Graded compression method for magnetic flux leakage data of pipeline based on compressed sensing
A technology for compressing data and compression methods, which is applied in pipeline systems, material magnetic variables, gas/liquid distribution and storage, etc., and can solve problems such as long time consumption and low compression ratio
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[0058] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0059] The purpose of the present invention is to provide a hierarchical compression method for pipeline magnetic flux leakage data based on compressed sensing, realize self-adaptive compression of pipeline magnetic flux leakage data, and improve the data collection of pipeline magnetic flux leakage defect detection system through reasonable compression of pipeline magnetic flux leakage data The storage speed, defect detection speed and magnetic flux leakage data display speed ensure that all kinds of defect information in the magnetic flux leakage data are completely preserved while completing the maximum compression of the magnetic flux leakage data.
[0060] Such as figure 1 As shown, it is a flow chart of the compressive sensing-based pipeline magnetic leakage data hierarchical compression method of the present invention. The present invention firs...
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