接处警系统的可靠性研究

Study on reliability of alarm receive and dispose system

接处警的可靠性是应急系统正确、迅速、有效地处理应急事件,减少事故损失的关键,直接关系到人民的生命财产安全,也关系到社会的稳定。接处警系统是由接警、处警和事故后处理3部分构成的串联系统,任何部分的失误都会导致应急事故处理的失误。以接处警单元可靠性框图为基础,分析了接处警的隐性失误和显性失误,构建了单一、并联和表决逻辑的接处警可靠度及失误率的计算模型。对取自常州的实例进行了整理,获取了接处警的隐性失误和显性失误数值并代入接处警模型,认为3选2表决逻辑的接处警结构可以降低隐性失误率和显性失误率,并据此提出了提高应急系统接处警可靠性的具体措施。

Reliability of Alarm Receive and Dispose System can deal with the emergency events properly, quickly, effectively in the City Emergency System. It is key to reduce accident lose, and directly related to the life property safety and stabilization of society. Alarm Receive and Dispose System composed of three parts ： alarm receive, alarm dispose and after accident active. The fault of any part will lead to the invalidation of Emergency System. Base on the reliability frame in cell of receive and dispose alarm, the recessive and dominance fault were analyzed. The computation model of reliability and fault rate of Alarm Receive and Dispose System was established, which included three logical connecting： single, shunt-wound and voting. Based on the example in ChangZhou, the numerical value of recessive and dominance fault rate was acquired. So the 2-out-of-3 vote logical structure can reduce recessive and dominance fault rate. According to upwards, practical measures to improve the reliability of Alarm Receive and Dispose System in emergency system were brought forward.