LIDAR CONTROLLING METHOD AND APPARATUS AND ELECTRONIC DEVICE

    公开(公告)号:US20240151823A1

    公开(公告)日:2024-05-09

    申请号:US18386995

    申请日:2023-11-03

    CPC classification number: G01S7/4815 G01S7/4802 G01S7/4816 G01S7/4817

    Abstract: This application discloses a LiDAR controlling method, the LiDAR includes a laser emission array and a laser receiving array, and the method includes: in a measurement cycle, determining at least one emission block to be turned on in a current measurement cycle from the laser emission array, where the laser emission array includes multiple emission blocks, and each emission block includes multiple emission units; controlling at least one emission block to emit a laser beam according to a preset rule; and controlling a receiving block in the laser receiving array that corresponds to the at least one emission block to receive a laser echo, where the laser echo refers to an echo formed after the laser beam is reflected by a target object.

    LIDAR DEVICE AND RANGING ADJUSTMENT METHOD

    公开(公告)号:US20250060462A1

    公开(公告)日:2025-02-20

    申请号:US18801597

    申请日:2024-08-12

    Inventor: Changsheng GONG

    Abstract: The present disclosure provides a LiDAR device and its ranging adjustment method. The ranging adjustment method involves first calibrating the echo intensities at different pixel positions in receiving units of the LiDAR device and then determining the corresponding correction coefficients. Based on these correction coefficients, the method corrects the intensity data output by the pixels at different positions, ensuring consistency in the intensity data output by the corresponding pixels of the same receiving unit.

    CIRCUIT, METHOD, AND RADAR FOR DETECTING AMBIENT LIGHT

    公开(公告)号:US20240310496A1

    公开(公告)日:2024-09-19

    申请号:US18426328

    申请日:2024-01-29

    CPC classification number: G01S7/487 G01S7/4861 G01S17/931

    Abstract: The present application relates to a circuit, a method, and a radar for detecting ambient light. The circuit comprises: a photosensitive element, which is configured to convert a received light signal into a current signal; an electrical signal conditioning circuit, coupled to the photosensitive element, which is configured to convert the current signal into a voltage signal; a demodulation processing unit, coupled to the electrical signal conditioning circuit, which is configured to convert the voltage signal into a digital signal based on a voltage threshold; and a digital processing unit, coupled to the demodulation processing unit, which is configured to process the digital signal to obtain ambient light information.

    LIDAR DEVICE AND RANGING ADJUSTMENT METHOD OF THE SAME

    公开(公告)号:US20230400577A1

    公开(公告)日:2023-12-14

    申请号:US18207735

    申请日:2023-06-09

    Inventor: Changsheng GONG

    CPC classification number: G01S17/32 G01S7/4861 G01S7/4865 G01S17/89

    Abstract: The present disclosure provides a LiDAR device and a ranging adjustment method of the same. The ranging adjustment method includes: obtaining position information of a receiving unit corresponding to a to-be-scanned emission unit, and querying a table to obtain an attenuation coefficient matching the receiving unit; calculating a number of continuous laser beam emissions or an emission power of the emission unit corresponding to the receiving unit in a frame of a scanning image based on the attenuation coefficient; driving the emission unit to emit a laser beam based on the number of emissions or the emission power, simultaneously driving the receiving unit corresponding to the emission unit to receive a corresponding echo laser beam signal, and superimposing the echo laser beam signal into corresponding histogram data; and determining distance information of a to-be-detected object based on the histogram data.

    RADAR DATA PROCESSING METHOD, TERMINAL DEVICE, AND COMPUTER-READABLE STORAGE MEDIUM

    公开(公告)号:US20230059799A1

    公开(公告)日:2023-02-23

    申请号:US17893110

    申请日:2022-08-22

    Inventor: Changsheng GONG

    Abstract: This application is applicable to the field of radar technologies, and provides a radar data processing method, a terminal device, and a computer-readable storage medium. The method includes: obtaining radar data collected by a receiving area array; if the radar data is saturated, performing data fusion processing based on a floodlight distance value to obtain a fusion result; and determining a distance of a target object based on the fusion result. The method can accurately obtain an actual distance of the target object, effectively reduce a measurement error, improve calculation accuracy, and resolve an existing problem of a large deviation of a measurement result when an actual echo waveform cannot be effectively restored because a signal received by the radar is over-saturated when a laser is directly irradiated on a target object with high reflectivity.

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