公路隧道照明中阈限亮度差研究
Research on Minimum Luminance Threshold in Road Tunnel Lighting
蔡贤云 1田心怡 1翁季2
作者信息
- 1. 重庆交通大学建筑与城市规划学院,重庆 400074
- 2. 重庆大学建筑城规学院,重庆 400045
- 折叠
摘要
对比显示系数能够衡量公路隧道照明方式和照明质量,为了得到对比显示系数需要先确定阈限亮度差的取值情况.基于对比显示系数与阈限亮度差之间的关系,采用定值刺激法通过计算机模拟完成阈限亮度差实验.实验分别得到了正负亮度对比、小目标物呈现时间2s情况下不同识别几率时的阈限亮度对比数据,经统计分析得到正负亮度对比下的阈限亮度差数学模型;最后依据观察者年龄、小目标物正负亮度对比和小目标物呈现时间来修正阈限亮度差.
Abstract
The contrastrevealing coefficient qc can measure the road tunnel lighting quality and lighting method.In order to obtain the contrast revealing coefficient,it is necessary to determine the value of minimum luminance threshold.Based on the relationship between contrast revealing coefficient and minimum luminance threshold,using the fixed value stimulation method,the minimum luminance threshold experiment can be carried out by computer sim-ulation.In the experiment,the luminance contrast thresholdat different probability of perception was obtained under small target presentation time(2s)and positive and negative luminancecontrast.Then,mathematical model of minimum luminance threshold under positive and negative luminance contrast was obtained through statistical analysis.Theminimum luminance threshold can be corrected by age correction coefficient,the correction coefficient of positive and negative luminance contrast and the correction coefficient of small target exposure time.
关键词
隧道照明/阈限亮度差/阈限亮度对比/定值刺激法/对比显示系数Key words
Tunnel lighting/Minimum luminance threshold/Luminance contrast threshold/Fixed value stimulation method/Contrastrevealing coefficient引用本文复制引用
基金项目
国家自然科学基金(52108071)
国家自然科学基金(51278507)
重庆市自然科学基金面上项目(cstc2020jcyj msxmX0973)
重庆市教育委员会科学技术研究项目(KJQN202000715)
出版年
2024
NETL
NSTL
维普
万方数据