Reflection Lighting System for Tunnel Lighting at Entrance Based on Sun Orientation Devices
ZHOU Yuanhui
LIU Xianming
SHI Lingna
CHEN Weimin
Abstract：Tunnel entrance is a key section between internal environment and external environment of tunnel. It is the emphasis in tunnel lighting design. In order to ensure traffic safety, strengthening illumination is needed in tunnel entrance, which consumes considerable electric energy. Aiming at this problem,a system using sunlight reflection principle in tunnel lighting is proposed, namely using three times reflection to direct sunlight from arbitrary direction into tunnel entrance for lighting. This paper introduces the structure of sun orientation device,and analyzes the lighting effect of tunnel entrance section by using one suit and ten suits respectively. The design of light distribution is validated on actual tunnel. Results show that,by using multiple sets of this system,the tunnel entrance lighting could be implemented to conform to national standards. Its control simplicity and energy utlization has significant advantages over existing technology.
Keywords：sun orientation devicehighway tunnelthreshold zonereflective lightingsunshine lighting
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 85-90 )