The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2025
Filed:
Nov. 22, 2024
China Railway Economic and Planning Research Institute Co., Ltd., Beijing, CN;
Nanjing Pioneer Awareness Information Technology Co., Ltd, Nanjing, CN;
Siming Tian, Nanjing, CN;
Zhengying Shi, Nanjing, CN;
Weike Xin, Nanjing, CN;
Shu Li, Nanjing, CN;
Jianxun Huo, Nanjing, CN;
Liewei Wang, Nanjing, CN;
Jie Lian, Nanjing, CN;
Guangbin Ni, Nanjing, CN;
Guoqiang Wu, Nanjing, CN;
Xinyan Wu, Nanjing, CN;
Xu Li, Nanjing, CN;
Yiteng Zhang, Nanjing, CN;
Abstract
A method and a system for automatically collecting multiple information of a tunnel during construction period are provided. A detection point and a detection line are formed by projecting a light source on the inner wall of the tunnel, and then the pixel position changes of the areas where the detection point and the detection line are located in different time periods are recorded by a measuring camera, and the detection point and the detection line are integrated and corrected with tunnel point cloud data as a reference standard to form an accurate four-dimensional model of the tunnel.