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公开(公告)号：US11480443B2
公开(公告)日：2022-10-25
申请号：US16582754
申请日：2019-09-25
发明人： Xun Zhou , Yuanfan Xie , Shirui Li , Liang Wang
摘要： Embodiments of the present disclosure disclose a method for calibrating a relative pose, a device, and a medium. The method includes: obtaining first point cloud data of a scene collected by the laser radar in an automatic driving mobile carrier and first pose data collected by the navigation positioning system in the automatic driving mobile carrier; and determining the relative pose between the laser radar and the navigation positioning system based on the first point cloud data, the first pose data, second point cloud data pre-collected by a laser scanner in the scene and second pose data pre-collected by a positioning device in the scene.
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公开(公告)号：US11479459B2
公开(公告)日：2022-10-25
申请号：US16946511
申请日：2020-06-24
申请人： INVENSENSE, INC.
发明人： Karthik Katingari , Uday Mudoi , Mahdi Heydari
摘要： Described herein are methods and systems for controlling a sensor assembly with a plurality of same type sensors. Sensors are operated in active and inactive states and have a corresponding performance parameter and reliability parameter that may be determined. The activation state of at least one of the sensors is changed based on an operational parameter. The performance parameter and/or the reliability parameter can then be updated.
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公开(公告)号：US11442176B2
公开(公告)日：2022-09-13
申请号：US16260266
申请日：2019-01-29
申请人： SONY CORPORATION
发明人： Katsuyuki Tanaka , Mohamed Youssef , Hidetoshi Kawauchi , Katsumi Takaoka , Kazukuni Takanohashi
摘要： A Global Navigation Satellite System (GNSS) enabled device includes an inertial sensor and receiver circuitry to track a position of the GNSS enabled device. The receiver circuitry selects a mode of a GNSS technology based on power available at the GNSS enabled device and a positioning error value associated with the mode of the GNSS technology. The positioning error value associated with the selected mode is less than a specified accuracy threshold. The receiver circuitry calibrates the inertial sensor based on the selected mode of the GNSS technology to track the position of the GNSS enabled device to reduce the overall power consumption at the GNSS enabled device.
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公开(公告)号：US11441924B2
公开(公告)日：2022-09-13
申请号：US16473050
申请日：2018-01-24
申请人： Robert Bosch GmbH
发明人： Kevin Hauck , Sebastian Roith
摘要： The disclosure relates to a method for detecting a standstill of a vehicle, said method comprising a step of filtering, a step of normalizing and a step of observing. In the filtering step, an acceleration value in a first axis of the vehicle and a rotational speed value about a second axis of the vehicle, oriented orthogonally to the axis, are filtered using a filter specification in order to obtain a filtered acceleration value and a filtered rotational speed value. In the normalizing step, the filtered acceleration value and the filtered rotational speed value are normalized using a normalization specification in order to obtain a normalized acceleration value and a normalized rotational speed value. In the observation step, the normalized acceleration value and the normalized rotational speed value are observed using an observation specification in order to detect the standstill.
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公开(公告)号：US11441900B2
公开(公告)日：2022-09-13
申请号：US17009464
申请日：2020-09-01
发明人： Han Seok Nam , Dongjun Lee
摘要： Provided are a movable marking system, a method of controlling a movable marking apparatus, and a computer-readable recording medium. The movable marking system is a movable marking system that includes a movable marking apparatus, and includes: a data receiving unit for receiving marking data regarding a working surface; a marking unit for performing a marking operation on the working surface in response to the marking data; a sensing unit for scanning space targeted for scanning; and a scan condition setting unit for setting a movement path of the movable marking apparatus corresponding to the marking data, setting a scan position for scanning the space targeted for scanning by taking into account reference map data corresponding to the space targeted for scanning, and setting a scan angle of the sensing unit at the scan position.
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公开(公告)号：US11432110B2
公开(公告)日：2022-08-30
申请号：US16485336
申请日：2018-04-18
申请人： VGIS INC.
发明人： Alexandre Pestov
IPC分类号： H04W4/029 , G01C21/00 , H04M1/72457 , G01C21/16 , G01C25/00 , G06F3/0488 , G06T11/00 , H04W4/02
摘要： The present specification relates generally to geopositioning and more specifically relates to a method, system and computer program product for calibrating absolute user location and bearing on a low geolocation accuracy computing device or a computing device without location capabilities by using a high geometric resolution map.
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公开(公告)号：US20220205787A1
公开(公告)日：2022-06-30
申请号：US17618626
申请日：2020-06-15
摘要： A method of monitoring at least first and second inertial measurement units, the first inertial measurement unit and the second inertial measurement unit being connected to the same electronic processor circuit and being arranged to determine both a specific force vector in an accelerometer measurement reference frame and also rotation data concerning turning of the accelerometer measurement reference frame relative to an inertial reference frame; the electronic processor circuit performs the steps of projecting the specific force vectors into an inertial reference frame by using the rotation data; comparing the two specific force vectors as projected into said reference frame with each other in order to determine a difference between them; and monitoring variation in this difference over time.
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公开(公告)号：US11346664B2
公开(公告)日：2022-05-31
申请号：US16908295
申请日：2020-06-22
摘要： A level includes a frame supporting a plurality of vials and having an aperture disposed on an end of the level. The level also includes an end cap assembly detachably coupled to the end of the frame. The end cap assembly includes an end cap and a retainer. A portion of the end cap is received in the aperture and is maintained in engagement with the frame by the retainer.
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公开(公告)号：US20220155776A1
公开(公告)日：2022-05-19
申请号：US16953089
申请日：2020-11-19
申请人： TUSIMPLE, INC.
发明人： Chenzhe QIAN , Chenghao GONG , Fuheng DENG
IPC分类号： G05D1/00 , G01C25/00 , G01S17/931 , G01S7/497 , G01S13/86
摘要： Technique for performing multi-sensor collaborative calibration on a vehicle is disclosed. A method includes obtaining, from at least two sensors located on a vehicle, sensor data items of an area that comprises a plurality of calibration objects; determining, from the sensor data items, attributes of the plurality of calibration objects; determining, for the at least two sensors, an initial matrix that describes a first set of extrinsic parameters between the at least two sensors based at least on the attributes of the plurality of calibration objects; determining an updated matrix that describes a second set of extrinsic parameters between the at least two sensors based at least on the initial matrix and a location of at least one calibration object; and performing autonomous operation of the vehicle using the second set of extrinsic parameters and additional sensor data received from the at least two sensors.
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公开(公告)号：US20220146282A1
公开(公告)日：2022-05-12
申请号：US17648992
申请日：2022-01-26
申请人： TUSIMPLE, INC.
发明人： Xiaoling Han , Zehua Huang
IPC分类号： G01C25/00 , G01C11/04 , G01S17/10 , G01S7/48 , G01C9/06 , G06T7/80 , H04N17/00 , G01S7/4865 , G01S17/931 , G01S17/46 , G01S17/42 , G01S17/48 , G01S17/89
摘要： Technique for performing camera calibration on a vehicle is disclosed. A method of performing camera calibration includes emitting, by a laser emitter located on a vehicle and pointed towards a road, a first laser pulse group towards a first location on a road and a second laser pulse group towards a second location on the road, where each laser pulse group includes one or more laser spots. For each laser pulse group: a first set of distances are calculated from a location of a laser receiver to the one or more laser spots, and a second set of distances are determined from an image obtained from a camera, where the second set of distances are from a location of the camera to the one or more laser spots. The method also includes determining two camera calibration parameters of the camera by solving two equations.
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