| 基于规则获取的Petri网诊断模型设计 |
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| 引用本文： | 赵熙临,周建中,刘辉.基于规则获取的Petri网诊断模型设计[J].计算机工程与设计,2008,29(5):1222-1225. |
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| 作者姓名： | 赵熙临 周建中 刘辉 |
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| 作者单位： | 1. 华中科技大学,水电与数字化工程学院,湖北,武汉,430074;湖北工业大学,电气与电子工程学院,湖北,武汉,430068
2. 华中科技大学,水电与数字化工程学院,湖北,武汉,430074 |
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| 摘 要： | 通过旋转机械故障诊断规则的获取分析,讨论了利用诊断规则设计Petri网诊断模型的方法.该模型的设计建立在简化的样本集基础上,可有效降低Petri网的复杂程度,避免Petri网在复杂系统建模时出现的组合爆炸问题;针对诊断规则的形式,定义并提出将诊断规则转换为标准基本规则序列,便于模型的程序化设计;同时诊断规则的获取可以有效推广故障诊断范围,使其不仅仅局限于样本集,并能消除样本集中存在的不一致问题带来的影响.通过示例证明了这种方法的可行性与有效性,并给出了相关算法.
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| 关 键 词： | 故障诊断 Petri网 粗糙集 诊断规则 模型 |
| 文章编号： | 1000-7024(2008)05-1222-04 |
| 修稿时间： | 2007年3月27日 |
Design of Petri nets model for fault diagnosis based on rule generation |
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| ZHAO Xi-lin,ZHOU Jian-zhong,LIU Hui.Design of Petri nets model for fault diagnosis based on rule generation[J].Computer Engineering and Design,2008,29(5):1222-1225. |
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| Authors: | ZHAO Xi-lin ZHOU Jian-zhong LIU Hui |
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| Affiliation: | ZHAO Xi-lin1,2,ZHOU Jian-zhong1,LIU Hui1,2(1.College of Hydropower , Information Engineering,Huazhong University of Science , Technology,Wuhan 430074,China,2.School of Electrical , Electronic Engineering,Hubei University of Technology,Wuhan 430068,China) |
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| Abstract: | The method of Petri nets model design based on rule generation about rotating machinery fault diagnosis is analyzed.The design of the model is based on the reduced swatch set to abate the complexity of the Petri nets,which can avoid the matter that combina-torial states expand quickly because of the complexity of the system.For the programmable design of the model,all diagnostic rules are transformed to a series of basic rule.The method of rule generation can extend the range of the diagnostic case,not only... |
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| Keywords: | fault diagnosis Petri nets rough set diagnostic rule model |
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