Train fault analysis method and system based on fusion distance method

Abstract

The invention relates to the technical field of train fault detection, in particular to a train fault analysis method and system based on a fusion distance method. The train fault analysis system based on the fusion distance method comprises a working sample acquisition module, a correlation coefficient matrix construction module, a calculation module, a fault alarm threshold establishment module and a fault confirmation detection module, and due to the complexity of train faults, the correlation or independence between sample data sets is fuzzy and uncertain. The independence and the correlation are required to be considered in the calculation process; and the advantage of independence of the Euclidean distance and the advantage of correlation of the Mahalanobis distance can be considered by utilizing the distance fusion algorithm, so that the fault diagnosis is more accurate and reasonable.

Description

technical field [0001] The invention relates to the technical field of train fault detection, in particular to a train fault analysis method and system based on a fusion distance method. Background technique [0002] With the development of computer technology and communication technology, the application of communication technology based on fault handling is becoming more and more extensive. Fault processing and analysis tools are professional tools for technical support and after-sales personnel to troubleshoot, locate, count, and handle on-site faults. For on-site services In general, the important role of fault handling and analysis tools is irreplaceable. In order to ensure that the control system perfectly completes its corresponding functions, fault handling must comprehensively solve various possible misunderstandings such as network communication delays, packet loss, error packets, and redundancy. The cause of the fault record, for the train traction system, has mor...

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Problems solved by technology

[0003] There are many common failures in the traction system of trains, such as four-quadrant failure to start normally, abnormal water pressure, hardware drive failure of the upper and lower bridge arms, etc., serious cases may lead to serious accidents such as locomotive machine breakage, electrical module explosion, personal injury and death, etc. Most of the train traction control systems are not equipped with professional fault handling and analysis tools. During the debugging or use of the train traction control system, due to the lack of professional processing of fault-related data, it is difficult for on-site staff to locate the cause of the fault and find a solution to the fault. Low efficiency, time-consuming and labor-intensive

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