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1.发明公开公开(公告)号：US20240302169A1
公开(公告)日：2024-09-12
申请号：US18179609
申请日：2023-03-07
Applicant: Honeywell International Inc.
Inventor： Christopher J. Mauer , Shuang Li , Zhizhen Shen , Jingwei Li
CPC classification number: G01C21/188 , B81B7/02 , G01C21/18 , B81B2201/0235 , B81B2201/0242 , B81B2207/05 , G01C21/166
Abstract: An inertial measurement unit (IMU). The IMU includes: a plurality of micro-electromechanical system (MEMS) sensors, each having an output; a memory for storing calibration coefficients separately for each of the plurality of MEMS sensors, blending weights for each of the plurality of MEMS sensors, and data blending instructions for blending the outputs of the plurality of MEMS sensors; and a processor, coupled to the memory and the plurality of MEMS sensors, configured to execute the data blending instructions to apply the calibration coefficients separately to each of the plurality of MEMS sensors and the blending weights to the outputs of the plurality of MEMS sensors to create a blended output for the IMU; wherein the blending weights are calculated based on a plurality of test parameters for the plurality of MEMS sensors using at least one of a harmonic and a geometric mean of the plurality of test parameters.
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公开(公告)号：US12078487B2
公开(公告)日：2024-09-03
申请号：US18297984
申请日：2023-04-10
Applicant: DENSO CORPORATION
Inventor： Teruhisa Akashi , Shota Harada
IPC: G01C21/18 , G01C19/06 , G01C19/18 , G01C19/5776 , G01C19/5783
CPC classification number: G01C21/18 , G01C19/065 , G01C19/18 , G01C19/5776 , G01C19/5783
Abstract: Before a pedestal is assembled, a sensitivity is inspected for each of sensors disposed in blocks respectively. In an inspection step, the blocks in which the sensors are disposed respectively are prepared. The blocks are fitted into main-axis groove portions of a main-axis tray, and the blocks are brought in contact with main-axis positioning surfaces of the main-axis groove portions to dispose the thickness direction of the main-axis tray and the main-axes of the sensors in parallel. The main-axis tray is arranged on a turntable such that a central axis of rotation of the turntable and the thickness direction of the main-axis tray are in parallel and that the central axis of rotation of the turntable and the main-axes of the sensors are in parallel. The turntable is made pivoting or swinging to inspect the sensitivities, in the main-axes, of the of sensors.
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公开(公告)号：US12038285B1
公开(公告)日：2024-07-16
申请号：US17396902
申请日：2021-08-09
Inventor： Jongmin Lee , Daniel Beom Soo Soh
CPC classification number: G01C21/18 , G01C21/1656
Abstract: A hybrid inertial navigation system and method are provided. The system includes a conventional inertial measurement unit (with a three-axis accelerometer and a three-axis gyroscope operating at a high data rate and low sensitivity), light pulse atom interferometer accelerometer and gyroscope (operating at a low data rate and high sensitivity), and a processing system. The method of the hybrid inertial navigation system includes precisely determining an acceleration and an angular velocity and allowing light pulse atom interferometry operation under dynamic environments. A processing system of the hybrid inertial navigation system performs feedforward correction operations on the light-pulse atom interferometer accelerometer and gyroscope of the hybrid inertial navigation system. The processing system determines one or more control signals based on the inertial information from the conventional inertial measurement unit, a light pulse atom interferometer model, and the feedforward algorithm.
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公开(公告)号：US20240044936A1
公开(公告)日：2024-02-08
申请号：US18487459
申请日：2023-10-16
Applicant: SEIKO EPSON CORPORATION
Inventor： Yusuke KINOSHITA , Nobuyuki IMAI
CPC classification number: G01P15/18 , G01C21/165 , G01C21/18 , G01S19/47 , G01S19/49 , B81B2201/0242 , B81B2201/0235
Abstract: An inertia measurement device, which is used in combination with a satellite positioning receiver that outputs a positioning result at every T seconds in a positioning system equipped on a vehicle, when a Z-axis angular velocity sensor, a position error P[m] based on the detection signal of the Z-axis angular velocity sensor while the vehicle moves at a moving speed V[m/sec] for T seconds satisfies Pp≥P=(V/Bz)×(1−cos(Bz×T)) (where, a bias error of the Z-axis angular velocity sensor is Bz[deg/sec] and a predetermined allowable maximum position error during movement for T seconds is Pp[m]), and a bias error Bx and By of the Y-axis angular velocity sensor satisfies Bz
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公开(公告)号：US11796320B2
公开(公告)日：2023-10-24
申请号：US17075880
申请日：2020-10-21
Inventor： Qiaozhong Liang
CPC classification number: G01C21/165 , G01C21/18 , G01S19/30 , G01S19/49 , G01S19/53 , G06F18/214 , G06F18/251
Abstract: A positioning method, apparatus, device, and a computer storage medium are provided. The method includes: obtaining update information of an object, the update information including GPS positioning information and dead reckoning position information, the dead reckoning position information being determined according to attitude change information of the object measured by an inertial measurement unit (IMU); determining a fusion positioning model matching the update information, the fusion positioning model being used for performing fusion positioning using the update information; determining error information of the update information, the error information indicating error conditions of the update information; and performing the fusion positioning on the GPS positioning information and the dead reckoning position information of the update information according to the fusion positioning model with the error information to obtain a current position of the object.
