Patent ID: 11919637
Assignee: AUTEL ROBOTICS CO., LTD.
Field: Control (Instruments)
Classification: CPC B  G  Y | IPC B  G

Claim 0:
1. An automatic return method, applicable to an unmanned aerial vehicle (UAV), the method comprising:
obtaining current return information, environmental information and a remaining battery level of the UAV in real time, wherein the return information comprises a return route, a return distance, a return acceleration pedal depression amount and a power consumption rate corresponding to the return acceleration pedal depression amount for the UAV to return from a current position to a return point, and the environmental information comprises information about a vertical air stream on the return route;
determining, according to the return information and the environmental information, a total power consumption for the UAV to return from the current position to the return point; and
controlling the UAV to return automatically when a difference between the remaining battery level and the total power consumption is less than or equal to a battery level threshold;
wherein the determining, according to the return information and the environmental information, a total power consumption for the UAV to return from the current position to the return point comprises:
determining, according to the return information, a basic power consumption for the UAV to return from the current position to the return point without an influence of the vertical air stream;
determining, according to the information about the vertical air stream on the return route, an additional power consumption for the UAV to return from the current position to the return point; and
determining, based on the basic power consumption and the additional power consumption, the total power consumption for the UAV to return from the current position to the return point;
wherein the determining, according to the information about the vertical air stream on the return route, an additional power consumption for the UAV to return from the current position to the return point comprises:
determining, according to the information about the vertical air stream, whether a vertical air stream region exists on the return route; and
in response to the vertical air stream does not exists, determining that the additional power consumption for the UAV to return from the current position to the return point is 0; or
in response to the vertical air steam exists, determining, according to a range and an air stream strength of the vertical air stream region, the additional power consumption for the UAV to return from the current position to the return point.