Crowd simulation evacuation method and system based on wolf pack algorithm and congestion detection

Abstract

The invention provides a crowd simulation evacuation method and system based on a wolf pack algorithm and congestion detection, and the method comprises the steps: obtaining real-time real scene data,and obtaining a real-time scene graph and crowd parameter information through real-time video data in the real scene data; setting evacuation scene parameter information according to the real-time scene graph and the crowd parameter information, creating an evacuation scene model and a figure model, importing the figure model into the evacuation scene model to establish an evacuation scene modelwith figures, and taking the crowd parameter information as preset evacuation crowd parameter information to perform wolf pack initialization; simulating crowd evacuation by using a wolf pack algorithm, calculating a wolf pack target function value according to the exit congestion degree of the evacuation scene model with the person, and selecting an optimal exit according to the target function value function; and when the evacuation number of the final exit is equal to the total number, ending the evacuation process. According to the invention, the evacuation exit with too high congestion degree can be effectively identified, and the crowd is guided to evacuate, so that more efficient evacuation is realized, and excessive congestion is avoided.

Description

technical field [0001] The present disclosure relates to the field of crowd evacuation simulation, in particular to a crowd simulation evacuation method and system based on wolf pack algorithm and crowd detection. Background technique [0002] The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art. [0003] As the population continues to grow, congestion has become a normal part of life. When natural disasters such as earthquakes and fires occur in public places, due to factors such as dense crowds, lack of safety awareness, and unfamiliarity with the surrounding environment, it is easy to cause large casualties. Therefore, how to achieve safe and rapid evacuation of personnel has become a top priority. . For public places with a large flow of people and complex and changeable personnel composition, people often do not know enough about the environment. However, the traditional eva...

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Problems solved by technology

[0005] In order to solve the deficiencies of the prior art, the present disclosure provides a crowd simulation evacuation method and system based on the wolf pack algorithm and crowd detection. Firstly, the real scene data is obtained, and the crowd parameter information is obtained by tracking the crowd in the video of the real scene data, and Initialize the pack of wolves, and then combine the leader wolf evaluation function with crowding detection. If the crowding is too high during the siege of wolves, a new leader wolf will be generated by comparing the crowding degree of other wolves, that is, when a certain exit When congestion occurs, the evacuated crowd will spread to other exits, which greatly improves the efficiency of evacuation

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