Pipeline defect detection and location method based on multi-sensor information fusion
A positioning method and pipeline inspection technology, which is applied to measuring devices, instruments, manufacturing computing systems, etc., can solve problems such as the inability to achieve precise positioning of pipeline defects, and achieve the effects of improving accuracy, ensuring accuracy, and reducing workload
Active Publication Date: 2022-08-05
UNIV OF ELECTRONICS SCI & TECH OF CHINA +1
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[0005] The purpose of the present invention is to overcome the problem that the precise positioning of pipeline defects cannot be realized in the prior art, and to provide a pipeline defect detection and positioning method based on multi-sensing information fusion
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[0060] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.
[0061] In the description of the present invention, it should be noted that "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. The indicated direction or positional relationship is based on the direction or positional relationship described in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the indicated device or element must have a specif...
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The invention discloses a pipeline defect detection and positioning method based on multi-sensor information fusion, and belongs to the technical field of pipeline non-destructive testing. The pipeline is segmented according to pipeline defect detection signals and / or three-axis attitude signals of pipeline detection equipment in the pipeline. Process, locate the pipeline defect signal in the pipeline defect detection signal to the corresponding state pipeline section; according to the running speed, three-axis attitude signal and mileage information of the pipeline detection equipment in the corresponding state pipeline section, calculate the pipeline defect signal in each state. The location in the pipe segment. The invention can preliminarily locate the pipeline defect in a certain state pipeline section by segmenting the pipeline, and further calculate the defect in the current state according to the running speed, attitude parameter signal and mileage information of the pipeline detection equipment in the pipeline section in the current state. The position of the pipeline section can eliminate the cumulative error caused by the defect location based solely on the mileage information, and realize the precise location of the pipeline defect.
Description
technical field [0001] The invention relates to the technical field of pipeline non-destructive testing, in particular to a pipeline defect detection and positioning method based on multi-sensor information fusion. Background technique [0002] After years of operation, pipelines are prone to cracking, corrosion, deformation and other defects, which seriously affect the stability and reliability of their operation, and are more likely to cause safety accidents. Therefore, regular inspection of pipelines is the basis for ensuring the effective operation of pipelines. As a detection technology that does not damage the measured object, non-destructive testing technology can ensure the safe service of the equipment structure, and is one of the current mainstream testing technologies. [0003] Eddy current testing is a non-destructive testing method based on the development of electromagnetic induction theory. Its working principle is: when alternating current is applied to the e...
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IPC IPC(8): G01D21/02G01C25/00G01C21/20
CPCG01C21/10G01C21/188G01C22/00G01N27/90Y02P90/30
Inventor 高斌徐和武杨雨沛谌梁姜世强张勇孙鹏罗飞
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA