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    METHOD, DEVICE, AND STORAGE MEDIUM FOR FLIGHT TRAJECTORY REPLAY
    41.
    发明申请
    METHOD, DEVICE, AND STORAGE MEDIUM FOR FLIGHT TRAJECTORY REPLAY 有权

    公开(公告)号：US20210237871A1

    公开(公告)日：2021-08-05

    申请号：US17238188

    申请日：2021-04-22

    Applicant: SZ DJI TECHNOLOGY CO., LTD.

    Inventor： Jiang YAN ,  Ang LIU

    IPC: B64C39/02 ,  G05D1/10

    Abstract: Embodiments of the present disclosure provides method, device, and storage medium for flight trajectory replay. The method includes obtaining flight state data collected by an aircraft at a plurality of flight times, and generating an original flight path based on the flight state data, the flight state data including at least one of a position, a speed, or an acceleration of the aircraft; determining a safe speed of each position in the original flight path based on the original flight path; and generating a replay trajectory based on the safe speed of each position, and generating a control instruction based on the replay trajectory for controlling the aircraft to fly along the replay trajectory. While generating the replay trajectory, the aircraft can fly at a constant speed during the replay.

    SYSTEMS AND METHODS FOR SURVEILLANCE WITH A VISUAL MARKER
    44.
    发明申请
    SYSTEMS AND METHODS FOR SURVEILLANCE WITH A VISUAL MARKER 审中-公开

    公开(公告)号：US20200310468A1

    公开(公告)日：2020-10-01

    申请号：US16901974

    申请日：2020-06-15

    Applicant: SZ DJI TECHNOLOGY CO., LTD.

    Inventor： Ang LIU ,  Xiao HU ,  Guyue ZHOU

    IPC: G05D1/10 ,  B64C39/02 ,  B64D47/08 ,  G01C21/20 ,  G06K7/14 ,  G06K9/00 ,  G06K19/06 ,  G08G5/00 ,  G08G5/04

    Abstract: A method of controlling an unmanned aerial vehicle (UAV) in an environment includes detecting, with aid of a sensor coupled to the UAV and while the UAV is in flight, a signal that is emitted from and uniquely identifying a locating marker; determining, with aid of a processor, a sequence of actions to control the UAV in response to a plurality of instructions encoded in the locating marker and communicated by the signal; and controlling, with aid of the processor, the UAV to effect the sequence of actions according to a specified time interval included in the plurality of instructions. The specified time interval indicates a wait time before the UAV effects the sequence of actions.

    METHOD AND SYSTEM FOR DETECTING AND TRACKING OBJECTS USING CHARACTERISTIC POINTS
    46.
    发明申请
    METHOD AND SYSTEM FOR DETECTING AND TRACKING OBJECTS USING CHARACTERISTIC POINTS 审中-公开

    公开(公告)号：US20190279387A1

    公开(公告)日：2019-09-12

    申请号：US16426921

    申请日：2019-05-30

    Applicant: SZ DJI TECHNOLOGY CO., LTD.

    Inventor： Ang LIU ,  Pu XU

    IPC: G06T7/593 ,  G06T7/70 ,  H04N13/271 ,  B64C39/02

    Abstract: A method includes obtaining a disparity map based on stereoscopic image frames captured by stereoscopic cameras borne on a movable platform, determining a plurality of continuous regions in the disparity map that each includes a plurality of elements having disparity values within a predefined range, identifying a continuous sub-region including one or more elements having a highest disparity value among the elements within each continuous region as an object, and determining a distance between the object and the movable platform using at least the highest disparity value.

    METHOD FOR CONTROLLING FLIGHT OF AN AIRCRAFT, DEVICE, AND AIRCRAFT
    47.
    发明申请
    METHOD FOR CONTROLLING FLIGHT OF AN AIRCRAFT, DEVICE, AND AIRCRAFT 审中-公开

    公开(公告)号：US20190243356A1

    公开(公告)日：2019-08-08

    申请号：US16384300

    申请日：2019-04-15

    Applicant: SZ DJI TECHNOLOGY CO., LTD.

    Inventor： Xiao HU ,  Ang LIU ,  Litian ZHANG

    IPC: G05D1/00 ,  B64C39/02 ,  G05D1/08 ,  B64D47/08

    CPC classification number: G05D1/0038 ,  B64C39/024 ,  B64C2201/146 ,  B64D47/08 ,  G05D1/0094 ,  G05D1/0808 ,  G05D1/10 ,  H04N5/232

    Abstract: A method for controlling flight of an aircraft includes obtaining a location of a target area in an image captured by an imaging device mounted on the aircraft. The method also includes determining, based on the location of the target area, a relative direction of a target object corresponding to the target area relative to the aircraft. The method also includes determining a first direction of the aircraft based on the relative direction, the first direction being a direction approaching the target object. The method also includes based on a determination that the aircraft is in a moving-away flight mode, determining a second direction based on the first direction, the second direction being opposite the first direction. The method further includes controlling the flight of the aircraft based on the second direction.

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