【作者】 杨宇；

【导师】 何高奇； 陈诚；

【作者基本信息】 华东理工大学 ， 计算机技术， 2015， 硕士

【摘要】 在体育馆、地铁站、商场、化工区等场所中,人群高度集中、空间结构封闭,使得突发事件发生时,复杂场景布局对疏散的影响较难分析。因此,对突发性强、影响环节多和发生频率高的灾害事故制定合理、有效的疏散策略,以减少突发事件带来的人员伤亡,对保障人员、财产安全有重大意义。本文通过建立动态可配置场景和设计有效的群体疏散算法来研究突发事件下的群体行为模拟。主要内容包括：(1)建立动态可配置场景。通过建立场景元素库,支持用户以交互的方式自定义构建突发事件的模拟场景。在交互式构建的场景中进行疏散模拟,以评估算法在不同场景中的疏散效率,并对场景中的布局进行优化。(2)回溯分析事故场景。为了科学的辅助应急指挥,本文研究了动态可配置场景的回溯分析。对突发事件进行记录,通过OGRE引擎实现事故3D场景的回放模拟,从而实现回溯分析。(3)提出群体疏散的多目标决策算法。通过预先检测群体疏散过程中存在的碰撞行为,提出群体疏散变向策略；引入最近出口选择模型以及疏散决策因子,建立群体疏散的多目标决策函数；通过OGRE引擎实现突发事件下群体目标决策模拟,制定群体疏散策略。通过场景的动态配置、回溯分析和疏散的多目标决策,可以为科学、高效的应急指挥提供基础依据,辅助应急疏散和场馆建设。更多还原

【Abstract】 It is the enclosed structure and high-dense people of crowded places, such as gymnasium, subway, shopping mall and chemical district that increase the difficulty of analysis their influence on the evacuation. Moreover, the disaster accidents have the characters of sudden, dramatic and frequency. Therefore, it is great significant to build the reasonable and effective strategies to reduce casualties during emergency evacuation. The dynamically configurable scenario and effective evacuation algorithm are studied in this thesis. In addition, crowd evacuation in emergency is simulated using OGRE. This thesis is focusing on the following aspects,Establish configurable scenario dynamically. On one hand, the establishment of scenario elements library allows users to interactively build the simulation scenarios. On the other hand, the crowd evacuation is simulated in user-defined scenario to evacuate the efficiency of algorithm in different scenarios. By this means, the scene layout is optimized.Analyze retrospectively of the accident scenario. In order to assist emergency command, the retrospective of dynamically configurable scenario is studied. Through recording the main information of emergency,3D accident scenario can be playback using OGRE. Therefore, the retrospective analysis is completed.Multi-objective decision algorithm is proposed. First, by pre-detecting collision during crowd evacuation, the redirecting strategy is proposed. Second, by introducing the evacuation decision factor and the nearest exit selection model, the crowd evacuation is optimized, and multi-objective decision function is established. Finally, the target decision is simulated using OGRE engine in emergency evacuation, and then the crowd evacuation strategies are made.Therefore, with dynamically configurable scenario, retrospective analysis and multi-objective decision making, the foundation commands for scientific and efficient emergency, the auxiliary emergency evacuation and venue construction are provided.更多还原