公开(公告)号：US12253635B1

公开(公告)日：2025-03-18

申请号：US18976245

申请日：2024-12-10

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Jinwen Xie

IPC: G01C3/08 ,  G01S7/4911 ,  G01S17/34 ,  G01S17/58

Abstract: A LiDAR range and speed measurement method and a LiDAR, are disclosed. Through the technical solution provided by the embodiment of the present application, it is possible to determine whether Doppler aliasing occurs based on a first local oscillator signal generated by a first laser and a second local oscillator signal generated by a second laser, the first local oscillator signal including multiple segments of first continuous wave signals, the second local oscillator signal including multiple segments of second continuous wave signals, the second continuous wave signal including a first swept frequency signal and a first constant frequency signal. In the event of Doppler aliasing, a first algorithm is used to calculate the distance and/or speed of the target object relative to the LiDAR, thereby improving the accuracy of the LiDAR ranging and speed measurement.

公开(公告)号：US12199682B2

公开(公告)日：2025-01-14

申请号：US17983355

申请日：2022-11-08

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Ben Niu ,  Jing Wang ,  Lin Zhu

IPC: H04B10/548 ,  H04B10/564 ,  H04B10/40 ,  H04B10/60

Abstract: This disclosure provides a method for nonlinearly calibrating linear frequency modulation of an optical signal, an apparatus for nonlinearly calibrating linear frequency modulation of an optical signal, a computer-readable storage medium, and an electronic device. The method includes: in an ith frequency modulation cycle, obtaining a relationship between a modulation voltage signal Vi(t) input into a light source and an actual frequency signal fi(t) of an optical signal output by the light source, to obtain an actual association relationship fi(V) corresponding to the ith frequency modulation cycle, where i is a positive integer; based on a target frequency modulation signal fg(t) and the actual association relationship fi(V), determining a modulation voltage signal Vj(t) corresponding to a jth frequency modulation cycle, where j is i+1; and inputting a modulation voltage signal Vj(t) into the light source, to implement frequency modulation of the optical signal in the jth frequency modulation cycle.

公开(公告)号：US20250012904A1

公开(公告)日：2025-01-09

申请号：US18759999

申请日：2024-06-30

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Huazhou CHEN

IPC: G01S7/487 ,  G01S7/481 ,  G01S7/484 ,  G01S17/931

Abstract: This application pertains to the field of radar technology and provides a radar control method, device, terminal equipment, and computer-readable storage medium. The radar control method includes: determining a target receiving channel; adjusting an emitting channel grouping according to the target receiving channel, where the emitting channel corresponding to the target receiving channel and the emitting channel corresponding to the non-target receiving channel are in different emitting channel groupings; and controlling the emitting channels to re-emit the detection signals according to the adjusted emitting channel grouping.

公开(公告)号：US12169253B2

公开(公告)日：2024-12-17

申请号：US18235877

申请日：2023-08-20

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Shen Jiang

IPC: G01S7/48 ,  G01S7/4861 ,  G01S7/487 ,  G01S7/489 ,  G01S17/10

Abstract: The present application provides a lidar receiving apparatus, a lidar system, a laser ranging method, a laser ranging controller, and a computer readable storage medium. The lidar receiving apparatus includes: a photodetector, which is configured to receive a reflected laser signal and to convert the reflected laser signal into a current signal when a bias voltage of the photodetector is greater than a breakdown voltage of the same; a ranging circuit, which is connected with the photodetector and configured to calculate distance data according to the current signal; and a power control circuit, which is connected with the photodetector and configured to control the bias voltage applied to the photodetector according to a predefined rule.

公开(公告)号：US20240361448A1

公开(公告)日：2024-10-31

申请号：US18767986

申请日：2024-07-10

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Changsheng GONG

IPC: G01S13/86 ,  G01S7/4863 ,  G01S13/08 ,  G01S17/08

CPC classification number: G01S13/865 ,  G01S13/08 ,  G01S17/08 ,  G01S7/4863

Abstract: This application 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; in response to the radar data being saturated, performing data fusion processing based on a floodlight distance value to obtain a fusion result; determining a distance value of a target object based on the fusion result; and correcting the distance value of the target object based on a distance between a flooding unit and the target object and a distance between a receiving unit and the target object.

