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Foreign matter intrusion detection method and system for power transmission line

A technology for transmission lines and foreign body intrusion, applied in the field of foreign body detection, can solve the problems of easy detection of foreign bodies, easy to cause misjudgment, etc., to avoid interference and improve the accuracy of foreign body detection.

Pending Publication Date: 2021-11-19
STATE GRID SHANDONG ELECTRIC POWER CO WEISHAN POWER SUPPLY CO +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the existing foreign object intrusion detection method based on deep learning is easy to detect foreign objects in the background, which may easily lead to misjudgment

Method used

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  • Foreign matter intrusion detection method and system for power transmission line
  • Foreign matter intrusion detection method and system for power transmission line
  • Foreign matter intrusion detection method and system for power transmission line

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0049] A method for detecting the intrusion of foreign matter in a power transmission line provided in this embodiment includes the following steps:

[0050] S1. Real-time acquisition of transmission line images through an image acquisition device.

[0051] Among them, the image acquisition device is a camera installed on the pole tower, the camera is set under the wire, and the angle of the camera is adjusted so that it can capture the installation positions of all wires on the adjacent tower, and the following is obtained: figure 2 The transmission line image shown.

[0052] S2. Perform a preprocessing operation on the acquired image of the transmission line to obtain and process the image, that is, perform grayscale processing, denoising processing, and binarization processing on the image of the transmission line in sequence.

[0053] The grayscale method is:

[0054] Gray(i,j)=0.299*R(i,j)+0.578*G(i,j)+0.114*B(i,j)

[0055] Among them, Gray(i, j) represents the gray v...

Embodiment 2

[0083] This embodiment provides a transmission line foreign object intrusion detection system, including:

[0084] An image acquisition module, which is configured to: acquire an image of a power transmission line in real time;

[0085] A preprocessing module configured to: perform a preprocessing operation on the acquired transmission line image;

[0086] The wire area image block acquisition module is configured to: perform expansion processing on the preprocessed image, and use Hough transform to extract straight line segments in the expanded image; select two straight lines with a length greater than a threshold and the farthest distance segment, and connected to form an initial segmentation frame; the initial segmentation frame is extended to obtain an extended segmentation frame, and the wire area image block is cut out from the preprocessed image according to the extended segmentation frame;

[0087] The foreign matter detection module is configured to: input the wire ...

Embodiment 3

[0089] This embodiment also provides an electronic device, including a memory, a processor, and computer instructions stored in the memory and run on the processor. When the computer instructions are executed by the processor, the steps of the method described in Embodiment 1 are completed. .

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Abstract

The invention discloses a foreign matter intrusion detection method and system for a power transmission line. The method comprises the steps of extracting a straight line segment in an image by utilizing Hough transform; and selecting two straight line segments with the length greater than a threshold value and the farthest distance, connecting the two straight line segments to form an initial segmentation frame, expanding the initial segmentation frame to obtain an expanded segmentation frame, cutting out a lead area image block from the preprocessed image according to the expanded segmentation frame, and inputting the lead area image block into a foreign matter intrusion detection model to obtain a foreign matter detection result. The region of interest is effectively selected before foreign matter intrusion detection, interference of foreign matters in the background is avoided, and the foreign matter detection precision is improved.

Description

technical field [0001] The invention belongs to the field of foreign object detection, and in particular relates to a method and system for detecting foreign object intrusion of a power transmission line. Background technique [0002] The statements in this section merely provide background information related to the present invention and do not necessarily constitute prior art. [0003] Foreign objects are entangled and suspended on the wires, which can easily cause tripping faults on the transmission line, and in severe cases may cause large-scale power outages. Therefore, the automatic detection of intruded foreign matter on the transmission line will help the staff to take corresponding solutions in time to ensure the normal operation of the transmission line. [0004] However, the existing foreign object intrusion detection method based on deep learning is easy to detect the foreign object in the background, which may lead to misjudgment. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K9/32G06T5/30G06T7/11G06T7/136
CPCG06T5/30G06T7/11G06T7/136G06T2207/20061G06T2207/20132G06T2207/20081
Inventor 姚素刚王成全彭文国邱峰董卫涛高涛屈然戴莉吴士伟王超
Owner STATE GRID SHANDONG ELECTRIC POWER CO WEISHAN POWER SUPPLY CO
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