智能疏散诱导系统的声音、视觉诱导机制

Sound and Visual Guidance Mechanism of Intelligent Evacuation Guidance System

提出人员行为的“偏向度”和“动态标识”的基本概念，给出“动态标识”的工作原理，建立“动态标识”对人群疏散影响的数学描述---人员选择安全出口的概率表达式，研究“动态标识”与人视觉效应的关系，给出“动态标识”的光源照度指标范围为0.65~1.02 lx。通过不同特征人群的疏散实验，分析“偏向度”对人群疏散行为的作用机制，研究照度、人群密度与疏散时间的相互关系，得到人群必需的疏散时间T2。实验结果表明：在照度满足人视觉效应的前提下，“动态标识”频闪周期的调整能够改变疏散人员选择出口的概率，达到人群均衡疏散和T2＆lt;T1的目的。

The paper proposes the basic concepts of “deflection” and “dynamic identifies” of human behavior, gives the working principles of “dynamic identifies”, establishes the mathematical description of“dynamic identifies” on crowd evacuation-probability expressions for selection of emergency exit, studies the relationship between “ dynamic identifies” and human visual effect and provides the range （ 0 . 6~ 1. 02 1x） of light illuminance indexes of “dynamic identifies” . The mechanism of action of “deflection”on crowd evacuation behavior is analyzed and the relationship among illuminance, crowd density and evacuation time is studied through the evacuation experiment on crowds with different characteristics to obtain the necessary evacuation time of T2 . The result shows that the adjustment of strobe cycle“dynamic identifies” will change the probability for selecting the exits by evacuees to reach the balanced population evacuation with the evacuation time T2 less than T1 on the premise that the illuminance meets the human visual effect.