基于文本信息抽取的列控车载设备故障发现

doi:10.11959/j.issn.2096-6652.202120

Abstract

Abstract:

The on-board safety computer of Chinese Train Control System generates a large number of Log files during operation every day, which together with the quality analysis record sheet, record the running status of all equipment and provide data support for the fault discovery and processing of the equipment of train control system.The use of these two types of text data is still limited to manual record, query and analysis, which has the problems of low efficiency, strong subjectivity and easy omission and error.The on-board safety computer Log files and the quality analysis record sheet were taken as the research object, and designs an information extraction method and the fault discovery automation scheme to replace the existing manual working mode.The information of Log files and manual recording by the staffs were analyzed, the word segmentation algorithm and information extraction algorithm were selected to find useful information automatically from two kinds of record to avoiding the cumbersome manual search.Then a failure analysis dictionary was built.The automatic fault discovery application was established by using regular expression algorithm.The automatic fault discovery and analysis functions of the application were validated by experiment.

Key words: on-board equipment, on-board safety computer Log file, quality analysis record sheet, fault discovery, in-formation extraction, failure analysis dictionary

CLC Number:

TP181

Xi CHEN, Runmei LI, Jian WANG, et al. Fault discovery based on text information extraction for on-board equipment of CTCS[J]. Chinese Journal of Intelligent Science and Technology, 2021, 3(2): 195-201.

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项	内容
车号	5542
端号	0
系	b
故障日期	4月1日
故障时间	12:49:24
故障描述	电台超时，C3掉C2，JRU中：车载ATP在12:49:20收到地面发送的信息包后，在10秒内未再次收到地面消息，导致无线连接超时，C3降级C2
通知情况	已通知南所
处理情况	测试正常、灯显正常，单呼试验，试验结果良好，已更换右侧电台

故障关键词	故障描述	故障处理方案
ATP A LOG MSG SPL_Initialise-104	ATPCU硬件故障	更换ATPCU模块后测试
BSA Permanent Error	启机BSA故障	换系重启
Speed sensor failure	多普勒雷达故障	核对轮径值设置是否有误；清洁速度传感器探头；雷达工作若正常，则在雷达参数标定后观察，否则更换
JRU message could not be sent (event size too long)	JRU硬件故障	重启ATP和JRU故障未消除，确定为JRU硬件故障，予以更换
EBFR state wrong	制动反馈继电器故障	检查BFB继电器与底座安装是否紧固没有松动；若无松动重启后无法恢复则更换处理
Network resource not available	网络资源不可用	C3降级为C2，更换电台

Fault discovery based on text information extraction for on-board equipment of CTCS

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