Double Fault Detection of Cone-Shaped Redundant IMUs Using Wavelet Transformation and EPSA
A model-free hybrid fault diagnosis technique is proposed to improve the performance of single and double fault detection and isolation. This is a model-free hybrid method which combines the extended parity space approach (EPSA) with a multi-resolution signal decomposition by using a discrete wavele...
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| Format: | Article |
| Language: | English |
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MDPI AG
2014-02-01
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| Series: | Sensors |
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| Online Access: | http://www.mdpi.com/1424-8220/14/2/3428 |
| _version_ | 1798005746606014464 |
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| author | Wonhee Lee Chan Gook Park |
| author_facet | Wonhee Lee Chan Gook Park |
| author_sort | Wonhee Lee |
| collection | DOAJ |
| description | A model-free hybrid fault diagnosis technique is proposed to improve the performance of single and double fault detection and isolation. This is a model-free hybrid method which combines the extended parity space approach (EPSA) with a multi-resolution signal decomposition by using a discrete wavelet transform (DWT). Conventional EPSA can detect and isolate single and double faults. The performance of fault detection and isolation is influenced by the relative size of noise and fault. In this paper; the DWT helps to cancel the high frequency sensor noise. The proposed technique can improve low fault detection and isolation probability by utilizing the EPSA with DWT. To verify the effectiveness of the proposed fault detection method Monte Carlo numerical simulations are performed for a redundant inertial measurement unit (RIMU). |
| first_indexed | 2024-04-11T12:43:59Z |
| format | Article |
| id | doaj.art-2be09a0e7e8546c486edaeb5a54a3a6c |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-04-11T12:43:59Z |
| publishDate | 2014-02-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-2be09a0e7e8546c486edaeb5a54a3a6c2022-12-22T04:23:24ZengMDPI AGSensors1424-82202014-02-011423428344410.3390/s140203428s140203428Double Fault Detection of Cone-Shaped Redundant IMUs Using Wavelet Transformation and EPSAWonhee Lee0Chan Gook Park1Department of Mechanical and Aerospace Engineering, ASRI, Seoul National University, Seoul 151-741, KoreaDepartment of Mechanical and Aerospace Engineering, Institute of Advanced Aerospace Technology, Seoul National University, Seoul 151-741, KoreaA model-free hybrid fault diagnosis technique is proposed to improve the performance of single and double fault detection and isolation. This is a model-free hybrid method which combines the extended parity space approach (EPSA) with a multi-resolution signal decomposition by using a discrete wavelet transform (DWT). Conventional EPSA can detect and isolate single and double faults. The performance of fault detection and isolation is influenced by the relative size of noise and fault. In this paper; the DWT helps to cancel the high frequency sensor noise. The proposed technique can improve low fault detection and isolation probability by utilizing the EPSA with DWT. To verify the effectiveness of the proposed fault detection method Monte Carlo numerical simulations are performed for a redundant inertial measurement unit (RIMU).http://www.mdpi.com/1424-8220/14/2/3428extended parity space approachfault detection and isolationinertial sensorredundant IMUwavelet transform |
| spellingShingle | Wonhee Lee Chan Gook Park Double Fault Detection of Cone-Shaped Redundant IMUs Using Wavelet Transformation and EPSA Sensors extended parity space approach fault detection and isolation inertial sensor redundant IMU wavelet transform |
| title | Double Fault Detection of Cone-Shaped Redundant IMUs Using Wavelet Transformation and EPSA |
| title_full | Double Fault Detection of Cone-Shaped Redundant IMUs Using Wavelet Transformation and EPSA |
| title_fullStr | Double Fault Detection of Cone-Shaped Redundant IMUs Using Wavelet Transformation and EPSA |
| title_full_unstemmed | Double Fault Detection of Cone-Shaped Redundant IMUs Using Wavelet Transformation and EPSA |
| title_short | Double Fault Detection of Cone-Shaped Redundant IMUs Using Wavelet Transformation and EPSA |
| title_sort | double fault detection of cone shaped redundant imus using wavelet transformation and epsa |
| topic | extended parity space approach fault detection and isolation inertial sensor redundant IMU wavelet transform |
| url | http://www.mdpi.com/1424-8220/14/2/3428 |
| work_keys_str_mv | AT wonheelee doublefaultdetectionofconeshapedredundantimususingwavelettransformationandepsa AT changookpark doublefaultdetectionofconeshapedredundantimususingwavelettransformationandepsa |