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Subway signal system maintenance method based on fuzzy comprehensive evaluation

A technology of fuzzy comprehensive evaluation and signal system, applied in the direction of instruments, complex mathematical operations, data processing applications, etc., can solve the problems of difficult data acquisition, complicated reliability evaluation steps, unclear equipment maintenance sequence, etc., to achieve strong real-time, The method is simple and effective, and the effect of improving accuracy

Pending Publication Date: 2021-07-23
SHANGHAI INST OF TECH
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Problems solved by technology

[0006] In order to overcome the deficiencies in the prior art, the present invention provides a maintenance method for the subway signal system based on fuzzy comprehensive evaluation, which solves the deficiencies in the prior art such as difficult data acquisition, complicated reliability evaluation steps, and unclear equipment maintenance sequence

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  • Subway signal system maintenance method based on fuzzy comprehensive evaluation
  • Subway signal system maintenance method based on fuzzy comprehensive evaluation
  • Subway signal system maintenance method based on fuzzy comprehensive evaluation

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Embodiment

[0048] The subway signal system has a high level of integration and complexity, and is easily affected by the external environment, resulting in a decline in the status of facilities and equipment and failures of varying degrees. Therefore, timely monitoring of the reliability of equipment and systems is essential to ensure the normal operation of subway lines. important measures to operate. The subway signal system maintenance method based on fuzzy comprehensive evaluation provided by the present invention takes a certain subway line signal system part equipment as an example, and comprises the following steps:

[0049] Step S1: Collect the affiliation of the equipment under the signal system, and draw the equipment fault tree diagram. This embodiment takes the axle counting equipment under the signal system and the ZYJ7 hydraulic switch machine as examples. The fault tree diagram is shown in image 3 ;

[0050] Step S2: Define evaluation indicators, fuzzy comments, and divi...

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Abstract

The invention discloses a metro signal system maintenance method based on fuzzy comprehensive evaluation, and the method comprises the steps: 1, drawing a fault tree graph which is used for sorting the affiliation relation between layers of a system, and obtaining a fuzzy comprehensive evaluation frame; 2, defining evaluation indexes and fuzzy comments, dividing a maintenance urgency score interval for formulating an expert evaluation table, and normalizing the content of the expert evaluation table and a scoring result; 3, according to the evaluation indexes and the fuzzy comments, establishing an expert evaluation table for collecting evaluation of professional system maintenance personnel on the system to obtain a membership matrix and a weight matrix required by fuzzy comprehensive evaluation; 4, performing fuzzy comprehensive evaluation, namely quantifying fuzzy factors based on an evaluation method of fuzzy mathematics, evaluating the equipment and the system from multiple aspects, and obtaining a scoring result, thereby determining a maintenance urgency level of the system and an equipment maintenance priority.

Description

technical field [0001] The invention relates to the technical field of data processing and analysis, in particular to a maintenance method for a subway signal system based on fuzzy comprehensive evaluation. Background technique [0002] The signal system plays the role of information transmission in the operation of the subway. Its integration and complexity are relatively high. It is affected by the external environment and the factors of the service life of the facilities and equipment, which leads to the decline of the status of the facilities and equipment and the occurrence of different degrees of failure. Therefore, timely monitoring of the reliability of equipment and systems, and proper maintenance based on reliability are important measures to ensure the normal operation of subway lines. Reliability assessment for complex systems is not a small project, and the data is difficult to obtain. The maintenance method of the subway signal system based on fuzzy comprehensi...

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Application Information

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IPC IPC(8): G06Q10/00G06Q10/06G06F17/16
CPCG06Q10/20G06Q10/06393G06F17/16
Inventor 季国一邹劲柏陈文王伟雯刘虎马伟杰陈勤华沈朱楷万衡沙泉魏诗燕兰蒙安晓彤李高嵩
Owner SHANGHAI INST OF TECH
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