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Indoor multi-export pedestrian flow simulation method giving consideration to evacuation guidance

A simulation method and pedestrian flow technology, applied in design optimization/simulation, special data processing applications, instruments, etc., can solve the problem of not paying attention to the influence of the guiding role on the pedestrian evacuation process, and achieve the effect of fast calculation speed and simple rules

Active Publication Date: 2017-01-25
XIAMEN UNIV TAN KAH KEE COLLEGE
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Problems solved by technology

[0006] However, in the above pedestrian simulation research based on cellular automata, no attention has been paid to the influence of guidance on the pedestrian evacuation process.

Method used

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  • Indoor multi-export pedestrian flow simulation method giving consideration to evacuation guidance
  • Indoor multi-export pedestrian flow simulation method giving consideration to evacuation guidance
  • Indoor multi-export pedestrian flow simulation method giving consideration to evacuation guidance

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Embodiment Construction

[0042] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0043] Such as figure 1 As shown, this embodiment provides an indoor multi-exit pedestrian flow simulation method considering evacuation guidance, which specifically includes the following steps:

[0044]Step S1: Grid the indoor space to form a (W+2)·(W+2) two-dimensional discrete cellular grid system; set the scene of the gridded indoor space according to the indoor evacuation strategy, Use different colored squares or dots to represent walls, exits, obstacles, and guides respectively;

[0045] Step S2: Initialize the evacuated personnel, arrange the evacuated pedestrians in random blank cells with a uniform random distribution, and represent them with dots of different colors from those of the guiding personnel;

[0046] Step S3: Search for pedestrians in each cell, analyze the guiding force received by each pedestrian, the force between pedestrians...

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Abstract

The invention relates to an indoor multi-export pedestrian flow simulation method giving consideration to evacuation guidance. Firstly, gridding processing is conducted on an indoor space, then pedestrian evacuation is initialized, and evacuated pedestrians are arranged in random empty cells in a uniform random distribution mode and are represented by dots different from guiders in color; then, the pedestrians in cells are searched, and the guiding action force exerted to the pedestrians, the acting forces among the pedestrians, visible export attractions and obstacle repulsion forces are parsed, and the four directions towards which the pedestrians go possibly so as to obtain a direction matrix A; finally, the direction matrix is parsed, the pedestrians participate in competition to obtain actual moving directions; the positions of the pedestrians are updated till all the pedestrians reach exports. By the adoption of the method, a pedestrian flow evacuation model based on a cellular automaton can be perfected, the inherent law between the pedestrian flow evacuation effect in a multi-export evacuation guidance scene and a guidance effect is disclosed, and a theoretical support is provided for assessment and optimization of a pedestrian flow evacuation guidance strategy.

Description

technical field [0001] The invention relates to the research field of pedestrian flow characteristics, in particular to an indoor multi-exit pedestrian flow simulation method considering evacuation guidance. Background technique [0002] Emergencies of large gatherings under complicated circumstances may cause crowding and stampede accidents, and individual pedestrians in evacuation places often cannot find the best escape direction due to unfamiliarity with the environment. It is the focus of research in the field of pedestrian flow to evaluate the evacuation ability of the assembly and provide an effective evacuation strategy through the pedestrian flow evacuation model. [0003] The research on the characteristics of pedestrian flow mainly consists of two aspects: the microcosmic behavior characteristics of pedestrians and the macrocosmic group characteristics. The research on pedestrian micro-behavior characteristics is mainly to analyze and study the individual behavio...

Claims

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Application Information

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IPC IPC(8): G06F17/50
CPCG06F30/20
Inventor 高凤强颜逾越任欢许策林丽霞裴俊智毛云海陈志芬
Owner XIAMEN UNIV TAN KAH KEE COLLEGE
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