Methods and Systems for Raising and Lowering a Payload

    公开(公告)号:US20180072422A1

    公开(公告)日:2018-03-15

    申请号:US15389326

    申请日:2016-12-22

    Abstract: Described herein are methods and systems for picking up, transporting, and lowering a payload coupled to a tether of a winch system arranged on an unmanned aerial vehicle (UAV). For example, the winch system may include a motor for winding and unwinding the tether from a spool, and the UAV's control system may operate the motor to lower the tether toward the ground so a payload may be attached to the tether. The control system may monitor an electric current supplied to the motor to determine whether the payload has been attached to the tether. In another example, when lowering a payload, the control system may monitor the motor current to determine that the payload has reached the ground and responsively operate the motor to detach the payload from the tether. The control system may then monitor the motor current to determine whether the payload has detached from the tether.

    TRICOPTER-TYPE ROTARY WING DRONE
    18.
    发明申请

    公开(公告)号:US20170349272A1

    公开(公告)日:2017-12-07

    申请号:US15175803

    申请日:2016-06-07

    Applicant: EZNOV

    Abstract: The tricopter type rotary-wing drone includes three arms connected to a frame. Each of the free ends of the arms support a rotor with an axis perpendicular to the respective free end. The rotor is driven in rotation by a motor connected to power supply. The arms are pivotally mounted on the frame. Two arms automatically drive the rotor supported by their respective free ends into a position in which its axis forms an angle between −30° and +150° with the plane of the frame. The third arm automatically pivots, if necessary, into a position in which its free end is spaced apart from the apex being considered of the triangle by an angle between −60° and +60°.

    UNMANNED AERIAL VEHICLE (UAV) HAVING VERTICAL TAKEOFF AND LANDING (VTOL) CAPABILITY

    公开(公告)号:US20170320570A1

    公开(公告)日:2017-11-09

    申请号:US15168842

    申请日:2016-05-31

    Applicant: David Horn

    Inventor: David Horn

    Abstract: An unmanned aerial vehicle (UAV), or drone, includes a fuselage, left and right airfoil-shaped wings connected to the fuselage to generate lift in forward flight, a left thrust-generating device supported by the left wing, and a right thrust-generating device supported by the right wing. The UAV further includes a vertical stabilizer, a top thrust-generating device mounted to a top portion of the vertical stabilizer, and a bottom thrust-generating device mounted to a bottom portion of the vertical stabilizer. An onboard power source is provided for powering the thrust-generating devices. The left, right, top and bottom thrust-generating devices provide forward thrust during forward flight and also provide vertical thrust to enable the unmanned aerial vehicle to take-off and land vertically when the fuselage is substantially vertical and further enabling the unmanned aerial vehicle to transition between forward flight and vertical take-off and landing.

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