| LED灯曲线隧道照明间距 |
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| 引用本文： | 韩直,王晶晶,关雨嫣.LED灯曲线隧道照明间距[J].西南交通大学学报,2022,57(2):434-439. |
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| 作者姓名： | 韩直 王晶晶 关雨嫣 |
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| 作者单位： | 1.重庆交通大学交通运输学院, 重庆4000412.招商局重庆交通科研设计院有限公司, 重庆400041 |
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| 基金项目： | 青海科技厅省重点研发项目（2017-SF-139） |
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| 摘 要： | 基于规范中并未考虑LED灯曲线隧道的布灯方式、布灯间距、曲率半径以及光线盲区之间的关系,考虑闪烁频率和盲区界域两约束条件,探究了不同布灯方式所允许的最大布灯间距和最大盲区面积.首先,针对单侧外侧布灯、单侧内侧布灯、双侧对称布灯及双侧交错布灯4种布灯方式,以平面几何的方法得到光线盲区面积、灯具间距和隧道曲率半径的关系式,...
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| 关 键 词： | 曲线隧道 盲区面积 几何 布灯间距 照明 |
| 收稿时间： | 2020-07-23 |
Lighting Spacing in Curved Tunnel Using LED Lights |
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| HAN Zhi,WANG Jingjing,GUAN Yuyan.Lighting Spacing in Curved Tunnel Using LED Lights[J].Journal of Southwest Jiaotong University,2022,57(2):434-439. |
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| Authors: | HAN Zhi WANG Jingjing GUAN Yuyan |
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| Affiliation: | 1.College of Traffic & Transportation, Chongqing Jiaotong University, Chongqing 400041, China2.Chongqing Communications Technology Research & Design Institute Co., Ltd., China Merchants Group, Chongqing 400041, China |
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| Abstract: | At present, there are no specified rules that clarify the relationship between the arrangement of LED lights, spacing of LED lights, curvaturer adius, and blind area. Thus, the maximum allowable spacing and maximum blind area are explored in terms of different luminaire arrangements with the two constraints of flicker frequency and blind area boundary. First of all, according to four luminaire arrangements, i.e., outside unilateral arrangement, inside unilateral arrangement, symmetrically bilateral arrangement, and alternate bilateral arrangement, the expression with respect to the blind area, luminaire spacing and tunnel curvature radiusis obtained with the aid of plane geometry, and through partial differential, their relationships are determined. Secondly, the relationship between the maximum allowable spacing and the parameters of the blind area boundary (car length and car width) is analyzed with the blind area boundary as the main constraint. Finally, by partial differential or algebraic method, different car types are used as examples for verifying the maximum allowable blind area and maximum allowable luminaire spacing with different luminaire arrangements. It is found when either the luminaire spacing or the curvature radius is settled, the blind area increases with the luminaire spacingor curvature radius.In the case of inside unilateral arrangement, the luminaire spacing increases with the car length or curvature radius. For outside unilateral arrangement, it increases with the car length or curvature radius, while decreasing with the car width. If the blind area is considered for bilateral arrangement, the luminaire spacing does not meet the requirements, indicating that only if luminaire spacing is large enough, the blind area exists. Through the comparison of different car models, it is concluded that inside unilateral arrangement is desirable for unilater alluminaire arrangement, and both symmetrically bilateral arrangement and alternate bilateral arrangement are acceptable for bilateral luminaire arrangement. |
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