Research And Verification Of Crowd Behavior And Evacuation Simulation Platform In Smart Town

In recent years,the construction of smart towns has developed rapidly,which apply information technology to town governance,and use the Internet of Things,cloud computing,big data analysis,Internet,artificial intelligence and so on to intelligently collect and analyze the problems which encounter in the life and work of the aborigines in the town,the travel and play of foreign tourists,and the operation and development of local enterprises,and generate solutions for these problems.Through intelligent governance,town operators can obtain information through Internet of Things technology such as traffic and people flow on roads,streets,and buildings.When the flow of people in the town surges and lead to large-scale congestion,if an emergency occurs,it is necessary to carry out emergency evacuation of the town crowd.Using computer simulation technology to simulate the crowd evacuation in advance and formulating the corresponding evacuation strategy algorithm provides theoretical guidance for the safe evacuation in emergency,which is of great significance to the safety management of smart towns.This paper designs and develops a simulation platform for crowd behavior in a smart town.Taking a cultural and sports town(hereinafter referred to as "town")as an example,this paper studies and establishes a crowd behavior model and a crowd evacuation model,which can be used on the simulation platform to simulate the small town crowd behaviors and crowd evacuation.Then,this paper conducts deduction experiments on the emergency safe evacuation of the town on the simulation platform,and uses the evacuation strategy proposed in this paper to complete the verification in each situation,providing a reliable theoretical basis for the small town manager to formulate a safe emergency evacuation plan.Specifically,the innovative research work of this paper can be divided into the following parts:1.Based on Menge and Unity 3D,this paper designs and develops a simulation platform for crowd behavior in smart towns.The platform is mainly divided into two parts:the underlying simulation engine and the top display window.The underlying simulation engine is based on the Menge platform,and is equipped with the crowd behavior model,town map physical model,crowd path planning,collision avoidance model,safe evacuation model and so on proposed in this paper for the town.The top display window includes Unity and the browser,in which Unity completes the 3D visualization of the simulation results of the underlying engine,and the browser side completes the 3D animation display and data visualization of the simulation results of the underlying engine.2.This paper establishes a large-scale crowd safe evacuation model for the small town scene,and completes the deduction simulation on the crowd simulation platform proposed in this paper.Specifically,the crowd safe evacuation model proposed in this paper includes evacuation crowd classification,evacuation crowd movement model,safe evacuation strategy design and dynamic evacuation process design.This paper conducts simulation deduction using the evacuation strategy designed in the model,and can study and formulate the optimal safety evacuation plan in various emergency evacuation scenarios of the smart town without real people flow data.3.Based on the above-mentioned crowd simulation platform and safe evacuation model,this paper formulates three special analysis experiments to study how to formulate the optimal safe evacuation strategy in various emergency evacuation scenarios of the town.This paper provides a scientific and reliable basis for the formulation of emergency evacuation plans for small towns in different evacuation scenarios through the analysis and verification of the experimental results.