Crowd evacuation simulation method based on scene semantic information under complex indoor structure

Abstract

The invention relates to the field of crowd evacuation simulation, in particular to a crowd evacuation simulation method based on scene semantic information under a complex indoor structure, which comprises the following steps: firstly, carrying out target detection to obtain a pedestrian i coordinate and an initial speed vi, and initializing a simulation scene; determining a danger source, establishing a danger field for direct transmission of the danger signal by taking the danger source as a starting point, and establishing an information field for indirect transmission; dividing the pedestrian into different states according to the difference of the information obtained from the dangerous field or the information field, and correcting the expected speed of the pedestrian; adopting a pre-ERRT algorithm model to establish pedestrian evacuation path navigation, optimizing the evacuation direction in the pedestrian evacuation navigation path, and obtaining the final path navigation direction; introducing the affinity degree between pedestrians and pedestrian density information, correcting a social force model under a complex indoor structure, calculating the pedestrian acceleration, and performing weighted summation to obtain the direction and size of final speed variation. According to the method, the scene semantic information of a complex indoor structure can be obtained inreal time, and the crowd evacuation efficiency is improved.

Description

technical field [0001] The invention relates to the field of crowd evacuation simulation, in particular to a crowd evacuation simulation method for analyzing and utilizing scene semantic information under complex indoor structures. Background technique [0002] In today's life-oriented, people-oriented values, people advocate life safety more. How to improve people's self-rescue measures in dangerous situations and how to simulate the situation of crowd evacuation in advance have always been topics that people continue to explore. Crowd evacuation simulation is a cheap way for people to simulate, which can effectively save costs and avoid putting participants in danger. It is the most effective research method. Regarding the crowd evacuation simulation scenario, many researchers have proposed many models to simulate, such as social force model, RVO model, potential energy field model and so on. These models can simulate some phenomena and characteristics of crowd evacuatio...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the technical problems existing in the prior art, the present invention proposes a crowd evacuation simulation method based on scene semantic information under complex indoor structures. This method can obtain the scene semantic information of complex indoor structures in real time, effectively solving the problem that the current model deviates from the actual scene. The technical problem of not being able to truly integrate semantic information into the evacuation simulation system improves the efficiency of crowd evacuation

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