公开(公告)号：US20240004051A1

公开(公告)日：2024-01-04

申请号：US18215654

申请日：2023-06-28

Applicant: Autel Robotics Co., Ltd.

Inventor： Feng TAO ,  Yanfeng Dang

IPC: G01S13/34 ,  G01S7/35 ,  G01S13/536 ,  G05D1/10

CPC classification number: G01S13/347 ,  G01S7/356 ,  G01S13/536 ,  G05D1/106

Abstract: A radar ranging method and a ranging radar are applied to an unmanned aerial vehicle. A first range to an obstacle is obtained using a first radar waveform. range. A second range to the obstacle are obtained using a second radar waveform if the first range is less than a preset switching threshold. the maximum detection range of the first radar waveform is greater than that of the second radar waveform; and a detection range resolution of the second radar waveform is higher than that of the first radar waveform.

公开(公告)号：US20240004060A1

公开(公告)日：2024-01-04

申请号：US18215649

申请日：2023-06-28

Applicant: AUTEL ROBOTICS CO., LTD.

Inventor： Feng TAO ,  Yanfeng DANG

IPC: G01S13/935 ,  G05D1/10

CPC classification number: G01S13/935 ,  G05D1/106

Abstract: An automatic obstacle avoidance method is applied to an unmanned aerial vehicle (UAV). The UAV includes at least one radar. The method includes: acquiring detected data of the radar; calculating theoretical state information of the detection target based on motion information of the UAV; excluding invalid data from the detected data using a Kalman filtering algorithm to obtain corrected data by combining the detected data with the theoretical state information; determining the height information of the UAV by correcting the detected data; and triggering an obstacle avoidance warning when the height information of the UAV is less than a pre-set height threshold value.