Patents by Inventor Shili QIU

Shili QIU 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).

  • Method and equipment for transformation of point cloud coordinates of structure plane of deep-buried tunnel based on target device
    Patent number: 11808914
    Abstract: The embodiment of the present application discloses a method and equipment for transformation of point cloud coordinates of structure plane of deep-buried tunnel based on a target device. Before performing laser scanning on a measured surface, the embodiment of the present application makes the third plate surface close to the measured surface by adjusting the target device, and makes the bubbles of the first circular level and the second circular level in a centered state; respectively extracting point cloud coordinates of the three cross targets from the point cloud data, and acquiring the first tendency of the third plate surface from the digital display of three-dimensional electronic compass; determining the second tendency of the third plate surface according to the point cloud coordinates; converting the coordinates in the point cloud data to geodetic coordinates according to the first tendency and the second tendency.
    Type: Grant
    Filed: March 17, 2023
    Date of Patent: November 7, 2023
    Assignees: Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, South-Central Minzu University
    Inventors: Shili Qiu, Ping Li, Shaojun Li, Hao Zhang, Dingping Xu, Quan Jiang
  • METHOD AND EQUIPMENT FOR TRANSFORMATION OF POINT CLOUD COORDINATES OF STRUCTURE PLANE OF DEEP-BURIED TUNNEL BASED ON TARGET DEVICE
    Publication number: 20230305183
    Abstract: The embodiment of the present application discloses a method and equipment for transformation of point cloud coordinates of structure plane of deep-buried tunnel based on a target device. Before performing laser scanning on a measured surface, the embodiment of the present application makes the third plate surface close to the measured surface by adjusting the target device, and makes the bubbles of the first circular level and the second circular level in a centered state; respectively extracting point cloud coordinates of the three cross targets from the point cloud data, and acquiring the first tendency of the third plate surface from the digital display of three-dimensional electronic compass; determining the second tendency of the third plate surface according to the point cloud coordinates; converting the coordinates in the point cloud data to geodetic coordinates according to the first tendency and the second tendency.
    Type: Application
    Filed: March 17, 2023
    Publication date: September 28, 2023
    Applicants: Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, South-Central Minzu University
    Inventors: Shili QIU, Ping LI, Shaojun LI, Hao ZHANG, Dingping XU, Quan JIANG