Patents by Inventor Liangchen YE

Liangchen YE has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230375682
    Abstract: A method for controlling a lidar and a lidar are provided. The method includes: emitting a first sequence of laser pulses, the first sequence of laser pulses including at least a first detection pulse and a second detection pulse coded at a time interval T; receiving a plurality of echo pulses; determining whether an overlay is present among the plurality of echo pulses; and controlling the lidar to emit a second sequence of laser pulses to perform re-detection based on a determination of whether the overlay is present among the plurality of echo pulses.
    Type: Application
    Filed: June 13, 2023
    Publication date: November 23, 2023
    Inventors: Fuwei HUANG, Congbo SHI, Liangchen YE, Shaoqing XIANG
  • Publication number: 20230341523
    Abstract: A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.
    Type: Application
    Filed: April 25, 2023
    Publication date: October 26, 2023
    Inventors: Yongfeng Gao, Shengping Mao, Liangchen Ye, Shaoqing Xiang
  • Patent number: 11668802
    Abstract: A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: June 6, 2023
    Assignee: Hesai Technology Co., Ltd.
    Inventors: Yongfeng Gao, Shengping Mao, Liangchen Ye, Shaoqing Xiang
  • Publication number: 20220236392
    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: Application
    Filed: April 11, 2022
    Publication date: July 28, 2022
    Inventors: Liangchen YE, Shengping MAO, Rui WANG, Xuezhou ZHU, Shaoqing XIANG, Yifan LI, Shixiang WU
  • 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: 20210278510
    Abstract: A distributed LiDAR comprises: an optical transceiver assembly, multiple distributed scanning units, and a distributed optical fiber connector assembly. The optical transceiver assembly includes: a light source emitting detection light, and a light receiving unit used for receiving a detection echo. The multiple distributed scanning units are distributed on the carrier of the distributed LiDAR. The distributed optical fiber connector assembly is in coupled connection with the optical transceiver assembly and the multiple distributed scanning units. The detection light emitted by the light source in the optical transceiver assembly is synchronously transmitted by the distributed optical fiber connector assembly to the multiple distributed scanning units. The multiple distributed scanning units emit the detection light to a detected area with a scanning device, and receive a reflected echo from the detected area.
    Type: Application
    Filed: May 6, 2021
    Publication date: September 9, 2021
    Inventors: Zhengqing PAN, Liangchen YE, Shaoqing XIANG, Yifan LI
  • Patent number: 11002835
    Abstract: A distributed LiDAR comprises: an optical transceiver assembly, multiple distributed scanning units, and a distributed optical fiber connector assembly. The optical transceiver assembly includes: a light source emitting detection light, and a light receiving unit used for receiving a detection echo. The multiple distributed scanning units are distributed on the carrier of the distributed LiDAR. The distributed optical fiber connector assembly is in coupled connection with the optical transceiver assembly and the multiple distributed scanning units. The detection light emitted by the light source in the optical transceiver assembly is synchronously transmitted by the distributed optical fiber connector assembly to the multiple distributed scanning units. The multiple distributed scanning units emit the detection light to a detected area with a scanning device, and receive a reflected echo from the detected area.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 11, 2021
    Assignee: Hesai Photonics Technology Co., Ltd.
    Inventors: Zhengqing Pan, Liangchen Ye, Shaoqing Xiang, Yifan Li
  • Publication number: 20210011138
    Abstract: A distributed LiDAR comprises: an optical transceiver assembly, multiple distributed scanning units, and a distributed optical fiber connector assembly. The optical transceiver assembly includes: a light source emitting detection light, and a light receiving unit used for receiving a detection echo. The multiple distributed scanning units are distributed on the carrier of the distributed LiDAR. The distributed optical fiber connector assembly is in coupled connection with the optical transceiver assembly and the multiple distributed scanning units. The detection light emitted by the light source in the optical transceiver assembly is synchronously transmitted by the distributed optical fiber connector assembly to the multiple distributed scanning units. The multiple distributed scanning units emit the detection light to a detected area with a scanning device, and receive a reflected echo from the detected area.
    Type: Application
    Filed: September 30, 2020
    Publication date: January 14, 2021
    Inventors: Zhengqing PAN, Liangchen YE, Shaoqing XIANG, Yifan LI
  • Publication number: 20200355803
    Abstract: A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.
    Type: Application
    Filed: January 9, 2020
    Publication date: November 12, 2020
    Inventors: Yongfeng Gao, Shengping Mao, Liangchen Ye, Shaoqing Xiang
  • Publication number: 20200348402
    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: Application
    Filed: July 15, 2020
    Publication date: November 5, 2020
    Inventors: Liangchen YE, Shengping MAO, Rui WANG, Xuezhou ZHU, Shaoqing XIANG, Yifan LI, Shixiang WU
  • Patent number: 10571552
    Abstract: A scanner and a method for controlling the scanner for a Lidar system are provided. The method comprises: producing a trigger signal by a positional sensor of the scanner; generating a single drive signal comprising a first component at a first frequency and a second component at a second frequency, the first component and the second component are superposed with a fixed phase relationship with aid of the trigger signal; transmitting the single drive signal to the scanner, and the scanner has resonant responses at the first frequency; and actuating the scanner to move in a first periodic motion at the first frequency about a first axis, and move in a second periodic motion at the second frequency about a second axis.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: February 25, 2020
    Assignee: HESAI PHOTONICS TECHNOLOGY CO., LTD.
    Inventors: Yongfeng Gao, Shengping Mao, Liangchen Ye, Shaoqing Xiang
  • Patent number: 10444356
    Abstract: A Lidar system may comprise: a laser configured to emit a laser beam; a reflector configured to receive the emitted laser beam and allow at least a portion of the emitted laser beam to transmit through the reflector, the at least the portion of the emitted laser beam being detection light; a two-dimensional scanning galvanometer; and a detector. The two-dimensional scanning galvanometer is configured to reflect the detection light to scan across an environment, receive at least a portion of the detection light reflected by a target in the environment, the at least the portion of the detection light reflected by the target being receiving light, and reflect the receiving light towards the reflector. The reflector is further configured to reflect the receiving light towards the detector. The detector is configured to measure the receiving light to detect the target.
    Type: Grant
    Filed: October 16, 2018
    Date of Patent: October 15, 2019
    Assignee: Hesai Photonics Technology Co., Ltd.
    Inventors: Shixiang Wu, Liangchen Ye, Rui Wang, Shaoqing Xiang, Yifan Li
  • Publication number: 20190113622
    Abstract: A Lidar system may comprise: a laser configured to emit a laser beam; a reflector configured to receive the emitted laser beam and allow at least a portion of the emitted laser beam to transmit through the reflector, the at least the portion of the emitted laser beam being detection light; a two-dimensional scanning galvanometer; and a detector. The two-dimensional scanning galvanometer is configured to reflect the detection light to scan across an environment, receive at least a portion of the detection light reflected by a target in the environment, the at least the portion of the detection light reflected by the target being receiving light, and reflect the receiving light towards the reflector. The reflector is further configured to reflect the receiving light towards the detector. The detector is configured to measure the receiving light to detect the target.
    Type: Application
    Filed: October 16, 2018
    Publication date: April 18, 2019
    Inventors: Shixiang WU, Liangchen YE, Rui WANG, Shaoqing XIANG, Yifan LI