This invention relates generally to a method of monitoring equipment over an installed base for improving the design and performance of the equipment/s. More particularly, the invention relates to a method of monitoring equipment/s over an installed base for improving the design and performance of the equipment/s, wherein the equipment/s belong to the same class.
For any manufacturing process, the equipment operational expenses form a significant portion of the total operational expenses. Therefore, optimal performance of the equipment has a direct relation with the cost of the products manufactured by that equipment.
Equipment performance is not constant and unchanging; many factors such as operating environment, conditions, quality and specific characteristics of the utilities, quality of the raw materials etc. cause the performance or efficiency of the equipment to drift from its optimum or design reference levels.
Monitoring a single process or a single instance of equipment does not allow for discovery of the factors that influence the equipment design and performance. Equipment experts (Original Equipment Manufacturers—OEMs) do not currently have access to all of the field data that would influence the equipment design and performance.
As a result of this non-availability of the actual field data from across the installed base, a designer is compelled to compromise and base the equipment design on past experience, assumptions, model-based simulations etc. (instead of on actual field data). Further, OEM field service personnel provide after sales service to end user without having complete data as well.
Conventional methods of obtaining data (of equipment operational conditions, inputs and energy supplied, operations and maintenance procedures applied, applications specific configuration of equipment), on which models are based, are the following:
Major disadvantages of the conventional methods of data collection and analysis include the following:
Equipment design is primarily done on basis of certain assumptions related to
The effects of variances in these assumptions on equipment performance are not available to the equipment manufacturer on continuous basis, using the current available solutions. As a result, currently desired changes in the design of equipment are undertaken only on the basis of field service feedback. However, such feedbacks are based on individual unit observation, summation and interpretations by the team of service people. Further, the effect of many of the variations in relevant parameters cannot be captured accurately by prior art means. Thus they are not comprehensive and result in many iterations before these are stabilized. As such, the changes are costly and are of long cycle. Even if the equipment owner is an expert in the application of equipment to a specific process, but he cannot utilize the field data available to him, as, unlike the equipment manufacturer, he does not design the equipment. Whereas, the equipment manufacturer, who has the design expertise, cannot improve the designing and manufacturing methods, as the field data is not available to him, unlike the equipment owner. Therefore, there is a need that this gap is bridged, and the equipment performance data is provided to the equipment manufacturer fairly continuously, in order to facilitate continuous improvements in the equipment design. The primary necessity for achieving this is having a system of continuous monitoring of the equipment (and further thereto, to record and provide the data to the manufacturer on a continuous basis; to manage the individual equipment etc.). However, the monitoring solution itself has to be efficient in order to ensure that the benefits of monitoring measure favourably against the cost of data acquisition and analysis.
Current equipment management solutions are based on control or process automation, with the following characteristics:
Thus, a single comprehensive solution that maximizes the value of continuously monitoring and real time analysis across different stakeholders is not available. There is, accordingly, a need for a monitoring method that monitors the performance of equipments on a continuous basis, analyzes the data obtained by the monitoring, and provides the same to the various stakeholders on a continuous basis, including the equipment manufacturers, in order to enable continuous design improvements and management of the equipment installed base by predicting and preventing failures and breakdown in the equipment.
The present invention proposes to meet the needs identified in the above description of the related art as well as meeting other needs as stated below.
The principal object of the invention is to fulfil a need to provide a solution that performs ongoing and continuous monitoring of a plurality of equipments for performance and operational parameters, the equipments including those located at multiple geographical locations, in order to provide equipment performance data to the desired stakeholders (including the equipment manufacturer and designer, the service personnel etc.) in order to:
Another object of the invention is to acquire automatic as well as manual data and to transmit the same via multiple modes (thereby ensuring the transmission even if one of the modes fails) through devices that need not be high-end devices.
A method for improving equipment design for equipment installed base is provided, the method comprising the steps of
A method for improving operation, reliability, maintenance and service for equipment installed base is also provided, the method comprising the steps of
A method for improving equipment design for equipment installed base is provided. A method for improving operation, reliability, maintenance and service for equipment installed base is also provided herein below.
The management of the equipment operation (including improving/optimizing equipment design for an installed base of engineering equipment, hereinafter referred to as managing equipment operation) can include optimizing equipment performance by establishing patterns and correlations that can lead to predictions and preventions of failures and inefficiencies and improvements in equipment design.
The method of these teachings includes continuously acquiring, utilizing acquisition systems, data for inputs, outputs and energy consumption of each one of a number of pieces of equipment, each one piece of equipment belonging to an installed base of a same class of equipment and analyzing, utilizing one or more processors, the acquired data in order to obtain patterns and relations for the installed base.
