A two-way pedestrian flow simulation method and system with an avoidance mechanism

A simulation method and technology of pedestrian flow, applied in the direction of design optimization/simulation, special data processing applications, etc., can solve problems such as difficult to simulate the evacuation of people flow, and achieve the effect of avoiding blind wayfinding and speeding up evacuation

Active Publication Date: 2021-04-02
SHANDONG NORMAL UNIV
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  • Abstract
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Problems solved by technology

The social force model is a well-known microscopic model, but the original social force model equalizes individuals, making it difficult to simulate real pedestrian flow evacuation

Method used

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  • A two-way pedestrian flow simulation method and system with an avoidance mechanism
  • A two-way pedestrian flow simulation method and system with an avoidance mechanism
  • A two-way pedestrian flow simulation method and system with an avoidance mechanism

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Embodiment Construction

[0048] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0049] 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.

[0050] 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 the...

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Abstract

The invention relates to a bidirectional pedestrian flow simulation method and system with a collision avoidance mechanism. The method includes the steps that a first group and a second group which pass through each other are initialized; the first group and the second group are divided into social structures composed of several groups; all individuals of the first group and the second group are calculated through a social force model, and the vector speed and displacement of each individual are updated; when the relative position between any team in the first group and any team in the second group is located in a collision range, any one of the two teams implements a collision avoidance measure, the motion parameter is changed, and individuals in the team implementing the collision avoidance measure are driven to update the vector speed and displacement. The collision avoidance mechanism is added in an original social force model, bidirectional pedestrian flow can avoid collision in advance by using the groups and the teams as units when converging together, a plenty of risks of frictional collision when the pedestrian flow converges together are avoided, and at the same time, the self-organization phenomenon of layering in the bidirectional pedestrian flow is showed again.

Description

technical field [0001] The invention belongs to the field of crowd evacuation simulation, and in particular relates to a bidirectional pedestrian flow simulation method and system with an avoidance mechanism. Background technique [0002] In recent years, with the rapid growth of population, the number of large public places has increased, and the phenomenon of pedestrian flow, especially two-way pedestrian flow, can be seen everywhere. There is a distinctive self-organization phenomenon when individuals meet, and safety issues such as crowding and friction have attracted more and more attention. In densely populated places, the congestion of pedestrian traffic brings great inconvenience to people's travel, and the time of travel delay brings certain losses to the social economy and residents' lives. The development of traditional evacuation drills has the problems of high difficulty and low effectiveness. By using computer simulation technology for scene modeling, path op...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/20
CPCG06F30/20
Inventor 刘弘秦欣张浩刘宝玺
Owner SHANDONG NORMAL UNIV
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