中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
传感器信号特征提取和故障诊断研究

文献类型:会议论文

作者单玉刚; 胡卫国; 王宏; 袁杰
出版日期2012
会议名称2012 31th Chinese Control Conference
会议日期July 25-27, 2012
会议地点Hefei, China
关键词核fisher DAGSVM 传感器故障 模极大值
页码5412-5417
其他题名Research of Feature Extraction and Fault Diagnosis for Sensor Signal
中文摘要提出一种综合的传感器信号特征提取和故障诊断方法。利用小波包三层分解传感器信号提取各个频带的能量以及信号的模极大值构成初始特征,使用核Fisher方法将原始特征空间映射到高维特征空间,增强了样本可分性。采用可分性判别准则组织多个两分类支持向量机(SVM),构成优化的有向无环图支持向量机(DAGSVM)多分类器判别传感器状态。将该方法应用到FDT/DTM(Field device tool/device type manager)设备管理系统中,对NCS4000水循环控制系统的压力传感器进行故障诊断,数值实验表明该算法具有实效性。
英文摘要The paper presents an integrated approach of feature extraction and fault diagnosis of sensor.Taking the sensor signal energies and modulus maxima of wavelet packet decomposition in three bands as initial features,valid features are extracted according to kernel fisher transform of initial feature vector,enhancing the signal characteristics.In accordance with inter-class separability a set of binary SVM classifiers are combined to construct optimal Decision Directed Acyclic Graph. The approach is applied to...
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会议主办者Technical Committee on Control Theory,Chinese Association of Automation
会议录Proceedings of the 31st Chinese Control Conference
会议录出版者Chinese Association of Automation
会议录出版地Beijing
语种中文
源URL[http://ir.sia.cn/handle/173321/10248]  
专题沈阳自动化研究所_工业控制网络与系统研究室
推荐引用方式
GB/T 7714
单玉刚,胡卫国,王宏,等. 传感器信号特征提取和故障诊断研究[C]. 见:2012 31th Chinese Control Conference. Hefei, China. July 25-27, 2012.

入库方式: OAI收割

来源:沈阳自动化研究所

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