As shown in
The method of these teachings monitors the equipment by measuring the parameters that provide data analysis of equipment's performance and efficiency. The above disclosed framework, shown in
A flowchart description of an embodiment of the method of these teachings is shown in
The “measuring” step of the method of the present teachings ensures that the data that is relevant for design verification/validation, performance analysis, equipment operations management and maintenance and service planning and scheduling is accurately and continuously captured.
In one embodiment, the method of these teachings allows engineering experts to determine which parameters are required to derive equipment performance and efficiency. In order to be efficient in data acquisition, in one instance, the method of these teachings provides multiple methods of data acquisition. In one embodiment, the method of these teachings supports the following different modes for acquiring the parameter values on ongoing basis:
The present teachings provide for configuration of the entire eco-system by creating various hierarchies for classification of the acquired data with which the data can be analysed and the results of the analysis can be provided to various stakeholders. In one embodiment, the method of these teachings supports the following different modes for configuration
The above disclosed framework further allows equipment experts to configure the rules/algorithms for interpreting the acquired values individually or in pre-defined or ad-hoc co-related groups on an ongoing basis, and conversion of the same into meaningful and actionable information.
All interpretation/analysis rules/algorithms that are configured are executed on automated ongoing basis.
The “analysis” step of the method comprehensively examines captured data, from the perspective of identifying factors that affect performance and that are further useful in improving equipment operations, maintenance and service planning. The “analysis” step is not limited by known knowledge or by availability of expert at specific time etc. A flowchart description of the details of the analysis step of an embodiment of the method of these teachings is shown in
This analysis is based on correlating the various parameters of data acquired from the plurality of equipment and identification of specific patterns and relations. These patterns and relationships are in the form of comparison/evaluation of measurements over a period of time and on occurrences of specific events.
Each of the parameter from the acquired data is evaluated against certain configured values and ranges, and based on the results of comparisons; the system triggers further analysis steps or notification of deviations as per configured rules.
The parameters are collated over pre-configured periods of time (e.g. average over a fixed period etc.): these are then compared with similar values of one more other parameters. If deviations from pre-configured limits/ranges are observed, the system records these deviations. The system records all occurrences of such deviations, along with snapshots of parametric data recorded at the time of such occurrences. The system also trends the changes in specific values, ratios between specific parameters or observed deviations over a period of time. The trend itself is examined and matched against pre-configured trends/curves and mismatches/deviations are recorded and acted upon as per configured rules/algorithms. All of the above steps being carried out for each of the instantiation of the equipment as well as over a plurality of equipments belonging to the same class and which may be present at multiple geographic locations.
The equipment experts create and configure rules/algorithms that automate the process of interpreting the data and its analysis as described above, and conversion of the same into meaningful and actionable information. The step of providing the analysis results to stakeholders ensures that the analyzed information and its interpretations are conveyed/presented correctly and automatically to the relevant stakeholders in a format that can be customized to the requirements of the concerned stakeholder. This includes reports, dashboards and other visual data representation tools that give insights into the equipments current status and its productivity, utilization and efficiency. This also includes the logic of identification of specific occurrences or of specific conditions or of specific performance indicators (KPIs, e.g. Overall Equipment Effectiveness—OEE, or specific energy consumption of equipment etc.) and trends in the observed values of the same. Generating various performance, utilization and efficiency dashboards, reports, alerts etc. for owners of equipment to optimize equipment operations, effectively optimize the OPEX/TCO (operational expenditure/total cost of ownership) of the equipment. Co-relation of equipment output production with energy and utilities consumption, and identification of patterns and deviations in the same results in improved energy efficiency of the equipment. Accurate equipment performance and efficiency data allows equipment owners/users to accurately account for cost of the engineering function performed by the monitored equipment.
A block diagram representation of an embodiment of the system of these teachings is shown in
Another block diagram representation of an embodiment of the system of these teachings is shown in
The method of these teachings identifies the following as opportunities for improvement:
The “Improve” step of the method provides the outputs of the interpretation rules and analysis in various formats (visual/tabular/exported/transmitted etc.) to different defined stakeholders (equipment manufacturer's design team, maintenance/service teams, owners'operators etc.). The formats in which the output is provided to the stakeholders are customized in accordance with the specific requirements and configurations of the recipient stakeholder. Thus, the invention is capable of providing only the desired and relevant information in the most suitable format depending on the defined recipient stakeholder so that the information can be acted upon as necessitated.
