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Power equipment operation status monitoring method and system based on infrared images

A technology of infrared image and power equipment, applied in image enhancement, image analysis, image data processing, etc., can solve the problem that the processing effect is difficult to meet the expected requirements

Inactive Publication Date: 2017-11-24
STATE GRID SHANDONG ELECTRIC POWER +2
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  • Claims
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Problems solved by technology

[0006] At present, in China, the image processing method of visible light is usually used directly or slightly modified to process infrared images, and the processing effect is difficult to meet the expected requirements.

Method used

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  • Power equipment operation status monitoring method and system based on infrared images
  • Power equipment operation status monitoring method and system based on infrared images
  • Power equipment operation status monitoring method and system based on infrared images

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Embodiment approach

[0104] In some embodiments, the infrared image features include grayscale values.

[0105] In some embodiments, the infrared image feature further includes a grayscale threshold, and step (3) segments the infrared image according to the grayscale threshold.

[0106] The specific method may be: setting a certain grayscale threshold T for dividing the infrared image into two parts: a pixel group greater than T and a pixel group smaller than T. Let f(m,n) represent the grayscale image of the infrared image with a grayscale value, T is a grayscale threshold, and g(m,n) represents a binary image, then the segmentation result can be expressed as:

[0107]

[0108] When segmenting, it is necessary to determine a grayscale threshold T first, and use T to divide the grayscale image f(m,n) into two regions, the object and the background. In actual processing, for display purposes, 255 is generally used to represent the background, and 0 is used to represent the object.

[0109] Sin...

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Abstract

The invention discloses a power equipment operation status monitoring method based on infrared images. The method includes: (1) collecting the infrared images of power equipment; (2) determining infrared image features used to judge power equipment operation status; (3) dividing the infrared images according to the infrared image features; and (4) judging the power equipment operation status, which corresponds to the infrared images, according to a result of division. In addition, the invention also discloses a system. The system includes: infrared cameras; optical terminals, which convert the infrared images into a digital form; a server, which stores the infrared images which are from the optical terminals and in the digital form; a switch; and workstations, which read the infrared images, which are stored by the server and in digital form, through the switch, and execute the step (2) - the step (4) in the method. The method and the system of the invention combine digital technology to process the infrared images according to characteristics of the infrared images of the power equipment, and thus effectively monitor the operation status of the power equipment.

Description

technical field [0001] The invention relates to the field of electric equipment monitoring, in particular to a method and system for monitoring the operating state of electric equipment based on infrared images. Background technique [0002] With the continuous development of the national economy, my country's power system is developing towards a strong smart grid with UHV as the backbone and coordinated grids at all levels, and "self-healing" is one of the basic characteristics of smart grids. The so-called "self-healing" not only requires the power grid to be able to automatically and quickly isolate faults and restore power supply in sound areas, but also requires the ability to conduct online monitoring and safety warnings on the power grid, be able to detect faults in time and take measures to eliminate hidden dangers, so that the power grid can resume healthy operation and Avoid accidents. [0003] According to statistics, 70% of the faults in the power system are cau...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06T7/00G06T7/11G06T7/13G06T7/136
CPCG06T7/0004G06T7/11G06T7/13G06T7/136G06T2207/10048G06T2207/30164
Inventor 张卫国宋来森郭奇军陈晓东徐珂崔荣花邓乾成洪卫张福伟张允华朱中华盛戈皞
Owner STATE GRID SHANDONG ELECTRIC POWER
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