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针对目前大部分序贯多故障诊断算法需要计算最小碰集、计算方法较为复杂的问题,在对多故障相关矩阵模型进行转换的基础上,利用Rollout算法对基于信息熵的多故障诊断策略进行优化,提出一种新的多故障诊断策略.实例计算结果表明,与现有算法相比,所提出方法的期望测试费用更低,且具有先测试后修复的特点,在实际工程中更便于操作.
Aiming at the problem that most sequential multi-fault diagnosis algorithms need to calculate the minimum collision and the calculation method is complicated at present, Rollout algorithm is used to optimize the multi-fault diagnosis strategy based on information entropy based on the conversion of multi-fault correlation matrix model. , A new multi-fault diagnosis strategy is proposed.Experimental results show that compared with the existing algorithms, the proposed method has a lower expected test cost and has the characteristics of pre-test and post-test repair, which is easier to operate in practical projects.