Patents by Inventor ZAIQIAN LUO

ZAIQIAN LUO 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).

  • Point cloud data acquisition method and device under situation of no GNSS signal
    Patent number: 11385359
    Abstract: The present invention provides a point cloud data acquisition method and device under a situation of no GNSS signal. The method comprises: re-sampling line data acquired from a topographic map to obtain discrete line data; generating a full-second PPS pulse in a simulating manner; counting by using a distance measuring instrument, sampling the count, when it is detected that the full-second PPS pulse is received, calculating position information at a current moment; simulating a GNSS satellite protocol according to the position information at the current moment; parsing the GNSS satellite protocol by using a point cloud data acquisition module to complete time synchronization, and controlling a LiDAR to acquire point cloud data; parsing the GNSS satellite protocol by using an inertial measurement module, and recording attitude determination positioning data in real time to generate POS data; and optimizing the POS data to obtain accurate point cloud data.
    Type: Grant
    Filed: December 25, 2017
    Date of Patent: July 12, 2022
    Assignees: CHONGQING SURVEY INSTITUTE, CHONGQING CYBERCITY SCI-TECH CO., LTD.
    Inventors: Hanxin Chen, Zejun Xiang, Chuan Long, Jing Ming, Yonggang Gou, Nan Lv, Han Chen, Zaiqian Luo, Feng Li, Zhi Huang, Xiaolin Hu
  • POINT CLOUD DATA ACQUISITION METHOD AND DEVICE UNDER SITUATION OF NO GNSS SIGNAL
    Publication number: 20210223408
    Abstract: The present invention provides a point cloud data acquisition method and device under a situation of no GNSS signal. The method comprises: re-sampling line data acquired from a topographic map to obtain discrete line data; generating a full-second PPS pulse in a simulating manner; counting by using a distance measuring instrument, sampling the count, when it is detected that the full-second PPS pulse is received, calculating position information at a current moment; simulating a GNSS satellite protocol according to the position information at the current moment; parsing the GNSS satellite protocol by using a point cloud data acquisition module to complete time synchronization, and controlling a LiDAR to acquire point cloud data; parsing the GNSS satellite protocol by using an inertial measurement module, and recording attitude determination positioning data in real time to generate POS data; and optimizing the POS data to obtain accurate point cloud data.
    Type: Application
    Filed: December 25, 2017
    Publication date: July 22, 2021
    Applicants: CHONGQING SURVEY INSTITUTE, CHONGQING CYBERCITY SCI-TECH CO., LTD.
    Inventors: HANXIN CHEN, ZEJUN XIANG, CHUAN LONG, JING MING, YONGGANG GOU, NAN LV, HAN CHEN, ZAIQIAN LUO, FENG LI, ZHI HUANG, XIAOLIN HU