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
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Embodiment 1
[0042] Such as figure 1 As shown, the present invention provides a method for predicting crowd evacuation stability at a T-shaped intersection, comprising the following steps:
[0043] Construct a macro model for the evacuation of panicked crowds at T-junctions;
[0044] Based on the Lyapunov stability and the macroscopic model, the eigenvalues of the equilibrium state of crowd evacuation are obtained;
[0045] Adding disturbance information, obtaining a critical range of acceleration in the horizontal direction and a critical range of acceleration in the vertical direction according to the characteristic value and the disturbance information, and then obtaining the critical acceleration value of the group;
[0046] Crowd evacuation stability is obtained by predicting the relationship between the acceleration critical value and the current acceleration of the crowd.
[0047] The key technologies of the above prediction methods are specifically described as follows.
[004...
Embodiment 2
[0179] This embodiment provides a stability prediction device for crowd evacuation at a T-shaped intersection, including a macro model building module, a feature value acquisition module, a critical value acquisition module, and a stability determination module, wherein the macro model building module is used to construct a panic crowd evacuation at a T-shaped intersection Macroscopic model: The eigenvalue acquisition module obtains the eigenvalue of the crowd evacuation equilibrium state based on the Lyapunov stability and the macroscopic model; the critical value acquisition module is used to add disturbance information, and obtains the acceleration critical value according to the eigenvalue and disturbance information; The stability determination module is used to predict and obtain the crowd evacuation stability according to the relationship between the acceleration critical value and the current acceleration of the crowd. The prediction process of the prediction device is ...
Embodiment 3
[0181] This embodiment provides a device for predicting crowd evacuation stability at a T-shaped intersection, which includes a memory and a processor, the memory stores a computer program, and the processor invokes the computer program to execute the steps of the method described in Embodiment 1.
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