Small fixed-wing unmanned aerial vehicle air collision prevention system and collision prevention method

Abstract

The invention belongs to the technical field of unmanned aerial vehicles (UAV), and relates to a small fixed-wing UAV air collision prevention system and a collision prevention method. The small fixed-wing UAV air collision prevention system includes a sensing module and a collision avoidance module which are installed on a fixed-wing UAV. The sensing module includes a state sensing sub-module, a communication sub-module, and an obstacle sensing sub-module. The collision avoidance module includes a collision prediction sub-module and a collision avoidance sub-module. The collision prediction sub-module is connected with the sensing module, and is used for generating prediction information about whether continuing flying will lead to collision and transmitting the prediction information to the collision avoidance sub-module. The collision avoidance sub-module adjusts the flight direction and flight speed of the fixed-wing UAV according to the prediction information. The invention further provides a collision prevention method. UAV collision during flight is avoided, and the safety of flight is ensured.

Description

technical field [0001] The invention belongs to the technical field of unmanned aerial vehicles, and in particular relates to an air collision avoidance system and an anti-collision method for a small fixed-wing unmanned aerial vehicle. Background technique [0002] It has become an important trend in the development of UAVs that multiple UAVs cooperate to perform tasks in the same airspace. With the wide application of UAVs, safety accidents such as collisions and crashes occur frequently, especially in the airspace with high density of aircraft, the collisions faced by UAVs and UAVs, UAVs and manned aircraft in the same airspace Conflict has become a prominent problem affecting the coordinated use of multiple UAVs. Therefore, the demand for research on UAV aerial collision avoidance system has become very urgent. [0003] Small fixed-wing UAVs, compared with traditional aircraft, have lower flight speeds and smaller sizes, and often fly at low Reynolds numbers. High Reyn...

AI Technical Summary

Problems solved by technology

In foreign countries, although the problem of multi-UAV collision avoidance has attracted much attention in recent years, there are still few studies on fixed-wing UAVs, and there is still a certain distance from practical applications.

In short, at present, the mid-air collision avoidance system and anti-collision method for small fixed-wing UAVs are under research and development. For the hovering wing UAV, its flying speed is slow, and the radar search range used in the collision avoidance system is relatively short, which is not suitable for the small fixed-wing UAV with higher speed

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