METHOD FOR ACQUIRING IMAGES HAVING UNIDIRECTIONAL DISTORTION FROM AN AERIAL VEHICLE FOR 3D IMAGE RECONSTRUCTION

    公开(公告)号:WO2019106623A1

    公开(公告)日:2019-06-06

    申请号:PCT/IB2018/059512

    申请日:2018-11-30

    Abstract: A method for capturing images of large target area using a single low FOV high resolution camera mounted on an Aerial Vehicle for 3D reconstruction is disclosed. The camera captures sets of images consisting of a nadir image a plurality of oblique images at predefined waypoints or as the Aerial Vehicle travels along a flight path. Oblique images are captured in two perpendicular directions by tilting camera about a single tilt axis at one time thereby preventing bidirectional distortion of objects in images. Further, first direction and second direction define a quadrant of area below the Aerial Vehicle. Oblique images along two perpendicular directions are captured either by using roll and pitch axes, or by using a single tilt axis and a pan axis of camera control mechanism wherein using pan axis the single tilt axis is reoriented in a perpendicular orientation to capture oblique images in perpendicular direction.

    NON-PLANAR FRAME STRUCTURE OF AN UNMANNED AERIAL VEHICLE

    公开(公告)号:WO2019048996A1

    公开(公告)日:2019-03-14

    申请号:PCT/IB2018/056626

    申请日:2018-08-30

    Abstract: The present disclosure pertains to non-planar frame structure of a multi-rotor unmanned aerial vehicle (UAV). Aspects of the present disclosure provide frame structure of a UAV that includes at least two rods 102-1 and 102-2, and one or more center supporting plates 106 holding the at least two rods 102-1 and 102-2 to form a rigid structure, wherein the at least two rods 102-1 and 102-2 are overlapped to form a crossed structure wherein ends of the at least two rods 102-1 and 102-2 construe a polygon, and wherein a plurality of propellers 204 are operatively coupled at the ends of the at least two rods to enable flight of the UAV. The frame structure includes at least four overlapping arms 104-1, 104-2, 104-3 and 104-2, at least two of which are present in different planes and thus, the present disclosure provides a non-planar frame structure of a multi-rotor UAV.

    NOVEL CYLINDRICAL CELL ARRANGEMENTS FOR BATTERY PACKS TO REDUCE THE EFFECTIVE MAGNETIC FIELD

    公开(公告)号:WO2023002266A1

    公开(公告)日:2023-01-26

    申请号:PCT/IB2022/055492

    申请日:2022-06-14

    Abstract: An improved battery pack 100/200 is disclosed, having a plurality of cylindrical cells 102 arranged in parallel disposition in rows 104/204 and columns 106/206 such that positive and negative terminals of any of the cells and the closest surrounding cells are oppositely placed to minimise the overall magnetic field due to the internal current of the cells by the opposite magnetic field of the oppositely placed adjacent cells. The positive and negative terminals at any of or both of upper and lower ends of the cells 102 in a group of adjacently located columns are connected by criss-cross connections 108/208 to provide parallel electric connection of the cells 102 in groups of adjacently located columns 106/206. Criss-cross connections 108/208 pertaining to the terminals of opposite polarity are connected by series connections 110/210 to provide series connection of the sets of cells connected in parallel by the criss-cross connections 108/208.

    MULTI-ROTOR AERIAL VEHICLE WITH SINGLE ARM FAILURE REDUNDANCY
    4.
    发明申请
    MULTI-ROTOR AERIAL VEHICLE WITH SINGLE ARM FAILURE REDUNDANCY 审中-公开
    单臂失效冗余的多旋翼空中车辆

    公开(公告)号:WO2017098412A1

    公开(公告)日:2017-06-15

    申请号:PCT/IB2016/057399

    申请日:2016-12-07

    Inventor: BHAT, Ashish

    Abstract: The present disclosure provides a multi-rotor Aerial Vehicle comprising at least five arms. Pairs of coaxial contra rotating rotors/propellers are configured on each arm defining a polygon. In the event of failure of any one of the rotors/propellers, a control system incorporating an autopilot, shuts off corresponding contra rotating rotor/propeller of the pair to maintain yaw stability thereby rendering the corresponding arm non-functional; and adjusts throttles of the coaxial contra rotating rotors/propellers of remaining functional arms to maintain tilt and lift stability of the Aerial Vehicle.

