A crowd evacuation simulation method and system based on topological map and visual influence

Abstract

The invention discloses a crowd evacuation simulation method and system based on a topology map and visual influence. The method is completed in a simulation server, and includes the steps of receiving a crowd model and a scene model and initializing, obtaining the topology structure map of a scene, grouping according to the relation between an individual and the position of each exit, selecting the least exit relation as a guide in the group, recording the information of the guide, information communication is conducted on the individual in the group, selecting a next moving target through the guide using a cost selection strategy based on the minimum path of the topology map, according to the distance between the current position and the available candidate target, and storing the information selected by the target; guiding the individual movement in the group by introducing a dynamic obstacle avoidance social force model with visual influence, reading the target selection information of the guide, and completing the collision avoidance behavior of local path; evacuating the crowd to reach a safe area and ending the evacuation simulation.

Description

technical field [0001] The invention belongs to the field of computer simulation of crowd evacuation, in particular to a crowd evacuation simulation method and system based on topological maps and visual effects. Background technique [0002] With the rapid economic development, the sharp increase in population and the steady acceleration of urbanization, large public places are constantly emerging, and art and sports activities are increasing day by day. The high density of crowds in places poses a huge safety hazard. Once an emergency occurs, serious safety accidents will result if effective evacuation cannot be carried out. Studying the evacuation behavior of crowds and summarizing the laws of pedestrian movement, so as to provide intuitive evacuation routes and formulate reasonable emergency plans in emergency situations, has become an important problem to be solved urgently. Traditional rehearsal methods have many limitations, such as high manpower and material consump...

AI Technical Summary

Problems solved by technology

The model can realize natural and smooth collision avoidance between individuals, and reproduce the "exit arch", "fast is slow" and other phenomena that appear in real evacuation, but it ignores the influence of visual factors on individual movement, and it cannot Defects in avoiding obstacles in the field of vision in advance

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