摘要
介绍轨道交通计算机冗余系统的结构和基本原理,在综合考虑了故障覆盖率及维修率的情况下,计算了2系统的可靠度和可用度,并利用MATLAB仿真功能给出了相关比较曲线。通过分析比较,得出"3取2"系统的可靠性要高于"2乘2取2"系统的可靠性,而"2乘2取2"系统比"3取2"系统具有更高的可用性。
The structure and basic principle of computer-based redundancy system of transit are introduced.Based on the comprehensive consideration of fault coverage rate and maintenance rate,the reliability and availability of the two systems are calculated,and their relevant comparison curves are given by MATLAB simulation function.By analysis and comparison,it is showed that 2-out-of-3 system has a greater reliability than double-2-vote-2 system,whereas the former is better than the letter for the availability.
出处
《现代城市轨道交通》
2011年第4期93-95,98,共4页
Modern Urban Transit
作者简介
王妍：北京通号国铁城市轨道技术有限公司，工程师，北京100166
