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    LIDAR AND VEHICLE
    2.
    发明公开
    LIDAR AND VEHICLE 审中-公开

    公开(公告)号：EP4451013A1

    公开(公告)日：2024-10-23

    申请号：EP22914981.0

    申请日：2022-12-28

    申请人： Huawei Technologies Co., Ltd.

    发明人： CHEN, Shineng ,  ZHAO, Bo ,  DING, Mingqi ,  HUAN, Qiang

    IPC分类号： G01S17/08 ,  G01S7/481 ,  G01S17/02 ,  G01S17/931

    摘要： Embodiments of this application provide a lidar and a vehicle. The lidar includes a bracket and an emission assembly. The emission assembly includes a substrate, a circuit board, an optical lens, a laser, and a temperature control device. The substrate is connected to the bracket, the optical lens and the circuit board are separately connected to a side that is of the substrate and that backs onto the bracket, the laser is connected to a side that is of the circuit board and that backs onto the substrate, the temperature control device is connected to a side that is of the circuit board and that faces the substrate, a hole is disposed in the substrate, the temperature control device and the bracket are connected to each other in the hole, and a thermal gel is disposed between the temperature control device and the bracket. Embodiments of this application provide the lidar and the vehicle, to resolve a temperature control problem of the laser.

    SCANNING DEVICE FOR LASER RADAR AND CONTROL METHOD THEREFOR, AND LASER RADAR
    5.
    发明公开
    SCANNING DEVICE FOR LASER RADAR AND CONTROL METHOD THEREFOR, AND LASER RADAR 审中-实审

    公开(公告)号：EP4428576A1

    公开(公告)日：2024-09-11

    申请号：EP22888844.2

    申请日：2022-06-13

    申请人： Hesai Technology Co., Ltd.

    发明人： GAO, Yongfeng ,  XIANG, Shaoqing

    IPC分类号： G01S17/08 ,  G01S7/481 ,  G01S7/48

    摘要： A scanning device for a laser radar and a control method therefor, and a laser radar. The scanning device comprises a resonance electric motor and a scanning mirror, wherein the resonance electric motor comprises a rotor and a stator, the rotor being deflected from a balance position to a preset position around a rotating axis, and the stator comprising a return assembly adapted to return the rotor to the balance position around the rotating axis; the scanning mirror is adapted to reflect a light beam for optical scanning; and the scanning mirror is connected to the resonance electric motor to implement a reciprocating swing of the scanning mirror. The scanning device can implement a higher-frequency and larger-amplitude reciprocating swing of the scanning mirror with a relatively smaller driving power, which is conducive to implementing the reciprocating swing of the scanning mirror at a certain frequency with low power consumption and a large angle, and is conducive to overcoming the problem of the laser radar scanning field being limited due to the scanning mirror having an excessively small size.

    CONTROL METHOD AND APPARATUS, LIGHT DETECTION AND RANGING, AND TERMINAL DEVICE
    7.
    发明公开
    CONTROL METHOD AND APPARATUS, LIGHT DETECTION AND RANGING, AND TERMINAL DEVICE 审中-实审

    公开(公告)号：EP4403959A1

    公开(公告)日：2024-07-24

    申请号：EP21959707.7

    申请日：2021-10-09

    申请人： Huawei Technologies Co., Ltd.

    发明人： ZHOU, Yilun ,  SHI, Xianling ,  CAO, Guoliang ,  HUANG, Zhizhen ,  YU, Anliang

    IPC分类号： G01S17/08

    CPC分类号： G01S17/08

    摘要： A control method and apparatus, a LiDAR, and a terminal device are provided, to improve accuracy of pulse detection in the pulse control field. The method includes: controlling a transmit module to transmit a first pulse train and a second pulse train, where the first pulse train includes at least two first-type pulses and at least one second-type pulse, the second pulse train includes at least one first-type pulse and/or at least one second-type pulse, and a power of the first-type pulse is greater than a power of the second-type pulse. The high-power first-type pulse is used to detect a far-field target, and the low-power second-type pulse is used to detect a near-field target, so that accuracy of detecting the far-field target and the near-field target can be effectively improved, and point cloud quality of the LiDAR can be improved. In addition, the at least two first-type pulses are transmitted in the first pulse train, so that the far-field target can be detected by using the at least two first-type pulses, thereby further improving a detection effect of the far-field target and quality of a far-field point cloud.