1、PDCEN/TS13149-9:2020Pub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systemsPart9:Timeservicebsi.PDCEN/TS13149-9:2020Pub1.isheddocumentNationa1.forewordThisPub1.ishedDocumentistheUKimp1.ementationofCEN/TS13149-92020.TheUKparticipationinitspreparationwasentrustedtoTechnica1.CommitteeEP1./278,Intc1.
2、1.igcnttransportsystems.A1.istoforganizationsrepresentedonthiscommitteecanbeobtancdonrequesttoitssecretary.Thispub1.icationdocsnotpurporttoinc1.udea1.1.thenecessaryprovisionsofacontract.Usersarcresponsib1.eforitscorrectapp1.ication.TheBritishStandardsInstitution2020Pub1.ishedbyBSIStandards1.imited20
3、20ISBN9780S39052794ICS35.240.60;43.040.15Comp1.iancewithaBritishStandardcannotconferimmunityfrom1.ega1.ob1.igations.ThisPub1.ishedDocumentwaspub1.ishcdundertheauthorityoftheStandardsPo1.icyandStrategyCommitteeon30June2020.Amcndmcnts/corrigcndaissuedsincepub1.icationDateTextaffectedTECHNICA1.SPECIHCT
4、IONSPECinCATIONTECHNIQUEMay2020TechnischeSpezifikationICS35240.60:43.040.15Eng1.ishVersionPub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systems-Part9:TimeserviceTransportpub1.ic-SyxtmcsdePuni1.cationetdeOffcnUichcrVcricchr-Phnungs*undcontr1.cdesv6hicu1.esrouticnPartic9:ServiceSteucrungdysteme(u
5、rStnRcnhhrzcugcTei1.9:horaire*ZeitdienstThisTechnica1.Spedncauon(CEN/TS)wasapprovedbyCENon8DecemberZO19(orprovisiona1.app1.ication.Theperiodofva1.idityofthisCEN/TSU1.imitedinitia1.1.ytothre44444444444TimeServiceFunctiona1.Scope/Description&Usc-Cascs_Architecture&TransportPrOtOCOIServicePub1.icationP
6、ub1.ishedScrviccName7SRVRecord7TXTrecord一一一一一一一一“一一一一“一一一一一一一一一一一一一一一一一一一一一一“一一一一”一一一一一一一7Structureoftheservice8Overviewofoperations8Detai1.edDescriptionofdatastructures.一一一一8Updaterate-8Bib1.iographyEuropeanforewordThisdocument(CEN/TS13149-9:2020)hasbeenpreparedbyTechnica1.CommitteeCEN/TC278Inte1.1
7、igenttransportsystems*,thesecretariatofwhichishe1.dbyNEN.Attentionisdrawntothepossibi1.itythatsomeofthedementsofthisdocumentmaybethesubjectofpatentrights.CENsha1.1.notbehe1.dresponsib1.eforidentifyinganyora1.1.suchpatentrights.ThisdocumentisPart9ofascriesofEuropeanStandardsandTechnica1.Specificatio
8、nsthatinc1.udes:CEN/TS13149-7,Pub1.ictransport-Roadvehic1.eSChedU1.iMandcontro1.systems-Part7:Systemandnetworkarchitecture;CEN/TS13149-8,Pub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systems-PartSPhysica1.1.ayerforIPcommunication-CEN/TS13149-9,Pubhctransport-Roadvehic1.eschedu1.ingandcontro1.sy
9、stems-Part9:Timeservicethisdocument;CEN/TS13149-10,Pub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systems-Part10:1.ocationservicecurrent1.yatvotingstage;CEN/TS13149-11,Pub1.ictransport-Roadvehic1.eschedu1.ingandntro1.systems-Part11:Vehic1.ep1.atforminterfaceservicecurrent1.yatvotingstage).Acrdin
10、gtotheCEN/CENE1.ECInterna1.Regu1.ations,thenationa1.standardsorganisationsofthefo1.1.owingcountriesarcboundtoannouncethisTechnica1.Specification:Austria,Be1.gium,Bu1.garia,Croatia,Cyprus,CzechRepub1.ic,Denmark,Estonia,Fin1.and,France,Germany,Greece,Hungary,Ice1.and,Ire1.and,Ita1.y,1.atvia,1.ithuania
