| 多Agent信息融合的故障诊断技术 |
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| 引用本文： | 刘明,李伟华,严建峰. 多Agent信息融合的故障诊断技术[J]. 计算机工程与应用, 2008, 44(34): 204-207. DOI: 10.3778/j.issn.1002-8331.2008.34.063 |
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| 作者姓名： | 刘明 李伟华 严建峰 |
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| 作者单位： | 西北工业大学计算机学院,西安,710072;西北工业大学计算机学院,西安,710072;西北工业大学计算机学院,西安,710072 |
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| 摘 要： | 在故障诊断中引入多Agent并行推理、独立求解的机制能够提高诊断准确率。通过特征提取降低特征维数，形成子任务，并分配给具有专家能力的Agent处理。然而多数情况下不同Agent的诊断结论会存在差异，为解决该问题，引入D-S证据理论将各Agent的结论作为多源证据进行融合。在融合中引入可信度分配矩阵表征Agent能力。最后通过一个诊断实例说明了此方法，通过仿真对比实验验证了此方法的有效性。
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| 关 键 词： | 多Agent 特征降维 D-S证据理论 可信度分配矩阵 |
| 收稿时间： | 2008-03-24 |
| 修稿时间： | 2008-6-19 |
Fault diagnosis technology based on multiagent classifier combination |
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| LIU Ming,LI Wei-hua,YAN Jian-feng. Fault diagnosis technology based on multiagent classifier combination[J]. Computer Engineering and Applications, 2008, 44(34): 204-207. DOI: 10.3778/j.issn.1002-8331.2008.34.063 |
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| Authors: | LIU Ming LI Wei-hua YAN Jian-feng |
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| Affiliation: | School of Computer Science，Northwestern Polytechnical University，Xi’an 710072，China |
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| Abstract: | Introduction of Multi-Agent parallel reasoning and independent solving mechanism can improve the accurate rate of fault diagnosis system.Feature extraction is used to reduce dimension and generate sub-tasks for Agents with corresponding abili-ties.However,in most cases the conclusions given by different diagnosis Agents will be different.In order to solve the problem,D-S evidence theory is applied to integrate conclusions given by multiple agents as multi-source evidence.Information credibility distribution matrix is introduced to denote Agent capacity in integration process.Finally,a diagnosis of examples is given to vali-date the method and simulation experiments verify the effectiveness of this method. |
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| Keywords: | multiagent feature dimension reduction D-S evidence theory credibility distribution matrix |
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