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针对传统人群疏散模拟中基于多智能体模型不能准确表达人群躲避行为和缺少轻量级实现形式的问题,该文提出了一种改进的BOIDS模型躲避规则算法并实现基于WEB形式的人群疏散模拟。先用线球相交方法设置智能体的定义区域;再用球球相交方法计算智能体与障碍物间的距离;最后实现了智能体躲避障碍物行为,并实现针对具体疏散区域空间特征的人群疏散模拟轻量级表示。实验结果表明:改进算法能够准确地表达智能体躲避障碍物时的行为习性,研究成果可为相关管理者进行应急疏散指挥工作的开展提供信息化服务。
Aiming at the problem that the multi-agent model can not accurately express the crowd avoidance and the lack of lightweight implementation in the traditional crowd evacuation simulation, this paper proposes an improved BOIDS model avoidance rule algorithm and the Web-based crowd evacuation simulation. Firstly, the definition of the agent is set by using the intersection of ball and ball. Then the distance between the agent and the obstacle is calculated by the ball-and-sphere intersection method. Finally, the agent is evacuated to avoid the obstacle and the evacuation of the crowd for the spatial characteristics of the specific evacuation area Simulation of lightweight representation. The experimental results show that the improved algorithm can accurately represent the behavior habits of agents when avoiding obstacles and the research results can provide information services for the relevant managers to carry out emergency evacuation command work.