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基于容错技术设计的民用机载系统可以达到高可靠性,而采用了大量的冗余配置及重构技术,使得该可靠性模型往往变得相当复杂。传统的故障树分析方法已经不适用。利用半马尔可夫过程理论对基于容错技术设计的机载系统进行可靠性建模,并对系统可靠性模型进行必要的化简,可以减少许多计算量并使该模型更加符合实际使用要求。
Civil airborne systems based on fault-tolerant technology are designed to achieve high reliability with a large number of redundant configurations and reconfiguration techniques that make the reliability model quite complex. The traditional method of fault tree analysis does not apply. Semi-Markov process theory is used to model the reliability of airborne systems based on fault-tolerant technology. The system reliability model is simplified as necessary to reduce the computational load and make the model more in line with the practical requirements.