摘要
为了进一步提高计算机联锁系统的可靠性,基于二乘二取二模型设计了一种冗余管理系统。引入一种故障自检自愈技术,实时修复系统可恢复性故障,维护联锁功能应用进程的稳定运行;对于系统不可恢复性故障,进行冗余切换,实现联锁系统的多级冗余。利用马尔可夫过程对系统进行可靠性分析,根据状态转移关系列出状态转移矩阵,通过MATLAB进行仿真计算,并与双机热备、三模冗余等常用冗余结构进行对比,研究结果表明二乘二取二具有更优冗余性能。
In order to further improve the reliability of computer interlocking system,based on the 2-vote-2 model,this paper designs a kind of redundancy management system in which a new technology named Fault Self-diagnosis and Selfhealing is introduced.Through this function,multilevel redundancy is realized that the redundant system can repairs recoverable faults in real-time to maintenance application processes of interlocking system and once the unrecoverable faults are occurred,the system carry on redundancy switch.
出处
《工业控制计算机》
2016年第8期78-79,81,共3页
Industrial Control Computer
基金
中央高校基本科研业务费专项资金资助(163111005)
