Highway long tunnel exit section night lighting optimizing method

A technology for highways, optimization methods, applied in the field of traffic safety, capable of solving problems that cannot be clearly solved

Inactive Publication Date: 2013-11-06
CHANGAN UNIV
View PDF1 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Although the above studies have achieved some results, none of them can clearly solve the above-mentioned related problems.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Highway long tunnel exit section night lighting optimizing method
  • Highway long tunnel exit section night lighting optimizing method
  • Highway long tunnel exit section night lighting optimizing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0121] Nanwutai Tunnel Expressway Long Tunnel Exit Section (Night)

[0122] 1. Determination of lighting control parameters

[0123] After using EyeLink II to collect eye movement data in Nanwutai Tunnel, follow the steps above to establish the relational expression of (t, l), and select the appropriate visual adaptation time as the lighting control for drivers to adapt to the visual requirements of environmental illumination changes at night at the tunnel exit The parameters are shown in the table below.

[0124] The control parameters (t,l) required by drivers at the tunnel exit at night for changes in ambient illumination

[0125]

[0126] The lighting control parameters (t,l) obtained from the above calculations for nighttime tunnel exit drivers to adapt to the visual requirements of environmental illuminance changes refer to the requirements for environmental lighting when the driver’s visual adaptation time is t, if the vision is comfortable and there is no large se...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a highway long tunnel exit section night lighting optimizing method. The method includes that tunnel lighting parameters, driver vision adapting time and driver pupil area data are collected, and a driver pupil area and illumination model, a relation model of illumination and the distance to a tunnel exit and a driver vision adapting model are built. A three-dimensional curve among the driver pupil area, the vision adapting time and the corresponding environment illumination is made by using software. A functional model is built according to parameters obtained through the curve, and a relation among the distance to the tunnel exit, the speed and the tunnel optimized illumination is obtained according to calculation. By means of the method, a dark adaptation problem caused by illumination difference during driving in a tunnel environment at night can be solved, traffic accidents caused by vision disturbance are reduced, and tunnel lighting device power consumption can be greatly reduced.

Description

technical field [0001] The invention relates to the field of traffic safety, in particular to a nighttime lighting optimization method for the exit section of a long expressway tunnel Background technique [0002] As my country's highway construction gradually advances to the west, more and more highway tunnels have been built and put into operation. As a special structure on the road, the tunnel has the characteristics of closed environment and large differences between inside and outside, especially the difference in lighting environment is extremely obvious. Restricted by the structural and environmental characteristics, the tunnel has become a black spot or section with a high incidence of accidents on the road. Once a road traffic accident occurs, there will be difficulties in rescue, complicated traffic organization, and heavy losses, which will have a great impact on the operational efficiency of the road. In the system of human, vehicle, road and environment, the d...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
Patent Type & Authority Applications(China)
IPC IPC(8): G06Q10/04
Inventor 赵炜华刘浩学林淼谢陈江席海华
Owner CHANGAN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap