Data compression method for collecting rolling bearing vibration signals

doi:10.13465/j.cnki.jvs.2015.23.002

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	Data compression method for collecting rolling bearing vibration signals
	Guo, Jun-Feng; Shi, Jian-Xu; Lei, Chun-Li; Wei, Xing-Chun
刊名	Zhendong yu Chongji/Journal of Vibration and Shock
	2015-12-15
卷号	34 期号:23 页码:8-13
关键词	Compressed sensing Data compression ratio Data handling Digital storage Matrix algebra Roller bearings Signal reconstruction Signal sampling Measurement matrix Nyquist sampling theorem Optimized measurement matrixes Orthogonal matching pursuit Rolling bearing vibration Rolling bearings Structure information Vibration signal
ISSN号	10003835
DOI	10.13465/j.cnki.jvs.2015.23.002
英文摘要	Aiming at that frequency band of rolling bearing vibration signals is getting wider, with the traditional Shannon-Nyquist sampling theorem for data collection, a huge amount of data will be obtained to cause difficulties of storage, transmission and processing, a data compression and acquisition method was proposed here. Firstly, the sparsity or compressibility of vibration signals based on Fourier bases in the orthogonal dictionary was analysed, then the sparse structure information of vibration signals was mixed into the design of the measurement matrix, the optimized measurement matrix was gained and the compression measurement was done. Finally, based on the compression measurements, the orthogonal matching pursuit algorithm was used to reconstruct the original vibration signals. Through simulation tests, the results showed that the proposed method can get a higher signal compression ratio and have a precise signal reconstruction performance; in the condition without losing vibration information, the data amount of the original vibration can be reduced greatly. © 2015, Chinese Vibration Engineering Society. All right reserved.
语种	中文
出版者	Chinese Vibration Engineering Society
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/112353]
专题	机电工程学院
作者单位	School of Mechanical and Electronic Engineering, Lanzhou University of Technology, Lanzhou; 730050, China
推荐引用方式 GB/T 7714	Guo, Jun-Feng,Shi, Jian-Xu,Lei, Chun-Li,et al. Data compression method for collecting rolling bearing vibration signals[J]. Zhendong yu Chongji/Journal of Vibration and Shock,2015,34(23):8-13.
APA	Guo, Jun-Feng,Shi, Jian-Xu,Lei, Chun-Li,&Wei, Xing-Chun.(2015).Data compression method for collecting rolling bearing vibration signals.Zhendong yu Chongji/Journal of Vibration and Shock,34(23),8-13.
MLA	Guo, Jun-Feng,et al."Data compression method for collecting rolling bearing vibration signals".Zhendong yu Chongji/Journal of Vibration and Shock 34.23(2015):8-13.