Research On Crowd Aggregation Behavior Modeling And Simulation Technology

With the improvement of computing power,computer simulation technology has been applied in more and more fields.As long as the crowd simulation involves the two fields of research: the crowd simulation technology and simulation environment,population and in the past the crowd simulation technology study,there is little research on the study of crowd gathered behavior modeling,common is the crowd behavior modeling,path planning,collision detection and some specific scenarios simulation research.Crowds gathered behavior in real life,the students gathered,to work or after work to the canteen after class people gathered to subway station,etc.,for different scenarios different aggregation effect,such as dining room to the students gathered outside characteristic is scattered,rapid movement,etc.,and dining room,you will be queued,uniform outlook and other characteristics,this subject will focus on the crowd gathered behavior modeling,analysis process and gathering,and gathered the relationship between the scene.In addition to the crowd simulation technology itself,the requirements of simulation environment are higher and higher.Researchers in the past research on the simulation environment demand is low,generally by adopting the technology of opengl to simple rendering is going to the simulation environment,especially in large-scale scene modeling of related research is less.This topic will be on campus environment modeling,and is based on a real 3 d scene reconstruction,this paper will introduce the basic algorithm of 3 d reconstruction: SFM algorithm,introduced by the method of image or video graphics for 3 d reconstruction process.Crowd simulation and simulation environment's a lot of computation and rendering,and the game engine contains a good rendering method,the crowd of this topic last the realization of the simulation will be done in unity3 D.Aiming at the problem that it is difficult to read large-scale data in advance,this paper proposes a multiple buffermultiple thread scheme which is based on multiple thread mechanism to realize the synchronization of data read,data analysis and virtual simulation,and cooperates with multiple buffer mechanism and event mechanism to achieve the orderly acquisition of data.Finally,the virtual 3D printer driven by G-code is implemented as the concrete simulation to verify the theory of simulation scheme,and experimental results show that the data-driven scheme is effective for large-scale data.In the area of crowd simulation technology at home and abroad have developed a lot of crowd behavior model,is used in the study of this topic of menge crowd simulation framework is open source a colleges and universities in the United States a crowd simulation framework,the framework is controlled by the XML files for basic crowd simulation,based on the framework can each of the main technical points in the crowd simulation are studied,such as path planning,collision detection,the crowd behavior modeling,and so on.The modeling of crowd aggregation behavior is done in the menge framework and finally integrated into unity.This topic in the campus modeling work early use of xinjiang unmanned aerial vehicle(uav)to five different perspectives of polytechnic campus photos,in the process of unmanned aerial vehicle(uav)flight path planning,photo time control to guarantee the quality of the photo,taken by unmanned aerial vehicle(uav)photos in 3 d scene reconstruction.For the optimization of the model after the fusion of photos,a more detailed 3d model is obtained.Game engine plays an important role in this topic,the integration of good menge in the form of DLL in unity through scripting language called c #,combine to rebuild a good model in unity unity community or store existing resources on the campus environment simulation.In unity,the simulation of crowd gathering behavior in the campus is realized through the script control of crowd behavior simulation.