公开(公告)号：US20200064467A1

公开(公告)日：2020-02-27

申请号：US16663983

申请日：2019-10-25

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Junxi WANG ,  Chunming WANG ,  Xumin WU

IPC: G01S13/94 ,  G01S13/93

Abstract: The present disclosure provides an unmanned aerial vehicle (UAV) control method. The method includes controlling a microwave radar disposed on the UAV to transmit a microwave signal while rotating around a rotating shaft; acquiring a frequency of an intermediate frequency signal based on a frequency of the transmitted signal and a frequency of an echo signal; determining a distance between the UAV and a surrounding obstacle based on the frequency of the intermediate frequency signal; and adjusting a flight path of the UAV based on the distance between the UAV and the surrounding obstacle.

公开(公告)号：US20180170541A1

公开(公告)日：2018-06-21

申请号：US15889881

申请日：2018-02-06

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin WU ,  Xiaolong WU ,  Sungki LEE ,  Jiyuan AO ,  Zhuang FENG

IPC: B64C39/02 ,  B64C27/08 ,  B64C27/12 ,  B64D47/08

CPC classification number: B64C39/024 ,  B64C1/30 ,  B64C27/08 ,  B64C27/12 ,  B64C2201/027 ,  B64C2201/042 ,  B64C2201/108 ,  B64C2201/12 ,  B64C2201/201 ,  B64D47/08

Abstract: An unmanned aerial vehicle (UAV) comprises a central body, a plurality of arms that extend out from the central body, and a plurality of rotors. Each arm has one or more joints that segment the arm into a stem portion proximal to the central body and one or more branch portions distal to the central body. The one or more joints permit the one or more branch portions to move horizontally relative to the stem portion between an extended state and a compacted state. The one or more branch portions are arranged substantially parallel to a perimeter edge of the central body in the compacted state. Each rotor in the plurality is attached to the one or more branch portions.

公开(公告)号：US20240160209A1

公开(公告)日：2024-05-16

申请号：US18353489

申请日：2023-07-17

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin WU ,  Guang YAN ,  Zhuang FENG ,  Meng HU ,  Zefei LI ,  Mingxi WANG ,  Renli SHI

IPC: G05D1/00 ,  B64C1/16 ,  B64C39/02 ,  B64D1/16 ,  G01C23/00 ,  G08G5/00 ,  G08G5/02 ,  B64U101/60

CPC classification number: G05D1/0202 ,  B64C1/16 ,  B64C39/024 ,  B64D1/16 ,  G01C23/00 ,  G08G5/0034 ,  G08G5/0039 ,  G08G5/0056 ,  G08G5/006 ,  G08G5/0069 ,  G08G5/0086 ,  G08G5/025 ,  B64U2101/60 ,  B64U2201/10

Abstract: A method for supporting aerial operation includes obtaining a real-time location of an aircraft, obtaining a location of a supply station, obtaining a location of a next waypoint, and controlling the aircraft based on a status parameter related to a flight status of the aircraft associated with the real-time location of the aircraft. Controlling the aircraft includes controlling, in response to the status parameter satisfying a first preset condition, the aircraft to fly to the next waypoint; and controlling, in response to the status parameter satisfying a second preset condition, the aircraft to fly to the supply station.

公开(公告)号：US20200301423A1

公开(公告)日：2020-09-24

申请号：US16891784

申请日：2020-06-03

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Junxi WANG ,  Chunming WANG ,  Xumin WU ,  Renli SHI

IPC: G05D1/00 ,  G05D1/06 ,  G01S13/91

Abstract: A flight control method of an agricultural unmanned aerial vehicle (UAV) includes controlling a rotation device to rotate continuously to drive a radar detection device to rotate continuously, obtaining detection information at a plurality of rotation directions during continuous rotation of the radar detection device, and controlling take-off and landing of the agricultural UAV according to the detection information.

