Landing method and system for unmanned aerial vehicle

Abstract

The invention discloses a landing method and system for an unmanned aerial vehicle. By using visual identification, GPS position information which is sent out by a mobile carrier can also be combinedto conduct combined navigation, and accordingly the problems are effectively solved that the mobile carrier moves extremely quickly, and a visual system loses a target and cannot quickly track the target; a position-time relation and a gesture-time relation of a landing platform are estimated through a digital information filtering fusion algorithm, and a prediction function of the mobile carrierabout the gesture, position and time is obtained; according to the prediction function of the mobile carrier about the gesture, position and time, the flying target of the unmanned aerial vehicle is updated in real time and comprises the position, speed and gesture, the landing point, landing speed and landing time of the unmanned aerial vehicle are precisely controlled, and accordingly the problems are solved that three-dimensional shifting is caused when a ship floats on the water surface, the landing platform of a deck surface can also incline left and right continuously, landing of the unmanned aerial vehicle is inaccurate, and even stable landing locking cannot be achieved.

Description

technical field [0001] The invention relates to the technical field of unmanned aerial vehicles, in particular to a method and system for landing an unmanned aerial vehicle. Background technique [0002] At present, the landing process of most ship-borne UAVs needs to be completed by manual remote control at close range, which is not suitable for unmanned ships carrying UAVs to work in the ocean. In particular, there is no precedent for how to automatically land UAVs on unmanned ship platforms. The conventional drone-guided landing method (GPS guidance) works well in the land target area, but it is difficult to adapt to the shaking unmanned shipboard system, because the target area has horizontal and vertical shaking in the final stage, and there are information errors, which cannot be achieved. Drones land precisely and cannot be guided precisely at different altitudes and speeds. [0003] Moreover, the existing drone landing methods generally descend directly, without sen...

AI Technical Summary

Problems solved by technology

[0002] At present, the landing process of most shipborne UAVs needs to be completed by manual remote control at a short distance, which is not suitable for unmanned ships carrying UAVs to work in the ocean. In particular, there is no precedent for how to automatically land UAVs on unmanned ship platforms.

The conventional drone-guided landing method (GPS guidance) works well in the land target area, but it is difficult to adapt to the shaking unmanned shipboard system, because the target area has horizontal and vertical shaking in the final stage, and there are information errors, which cannot be achieved. The drone lands precisely, and it cannot be precisely guided at different altitudes and speeds

[0003] Moreover, the existing drone landing methods are generally directly descending, without perception of how high it is from the ground when landing, or with perception but without adding some protective measures, and the perception of the environment is often not

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