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With the rapid development of society, the large increasing number of social activities, security issues become the focus of attention. These personnel-intensive activities, if there is a sudden event, easily lead the crowd and panic, there will be a great security risk, and even casualties. The relevant departments have also developed a lot of the evacuation plan, but most of the plans described in the form of text and graphic paper maps, field-tested. Formulation in terms of the security plan, every development needs of many departments collaborate with research and discussion, the use of text and paper maps to deduce plan deficiencies in various aspects of the intuitive, convenient to managers many additional workload. Inspection in terms of the security plan, the field-testing will cost the enormous human and material resources, through computer simulation analysis plan, simple and intuitive, greatly reduce the cost, the results can provide a reference for plan-makers, managers. Therefore, of evacuation simulation studies, and to provide a good show environment, and has great practical significance and practical value. This article describes a three-dimensional scene simulation system modeling method, summarizes the characteristics of the existing pedestrian evacuation model, combined with the characteristics of pedestrian behavior, plan presentation and meet regulatory requirements deduction evacuation simulation system, and finally through simulation, validation reasonable. Way through the three-dimensional modeling, according to the true proportion, restore the scene of the mass events, to solve the previous plans demonstrate intuitive problem. Using the the microstructure modeling method based on Agent technology as a means of evacuation simulation study, through to constantly generate pedestrian intelligent body, placed in a particular scene simulation study personal evacuation behavior, thus simulating the behavior of the crowd in the real situation. 3D Virtual multi-agent computing, there are many bottlenecks, such as performance, can not be real-time dynamic adjustment parameters. The computational performance of a single ordinary computer is insufficient to support a three-dimensional real multi-agent parallel computing, large-scale mass activities, workplace safety management institutional sectors, such as public security, fire protection, civil defense, subway management departments hope in ordinary good simulation and display of results, and must meet the real-time control of crowd evacuation instructions to operate stand-alone plan deduction purposes. Therefore, this paper established simulation system is divided into the real three-dimensional display and two-dimensional simulation of two parts. Real three-dimensional display, according to the true proportion, to create a three-dimensional scene model and roam in a three-dimensional scene, query, positioning 3D function operation. Two-dimensional simulation, computer simulation of emergency evacuation activities of normal operations and emergency events. The evacuation of environmental analysis, the use of program more reasonable auxiliary polylines, and the combination of the shortest path, optimizing agent pathfinding algorithm to improve the computing performance to meet the actual demand. Finally, the real three-dimensional part of the display and analog simulation using LAN connected SOCKET, custom encryption protocol to control the simulation of real-time command. By actual test, the program to meet the needs of the management departments of the three-dimensional simulation, showing the relevant departments of the evacuation plan, analyze and provide good technical support.
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