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Research On Real-time Evacuation Of Fire Dynamics Based On CCRP Algorithm

Posted on:2021-01-20Degree:MasterType:Thesis
Country:ChinaCandidate:W Y LiuFull Text:PDF
GTID:2392330614456275Subject:Safety engineering
Abstract/Summary:PDF Full Text Request
With the maturity of wireless sensor technology,emergency navigation through the indoor environment has become a new security application area with research value.Once a fire occurs,increasing temperature and changing smoke concentration will cause more and more channels to be blocked.If the fire spread is predicted in advance,on this basis we can grasp the time when each channel can pass safely,but the actual fire The situation is more complicated.There are always unexpected unexpected situations that cause a certain escape route to suddenly fail.Based on the CCRP algorithm,this paper develops a dynamic evacuation algorithm that can use the safe time of each channel to escape.It not only considers the impact of predictable hazard spread on the algorithm in this paper,but also responds to the sudden failure of nodes in the process of fire evacuation.In the situation,if any number of nodes fail at any time,a safe shortest path escape scheme can be quickly generated according to the real-time personnel distribution.The algorithm can ensure that the personnel can be evacuated safely in the shortest time and evacuate the personnel to the greatest extent in critical situations.The calculation result is specific and accurate.Not only the evacuation personnel are grouped and assigned a path,but also the departure timetable and arrival time of each group of escape routes can be obtained to express the purpose of accurately guiding the evacuation.In the end,this paper proves the effectiveness and feasibility of this algorithm through a large-scale shopping mall floor plan simulation using java language and compares and analyzes it with similar algorithms...
Keywords/Search Tags:Sudden failure, dangerous time, evacuation time, algorithm model, number of escapes
PDF Full Text Request
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