一种列控车载系统的优化与实现  

Optimization and Implementation of Train Control On-board System

作　　者：卢瑞冰 Lu Ruibing(China Railway Nanning Group Co.,Ltd,Nanning 530029,China)

机构地区：[1]中国铁路南宁局集团有限公司,南宁530029

出　　处：《铁路通信信号工程技术》2023年第11期1-6,共6页Railway Signalling & Communication Engineering

基　　金：国家重点研发计划资助项目(2022YFB4300500)。

摘　　要：CTCS3-300T列控车载系统核心控制模块采用双套冗余方式,但在列车接口环节,系统使用单套DX/DI接口单元,形成单一失效节点,容易导致黏著性故障。为解决单套DX/DI对CTCS3-300T系统可用性的影响,提出使用冗余列车接口的优化设计方案,使用双套冗余DX-TH替代单套DX/DI模块。该方案不占用额外安装空间,不破坏既有CTCS3-300T其他子模块的安装空间完整性。可靠性模型分析表明,使用冗余DX-TH模块可有效提升CTCS3-300T系统的可靠性。The core control module of CTCS3-300T train control on-board system adopts double sets of redundancy.However,in the train interface link,the system uses a single set of DX/DI interface unit,forms a single failure point,which is easy to cause adhesive failure.In order to solve the impact of a single set of DX/DI on the availability of the CTCS3-300T system,an optimized design scheme using redundant train interfaces is proposed,double redundant DX-TH modules are used instead of single DX/DI modules.This solution does not take up additional installation space and does not jeopardize the integrity of the installation space of other sub-modules of the existing CTCS3-300T.Reliability model analysis shows that the use of redundant DX-TH modules can eff ectively improve the reliability of the CTCS3-300T system.

关 键 词：CTCS3-300T 列车接口 冗余 单点失效 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]