非瞬时检测系统的最优检测策略

研究非瞬时检测系统的检测策略问题，假定系统有2种工作状态（正常及异常）和1种故障状态，当系统工作时，为了判断系统是正常还是异常，每隔一段时间系统检测一次，检测时间是任意连续型随机变量。利用概率分析和补充变量方法，求出了系统的最优检测周期和诊断参数的最优临界值。

Research on optimal checking policies of systems when duration of checking is non-negligible

In this paper, the optimal checking policies of a system are discussed. The system has 2 working modes (normal and abnormal) and a failure mode. When the system is operating, it is checked once every time period to make sure it is in normal or abnormal. And, the duration of checking is a general random variable. The optimal checking cycle and diagnostic critical value of the system are obtained by using probability analysis and the supplementary variable technique.