适用于CTCS-3级安全计算机平台的SBP安全总线设计  

Design of SBP Safety Bus Applicable for CTCS-3 Safety Computer Platform

作　　者：严敢 齐春晨 Yan Gan;Qi Chunchen(CRSC Research&Design Institute Group Co.,Ltd.,Beijing 100070,China;Beijing Engineering Technology Research Center of Operation Control Systems for High Speed Railways,Beijing 100070,China)

机构地区：[1]北京全路通信信号研究设计院集团有限公司,北京100070 [2]北京市高速铁路运行控制系统工程技术研究中心,北京100070

出　　处：《铁路通信信号工程技术》2022年第3期12-16,共5页Railway Signalling & Communication Engineering

基　　金：北京全路通信信号研究设计院集团有限公司科研项目(2300-K1210004.03)。

摘　　要：为解决CTCS-3级的安全计算机平台内部通信总线不安全的问题,设计一种能够满足EN 50159中有关安全网络需求的总线。该总线具备硬件二乘二取二,能够将应用层数据分组打包,且对应用层数据添加C R C编码和校验,并且能检测点对点链路连接状态的主-从之间全双工的数据通信等多项通信功能和安全保障功能。能够解决车载平台内部安全通信的问题,对安全计算机车载平台的研究具有重要意义。In order to solve the problem of unsafe internal communication bus of CTCS-3 safety computer platform,this paper designs a kind of bus that can meet the security network requirements in EN 50159.The bus has hardware structure of dual two out of two to group and package application layer data,add CRC encoding and validation to application layer data,and detect a number of communication functions and security assurance functions such as the full-duplex data communication between the master and the slave of point-to-point link connection status.The bus can solve the problem of internal security communication of onboard platform and have great signifi cance to the research of safety computer onboard platform.

关 键 词：安全总线 安全平台 时序状态机 SBP 

分 类 号：U284.48[交通运输工程—交通信息工程及控制]