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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 two-way single-lane highway traffic tunnel with a length of 1 km and a hole height of 6 m, the DIALUX software is used to simulate the LED lighting brightness value of each segment of the tunnel. In order to facilitate the control system to collect natural light, vehicle speed and traffic information fusion modeling to achieve the output of analog linear dimming control objectives, the article uses a uniform size of the tunnel LED lighting, according to “Highway Tunnel Lighting Design Code” to calculate After the initial standard values of tunnel lighting segment and lighting layout simulation, the total uniformity of road surface brightness is 0.669-0.940, the longitudinal uniformity of midline brightness of road surface is 0.528-0.911, the average illuminance of each section is 66-1 790 lx, % ~ 50.91% The dimming margin defined by the standard provides lighting layout reference for dimming.