Public emergency evacuation path optimization method under nuclear accident

Abstract

The invention relates to an information processing technology, and provides a public emergency evacuation path optimization method under a nuclear accident. The method comprises the steps: determining the range of an emergency planning area, gridding the emergency planning area, determining a nuclear accident environment release source item, and acquiring wind field data in the emergency planning area; calculating each radionuclide activity concentration of each grid in the emergency planning area according to the accident source item and the wind field data, and evaluating a radiation dose rate in the emergency planning area; determining public emergency evacuation path road nodes according to an emergency planning area road network, and the connection relation and attribute information between the nodes, and forming an evacuation network; according to the grids to which the starting points and the ending points of the evacuation paths belong, obtaining all evacuation path sets with relatively low public radiation dose rates based on an improved chaos ant colony algorithm; and performing multi-objective decision optimization according to the evacuation time and the radiation deterministic effect of each path in all the evacuation path sets to determine an optimal path. The method provides an important basis for the formulation of a nuclear emergency plan.

Description

technical field [0001] The invention relates to the technical field of information processing, in particular to a method for optimizing public emergency evacuation route information under nuclear accidents by using a computer. Background technique [0002] The urgency of energy transformation is increasing day by day, and nuclear energy is a safe, economical, efficient and clean energy, and an important energy choice for addressing climate change. In the process of developing nuclear power, due to the influence of human, equipment, production management or environmental factors, uncontrolled release of radionuclides occurs from time to time, which brings huge losses to people. The positioning statement in nuclear power-related planning is "safely and securely advancing nuclear power construction", so emergency planning procedures are critical to protecting the population and the environment, and mass evacuation or shelter-in-place has been used as a means to protect people f...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the defects in the current public emergency evacuation route planning process under nuclear accidents, the present invention uses computer information processing technology to provide an optimization method for public emergency evacuation routes under nuclear accidents. Based on the ant colony algorithm, the traditional evacuation To solve the problem that the path planning method is too conservative, a new evacuation path planning method is proposed, which can quickly reflect the path with less radiation and improve the search efficiency of the algorithm

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