Intelligent decision-making method of safe route for underground emergent people evacuation

Abstract

The invention discloses an intelligent decision-making method of a safe route for underground emergent people evacuation. According to the method, geographic information software is utilized to automatically convert an existing CAD electronic map and introduce the converted CAD electronic map into an information base of an underground tunnel geographic information system (GIS) to form a geographic information base; the geographic information base is converted into an underground tunnel network model and then the underground tunnel network model is input into an SQL database; a temporary data list is established; and screening optimization processing is carried out on directed connected graph data in the SQL database and the processed network directed connected graph data are read in and are preserved in the temporary data list; and then, a two-dimensional array is used to store path lengths in the temporary data list, wherein each of the path length is between each two nodes; it is successively research and probe whether there is a shorter path of an intermediate node between the each of the two nodes; after iteration is completed, a shortest safe route for people evacuation is obtained. According to the invention, a multitarget determination is changed into a single target determination, so that complexity of the algorithm is reduced; basic underground information of a coal mine is actually and accurately described; and it is convenient to decide a safe channel when three kinds of accidents including water-caused, fire-caused and gas-caused accidents happen.

Description

technical field [0001] The invention belongs to a decision-making method for mine disaster rescue, and in particular relates to a decision-making method for an optimal route for underground emergency escape. Background technique [0002] At present, there are many sudden natural disasters in mining enterprises, such as gas, water, fire, and rock burst, which are very harmful and affect a wide range. When a mining disaster occurs, due to the dynamics of disaster development and the Panic state of mind, so manual selection of escape routes will have a lot of blindness. The primary task of mine disaster rescue is to guide the people in the accident site to quickly evacuate to a safe area. Therefore, it is very important to choose an optimal escape route in the shortest time, that is, the shortest distance and the least affected safe passage. [0003] The literature "Improved Implementation of Dijkstra Algorithm for the Best Disaster Avoidance Route in Mine Emergency Rescue", I...

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Problems solved by technology

[0006] The purpose of the present invention is to overcome the disadvantages of the above-mentioned prior art that the optimal escape route calculation method for underground emergency does not consider the safety impact on different channels when different types of accidents such as water, fire and gas occur, and the algorithm is too complicated and the calculation speed is slow. Provides an intelligent decision-making method for underground emergency evacuation safety routes, which can determine a shortest safe evacuation route in real time and quickly according to road interruptions caused by threats such as water, fire, and gas explosions, and the traversability conditions of shaft roads, and pass Underground broadcasting to evacuate personnel at the accident site with voice navigation

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