公开(公告)号：US20240426612A1

公开(公告)日：2024-12-26

申请号：US18750161

申请日：2024-06-21

Applicant: Murata Manufacturing Co., Ltd.

Inventor： Antti FINNE ,  Pekka KOSTIAINEN

IPC: G01C21/18 ,  B64U10/14 ,  B64U101/30 ,  G01C21/16 ,  G02B27/64

Abstract: A method is provided for determining the orientation of a drone that includes a main body, a camera device with an attachment structure, and one or more MEMS gyroscopes on the camera device or the attachment structure. The method includes retrieving one or more first measurement values from one or more MEMS gyroscopes when the camera device is in a first position in relation to the main body of the drone, shifting the camera device from the first position to a second position in relation to the main body of the drone, retrieving one or more second measurement values from said one or more MEMS gyroscopes when the camera device is in the second position, and then calculating the orientation of the drone based on at least the one or more first measurement values and the one or more second measurement values.

公开(公告)号：US12177738B2

公开(公告)日：2024-12-24

申请号：US17343913

申请日：2021-06-10

Applicant: Suunto Oy

Inventor： Tuomas Hapola ,  Heikki Nieminen ,  Mikko Martikka ,  Erik Lindman ,  Olli-Pekka Koistinen

IPC: A63B24/00 ,  G01C17/28 ,  G01C21/08 ,  G01C21/16 ,  G01C21/18 ,  G01C21/20 ,  G07C1/22 ,  G16H20/30 ,  H04W4/02 ,  H04W4/029

Abstract: According to an example aspect of the present invention, there is provided a method and system for tracking and determining a position of an object along a planned route, the method comprising: providing information of at least one predetermined route and determining a planned route based on the information of the at least one predetermined route; determining a primary position of the object based on at least one of: signals received from a satellite positioning system and the planned route; tracking a first position of the object via the satellite positioning system; and comparing whether the first position matches with the planned route. If the first position is found to deviate from the planned route, determining a secondary position of movement of the object based on measurements of at least one of: an inertia sensor and an acceleration sensor; wherein at least one of acceleration, speed and direction of the object is measured. Determining the secondary position indication of the object based on the first position and the secondary position of movement of the object; comparing whether the secondary position indication matches with at least one of: the planned route and the at least one predetermined route, and determining the current position of the object based on: at least one of: the at least one predetermined route and the planned route; and at least one of: the first position and the secondary position indication.

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

IPC: G01C21/16 ,  B81B7/02 ,  G01C21/18

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.

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.

公开(公告)号：US12038285B1

公开(公告)日：2024-07-16

申请号：US17396902

申请日：2021-08-09

Applicant: National Technology & Engineering Solutions of Sandia, LLC

Inventor： Jongmin Lee ,  Daniel Beom Soo Soh

IPC: G01C21/18 ,  G01C21/16

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.

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

IPC: G01P15/18 ,  G01C21/16 ,  G01C21/18 ,  G01S19/47 ,  G01S19/49

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

公开(公告)号：US11796320B2

公开(公告)日：2023-10-24

申请号：US17075880

申请日：2020-10-21

Applicant: TENCENT TECHNOLOGY (SHENZHEN) COMPANY LIMITED

Inventor： Qiaozhong Liang

IPC: G01C21/18 ,  G01C21/16 ,  G01S19/30 ,  G01S19/49 ,  G01S19/53 ,  G06F18/214 ,  G06F18/25

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.

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

IPC: G05D1/10 ,  G01C21/18 ,  B64C39/02 ,  G05D1/08

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.

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

IPC: G01C21/36 ,  G01C21/18 ,  G06T19/00

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.

公开(公告)号：US20230258456A1

公开(公告)日：2023-08-17

申请号：US18002005

申请日：2021-06-24

Applicant: Panasonic Intellectual Property Management Co., Ltd.

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.