Electromagnetic field positioning method of overhead transmission line patrol unmanned aerial vehicle and apparatus thereof

Abstract

An electromagnetic field positioning method of an overhead transmission line patrol unmanned aerial vehicle and an apparatus thereof are disclosed. Through measuring a magnetic field vector and an electric field vector of a position where an unmanned aerial vehicle is located, according to a mathematic relation of an electromagnetic field vector and a distance, a space position between the unmanned aerial vehicle and a power transmission line is determined; and through wireless transmission equipment, acquired space position data between the unmanned aerial vehicle and the power transmission line is transmitted to a terminal control system. A three-component method is used to measure the magnetic field vector and a three-axis orthogonal method is used to measure the electric field vector. By using the method and the apparatus of the invention, positioning accuracy of the line patrol unmanned aerial vehicle can be effectively increased; uncertainty brought by observation by naked eyes is avoided; effects of safety and high efficiency are achieved; and simultaneously an intelligent degree of line patrol is increased.

Description

technical field [0001] The invention belongs to the field of transmission line inspection drones, in particular to an electromagnetic field positioning method and device for overhead transmission line inspection drones, which are mainly used for the positioning of overhead transmission line inspection drones. Background technique [0002] Overhead power lines have a wide coverage area, complex terrain and harsh natural environment. Power lines and towers have been exposed in the wild for a long time, and are constantly being violated by external factors such as mechanical tension, material aging, lightning strikes, and pollution, which may easily lead to faults such as broken strands of ground wires, corrosion of fittings, damage of insulators, and tilting of towers. If they are not discovered in time And repair and replacement will eventually lead to serious accidents and seriously threaten the safety and stability of the power system. In order to grasp the operation statu...

AI Technical Summary

Problems solved by technology

[0004] In the existing manual inspection methods, there are many "blind areas", which consume a lot of manpower and material resources, and cannot meet the economic and security requirements of smart grid development; manual inspections of overhead transmission lines, in the complex environment of the field Under the circumstances, the personal safety of the staff is easily threatened by other factors in nature. However, when the existing UAV patrols the line, due to its inaccurate positioning, it cannot meet the technical requirements for the line inspection; because at a suitable distance, the line inspection UAVs can achieve the best line inspection results, thus supporting our correct judgment on the operation of the line

At present, when the UAV is patrolling the line, because the naked eye cannot accurately judge the distance between the UAV and the overhead line, the best effect cannot be achieved, and it will pose a huge threat to both the overhead line and the UAV.

[0005] Disadvantages of the existing technology: the existing technology only detects the electric field or magnetic field unilaterally, and there are errors in three-dimensional imaging

At present, the research and analysis of the electromagnetic environment of high-voltage transmission wires at home and abroad have achieved certain results, but the main research direction is the impact of the electromagnetic environment of high-voltage transmission wires on the human body and live workers, as well as the interference on some electronic instruments.

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