公开(公告)号：US12111354B2

公开(公告)日：2024-10-08

申请号：US18131344

申请日：2023-04-05

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Yumin Liao ,  Junling Zang ,  Yueqing Yang

IPC: G01R31/317

CPC classification number: G01R31/31727

Abstract: A detection circuit of clock anomaly and method, a clock circuit, a chip, and a radar are provided. The detection circuit of clock anomaly includes: a first clock frequency determining unit, configured to determine a first clock frequency of a received first clock signal; a reference determining unit, configured to determine a reference corresponding to the first clock signal, where the reference is determined based on a second clock signal or a timestamp; and a clock anomaly detection unit, connected to the first clock frequency determining unit and the reference determining unit separately and configured to perform anomaly detection on the first clock signal based on the first clock frequency and the reference. This application can improve reliability of the clock signal, thereby improving personal safety and property safety of a user.

公开(公告)号：US12066299B2

公开(公告)日：2024-08-20

申请号：US18124046

申请日：2023-03-21

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Jiajun Mou

IPC: G01C21/00 ,  G01C21/32

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.

公开(公告)号：US12056938B2

公开(公告)日：2024-08-06

申请号：US18528753

申请日：2023-12-04

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Zhiwei Xing

IPC: G06V20/58 ,  G06V10/22 ,  G06V10/26 ,  G06V10/98 ,  G06V20/70

CPC classification number: G06V20/586 ,  G06V10/225 ,  G06V10/26 ,  G06V10/98 ,  G06V20/70

Abstract: This disclosure provides a parking space identification method, a parking space identification apparatus, a computer-readable storage medium, and an electronic device, and relates to the field of smart transportation technology. The method includes: obtaining an around-view image of a target vehicle and determining a target region from the around-view image; segmenting the target region in a target direction to obtain multiple grids, where the target direction is perpendicular to a driving direction of the target vehicle; and determining a parking space based on image semanteme information corresponding to the multiple grids separately.

公开(公告)号：US12050287B2

公开(公告)日：2024-07-30

申请号：US18226254

申请日：2023-07-26

Applicant: SUTENG INNOVATION TECHNOLOGY CO., LTD.

Inventor： Junlin Chen

IPC: G01S7/484 ,  G01S7/481 ,  H01S5/042

CPC classification number: G01S7/484 ,  H01S5/0428 ,  G01S7/4814

Abstract: The present application discloses a laser emitting circuit and a LiDAR. The laser emitting circuit includes an energy charging circuit, an energy transfer circuit, and a plurality of energy release circuits. The plurality of energy release circuits are connected in parallel. The energy charging circuit is connected to the energy transfer circuit to store electrical energy. The energy transfer circuit is connected to the energy charging circuit and the plurality of energy release circuits to transfer the electrical energy stored in the energy charging circuit to the energy transfer circuit. The energy transfer circuit includes an energy storage capacitor and a floating-ground diode. Each energy release circuit is configured to drive a laser diode to emit light by using the electrical energy stored in the energy transfer circuit, and the energy release circuit includes an energy release switch element, the laser diode, and a clamping diode.

公开(公告)号：US20240241226A1

公开(公告)日：2024-07-18

申请号：US18405029

申请日：2024-01-05

Applicant: Suteng Innovation Technology Co., Ltd.

Inventor： Congcong Zhu

IPC: G01S7/481 ,  G01B7/30

CPC classification number: G01S7/4817 ,  G01B7/30

Abstract: The present disclosure relates to the technical field of LiDAR, and provides a galvanometer motor and LiDAR. The galvanometer motor includes a stator assembly and a rotor assembly. The stator assembly includes a housing and a stator winding. The stator winding is mounted inside the housing. The rotor assembly includes a first shaft, a second shaft, a magnetic core, and a lens. The first shaft is rotatably disposed in the housing. The stator winding is connected to an alternating current to generate the alternating magnetic field. The magnetic core is driven by the alternating magnetic field to drive the entire rotor assembly to rotate, thereby rotating the lens. The magnetic core, and the second shaft are connected in sequence, the length of the rotor assembly is shortened, which is beneficial to the miniaturization design of the galvanometer motor and the LiDAR.