Forecasting Method of Regional Crowd Motion State Based on Micro-macro Transition Model

Abstract

The present invention relates to a forecasting Method of a Regional Crowd Motion State Based on a Micro-macro Transition Model. The method comprises the following steps: 1) establishing a microcosm for realizing the transition from the microcosm panic to the macroscopic pressure item; Macroscopic transformation model; 2) obtaining mobile video information parameters of a crowd; 3) based on the microscopic-macroscopic conversion model and the crowd flow video information parameter, predicting the regional crowd movement state, and displaying the prediction result. Compared with the prior art, the invention constructs the microscopic-macroscopic conversion model, compensates the shortage of the crowd evacuation modeling method to a certain extent, and provides a new train of thought for theresearch of the crowd evacuation problem.

Description

technical field [0001] The invention relates to the technical field of crowd evacuation simulation, in particular to a method for predicting the motion state of crowds in a region based on a micro-macro conversion model. Background technique [0002] In recent years, with the frequent occurrence of various fire accidents and emergencies, more and more attention has been paid to the safe evacuation simulation of emergencies in public places where crowds gather. Simulating the crowd evacuation behavior in the real scene has important social significance. It can help the emergency department to formulate corresponding emergency plans, guide the design of the scene, avoid disasters, and reduce casualties. Using computer simulation technology for scene modeling, path optimization, and crowd movement behavior modeling can minimize the cost while achieving the best evacuation drill effect. Therefore, computer simulation has become the most important method to study crowd evacuatio...

AI Technical Summary

Problems solved by technology

Specifically, the macro model focuses on considering the crowd as a whole, and can usually be used to simulate large-scale crowd movements in real time while ignoring individual behavior; the micro model models from the perspective of the individual, focusing on individual behavior and its identity. The reproduction of the known process, but the model complexity depends heavily on the number of individuals in the scene

[0004] So far, for the regional crowd movement state prediction method based on the micro-macro conversion model, there are still shortcomings such as the lack of individual panic measurement and its quantitative influence on the macro-crowd evacuation pressure item, and the conversion results are not accurate enough.

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