一种面向人群仿真的改进型社会力模型研究

在人群仿真领域,社会力模型的应用和改进研究仍是一个热点问题。在Helbing社会力模型的基础上,引入人群个体之间的排斥力和转向力,改进了人群在正常状态下的行走行为模型。对恐慌人群,提出了期望速度、人群密度、恐慌值的计算方法,拟定一些约束条件来改善动画显示效果。在微机上使用Direct3D实现了人群行为动画,实验结果表明,改进的模型能够较好地模拟人群行为。

Study on Improved Social Force Model for Crowd Simulation

In the field of human crowd simulation,the research on the applications and the modification of social force model is still a hot topic.Based on Helbing’s social force model,the crowd’s psychology repulsive force and direction changing force were introduced respectively,and the model of crowd walking behavior was improved for normal situation.The computation method of expected velocity,crowd density and panic magnitude was set up for a panic crowd.A few constraint conditions were proposed for improving the animation effect.The crowd behavior animation was realized by Direct3d on PC.The experiment shows that the modified model can closely simulate crowd behavior.