计算机科学 ›› 2016, Vol. 43 ›› Issue (Z11): 21-25.doi: 10.11896/j.issn.1002-137X.2016.11A.005
周奚,薛善良
ZHOU Xi and XUE Shan-liang
摘要: 综合粗糙集理论和人工神经网络的优点,提出了改进的粗糙集理论算法,并结合人工神经网络,实现了一种无线传感器网络(Wireless Sensor Network,WSN)节点智能故障诊断方法。首先基于WSN的应用环境和故障特征的分析,通过数据采集、数据预处理和数据压缩来获得诊断决策表,并利用粗糙集中改进的归纳属性约简算法(Improved Inductive Attribute Reduction Algorithm,IIARA)对决策表进行属性约简,从而提取对故障诊断贡献最大的最小故障诊断特征集合,进而确定后端径向基函数神经网络(Radial Basis Function Neural Network,RBFNN)的拓扑结构。最后通过网络训练建立故障征兆与故障类型之间的非线性映射关系,得到诊断结果。仿真实验结果显示,该诊断算法在对WSN节点进行故障诊断时,可以有效地减少网络输入层个数,简化神经网络结构,减少网络的训练时间,提高模型的诊断准确性。
[1] 朱大奇,史惠.人工神经网络原理及应用[M].北京:科学出版社,2006:33-56 [2] 韩力群.人工神经网络教程[M].北京:北京邮电学院出版社,2006 [3] Zhu Liang,He Fei,Tong Yi-fei,et al.Fault detection and diagnosis of belt weigher using improved DBSCAN and Bayesian regularized neural network[J].Mechanika,2015,21(1):70 [4] Tayyab W,Mustafa D,Cemal K.Fault Diagnosis on Bevel Gearbox with Neural Networks and Feature Extraction[J].Electronics & Electrical Engineering,2015,21(5):69-74 [5] Xiong Guo-jiang,Shi Dong-yuan,Chen Jin-fu,et al.Divisionalfault diagnosis of large-scale power systems based on radial basis function neural network and fuzzy integral[J].Electric Power Systems Research,2013,105:9-19 [6] 熊国江,石东源,朱林,等.基于径向基函数神经网络的电网模糊元细胞故障诊断[J].电力系统自动化,2014,8(5):59-65 [7] Yan Jun,Jiang Xun-lin,Cheng Hai-song,et al.A hybrid training method for ANNs and its application in multi faults diagnosis of rolling bearing[J].Journal of Vibroengineering,2015,17(7):3538-3550 [8] Pawlak Z.Rough sets [J].International Journal of Computer and InformationScience,1982,11(5):341-355 [9] Akyildiz I F,Su W,Sankarasubramaniam Y.Wireless sensor net-works:a survey[J].Computer Networks,2002,38(4):393-422 [10] 孙利民,李建中,陈渝,等.无线传感器网络[M].北京:清华大学出版社,2008 [11] Noury N,Herve T,Riale V,et al.Monitoringbehavior in home using a smart fail sensor[C]∥IEEE-EMBS Special Topic Conference on Microtechnologies in Medicine and Biology.Lyon:IEEE Computer Society,2000:607-610 [12] Basile C,Gupta M,et al.An approach for detecting and distinguishing errors versus attacks in sensor networks [C]∥Proceedings of the 2006 International Conference on Dependable Systems and Networks.2006:474-484 [13] 王国胤.粗糙集理论与知识获取[M].西安:西安交通大学出版社,2001:1-155 [14] 尚志信,周宇.基于粗糙集和BP神经网络算法的网络故障诊断模型研究[J].宁波大学学报(理工版),2013,6(2):45-48 |
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