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

Applicant: IDEAFORGE TECHNOLOGY PVT. LTD.

Inventor： MEHTA, Ankit ,  SINGH, Rahul ,  BHAT, Ashish

IPC: G06T17/00

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.

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

Applicant: IDEAFORGE TECHNOLOGY PVT. LTD.

Inventor： MEHTA, Ankit ,  BHAT, Ashish

IPC: B64C17/00 ,  B64C27/08 ,  B64C39/02

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.

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

Applicant: IDEAFORGE TECHNOLOGY PVT. LTD.

Inventor： BHAT, Ashish

IPC: B64C27/00 ,  B64C17/00 ,  G05D1/08

CPC classification number: B64C17/00 ,  B64C39/024 ,  B64C2201/027 ,  B64C2201/108 ,  B64C2201/14

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。

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

Applicant: IDEAFORGE TECHNOLOGY PVT. LTD.

Inventor： BHAT, Ashish

IPC: G05D1/00 ,  G06F9/00

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.

公开(公告)号：WO2019150206A1

公开(公告)日：2019-08-08

申请号：PCT/IB2019/050296

申请日：2019-01-15

Applicant: IDEAFORGE TECHNOLOGY PVT. LTD.

Inventor： SINGH, Rahul ,  BHAT, Ashish ,  KHETMALI, Vishal ,  MALI, Gulab

IPC: B64C27/08 ,  B64C29/00 ,  B64C39/02

Abstract: A fixed-wing VTOL hybrid UAV is disclosed comprising: a central frame 104; a pair of quick lockable fixed-wings 102 comprising right wing 102-2 and left wing 102-1 that lock with each other over the central frame; and four electrically operated rotors108 in downward facing configuration attached to fixed-wings with help of rotor-blade arms 110. Arms 110 are pivotally fixed to wings 102 so that arms 110 are movable between a working position in which arms110 are oriented parallel to central frame 104, and a storage position in which arms110 are aligned with wings 102. Central frame 104 is a thin rod and works as fuselage. Drivers and control modules are fitted in wings 102. UAV includes rudders attached to arms at 45 degrees for manoeuvring UAV for yaw and a secondary roll response. UAV includes two landing gears 106 attached to each end of central frame.

公开(公告)号：WO2019025918A1

公开(公告)日：2019-02-07

申请号：PCT/IB2018/055627

申请日：2018-07-27

Applicant: IDEAFORGE TECHNOLOGY PVT. LTD.

Inventor： BHAT, Ashish

IPC: B64C17/00 ,  B64C27/08 ,  B64C39/02

Abstract: A multi-rotor Aerial Vehicle with least rotors/propellers and having single arm failure redundancy is disclosed. The AV comprises at least five arms with at least one arm having a co-axial pair of contra rotating rotors/propellers. To maintain yaw stability under normal conditions, half of rotors/propellers are rotated in one direction and other half in opposite direction. In the event of failure of any one of the rotors/propellers located adjacent to the pair of contra rotating rotors/propellers, the one propeller/rotor out of the contra rotating rotor/propeller that is rotating opposite to the failed rotor/propeller is shut off. In the event of failure of a rotor/propeller belonging to contra rotating rotors/propellers, other rotor/propeller of the pair is shut off. In the event of failure of any one of rotors/propellers not adjacent to contra rotating rotors/propellers, the RPMs of other rotors/propellers is adjusted to maintain stability and navigate the Aerial Vehicle.

公开(公告)号：EP3684686A1

公开(公告)日：2020-07-29

申请号：EP18858212.6

申请日：2018-08-30

Applicant: Ideaforge Technology Pvt. Ltd.

Inventor： MEHTA, Ankit ,  BHAT, Ashish

IPC: B64C17/00 ,  B64C27/08 ,  B64C39/02

公开(公告)号：EP4318158A1

公开(公告)日：2024-02-07

申请号：EP23188832.2

申请日：2023-08-01

Applicant: Ideaforge Technology Pvt. Ltd.

Inventor： BHAT, Ashish ,  SARUP, Dhirendra Vipan

IPC: G05D1/00

Abstract: A system and a method for estimating coverage area and viewing area for an Unmanned Aerial Vehicle 104 (UAV 104) is disclosed. It involves creating an operational map of a home location's area coverage 302 pertaining to a complex terrain based on no fly zone polygon data and elevation data, based on the information of the area coverage provided by a navigation unit. The map is created using multiple sample points and validating said sample points by checking whether or not they are at no fly zone or exceeding maximum AGL. Moreover, the operational map is drawn by using home location as a center point. Further, it involves determining and generating coverage area and viewing area of the UAV based on the operational map. It also discloses a feature of checking take-off suitability.

公开(公告)号：EP3386853A1

公开(公告)日：2018-10-17

申请号：EP16872517.4

申请日：2016-12-07

Applicant: Ideaforge Technology Pvt. Ltd.

Inventor： BHAT, Ashish

IPC: B64C27/00 ,  B64C17/00 ,  G05D1/08

CPC classification number: B64C39/024 ,  B64C17/00 ,  B64C27/10 ,  B64C2201/027 ,  B64C2201/108 ,  B64C2201/14

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.