Simulation system and method of evacuation crowd behavior based on grid-density-relation

A technology of simulation system and simulation method, which is applied in the field of evacuation simulation, can solve problems such as not considering the influence of crowd relations and group movements, and achieve the effect of optimizing the actual evacuation process and improving evacuation efficiency

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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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  • Simulation system and method of evacuation crowd behavior based on grid-density-relation
  • Simulation system and method of evacuation crowd behavior based on grid-density-relation
  • Simulation system and method of evacuation crowd behavior based on grid-density-relation

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Embodiment Construction

[0056] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0057] In the evacuated crowd behavior simulation system based on grid-density-relationship of the present invention:

[0058] (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 ij Indicates the jth attribute of the ith individual.

[0059] (2) The relationship between individuals in the crowd:

[0060] 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 i ,p m )express.

[0061] 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 th...

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Abstract

The invention discloses a simulation system and method of an evacuation crowd behavior based on grid-density-relation. The system comprises an evacuation scene model building unit, an evacuation scene global path planning unit, a crowd activity generation unit and a crowd simulation unit, wherein the evacuation scene model building unit is used for extracting characteristics of an evacuation scene according to structural information of the evacuation scene to obtain a three-dimensional model of the evacuation scene; the evacuation scene global path planning unit used for performing global path planning on the evacuation scene according to the three-dimensional model of the evacuation scene, and calculating global paths of all entrances in the evacuation scene; the crowd activity generation unit used for performing crowd grouping according to the quantity of all entrances, a relationship between individuals in the crowd and individual location information in the evacuation scene; and the crowd simulation unit used for calculating the real-time speed of individuals in a simulation process according to a social force model, and in the simulation process, correcting the moving speed of each individual in the same group in real time, so as to keep the advancing consistency of each group, and realize behavior simulation of the evacuation crowd.

Description

technical field [0001] The invention relates to the field of evacuation simulation, in particular to an evacuation crowd behavior simulation system and method based on grid-density-relationship. 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 has the characteristics...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06Q50/26
CPCG06F30/367G06Q50/265
Inventor 刘弘郑向伟张桂娟陆佃杰李焱陈莉吕蕾柳广鹏刘宝玺张浩
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