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    DIRECTION FINDING SYSTEM AND ANTENNA ARRAY
    1.
    发明公开
    DIRECTION FINDING SYSTEM AND ANTENNA ARRAY 审中-公开

    公开(公告)号：EP4462597A1

    公开(公告)日：2024-11-13

    申请号：EP24171036.7

    申请日：2024-04-18

    申请人： Alaris Antennas (Pty) Ltd

    发明人： VALE, Christopher Alfred Wolfgang

    IPC分类号： H01Q3/24 ,  H01Q9/18 ,  H01Q21/20 ,  H01Q21/29 ,  G01S3/00

    摘要： A direction finding antenna array comprises at least a first dipole antenna element 14, a second dipole antenna element 16 and a third dipole antenna element 18. The dipole elements comprise respective first ends 14.1, 16.1, 18.1, respective second ends 14.2, 16.2, 18.2 and a respective feed-point 14.3, 16.3, 18.3. The first, second and third dipole elements are arranged in spaced relationship relative to one another in a non-linear pattern. In respect of each dipole element in the array (and taking dipole element 14 as an example), the first end 14.1 is connected by first and second electrical connections 24, 26 to the first end of each of two adjacent dipole elements 16, 18 in the array and the second end 14.2 is connected by third and fourth electrical connections 28, 30 to the second end of each of the two adjacent dipole elements 16, 18.

    CALIBRATION METHOD, CALIBRATION DEVICE, CALIBRATION SYSTEM AND READABLE STORAGE MEDIUM
    2.
    发明公开
    CALIBRATION METHOD, CALIBRATION DEVICE, CALIBRATION SYSTEM AND READABLE STORAGE MEDIUM 审中-公开

    公开(公告)号：EP4462157A1

    公开(公告)日：2024-11-13

    申请号：EP22902728.9

    申请日：2022-05-17

    申请人： Hesai Technology Co., Ltd.

    发明人： XIAO, Pengchuan ,  SHAO, Zhenlei ,  LV, Chengsheng ,  LIAO, Ren ,  CHAI, Xiaolin ,  XIANG, Shaoqing

    IPC分类号： G01S7/497

    摘要： A calibration method, a calibration device (M10), a calibration system, and a readable storage medium, the calibration method comprises: receiving a point cloud determined by a LiDAR (LS1) from a field of view, the point cloud being in a LiDAR coordinate system (S11); receiving a set of survey points determined from the field of view by a survey device (CH1), the set of survey points being in a survey coordinate system (S12); based on the point cloud and the set of survey points, determining a first transformation parameter between the LiDAR coordinate system and the survey coordinate system (S13); based on the first transformation parameter and the position and orientation information of the vehicle (CA1) in the survey coordinate system (S14), determining a calibration parameter (S14) between the LiDAR coordinate system and the vehicle coordinate system of the vehicle (CA1). Both the calibration efficiency and the calibration precision can be improved, and batch calibration is facilitated.

    TIME-BASED CORRECTION TECHNIQUE FOR MULTISTATIC RADAR SYSTEM
    3.
    发明公开
    TIME-BASED CORRECTION TECHNIQUE FOR MULTISTATIC RADAR SYSTEM 审中-公开

    公开(公告)号：EP4462152A1

    公开(公告)日：2024-11-13

    申请号：EP24170340.4

    申请日：2024-04-15

    申请人： NXP B.V.

    发明人： Jansen, Feike Guus

    IPC分类号： G01S7/40 ,  G01S13/00 ,  G01S13/34 ,  G01S13/87 ,  G01S13/42 ,  G01S13/58 ,  G01S13/931

    摘要： A system includes first and second radar transceivers (100A,100B), a processor (250), and a non-transitory computer-readable medium (180) storing machine instructions. The machine instructions cause the processor (250) to determine a first frequency offset a 1 and a first initial time offset τ initial ;1 between a first clock signal for the first radar transceiver (100A) and a reference clock (260) for the processor (250), and the processor (250) determines a first clock drift for the first clock signal relative to the reference clock (260) based on the frequency offset a 1 and the time offset τ initial;1 . The processor (250) determines a second frequency offset a 2 and a second initial time offset τ initial;2 between a second clock signal for the second radar transceiver (100B) and the reference clock (260), and a second clock drift for the second clock signal relative to the reference clock (260) based on the frequency offset a 2 and the time offset τ initial ;2 . The processor (250) then compensates for the first and second clock drift.

