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| 导向标志可见域的实验研究 | |
| 引用本文： | 宋冰雪,吴宗之,谢昱姝,代宝乾,刘晨. 导向标志可见域的实验研究[J]. 中国安全生产科学技术, 2012, 8(2): 16-22 |
| 作者姓名： | 宋冰雪 吴宗之 谢昱姝 代宝乾 刘晨 |
| 作者单位： | 1. 北京科技大学,北京100083;北京市劳动保护科学研究所,北京100054 2. 中国安全生产科学研究院,北京,100029 3. 北京市劳动保护科学研究所,北京,100054 4. 首都经济贸易大学,北京,100070 |
| 基金项目： | 基金项目：国家科技支撑计划项目（编号：2011BAK01BOO） |
| 摘 要： | 在介绍可见域概念的基础上,将导向标志可见域转化为偏移角和观察距离的关系,开展了不同偏移角下导向标志观察距离的测量实验,分别测定了两种导向标志类型(电光源型和磷光型)在两种环境照度水平(正常照明和无照明)下,9种偏移角(0°、10°、20°、30°、40°、50°、60°、70°和80°)所对应的观察距离。实验发现随着偏移角的增加,观察距离非线性的减少,导向标志的可见域为椭圆形,该椭圆的短轴是偏移角为0°时的观察距离,该项实验的开展为导向标志可见域的确定提供了基础数据。 |
| 关 键 词： | 导向标志 可见域 人员疏散 |
Experimental study on the visibility catchment area of direction sign |
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| SONG Bing-xue , WU Zong-zhi , XIE Yu-shu , DAI Bao-qian , LIU Chen. Experimental study on the visibility catchment area of direction sign[J]. Journal of Safety Science and Technology, 2012, 8(2): 16-22 | |
| Authors: | SONG Bing-xue WU Zong-zhi XIE Yu-shu DAI Bao-qian LIU Chen |
| Affiliation: | 1.University of Science and Technology Beijing,Beijing 100083,China)(2.Beijing Municipal Institute of Labour Protection,Beijing 100054,China)(3.China Academy of Safety Science and Technology,Beijing 100029,China)(4.Capital University of Economics and Business,Beijing 100070,China) |
| Abstract: | Based on the introduction of the visibility catchment area of direction sign,the visibility catchment area of direction sign is quantified by the relationship of the bias angle with the observational distance.The experiments for measuring the observational distance of direction sign under different bias angles are conducted,and as a result the observational distance for two types of direction sign（electrically powered components and phosphorescent components）and two kinds of luminance level（normal lighting and no lighting） as well as nine bias angles（0°,10°,20°、30°、40°、50°、60°、70°、80°） are measured.It is found that with the increasing of bias angle,the observational distance will be reduced nonlinearly.The visibility catchment area of direction sign is an ellipse,and the size of ellipse short axis is equal to the observational distance under the 0 degree bias angle.The experiments establish the fundamental dataset for the calibration of the visibility catchment area of direction sign. |
| Keywords: | direction sign visibility catchment area pedestrian evacuation |
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