T-junction crowd evacuation stability prediction method and prediction device

A technology of stability prediction and T-junction, applied in prediction, data processing application, calculation, etc., can solve the problem that the results are not universal, the theory is difficult to generalize accurately, and it is difficult to meet the random crowd evacuation open-loop control mode, etc. problem to improve accuracy
CN110298484AActive Publication Date: 2019-10-01TONGJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TONGJI UNIV
Publication Date
2019-10-01

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Abstract

The invention relates to a T-junction crowd evacuation stability prediction method and prediction device. The T-junction crowd evacuation stability prediction method comprises the following steps: constructing a panic crowd evacuation macroscopic model of a T-junction; based on the Lyapunov stability and the macroscopic model, obtaining a feature value of the crowd evacuation balance state; addingdisturbance information, and obtaining an acceleration critical value according to the characteristic value and the disturbance information; and predicting the crowd evacuation stability according tothe relationship between the acceleration critical value and the current acceleration of the crowd. Compared with the prior art, the method has the advantages of high accuracy and reliability and thelike.
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Description

technical field

[0001] The invention relates to the technical field of crowd evacuation, in particular to a method and device for predicting crowd evacuation stability at a T-shaped intersection. Background technique

[0002] The stability determination of crowd evacuation is a complicated scientific and technical problem. Stability refers to the performance of whether the system can return to the original equilibrium state with a certain accuracy after self-adjustment when the disturbance disappears after the system is disturbed and deviates from the equilibrium state. It is very important to study the stability of crowd evacuation to judge the evolution of crowd evacuation state and to prevent crowding and stampede in time. In recent years, scholars at home and abroad have studied the stability of crowd evacuation and proposed different research methods. The research on the stability of crowd evacuation mainly includes three methods: case verification analysis, feedback ...

Claims

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