    Abstract translation: 本公开提供了一种包括至少五个臂的多旋翼飞行器。 成对的同轴对旋转子/螺旋桨配置在每个限定多边形的臂上。 在任何一个转子/推进器发生故障的情况下,包含自动驾驶仪的控制系统关闭该对转子/螺旋桨的相应的对转动以保持偏航稳定性,从而使相应的臂不起作用; 并调整其余功能臂的同轴对旋转转子/螺旋桨的节流阀,以保持飞行器的倾斜和升力稳定性。

    SELF-BALANCING PROPELLER ASSEMBLY
    5.
    发明申请

    公开(公告)号:WO2019082109A1

    公开(公告)日:2019-05-02

    申请号:PCT/IB2018/058318

    申请日:2018-10-25

    Inventor: MEHTA, Ankit

    Abstract: A device for self-balancing a rotating part, such as a propeller, along a given axis is disclosed. The propeller 102 coupled to a drive shaft with freedom for linear movement along longitudinal axis L-L; at least one pair of levers 614/616, comprising a first lever 614-1/616-1 and a second lever 614-2/616-2, that are pivotally mounted on mounting plate 606 at two diametrically opposite points 618; and at least one pair of weights 622 fixed at external ends of the levers 614/616. inner ends of levers 614/616 are operatively coupled to the propeller 102 such that when propeller 102 undergoes a linear movement in any direction along the longitudinal axis L-L due to unbalance, inner ends of levers are moved to cause the weights 622 to move to provide a balancing force to neutralize the unbalance in the propeller. An embodiment with only one pair of levers is also disclosed.

    UNMANNED AERIAL VEHICLE WITH CO-AXIAL REVERSIBLE ROTORS

    公开(公告)号:WO2019058196A1

    公开(公告)日:2019-03-28

    申请号:PCT/IB2018/056627

    申请日:2018-08-30

    Abstract: The present disclosure pertains to a multi-rotor unmanned aerial vehicle (UAV). Aspects of the present disclosure provide a UAV that includes at least four arms, each configured with a co-axial pair of contra rotating propellers, wherein each propeller has capability of rotating reversibly with associated reversal of direction of thrust, and an autopilot control system that controls rotational direction and speed of the at least four co-axial pairs of propellers to maintain yaw stability, roll stability and pitch stability of the UAV, wherein in an event of failure of any one co-axial pair out of the at least four co-axial pairs of propellers, the autopilot control system reverses direction of rotation and thereby direction of thrust of at least one propeller of any functional pair.

    SPLIT CONTROL SYSTEM CONFIGURATION FOR UAV AUTOPILOT ARCHITECTURE

    公开(公告)号:WO2019025920A1

    公开(公告)日:2019-02-07

    申请号:PCT/IB2018/055629

    申请日:2018-07-27

    Inventor: BHAT, Ashish

    Abstract: A split control system for UAV incorporating auto pilot is disclosed. Control system comprises a real-time low-level main processor, and a non-real-time high-level co-processor. The co-processor computes desired body rate values and feeds them to the main processor which may be with latency. Main processor computes one or more motor control signals based on the desired body rate values. The main processor also executes a rate damping loop algorithm based on instantaneous body rate values to generate one or more motor control signals to maintain stability of the UAV even in events of latency in desired body rate values from the co-processor. Instantaneous body rate values are either obtained directly from sensors without any latency or obtained by main processor indirectly with negligible latency. Main processor acts as an intermediate between sensors and co-processor by collecting raw sensor data and feeding the data to co-processor.

