A balanced crowd evacuation method for non-symmetric safe passages in public buildings

Abstract

The invention discloses a method for balanced evacuation of crowds in non-symmetrical safe passages of public buildings. According to the distribution of crowds and obstacles in the building, the method of the present invention divides them into grids, and constructs a balanced evacuation adjustment model for safe passages by introducing a crowd evacuation simulation model expanded by congestion factors, and simulates a certain number of congestion factors based on the model Established evacuation plan, obtain BP neural network model training samples and test samples, build an evacuation plan optimization model based on the artificial neural network model and crowd evacuation simulation model, screen out a group of evacuation plans with better simulation effects and establish congestion factors, and divide personnel In the evacuation selection area, people in the same evacuation selection area choose the same safe channel to evacuate, and finally formulate a specific crowd evacuation plan for the building to ensure that buildings with uneven safe channels can complete the evacuation quickly and safely.

Description

technical field [0001] The invention relates to a method for balanced evacuation of crowds in non-symmetrical safe passages of public buildings. Background technique [0002] With the increasing number of cultural and sports activities in today's society, the gathering activities of a large number of people have also increased, and the occurrence of serious stampede accidents has become more frequent. Regions are a priority. The first step in crowd evacuation is to choose a safe exit. The crowd generally chooses a safe exit based on the principle of "shortest distance". Because in many buildings, safe exits may not be arranged according to the distribution of the crowd, such as gymnasiums, concert halls, etc. Meetings, movie theaters, schools, large lecture halls, libraries, etc., there are many evacuated people around some exits, and very few people need to be evacuated around some exits. Once an emergency occurs and it is urgent to choose a safe channel to evacuate, it is...

AI Technical Summary

Problems solved by technology

However, at present, many emergency evacuation plans at home and abroad are to guide personnel to evacuate according to the shortest path, help personnel find the exit location in time, and ensure safe evacuation through emergency facilities. A method to balance the evacuation tasks of each channel and make the evacuated crowd evacuate in a targeted manner

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