Evacuation planning method and evacuation planning system for disaster emergency

Abstract

The present invention relates to an evacuation planning method and an evacuation planning system for disaster emergency. According to the technical scheme of the invention, a virtual force field is established and the complex large-scale evacuation problem is described through a force field function. Meanwhile, the evacuation direction of people is determined according to the negative gradient direction of the force field function. In this way, the problem that the modeling is difficult for the complicated disaster environment can be solved, so that the problem description is simpler. Meanwhile, the computational efficiency of an algorithm is simultaneously improved. Moreover, the following factors are taken into consideration for emergency evacuation planning: the positions of to-be-evacuated people, the distribution of evacuation shelters, the capacities of evacuation shelters and the like. Therefore, the timely evacuation and guidance is provided for the to-be-evacuated people. During the solving process of the algorithm, the real-time remaining capacity parameters of emergency evacuation shelters are adopted as gravitational coefficients, so that the capacities of emergency evacuation shelters are balanced during the entire evacuation process. Therefore, a large amount of evacuation time is saved. Along with the increasing state of evacuated people, the advantages of the algorithm are increasingly significant.

Description

technical field [0001] The invention relates to a disaster emergency-oriented evacuation planning method and an evacuation planning system, belonging to the technical field of disaster protection. Background technique [0002] In recent years, various disasters that are difficult to predict and control have broken out frequently, bringing painful disasters and huge economic losses to human beings, some of which have huge and far-reaching impacts. In 2005, Hurricane "Katrina" swept across Florida and the coast of the Gulf of Mexico, causing more than 1,800 deaths, millions of people homeless, and economic losses of more than 34 billion U.S. dollars; The earthquake triggered a huge tsunami, which caused heavy casualties and property losses. The earthquake and tsunami also hit the Fukushima nuclear power plant, triggering the largest nuclear leak since the Chernobyl nuclear leak, and the number of emergency evacuations These large-scale disasters have led to large-scale group ...

AI Technical Summary

Problems solved by technology

Macroscopic evacuation research focuses on large-scale evacuation, but lacks the consideration of humanized evacuation; microscopic evacuation research mainly focuses on the evacuation of small-scale crowds in an indoor environment, but lacks consideration of the allocation of refuge places at the macro level, and is not universal

[0006] (3) There are many factors that affect emergency evacuation planning, such as the location of people to be evacuated, road congestion, the distribution and capacity of shelters, etc., but the existing research usually only considers unilateral or certain factors, and then affects The scientific nature of the research, and the lack of practical application

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