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1、-最新资料推荐最新资料推荐-KengoKishimoto.pdfKengoKishimoto.pdf 智能交通世界大会智能交通世界大会 ITSITS 智慧智慧城市社区人工智能城市社区人工智能 AIAI 物联网物联网 ITIT 报告课件教案报告课件教案 Overview of V2X and I2X communication services usingthe760MHz-bandforITSKengoKishimotoUTMSSocietyofJapanAbstract The traffic signal control technology has beenremarkably impr
2、oved.Speed and capacity of communicationmedia has progressed significantly.In the advancement oftrafficcontrol,thecommunicationfortransmittinginformation between roadside devices is required.However,the cabling becomes difficult because of the construction ofthe landscape.For an even more effective
3、use of equipment andradio waves,we are considering I2I with sharing frequencyresources and roadside units for I2V at intersections.2/15Background In Japan,research,development and deployment ofUTMS(Universal Traffic Management Systems)has been promotedfor the purpose of environment preservation,safe
4、ty support andreducing traffic jams.SAFETY ECO driving support systemsusing I2V and V2X are examined using the allocated 760MHz-bandfor ITS in 2019.SensorRoadside Unit(RSU)Caution!Inform blindareacontrol traffic signal timely SAFETYInform traffic signallightECO 3/15In Japan,frequency allocation of 7
5、60MHz for ITS1 1/5 5was published in December 2019.After that,the communicationstandard(ARIBSTDT-109)pursuanttothepublicwasissued.Wireless radio of 760MHz-band for ITS Media accesscontrolofARIBSTDT-109,ITS-ForumRC-012SpecificationsItemsSpecificationsOperatingfrequency760MHz-Band(A signal frequency)O
6、ccupied bandwidth 9MHz orlessError correction Convolution FEC R=1/2,3/4Modulation BPSKOFDM/QPSK OFDM/16QAM OFDMTransmission antenna power 10mW/MHzorlessCommunicationmethodBroadcastcommunicationMediaaccesscontrolCSMA/CA(OBU)+TDMA(RSU)I2XFrameV2XFrametimeTermofInfrastructureSendingTermofVehicleSending
7、GPS clockInfo of Infra Sending4/15V2X,I2V and I2IcommunicationservicesV2XI2VI2IKinds-DrivingSafetySupport-Running smoothly-Driving Safety Support-Runningsmoothly-Advanced traffic signal controlImage of I2VDrivingSupportInformationcationI2ISignalControlInformationV2XVehicleInformation5/15Applicationo
8、fI2IKinds Application SummaryTraffic Control Predict ArrivalProfile ControlSignal control so as to maximize the number ofvehicles through the intersection to predict the trafficentering the intersectionPreparing for disasterIntelligentIntersection for disasterUtilizing the detour route of the-最新资料推荐
9、最新资料推荐-communicationwithlineaggregationduringcommunicationinterruption caused by disasters Support passingof emergencyvehiclesFASTPreferentialsignalcontrolforemergencyvehicle.ApproachingemergencyvehicleinformationSendthenotification of emergency vehicle.6/15Main requirements ofI2I comm7/15ItemRequir
10、ementsRadio-wavepropagationUtilityform Destination specific destination(like unicast)RelayUseQuality Packet arrival rateover 90%In 300m away point(Lineof sight)Delay time 1895ms or lessContents Security measureUseencryption,authenticationtechnologyApplication(function)FASTV2I,I2Iletemergencyvehicler
11、unwithI2I,precedenceApproachingemergencyvehicleinformationV2I,I2V Approaching emergency vehicle information is provided toOBUsFAST emergency vehicle preemption systems8/15This systemsupports the operation of emergency vehicles such as patrolcars and ambulances by using priority signal control.2019Su
12、mitomoElectricIndustries,Ltd.AllRightsReservedExperimental V2X I2X communication systemThe testbed was set up in the urban area of Tokyo to evaluatea)FASTb)Approaching Emergency Vehicle Information system.RouterC B3 3/5 5AD760MHzRSUExperimentalsignalcontroller(ESC)Simulatedcentral computer(SCC)BADC
13、鶴巻町早稲田鶴巻町西鶴巻小前 760MHzANT760MHzRSUExperimentalsignalcontrollerTokyo(Mejiroarea)194m250m133m9/15SystemconfigurationMapEquipmentsRSU：RoadSide UnitOBU：ON-Board UnitOBUOBUOBU2019 Sumitomo Electric Industries,Ltd.All Rights ReservedFAST controls traffic signals in orderto provide emergency vehicles with a
14、n unhindered route byutilizingV2XI2Xcommunication.70MHzRSU(V2X)(I2I)(I2I)FASTSimulatedcentralcontroldirectionRouteremergencyvehiclecomputer(SCC)FASTpreemption systemsEmergency vehicledetection information 10/15C B A(I2I)emergency veh.DV2V comm.area(V2X)(I2I)(I2I)FASTcontroldirection0 10 20 30 40 50t
15、imes（C）（B）（A）（B）（D）FAST demonstration11/15 Result C B AD760MHzRSURouterFASTcontroldirection(SCCSC)Emergencyvehicledetectioninformation(RSUtotoSCC)Simulatedcentral computer(SCC)Left CLeft BLeft ATurn on atBTurnonatDTurnonatDTurnonatDV2Vcomm.area760MHzRSU760MHzRSUESC ESCESC2019 Sumitomo ElectricIndust
16、ries,Ltd.AllRightsReserved70MHz-最新资料推荐最新资料推荐-RSU(V2X)(I2X)Approaching emergency vehicle informationC BA(I2X)emergency veh.DV2V comm.area(V2X)(I2X)(I2X)Approachingemergency vehicle information The proposed I2X system letsemergencyvehiclespasssomeintersectionssafelybybroadcasting the emergency vehicle
17、s information toward othervehicles(locatedintheareatheywillpass)viaI2Vcommunication.760MHzOBEveh.-A12/15(V2X)(V2X)(I2X)LOS(Line of sight)movie2019 Sumitomo Electric Industries,Ltd.All Rights Reserved70MHz RSU(V2X)(I2X)Approaching emergencyvehicleinformationCBA(I2X)emergencyemergencyveh.DV2Vvehicleco
18、mm.area(V2X)(I2X)(I2X)Approachinginformation In case of NLOS 760MHz OBE veh.-A 13/15(V2X)(V2X)(I2X)NLOS(Non line of sight)movieSUMMARY ANDFUTURE WORKWe showed the service outline and experiment ofthe V2X,I2V and I2I communication using ITS 760MHz-band 760MHz-band can satisfy the requirements for these systemsandbe applicable to I2I communication servicesfor the advancementof traffic signal control.SUMMRYFUTURE WORKWe are going toevaluatethecommunicationforsignalinformationtothenearest intersection.14/15Please stop by 15/155 5/5 5