The Elevator Fault Diagnosis Method Based on Sequential Probability Ratio Test (SPRT)
Automation, Control and Intelligent Systems
Volume 5, Issue 4, August 2017, Pages: 50-55
Received: Jun. 12, 2017;
Accepted: Jun. 26, 2017;
Published: Jul. 26, 2017
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Chang Liu, Department of Electrical and Information Engineering, Jinan University, Zhuhai, China
Shu Zhou, Department of Electrical and Information Engineering, Jinan University, Zhuhai, China
Xindong Liu, Department of Electrical and Information Engineering, Jinan University, Zhuhai, China
Can Chen, Guangdong Power Grid Company, Zhuhai Power Supply Bureau, Zhuhai, China
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An elevator fault diagnosis method based on Sequential Probability Ratio Test (SPRT) is proposed in this paper. In order to verify the effectiveness of the method, this paper designed the fault diagnosis experiment for elevator mechanical system. Firstly, the wavelet transformation is used to filter the noise of the vibration signal collected in the experiment. Then the kurtosis value of the filtered signal is extracted as the index to represent the practical status of the elevator. Finally, the SPRT algorithm is used to diagnose the faults of the elevator mechanical system. Experimental results show that this method has high accuracy in practical applications. It is important to improve the performance of the fault diagnosis for the elevator mechanical system.
Sequential Probability Ratio Test, Fault Diagnosis, Wavelet Transformation, Kurtosis
To cite this article
The Elevator Fault Diagnosis Method Based on Sequential Probability Ratio Test (SPRT), Automation, Control and Intelligent Systems.
Vol. 5, No. 4,
2017, pp. 50-55.
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/
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Li HuiSheng. “Elevator control technology”, Machinery Industry Press. pp. 59-63 (1996).
Li Wei, Zhu Yun, Mao Haijie, et al. “Pipeline Leak Detection Based on SPRT and Wavelet Transform”, Computer Measurement & Control. 13 (9), pp.903-904+907 (2005).
Yang Yang, Zhao Guojun, Liu Zheng. “Expert Systems for Elevator Controller Fault Diagnosis”, Techniques of Automation and Applications. 21 (5), pp.40-42 (2002).
Li Gang. “Research on safety evaluation technology and method of long service elevator”, South China University of Technology. (2014).
Zhang Fuen, Wu Naiyou Zhang Jinling, Li Yanggeng. “Principle, design and safety maintenance of AC speed control elevator”, Machinery Industry Press. (30), pp.77-79 (1999).
Wald A. “Sequential Analysis”, New York: Wiley. (1947).
Yu Chenggang, Su Bingjing. “A non-parametric sequential rank-sum probability ratio test method for binary hypothesis testing”, Signal Processing. (84), pp.1267-1272 (2004).
Chen Xiru. “An Introduction to Mathematical Statistics”, Beijing: Science Press. (1983).
Fan Xianfeng, Jiang Xingwei. “Signal de-noise based on wavelet packets transform”, Journal of Harbin Institute of technology. 35 (7), pp.809-811 (2003).
Cao Zhichao. “The theoty and experiment research of high-speed elevators vibration characteristics”, Central South University. (2012).