【作者】 胡锟；

【导师】 杨路明；

【作者基本信息】 中南大学 ， 计算机应用， 2011， 硕士

【摘要】 随着社会财富的集中,城市人口密度日益增加,各种突发事件频繁发生,对于在人口聚集的场所举行大型的活动,必须预先对人员的疏散方案进行充分地准备,通过虚拟人群疏散行为的模拟评估各种应急的疏散方案,这具有极大的现实意义和实用价值。针对基于智能体的人群行为仿真方法存在的行为规则和行为决策机制不完善的问题,本文提出基于模糊逻辑的基本原理设计符合人脑思维特点的规则集和推理系统的方法,使得智能体能够在不同的环境下自主选择合理的目标逃生口,进而规划至目标的最短路径。通过构建虚拟场景的多层导航图简化了场景地图的位置信息,在分析和比较了Dijkstra算法和A*算法的基础上,研究了智能体不同情况下的路径规划最优方法,针对大场景个体数量级高的情况,一般的路径规划算法性能低下的问题,提出了预先规划路径和时间片规划路径方法,在不同程度上提高了路径规划的性能。智能体在仿真系统中的所有的运动均是通过一些基本操控行为的组合或叠加产生。通过分析自治智能体的基本特性,设计虚拟环境中智能体的各种操控行为。在分析和研究上述人群行为仿真的技术的基础上,集成这些关键技术和研究成果,研制了紧急情况下的人群驱散仿真系统,构建了分布式可扩展的仿真系统架构,实现对大型公共设施安全危机处置预案的计算机人群驱散运动仿真模拟。仿真系统的实验结果表面：模拟结果是接近现实情况的,关键方法和技术是有效的。更多还原

【Abstract】 As the concentration of wealth in society, the increasing density of urban population, a variety of unexpected events occur frequently, for a gathering place when hold a large event, the evacuation of people must be fully prepared to conduct evacuation, by the assessment of simulation of virtual people of emergency evacuation program is of great practical significance and value in use.For the problem of imperfect mechanism of decision-making and rules of the behavior which base on agent simulation, this paper presents the method of base on principles of fuzzy logic which meets the characteristics of thinking of brain and reasoning system rule set of human, making the agent can independently produced reasonable goal, and then planning the shortest path to the target.By building the multi-level navigation map simplifies the virtual scene graph.Based on studies of the Dijkstra algorithm and A* algorithm, provide the optimal path planning methods.For the problem about the low performance of the algorithm when in the large scene,we proposed two ways to improve the path planning performance.Agent Simulation System in all the movements are the combination or superposition generated of some basic manipulation. By analyzing the characteristics of autonomous agent,we design various manipulation in a virtual environment, we design group behavior of the agent at the same time.Based on the analysis and study of the simulation of crowd behavior, we build a distributed simulation system architecture which can be extended and developed an emergency simulation system to disperse the crowd. The results of simulation show:the results are close to reality and the key methods and techniques are effective.更多还原