Insulator detection UAV and method based on infrared thermal image and visible light

Abstract

The invention discloses an insulator detection UAV and method based on an infrared thermal image and visible light, and relates to the technical field of power transmission and transformation line maintenance equipment. The insulator detection UAV comprises a UAV, a detection module, a wireless transmission module, and a ground station. The UAV is used to control the detection module to move around an insulator string in the air. The detection module includes an infrared camera and a visible light camera, and the wireless transmission module includes a sky-side wireless transceiver unit and aground-side wireless transceiver unit. The ground station is connected with the ground-side wireless transceiver unit, and includes a degradation analysis unit, a damage analysis unit and a pollutionlevel identification unit, and analyzes whether the insulator string has internal deterioration and external damages or not, and identifies the pollution level of the insulator. The UAV can realize long-distance non-contact charging detection of the internal deterioration, external damage and pollution level of the insulator string, improves the detection efficiency and accuracy, improves the safety of the testing personnel and reduces the working intensity.

Description

technical field [0001] The invention relates to the technical field of maintenance equipment for power transmission and transformation lines, in particular to an insulator detection drone and a method based on infrared thermal imaging and visible light. Background technique [0002] Insulators are power transmission and transformation equipment with the largest number and the most obvious impact on the operating environment by the atmosphere and accumulation of pollution. Most of the transmission lines are erected in the field, and the working environment of insulators is harsh, and the insulators will be covered with ice, pollution, etc., which will greatly increase the probability of insulator failures. And with the increase of the operating time of the insulator, the mechanical and electrical properties of the insulator will decrease, resulting in aging or deteriorating insulators. adverse social impact. Therefore, it is of great practical significance to regularly test...

AI Technical Summary

Problems solved by technology

However, the traditional infrared imaging method is difficult to guarantee the detection accuracy of the manual infrared thermal imaging camera detection method due to the large distribution points and wide area of ​​high-voltage transmission line insulators, the complex terrain, and the harsh natural environment, which cannot meet the development needs of modern power grids.

[0005] In the past, in order to detect the external damage of insulators, inspectors usually rely on inspectors to inspect the line. However, the detection is difficult, the work efficiency is low, and the work intensity is high. Especially for transmission lines with complex terrain, the detection difficulty is greatly increased. Field applications can effectively overcome these difficulties

[0006] At present, a variety of effective methods have been proposed to detect the pollution level of insulators at home and abroad. The more common method is to disassemble the polluted insulator and measure its salt density and dust density to obtain the pollution level of the insulator. However, this method needs to be powered off and the operation is complicated.

Another method is to judge the pollution level by detecting the maximum conductivity of the insulator surface, but this method needs to embed electrodes on the surface of the insulator, and the operation is complicated

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