公开(公告)号：US10996670B2

公开(公告)日：2021-05-04

申请号：US16531302

申请日：2019-08-05

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Renli Shi ,  Jianyu Song ,  Xi Chen

IPC: G05D1/00 ,  B64C39/02 ,  B64D27/24

Abstract: An electric unmanned aerial vehicle includes a position sensor, a memory, and a controller in communication with the position sensor and the memory. The position sensor is configured to obtain coordinate information of a present position of the electric unmanned aerial vehicle in real-time. The coordinate information includes a plane coordinate on a horizontal plane and a height coordinate in a vertical direction. The memory stores coordinate information of a preset position of the electric unmanned aerial vehicle. The controller is configured to calculate a safety electricity amount needed by the electric unmanned aerial vehicle to perform a safety protection command based on the plane coordinate and the height coordinate, compare the safety electricity amount with a present remaining electricity amount of a battery of the electric unmanned aerial vehicle, and perform a safety protection command if the present remaining electricity amount is not greater than the safety electricity amount.