公开(公告)号：US20190138010A1

公开(公告)日：2019-05-09

申请号：US16232861

申请日：2018-12-26

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin WU ,  Chunming WANG

IPC: G05D1/00 ,  G05D1/10 ,  B64C39/02 ,  G01S13/88

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：US20210333794A1

公开(公告)日：2021-10-28

申请号：US17328965

申请日：2021-05-24

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin WU ,  Guang YAN ,  Zhuang FENG ,  Meng HU ,  Zefei LI ,  Mingxi WANG ,  Renli SHI

IPC: G05D1/02 ,  G01C23/00 ,  G08G5/00 ,  G08G5/02 ,  B64C1/16 ,  B64C39/02 ,  B64D1/16

Abstract: A method for supporting aerial operation over a surface includes obtaining a representation of the surface that comprises a plurality of flight sections, and identifying a flight path based on the representation of the surface. The flight path allows an aircraft, when following the flight path, to conduct an operation over the flight sections.

公开(公告)号：US20210013777A1

公开(公告)日：2021-01-14

申请号：US17038127

申请日：2020-09-30

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Shimeng BEI ,  Xumin WU ,  Qiang YU ,  Jiyuan AO ,  Xiaolong WU

IPC: H02K9/06 ,  H02K11/33 ,  H02K21/22 ,  H02K5/20 ,  F04D25/08

Abstract: A system and kit for dissipating heat generated by a motor assembly and methods for manufacturing and using same. The motor assembly includes a housing that defines an internal chamber. The internal chamber communicates with an air inlet and an air outlet each being formed in the housing, and can at least partially receive motor inner workings. A pump assembly can be included in the internal chamber for generating an air flow during operation of the motor assembly. The pump assembly can draw air into the internal chamber via the air inlet, generating an air flow within the internal chamber. The air drawn into the internal chamber is applied to the motor inner workings, and the air heated by the motor inner workings is expelled from the internal chamber via the air outlet. Thereby, the air flow advantageously can cool the motor assembly as the air traverses the internal chamber.

公开(公告)号：US20200285254A1

公开(公告)日：2020-09-10

申请号：US16879482

申请日：2020-05-20

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Junxi WANG ,  Chunming WANG ,  Xumin WU ,  Renli SHI

IPC: G05D1/10 ,  B64C39/02 ,  B64C1/36 ,  G05D1/00 ,  G01S13/933

Abstract: An obstacle avoidance method for an unmanned aerial vehicle (UAV) includes determining a flight trajectory of an obstacle relative to the UAV according to measurement data output by a radar arranged at the UAV, and performing an obstacle avoidance according to the flight trajectory of the obstacle.

公开(公告)号：US20200094960A1

公开(公告)日：2020-03-26

申请号：US16680073

申请日：2019-11-11

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin WU ,  Xiaolong WU ,  Sungki LEE ,  Jiyuan AO ,  Zhuang FENG

IPC: B64C39/02 ,  B64C1/30 ,  B64C27/08 ,  B64C27/12 ,  B64D47/08

Abstract: An unmanned aerial vehicle (UAV) includes a central body, a plurality of arms extending out from the central body and in fluid communication with the central body, and a plurality of propulsion units. The plurality of arms are configured to route fluid away from the central body of the UAV. Each propulsion unit attached to a corresponding arm of the plurality of arms.

公开(公告)号：US20200017215A1

公开(公告)日：2020-01-16

申请号：US16557304

申请日：2019-08-30

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Xumin WU ,  Guang YAN ,  Zhuang FENG

IPC: B64D1/18 ,  B64C39/02 ,  A01M7/00 ,  A01C15/04 ,  A01C7/08 ,  A01M21/04 ,  A01M9/00 ,  B64C17/00

Abstract: An aerial dispensing method includes obtaining a wind velocity of a wind that causes a drift to a substance dispensed from an unmanned aerial vehicle (UAV), and controlling one or more components of the UAV based on the obtained wind velocity to cause at least mitigation to the drift.