Fault diagnosis method based on time domain weighted data aggregation and information fusion
Fault diagnosis of equipment is a key issue in the industrial field, and it is essential to keep abreast of equipment status. However, previous studies either considered fault data at a single moment or gave the same weight to data over a period of time. In view of the problems above, fault diagnosi...
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| Format: | Article |
| Language: | English |
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Wiley
2019-09-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147719875629 |
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| _version_ | 1832547323921563648 |
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| author | Yu Zhang Wen Jiang Xinyang Deng |
| author_facet | Yu Zhang Wen Jiang Xinyang Deng |
| author_sort | Yu Zhang |
| collection | DOAJ |
| description | Fault diagnosis of equipment is a key issue in the industrial field, and it is essential to keep abreast of equipment status. However, previous studies either considered fault data at a single moment or gave the same weight to data over a period of time. In view of the problems above, fault diagnosis method based on time domain weighted data aggregation and information fusion is proposed in this article. First, the monitored data of sensors loaded by the equipment are aggregated utilizing the linear decaying weights. Then, Gaussian models of each fault type under different fault features are established based on aggregated data. And the basic probability assignments are generated by matching aggregated testing samples with the constructed Gaussian model. At last, the basic probability assignments generated under each fault feature are fused by Dempster combination rule. The proposed method is verified and the results show that the total fault recognition rate can reach 97.5%, which increased by 1.9% compared with the method that Gaussian model constructed by original data. |
| format | Article |
| id | doaj-art-d55f2dca3e404229b2282bc496ddf77a |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2019-09-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-d55f2dca3e404229b2282bc496ddf77a2025-02-03T06:45:17ZengWileyInternational Journal of Distributed Sensor Networks1550-14772019-09-011510.1177/1550147719875629Fault diagnosis method based on time domain weighted data aggregation and information fusionYu ZhangWen JiangXinyang DengFault diagnosis of equipment is a key issue in the industrial field, and it is essential to keep abreast of equipment status. However, previous studies either considered fault data at a single moment or gave the same weight to data over a period of time. In view of the problems above, fault diagnosis method based on time domain weighted data aggregation and information fusion is proposed in this article. First, the monitored data of sensors loaded by the equipment are aggregated utilizing the linear decaying weights. Then, Gaussian models of each fault type under different fault features are established based on aggregated data. And the basic probability assignments are generated by matching aggregated testing samples with the constructed Gaussian model. At last, the basic probability assignments generated under each fault feature are fused by Dempster combination rule. The proposed method is verified and the results show that the total fault recognition rate can reach 97.5%, which increased by 1.9% compared with the method that Gaussian model constructed by original data.https://doi.org/10.1177/1550147719875629 |
| spellingShingle | Yu Zhang Wen Jiang Xinyang Deng Fault diagnosis method based on time domain weighted data aggregation and information fusion International Journal of Distributed Sensor Networks |
| title | Fault diagnosis method based on time domain weighted data aggregation and information fusion |
| title_full | Fault diagnosis method based on time domain weighted data aggregation and information fusion |
| title_fullStr | Fault diagnosis method based on time domain weighted data aggregation and information fusion |
| title_full_unstemmed | Fault diagnosis method based on time domain weighted data aggregation and information fusion |
| title_short | Fault diagnosis method based on time domain weighted data aggregation and information fusion |
| title_sort | fault diagnosis method based on time domain weighted data aggregation and information fusion |
| url | https://doi.org/10.1177/1550147719875629 |
| work_keys_str_mv | AT yuzhang faultdiagnosismethodbasedontimedomainweighteddataaggregationandinformationfusion AT wenjiang faultdiagnosismethodbasedontimedomainweighteddataaggregationandinformationfusion AT xinyangdeng faultdiagnosismethodbasedontimedomainweighteddataaggregationandinformationfusion |