Patents Assigned to HESAI TECHNOLOGY CO., LTD.
  • Patent number: 11525900
    Abstract: A laser system is provided. The laser system comprises: a seed laser configured to produce a sequence of seed light pulses, wherein the sequence of seed light pulses are produced with variable time intervals in a sweep cycle; a pump laser configured to produce pump light having variable amplitude in the sweep cycle; and a control unit configured to generate a command to the pump laser to synchronize the pump light with the sequence of seed light pulses.
    Type: Grant
    Filed: August 20, 2019
    Date of Patent: December 13, 2022
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventor: Zhengqing Pan
  • Patent number: 11474207
    Abstract: A Lidar system is provided. The Lidar system comprises: a set of light sources configured to emit a plurality of light beams; a set of optical fiber elements, wherein each of the set of light sources is optically coupled to a first end of one or more optical fiber elements from the set of optical fiber elements; and at least one mounting unit comprising a structure configured to receive a second end of the set of optical fiber elements at one or more directions thereby affecting a direction of the plurality of light beams individually.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: October 18, 2022
    Assignee: Hesai Technology Co. Ltd.
    Inventors: Rui Wang, Xuezhou Zhu, Na Li, Jiasheng Li, Hongguang Wang, Shaoqing Xiang, Yifan Li
  • Patent number: 11346952
    Abstract: A light detection and ranging system is provided for improving imaging accuracy and measurement range. The light detection and ranging system may comprise: a light source configured to emit a multi-pulse sequence into a three-dimensional environment, in which the multi-pulse sequence comprises multiple light pulses having a temporal profile; a photosensitive detector configured to detect light pulses returned from the three-dimensional environment and generate an output signal indicative of an amount of optical energy associated with a subset of the light pulses; and one or more processors electrically coupled to the light source and the photosensitive detector, and the one or more processors are configured to: generate the temporal profile based on one or more real-time conditions; and determine one or more parameters for selecting the subset of light pulses.
    Type: Grant
    Filed: February 28, 2020
    Date of Patent: May 31, 2022
    Assignee: Hesai Technology Co., Ltd.
    Inventors: Zhengqing Pan, Shaoqing Xiang, Yifan Li, Kai Sun
  • Patent number: 11346926
    Abstract: The present invention provides a detection device and a method for adjusting a parameter thereof. The device includes a real-time collection module, configured to collect and obtain environment information in real time; a real-time location information obtaining module, configured to obtain location information in real time; a parameter determining module, configured to determine a value of a target parameter of the detection device based on at least either the obtained environment information or the obtained location information; and a parameter adjustment module, configured to adjust the parameter of the detection device in real time based on the determined value of the target parameter. Based on the present invention, the parameter of the detection device can be adjusted in real time, and the detection device can adapt to diversified road conditions and improve detection accuracy.
    Type: Grant
    Filed: July 15, 2020
    Date of Patent: May 31, 2022
    Assignee: Hesai Technology Co., Ltd.
    Inventors: Liangchen Ye, Shengping Mao, Rui Wang, Xuezhou Zhu, Shaoqing Xiang, Yifan Li, Shixiang Wu
  • Publication number: 20220120870
    Abstract: A receiver for a laser radar, including: a printed circuit board (PCB) substrate, where the PCB substrate includes a first side and a second side; a photoelectric sensor array, including a plurality of photoelectric sensors, where the photoelectric sensor array is disposed on the first side of the PCB substrate; and a readout chip, where the readout chip is disposed on the second side of the PCB substrate, coupled to the photoelectric sensor array, and configured to receive and read an output of a photoelectric sensor in the photoelectric sensor array.
    Type: Application
    Filed: December 29, 2021
    Publication date: April 21, 2022
    Applicant: Hesai Technology Co., Ltd.
