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Maintenance and diagnosis method for trackside safety signal system

A technology of safety signal and diagnosis method, which is applied in the maintenance and diagnosis field of trackside safety signal system, can solve the problems of inaccurate and unreliable fault cause points, and achieve the effect of improving the accuracy and improving the accuracy of decision-making.

Active Publication Date: 2021-06-08
CASCO SIGNAL
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Problems solved by technology

It is often unreliable to find out the rules from a small sample; according to these rules, the cause of the fault found is not accurate

Method used

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  • Maintenance and diagnosis method for trackside safety signal system
  • Maintenance and diagnosis method for trackside safety signal system

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Embodiment Construction

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below, obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0036] Principle of the present invention: aim to propose the method that relies on computer to find fault point automatically. Gradient boosting tree (GBDT) has achieved excellent performance in related fields. Combining some characteristics of frequent itemsets and GBDT, a maintenance diagnosis solution for trackside safety signal system is given.

[0037] It includes the following steps: (1) extracting the events in a period of time before the fault into a transaction database according to the predefined extraction...

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Abstract

The invention relates to a method for maintenance and diagnosis of a trackside safety signal system, comprising the following steps: (1) extracting events within a period of time before a failure into a transaction database according to a predefined extraction type; (2) according to the transaction database, Summarize the law of fault occurrence; (3) determine the fault according to the law; (4) return the cause of the fault according to the importance. Compared with the prior art, the present invention has the following advantages: it can effectively find the failure pattern of trackside signal equipment, and automatically identify the cause of the failure according to the law, improve the efficiency of troubleshooting, and assist maintenance personnel to eliminate on-site failures more quickly and accurately.

Description

technical field [0001] The invention relates to the field of trackside safety signal systems, in particular to a maintenance and diagnosis method for trackside safety signal systems based on frequent item sets and gradient boosting trees. Background technique [0002] my country's rail transit has achieved leapfrog development. The trackside safety signal system is the core control system of rail transit. Once a failure occurs, it will have a huge impact on transportation; it has strict requirements on maintenance time and fault diagnosis accuracy. [0003] Now the field generally finds problems through manual methods, and gives diagnostic measures. The signal system is relatively complex, and the superficial problems are often not the real problems. It is necessary to manually summarize the fault rules, analyze them, find out the related events, and further find out the cause of the fault according to the characteristics of the event, and automatically provide a solution. ...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
Inventor 冯雷蒋红军徐先良刘彬韩涛夏明陈俊
Owner CASCO SIGNAL
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