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:
Aug. 05, 2025
Filed:
Jan. 24, 2025
Powerchina Northwest Engineering Corporation Limited, Xi'an, CN;
Lanzhou Jiaotong University, Lanzhou, CN;
Zufeng Li, Xi'an, CN;
Haowen Yan, Lanzhou, CN;
Wenjun Zhao, Xi'an, CN;
Shuwen Yang, Lanzhou, CN;
Xiaoning Su, Lanzhou, CN;
Haixing Shang, Xi'an, CN;
Shengjie Di, Xi'an, CN;
Zhixuan Miao, Xi'an, CN;
Zhao Zhang, Xi'an, CN;
Mingbo Liu, Xi'an, CN;
Powerchina Northwest Engineering Corporation Limited, Xi'an, CN;
Lanzhou Jiaotong University, Lanzhou, CN;
Abstract
A method for controlling engineering projection deformation includes: calculating, based on known coordinates of an engineering key region, a change rate of a length deformation function per kilometer in a first direction caused by a height difference of the engineering key region and a change rate of the length deformation function per kilometer in the first direction caused by a distance from a central meridian of a Gaussian projection zone of the engineering key region; solving a distance between a meridian where a center of the engineering key region is located and a new central meridian; solving an elevation of a compensation projection plane; and performing comprehensive projection deformation compensation based on the elevation of the compensation projection plane and the distance between the meridian where the center of the engineering key region is located and the new central meridian, so as to realize the controlling of engineering projection deformation.