公开(公告)号：US20230067391A1

公开(公告)日：2023-03-02

申请号：US17898389

申请日：2022-08-29

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Zhaohui SHI

IPC: G01S7/48 ,  G01S17/10 ,  G01S7/487

Abstract: The present application discloses a LiDAR occlusion detection method and apparatus, a storage medium, and a LiDAR. The method includes: obtaining detected echo data, obtaining distance information of each point in the echo data, comparing the distance information with a preset distance range, and in response to the distance information being within the preset distance range, determining that the LiDAR is occluded. In the present application, it can be detected in real time whether the LiDAR is occluded, without affecting transmittance of the LiDAR or increasing manufacturing costs of the LiDAR.

公开(公告)号：US20240361436A1

公开(公告)日：2024-10-31

申请号：US18636214

申请日：2024-04-15

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Zhaohui SHI

IPC: G01S7/486 ,  G01S17/10

CPC classification number: G01S7/4868 ,  G01S17/10

Abstract: Embodiments of the present application provide a laser ranging method, device, and a LiDAR. The method includes: obtaining the quantity of light leading point cloud points in a first preset region in the current frame of point cloud, where the light leading point cloud points are point cloud points corresponding to echoes received by a receiver within a light leading period, and the light leading period is a period less than a first preset duration, starting from an emission moment of a laser beam corresponding to the light leading point cloud points; and adjusting the gain of the receiver within the light leading period to reduce the quantity of the light leading point cloud points.

公开(公告)号：US20220365183A1

公开(公告)日：2022-11-17

申请号：US17868661

申请日：2022-07-19

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Zhaohui SHI

IPC: G01S7/4865 ,  G01S17/10

Abstract: Embodiments of this application disclose a laser ranging method, apparatus, and LiDAR, and pertain to the ranging field. The method includes: emitting a ranging laser signal; receiving a reflected laser signal formed after the ranging laser signal is reflected by a target object; determining a first measured distance value based on a time difference between an emitting time of the ranging laser signal and a receiving time of the reflected laser signal; determining a second measured distance value of an internal signal link; and obtaining an actual distance value of the target object based on the first measured distance value and the second measured distance value. In the embodiments of this application, stability of the measured actual distance value of the target object can be ensured when an environmental factor changes. Impact of the environmental factor on the laser ranging is reduced, and precision of the laser ranging is improved.

公开(公告)号：US20230112106A1

公开(公告)日：2023-04-13

申请号：US17962510

申请日：2022-10-09

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Zhaohui SHI

IPC: G01S7/481

Abstract: The present application discloses an abnormal field of view recognition method and device, a storage medium, and a MEMS LiDAR. The method includes respectively adjusting angles of a galvanometer in an X axis and a Y axis when the MEMS LiDAR is started; acquiring echo data from scanning a window at the adjusted angles of the galvanometer in the X axis and the Y axis; acquiring distances, from the echo data, between an upper edge, a lower edge, a left edge, and a right edge of the window and the MEMS LiDAR; and determining whether a field of view of the galvanometer is abnormal or not based on the distances between the upper edge, the lower edge, the left edge, and the right edge of the window and the MEMS LiDAR.

公开(公告)号：US20230121544A1

公开(公告)日：2023-04-20

申请号：US17967003

申请日：2022-10-17

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Zhaohui SHI

IPC: G01S7/487 ,  G01S7/48

Abstract: A LiDAR performance detection method, a device, and a computer storage medium are provided. The method includes: acquiring a target signal in a target monitoring mode within a blanking interval; determining a measurement value in the target monitoring mode based on the target signal in the target monitoring mode within the blanking interval; and determining that the transceiver module of the LiDAR is abnormal when the measurement value in the target monitoring mode is not within a preset range.