LIDAR DEVICE AND RANGING ADJUSTMENT METHOD OF THE SAME

    公开(公告)号:US20230350010A1

    公开(公告)日:2023-11-02

    申请号:US18136322

    申请日:2023-04-18

    Inventor: Changsheng GONG

    CPC classification number: G01S7/295 G01S7/52025

    Abstract: The present disclosure provides a LiDAR device and a ranging adjustment method of the same. The ranging adjustment method includes: turning off a laser beam emission module and turning on a laser beam receiving module, to obtain histogram data of ambient light; adjusting detection efficiency of the laser beam receiving module based on the histogram data of the ambient light; turning on the laser beam emission module and the laser beam receiving module, to obtain histogram data of a current optical signal; and comparing the histogram data of the current optical signal with the histogram data of the ambient light, and determining histogram data of an echo signal and distance information of a to-be-detected object, based on a result of the comparison.

    TARGET DETECTION METHOD, LIDAR AND STORAGE MEDIUM

    公开(公告)号:US20230341529A1

    公开(公告)日:2023-10-26

    申请号:US18134028

    申请日:2023-04-12

    Inventor: Changsheng GONG

    CPC classification number: G01S7/487 G01S17/10 G01S7/484 G01S7/4865

    Abstract: This application provides a target detection method, a LiDAR; and a storage medium. The method includes: obtaining an echo signal, where the echo signal is obtained by sampling a reflected wave received by the LiDAR; performing a matching operation on the echo signal and a preamble signal, to obtain a valid echo signal for a target object, where the preamble signal is obtained by sampling a reflected wave corresponding to a window; determining a threshold for the valid echo signal; determining a leading edge moment and a trailing edge moment based on the threshold; and determining a distance between the LiDAR and the target object based on the leading edge moment and the trailing edge moment.

    METHOD, DEVICE AND SYSTEM FOR PERCEIVING MULTI-SITE ROADBED NETWORK AND TERMINAL

    公开(公告)号:US20230228593A1

    公开(公告)日:2023-07-20

    申请号:US18124046

    申请日:2023-03-21

    Inventor: Jiajun MOU

    CPC classification number: G01C21/3841 G01C21/32 G01C21/3848

    Abstract: A method, a device and a system for perceiving a multi-site roadbed network are provided. The method includes: constructing a global grid map of the roadbed network that is marked with a position of the system for perceiving at least two roadbed base stations and a perceived range of the system; receiving the detected target list transmitted by each of the systems for perceiving at least two roadbed base stations, where the detected target list is the set of the preset detected targets; according to the position of each system for perceiving the roadbed base station, indexing into the global grid map the detected target list transmitted by each system for perceiving the roadbed base station to generate a global tracking list; and tracking the preset detected target in the detected target list transmitted by the system for perceiving the roadbed base station according to the global tracking list.

    GALVANOMETER AND LIDAR
    184.
    发明公开

    公开(公告)号:US20230213622A1

    公开(公告)日:2023-07-06

    申请号:US18084475

    申请日:2022-12-19

    Inventor: Yipeng LI

    CPC classification number: G01S7/4817 G02B26/101 G02B26/105 G02B26/0833

    Abstract: This application discloses a galvanometer and a LiDAR. The galvanometer includes a first shaft and a second shaft. A first shaft drive voltage is used to control the galvanometer to vibrate around the first shaft, a second shaft drive voltage is used to control the galvanometer to vibrate around the second shaft, and the first shaft drive voltage and the second shaft drive voltage are superimposed to drive the galvanometer. There are N working intervals in a second shaft drive period, and in the N working intervals, the second shaft drive voltage and the first shaft drive voltage jointly drive the galvanometer to form N scanning tracks. The N scanning tracks do not coincide and N is a positive integer.

    ANODE ADDRESSING DRIVE CIRCUIT, ADDRESSABLE DRIVE CIRCUIT, AND LASER EMISSION CIRCUIT

    公开(公告)号:US20230208099A1

    公开(公告)日:2023-06-29

    申请号:US18090414

    申请日:2022-12-28

    Inventor: Lee LI

    CPC classification number: H01S5/0428 H03K17/6871 H01S5/4025

    Abstract: This application discloses an anode addressing drive circuit, an addressable drive circuit, and a laser emission circuit. The anode addressing drive circuit includes: an anode addressing switch circuit, including an anode addressing switch element, where a first end is connected to an emission power supply, a second end of the anode addressing switch element is connected to an anode energy storage circuit, an anode addressing enabling end of the anode addressing switch element receives an anode addressing signal, and the anode addressing switch element is turned on or off under the control of the anode addressing signal; and an anode energy storage circuit, including an anode energy storage element and a current limiting element, where the anode energy storage element is configured to be charged through an output current of the emission power supply when the anode addressing switch circuit is turned on, and the current limiting element is configured to limit a current for charging the anode energy storage element.

