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ID:39402461
大小:2.40 MB
页数:61页
时间:2019-07-02
《基于时间Petri网ABC马尔可夫过程的心脏急救流程优化》由会员上传分享,免费在线阅读,更多相关内容在行业资料-天天文库。
1、天津大学硕士学位论文基于时间Petri网-ABC-马尔可夫过程的心脏急救流程优化姓名:陈世乐申请学位级别:硕士专业:管理科学与工程指导教师:沈江20090501ABSTRACTAtpresent,thesuccessrateoftheheartfirstaidisonlyabout2%,andthesuccessrateoftheheartfirstaidiscloselyrelatedtothelengthofemergencyfirst-aidprocesstime.Thepurposeofthispaperresearchistoshortenthetimeoftheheartemerg
2、encyfirst-aidprocessSOastoenhancetheSuccessrateoftheheartfirstaid.Inordertoshortenthetimeoftheheartfirstaidprocessmustshortenthestarttimeoftwokeypoints(CPRanddefibrillation).Inthispaper,theheartemergencyfirst-aidprocessisdiagnosedandoptimizedbyconstructingthetimePetri—netABCMarkovprocessdiagnosticmo
3、del.Thespecificwayofthinkingisfirstturnaflowchartofthetheheartfirstaid‘emergencyprocessintothehearemergencyfirstaidPetrinetmodel,andthenconstructtheheartfirstaidsimulationmodelbasedonthePetrinet,andsimulatetheheartfirstaidprocess,obtaintheaveragetimeofactivitiestoreachallpointsandcalculatetherateofi
4、mplementationofactivities.AndthenconstitutetheheartfirstaidPetrinetsmodelwithMarkovchain.AccordtoMarkovprocess,obtainthesteady—stateprobabilityofthetimePetrinet-basedtheheartfirstaidprocess,andcombinewiththeABeanalysis,classifythesteady—stateofthetimePetrinet—basedtheheartfirstaidaccordtothebignesso
5、fsteady—stateprobability.TheA-typestateastheprocessbottleneckneededtosolvefirst.Thebottleneckofthetraditionalheartemergencyfirstaidprocessisthecapacityofnon-emergencypersonnelatthesceneandfirst—aidgrouparriveatthescenefortoolong。Finally,basedontheideaofprocessreengineering,eliminatethewaittimeofpers
6、onnelatthescene,integrateactivitiesofstartingEMSsystemandopentheairway,puttheelectricdefibrillatorinthedenselypopulatedareas,tooptimizetheheartfirstaidprocess・Inthispaper,modelingandsimulatingtheoptimizedheartemergencyfirstaidprocess,itobtainedthattheaveragetimearriveatCPRanddefibrillationoftheoptim
7、izedheartemergencyfirstaidprocessis1minuteand5minutesisshorterthanthestandardtime.Finally,thispaperanalyzedthereliabilityoftheoptimizedheartemergencyfirstaidprocess,andprovedthattheprocessisreliable.P
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