11、1.uxembourg,Ma1.ta.Nether1.ands,Norway,Po1.and,Portuga1.,Repub1.icofNorthMacedonia,Romania,Serbia,S1.ovakia,S1.ovenia,Spain,Sweden,Switzer1.and,TurkeyandtheUnitedKingdom.introductionThisTechnica1.SpcciRcationisPart9ofaseriesofEuropeanStandardsandTechnica1.Specifications.Thescopeofthisseriesison-boa
12、rddatacommunicationsystemsonpub1.ictransportvehic1.es.Pub1.icTransport(PT)vehic1.eshaveanincreasingarrayofinformationandcommunicationssystems,inc1.udingticketmachines,AutomatedVehic1.e1.ocation(V1.)systems,destinationdisp1.ays,passengerannouncementsystems,vehic1.emonitoringsystems,etc.Othersystemsar
13、cbeginningtobeinc1.udedsuchasadvertisingscreens,touristguides,WiFiTiotspotsandinfotainmentInaddition,equippedPTvehic1.ewi1.1.usua1.1.yhaveacommunicationsfaci1.itytoCnaHCvoiceanddatatobeexchangedwiththecontro1.centre,otherPTvehic1.es,PTinfrastructureandroadsidedevicesforinstanceinrequestingpriorityat
14、trafficsigna1.s.Manytypesofcommunicationchanne1.arcusedinductingpub1.icandprivatewire1.esscommunicationnetworks.Thesesystemsmaybeprovidedbyanumberofdifferentsupp1.iersandmayneedtobeintegrated.Forinstance:-aticketmachinemayneed1.ocationinformationtoupdateferestages;next-stopanddestinationinformationm
15、aybedrawnfromschedu1.einformationhe1.dintheticketmachine；vehic1.e1.ocationsystemsmaybeusedtodrivesigna1.priorityrequests.Asdataexchangebetweenfunctiona1.unitsbcmesmorewidespread,anetworkedapproachbeginstobecomeefficientWithstandardizedunder1.yingtechno1.ogy,thePTvehic1.ebeginsto1.k1.ikea1.oca1.arean
16、etwork：makinguseofIEEE802mmunicationsandtheInternetProto1.(IP)suite.Withoutac1.eartechno1.ogyframework,integratingthesesystemswou1.drequirecomp1.extechnica1.discussionseverytimeadeviceisprocured.TheexistingEN13149standardsrecognizedthis1.ongagoinrespectoftheOOrCvehic1.esystems,butthesehavenotbeenada
17、ptedtoIPnetworking.Sixhistorica1.partsofEN13149,name1.yParts1to6,havenowbeenwithdrawninfavourofthenewIP-basedapproach.ThecoreofthisnewapproachwasspecifiedintwoTechnica1.Specifications(TS);CEN/TS13149-7specificstheNetworkandSystemArchitectureforonboardequipmentItdescribesbasicprincip1.esofcommunicati
18、onsinc1.udingagenera1.descriptionofthenetworktopo1.ogy,addressesschematics,basicnetworkservices,asystemoverviewandbasicmodu1.earchitecture.CEN/TS13149-8specificsthePhysica1.1.aycrforIP-communicationnetworksonboardPTvchidcs.Thispartspecificsthecab1.es,nncctorsandotherequipmentinc1.udingpinassignmenta
19、ndenvironmenta1.requirements.Bui1.dingonthis,aseriesofspecificservicesarcbeingspecified：-CEN/TS13149-9,specifyingthestructuretobeusedbyaserviceprovidingtimedatatotheon-busnetwork： CEN/TS13149-10,!specifyingthestructuretobeusedbyaserviceproviding1.ocationdatatotheon-busnetwork,specifica1.1.yre1.ating
20、toG1.oba1.Navigationa1.Sate1.1.iteSystems(GNSS); CEN/TS13149-11,specifyingthestructuretobeusedbyaserviceprovidingdatafromthevehic1.ep1.atformtotheonbusnctwor1.usingtheF1.eetManagementSystem(FMS)forsourcedata.Thesedocumentsdrawon1.argesca1.etria1.sundertakenwithinEuropeanprojectssuchasEBSF(theEuropea
21、nBusSystemoftheFuture*project)anditssuccessors,togcAcrwithtechnica1.deve1.opmentswhichhavesincebeenadoptedbyprogrammessuchastheGermanIBIS-IPp1.atform1and,morerecent1.y,theEuropeanp1.atformITxPT2.Thishasensurednoton1.ythattheCENspecificationsarcrobust1.yprovedinpractice,buta1.sothattheyhavethesupport
