自动站间闭塞电路动作异常案例分析及对策  

Case Analysis and Countermeasures of Abnormal Action of Automatic Station Block Circuit

作　　者：张松涛 李文涛 颉康 ZHANG Songtao;LI Wentao;XIE Kang

机构地区：[1]北京交大微联科技有限公司,北京100043 [2]中国国家铁路集团有限公司工电部,北京100844 [3]中国国家铁路集团有限公司北京安全监督管理办事处,北京100844

出　　处：《铁道通信信号》2024年第11期87-92,共6页Railway Signalling & Communication

基　　金：北京交大微联科技有限公司科研重点项目(BJMT-YFNB-2024005)。

摘　　要：单线铁路应用的自动站间闭塞是两站间安全高效接发列车的重要保证。针对两站联锁设备中一站采用电子执行模块通过站间信息传输设备与邻站继电自动站间闭塞设备结合,发生的一起因自动站间闭塞电路动作异常而造成站间闭塞办理失败的案例,对两站现场数据进行研究分析,得出本站联锁系统因接收到的对方站发来的同意接车正电信息脉冲时长较短,将其判定为无效信息,导致闭塞命令信息交互流程中止,是造成站间闭塞办理失败的主要原因。进一步研究发现,作为中间传递环节的站间信息传输设备,在不利条件下产生的脉冲时长会缩短。针对该问题提出3种解决方案,经比选最终选取修改影响较小的方案,即修改联锁设备对站间闭塞信息时长的容忍参数,现场实施后效果良好。该案例启示,采取基于通信方式直接交互闭塞信息的方式,可减少中间环节,是以后单线铁路实现站间闭塞的发展趋势。The automatic station block applied in single-track railway is an important guarantee for safe and efficient train receiving and departure between two stations.Based on a case of failure of station block handling caused by abnormal action of automatic station block circuit in one of two stations′interlocking equipment by using electronic execution module combined with relay automatic station block equipment of neighboring stations through information transmission equipment between stations,the analysis of field data of two stations showed that the interlocking system of this station judged it as invalid information because of the short duration of positive information pulse received from the other station,which led to the suspension of block command information interaction process.Further research showed that the information transmission equipment between stations,as an intermediate transmission link,will shorten the pulse duration under unfavorable conditions.To solve this problem,three solutions were put forward,and the scheme with less modification influence was selected,that was,modifying the tolerance parameter of interlocking equipment to station block information duration,and the effect is good after field implementation.This case enlighten that the way of directly interacting block information based on communication can reduce intermediate links,which is the development trend of realizing station block in single-track railway in the future.

关 键 词：自动站间闭塞 闭塞命令 64D半自动闭塞 光通信 电子执行模块 联锁 

分 类 号：U284.3[交通运输工程—交通信息工程及控制] U284.4[交通运输工程—道路与铁道工程]