Method and system for measuring and calculating distance of external damaged object of power transmission line

Abstract

The invention discloses a power transmission line external damage object distance measuring and calculating method and system, on one hand, an external damage hidden danger object graph is acquired and identified to obtain two-dimensional coordinate information of an external damage image, and on the other hand, a three-dimensional space scene of a power transmission line is established to obtain three-dimensional space information of the power transmission line. Then converting two-dimensional coordinates and three-dimensional coordinates to obtain the two-dimensional coordinates of the external rupture object in the three-dimensional space, and then, through the height information of the virtual camera from the basic plane of the three-dimensional space and in combination with the two-dimensional coordinates of the external rupture object in the three-dimensional space, obtaining the external rupture object in the three-dimensional space. The three-dimensional space coordinate position and the specific size information of the external damage hidden danger object are calculated by using the geometric mathematical relationship, and finally the distance from the external damage hidden danger object to the power transmission line is calculated according to the three-dimensional space coordinate of the external damage hidden danger object, so that the size and the position of the external damage hidden danger object of the power transmission line are sensed. And calculating the clearance distance of the external damage hidden danger object of the power transmission line to the power transmission line.

Description

technical field [0001] The invention relates to the technical field of power transmission line safety monitoring, in particular to a method and system for measuring and calculating the distance of a broken object on a power transmission line. Background technique [0002] With the development of the economy, the number of kilometers of power grid transmission lines and the number of towers continue to increase, and the total load of the power grid increases year by year. Once a line safety accident occurs, it will have a huge impact on the power grid. In the process of operation and maintenance of transmission lines, many factors have a great impact on the normal operation of transmission lines. External force intrusion and damage is the main factor for transmission line tripping. Because transmission lines have many points, wide areas, long lines, and long-term exposure to the wild, etc. It is very easy to be damaged by external force. The current anti-breakage technology ...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a method and system for measuring and calculating the distance of an externally damaged object on a transmission line, which is used to solve the problem that the existing transmission line externally damaged cannot perceive the size and location information of the externally damaged hidden danger, and cannot calculate the impact of the externally damaged hidden danger on the transmission line in real time. The clearance distance leads to the technical problem of weak monitoring and early warning capabilities for the hidden danger of transmission line failure, and the inability to guarantee the operational reliability and safety of the transmission line

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