    CAMERA CONTROL MECHANISM FOR AN AERIAL VEHICLE

    公开(公告)号:WO2018178776A1

    公开(公告)日:2018-10-04

    申请号:PCT/IB2018/051059

    申请日:2018-02-21

    CPC classification number: B64D47/08 B64C39/024 B64C2201/127

    Abstract: The present disclosure relates to a control system for a retractable belly mounted payload in an Aerial vehicle for retraction, pan and tilt movements of the payload, comprising a first mechanism to rotate the payload about a vertically oriented first axis for pan movement of the payload, and a second mechanism to rotate the payload about a horizontally oriented second axis, wherein rotation of the payload about the second axis provides movement of the payload between a retracted position within belly of the Aerial Vehicle and a deployed position out of the belly of the Aerial Vehicle, as well as tilt movement of the payload in its deployed position. First mechanism is driven by a servo through a set of gears or pulley-belt mechanism, and second mechanism is driven by a directly connected servo connected to the payload. Both the servos rotate along with payload during pan movement.

    RETRACTABLE CAMERA FOR FIXED WING UAV
    9.
    发明申请
    RETRACTABLE CAMERA FOR FIXED WING UAV 审中-公开
    固定翼无人机可伸缩摄像机

    公开(公告)号:WO2017141154A1

    公开(公告)日:2017-08-24

    申请号:PCT/IB2017/050805

    申请日:2017-02-14

    CPC classification number: B64D47/08 B64C39/024 B64C2201/123 B64C2201/127

    Abstract: Embodiments of the present disclosure relate to a belly-mounted retraction mechanism for a payload in a fixed wing UAV. The retractable payload can be a two-axis camera system designed to fit inside the aircraft fuselage cross section. The disclosed retraction mechanism is a servo driven direct link mechanism configured to drive the payload between its retracted/stowed position & projected position by pivotally moving the payload about a horizontal axis. The retraction mechanism gets mechanically locked in retracted and projected positions and can only be moved when driven by the servo thus preventing any unintended movements due to inertia or gravitational forces. The retraction mechanism further comprises a spring to bias the payload against gravitational force for smooth descent of the payload and a slider flap to close the opening when the payload is moved to deployed position.

    Abstract translation: 本公开的实施例涉及用于固定翼UAV中的有效载荷的安装在腹部上的回缩机构。 可伸缩有效载荷可以是一个两轴相机系统,设计用于安装在飞机机身横截面内。 所公开的收缩机构是伺服驱动的直接连杆机构,其被配置为在有效载荷的缩回/收起位置和收起位置之间驱动有效载荷。 通过使有效载荷围绕水平轴线枢转地移动来预测位置。 缩回机构机械锁定在缩回位置和伸出位置,并且只有在伺服驱动时才能移动,从而防止由惯性或重力引起的任何意外移动。 收缩机构还包括弹簧,以抵抗有效负载的平稳下降的重力偏置有效载荷,以及当有效载荷移动到展开位置时关闭开口的滑动挡板。

    SYSTEM AND METHOD FOR DISPLAYING ELEMENTS OF AN APPLICATION IN SPLIT-SCREEN VIEW

    公开(公告)号:US20220374009A1

    公开(公告)日:2022-11-24

    申请号:US17749011

    申请日:2022-05-19

    Abstract: The present disclosure provides system and method for displaying a plurality of elements of at least one application on a display screen. An aspect of the present disclosure pertains to a method for displaying the plurality of elements of the at least one application on the display screen, the method including the steps of splitting, at a computing device, the display screen into a plurality of sections, associating, at the computing device, at least one section of the plurality of sections with at least one element of the plurality of elements of the at least one application, controlling, at the computing device, at least one display parameter of the at least one section, and displaying, at the computing device, the at least one element on the display screen in split-screen view.

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