车辆段计算机联锁系统全电子化研究

Metro Depot's Computer Interlocking System Adapting to Electronic Executive Unit

基于控制技术、电子技术及自动检测技术的发展,提出用电子执行单元取代车辆段计算机联锁执行层的采集/驱动板和继电接口电路方案,实现计算机联锁的全电子化。对全电子化后的功能结构进行详细说明,并介绍全电子化后的联锁双机与电子执行单元的信息交互方式,列举为提高电子执行单元的安全性、可靠性在软件、硬件方面所采取的防护措施,证明全电子化联锁在维护性、扩展性、安全性方面与计算机联锁相比更有优势,是联锁系统发展的方向。

This paper presents a scheme of realizing full - electronic computer interlocking system by using electronic executive unit to replace the I/O board and relay of metro depot＇s computer interlocking system. The paper offers a detailed illustration about functional structure of full- electronic computer interlocking system. Meanwhile, the paper analyzes the way of information interaction between two interlocking computers based on full - electronic computer interlocking system and electronic executive unit. The protecting measures in software and hardware＇s maintenance are listed, which are adopted to improve the safety and reliability of electronic executive unit. Compared with computer interlocking system, full- electronic computer interlocking system has more advantages in maintainability, extensbility and safety. It is the direction of the development of computer interlocking system.