Return control method and device of unmanned aerial vehicle and unmanned aerial vehicle

A technology of a control method and a control device, which is applied in the field of drones, drone return control methods, and devices, can solve problems such as aircraft GPS positioning accuracy errors, GPS multi-path interference, and drone landing, and achieve accurate return. Effect

Active Publication Date: 2019-01-18
SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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Problems solved by technology

[0003] However, if the UAV takes off from an environment with high-rise buildings around it, due to the multi-path interference of GPS, the GPS positioning accuracy error of the aircraft is very large at low altitu

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  • Return control method and device of unmanned aerial vehicle and unmanned aerial vehicle
  • Return control method and device of unmanned aerial vehicle and unmanned aerial vehicle
  • Return control method and device of unmanned aerial vehicle and unmanned aerial vehicle

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Embodiment Construction

[0052] In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

[0053] In order to solve the problem that when the UAV takes off from an environment with high-rise buildings around it, the GPS positioning accuracy error during low-altitude flight is very large due to the multi-path interference of the GPS, so that the UAV cannot return accurately. The present invention provides a The UAV return control method, which can still ensure that the UAV can return accurately when taking off in an environment with large GPS multi-path interference, avoiding the failure of the UAV to return to the take-off position in this case, causing the UAV The problem of loss or other safety accidents; or, in the good environment of GPS satellites in open areas, the UAV can still ensure that the UAV can r...

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Abstract

The invention relates to a return control method and device of an unmanned aerial vehicle and the unmanned aerial vehicle. The method comprises the steps of receiving a return instruction sent from aterminal or automatically triggered by lost protection or automatically triggered by low-battery protection; judging whether prestored displacement correction quantity is effective or not; if not, controlling the unmanned aerial vehicle to return according to a prestored return point; and if yes, controlling the unmanned aerial vehicle to return according to a prestored deviation point. By the method, the unmanned aerial vehicle can be enabled to accurately return, and the loss of the unmanned aerial vehicle of other safety accidents caused by the unmanned aerial vehicle which does not returnto a take-off position can be prevented.

Description

technical field [0001] The present invention relates to the field of unmanned aerial vehicle control, and more specifically, relates to a method, device and unmanned aerial vehicle for returning home control of an unmanned aerial vehicle. Background technique [0002] At present, in an open area, by returning to the take-off position via GPS (or GLONASS / Beidou), coupled with up-and-down image matching, the UAV can achieve precise landing, ensuring that the deviation between take-off and landing positions is about 10cm. [0003] However, if the UAV takes off from an environment with high-rise buildings around it, due to the multi-path interference of GPS, the GPS positioning accuracy error of the aircraft is very large at low altitudes. By returning to the GPS, the position difference between the UAV and the take-off point can be greater than 20m, which is easy Cause the drone to land in an unknown and unsafe place, or cause a safety accident. Contents of the invention [...

Claims

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Application Information

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IPC IPC(8): G05D1/10
CPCG05D1/101
Inventor 杨坚
Owner SHENZHEN AUTEL INTELLIGENT AVIATION TECH CO LTD
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