The Elevator Fault Diagnosis Method Based on Sequential Probability Ratio Test (SPRT)

• DOI: 10.11648/j.acis.20170504.11
• Publication Date: 2017-10-16T08:26:18Z
• Authors: Chang Liu
• Keywords: Elevator; Kurtosis; SIGNAL (programming language)

An elevator fault diagnosis method based on Sequential Probability Ratio Test (SPRT) is proposed in this paper. In order to verify the effectiveness of method, paper designed experiment for mechanical system. Firstly, wavelet transformation used filter noise vibration signal collected experiment. Then kurtosis value filtered extracted as index represent practical status elevator. Finally, SPRT algorithm diagnose faults Experimental results show that has high accuracy applications. It important improve performance