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. 23, 2026
Filed:
Sep. 16, 2021
Beijing University of Technology, Beijing, CN;
Jiangbi Hu, Beijing, CN;
Yunpeng Guo, Beijing, CN;
Xiaojuan Gao, Beijing, CN;
Ronghua Wang, Beijing, CN;
BEIJING UNIVERSITY OF TECHNOLOGY, Beijing, CN;
Abstract
An installation method for roadway low-position lighting fixtures uses parameter measurement from a dynamic visual recognition experiment. Multiple fixture sets having respective preset color temperature and color rendering index pairs, or a configurable fixture set providing multiple such pairs, are tested at predetermined luminance levels and operating speeds on a dynamic experimental road with a randomly placed target. A test vehicle includes a speed detection device, and a tested driver wears an eye-tracker. Based on eye movement indicating target recognition, an operator marks a vehicle position at recognition and a vehicle position at passing the target to obtain a recognition distance. Samples of luminance and recognition distance are collected across luminance levels, speeds, lighting environments, and drivers. A recognition-distance-luminance model is fitted to derive a luminance threshold meeting a safe sight distance requirement, and fixtures are selected and installed along both sides of the road accordingly.