Analog instrument pointer monitoring and parameter estimation via line scan vision
Analog instruments are widely used in energy engineering. However, an analog instrument is only human-readable because it does not have a built-in digital communication interface. In power system, it is necessary not only to record the final output value but also to monitor the associated dynamic po...
| Main Author: | |
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Energy Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2352484722019503 |
| _version_ | 1797901904503635968 |
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| author | Qing Wang |
| author_facet | Qing Wang |
| author_sort | Qing Wang |
| collection | DOAJ |
| description | Analog instruments are widely used in energy engineering. However, an analog instrument is only human-readable because it does not have a built-in digital communication interface. In power system, it is necessary not only to record the final output value but also to monitor the associated dynamic power process. The present paper develops an analog instrument pointer monitoring and parameter estimation system via line scan vision. A line scan camera is used to collect the dynamic process data of the analog instrument. The captured images can be regarded as a discrete temporal sequence. The light-spot centroid method is implemented to extract the initial pointer position. Data normalization is used to process the initial data. By analysing the system step response function, we construct a cost function, and Least-squares identification algorithm is used to estimate the damp and natural frequency. The proposed method monitors the dynamic process of the analog instrument with various inputs, such as sine signals and random signals, thereby enabling condition monitoring. Experimental prediction results show that the proposed estimation method is effective and robust. |
| first_indexed | 2024-04-10T09:09:20Z |
| format | Article |
| id | doaj.art-e61866dcf79b42b092f6a271f73f8c96 |
| institution | Directory Open Access Journal |
| issn | 2352-4847 |
| language | English |
| last_indexed | 2024-04-10T09:09:20Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Energy Reports |
| spelling | doaj.art-e61866dcf79b42b092f6a271f73f8c962023-02-21T05:14:00ZengElsevierEnergy Reports2352-48472022-11-0181307613082Analog instrument pointer monitoring and parameter estimation via line scan visionQing Wang0College of Mechanical and Electrical Engineering, Qingdao University, Qingdao, PR ChinaAnalog instruments are widely used in energy engineering. However, an analog instrument is only human-readable because it does not have a built-in digital communication interface. In power system, it is necessary not only to record the final output value but also to monitor the associated dynamic power process. The present paper develops an analog instrument pointer monitoring and parameter estimation system via line scan vision. A line scan camera is used to collect the dynamic process data of the analog instrument. The captured images can be regarded as a discrete temporal sequence. The light-spot centroid method is implemented to extract the initial pointer position. Data normalization is used to process the initial data. By analysing the system step response function, we construct a cost function, and Least-squares identification algorithm is used to estimate the damp and natural frequency. The proposed method monitors the dynamic process of the analog instrument with various inputs, such as sine signals and random signals, thereby enabling condition monitoring. Experimental prediction results show that the proposed estimation method is effective and robust.http://www.sciencedirect.com/science/article/pii/S2352484722019503Energy engineeringMachine visionLine scan cameraDate normalizationPointer monitoring |
| spellingShingle | Qing Wang Analog instrument pointer monitoring and parameter estimation via line scan vision Energy Reports Energy engineering Machine vision Line scan camera Date normalization Pointer monitoring |
| title | Analog instrument pointer monitoring and parameter estimation via line scan vision |
| title_full | Analog instrument pointer monitoring and parameter estimation via line scan vision |
| title_fullStr | Analog instrument pointer monitoring and parameter estimation via line scan vision |
| title_full_unstemmed | Analog instrument pointer monitoring and parameter estimation via line scan vision |
| title_short | Analog instrument pointer monitoring and parameter estimation via line scan vision |
| title_sort | analog instrument pointer monitoring and parameter estimation via line scan vision |
| topic | Energy engineering Machine vision Line scan camera Date normalization Pointer monitoring |
| url | http://www.sciencedirect.com/science/article/pii/S2352484722019503 |
| work_keys_str_mv | AT qingwang analoginstrumentpointermonitoringandparameterestimationvialinescanvision |