The Research Of Evacuation Simulation In Buildings Based On Multi-Agent

As the development of our society, the sacle of city is increasing and the buildings in city is becoming more and more. In order to satisfy the need of population explosion, the average of buiding area owned by one person is decreasing, so the desity of population in buildings is increasing. Besides, due to the design of some building is unrational, all the factors bring some diffculities under the situation of a great deal of people evacuation from buildings. Therefore, not only the security management of buildings ,but also the security design of buildings, the reaserch of building security evacuation is very needed. Meawhile the reaserch of reseaonable and effective eavaction simulating in building is now the mainly means and method of reaserching evacuation in buildings.This thesis aiming at the spcailty of the building, induce a evacuation simulating reaserch method based on Multi-Agent caculate platform. On the basis above,this thesis narate the two mainly key facets of evacuation simulation in building,the moduling of building and the simulation method of people evacuation in buildings.At last, this thesis design the softwre platform according to the flow of evacuation simulation in building,and on this paltform we test and analyse the different situation that effects the evacuation time.In order to simulation the evacuation in buildings effectively, and reflecting the real situation in buildings, this thesis use the model of fine grid to devide the eacation space. Maentime, in order to reflecting the obactacle in building, this thesis induce the method of mannual potential. Through the fine grid deviding in building and the mannual potential method, we can easily reflect the complex space inbuilding and the real situation in buildings.In the facet of evacuation simulation caculation, this thesis use the Multi-Agent technique to caculate the whole evacuation.Under the Multi-Agent framework,each evacuation unit is treate as an Agent,we use attribute to describe each agent, and we use Multi-Agent to caculate each agent parallelly. When we caculate the movment of each agent, we use the PSO algorithm to caculate the position of each Agent. We use PSO to caculate the dirction of agent, then combining the potential of agnet we can decide the next position of agent,so thougth those the agents can moving among the cells in the evacuation space.