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:
Mar. 25, 2025
Filed:
Feb. 07, 2022
Chengdu University of Technology, Chengdu, CN;
Lubo Meng, Chengdu, CN;
Junqi Fan, Chengdu, CN;
Guosong Sun, Chengdu, CN;
Fuli Kong, Chengdu, CN;
Tianbin Li, Chengdu, CN;
Xiaoyan Shi, Chengdu, CN;
Wei Zhou, Chengdu, CN;
Enlai Liu, Chengdu, CN;
Xing Zhu, Chengdu, CN;
Chengdu University of Technology, Chengdu, CN;
Abstract
A method for monitoring large deformation of a surrounding rock of a tunnel based on an automatic targeting and ranging system includes: acquiring, by a camera module, a target monitoring image; identifying a center image position in the target monitoring image; performing, by a laser ranging module, an automatic targeting and ranging task according to the center image position; and calculating a deformation offset of each target of left wall targets, right wall targets and a vault target based on an automatic targeting and ranging result corresponding to the target. The method solves the problem that a laser ranging device fails to measure a target at a fixed angle and obtains a real and accurate deformation offset thereby greatly improving the reliability of the large deformation monitoring result of the surrounding rock of the tunnel.