    OBSTACLE DETECTION METHOD AND APPARATUS AND STORAGE MEDIUM

    公开(公告)号:US20230204779A1

    公开(公告)日:2023-06-29

    申请号:US18116245

    申请日:2023-03-01

    CPC classification number: G01S17/89 G01S17/931 G06V20/58

    Abstract: This application provides a data processing method and apparatus and a storage medium. The data processing method includes: obtaining K idle calculation blocks in real time, where K is greater than or equal to 1; invoking first K pieces of detected data from a cache stack in a preset priority sequence of detected data, and inputting the detected data into the K idle calculation blocks; sequentially processing K pieces of detected data on the K idle calculation blocks in the preset priority sequence; and integrating sensing calculation results of the K pieces of detected data in real time based on a boundary relationship between detection ranges of the K pieces of detected data, and outputting a sensing result.

    RANGING METHOD AND DEVICE, STORAGE MEDIUM, AND LIDAR

    公开(公告)号:US20230204741A1

    公开(公告)日:2023-06-29

    申请号:US18090573

    申请日:2022-12-29

    Inventor: Mingming MAO

    CPC classification number: G01S17/89 G01S17/06

    Abstract: This application discloses a ranging method and device, a storage medium, and a LiDAR. The method includes: determining an edge field of view and a central field of view; acquiring a light emission power for the edge field of view and a light emission power for the central field of view; compensating the light emission power for the edge field of view based on a difference between the light emission power for the edge field of view and the light emission power for the central field of view, and detecting a target object based on the light emission power for the central field of view and the compensated light emission power for the edge field of view.

    LIDAR ANTI-INTERFERENCE METHOD AND APPARATUS, STORAGE MEDIUM, AND LIDAR

    公开(公告)号:US20230204725A1

    公开(公告)日:2023-06-29

    申请号:US18087807

    申请日:2022-12-22

    CPC classification number: G01S7/4808 G01S7/4802 G01S17/89

    Abstract: This application discloses a LiDAR anti-interference method and apparatus, a storage medium, and a LiDAR. The method is applied to a LiDAR, and the LiDAR includes a laser emission array and a laser receiving array. The method includes determining at least two laser emission units to be turned on in a measurement period, controlling the at least two laser emission units to emit laser beams based on a preset rule, and controlling respectively corresponding laser receiving units of the at least two laser emission units to receive echo beams, to detect a target object. The at least two laser emission units to be turned on are in different laser emission groups, and the at least two laser emission units to be turned on satisfy a physical condition of no optical crosstalk.

    Optical scanning apparatus and lidar with extinction component

    公开(公告)号:US11662438B2

    公开(公告)日:2023-05-30

    申请号:US17371050

    申请日:2021-07-08

    Inventor: Ji Wang Bin Tan Wei Wei

    Abstract: An apparatus in the field of optics technology, can include a reflector, a reflector substrate, and an extinction component. The reflector can be mounted on the reflector substrate. The extinction component can be arranged on a front surface of the reflector substrate. The reflector can be configured to reflect incident light signals. The extinction component can be configured to reduce the scattered light produced by the incident light signal on the reflector substrate. An optical scanning device (for example, lidar) having such features may greatly reduce the scattered light inside the lidar, reduce the detection blind area caused by the stray light, and greatly improve the receiving and detecting capabilities of the lidar.

    MIRROR ADJUSTING DEVICE, REFLECTING ASSEMBLY, LIDAR, AND INTELLIGENT DRIVING APPARATUS

    公开(公告)号:US20230161046A1

    公开(公告)日:2023-05-25

    申请号:US18094984

    申请日:2023-01-09

    CPC classification number: G01S17/931 G01S7/4972

    Abstract: A mirror adjusting device, a reflecting assembly, a. LiDAR, and an intelligent driving apparatus are provided. The mirror adjusting device includes a mounting bracket, a fixing bracket, and an elastic assembly. The mounting bracket includes a mirror mounting structure for mounting a mirror at one side and an adjusting part at the opposite side. The adjusting part includes a first curved wall protruding in a direction away from the mirror mounting structure, and the middle of the first curved wall is provided with a connecting structure. The fixing bracket includes a groove at one side and a through hole on the other side. The groove includes a second curved wall recessed toward the other side of the fixing bracket, and the first curved wall abuts against the second curved wall. The elastic assembly includes an elastic member and a connecting member.

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