Crowd simulation method for social force model based on relative speed

Abstract

The invention relates to the computer graphics and crowd simulation technology, in particular to a crowd simulation method for a social force model based on relative speed. The method comprises the following steps: carrying out simulation calculation on a simulation experiment by using an improved relative speed social force model; obtaining simulation data including the speed, the speed direction and the position of the pedestrian; performing simulation modeling according to the simulation data, and displaying a simulation result. Compared with an existing relative speed-based social force model formula, the improved relative speed-based social force model has the advantage that a calculation formula of the improved relative speed-based social force model adds a calculation item of the social psychological force of the pedestrian at the current position. By improving the relative speed of the social force model, the pedestrian oscillation problem can be effectively reduced, and the pedestrian overlapping problem can be avoided, so that the social force model is more authentic in crowd evacuation simulation application.

Description

technical field [0001] The invention relates to computer graphics and crowd simulation technology, in particular to a crowd simulation method based on a relative speed social force model. Background technique [0002] The social force model was proposed by Helbing in 1995, and was enriched and improved in 2000. The crowd simulation programming code based on the social force model was released (http: / / angel.elte.hu / ~panic / ). The social force model is mainly used in research directions such as pedestrian behavior, crowd movement rules, and crowd evacuation simulation. Although the social force model can simulate a variety of crowd self-organization phenomena, there are still problems such as pedestrian oscillation and pedestrian overlap. Therefore, many scholars later enriched and improved the social force model in terms of force range, pedestrian demand space analysis, and algorithm optimization for the purpose of solving the problems and unreasonable phenomena in the social...

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Problems solved by technology

[0003]The existing social force model based on relative velocity, that is, the social force model proposed in the paper "A modified social force model considering relative velocity of pedestrians", although it can effectively reduce pedestrian shock However, in the simulation experiments such as arch congestion and bottleneck swing, there are pedestrian overlapping problems, which lead to the failure of the simulation experiment

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