CTCS3-300T车载设备VDX时序问题分析与解决措施  

Analysis and Solutions of VDX Time Sequence Problems of CTCS3-300T Onboard Equipment

作　　者：常斌 Chang Bin(Shanghai Railway Communication Co.,Ltd.,Shanghai 200071,China)

机构地区：[1]上海铁路通信有限公司,上海200071

出　　处：《铁路通信信号工程技术》2023年第1期105-109,共5页Railway Signalling & Communication Engineering

摘　　要：安全数字输入/输出单元(VDX)在CTCS3-300T列控车载ATP系统中至关重要,列车在运行中发生VDX故障,将直接导致故障停车。为保障300T型ATP系统的正常运行,提高运营维护效率,结合VDX单元的功能原理,针对VDX时序问题,分析产生的原因,探讨解决措施,得到处理VDX时序问题的方案。Vital Digital Input/Output units(VDX)are very important in a CTCS3-300T onboard train control ATP system.When a train runs,the VDX time sequence problems will directly lead to the stopping of the train due to failure.In order to ensure the normal operation of 300T ATP systems and improve the efficiency of operation and maintenance,the causes of VDX time sequence problems are analyzed,the solutions are discussed with consideration of the functions and principle of VDX units.And the scheme for dealing with VDX time sequence problem is obtained.

关 键 词：停车故障 安全数字输入/输出单元 冗余系统 时序问题 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]