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针对可修系统提出故障检测率的概念，研究了考虑故障检测率的可修ｋ／ｎ（Ｇ）表决系统。首先考察系统的状态转移图，建立了系统的马尔可夫模型，并进行瞬态和稳态分析，提出系统状态概率及可用度的简化算法，对简化算法与传统算法的计算复杂度作了比较。给出了几个可修ｋ／ｎ（Ｇ）表决系统的稳态分析结果，表明了故障检测率的概念对于分析和设计系统（尤其是自测试系统）的重要意义。最后阐明了由可靠性指标确定故障检测率、进而确定系统自检周期的方法。
Aiming at repairable system, the concept of fault detection rate is proposed. A repairable k / n (G) voting system considering fault detection rate is studied. Firstly, the state transition diagram of the system is investigated. The Markov model of the system is established, and the transient and steady state analysis is carried out. A simplified algorithm of the state probability and availability of the system is proposed, and the computational complexity of the simplified and traditional algorithms is compared . The steady-state analysis results of several repairable k / n (G) voting systems are given, showing the importance of fault detection rates for analyzing and designing systems, especially self-test systems. Finally, the method of determining the fault detection rate by the reliability index and then determining the self-test cycle of the system is illustrated.