基于操控行为和A~*算法的船舶人员疏散仿真

Simulation of ship crowd evacuation based on manipulation behavior and A~* algorithm

针对紧急情况下复杂船舶环境中的人员疏散问题,从微观上考虑障碍物、出口数量、楼梯口位置以及人员速度对个体人员疏散路径的影响,提出操控行为和改进A*算法相结合的方法,实现多目标寻路及船舶多层甲板上的人员疏散.为每个虚拟人增加预判功能模块,检测障碍物及其他虚拟人行动,并采取避让行动.采用Unity3D引擎实现疏散过程的三维可视化仿真,并进行了疏散过程的数据统计与分析.仿真结果与实际疏散过程比较接近.

Aiming at the complex environment of ship emergency evacuation, the effects of obstacles, number of export, position of stairs and person speed on individual personnel evacuation route were considered, and a combination method of manipulation behavior and improved A^ ＊ algorithm was proposed to realize multi-targets routing and crowd evacuation on multi-decks. The anticipation module was introduced for every virtual person to detect obstacles and motions of other virtual persons, and take evasive actions. Unity 3D was used to achieve the simulation of 3D visualization of evacuation process, and the data statistics and analysis of the evacuation process were carried out. Simulation results are close to actual evacuation process.