Power distribution line infrared inspection method and system based on mobile terminal

Abstract

The invention discloses a distribution line infrared inspection method and system based on a mobile terminal, and the method comprises the steps: obtaining a first highest temperature value of a field device and a three-phase device thermogram, and judging whether the first highest temperature value is greater than a preset temperature threshold value or not; if the temperature is not greater than the preset temperature threshold value, performing opening operation on the binary image of the three-phase equipment thermogram, so that at least one single-phase equipment thermogram is extracted and segmented; converting the RGB pixel value matrix in the thermal image of the at least one single-phase device into a gray level image pixel value matrix, and mapping the gray level image pixel value matrix into a temperature distribution matrix; whether the maximum inter-phase temperature difference value in the thermal image of the at least one single-phase device is larger than a preset inter-phase threshold value or not is obtained; if yes, the defect grade of the field equipment is judged according to the preset inter-phase threshold, so that a first defect record is generated. Data support can be provided for deep analysis of distribution network line defect hidden danger identification, and the method plays an important role in improving distribution network line power supply reliability.

Description

technical field [0001] The invention belongs to the technical field of power system analysis, and in particular relates to a mobile terminal-based infrared inspection method and system for power distribution lines. Background technique [0002] The distribution network line undertakes the task of directly supplying power to users, and all electric energy must be delivered to power consumers through the distribution network line. Hidden dangers of defects in power distribution equipment can easily lead to interruption of line power supply, especially defects caused by heating such as equipment pile heads and wire clips due to poor contact. However, the distribution lines and equipment have many points and many heating defects. Operators need to carry out regular inspections and special inspections on the lines and equipment according to the inspection requirements. Due to the current inspection process of operation and maintenance personnel, due to the basic account of the eq...

AI Technical Summary

Problems solved by technology

Hidden dangers of defects in power distribution equipment can easily lead to interruption of line power supply, especially defects caused by heating such as equipment pile heads and wire clips due to poor contact

However, the distribution lines and equipment have many points and many heating defects. Operators need to carry out regular inspections and special inspections on the lines and equipment according to the inspection requirements. Due to the current inspection process of operation and maintenance personnel, due to the basic account of the equipment on the internal network, The external network cannot be associated with the equipment ledger, cannot query equipment information, and even if a defect is found, it cannot be uploaded to the power grid production management system in time, and the health status of the equipment cannot be evaluated in time, and the historical health status of the equipment cannot be queried through big data, which seriously affects the work of operators efficiency

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