摘要
冗余技术是提高计算机系统安全可靠性的有效手段。介绍了城市轨道交通信号系统软件冗余与硬件冗余的原理,对采用的冗余技术进行了对比分析。分析了现代城市轨道交通信号系统中的冗余技术方案。以URBALISTM系统为例,从设备冗余与通信冗余两方面分析,指出冗余技术的合理设计对提高城市轨道交通信号系统的安全可靠性会产生重要影响。
Redundancy is an effective means to improve the security and reliability of computer system. This article in- troduces the principle of software redundancy and hardware redundancy in urban rail traffic signal system, analyzes the application of redundancy technology, the redundancy scheme in modern rail transit signal system. Finally, based on the URBALISTM system and from the aspects of equip- ment redundancy and communication redundancy, the im- portant impact of rational redundancy design on urban rail transit security and reliability are pointed out.
出处
《城市轨道交通研究》
北大核心
2012年第5期110-113,共4页
Urban Mass Transit
