Inter-group avoidance and intra-group cooperation model based on social force model

Abstract

Pedestrian movement and the mutual relation between pedestrians and the environment are studied through crowd simulation, and a method is used for pre-event prediction or post-event inspection for urban infrastructure planning, large public activity planning, emergency evacuation of emergencies and the like. According to the method, common behaviors such as pedestrian avoidance, congestion, congestion, attraction and repulsion in real life can be simulated by constructing mechanical models between pedestrians and between pedestrians and the environment, and the movement mode of pedestrians indifferent scenes can be simulated by combining the particularity of pedestrians in different scenes. According to the method, the inter-group avoidance behavior and the coordination behavior of the sub-group in the group are added into the model; the avoidance behaviors in different environments can be simulated, and if the sub-groups are forced to be separated in the avoidance process, the different rows of sub-groups can be kept in central symmetry by adding the force that the rear row of sub-groups get close to the front row of sub-groups, and a certain distance beneficial to walking is kept. On one hand, the current crowd simulation is widely applied to the fields of travel, fire protection, buildings and the like, and the quality of a crowd simulation result meets the requirements ofreality and rapid visualization; and on the other hand, the model better conforms to real pedestrian behaviors, and special phenomena under different attribute pedestrians and scenes can be simulatedby adjusting parameters, so that the model has very high social application value.

Description

technical field [0001] The present invention is a model for simulating group behaviors of crowds, especially about avoidance methods among different groups and interaction methods of different subgroups within the same group, which can simulate group avoidance behaviors and behaviors in different crowded environments. Behaviors such as attraction, repulsion, and center alignment between subgroups. Background technique [0002] Crowd simulation is of great significance to urban space analysis and service applications, such as building design and rationality testing, infrastructure planning, commercial location selection, and emergency evacuation. From a microscopic point of view, crowd simulation must not only express the behavior of independent individuals, but also simulate behaviors such as avoiding collisions with other pedestrians and obstacles, moving towards a designated destination, and constantly adjusting speed and direction. However, since the majority of pedestri...

AI Technical Summary

Problems solved by technology

However, the social groups simulated by these models are relatively loose. In a complex environment, members of the same group will be scattered or even far apart, that is, they cannot form a certain structure without gathering in space.

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