警情分析的可靠性研究

Reliability Research of Alarm Analysis

警情分析是应急系统正确、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和社会的稳定。以接处警单元可靠性框图为基础,分析了警情分析的隐性失误和显性失误,构建了单一、并联和表决逻辑的警情分析的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,获取了警情分析的隐性失误和显性失误数值并代入警情分析模型,认为3选2表决逻辑的警情分析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警情分析可靠性的具体措施。

Alarm analysis is the key step in City Emergency System, by which we can deal with emergencies properly, quickly, effectively in the critical moment, and reduce the loss in accidents. It concerns the safety of the people＇s life and property and the stability of society. Based on the reliability frame in cells of receiving and disposing of alarm, the authors analyzed the recessive and dominance fault. The calculation model of reliability and fault rate of alarm analysis is established. It has three logical connecting： single, shunt-wound and voting. Baaed on the example in Changzhou, the numerical value of recessive and dominance fault rate was obtained. It suggests that the 2-out-of-3 voting logical structure can reduce recessive and dominance fault rate. According to the above, measures to improve the reliability of alarm analysis in emergency system were put forward.