A fault diagnosis method for high-speed train control on-board equipment

A technology for on-board equipment and fault diagnosis, applied in program control, general control system, control/regulation system, etc., can solve the problems of maintenance personnel burden, inaccurate fault location, high misdiagnosis rate of data monitoring system, etc., and achieve the goal of reducing dimensionality Effect

Inactive Publication Date: 2019-06-18
CHINA RAILWAYS CORPORATION +2
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  • Abstract
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Problems solved by technology

[0008] (2) The data monitoring system still has the problems of high misdiagnosis rate and inaccurate fault location in practical application, and its data analysis requires a lot of manual participation, which undoubtedly brings a heavy burden to maintenance personnel

Method used

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  • A fault diagnosis method for high-speed train control on-board equipment
  • A fault diagnosis method for high-speed train control on-board equipment
  • A fault diagnosis method for high-speed train control on-board equipment

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Embodiment 1

[0043] The present invention utilizes the prior fault knowledge of the on-board equipment, extracts the fault features of the train control on-board system, establishes a fault decision table, uses a reduction algorithm to reduce attributes, reduces the number of attributes in the decision table, and further reduces the cost of Bayesian network construction. Complexity of modeling and reasoning. Establish a Bayesian network model and use the Bayesian network model for diagnostic reasoning. The present invention comprises following key steps:

[0044] First, fault data analysis and feature extraction of high-speed train control on-board equipment

[0045] Establish a feature lexicon in the field of vehicle equipment. The feature vocabulary is as follows:

[0046] {transponder, message, error, BTM, DMI, host, communication interruption, output, stop, wireless timeout, emergency brake, C3 to C2, A series, B series, A series, restart, B series, RBC, establishment , connection,...

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Abstract

The invention relates to a high-speed railway train control vehicle-mounted equipment fault diagnosis method. The high-speed railway train control vehicle-mounted equipment fault diagnosis method is characterized in that the method comprises the main steps of: step 1, analyzing high-speed railway train control vehicle-mounted equipment fault data and extracting features; step 2, extracting a minimal decision information table through reducing fault decision tables; and step 3, establishing a Bayesian fault diagnosis network, carrying out fault diagnosis and providing emergency decision support.

Description

technical field [0001] The invention belongs to the technical field of rail transit operation control, and relates to a fault diagnosis method for high-speed rail train control vehicle equipment. Background technique [0002] CTCS-3 train control on-board equipment is an important technical equipment of my country's high-speed railway, and one of the key technical equipment to ensure the safe, reliable and efficient operation of high-speed trains. The on-board equipment receives RBC, transponder, and track circuit data from the ground through GSM-R, BTM, and TCR. Comprehensively process information such as train traffic permit, line data, train interface, driver operation, etc., and generate the most unfavorable speed control curve according to the target distance continuous speed control mode. Adopt sound and light alarm, cut off traction, three-level common braking (weak, medium, strong) and emergency braking measures to monitor train operation and ensure train operation ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B23/02
CPCG05B23/024G05B2219/24048
Inventor 张路郭进杨扬王小敏王海峰梁潇
Owner CHINA RAILWAYS CORPORATION
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