Human Crowd Behavior Analysis And Simulation For Fire Escape

Whether academic or social application, crowd simulation technology has important research value. At the same time, it is also a difficulty in many fields. Large demonstrations of crowd flow control, crowded places safety channel design, emergency evacuation and military training projects are specific application of crowd simulation. However, the group is a combination of many individuals, but a combination of group behavior together is not only a simple mathematical, but also affected by the public and individual physical and mental health. It is an extremely huge research topic affected by many uncertain factors and research of simulation. It needs not only work in with many fields, but also needs huge human and material resources investment.Today, the most popular and most advantageous method is Agent-based modeling methods, which is based on the combination of multi-discipline and multi-model and fully consider the crowd behavior and psychological factors of the system modeling method. According to the fire escape herd behavior problem, this paper use the idea of the computer simulation,presents the behavior decision model of a comprehensive mood and environment factors, the modeling method of the model belongs to the agent-based modeling methods. This modeling method using each agent’s mood and risk assessment of the initial value, in the herd consciousness and independent consciousness under the influence of the psychology, through each Agent`s behavior interaction, calculate the value of a comprehensive analysis of each agent, and use this value compare to the trigger threshold, at last show a behavior decision. Based on the modeling of emotion and environmental factors, we focused on the path planning, this paper proposes A Star Path Finding of vector and centre of gravity based on A* pathfinding. Just like on the grid simulation path, many agents completed pathfinding and escape the fire simulation process.In this thesis, a decision model based on emotion and environment factors is constructed. The premise of the design is that the crowd behavior of the real fire scene is affected by the surrounding environment and the population. About the verify of the simulation model, this paper use the most popular Unity3 D virtual reality engine which has simulate many fields,such as the evaluation of the danger of fire、the groups` behavior interaction and escape path planning and the changes of fire environment and the fire Fig.hters Fig.hting in the fire environment. Compared with fire-Fig.hting exercises in real life, this simulation system has the advantages on high security, low cost and unlimited space-time conditions.