Unmanned aerial vehicle landing control method, controller and unmanned aerial vehicle
A control method and technology for UAVs, applied in the field of UAVs, can solve the problems of limited ranging accuracy, consumption of computer resources, poor RTK communication, etc.
Pending Publication Date: 2020-10-20
BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD
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Problems solved by technology
[0003] Use RTK guidance technology to realize the landing of the drone. If there is poor RTK communication or poor GPS signal near the landing point of the drone, it will cause a large deviation between the actual landing point of the drone and the scheduled landing point.
Using the guidance technology of radio frequency tags to realize the landing of drones is susceptible to interference from other electrical signals and occlusions, resulting in positioning deviations
The guidance technology based on visual landmarks uses binocular vision ranging. On the one hand, the ranging accuracy is limited, and on the other hand, it consumes more computer resources.
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[0032] Various exemplary embodiments of the present disclosure will now be described in detail with reference to the accompanying drawings. It should be noted that relative arrangements of components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present disclosure unless specifically stated otherwise.
[0033] At the same time, it should be understood that, for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship.
[0034] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way intended as any limitation of the disclosure, its application or uses.
[0035] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of t...
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The invention provides an unmanned aerial vehicle landing control method, a controller and an unmanned aerial vehicle, and relates to the field of unmanned aerial vehicles. The method comprises the steps of detecting distance information from the unmanned aerial vehicle to the ground by using a distance measuring sensor; acquiring image information of a landmark identifier based on a visual sensor; based on the image information of the landmark identifier and the information of the distance between the unmanned aerial vehicle and the ground, determining coordinate information of the landmark identifier in a vehicle body coordinate system; and controlling the unmanned aerial vehicle according to the coordinate information of the landmark identifier in the vehicle body coordinate system so that the unmanned aerial vehicle is enabled to land at the landmark position. The accuracy of autonomous guided landing of the unmanned aerial vehicle is improved.
Description
technical field [0001] The present disclosure relates to the field of unmanned aerial vehicles, in particular to a landing control method for an unmanned aerial vehicle, a controller and an unmanned aerial vehicle. Background technique [0002] The application of drones in the field of logistics is becoming more and more extensive. The related research on the accurate landing of drones to the predetermined location includes: RTK (Real-time kinematic, real-time dynamic)-based guidance technology, radio frequency tag-based guidance technology and Guidance techniques for visual landmarks, etc. [0003] Use RTK guidance technology to realize the landing of the drone. If there is poor RTK communication or poor GPS signal near the landing point of the drone, it will cause a large deviation between the actual landing point of the drone and the scheduled landing point. . The use of radio frequency tag guidance technology to realize the landing of drones is susceptible to interfere...
Claims
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IPC IPC(8): G05D1/12
CPCG05D1/12
Inventor 杨旭
Owner BEIJING JINGDONG QIANSHITECHNOLOGY CO LTD