The concerned stakeholders will bring about improvements in equipment performance & design in the following manner
Improved Equipment Performance: The equipment Key Performance Indicators which are calculated for each equipment are collated and analysed for all instances of the equipment across the installed base with respect to various patterns, correlations and scenarios which are defined as part of the configuration step such as input characteristics (e.g. specifications of raw material and utilities, specifications of the output produced by the equipment); operating conditions (e.g. ambient conditions at specific geographical locations); operations and maintenance procedures (e.g. automated, manual etc.); application specific configurations and integration (recipes, process specific configurations etc.).
For example, the end user configurator provides the kind of end user or industry where the equipment is operating. The site configurator provides the geography information of the installation.
The equipment performance parameters for the entire class of equipment installed base such as efficiency and performance are plotted against variables such as end user application, geography, fuel type etc. Various analysis techniques can be used for the same such as regression analysis, scatter diagrams, histograms etc. Based on this, equipment signature can be plotted and deviations from this signature can be tracked to further analyse deviations from the expected, average or best in class performance.
Most equipment users or OEM's don't realize how their equipment performance compares in terms of energy usage and efficiency because they don't have key information about how their equipment is performing over a period of time. Various Key Performance Indicators such as Energy Efficiency, MTBF (Mean Time Between Failures) can be benchmarked by comparing it with past performance, industry average or best in class. The KPI for each equipment in the installed base can be collated and analysed vis a vis the benchmark.
The performance monitoring & benchmarking which is done as described above, can be used to drive performance improvements for individual equipment users. The know ledge which is accumulated is used by the equipment experts at the OEM to analyse, troubleshoot, and suggest equipment operation, maintenance or service processes and practices which can bring about the desired improvements.
Improved Equipment Reliability: One of the techniques used for analysing equipment reliability is fault tree analysis. The equipment design experts create FTA's for each component, assembly and sub assembly and define the possible root cause of failures. These FTA's can be inputted to the software analysis package, and the data collected from across the installed base can be used to monitor specific occurrences of the conditions which could lead to equipment or component failure. Various rules and algorithms can be configured to monitor the occurrences of these conditions. This analysis can further be used to bring about improvements in the component design, or in overall system design, or in suggesting changes to the operation, maintenance or service of that component which can prevent such as failure.
Improved Equipment Design: Usually based on field service feedback, the product changes are undertaken. However these are based on individual unit observation summation and interpretations by the team of service people. Thus they are not comprehensive and result in many reiterations before these are stabilized. As such changes are costly and are of long cycle. When installed based is continuously monitored comprehensively as proposed, the analytics is exhaustive and could be made available to all the OEM functionaries like: R&D, Engineering, Materials, Manufacturing, and QA/QC. When coupled with service process data, the changes can be undertaken without going through the design reiterations.
Plurality of pre-determined equipment models of varying age depending on when they were deployed in the field can be monitored. These equipment models could be compared in terms of assembly, sub-assembly and components. Since the parameters from the equipment are mapped to the component, sub-assembly and assembly, it is possible to collect and analyse data on actual performance of these across the installed base.
For example, specific heavy oil filtering system could consist of variety of filtration, piping, type of filter, as well as mesh of the filter as well as centrifuging s′ stem. Based on the data available from variety of designs & models which are in the installed base, a selection could be made using the best performing design and a major design change can be made, to standardize on the most efficient system.
Similarly, materials function usually selects more than one vendor and the selection is based on testing against design specification by the vendor as well as testing by in house QA/QC. Installed base data can be analysed with respect to component makes, vendor source, with uniformly applied service and operating conditions to make changes to component source.
Certain critical manufacturing processes such as welding, heat treatment, machining can lead to product failures over a period of time. Continuous monitoring of installed base provides field failure data patters to be recognized. Further specific changes made to overcome these defects can continue to be monitored across the installed base to get insights for improvements in manufacturing processes.
Design, material and manufacturing process changes will also result in corresponding changes to the QA/QC procedures and their verification can be done by monitoring the installed base.
It should be noted that these teachings are capable of producing a variety of other analysis results.
Although these teachings have been described with respect to various embodiments, it should be realized these teachings are also capable of a wide variety of further and other embodiments within the spirit and scope of this
Number | Date | Country | Kind |
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1160/MUM/2009 | May 2009 | IN | national |
Filing Document | Filing Date | Country | Kind | 371c Date |
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PCT/IN10/00260 | 4/26/2010 | WO | 00 | 11/2/2011 |