Method for intelligently diagnosing thermal defects of high-voltage transmission line based on infrared image

A technology of high-voltage transmission lines and infrared images, applied in radiation pyrometry, measuring devices, instruments, etc., can solve problems such as unreliability and inaccuracy, and achieve the effect of eliminating the heat generation of automobiles and the influence of additional temperature rise

Inactive Publication Date: 2012-07-11
SHANGHAI UNIV
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Absolute temperature alarm limit temperature rise method: A temperature threshold is specified according to the wire type and load current. If the temperature exceeds this threshold, there may

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  • Method for intelligently diagnosing thermal defects of high-voltage transmission line based on infrared image
  • Method for intelligently diagnosing thermal defects of high-voltage transmission line based on infrared image
  • Method for intelligently diagnosing thermal defects of high-voltage transmission line based on infrared image

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Embodiment Construction

[0056] Preferred embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. This embodiment is carried out on the premise of the technical solution of the present invention, and detailed implementation is given, but the protection scope of the present invention is not limited to the following embodiments.

[0057] Such as figure 1 As shown, the applicable hardware environment of the infrared image intelligent detection method for thermal defects of high-voltage lines of the present invention can detect thermal defects in the working environment of helicopter inspection or vehicle inspection. The resolution of the infrared thermal imager is 320╳240 or 640╳480. The output interface of the infrared thermal imager is analog PAL / NTSC video data or digital network video stream. Each infrared grayscale image collected has a corresponding temperature image. Each time an infrared image is collected, infrared thermal de...

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Abstract

The invention relates to a method for intelligently diagnosing thermal defects of a high-voltage transmission line based on an infrared image, being a method for automatically detecting thermal defects of a transmission line in a shot infrared image in a sports mode. The method comprises the following operating steps of: 1, adopting parts in a clustering recognition line based on line object perception; effectively removing the influence of heating of automobiles running on the ground, ground heat sources and reflecting heat of pole towers in complex natural scenery to thermal defect diagnosis of lines; 2, and adopting a relative temperature difference method to diagnose whether the recognized line part has thermal defects, eliminating the influence of additional temperature rise due to solar radiation, and meanwhile reducing errors due to inaccurate parameters of detected distance, environmental temperature, humidity, wind speed and the like. According to the method, the efficiency of detection for the thermal defects of the transmission line can be effectively increased. The method is effectively applied to inspection business of vehicle-mounted or helicopter transmission lines.

Description

technical field [0001] The invention relates to a method for intelligently detecting thermal defects of high-voltage transmission lines based on infrared thermal images. In particular, it relates to a method for intelligently detecting thermal defects existing in transmission lines from captured infrared images in a moving state, and the method can effectively improve the efficiency of detecting thermal defects of transmission lines. This method can be effectively applied to vehicle or helicopter transmission line inspection business. Background technique [0002] The high-voltage transmission line is the artery of the power system. Its operating status directly determines the safety of the power system and the operation of the national economy. Infrared detection has the characteristics of long-distance, no power failure, no contact, and no disassembly. Thermal defects provide an advanced means for power system line condition monitoring. [0003] Infrared thermal imaging ...

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Application Information

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IPC IPC(8): G01R31/08G01J5/00
Inventor 韩军张书鸣朱国军马行汉
Owner SHANGHAI UNIV
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