Obstacle avoidance method and system for UAV (unmanned aerial vehicle)

Abstract

The invention discloses an obstacle avoidance method for a UAV (unmanned aerial vehicle). The method is applied to a target UAV and comprises steps as follows: current obstacle information sent by other UAVs is acquired through a communication network; the flight attitude is adjusted according to the information. In the method, the target UAV and other UAVs establish communication connection through the communication network, the target UAV directly acquires information of obstacles detected by other UAVs instead of consuming own time and processing space to detect the obstacles, and the information acquisition ways are more concise, so that time for the target UAV to acquire the obstacle information is shortened, the target UAV can have sufficient time to adjust own flight attitude and cope with the current obstacles in advance, flight accidents caused by delayed response are avoided, and the obstacle avoidance efficiency is improved. The invention also discloses an obstacle avoidancesystem for the UAV, which has the same benefits.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to an obstacle avoidance method and system for unmanned aerial vehicles. Background technique [0002] With the advancement of science and technology, drones are more and more widely used in the civilian consumer market, such as aerial photography, environmental monitoring, geological exploration, daily entertainment, etc. However, the flight environment information of drones in the air is often difficult to predict, and unexpected situations are often encountered, such as high-altitude birds, low-altitude branches, utility poles, buildings, etc., which bring great challenges to the flight of drones. Due to the potential safety hazards, the demand for UAVs to actively avoid obstacles came into being. [0003] At present, there are many invention patents that propose UAV obstacle avoidance schemes, but most of them are based on a single UAV. The action of obstacle ...

AI Technical Summary

Problems solved by technology

However, the flight environment information of drones in the air is often difficult to predict, and unexpected situations are often encountered, such as high-altitude birds, low-altitude branches, utility poles, buildings, etc., which bring great challenges to the flight of drones. potential safety hazards, the demand for UAVs to actively avoid obstacles came into being

[0003] At present, many invention patents have proposed UAV obstacle avoidance schemes, but most of them are based on a single UAV. If a UAV group composed of multiple UAVs encounters obstacles at the same time, each UAV needs to Performing obstacle information detection and obstacle avoidance actions wastes calculation costs and time, and may cause flight accidents due to untimely response

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