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Barkhausen signal characteristic acquisition method and device, terminal and storage medium

A technology of signal characteristics and acquisition methods, which is applied in the field of signal processing, can solve problems such as large stress test errors, and achieve the effects of solving large errors, improving accuracy, and improving accuracy

Active Publication Date: 2019-10-29
GUANGDONG POWER GRID CO LTD +1
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Problems solved by technology

[0004] The present application provides a Barkhausen signal feature acquisition method, device, terminal and storage medium, which are used to solve the existing technical problem of large errors in stress testing based on the Barkhausen effect

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  • Barkhausen signal characteristic acquisition method and device, terminal and storage medium
  • Barkhausen signal characteristic acquisition method and device, terminal and storage medium
  • Barkhausen signal characteristic acquisition method and device, terminal and storage medium

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Embodiment Construction

[0050]Embodiments of the present application provide a Barkhausen signal feature acquisition method, device, terminal, and storage medium, which are used to solve the existing technical problem of large error in stress testing based on the Barkhausen effect.

[0051] At present, through the Barkhausen effect (Magnet Barkhausen Effect, MBE) produced by the tower material of the transmission tower under the action of the magnetic field, the Barkhausen noise (Magnetic Barkhausen Noise, MBN) released by the ferromagnetic material under the alternating magnetic field is used to measure the noise of the tower material. The stress is large, but Barkhausen noise is a high-frequency noise signal. When using it, it is more reasonable to extract a peak or envelope peak of the MBN signal as the eigenvalue for calculation, but its waveform has obvious randomness. , the wave crest fluctuates greatly, which leads to the technical problem of large error in the existing stress test based on the...

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Abstract

The invention discloses a Barkhausen signal characteristic acquisition method and device, a terminal and a storage medium. The method comprises the following steps: dividing a high-frequency noise signal into multiple signal segments based on the zero point of a low-frequency sine signal, performing signal superposition on the adjacent signal segments and performing superposition meaning on a signal crest value, wherein the crest drastic fluctuation caused by the randomness of the noise signal is smoothened, thereby improving the accuracy of the characteristic value extraction, and then improving the accuracy of the stress test. And the technical problem that the existing Barkhausen effect is large in stress testing error is solved.

Description

technical field [0001] The present application relates to the technical field of signal processing, and in particular to a Barkhausen signal feature acquisition method, device, terminal and storage medium. Background technique [0002] Transmission line is an important infrastructure for power transmission, and its safety is related to the stable operation of the entire power grid. Among them, the safety of the transmission tower is an extremely important part of the transmission line. Therefore, it is necessary to carry out stress detection on the transmission tower from time to time to prevent the collapse accident caused by the excessive load of the transmission tower. [0003] At present, through the Barkhausen effect (Magnet Barkhausen Effect, MBE) produced by the tower material of the transmission tower under the action of the magnetic field, the Barkhausen noise (Magnetic Barkhausen Noise, MBN) released by the ferromagnetic material under the alternating magnetic fiel...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/12G01L5/00
CPCG01L1/12G01L5/0047
Inventor 罗啸宇聂铭谢文平雷旭肖凯
Owner GUANGDONG POWER GRID CO LTD
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