| 基于D-S证据理论的数据融合算法及其在电路故障诊断中的应用 |
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| 引用本文： | 朱大奇,于盛林.基于D-S证据理论的数据融合算法及其在电路故障诊断中的应用[J].电子学报,2002,30(2):221-223. |
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| 作者姓名： | 朱大奇 于盛林 |
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| 作者单位： | 1. 南京航空航天大学测试工程系,江苏南京 210016;2. 安徽工业大学工业自动化系,安徽马鞍山 243002 |
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| 基金项目： | 国家自然科学基金 (No .596770 2 1 )，安徽省教委自然科学基金 (No .2 0 0 0JI1 74) |
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| 摘 要： | 本文在D-S证据理论的基础上,结合模糊集合论,给出了电子电路故障定位的多传感器数据融合方法.通过测试电路中的被诊断元件的工作温度和工作电压两个物理量,得出D-S证据理论中两传感器对各待诊断元件的信度函数分配,再利用D-S联合规则得到融合后的信度函数分配,从而确定故障元件,并通过单传感器诊断结果与融合诊断结果比较,说明多传感器融合的优越性.
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| 关 键 词： | D-S证据理论 信度函数 数据融合 故障诊断 |
| 文章编号： | 0372-2112(2002)02-0221-03 |
| 收稿时间： | 2001-02-19 |
Data Fusion Algorithm Based on D-S Evidential Theory and Its Application for Circuit Fault Diagnosis |
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| ZHU Da qi ,YU Sheng lin.Data Fusion Algorithm Based on D-S Evidential Theory and Its Application for Circuit Fault Diagnosis[J].Acta Electronica Sinica,2002,30(2):221-223. |
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| Authors: | ZHU Da qi YU Sheng lin |
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| Affiliation: | 1. Nanjing University of Aeronautics and Astronautics,Department of Testing and Measurement Engineering,Nanjing,Jiangsu 210016,China;2. Auhui University of Technology,Industrial Automation Department,Maanshan,Anhui 243002,China |
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| Abstract: | A data fusion method for circuit fault diagnosis based on D S evidential theory and fuzzy logical theory is presented.By measuring the temperature and voltage of circuit component,the belief function assignment of two sensors to circuit component is gotten,and the fusion belief function assignment is gotten by using D S rule,and fault component is found.By comparing the diagnosis results based on separate original data and fused data respectively,it is shown that the latter is more accurate than the former in the circuit fault recognition. |
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| Keywords: | D S evidential theory belief function data fusion fault diagnosis |
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