M4224双模数字列尾安全防护系统通信异常原因分析及解决措施  

Analysis and Solutions for Communication Failure of M4224 Dual Mode Digital End of Train Safety System

作　　者：孟晓升 MENG Xiaosheng

机构地区：[1]中国铁路上海局集团有限公司合肥电务段,合肥230011

出　　处：《铁道通信信号》2024年第11期99-103,共5页Railway Signalling & Communication

基　　金：中国铁路上海局集团有限公司自主立项科研计划项目(2021Z074)。

摘　　要：双模数字列尾安全防护系统已在铁路货运列车上普及。针对现场时有发生的列尾风压查询不到的问题,通过在系统上加装空口监测设备,捕捉到发送端和接收端数据的异常记录,找到问题根源在于双模数字列尾机车台和列尾主机扫描制式的时间不匹配。通过多次模拟试验,总结出列尾主机数字模式锁定、改进查询间隔时间、增加列尾机车台查询命令次数、增加备用查询手段等措施,可有效解决该问题,确保列尾机车台各项指标均符合性能要求,为双模数字列尾安全防护系统良好运用提供技术支持。The dual mode digital end of train safety system has been popularized on freight trains.In view of the problem that the tail wind pressure of freight trains cannot be queried from time to time on site,by installing Um interface monitoring device on the dual mode digital end of train safety system,the abnormal data records at the sending and receiving ends of dual mode digital end of train safety system are captured,and the root of the problem was found to be the time mismatch between the scanning mode of both locomotive radio station and end of train host.Then,through many simulation tests,the paper sums up some measures,such as locking the digital mode of end of train host,improving the query interval time of the dual mode digital end of train safety system,increasing the number of query commands of the locomotive radio station,increasing the backup query means,etc,it can effectively solve this problem,and ensure that all the indexes of the end of locomotive radio station meet the performance requirements, and provide technical support for the good application of the dual mode digital end of train safety system.

关 键 词：双模 数字列尾安全防护系统 列尾机车台 列尾主机 通信失效 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]