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公开(公告)号：US20210195103A1
公开(公告)日：2021-06-24
申请号：US16768244
申请日：2018-11-30
Applicant: ideaForge Technology Pvt. Ltd.
Inventor： Ankit Mehta , Rahul Singh , Ashish Bhat
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.
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公开(公告)号：US11565809B2
公开(公告)日：2023-01-31
申请号：US16648498
申请日：2018-08-30
Applicant: IDEAFORGE TECHNOLOGY PVT. LTD.
Inventor： Ankit Mehta , Ashish Bhat
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.
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公开(公告)号：US20230011789A1
公开(公告)日：2023-01-12
申请号：US17858653
申请日：2022-07-06
Applicant: ideaForge Technology Pvt. Ltd.
Inventor： Rahul Singh , Ankit Mehta , Ashish Bhat , Vishal Khetmali , Gulab Mali
IPC: H01M10/658 , H01M10/6571 , H01M10/625 , H01M50/227 , B60L58/27 , B60L50/64
Abstract: A thermal management device for a battery pack 104 of an UAV is disclosed. The thermal management device 100 comprises an insulating enclosure 102 that is made of a material comprising at least an EPP foam for enclosing the battery pack 104, and one or more heating coils 110. The heating coils 110 are electrically powered from an external power source 112 for pre-heating the insulating enclosure 102 to a predefined temperature before flight of the UAV. The EPP foam of the insulating enclosure 102 provides high thermal insulation for retaining the heat of the insulating enclosure 102 for heating the battery pack 104 and maintaining the temperature of the battery pack 104 above a threshold temperature when the UAV flies in a sub-zero ambience temperature. The insulating enclosure 102 with the one or more heating coils 110 are configured to provide uniform heat distribution across the battery pack 104.
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公开(公告)号：US11953918B2
公开(公告)日：2024-04-09
申请号：US16636427
申请日：2018-07-27
Applicant: IDEAFORGE TECHNOLOGY PVT. LTD
Inventor： Ashish Bhat
CPC classification number: G05D1/101 , B64C39/024 , B64U10/13 , B64U50/19 , B64U2201/10
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.
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公开(公告)号：US11655023B2
公开(公告)日：2023-05-23
申请号：US16962161
申请日：2019-01-15
Applicant: ideaForge Technology Pvt. Ltd.
Inventor： Rahul Singh , Ashish Bhat , Vishal Khetmali , Gulab Mali
CPC classification number: B64C29/0033 , B64C37/00 , B64C39/024 , B64C39/04 , B64U10/25 , B64U30/10 , B64U30/20
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 rotors 108 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 arms 110 are oriented parallel to central frame 104, and a storage position in which arms 110 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 maneuvering UAV for yaw and a secondary roll response. UAV includes two landing gears 106 attached to each end of central frame.
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Patent Agency Ranking
公开(公告)号：US10882615B2
公开(公告)日：2021-01-05
申请号：US16060163
申请日：2016-12-07
Applicant: IDEAFORGE TECHNOLOGY PVT. LTD.
Inventor： Ashish Bhat
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.
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公开(公告)号：US11375111B2
公开(公告)日：2022-06-28
申请号：US16768244
申请日：2018-11-30
Applicant: ideaForge Technology Pvt. Ltd.
Inventor： Ankit Mehta , Rahul Singh , Ashish Bhat
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.
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8.发明申请公开(公告)号：US20220094856A1
公开(公告)日：2022-03-24
申请号：US17457321
申请日：2021-12-02
Applicant: ideaForge Technology Pvt. Ltd.
Inventor： Ashish Bhat , Ankit Mehta , Rahul Singh , Sai Sumanth Manchukonda
Abstract: A method for capturing images of large target area using a single camera configured with an aerial vehicle (AV) for reconstructing a high-resolution image is disclosed including the steps of moving the AV over the area of interest along a straight path; capturing a first set of images of an area down below by pointing an optical axis of the camera towards a first side of the straight path such that the optical axis makes a first predefined angle with vertical; and capturing a second set of images of the area down below by pointing the optical axis of the camera towards a second side of the straight path such that the optical axis makes a second predefined angle with respect to the vertical. Side overlap between the first and second set of images is optimized to account for error in camera movement.
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公开(公告)号：US20240089602A1
公开(公告)日：2024-03-14
申请号：US18512631
申请日：2023-11-17
Applicant: ideaForge Technology Pvt. Ltd.
Inventor： Ashish Bhat , Ankit Mehta , Rahul Singh , Sai Sumanth Manchukonda
IPC: H04N23/695 , H04N23/698
CPC classification number: H04N23/695 , H04N23/698 , B64U2101/00
Abstract: A method for capturing videos and/or images of a target area using a single camera configured with an aerial vehicle (AV) is disclosed including the steps of moving the AV over the area of interest along a straight path; capturing a first set of images of an area down below by pointing an optical axis of the camera towards a first side of the straight path such that the optical axis makes a first set of predefined angles with vertical; and capturing a second set of images of the area down below by pointing the optical axis of the camera towards a second side of the straight path such that the optical axis makes a second set of predefined angles with respect to the vertical. Side overlap between the first and second set of images is optimized to account for error in camera movement.
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10.发明授权公开(公告)号：US11608187B2
公开(公告)日：2023-03-21
申请号：US16636394
申请日：2018-07-27
Applicant: IDEAFORGE TECHNOLOGY PVT. LTD
Inventor： Ashish Bhat
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.
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