面向城市居民健康光环境需求的LED广告屏设置研究

Research on LED Advertising Screen Setting for the Healthy Lighting Environment Needs of Urban Residents

我国城市夜景照明发展迅速,广泛使用LED广告屏所产生的光侵扰直接或间接影响周边居民的身心健康。从居民主观感受出发,对中国五个城市的22块LED广告屏光侵扰进行主客观研究。基于我国商住混合的城市布局与不同光环境分区的基本背景亮度范围,确定LED广告屏光侵扰的六项影响因素;通过正交试验法模拟分析,影响因素权重由高到低依次为屏幕亮度、屏幕面积、屏幕与窗口水平直线距离、相对窗口垂直高度、屏幕与窗口表面法线水平夹角、背景亮度。最后,对LED广告屏光侵扰影响因素的控制提出合理化建议。

China's urban night lighting has developed rapidly,and the light trespass caused by the wide use of LED advertising screens directly or indirectly affects the physical and mental health of surrounding residents.Starting from the subjective feelings of residents,a subjective and objective study is conducted on the light trespass of 22 LED advertising screens in five cities in China.Based on the mixed urban layout of commercial and residential areas in China and the basic background brightness range of different lighting environment zones,six influencing factors of LED advertising screen light trespass are determined;through orthogonal experimental simulation analysis,the weight of influencing factors from high to low is screen brightness,screen area,horizontal linear distance between screen and window,relative vertical height,horizontal angle between screen and window surface normal,background brightness.Finally,reasonable suggestions on the control of influencing factors of LED advertising screen light trespass are put forward.