公开(公告)号：US12099136B2

公开(公告)日：2024-09-24

申请号：US17326301

申请日：2021-05-20

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xun Li ,  Chunming Wang

IPC: G01S7/02 ,  G01S7/35 ,  G01S13/933 ,  G05D1/00

CPC classification number: G01S7/0235 ,  G01S7/354 ,  G01S13/933 ,  G05D1/106

Abstract: The present disclosure provides a UAV control method. The method includes controlling an antenna device of a microwave radar of the UAV to transmit a microwave transmission signal and obtain a received signal, the microwave transmission signal and the received signal both being trapezoidal modulation waveforms, and one cycle of the trapezoidal modulation waveform including a frequency rising part, a frequency falling part, and a fixed frequency part; obtaining an intermediate frequency signal mixed by a frequency of the microwave transmission signal and the received signal to the radar controller, and determining whether the received signal is an interference signal based on the intermediate frequency signal; determining coordinate information of a detection target corresponding to the received signal if the received signal is not the interference signal; and updating a trajectory of the UAV based on the coordinate information of the detection target.

公开(公告)号：US11794899B2

公开(公告)日：2023-10-24

申请号：US17651809

申请日：2022-02-20

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin Wu ,  Chunming Wang ,  Qirong Deng ,  Heli Zhong

IPC: B64C39/02 ,  G05D1/00 ,  G08C17/02 ,  G08B21/18 ,  B64U101/00 ,  B64U101/30

CPC classification number: B64C39/024 ,  G05D1/0011 ,  G08B21/182 ,  G08C17/02 ,  B64U2101/00 ,  B64U2101/30 ,  B64U2201/20

Abstract: A method for controlling an unmanned aerial vehicle (UAV) includes receiving locking instruction information for locking the UAV; remotely controlling, based on the locking instruction information, a remote control device of the UAV to lock the UAV; and remotely controlling, after controlling the remote control device to lock the UAV, the remote control device to unlock the UAV.

公开(公告)号：US11126202B2

公开(公告)日：2021-09-21

申请号：US16417074

申请日：2019-05-20

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Yao Zou ,  Chunming Wang ,  Junxi Wang ,  Guang Yan

IPC: G05D1/04 ,  G05D1/10 ,  G08G5/00 ,  G08G5/04

Abstract: An obstacle-avoidance control method comprises acquiring a distance between an unmanned aerial vehicle (UAV) and a front object in a flying direction of the UAV; and controlling a flying altitude of the UAV according to the distance between the UAV and the front object.

公开(公告)号：US11067990B2

公开(公告)日：2021-07-20

申请号：US16232861

申请日：2018-12-26

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin Wu ,  Chunming Wang

IPC: G05D1/00 ,  B64D1/18 ,  G05D1/08 ,  B64C39/02 ,  G01S13/88 ,  G05D1/10

Abstract: An operation method of an unmanned aerial vehicle (UAV) includes determining a distance between the UAV and a ground reflector in front of the UAV by using a radar wave emitted obliquely downward by a radar carried by the UAV, determining terrain information in front of the UAV according to the distance between the UAV and the ground reflector in front of the UAV, and adjusting one or more operation parameters of the UAV according to the terrain information.

公开(公告)号：US11994616B2

公开(公告)日：2024-05-28

申请号：US17090263

申请日：2020-11-05

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Huangjian Zhu ,  Bin Huang ,  Hongshi Tan ,  Wenxin Hu ,  Chunming Wang

IPC: G01S7/40 ,  G01S7/497 ,  G01S7/52 ,  G01S13/42 ,  G01S13/933

CPC classification number: G01S7/4026 ,  G01S7/40 ,  G01S7/403 ,  G01S7/4972 ,  G01S7/52004 ,  G01S13/933 ,  G01S13/426

Abstract: A method includes receiving first measurement data acquired by a radar based on radar signals reflected by a member of a movable device. The method also includes calculating an angle based on the first measurement data. The method also includes comparing the angle with a predetermined reference angle to obtain a difference. The method also includes adjusting an obstacle detection angle of the radar based on the difference. The method further includes causing the radar to scan an environment in the adjusted obstacle detection angle.

公开(公告)号：US11254428B2

公开(公告)日：2022-02-22

申请号：US16418149

申请日：2019-05-21

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin Wu ,  Chunming Wang ,  Qirong Deng ,  Heli Zhong

IPC: B64C39/02 ,  G05D1/00 ,  G08C17/02 ,  G08B21/18

Abstract: A method for controlling an unmanned aerial vehicle (“UAV”) includes receiving locking instruction information from a user terminal for locking the UAV. The method also includes transmitting a locking command to a remote control device of the UAV based on the locking instruction information, to instruct the remote control device to lock the UAV based on the locking command.

公开(公告)号：US12038526B2

公开(公告)日：2024-07-16

申请号：US17707904

申请日：2022-03-29

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Wanren Zhou ,  Chunming Wang ,  Di Gao ,  Wenkang Zhang

IPC: G01S7/03 ,  G01S13/88 ,  H01Q1/24 ,  H01Q1/32 ,  H02K7/00 ,  H02K1/22

CPC classification number: G01S7/03 ,  G01S13/881 ,  H01Q1/247 ,  H01Q1/3233 ,  H02K7/003 ,  H02K1/22

Abstract: A radar device includes a radar base and a radar module. The radar module is mounted at the radar base and configured to rotate relative to the radar base around a rotation axis. The radar module includes an antenna assembly, a signal processing circuit board, and a rotation installation base. The antenna assembly and the signal processing circuit board are arranged oppositely at an interval and jointly enclose to form an accommodation space. The rotation installation base is connected to the antenna assembly and the signal processing circuit board and is located in the accommodation space. The radar base is at least partially located in the accommodation space and arranged opposite to the rotation installation base.

公开(公告)号：US11105894B2

公开(公告)日：2021-08-31

申请号：US16891712

申请日：2020-06-03

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Junxi Wang ,  Chunming Wang ,  Xumin Wu ,  Renli Shi

IPC: G01S7/35 ,  G01S13/935 ,  G01S7/03 ,  G01S13/34

Abstract: A weak target detection method includes transmitting a plurality of frequency modulated continuous wave signals during rotation of a microwave radar sensor, receiving a plurality of echo signals reflected by a weak target, accumulating the plurality of echo signals in a beam width of the microwave radar sensor to obtain an accumulated echo signal, and determining position information of the weak target according to the accumulated echo signal.