基于通信的列车控制信号系统安全控制平台的架构

Architecture of CBTC Real-time Vital Control Platform

为了保证计算的安全性、可靠性和高可用性,地铁信号系统广泛采用2取2、3取2的安全控制平台。对安全控制平台的基本架构从应用业务层、核心安全层、操作系统内核层和硬件层等进行了分析,并给出了一种主备两系切换的解决方案。

In order to meet the safety, reliability, and high availability requirements,metro signal system often adopts 2out of 2,2 out of 3 safety platforms. In this paper,the system architecture, including the application layer,the core security layer,the kernel layer and hardware layer in the operation system is analyzed,one solution for hot-redundant controller switchover is proposed.