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:
Jun. 03, 2025
Filed:
Feb. 24, 2022
China Coal Technology&engineering Group Shenyang Engineering Company, Liaoning, CN;
Long Ma, Liaoning, CN;
Kun Fang, Liaoning, CN;
Xu Qian, Liaoning, CN;
Zhenxin Li, Liaoning, CN;
Changna Guo, Liaoning, CN;
Mingying Xu, Liaoning, CN;
Zhifu Li, Liaoning, CN;
Xiaoxu Zou, Liaoning, CN;
Yan Zhang, Liaoning, CN;
Dong Wang, Liaoning, CN;
Abstract
Provided is a moving target positioning capability testing device for a coal mine, including a timing unit, a control unit, a laser emitting unit, a laser receiving unit and a constant-speed traveling device, wherein multiple groups of clocks, laser receivers and laser emitters, as test points, are arranged; and the constant-speed traveling device is used to drive positioning identification cards fixed on a positioning vehicle to move forwards from a position outside a coverage boundary of a positioning sub-station in a constant-speed manner, count time of the clocks, and calculate a difference between a position of the positioning vehicle fixed with the positioning identification cards after moving a distance at the same time as a receiving time recorded by a moving target positioning system server and a position of the clock as a dynamic error evaluation value of the moving target positioning ability.