Obstacle avoidance method for unmanned aerial vehicle routing inspection safe return

Abstract

The invention relates to an obstacle avoidance method for unmanned aerial vehicle routing inspection safe return. The method comprises the steps of collecting image information to judge the actual height of an unmanned aerial vehicle; readjusting the maximum flight height and the maximum flight speed according to the absolute distance between the unmanned aerial vehicle and the stop point; if the distance between the object in the environment and the unmanned aerial vehicle is smaller than the critical safety distance, enabling the central control processor to control the unmanned aerial vehicle to move; and when the unmanned aerial vehicle enters the parking stage, enabling the central control processor to control the unmanned aerial vehicle to land at the parking point. According to the invention, by collecting the image information of the surrounding environment of the unmanned aerial vehicle, the surrounding environment information of the unmanned aerial vehicle can be quickly obtained, so that the central control processor can quickly obtain the flight height and the flight speed of the unmanned aerial vehicle according to the actual situation, and meanwhile, obstacles appearing in the flight process of the unmanned aerial vehicle are predicted in advance, the situation that the unmanned aerial vehicle is damaged or crashed due to collision between the unmanned aerial vehicle and the obstacle can be effectively avoided, and the inspection efficiency of the unmanned aerial vehicle is effectively improved.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicle control, in particular to an obstacle avoidance method for unmanned aerial vehicle inspection and safe return. Background technique [0002] Unmanned aircraft, referred to as unmanned aerial vehicle, or UAV in English, is an unmanned aircraft controlled by radio remote control equipment and its own program control device. From a technical point of view, it can be divided into: unmanned helicopter, unmanned fixed-wing aircraft, unmanned multi-rotor aircraft, unmanned airship, unmanned parawing aircraft, etc. [0003] With the development of society, UAVs are widely used in various inspections and monitoring, aerial photography and aerial broadcasting operations due to their small and flexible body, especially in the inspection process of transmission lines, which provide a lot of convenience. Domestic transmission lines Scattered, wide area, complex terrain, harsh natural environme...

AI Technical Summary

Problems solved by technology

[0005] For this reason, the present invention provides an obstacle avoidance method for the safe return of UAV inspections to overcome the problem of low inspection efficiency caused by the inability of UAVs to automatically avoid obstacles when returning to the voyage in the prior art

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