集中控制形式的计算机联锁系统冗余和切换技术研究

冗余和切换技术是计算机系统可靠性设计中常采用的一种技术。在区域集中控制方面,计算机联锁系统的典型应用包括区域联锁和远程控显。在基本计算机联锁系统的基础上,开发这两种典型的应用,重点是要设计好新增部分的冗余和切换。以采用高安全性和高可靠性的二乘二取二安全冗余结构的TYJL-ADX型计算机联锁为例,分析了2种应用的系统架构、硬件冗余设计,以及新增子系统的切换方式、故障情况下的切换设计和系统处理。

Study of Computer Interlocking System with Centralized Control Using Redundancy and Switching Technology

Redundancy and switching technique is often used in the reliability design of computer systems.The typical applications of computer interlocking system in centralized control include regional interlocking and remote control and display.On the basic of fundamental computer interlocking system,it is critical to design the newly added part of the redundancy and switching in the development of the two typical applications.Taking the TYJL-ADX type computer interlocking system as an example,whith is high safety and high reliability of two out of two multiply two safety redundancy structure,we analyze the system architecture and hardware redundancy design of the two kinds of applications as well as the switching manner of the newly added part and switching design and system disposal under the condition of failure.