Video-driven crowd evacuation behavior simulation method and system

A simulation method and crowd technology, applied in the field of computer simulation, can solve problems affecting the authenticity of the model

Active Publication Date: 2018-02-09
SHANDONG ZHENGZHONG COMP NETWORK TECH CONSULTING
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, most crowd evacuation simulation models often ignore this individual difference and the negative correlation between crowd density and evacuation speed, which affects the authenticity of the model

Method used

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  • Video-driven crowd evacuation behavior simulation method and system
  • Video-driven crowd evacuation behavior simulation method and system
  • Video-driven crowd evacuation behavior simulation method and system

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Embodiment Construction

[0071] It should be pointed out that the following detailed description is exemplary and intended to provide further explanation to the present application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

[0072] It should be noted that the terminology used here is only for describing specific implementations, and is not intended to limit the exemplary implementations according to the present application. As used herein, unless the context clearly dictates otherwise, the singular is intended to include the plural, and it should also be understood that when the terms "comprising" and / or "comprising" are used in this specification, they mean There are features, steps, operations, means, components and / or combinations thereof.

[0073] Such as figure 1 As shown, the video-driven crowd evacuation behavior simulation method includes the fol...

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Abstract

The invention discloses a video-driven crowd evacuation behavior simulation method and system. The method comprises the following steps: performing abstract modeling on an actual building as needed toobtain a two-dimensional space model; initializing barrier information, the number of rooms, the exit location of each room and the position of a final safe exit; generating signpost points by a probabilistic roadmap method (PRM), and setting fixed signpost points at the exit position of each room; finding shortest paths between adjacent signpost points according to an AStar algorithm to obtain an optimal evacuation path of the signpost points at different locations; initializing the number of individuals and the positions of the individuals; initializing the initial speed of each individualby a gauss normal distribution method; initializing the speed of each individual according to a negative correlation relationship between an individual movement speed and a surrounding crowd movementdensity; and evacuating a simulation crowd by an RVO (Reciprocal Velocity Obstacle) strategy. Through adoption of the method and the system, a high-density crowd evacuation behavior under a sudden situation can be simulated truly and effectively.

Description

technical field [0001] The invention relates to the technical field of computer simulation, in particular to a video-driven crowd evacuation behavior simulation method and system. Background technique [0002] In recent years, a series of mass stampedes have occurred in some large public places at home and abroad. A large reason for these incidents is that there is no emergency plan for crowd evacuation in advance. When the density of the gathered crowd is high, individuals will squeeze and push each other, and the crowd is in a highly unstable state, which is a potential safety hazard for large-scale group stampede accidents. Due to the large number of people in public places, once an emergency occurs, how to ensure the rapid and safe evacuation of the crowd is an important part of emergency response. Due to the large number of people, it is unrealistic to use real people for evacuation simulation training. Therefore, the current common method is to use computer simulation...

Claims

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Application Information

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IPC IPC(8): G06F17/50G06T7/246G06Q10/04
CPCG06F30/20G06Q10/047G06T7/246G06T2207/30196
Inventor 吕蕾赵修凯马乃琦张桂娟刘弘
Owner SHANDONG ZHENGZHONG COMP NETWORK TECH CONSULTING
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