A Simulation Method of Personnel Evacuation Based on Cellular Automata

Abstract

The present invention discloses a method for evacuating personnel based on cellular automata, which discretizes the entire room into a finite number of cells of equal size, and establishes a two-dimensional cellular automata mathematical model similar to the actual scene; a time step is started After the movement; multiple traversals with different starting points and different orders in the same time step; each person needs to make two judgments before moving: first, each person moves at most once in a time step, and in the previous traversal The people who have moved in this time step will not move at this time step, and then the random stop mechanism is judged before moving, which is used to simulate the occurrence of unexpected situations in the evacuation process; for the people with vacant cells in the four neighborhoods that can move, according The distance field value and the degree of congestion ahead determine the movement direction of people; when all people have evacuated, the evacuation time is output. The invention can more realistically simulate the evacuation process of people in this type of specific scene.

Description

technical field [0001] The invention relates to the field of personnel evacuation simulation methods, in particular to a personnel evacuation simulation method based on cellular automata for narrow and complex scenes. Background technique [0002] In recent years, with the rapid development of the economy, urban construction has shown a trend of complex and three-dimensional development, and people's life and entertainment methods have become more and more diverse, which has also led to more and more situations where a large number of people gather in one place . These places, such as concerts, movie theaters, and large conference rooms, etc., in the event of a dangerous situation, the safe evacuation of personnel is very important. Such places generally have dense seats, narrow passages, and high population density. When emergencies (fires, earthquakes, or terrorist attacks, etc.) Serious stampede accidents occurred, aggravating casualties. [0003] The personnel evacuat...

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Problems solved by technology

[0005] The purpose of the present invention is to overcome that the simulation results of commercial personnel evacuation simulation software currently used on the market are not realistic enough for scenes with narrow channels and many obstacles such as movie theaters or large conference rooms, and the selection of personnel evacuation routes is not intelligent enough. , unreasonable queuing jams are prone to occur when crowds move, and a simulation method for evacuation of people in narrow and complex rooms based on cellular automata is provided

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