| 复杂系统的诊断问题求解——一种基于知识的方法 |
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| 引用本文： | 郑小军,杨叔子,师汉民,周安法,马元镐,刘永长. 复杂系统的诊断问题求解——一种基于知识的方法[J]. 华中科技大学学报(自然科学版), 1988, 0(3) |
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| 作者姓名： | 郑小军 杨叔子 师汉民 周安法 马元镐 刘永长 |
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| 作者单位： | 华中理工大学机械工程一系,华中理工大学船舶与海洋工程系 |
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| 摘 要： | 本文提出了复杂系统的诊断问题求解的一般性概念并深化了文献[1]中的结论,即得到了更为有效的诊断策略与具体诊断方法,最后提出了一个基于知识的汽车发动机诊断系统。
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| 关 键 词： | 故障诊断 基于知识的系统 诊断问题求解 诊断策略 知识库 |
Diagnostic Problem Solving for Complex Systems |
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| Zheng Xiaojun Yang Shuzi Shi Hanmin Zhou Anfa Ma Yuanhao Li Yongchang. Diagnostic Problem Solving for Complex Systems[J]. JOURNAL OF HUAZHONG UNIVERSITY OF SCIENCE AND TECHNOLOGY.NATURE SCIENCE, 1988, 0(3) |
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| Authors: | Zheng Xiaojun Yang Shuzi Shi Hanmin Zhou Anfa Ma Yuanhao Li Yongchang |
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| Affiliation: | Zheng Xiaojun Yang Shuzi Shi Hanmin Zhou Anfa Ma Yuanhao Li Yongchang |
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| Abstract: | Some general concepts in diagnostic problem solving for complex systems are discussed. Based on the hierarchical principle, a new conceptual scheme consisting of a series of new concepts such as fault propagation, symptom, solution of a diagnostic problem, etc. is proposed. The modified multi-step diagnostic strategy is generalized, and a new one with three procedures, the fault detection, the hypothesis and hypotheses verification is suggested.A knowledge-based diagnosis system based on the Hierarchy Diagnostic Model for automobile engines is proposed. There are six task items: fault detection, fault diagnosis, repair consultant, reasoning and explanation, knowledge acquisition and knowledge base management, of which the second item is the most important. It is a modular structure and consists of an inference, a static knowledge base, a dynamic knowledge base and a working memory unit, the "blackboard". |
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| Keywords: | Fault diagnosis Knowledge-based system Diagnosis problem solving Diagnostic strategy Knowledge base. |
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