隧道照明过渡段亮度动态需求探讨

随着隧道照明建设的规模及数量的越来越大,隧道运营电力费用也越来越高;同时隧道照明质量跟不上高速发展的公路建设,严重影响行车安全性。本文首先简要论述了现阶段隧道照明系统存在的问题:过量照明、照度分布不均匀、不能调光或仅能有级调光。然后比较了国内的和CIE的隧道照明标准的异同。在CIE适应曲线的基础上推导出了洞外亮度变化时隧道过渡段的亮度需求公式,选取典型的照明区域作为研究对象,给出了动态调光方案。LED灯光效高、响应时间短,调光方便等诸多优点,非常适合动态调光,因此在隧道照明中具有广阔的应用前景。

Discussion on the Dynamic Requiring Luminance in the Transition Section of the Tunnel Lighting

With the scale of the tunnel lighting construction becoming larger and larger, the cost of tunnel operating gets more and more expensive. At the same time, the quality of tunnel lighting can not keep up with the rapid development of highway construction, which impacts seriously on traffic safety. Firstly, this paper briefly discusses the problems in the current tunnel lighting system： excessive lighting, uneven distribution of the illumination and unadjustable or adjusting in several levels. Then, compare the tunnel lighting standards of our country with CIE. On the basis of the CIE adapting curve, infer the formula of requiring luminance in the transition section of the tunnel when the luminance varying continuously outside of tunnel. Select typical lighting areas for studying, and introduce dynamic light-adjusting method. LED lamp has high efficiency, short response time, convenient adjustment and many other advantages. Therefore, it is very suitable for dynamic adjusting and has bright prospects in tunnel lighting.