| 分层顺序测试优化方法研究 |
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| 引用本文： | 陈刚勇,杨鹏,邱静,刘冠军. 分层顺序测试优化方法研究[J]. 计算机集成制造系统, 2009, 15(1) |
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| 作者姓名： | 陈刚勇 杨鹏 邱静 刘冠军 |
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| 作者单位： | 国防科学技术大学机电工程研究所,湖南,长沙,410073;国防科学技术大学机电工程研究所,湖南,长沙,410073;国防科学技术大学机电工程研究所,湖南,长沙,410073;国防科学技术大学机电工程研究所,湖南,长沙,410073 |
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| 摘 要： | 针对复杂层次系统的故障隔离问题.提出了一种分层顺序测试优化方法.首先基于层次系统故障与测试之间的关联关系,以及故障与不同层级可更换单元的隶属关系,结合故障的先验概率与可用测试成本,构造了层次系统故障隔离问题的数学描述模型;然后以信息增益为启发策略,提出了一种准多步前向搜索算法,实现了不同隔离级的测试顺序优化.经某型卫星电源系统试验验证结果表明,该方可显著提高层次系统的故障隔离效率.
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| 关 键 词： | 层次系统 测试性设计 分层顺序测试 启发式函数 搜索算法 故障诊断 |
Optimization method of hierarchical sequential testing |
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| CHEN Cang-yong,YANG Peng,QIU Jing,LIU Guan-jun. Optimization method of hierarchical sequential testing[J]. Computer Integrated Manufacturing Systems, 2009, 15(1) |
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| Authors: | CHEN Cang-yong YANG Peng QIU Jing LIU Guan-jun |
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| Affiliation: | Institute of Mechatronical Engineering;National University of Defense Technology;Changsha 410073;China |
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| Abstract: | Aiming at the problem of fault isolation in hierarchical systems,an optimization method of hierarchical sequential testing was presented.Firstly,a mathematic model was constructed to deal with fault isolation.This model mainly considered the associations among fault sources and available testing of hierarchical system,the affiliation of faults with replaceable units in different levels,the prior probability of fault sources and the available testing costs.Secondly,a quasi multi-step look-ahead search algori... |
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| Keywords: | hierarchical systems design for testability hierarchical sequential testing heuristic function search algorithm fault detection |
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