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Three-axis data acquisition system and acquisition method for pipeline magnetic flux leakage internal detector

An internal detector and three-axis data technology, which is applied in the field of pipeline magnetic flux leakage internal detection, can solve problems affecting detection accuracy and achieve the effects of improving detection accuracy, flexible program use, and practical methods

Inactive Publication Date: 2020-12-25
管网集团(新疆)联合管道有限责任公司
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Problems solved by technology

[0004] The invention provides a three-axis data acquisition system and acquisition method of a pipeline magnetic flux leakage internal detector, and its purpose is to solve the problem that the existing magnetic flux leakage detection technology has missed detection or false detection and affects the detection accuracy

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  • Three-axis data acquisition system and acquisition method for pipeline magnetic flux leakage internal detector
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  • Three-axis data acquisition system and acquisition method for pipeline magnetic flux leakage internal detector

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Embodiment 1

[0051] Such as figure 1 As shown, the present invention includes a system calling and processing main module, a three-axis acquisition sub-module of magnetic flux leakage signals, and a self-defined error value filtering and processing sub-module. The main module of system call and processing first sets ADTURN0, ADTURN1, ADTURN2, and the three storage areas, which are used to store the detection data of the X-axis, Y-axis, and Z-axis respectively; set the acquisition cycle times of the detector; call the magnetic flux leakage signal three The axis acquisition sub-module collects the three-axis detection data; the pointer R0 points to the ADTURN0 storage area, calls the custom error value filtering processing sub-module to perform software filtering on the X-axis data, and stores the filtered value in the X-axis data storage area of ​​the external memory. Pointer R1 points to the ADTURN1 storage area, calls the user-defined error value filter processing sub-module to perform so...

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Abstract

The invention relates to a three-axis data acquisition system for a pipeline magnetic flux leakage internal detector. The system comprises a calling and processing module, a magnetic flux leakage signal three-axis acquisition sub-module and a self-defined error value filtering processing sub-module, wherein the calling and processing module is responsible for calling and data processing of each sub-module through a single chip microcomputer; the magnetic flux leakage signal three-axis acquisition sub-module is used for acquiring data of three axes of the detector through three groups of sensors; and the self-defined error value filtering processing sub-module is used for performing filtering processing on detection data in three storage areas. According to the three-axis data acquisition system, synchronous real-time acquisition of pipeline three-axis magnetic flux leakage signals can be realized, and the acquired signals are filtered in real time through the self-designed self-definederror value filtering processing sub-module, so that more accurate damage area information is obtained, the pipeline damage identification rate is greatly increased, and the detection precision is improved.

Description

technical field [0001] The invention relates to the technical field of internal detection of pipeline magnetic flux leakage, in particular to a three-axis data acquisition system and acquisition method of a pipeline magnetic leakage internal detector, which is suitable for use in internal detection of long-distance natural gas pipelines. Background technique [0002] Magnetic flux leakage detection technology has the advantages of high reliability, easy automation, less external interference, and no need for couplant, and is widely used in the field of long-distance pipeline internal detection. However, the detection situation in oil and gas pipelines is complex, and the distribution of the pipeline damage magnetic field is uneven, resulting in detection signals in a single direction, often resulting in missed detection and false detection, which greatly affects the detection accuracy. Contents of the invention [0003] Purpose of the invention: [0004] The invention pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G05B19/042
CPCG05B19/0423G05B2219/24215
Inventor 闵希华杨理践吴锦强陈勇贾海东张贺刘剑罗宁徐春燕许光达慕进良赵康李坤
Owner 管网集团(新疆)联合管道有限责任公司
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