Vision field-based crowd grouping and crowd evacuation simulation system and method

A simulation system and crowd technology, applied in the field of view-based crowd grouping and crowd evacuation simulation system, can solve the problem of not considering the influence of crowd relationship and group movement, achieve the effect of optimizing the actual evacuation process and improving evacuation efficiency

Pending Publication Date: 2020-07-10
SHANDONG NORMAL UNIV
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  • Claims
  • Application Information

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Problems solved by technology

But it oversimplifies the behavior of pedestrians and does not consider the re

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  • Vision field-based crowd grouping and crowd evacuation simulation system and method
  • Vision field-based crowd grouping and crowd evacuation simulation system and method
  • Vision field-based crowd grouping and crowd evacuation simulation system and method

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Embodiment 1

[0039] The invention provides a crowd grouping method and a crowd evacuation simulation system based on the visual field. The present invention aims at the small group phenomenon in crowd evacuation, classifies the evacuated crowd, and uses different social force models to describe it. The evacuated crowd can be divided into three categories: one is the leader, the other is the follower, and the other is the scattered personnel. During the emergency evacuation process, due to the lack of information about the path and exit of the dispersed personnel, if there is a leader who can provide effective evacuation information within the field of vision, they usually choose to evacuate with the leader, and their dynamic behavior is often affected by the leader and the surrounding environment. environmental impact. Therefore, according to the crowd grouping method of the visual field, the scattered people can be classified as followers, and the leader to follow can be determined, so a...

Embodiment 2

[0052] A simulation method for crowd grouping and crowd evacuation simulation system based on viewshed, the steps comprising:

[0053] According to the structural information of the evacuation scene, the features of the evacuation scene are extracted, and the three-dimensional model of the evacuation scene is obtained;

[0054] According to the 3D model of the evacuation scene, the global path planning of the evacuation scene is carried out, and the global path of all entrances and exits in the evacuation scene is calculated;

[0055] Group the crowd according to the number of all entrances and exits in the evacuation scene, the sight range of the individual in the crowd, and the location information of the individual;

[0056] Calculate the real-time speed of the individual in the simulation process according to the social force model with added visual factors. During the simulation process, the movement speed of each individual in the same group is corrected in real time to ...

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Abstract

The invention provides a vision field-based crowd grouping and crowd evacuation simulation system, and the system comprises an evacuation scene model establishing unit used for extracting features ofan evacuation scene to obtain a three-dimensional model of the evacuation scene; an evacuation scene global path planning unit which is used for carrying out global path planning on the evacuation scene according to the three-dimensional model of the evacuation scene and calculating global paths of all entrances and exits in the evacuation scene; a crowd activity generation unit which is used forgrouping the crowds according to the number of all entrances, the global paths of all entrances, the vision fields of individuals in the crowds and the individual position information to obtain grouping information; a crowd simulation unit which is used for processing the grouping information by adopting a social force model added with a visual factor and dividing pedestrians into a leader type and a follower type to realize behavior simulation of evacuated crowds. According to the invention, the evacuated crowds are divided into groups to move, the evacuation efficiency is improved, the building evacuation performance can be detected, the actual evacuation process is optimized, and the evacuation efficiency is improved.

Description

technical field [0001] The present disclosure relates to a crowd grouping and crowd evacuation simulation system, in particular to a visual domain-based crowd grouping and crowd evacuation simulation system and method. Background technique [0002] Large-scale gathering of people is an important feature of modern cities and even modern society. There are great potential safety hazards hidden in densely populated places, and emergencies are prone to occur. Once the panic of the crowd is caused, crowding and trampling accidents occur, and the casualties are often very heavy. Especially with the accelerated development of my country's urbanization process, large-scale activities with high gatherings of people have increased, and crowding and trampling accidents are more likely to occur. [0003] Crowd evacuation under emergencies is a complex system engineering. In practical applications, evacuation experiments are usually used to obtain suitable evacuation plans. This method...

Claims

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Application Information

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IPC IPC(8): G06F30/20G06T17/00
CPCG06T17/00
Inventor 刘弘李梁韩延彬
Owner SHANDONG NORMAL UNIV
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