Car assembly line fault diagnosis based on robust wavelet SVC and PSO

  • Authors:
  • Qi Wu

  • Affiliations:
  • -

  • Venue:
  • Expert Systems with Applications: An International Journal
  • Year:
  • 2010

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Abstract

Aiming at some hybrid noises from complex fault diagnosis system, a robust loss function is designed to penalize hybrid noises, a wavelet kernel function is constructed on basis of wavelet base function, and then this paper proposes robust wavelet v-support vector classifier machine (RWv-SVC). To seek the optimal parameter of RWv-SVC, particle swarm optimization (PSO) is proposed. The results of application in fault diagnosis of car assembly line show the hybrid diagnosis model based on RWv-SVC and PSO is effective and feasible, the comparison between the method proposed in this paper and other ones is also given, which proves this method is better than v-SVC and Wv-SVC.