Explosive crowd evacuation method and system in earthquake disaster obstacle environment

Abstract

The invention discloses an explosive crowd evacuation method in an earthquake disaster obstacle environment, and the method comprises the following steps: obtaining target building data, building a model, and carrying out the time-history analysis; establishing a digital damage model of the seismic acceleration based on the data sample; building damage distribution prediction is carried out according to the damage data, and a building damage prediction value is determined by adopting an anti-seismic performance evaluation method; building an obstacle environment according to the building damage predicted value; selecting an optimal evacuation scheme with the highest evacuation efficiency; inputting crowd distribution information monitored in real time into the injury model, and establishing dynamic interaction between the real world and the digital model; explosive crowd evacuation is simulated according to the optimal evacuation scheme, and the optimal path is sent to the crowd; and dynamically guiding and evacuating the crowds actually gathered in the building in a real-time interaction mode. Through the injury model and obstacle environment establishment module, the dynamic prompt module and the path planning module, evacuation is quicker and more reasonable, and more time is won for emergency growth of crowds.

Description

technical field [0001] The invention relates to the technical field of disaster prevention and reduction, in particular to a method and system for explosive crowd evacuation in a disaster-obstructed environment. Background technique [0002] Earthquake is one of the most serious natural disasters in the world, and it is also one of the main causes of building damage and casualties. With the occurrence of earthquakes, the damage of large public buildings has become more and more complicated, which has increased the difficulty of emergency evacuation. Therefore, the problem of crowd evacuation under earthquake disasters in large public buildings has become a hot research topic today. With the improvement of earthquake early warning and earthquake resistance of buildings and buildings, the current earthquake evacuation scenarios are mainly transformed into two situations. One is the evacuation research within a short period of time from the early warning signal issued by modern...

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Problems solved by technology

[0004] With reference to the above disclosed Chinese patent, a simulation method for emergency evacuation of crowds in emergencies based on the spatio-temporal interaction process has the following deficiencies: interaction, using socialforcemodel to simulate the interaction between individuals in the case of accidents, without considering the relationship between individuals and the environment in emergencies, such as emergencies where earthquakes have a greater impact on the environment

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