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1、学院(部)：专业班级：学生姓名：指导教师：年月日14MINETRACKTRANSPORTMONITORINGSYSTEM1abstractAtpresent,theundergroundrailtransportmonitoringsystemsadoptedbythemajorcoalminingenterpriseshavedefects,basedonthis,theundergroundrailtransportmonitoringsystemisputforward.Thearticlefirstgivesanexplanat
2、ionofthebasictheoryofminerailtransportationandexternaldevices,andthendescribestheprocessofhistoricaldevelopment,compositionandfunctionofthemonitoringsystemofminerailtransportation.ThesystemisanetworksystemmadeofPC,PLC,Ethernetswitchesswitchmachines,signalsandavarietyofse
3、nsorsviaRS-232/RS-485.ThearticlehighlightsthePLChardwareandsoftwaredesignandconfigurationdesign.ThissystembothhastheadvantagesofthePLCintherailtransportationsystemandoutstandingfeaturesofEthernetinlong-distancetransmission,ithasstablefeatures,reliabledatatransmission,low
4、-costequipment,flexiblesystemexpansion,andcanbeappliedtoavarietyoflarge,mediumandsmallcoalminesrailtransportmonitoring.2BasicknowledgeoftherailtransportVoyage,route,intervalisafundamentalpartofthemonitoringsystem.thisthreeelementsformamonitoringsystem.Trainingtoperformat
5、ransporttask,travelingfromthestartingtotheendofthejourneyiscalledaflight.Flightisdeterminedbythetransportationtask.Thenumberofthevoyageisthesamewiththenumberoftransportationtasks.Thevoyageisthecompositionofthemoni-toringsystem,it’snecessarytobesuretoallthevoyageinthedesi
6、gnofmonitoringsystemisincluded,notmissing,otherwisethesystemisincompleteandunabletocompleteallthescheduledjobs.Reasonabledispatchforrunningonthemotorvehiclecanimprovetheabilitytorun.Acertainvoyageisdividedintoanumberofapproach.Avoyageisendtoend,thereissignalprotectionone
7、achvoyageapproachingtotheentrance.Theapproachisshownbytheturnoutpositionandsignalstatedecision.Wesaythatopeningintotheroadthenpullintotheturnoutontheroadapproachthedesiredposition,thenopeningupthesignaloftheprotectioninthisapproach.Iftheswitchpositioniswrong,signalsareno
8、tallowedtoopen;Oncethesignalisopen,youarenotallowedtoswitchtochangeposition,untilthesignalisturnedoff,t
