Crowd Evacuation Method And Simulation Research Based On Longhorn Beetle Search Algorithm

With the rapid development of the global economy and technology,people's life is getting faster and faster,more and more high-rise buildings,and population density are increasing.Urbanization has changed people's lifestyles and improved people's quality of life,but it has also brought new hidden dangers to people's safety.In an environment with a relatively large population density,complex threats are hidden in the process of evacuation.In the event of a security incident or emergency,people will behave in a panic,which can easily lead to collective stampede.In this case,no matter what kind of disaster,it will cause huge losses to people's lives and wealth.Therefore,the problem of effective evacuation of people in emergencies has been the focus of many experts and scholars.In addition to improving the safety awareness of the population and the ability to respond to emergencies,the crowd evacuation simulation study also uses computer modeling through science and Effective evacuation strategy makes reasonable planning and design of the building's infrastructure,simulates the possible situation of crowd evacuation,and avoids risks.Therefore,with the growth and development of artificial intelligence technology and computer virtual simulation technology,the research on crowd evacuation simulation has great research value and practical significance.In addition to understanding human behavior,population simulations deal with group diversity,faster evacuation from public buildings,and path planning for individuals to target,avoid collisions and demonstrate other human behavior.Many crowd steering algorithms have been developed to realistically simulate crowd movement to a defined target.The crowd involves two or more objects with different characteristics.They communicate and interact with each other for the same purpose at the same location and during the same time period.However,the modeling of the environment and the modeling of the individual are quite complicated,and the workload is very large.It has certain limitations for a large number of crowd evacuation simulations.The rapid development of science and technology should respond to new demands and require more realistic and efficient methods to achieve large-scale crowd evacuation simulation.In order to break through the limitations of traditional crowd evacuation simulation,based on the theoretical system of Beetle Antennae search algorithm model and group effect model,this paper uses Unity3 D development engine as technical support to study the crowd evacuation method and simulation in emergency conditions.The evacuation process of buildings and people breaks through the constraints of traditional drills,and finally realizes a computer model that meets the research needs and improves the evacuation efficiency of the crowd.The main work and innovations of this paper are as follows:1.Analyze the public area of a city,use Maya to build the basic model of the public place,then import the built model into Unity3 D,and use Unity3D's powerful editor to design a reasonable simulation model to do the basic work for the following research.2.A crowd path planning method based on the Beetle Antennae search algorithm is proposed.In the process of escaping,the crowd often chooses the route they are familiar with,ignoring the recent security exits,which may lead to overcrowding of these preferred export routes,which may lead to casualties.Therefore,we will use this algorithm to plan the shortest path to the safe exit,and simulate the crowd evacuation process through the constructed model.3.A collision avoidance model based on group effect is proposed.Collision,crowding,and even blockage during the emergency evacuation process are common,ensuring that the group reaches the safe area quickly and orderly,using multiple position-based dynamics frameworks,cohesion models and avoidance models to prevent crowds.During the evacuation process,crowding and stamping accidents occurred,and an experimental model was established for simulation.Finally,the above schemes are combined,and the environment model and character model are built in the Unity3 D environment for simulation experiments,and the simulation effects are analyzed and studied.Summarizing the influence of factors such as the density of the crowd,the number of safe exits and the distance of evacuation during the evacuation process,the architectural design defects can be found through simulation studies and corrected.The crowd evacuation method proposed in this paper can simulate the real situation of evacuation of the crowd more realistically,and has a strong reference value and application value for the study of crowd evacuation scheme.