The Research And Simulation Of Evacuation Based On Sliding Mode Control Method

Global economy and culture develop rapidly in the21st century. More and more people go intolarge and medium-sized cities. Population density is increasing day by day, it also brought a lot ofpotential safety problems. Such as the opening promotion of large shopping malls, the LanternFestival parade, large sports games and concerts, which will attract high density of population, ifevacuation is not timely, it could cause a stampede and casualties. So how to evacuate high densityof population efficiently and fast has become a problem worthy of further study.Uncertain factors exist more or less in the actual population dynamics system. So uncertaintyof mathematical model is introduced into the control system, who can truly describe the process andreflect parameter variations and external disturbance of system.Therefore, no matter in theory orpractice, crowd evacuation control study including uncertainty has very important significance.Sliding mode control method can overcome system uncertainties, it also has very strong robustnesson external disturbances and parameter changes, especially has nice control effect on nonlinearsystem control. So in view of the population dynamics system including uncertainty based on nouncertainty crowd dynamic system of feedback controller, this paper design crowd dynamics systemof robust controller existing uncertainty by sliding mode control method, and finally realizes systemstable asymptotically. At the end of paper, it simulates single export corridor density by Matlab withGaussian distribution of crowd dynamics system evacuation control when the length ofsingle exportcorridor is equal to L, satisfactory results have been achieved.