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Crowd Evacuation Visualization Method Based on Emotional Cognition

An emotion and crowd technology, applied in the field of computer simulation, can solve problems such as the increase of Herd's behavior and the increase of evacuation time, and achieve the effect of improving authenticity, ensuring efficiency, and visualizing the results of reality.

Active Publication Date: 2022-05-10
SOUTHWEST JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Excessive panic can make it difficult for individuals to think carefully and judge the current situation, leading to increased herd behavior and increased evacuation time

Method used

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  • Crowd Evacuation Visualization Method Based on Emotional Cognition
  • Crowd Evacuation Visualization Method Based on Emotional Cognition
  • Crowd Evacuation Visualization Method Based on Emotional Cognition

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0060] The specific implementation steps are as follows:

[0061] Step 1: Input and configure the corresponding three-dimensional environment information Environment, obstacle information Obstacles and exit information Exits, and construct the crowd evacuation navigation grid Navmesh, such as image 3 shown. Initialize the emotional value of individual i with speed emotional value It refers to setting the individual's emotional value to 0 at the initial moment, that is, no emotional state; the individual's emotional value is between 0 and 1 during the evacuation process, and the emotional value is greater than 0 to indicate the emotional activation state; It means that the individual is randomly assigned a walking speed of 1.3-1.5m / s at the initial moment; Figure 4 shown.

[0062] Step 2: Initialize the personality trait Ψ of individual i based on the OCEAN model i , OCEAN model describes individual personality traits as variables of five dimensions, including Openn...

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Abstract

The invention discloses a crowd evacuation visualization method based on emotional cognition, which includes the steps of: constructing a crowd evacuation navigation grid, initializing the crowd, calculating the emotion and movement speed of each individual after an emergency occurs, and calculating the walkable area according to the crowd movement information Crowd density and update the navigation network, plan the shortest or fastest path for each individual according to the navigation map search algorithm based on density information, and realize the visualization of crowd evacuation in a graphical way. The beneficial effects of the present invention are: different from the traditional crowd evacuation visualization method, the present invention effectively improves the authenticity of the crowd evacuation visualization; different from the traditional navigation map algorithm, the present invention ensures the diversity of individual behaviors in the crowd evacuation visualization; Different from the traditional individual geometric representation method, the present invention ensures the high efficiency of crowd evacuation.

Description

technical field [0001] The invention relates to the technical field of computer simulation, in particular to a visualization method for crowd evacuation based on emotional cognition. Background technique [0002] The study of crowd movement in emergencies involves complex fields such as psychology, sociology and group dynamics, and is a multidisciplinary and complex systemic subject. In recent years, with the continuous development of urban computing and crowd simulation technology, crowd emergency evacuation has become one of the research hotspots in the field of computer simulation at this stage. Combining group animation and visual analysis technology, the movement patterns of the crowd can be further explored, which helps to quickly evacuate the crowd to the refuge, reduce stampede accidents caused by overcrowded crowds during evacuation, and provide effective reference for architectural planners. It has very important research significance in various fields such as urb...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20G06Q50/26
CPCG06Q50/26
Inventor 李天瑞杨善雯彭博龚勋胡节
Owner SOUTHWEST JIAOTONG UNIV
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