公路隧道LED照明数值模拟

The Simulation of LED Lighting Values on Tunnel

针对1 km长、洞高6 m的双向单车道公路交通隧道,采用DIALUX软件,模拟出隧道各段LED照明亮度值指标。为了便于控制系统采集自然光、车速和车流量信息进行融合建模,达到输出模拟量线性调光的控制目标,文中采用统一规格的隧道LED照明灯具,根据《公路隧道通风照明设计规范》,计算出隧道各照明段初始标准值,灯具布局模拟后,路面亮度总均匀度为0.669～0.940、路面中线亮度纵向均匀度为0.528～0.911,各段平均照度为66～1 790 lx,布光留有10%～50.91%标准定义的调光余量,为调光提供了灯具布局参考。

For a traffic tunnel which is one kilometer long and six meters tall,each section of the tunnel of the LED illumination brightness simulation by DIALUX. In this paper uses a unified specification LED tunnel lighting,in order to facilitate the control system to collect natural light,speed and traffic information,creating a model and reaches the output of analog linear dimming control objectives. According to ＂ highway tunnel ventilation lighting design specifications＂,Calculate the tunnel lighting segments each initial standard value,Post-layout simulation of the lamp,The overall surface brightness uniformity is 0.669～0.940,The centerline of road surface Longitudinal brightness uniformity is 0.528 ～ 0.911,Average illumination in the paragraphs is 66 ～ 1790 lx,Lighting layout have at least 10% ～50.91% standard definition dimming margin,To provide a lamp dimmer layout reference.