An experimental method for simulating crowd flow using zebrafish

Abstract

The invention discloses an experimental method for simulating crowd flow by using zebrafish, which includes selecting simulated animals: selecting experimental animals for simulating crowd flow and evacuation; establishing similarity criteria: analyzing the selected experimental animals and human body morphological characteristics, and determining the characteristic length and similarity Scale; Build the experimental scene model: Design and build the experimental facilities according to the similarity criterion; Determine the height of the water layer: Solve the problem of simulating the cascading actions of animals. The beneficial effects of the present invention are: the zebrafish is quite similar to human beings in terms of sensory, reaction, behavior and other characteristics, and can better reflect the human group behavior law in the emergency evacuation simulation; the similarity criterion established based on the feature size analysis, The design of the model is more reasonable and comparable; the characteristics of the living space of aquatic animals can be used to effectively overcome the "stacking" phenomenon in the evacuation of animal simulated crowds.

Description

technical field [0001] The invention relates to an experimental method, in particular to an experimental method using zebrafish to simulate crowd flow, and belongs to the technical field of public safety and emergency management. Background technique [0002] With the rapid development of urbanization, large-scale crowd movement and evacuation have become major issues and research hotspots in public safety and emergency management. The theoretical modeling of crowd evacuation is difficult, and the reliability of numerical simulation is uncertain. Experiments have always been an important research method, including organizing real crowd drill experiments and animal simulation experiments. [0003] Traditional evacuation experiments mainly use human beings as the experimental objects, and are widely used in the field of public safety research, namely "evacuation exercises". There are also a lot of precedents to follow in the specific operation methods. Not only in the field o...

AI Technical Summary

Problems solved by technology

However, this method has obvious shortcomings: during the whole process of the evacuation drill experiment, it is inevitable for the personnel participating in the drill to know the real situation, that is, "this is just a drill", which will have a fundamental impact on the reduction degree of the drill experiment

However, there is an obvious problem with this simulated animal. Ants often cascade in dense swarms, that is, they can "step" and walk on the heads of other "people". This is a common behavior of ant colonies, but it does not conform to Crowd movement characteristics, and significantly affect evacuation results

In fact, most of the simulated animals used today cannot avoid this problem, which is the technical bottleneck of animal simulation experiments.

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