公开(公告)号：US11420743B2

公开(公告)日：2022-08-23

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

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.

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.

公开(公告)号：US10819187B2

公开(公告)日：2020-10-27

申请号：US15356273

申请日：2016-11-18

Applicant: SZ DJI TECHNOLOGY CO., LTD.

Inventor： Shimeng Bei ,  Xumin Wu ,  Qiang Yu ,  Jiyuan Ao ,  Xiaolong Wu

IPC: H02K9/06 ,  H02K5/20 ,  H02K21/22 ,  F04D25/08 ,  H02K11/33 ,  H02K7/14 ,  H02K5/10

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：US10266265B2

公开(公告)日：2019-04-23

申请号：US15241715

申请日：2016-08-19

Applicant: SZ DJI TECHNOLOGY Co., Ltd.

Inventor： Xumin Wu ,  Zhuang Feng ,  Jiyuan Ao

IPC: B64D1/18 ,  A01M7/00 ,  B05B12/02 ,  B64C39/02 ,  G01S19/00 ,  B05B12/00 ,  B05B12/12 ,  B05B9/04 ,  B05B12/08 ,  B05B13/00 ,  G01S19/14

Abstract: Systems and methods can determine a liquid flow in a spraying system. An amount of liquid that is output from the spraying system during a pump cycle is determined. A number of pump cycles that occur within a given amount of time are measured. The number of pump cycles are measured using an electronic speed controller (ESC). Additionally, the ESC indicates the number of pump cycles within a given amount of time within a threshold of precision. The amount of liquid flow in the spraying system is calculated based on the measured number of pump cycles and the determined amount of liquid that is output from the spraying system.

公开(公告)号：USD829592S1

公开(公告)日：2018-10-02

申请号：US29566292

申请日：2016-05-27

Applicant: SZ DJI Technology Co., Ltd.

Designer： Xumin Wu ,  Yifen Liu

公开(公告)号：US09914537B2

公开(公告)日：2018-03-13

申请号：US15336584

申请日：2016-10-27

Applicant: SZ DJI TECHNOLOGY Co., LTD

Inventor： Xumin Wu ,  Xiaolong Wu ,  Sungki Lee ,  Jiyuan Ao ,  Zhuang Feng

IPC: B64C27/08 ,  B64C39/02 ,  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: Systems and methods are provided for transformation of a UAV from an extended state to a compacted state. The UAV can be transported in the compacted state. The UAV can comprise one or more segmented arms that can be folded to reduce the volume of the UAV. The segmented arms can be sealed to prevent ambient air, dirt, and or water vapor from entering the segmented arm. The UAV can comprise a cooling and air filtering system on-board the UAV.

公开(公告)号：US20170152843A1

公开(公告)日：2017-06-01

申请号：US15241667

申请日：2016-08-19

Applicant: SZ DJI TECHNOLOGY Co., Ltd

Inventor： Shimeng Bei ,  Xumin Wu ,  Jiyuan Ao ,  Yijun Guan ,  Xiaolong Wu

IPC: F04B43/00 ,  B64C39/02 ,  B64D1/18 ,  F04B43/04

CPC classification number: F04B43/0081 ,  B64C39/024 ,  B64D1/18 ,  F04B43/04 ,  F04B49/065 ,  F04B49/103 ,  F04B2203/0209 ,  F04D15/0066

Abstract: Systems and methods can control a pumping system. Operating characteristics of a driving apparatus are obtained. The driving apparatus is operatively coupled to a pump and operates to effect operation of the pump. Additionally, instructions are provided to an electronic speed controller. In particular, the instructions direct the electronic speed controller to control activity of the driving apparatus.