计算机联锁系统的可靠性和安全性比较

RCA46COMPUTERANDCOMMUNICATIONANDSIGNALComparingofreliabilityandsecuritywithComputer-basedInterlockingSystemmultiplyingmodelMAXiao-ling,ZHANGYou-peng,DUQiu-mao,ZHENGWei(SchoolofAutomatization&ElectricEngineering,LanzhouJiaotongUniversity,Lanzhou730070,China)Abstract:ReliabilityandsafetywerekeypropertiesoftheComputer-basedInterlockingSystem.TheMarkovmodelofthetwosystemsweresetupwithconsideringmaintenancerateand faultycoverageratio.Then,thereliabilityandsecurityofthetwosystemsweresimulatedandcomputedwithMatlab.Itwasshowedthatfaultycoverageratiohadagreaterimpactonreliabilityandsafetyofthetwosystems,and2-out-of-2multiplying’sreliabilityandsafetywerebetterthantheSystemof2-out-of-3.Keywords:Computer-basedInterlockingSystem;reliability;safety;comparingRCA47RCA48RCA49