An Intelligent Fault Diagnosis Model Based on FastDTW for Railway Turnout

JI, WEN-Jiang and ZUO, Yuan and HEI, XING-Hong and Fei, rong (2020) An Intelligent Fault Diagnosis Model Based on FastDTW for Railway Turnout. In: Mobimedia 2020, 27-28 August 2020, Cyberspace.

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The turnout handles the direction of the train which is one of the key equipment in the railway transportation system. In this paper, by using real action current data obtained from switch machine model No.ZD7, a turnout fault diagnosis model based on the FastDTW pattern recognition algorithm was proposed. Firstly, the original current curve was segmented relate to the features of them. Then the warping path distance between the standard sample and the tested current curve was obtained according to FastDTW algorithm. Finally a dynamic optimized threshold was used to confirm whether there is a fault happened in the turnout. According to the experiment results, the proposed diagnose model without the prior knowledge of fault samples can works well both with single and double acting type turnout machines, owning to the following elements: the diagnose accuracy can be more than 96%, the time-cost can be improved more than 5 times compared with traditional DTW based algorithms

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: turnout; switch machine; fault diagnosis; fastdtw
Subjects: Q Science > QA Mathematics > QA76 Computer software
Depositing User: EAI Editor I.
Date Deposited: 04 Feb 2021 14:20
Last Modified: 04 Feb 2021 14:20

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