摘要
为节约时间和资金成本,在不改变既有CTCS-2/3级列控系统的前提下,进一步修改完善扩展其系统功能,提出采用二乘二取二架构安全扩展平台.平台内部双CPU之间采用时钟同步机制进行实时自检、互检,大大提高了安全扩展平台的安全性、可靠性和可用性.
In order to save time and costs,a new extensible safety platform is proposed for im-proving the functions of the existing CTCS 2/3 train control system without changing it.The ex-tensible safety platform has a double 2 out of 2 structure.Clock synchronization is used for real-time self-test and mutual test between the dual CPUs inside the platform,greatly improving the safety,reliability and availability of the extensible safety platform..
作者
王瑞
徐宁
朱嘉良
刘佳
Wang Rui;XuNing;Zhu Jialiang;Liu Jia
出处
《铁道通信信号》
2020年第5期35-38,共4页
Railway Signalling & Communication
关键词
安全扩展平台
二乘二取二架构
时钟同步
Extensible safety platform
Double 2 out of 2 structure
Clock synchronization
