基于信息熵的诊断策略优化方法
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摘要
针对现有二值测试诊断策略优化技术无法解决多值测试且测试精度不高的复杂诊断问题,提出多值测试下基于信息熵的诊断策略优化方法。从考虑和不考虑测试过程中可能出现的虚警与漏检2种情况对优化方法进行分析,在2个繁杂程度不同的实例系统上进行仿真验证,并用该算法与AO*算法进行对比。结果表明:该方法在不增高测试费用的同时大大缩短测试时间,结果符合理论预期。
The complex diagnostic problems that the existing binary test diagnostic strategy optimization technology can't solve the multi-value test and the test accuracy is low, the optimization strategy based on information entropy under multi-value test is proposed. The optimization method is analyzed from considering or non-considering false alarm and missed detection which may occur during the test. The simulation is verified on two different instance systems with different degrees of complexity, and the algorithm is compared with the AO* algorithm. The results show that the method has the characteristics of not increasing the test cost and greatly reducing the test time. The result is in line with the theoretical expectation.
The complex diagnostic problems that the existing binary test diagnostic strategy optimization technology can't solve the multi-value test and the test accuracy is low, the optimization strategy based on information entropy under multi-value test is proposed. The optimization method is analyzed from considering or non-considering false alarm and missed detection which may occur during the test. The simulation is verified on two different instance systems with different degrees of complexity, and the algorithm is compared with the AO* algorithm. The results show that the method has the characteristics of not increasing the test cost and greatly reducing the test time. The result is in line with the theoretical expectation.
引文
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[14]黄以锋,景博,茹常剑.基于信息熵的多值属性系统诊断策略优化方法[J].仪器仪表学报,2011,32(5):1003-1008.
[2]PATTIPATI K R,ALEXANDRIDIS M G.Approach of heuristic search and information theory to sequential fault Diagnosis[J].IEEE Trans on Systems,Man and Cybernetics,1990,20(4):872-887.
[3]RAGHAVAN V,SHAKERI M,PATTIPATI K R.Sequential testing algorithms for multiple fault diagnosis[J].IEEE Trans on Systems,Man and Cybernetics,2000,30(1):1-14.
[4]WANG H X,PANG H B,YE X H.Research on test sequence problem for multiple fault diagnosis[J].Acta Armamentarii,2011,32(12):1518-1523.
[5]杨智勇,许化龙,许爱强.基于多信号模型的故障诊断策略设计[J].计算机测量与控制,2006,14(2):1616-1619.
[6]景小宁,李全通,陈云翔.基于信息熵的最少测试费用故障诊断策略[J].计算机应用,2005,25(2):417-419.
[7]GAO L,ZENG G Z.Dynamic testing algorithm based on rough sets for multiple fault diagnosis[C].2008:157-163.
[8]陈刚勇.复杂系统分层诊断策略优化技术研究[D].长沙:国防科技大学,2011:28-38.
[9]杨鹏,邱静,刘冠军.基于多值测试的诊断策略优化生成[J].仪器仪表学报,2012:34-37.
[10]BOUMEN R,RUAN S,JONG I.Hierarchical test Sequencing for complex systems[J].IEEE Trans on Systems,Man and Cybernetics,2009,39(3):640-649.
[11]RUAN S,TU F,PATTIPATI K R.On a multimode test sequencing problem[J].IEEE Trans on Systems,Man and Cybernetics,2004,34(3):1490-1499.
[12]WANG W,HU Q H,YU X.Optimal method for fault diagnosis strategy with multi-value attribute system[J].Chinese J of Scientific Instrument,2008,29(5):1073-1078.
[13]连光耀.基于信息模型的装备测试性设计及分析方法研究[D].石家庄:军械工程学院,2007:16-27.
[14]黄以锋,景博,茹常剑.基于信息熵的多值属性系统诊断策略优化方法[J].仪器仪表学报,2011,32(5):1003-1008.