Application of WAVELET-SVM in Fault Diagnosis for the UV Control System

Sheng Wu Wang; Xiu Hua Shi; Hui Xu; Zhao Jing Tong

doi:10.4028/www.scientific.net/AMM.65.199

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 65Application of WAVELET-SVM in Fault Diagnosis for...

Application of WAVELET-SVM in Fault Diagnosis for the UV Control System

Abstract:

Wavelet Analysis extracts the main feature from the fault signal through wavelet transformation, so it is advantageous to withdraw fault characteristic for fault diagnosis. Support Vector Machine (SVM) has shown its good classification performance in fault diagnosis. A new method of fault diagnosis for UV control system based on WAVELET-SVM is raised. The sensor output is sampled in frequency domain and it is preprocessed by wavelet to extract main vectors of the fault features. Fault patterns under various states are classified using multi-class SVM, and fault diagnosis is realized. The simulation results show that WAVELET-SVM is feasible to detect and locate faults quickly and exactly and has high robustness.

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Periodical:

Applied Mechanics and Materials (Volume 65)

Pages:

199-203

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.65.199

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Online since:

June 2011

Authors:

Sheng Wu Wang, Xiu Hua Shi, Hui Xu, Zhao Jing Tong

Keywords:

Fault Diagnosis, Sensor, Support Vector Machine (SVM), UV, Wavelet

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