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Patent Agency Ranking
6.发明授权公开(公告)号：US11774987B2
公开(公告)日：2023-10-03
申请号：US17168289
申请日：2021-02-05
Applicant: Digital Aerolus, Inc.
Inventor： Ian J. McEwan , Thomas D. Williams , Jeffery J. Alholm , John C. Blessing , Jacob B. Davisson , Frank C. Glazer , Jay D. Manifold , Laurence R. Williams
CPC classification number: G05D1/101 , B64C39/024 , G01C21/18 , G05D1/0825 , G05D1/0858 , B64U2201/104
Abstract: A method and system for controlling movement of a vehicle. Movement, orientation, and position data of the vehicle is collected. A model of kinematics of the vehicle and its environment is created and a Theory of World model is produced and updated. The model includes geometric algebra multivectors. Errors and noise are stored as geometrically meaningful first-class objects within the multivectors. Geometric algebra operations are used to manipulate the model during operation. Error and noise data are propagated and manipulated using geometric algebra operations to reflect measurement and processing errors or noise. The models are used in generation of control data with a primary intent of ensuring stability. Operations such as intersections are used to compare position, orientation, and movement of the vehicle against position, orientation, and movement of objects in its environment. System tasks include, but are not limited to, kinematics, inverse kinematics, collision avoidance, and dynamics.
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公开(公告)号：US20230273037A1
公开(公告)日：2023-08-31
申请号：US18142971
申请日：2023-05-03
Applicant: Micron Technology, Inc.
Inventor： Bhumika Chhabra , Radhika Viswanathan , Carla L. Christensen , Zahra Hosseinimakarem
CPC classification number: G01C21/3635 , G01C21/18 , G01C21/3667 , G06T19/003
Abstract: Methods and devices and systems related to a computing device for providing a route with augmented reality (AR) are described. An example method can include receiving, at a computing device, a trigger associated with a first location of the computing device, tracking movement of the computing device relative to the first location, and providing a route back to the first location from a second location reached during the tracked movement. The route can include displayed AR.
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公开(公告)号：US20230258456A1
公开(公告)日：2023-08-17
申请号：US18002005
申请日：2021-06-24
Inventor： Shinichi KISHIMOTO
IPC: G01C21/28 , G01C21/16 , G01C21/18 , G01C19/5776
CPC classification number: G01C21/28 , G01C21/166 , G01C21/18 , G01C19/5776
Abstract: An inertial sensor includes: a plurality of inertial force detection elements each configured to output an output signal corresponding to a detected inertial force; and a processor configured to execute processing relating to the output signal from each of the plurality of inertial force detection elements. The plurality of inertial force detection elements include a first inertial force detection element and a second inertial force detection element. A detection range of the first inertial force detection element and a detection range of the second inertial force detection element are different from each other. A sensitivity of the first inertial force detection element and a sensitivity of the second inertial force detection element are different from each other.
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9.发明公开公开(公告)号：US20230244248A1
公开(公告)日：2023-08-03
申请号：US18299132
申请日：2023-04-12
Applicant: Digital Aerolus, Inc.
Inventor： Ian J. McEwan , Thomas D. Williams , Jeffery J. Alholm , John C. Blessing , Jacob B. Davisson , Frank C. Glazer , Jay D. Manifold , Laurence R. Williams
CPC classification number: G05D1/101 , B64C39/024 , G01C21/18 , G05D1/0825 , G05D1/0858 , B64U2201/104
Abstract: A method and system for controlling movement of a vehicle. Movement, orientation, and position data of the vehicle is collected. A model of kinematics of the vehicle and its environment is created and a Theory of World model is produced and updated. The model includes geometric algebra multivectors. Errors and noise are stored as geometrically meaningful first-class objects within the multivectors. Geometric algebra operations are used to manipulate the model during operation. Error and noise data are propagated and manipulated using geometric algebra operations to reflect measurement and processing errors or noise. The models are used in generation of control data with a primary intent of ensuring stability. Operations such as intersections are used to compare position, orientation, and movement of the vehicle against position, orientation, and movement of objects in its environment. System tasks include, but are not limited to, kinematics, inverse kinematics, collision avoidance, and dynamics.
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10.发明授权公开(公告)号：US11702210B2
公开(公告)日：2023-07-18
申请号：US17369004
申请日：2021-07-07
Applicant: IIXXMMXXI LLC
Inventor： Aidan Panthera
CPC classification number: B64D11/0639 , B25J5/06 , B64C29/02 , G01C21/18
Abstract: An orientation assembly includes a platform and a locking assembly engageable with the platform and positionable in a first state in which the platform is permitted to rotate about a lateral axis and inhibited from rotating about a longitudinal axis perpendicular to the lateral axis, and a second state in which the platform is permitted to rotate about the longitudinal axis and inhibited from rotating about the lateral axis.
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