Turnout fault early warning method

A technology of fault warning and turnout, applied in railway signaling and safety, etc.

Inactive Publication Date: 2013-10-23
SHANGHAI SHENTONG METRO +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The technical problem to be solved by the present invention is to overcome the manual way to diagnose the faults of rail transit equipment in the prior art, especially the defects of the turnout equipment in rail transit, and provide a method for early warning of turnout faults, which can detect the turnouts online through the fault tree failure of the device and alert the user

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Embodiment

[0024] In this embodiment, a fault tree needs to be built based on all possible faults of the turnout system in the rail transit system, so as to describe the influence of each component or equipment in the turnout system and external factors on the fault.

[0025] Therefore, first of all, locate the overall structural framework of the cause of the turnout equipment failure. When the turnout equipment fails, according to the difference of the turnout equipment, combined with the fault tree analysis method to gradually capture the abnormal information, and finally locate the source of the fault and the cause of the fault.

[0026] Since the fault tree diagram represents a logical causality diagram, it displays the state of the turnout system according to the state of each component in the turnout system, that is, the basic event. A fault tree diagram is built step by step from top to bottom and is related to each other according to the basic events. It uses the method of graphic...

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Abstract

The invention discloses a turnout fault early warning method. The method comprises the following steps that S1, basic events of faults in a turnout system are determined according to abnormal information of equipment in the turnout system; S2, turnout fault expression is used as a top event, a fault tree of the top event is built according to the basic events, and minimum cut sets of the fault tree is acquired through Boolean calculation; S3, the fault tree is traversed based on status information uploaded by the turnout system, whether some status information corresponds to the minimum cut sets of the fault tree or not is determined, and a bottom event of the minimum cut sets corresponding to the status information is used as early warning information and is provided for a user. According to the turnout fault early warning method, the faults of the turnout equipment in rail transit facilities are analyzed through the fault tree, all possible fault modes are determined, fault sources and fault causes are indicated, and accordingly the faults of the turnout equipment can be detected in an on-line mode, the user can be warned and maintenance suggestions can be provided for the user.

Description

technical field [0001] The invention relates to a method for early warning of a turnout failure, in particular to a method for early warning of a turnout failure in a rail transit section. Background technique [0002] The modern urban rail transit system is constantly developing towards high parameters, large capacity, and automation. On the one hand, it greatly improves the transportation efficiency and brings huge economic benefits. But on the other hand, once the track equipment breaks down, the losses caused will also increase by tens and hundreds of times, and the maintenance cost and time will also increase exponentially. Therefore, higher requirements are put forward for the reliability of rail equipment, and since the rail transit still uses manual detection to judge the faults of the rail transit system, when the capacity of the rail integration system is getting larger and larger, the manual detection required The continuous increase of the time has greatly affec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61L23/00
Inventor 巩林玉杨迪刘学纵刘金叶王圣根谢志林
Owner SHANGHAI SHENTONG METRO
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