| 基于人工神经网络的大规模模拟电路故障诊断 |
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| 引用本文： | 张燕军,张彦斌,成娟娟.基于人工神经网络的大规模模拟电路故障诊断[J].兵工自动化,2007,26(4):71-73. |
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| 作者姓名： | 张燕军 张彦斌 成娟娟 |
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| 作者单位： | 军械工程学院火炮工程系,河北石家庄050003;山西北方惠丰机电有限公司,山西长治046012 |
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| 摘 要： | 大规模模拟电路故障诊断,先用定位向量初定位故障子网络,再用神经网络定位故障子网络元件级故障.诊断分测前和测后,测前先将每个子电路的各种故障情况用Multisim模拟,求得各可及节点电压并作为BP的训练样本,再对所测电压信号分别归一化处理,定义网络的故障定位向量.最后用BP网络分析故障特征,进行故障诊断.
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| 关 键 词： | 模拟电路 故障诊断 定位向量 人工神经网络 故障子网络 元件级故障 |
| 文章编号： | 1006-1576（2007）04-0071-03 |
| 收稿时间： | 2007-02-01 |
| 修稿时间： | 2007-03-10 |
Large-Scale Simulation Circuit Fault Diagnosis Method Based on Artificial Neural Network |
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| ZHANG Yan-jun,ZHANG Yan-bin,CHENG Juan-juan.Large-Scale Simulation Circuit Fault Diagnosis Method Based on Artificial Neural Network[J].Ordnance Industry Automation,2007,26(4):71-73. |
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| Authors: | ZHANG Yan-jun ZHANG Yan-bin CHENG Juan-juan |
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| Affiliation: | 1. Dept. of Artillery Engineering, Ordnance Engineering College, Shijiazhuang 050003, China; 2. Shanxi Beifang Huifeng Electromechanical co., Ltd, Changzhi, 046012, China |
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| Abstract: | Large-scale simulation circuit fault diagnosis,first position the fault sub-network by dint of orientation vectors,then position the component fault of fault sub-network by dint of neural network.The diagnosis is divided into before test and after test,before test diversified fault of every sub-network should be simulated with the help of Multisim;then gain the voltage of tested node and take it as training sample of BP;once more unitary dispose the tested voltage signal and define the fault orientation vectors of network.Finally analysis the fault character by dint of BP network and diagnosis fault. |
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| Keywords: | Simulation circuit Fault diagnosis Orientation vectors Artificial neural network Fault sub-network The component fault |
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