to aggregation server 108 over enterprise network 105.
Machine systems 101-103 and HMI system 104 communicate with aggregation server 108 over enterprise network 105. Aggregation server 108 continually receives operation data from machine systems 101-103 and HMI system 104 over enterprise network 105.
At a later point in time (represented by the dashed lines in
A user desires to conveniently view graphics data and operation data from a remote communication device. The user operates communication device 120 to request a viewing session from aggregation server 108. In response to the request for the viewing session, aggregation server 108 transfers the graphics data and the operation data to communication device 120.
At a later point in time, machine systems 101-103 generate new operation data. When machine systems 101-103 generate the new operation data, the newly generated operation data is automatically sent to aggregation server 108.
The user operates communication device 120 to request a viewing session from aggregation server 108. In response to the request for the viewing session, aggregation server 108 transfers the new operation data to communication device 120. In this example, the graphics data has not changed since communication device 120 last received the graphics data, so aggregation server 108 does not send graphics data to communication device 120 at this time.
HMI system 104 communicates with aggregation server 108 over enterprise network 105 through firewall 706. Aggregation server 108 communicates with one or more communication devices, such as communication device 120, over a communication network, such as communication network 115.
Firewall 706 is capable of permitting, denying, encrypting, or decrypting all network traffic to and from enterprise network 105 based upon a set of rules and other criteria. Firewall 706 comprises computer and communication equipment and software. Firewall 706 allows aggregation server 108 to access enterprise network 105, which is in communication with HMI system 104. Firewall 706 forces a communication device such as communication device 120 through aggregation server 108, and prevents such a communication device from accessing enterprise network 105 and HMI system 104.
Firewall 706 could also be placed between enterprise network 105 and aggregation server 108 in industrial automation environment 510 of
Firewall 706 comprises a communication interface and a processing system. The processing system includes a storage system. The storage system stores software. The processing system is linked to the communication interface. Firewall 706 could be comprised of a programmed general-purpose computer, although those skilled in the art will appreciate that programmable or special purpose circuitry and equipment may be used.
The communication interface could comprise a network interface, modem, port, transceiver, or some other communication device. The processing system could comprise a computer microprocessor, logic circuit, or some other processing device. The storage system could comprise a disk, integrated circuit, server, or some other memory device. The above-described components of firewall 706 may be integrated together or distributed among multiple devices.
The processing system retrieves and executes the software from the storage system. The software may comprise an operating system, utilities, drivers, networking software, and other software typically loaded onto a computer system. The software could comprise an application program, firmware, or some other form of machine-readable processing instructions. When executed by the processing system, the software directs firewall 706 to operate as described herein.
Advantageously, a user of communication device 120 is able to easily request and receive graphics data and operation data without directly communicating with machine systems 101-103 and HMI system 104. By placing aggregation server 108 in communication with HMI system 104 and machine systems 101-103 to automatically cache data generated by such systems, requests for operation and graphics data from remote communication devices are serviced by aggregation server 108. Thus, by utilizing aggregation server 108, HMI system 104 and machine systems 101-103 are not required to provide such data to communication device 120 on demand. By utilizing firewall 706, communication device 120 is prevented from accessing enterprise network 105. Thus, strain on enterprise network 105 resources is reduced through use of firewall 706 and aggregation server 108.
The above description and associated drawings teach the best mode of the invention. The following claims specify the scope of the invention. Some aspects of the best mode may not fall within the scope of the invention as specified by the claims. Also, while the preceding discussion describes embodiments employed specifically in conjunction with the monitoring and analysis of industrial processes, other applications, such as the mathematical modeling or monitoring of any man-made or naturally-existing system, may benefit from use of the concepts discussed above. Further, those skilled in the art will appreciate that the features described above can be combined in various ways to form multiple variations of the invention. As a result, the invention is not limited to the specific embodiments described above, but only by the following claims and their equivalents.