22、ofmanykeysystemdeve1.opersandoperators.WithIhcscTcchnica1.SpcciRcationsfitwi1.1.beeasiertoachieve: moreefficientdeve1.opmentofPTcomponents; 1.owercost,1.owerrisksandasmthcronboardintegrationofPTequipment; moreefficientoperationandmaintenanceofonboardPTequipment; highqua1.ityintcrmoda1.passengerservi
23、cesbasedonintermoda1.PTinformation； integrationofnewPTservices.1 ScopeTheCEN13149seriesofproductsconcernson-boarddatacommunicationsystemsonpub1.ictransportvehic1.es.Thisseriesprovidesfordataservicesthatenab1.eopenandmanagedsharingofre1.evantinformation.Thisdocument,beingPart9oftheseries,specifiesati
24、mepub1.ication,enab1.inga1.1.on-vchic1.cservicestoshareacommonunderstandingofcurrenttime,basedonasuitab1.eagreedmasternetworkdock.Itcovers： thefunctiona1.scope,i.c.whichdatatheserviceprovides,why,whenandhowoften. thetransportprotoco1.,i.c.howthedataarctransmitted. theservicepub1.ication,i.c.hwtheser
25、vicecanbefoundbyothermodu1.esorapp1.ications thestructureofthedata,i.c.howthedataarcstructuredandhowthedatae1.ementsarcnamed.Thisdocumentimp1.ementstheserviceframeworkdescribedinCEN/TS13149-7.2 NormativereferencesThefo1.1.owingdocumentsarcreferredtointhetextinsuchawaythatsomeora1.1.oftheircontentcon
26、stitutesrequirementsofthisdocument.Fordatedreferences,on1.ytheeditioncitedapp1.ies.Forundatedreferences,theIatcstcditionofthereferenceddocument(inc1.udinganyamendments)app1.ies.CEN/TS13149-7:2020,Pub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systems-Part7:Systemandnetworkarchitecture3 Termsandd
27、enitionsForthepurposesofthisdocument,theterms,definitions,symbo1.s,andabbreviationsgiveninCEN/TS13149-7:2020app1.y.4 TimeService4.1 Functiona1.Scope/Description&Use-CasesThisserviceannouncesthetimesynchronization.FortimesynchronizationtheSimp1.eNetworkTimeProto1.(SNTP)sha1.1.beused.Itisbasedon2anden
28、hancesmechanismsforthesynchronizationofserverc1.ientsbasedonaservertime.UTCtimesha1.1.beusedtoavoidanyissuewithtimezonemanagement.4.2 Architecture&TransportProtoco1.Theserviceisusua1.1.yprovidedbythemodu1.einavchidcnetworkthathousestheTimeserver.ToreceiveTimedata,amodu1.esha1.1.accesstheTimeServicei
29、nordertobeab1.etoconnecttotheTimeserver.ThcTimcServicewi1.1.beaccessedusinganappropriate,defined,serviceprotoco1.ThcTimcserveritse1.fsha1.1.bereadusingSNTP.43ServicePub1.ication1.1.1 Pub1.ishedScrviccNameTheservicenameoftheTimeServicesha1.1.beTimcScrvicc.1.1.2 SRVRccordThefo1.1.owingattributesoftheT
30、imeServiceSRVrecordshou1.dbeimp1.ementedasfo1.1.ows：-.-._.SRVPortFie1.dDcnnitionVa1.ueUniquc1.dcntificrAuniqueidentifiertoavoidconf1.ictswithambiguousnamesCanbeanarbitrarydistinctnumber,thehostname,theseria1.number,etc.Se1.ectedbytheimp1.ementation-Cxamp1.csmightbe:0FD43FEmyCcmuterDeviceSN1234NameTh
31、eNameoftheserviceasdefinedin4.3.1TimeServiceTypeA1.ways-cn13149en1.3149Protoco1.IdcntiRcsthecommunicationprotoco1.:a1.waysudpforthisserviceUdPDomainA1.ways*1.oca1.(withadotattheend)1.oca1.PortUDPportonwhichtheserviceistobefound10123NOTEThefie1.dseNaincHand*U11Bquc1.dcn1.ficarea1.waysconnectedwithanu
