Power transmission line clear distance calculation and safety alarm method based on binocular image distance measurement

Abstract

The invention discloses a power transmission line clear distance calculation and safety alarm method based on binocular image distance measurement, and the method comprises the steps: collecting a binocular inspection image of a power transmission line, and extracting image feature points; calculating a vertical clearance distance and a horizontal clearance distance between the power transmission line and the spanned object based on a binocular imaging model; and when the vertical clearance distance between the power transmission line and the spanned object is smaller than or equal to the preset vertical clearance distance or the horizontal clearance distance between the power transmission line and the spanned object is smaller than or equal to the preset horizontal clearance distance, sending a clear distance out-of-limit alarm to power transmission line operation and maintenance personnel. According to the invention, the problems of power transmission line clear distance calculation and safety alarm are solved by combining an image processing mode with a binocular imaging model, image information acquired by existing helicopter and unmanned aerial vehicle inspection is fully utilized, and compared with existing contact type and non-contact type monitoring methods, the monitoring flexibility is higher, the operation and maintenance cost is lower, and the application universality and the generalizability are higher.

Description

technical field [0001] The invention relates to the technical field of power transmission equipment safety, in particular to a method for calculating the net distance of a power transmission line based on binocular image distance measurement and for safety alarming. Background technique [0002] The clearance distance of the transmission line is an important parameter in the design and operation of the transmission line. The aging of the line, the operating load and the change of the surrounding environment will cause the line sag to change, resulting in insufficient clearance distance between the line and the crossed object, thus affecting the safety of the line. run. Therefore, it is of great engineering application value to quickly and automatically measure the clear distance of transmission lines, combine with the minimum clear distance requirements of crossing objects, automatically identify potential safety hazards, and issue risk alarms. [0003] Transmission line sa...

AI Technical Summary

Problems solved by technology

For contact and non-contact monitoring methods, although the measurement accuracy can meet the requirements of the project, both of them have large monitoring costs and maintenance costs, and the application universality and scalability are not high.

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