Detachable aerial photographic apparatus

    公开(公告)号:US10009518B2

    公开(公告)日:2018-06-26

    申请号:US14971506

    申请日:2015-12-16

    Abstract: A detachable aerial photographic apparatus includes a carrier, an aircraft, a take-off delaying device and a trigger. The aircraft includes a main body disposed on the carrier, at least one propeller is pivotally furnished in the main body and a camera disposed on the main body. The take-off delaying device includes a movable member disposed on the carrier and at least one stopper connected to the movable member. The stopper is detachably connected to the aircraft for prevent the aircraft from taking off. The movable member is for detaching the stopper from the aircraft for releasing the aircraft. The trigger is electrically connected to the aircraft and the take-off delaying device. The trigger is for triggering the propeller and the movable member. A first time point when the propeller is triggered by the trigger is earlier than a second time point when the stopper is detached from the aircraft.

    CONTROLLED FLIGHT OF A MULTICOPTER EXPERIENCING A FAILURE AFFECTING AN EFFECTOR

    公开(公告)号:US20180155009A1

    公开(公告)日:2018-06-07

    申请号:US15833385

    申请日:2017-12-06

    Applicant: ETH Zurich

    Abstract: According to a first aspect of the invention, there is provided a method for operating a multicopter experiencing a failure during flight, the multicopter comprising a body, and at least four effectors attached to the body, each operable to produce both a torque and a thrust force which can cause the multicopter to fly when not experiencing said failure. The method may comprise the step of identifying a failure wherein the failure affects the torque and/or thrust force produced by an effector, and in response to identifying a failure carrying out the following steps, (1) computing an estimate of the orientation of a primary axis of said body with respect to a predefined reference frame, wherein said primary axis is an axis about which said multicopter rotates when flying, (2) computing an estimate of the angular velocity of said multicopter, (3) controlling one or more of said at least four effectors based on said estimate of the orientation of the primary axis of said body with respect to said predefined reference frame and said estimate of the angular velocity of the multicopter. The step of controlling one or more of said at least four effectors may be performed such that (a) said one or more effectors collectively produce a torque along said primary axis and a torque perpendicular to said primary axis, wherein (i) the torque along said primary axis causes said multicopter to rotate about said primary axis, and (ii) the torque perpendicular to said primary axis causes said multicopter to move such that the orientation of said primary axis converges to a target orientation with respect to said predefined reference frame, and (b) such that said one or more effectors individually produce a thrust force along said primary axis.

    Unmanned aerial vehicle
    80.
    发明授权

    公开(公告)号:US09981741B2

    公开(公告)日:2018-05-29

    申请号:US14858973

    申请日:2015-09-18

    CPC classification number: B64C39/024 B64C2201/027 B64C2201/042 B64C2201/127

    Abstract: Systems and methods are described herein related to an unmanned aerial vehicle, the unmanned aerial vehicle includes: a frame portion, two rear arms extending away from the frame portion, and at least one rear air propulsion device arranged on each of the rear arms at an orthogonal angle relative to a vertical axis. The at least one rear air propulsion device has an axis of rotation for both lift and rotation based on the angle. The unmanned aerial vehicle has two front arms arranged along a horizontal axis. The vertical axis is perpendicular to the horizontal axis. The unmanned aerial vehicle also includes at least one camera arranged on at least one of the front arms. The at least one camera faces a front direction.

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