Electric equipment abnormal heating detection method based on infrared inspection video data of power line inspection

A technology of power equipment and video data, applied in the field of infrared video image processing, can solve the problems of inability to extract the complete area of ​​the object, discontinuity of power equipment, inapplicability, etc., and achieve the effect of avoiding possible influence, high degree of automation and high integrity

Active Publication Date: 2013-11-27
ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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Problems solved by technology

[0005] However, inter-frame difference for target detection has the following disadvantages: 1. It is not applicable to the situation where the target and the background are not moving but the detector is moving, and the complete area of ​​the object cannot be extracted
[0007] However, due to the characteri

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  • Electric equipment abnormal heating detection method based on infrared inspection video data of power line inspection
  • Electric equipment abnormal heating detection method based on infrared inspection video data of power line inspection
  • Electric equipment abnormal heating detection method based on infrared inspection video data of power line inspection

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Embodiment Construction

[0050] The theoretical basis of the method for detecting abnormal heating of electric power equipment based on infrared inspection video data of electric power inspection lines in the present invention is as follows:

[0051] In the process of image stitching, a unified object-space coordinate system is established. Therefore, the background information of two adjacent frames is overlapped after splicing, but the information of electrical equipment is not completely overlapped because it is far away from the object space. Based on this, the inter-frame difference is performed on the basis of splicing, and the previous frame data is subtracted from the subsequent frame data from the overlapping area after splicing, so that most of the background information will be eliminated, but the transmission line information is still retained. down. The splicing method adopted is as follows: the scale-invariant feature of the image is extracted based on the SURF descriptor, and the matchi...

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Abstract

The invention discloses an electric equipment abnormal heating detection method based on infrared inspection video data of power line inspection. The method comprises the following steps: an infrared video is used to capture the electric equipment to get an infrared sequence image frame of the electric equipment; an image is pre-processed; the pre-processed image is classified; an electric tower sequence image undergoes image segmentation so that images of an electric tower body, an insulator, a grounding line and electric tower fittings are segmented from the electric tower sequence image; the electric tower body, the insulator, the grounding line and the electric tower fittings in the image are extracted and positioned; insulator, grounding and the electric tower fittings; the electric tower body, the insulator, the grounding line and the electric tower fittings are diagnosed to obtain a fault diagnosis result; temperature outliers are marked out; and a fault diagnosis result report is generated according to the fault diagnosis results for human auxiliary judgment. The method of the invention does not need too much threshold setting, and is high in automation degree and high in efficiency.

Description

technical field [0001] The invention belongs to the technical field of infrared video image processing applied to power line inspection, and specifically refers to a method for detecting abnormal heating of power equipment based on power line inspection infrared inspection video data. Background technique [0002] The automatic power equipment target detection technology is the key technology in the abnormal heating diagnosis process of power line inspection infrared video. This is discussed in many technical documents and research papers on fault diagnosis based on infrared images, Huangqiang. Research on HV-Power Equipment Diagnosis by Infrared Image Edge Detection, Power and Energy Engineering Conference, [c], 2009, .APPEEC2009 .Asia-Pacific.APPEEC2009.Asia-Pacific; Mohd Shawal Jadin.Recent progress in diagnosing the reliability of electrical equipment by using infrared thermography[J]Infrared Physics&Technology, 2012Vol.55No.4. Zhang Yue, Electrical Equipment Based on In...

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Application Information

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IPC IPC(8): G06K9/60
Inventor 彭向阳陈驰麦晓明邓超怡王柯杨必胜陈锐民
Owner ELECTRIC POWER RES INST OF GUANGDONG POWER GRID
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