    POSITIONSBESTIMMUNG DURCH ENTFERNUNGSBESTIMMUNG IM SPEKTRUM
    4.
    发明公开
    POSITIONSBESTIMMUNG DURCH ENTFERNUNGSBESTIMMUNG IM SPEKTRUM 审中-公开

    公开(公告)号：EP4462149A1

    公开(公告)日：2024-11-13

    申请号：EP24158006.7

    申请日：2024-02-16

    申请人： Lambda: 4 Entwicklungen GmbH

    发明人： Reimann, Rönne

    IPC分类号： G01S5/02

    摘要： Die Erfindung betrifft eine Positionsbestimmung eines in einem Raum angeordneten Objekts durch Auswertung des von dem Objekt gesendeten und/oder empfangenen Funksignals in Umgebungen mit Multipathing. Die Aufgabe wird dadurch gelöst, dass aus dem empfangenen Funksignal unter Nutzung mindestens einer Phasenmessung Signalanteile mindestens zweier Signalpfade unterschiedlicher Signalpfadlänge des empfangenen Funksignals ermittelt werden und als eine oder mehrere mögliche Position(en) des ersten Objekts (O1) mindestens eine mögliche Ausgangsposition des Funksignals bestimmt wird, wobei die mindestens eine mögliche Ausgangsposition so bestimmt wird, dass ein von der mindestens einen möglichen Ausgangsposition ausgesendetes hypothetisches Funksignal zum zweiten Objekt (O2) über Signalpfade propagieren kann, deren Signalpfadlängen mit denen der mindestens zwei Signalpfade korrelieren.

    SYSTEMS AND METHODS OF MAINTAINING MAP FOR AUTONOMOUS DRIVING
    5.
    发明公开
    SYSTEMS AND METHODS OF MAINTAINING MAP FOR AUTONOMOUS DRIVING 审中-公开

    公开(公告)号：EP4462076A2

    公开(公告)日：2024-11-13

    申请号：EP24170897.3

    申请日：2024-04-17

    申请人： TuSimple, Inc.

    发明人： HUNG, Wan-Ting ,  WANG, Anping ,  XU, Ke ,  ZHAO, Guoxiang ,  ZHANG, Bolun ,  YU, Nan

    IPC分类号： G01C21/00 ,  G01S17/89

    摘要： The present disclosure provides methods and systems of maintaining a map suitable for guiding autonomous driving. In some embodiments, the method may include receiving a sensor dataset acquired by a sensor subsystem, wherein: the sensor dataset includes information about a road, the sensor subsystem comprises multiple different types of sensors; determining, by a processor, a confidence level by comparing the sensor dataset and the map that includes prior information about the road; in response to determining that the confidence level exceeds a confidence threshold, processing the map by the processor; and storing the processed map as an electronic file, wherein the processed map is configured to guide an autonomous vehicle to operate on the road.

    MOWING SYSTEM CAPABLE OF ENHANCING POSITIONING PRECISION
    6.
    发明公开
    MOWING SYSTEM CAPABLE OF ENHANCING POSITIONING PRECISION 审中-公开

    公开(公告)号：EP4461115A1

    公开(公告)日：2024-11-13

    申请号：EP24171487.2

    申请日：2024-04-22

    申请人： Durq Machinery Corp.

    发明人： HUANG, Yu-Chia ,  CHOU, Fu-Peng

    IPC分类号： A01D34/00 ,  G01S19/14 ,  G01S19/36 ,  G05D1/00

    摘要： A mowing system (10) includes a charging station (20), a base station (30), and a mowing robot (40). The base station (30) and the charging station (20) are set independently from each other. The base station (30) has a first communication unit (322) and a first GPS antenna (324). The mowing robot (40) has a second GPS antenna (44) and a control unit (46) electrically connected with the second GPS antenna (44) and wirelessly connected with the first GPS antenna (324), such that the control unit (46) receives a first GPS signal obtained by the first GPS antenna (324) and a second GPS signal obtained by the second GPS antenna (44) and determines a positioning coordinate of the mower robot (40) according to the first GPS signal and the second GPS signal. As such, the installation position of the base station (30) is not restricted by the surrounding environment or the charging station (20) so as to enhance positioning precision.