| 基于互测PMC模型的故障诊断方法及其应用 |
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| 引用本文： | 宣恒农,韩忠愿,张大方.基于互测PMC模型的故障诊断方法及其应用[J].电子学报,2007,35(5):987-990. |
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| 作者姓名： | 宣恒农 韩忠愿 张大方 |
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| 作者单位： | 1. 南京财经大学信息工程学院,江苏南京 210046;2. 湖南大学软件学院,湖南长沙 410082 |
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| 基金项目： | 江苏省自然科学基金，国家自然科学基金 |
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| 摘 要： | PMC模型是一种基于测试的系统级故障模型.针对传统诊断算法的弱点,作者于2003年建立起了PMC模型方程诊断算法的框架.本文的主要工作是:(1)对以往的理论进一步补充完善;(2)给出一个直接求绝对故障基的简便方法;(3)通过引入直和的概念,将高维PMC故障模型分拆成低维模型进行诊断;(4)举例说明方程诊断算法的应用.
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| 关 键 词： | 系统级故障诊断 PMC故障模型 方程诊断算法 相容故障模式 t-可诊断性 |
| 文章编号： | 0372-2112（2007）05-0987-04 |
| 收稿时间： | 2005-03-25 |
| 修稿时间： | 2005-03-252006-12-07 |
The Fault Diagnosis Algorithm and It's Application about PMC Model Based on Ex-Test |
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| XUAN Heng-nong,HAN Zhong-yuan,ZHANG Da-fang.The Fault Diagnosis Algorithm and It''''s Application about PMC Model Based on Ex-Test[J].Acta Electronica Sinica,2007,35(5):987-990. |
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| Authors: | XUAN Heng-nong HAN Zhong-yuan ZHANG Da-fang |
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| Affiliation: | 1. School of Information Engineering,Nanjing University of Finance and Economics,Nanjing,Jiangsu 210046,China;2. School of Software,Hunan University,Changsha,Hunan 410082,China |
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| Abstract: | PMC model is a kind of system-level fault model based on test.To counter the weakness in traditional diagnosis algorithm,we have set up a framework of equation diagnosis algorithm for PMC model in 2003.The chief works in this paper are as follows:(1)The past theorem is further replenished and complemented;(2)A simple and convenient method for directly getting absolute fault base is given;(3)By introducing the concept of direct sum,more dimensions PMC fault models are separated into less dimensions models to diagnosis;(4)Equation diagnosis algorithm's applications are illustrated by examples. |
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| Keywords: | system-level fault diagnosis PMC fault model equation diagnosis algorithm consistent fault pattem t-diagnosable |
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