32、nderscore-*.TheFie1.dstype-andprotoco1.*area1.waysconnectedwithadotandanunderscore*./.TheportusedfortheTimeScrvcrsha1.1.be123.TherecommendedportfortheTimeServiceis10123.Examp1.esoftheSRVrecordfortheTimeServicearcasfo1.1.ows:myComputer_TimeService._en1.3149._dp.1.oca1.SRV10123DeviceSN1234_TinieServic
33、e._en1.3149.-udp.1.oca1.SRV101230xFD43F_TimeService._en1.3149._udp71oca1.SRV101231.1.3 TXTrecordThefo1.1.owing*namC=Vahic*pairssha1.1.beprovidedintheTXTrecordoftheTimeService.AttributeNameMandatory/Optiona1.TypeDescriptionExamp1.eva1.uestxtversMandatoryIntegerRecommendedkeyforversionofTXTrecord,defa
34、u1.t11verMandatoryStringversionoftheservice1.1.3asntphostOptiona1.StringIPaddressofSNTPserver(ifnotthehostofTimcService)241.524.125.253timezoneOptiona1.String1.oca1.offsct:UToHH:MMUTC+01:30The,sntp-hosf,attributesha1.1.notbepub1.ishedifthehostofTimeServiceisa1.sotheSNTPserver.4.4 Structureoftheservi
35、ce4.4.1 OverviewofoperationsThcTimcServicedoesnotsupportanyoperations.4.4.2 Detai1.edDescriptionofdatastructuresThcTimcServiceisintendedtooperatethroughreferencetoanSNTPservice,andhasnoseparateXM1.imp1.ementation.4.5 UpdaterateTheupdaterateoftheTimeServicesha1.1.besufficienttomeettherequirementsofth
36、eexpectedConsumingappHcations.Bib1.iography1 VDV301-2-5zIBIS-IPBcschrcibungdcrDicnstc,DicnstTimcScrviccfVersion1.0,07/2016(https:/WWW,vdv,dc/301210sdsv1.Q1.pdfx?forced=truc)2 xPT.S02-OnboardArchitecturespecification.Re1.easeS02v2.0.1(http：/WikiitXPtQrg/mdcxDhD?tit1.c=S02Onboar(1.ArChitCetUrCSDCeifiC
37、atiOnSv20.1.)-Opcn1.yacccssib1.cafterfreeregistration3 RFC4330,Simp1.eNetworkTimeProtoco1./SNTP;seehttps:too1.sictf.orgrfcindcx4EN13149series,Pub1.ictransport-Roadvehic1.eschedu1.ingandcontro1.systemsMDCOPYINGWIIKOUI8SPtRM1.SSQNIXCtPIASPtRMIn1.DBYCOPVWGHIAWBritishStandardsInstitution(BSI)BS1.isthena
38、tiona1.bodyresponsib1.eforpreparingBritishStandardsandotherstadards-re1.atedpub1.ications,informationandservices.BSIisincorporatedbyRoya1.Charter.BritishStandardsandotherstandardizationproductsarepub1.ishedbyBSIStandards1.imited.AboutusV*BnrgwrrDurerdi三/OrrErr:.nyatonyd5tn8r*w*d*ed1.o1.tom.P*EWd小3Ud
39、次HM1.3rQMufy4WredG4derUtiefamatZMpdtNxx-ourCPeromMxrProaMBOrrtzatxxsatUDKard;HTaKs9aorxntardckto!r4z1.e9mK.InformationonstandardsWecarprovideyouwttekry3ertyro11jarxaorre10txcMdArdoutnor805Brm#3*daXvnorgourwoDctoJt*Mund*fBOOrCaang3Citomw*4tM11OfKroMiedcxCcrtneBuyingstandardsVoUSrmyardS*gdPFW115B92bCQ
40、N,rkdrgBrgd4teatgroup,cor/rop.MehadCOPKCar*0boPUfbMa1.fRuree1.r*tEMcrHendfw5trddEoterSurrhDeOPrn01Orgaroxiors.FordcopiescarDOfdf1.nedfromourCusiorxrSrtMCardh$mayfaersedr4rmatorxK91.orOrrWOrf%bfcbandUIeSawtortpro*uort*,youE斗tentrartfr.88orMnrAXaarPoHS&tet4Mt04ryatfPerwr依not*cutBSAPnor*jtdrwftOOPyform
41、at: ABn/Sur1.cprcTMrwcopyIafm1.ns1.crwdto43ra11wdiaerkxPeWdorrtefnj1.oorrtyuOn Z0rUfd11uytccedorE)OfPX*ror#58ProQdtrtc&WgdrwnedUtefONyandttOriyew. Asap*opynaybepvt*jkxkdCr*M(rry-0CIySurdvtXrf*Peeb4ddtrcopyIherdtdpamrg&trdxxrwr.，Ereedrore7-jr,oneODpyofttedert.Orifawto才Sne:hedxtrwnoranrotrra1.r11c.youcaruvEOrtrybyCToaongaCroCrPOduct(we5bwcxr).RePrOdUCingextractsFofPermOrrcroducCDrtf1.rttre