    Inventors: Kaimin YAN, Shaoqing XIANG
  • Publication number: 20210382147
    Abstract: A light detection and ranging (Lidar) system includes: a main shaft, a radar rotor, an upper cartridge plate, a top cover, and a base. The upper cartridge plate is fixedly disposed relative to the radar rotor. The upper cartridge plate is closer to the base than to the top cover in an axial direction of the Lidar system. The main shaft is disposed perpendicular to the base and is located between the upper cartridge plate and the base. The Lidar system can shorten wiring of every module, is convenient to install and maintain, and has an improved mechanical reliability.
    Type: Application
    Filed: August 17, 2021
    Publication date: December 9, 2021
    Applicant: Hesai Technology Co., Ltd.
    Inventors: Jie CHEN, Linsen DING, Yongji MU, Shaoqing XIANG
  • Patent number: 11029394
    Abstract: A Lidar system is provided. The Lidar system may comprise: a plurality of light sources configured to emit a plurality of light beams, the plurality of light sources are mounted to a first mounting apparatus comprising a cooling feature; a plurality of optical fiber elements, and each of the plurality of light sources is optically coupled to an input end of one or more optical fiber elements from the plurality of optical fiber elements; and a second mounting apparatus comprising at least one mounting unit coupled to an emitting end of the plurality of optical fiber elements, and the at least one mounting unit is configured to control an output direction of the plurality of light beams individually, and a distribution pattern of the plurality of light beams emitted from the emitting end of the plurality of optical fiber elements.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: June 8, 2021
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Jiasheng Li, Hongguang Wang, Shaoqing Xiang
  • Patent number: 10983197
    Abstract: A Lidar system and method is provided for adaptive control. The Lidar system comprises: an array of emitters each of which is individually addressable and controlled to emit a multi-pulse sequence, at least a subset of the emitters are activated to emit multi-pulse sequences concurrently according to an emission pattern; an array of photosensors each of which is individually addressable, at least a subset of the photosensors are enabled to receive light pulses according to a sensing pattern, each of the subset of photosensors is configured to detect returned light pulses returned and generate an output signal indicative of an amount of optical energy associated with at least a subset of the light pulses; and one or more processors electrically coupled to the array of emitters and the array of photosensors and configured to generate the emission pattern and the sensing pattern based on one or more real-time conditions.
    Type: Grant
    Filed: March 23, 2020
    Date of Patent: April 20, 2021
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Xuezhou Zhu, Kai Sun, Shaoqing Xiang, Jin Yang, Chenluan Wang, Xugang Liu, Wenyi Zhu, Tingyu Yao, Shixiang Wu, Hui Yin
  • Patent number: 10901074
    Abstract: Methods and systems for providing eye-safe compatible receiver for a light detection and ranging system. The light detection and ranging system comprises; an emitting unit comprising a light source configured to emit a sequence of light pulses of a first wavelength into a three-dimensional environment; and a receiving module comprising a detector for detecting light pulses of a second wavelength, in which the second wavelength is shorter than the first wavelength, the receiving module further comprising a wavelength converter coupled to the detector and configured to convert an echo signal of the emitted light pulses into the light pulses of the second wavelength.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: January 26, 2021
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Zhengqing Pan, Shixiang Wu, Shaoqing Xiang, Kai Sun
  • Patent number: D935915
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: November 16, 2021
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Linsen Ding, Shaoqing Xiang
  • Patent number: D938839
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: December 21, 2021
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Jiasheng Li, Shaoqing Xiang
  • Patent number: D939366
    Type: Grant
    Filed: May 12, 2020
    Date of Patent: December 28, 2021
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Shang Tian, Shan Li, Zhanlin Zhang, Shaoqing Xiang
  • Patent number: D946429
    Type: Grant
    Filed: January 14, 2020
    Date of Patent: March 22, 2022
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Shilin Shen, Shaoqing Xiang
  • Patent number: D952483
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: May 24, 2022
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Chao Zhang, Shaoqing Xiang, Xin Zhao
  • Patent number: D959305
    Type: Grant
    Filed: April 29, 2020
    Date of Patent: August 2, 2022
    Assignee: HESAI TECHNOLOGY CO., LTD.
    Inventors: Jiasheng Li, Xuqian Jiang, Chao Zhang, Shan Li, Shaoqing Xiang