The simulation of a crowd evacuating public buildings can be an important reference in planning the layout of buildings and formulating evacuation strategies. This paper proposes an agent-based crowd model; a crowd evacuation navigation simulation model is proposed for the multi-obstacle environment. We introduce the concept of navigation factor to describe the proximity of the navigation point to the exit. An algorithm for creating navigation points in multi-obstacle environment is proposed along with the global navigation and local navigation control algorithms of the crowd. We construct a crowd evacuation simulation prototype system with different simulation scenes using the scene editor. We conduct the crowd evacuation simulation experiment in the multi-obstacle scene, recording and analyzing the relevant experimental data. The simulation prototype system can be used to derive the evacuation time of the crowd and analyze the evacuation behavior of the crowd. It is expected to provide a visual deduction method for crowd management in an evacuation emergency.

人群疏散公共建筑的模拟可以为规划建筑布局和制定疏散策略提供重要参考。本文提出了一种基于主体的人群模型。针对多障碍环境提出了疏散人群导航仿真模型。我们引入导航因子的概念来描述导航点到出口的接近度。提出了一种在多障碍环境下创建导航点的算法，以及人群的全局导航和局部导航控制算法。我们使用场景编辑器构建了具有不同模拟场景的人群疏散模拟原型系统。我们在多障碍场景中进行人群疏散模拟实验，记录并分析相关实验数据。仿真原型系统可用于推导出人群的疏散时间并分析人群的疏散行为。期望为疏散紧急情况下的人群管理提供一种视觉演绎方法。