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A large-scale crowd evacuation computer simulation system and method thereof

A technology of computer simulation and simulation method, which is applied in computing, special data processing applications, instruments, etc., can solve problems such as the influence of group movement without considering the relationship between crowds, so as to optimize the actual evacuation process, improve evacuation efficiency, and improve authenticity and the effect of efficiency

Inactive Publication Date: 2018-08-31
SHANDONG NORMAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

But it oversimplifies the behavior of pedestrians and does not consider the relationship between the crowd and the impact of the formed group on the movement

Method used

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  • A large-scale crowd evacuation computer simulation system and method thereof
  • A large-scale crowd evacuation computer simulation system and method thereof
  • A large-scale crowd evacuation computer simulation system and method thereof

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Embodiment Construction

[0047] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0048] In the large-scale crowd evacuation computer simulation system of the present invention:

[0049] (1) crowd data set P={p i ,i=1,2,…,N}, p i =(p i1 ,p i2 ,...,p im ) represents the i-th individual in the data set, p im Indicates the m-th attribute of the i-th individual.

[0050] (2) The relationship between individuals in the crowd:

[0051] For two individuals p l and p m , the relationship value indicates the degree of closeness between two individuals, and the value ranges from 0 to 1. Use rel(p l ,p m )express.

[0052] If the two individuals have no relationship, the relationship value is 0, and if it is a mother-child or lover relationship, the relationship value tends to 1. In order to reflect the emergency evacuation, find a tour guide or the leader of a group, and establish a relationship between everyone in the tour team and the ...

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Abstract

The present invention discloses a computer simulation system for large-size crowd evacuation and a method therefor. The system comprises: an evacuation scene model establishing unit, used for extracting a feature of an evacuation scene, so as to obtain a three-dimensional model of the evacuation scene; an evacuation scene global path planning unit, used for performing a global path plan 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, used for performing crowd grouping according to the feature of the evacuation scene, a relationship among individuals and individual position information, so as to obtain a plurality of groups; and a crowd simulation unit, used for screening a leader of each group and calculating a real-time speed of an individual according to a modified social force model. In a simulation process, a moving direction of each group is decided by the leader, and the motion speed of the individual is adjusted in real time, so as to maintain travel consistency of each group and achieve behavior simulation of evacuated crowd.

Description

technical field [0001] The invention relates to the field of crowd evacuation computer simulation, in particular to a large-scale crowd evacuation computer simulation system and method thereof. Background technique [0002] With the improvement of people's living standards, the frequency of people's travel is gradually increasing, and the number of pedestrians in various public places is also gradually increasing. Especially during morning and evening peak commuting, large-scale gatherings of major festivals, sports events or other cultural public activities, the crowds in the facilities are often in a dense and crowded state. When the density of people in the building is high, the flow of pedestrians interweaves and squeezes each other, and a small disturbance may cause the crowd to enter an unstable state. If it cannot be controlled in time and effectively, it will easily lead to the occurrence of accidents such as crowd crowding and trampling accidents. [0003] Compute...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F17/50
CPCG06F30/367
Inventor 刘弘郑向伟陆佃杰张桂娟李焱陈莉吕蕾韩延斌柳广鹏刘宝玺张浩秦欣王晓静
Owner SHANDONG NORMAL UNIV
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