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Highway long-tunnel entrance section daytime illumination optimizing method

A technology of highways and optimization methods, applied in the field of traffic safety, which can solve problems such as not being clearly solved

Inactive Publication Date: 2013-11-06
CHANGAN UNIV
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  • 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

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  • Highway long-tunnel entrance section daytime illumination optimizing method
  • Highway long-tunnel entrance section daytime illumination optimizing method
  • Highway long-tunnel entrance section daytime illumination optimizing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0126] Nanwutai Tunnel Expressway Long Tunnel Entrance Section (Daytime)

[0127] 1. Determination of lighting control parameters

[0128] After using EyeLink II to collect eye movement data in Nanwutai Tunnel, follow the above steps to establish the relational expression of (t, l), and select the appropriate visual adaptation time as the lighting for the driver to adapt to the visual requirements of the environmental illumination changes at the entrance of the tunnel during the daytime. The control parameters are shown in the table below.

[0129] The control parameters (t,l) required by the drivers at the entrance of the tunnel to the change of ambient illumination in the daytime

[0130]

[0131] The lighting control parameters (t,l) obtained from the above calculations for the driver to adapt to the visual requirements of the environmental illuminance changes at the entrance of the tunnel during the day refer to when the driver’s visual adaptation time is t, if the dr...

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PUM

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Abstract

The invention discloses a highway long-tunnel entrance section daytime illumination optimizing method, which comprises the following steps: collecting tunnel environment illumination, driver visual adaptation time and driver pupil area data; establishing a driver pupil area and illumination model, an illumination and tunnel length model, and a driver visual adaptation model; working out a three-dimensional curved surface according to relationship among the driver pupil area, the visual adaptation time and the corresponding environment illumination by utilizing software; finally establishing a function model as per parameters obtained from the curved surface, and computing to solve the relationship among tunnel length, car speed and tunnel optimized illumination. The method can solve the problem of dark adaptation caused by illumination difference during traveling in a tunnel at night, reduces traffic accidents induced by visual disturbance, and meanwhile can greatly reduce power consumption of lighting facilities in the tunnel.

Description

technical field [0001] The invention relates to the field of traffic safety, in particular to a daytime lighting optimization method for the entrance 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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
Inventor 刘浩学赵炜华谢陈江林淼
Owner CHANGAN UNIV
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