电话_电脑_电视和电力网_四网合一_的概念与关键技术

21220012ProceedingsoftheCSEEVol.21No.2Feb.2001n2001Chin.Soc.forElec.Eng.:025828013(2001)0220060206,,(,710049)CONCEPTANDKEYTECHNIQUESOFUSINGPOWERTRANSMISSIONLINESASCOMMONPLATFORMFORTELEPHONE,COMPUTER,TELEVISIONANDPOWERTRANSMISSIONNETWORKSZHANGBao2hui,LIUHai2tao,CHENChang2de(ElectricalFaculty,XianJiaotongUniversity,Xian710049,China)ABSTRACT:Theconceptofusingpowertransmissionlinesasonecommonplatformfortelephone,computer,televisionandpowertransmissionnetworks,i.e.fournetworksononecom2monplatform,ispresentedinthispaper.Itstechnicaldemandsareanalyzedindetail.Consideringthebreakthroughindigitalvoicesystemanddataexchangetechnique,theprobabilityofimplementingthisconceptisdiscussed.Inthispaperacon2ceivedframeforfournetworksononecommonplatformbeingimaginedisgiven.Somekeyproblemswhichmustbesolvedfortheimplementationoffournetworksononecommonplatformarepointedout.KEYWORDS:powerlinecarriercommunication;fournet2worksoneplatform;accessnetwork;broadband:,,,,:;;;:TM73:A121,,Internet,1,,IP,1997,(DPLDigitalpowerline),223Mb/s,10Mb/s,ADSL211.536Mb/s,,,,22.1,(CircuitSwitching),(PacketSwitching),,,:InternetPC,;,,IP,16kb/sIPIP,,,,IP,,IP,,,IP,IP,,2.2Internet90,,2000351990200010,2,,1990,E2mail,1kb/s;1995,Web,50kb/s;2000,,5Mb/s10,4IP,:,WebLANWebkb/sMb/s,LANMb/sMb/s;,,Email,,,Email;,,2.3,,,,MPEG1MPEG2MPEG4,MPEG7,2001:MPEG1(11172)1.2Mb/sNTSC3523240472Mb/s,1.2Mb/sVOD,,16kb/s,CD128kb/s150kb/s,,2.4,,,,,33.1,,,,162:,3.22090,,199710,NorwebNortel1998,Norweb2000,1Mb/s,ISDN101999311,RWE(Ascom),IS2DN2019994,,,199950Kb/s1.5Mb/s,1210Mb/s3.31997,,MediaFusion1998:2.5Gb/sWilliamLukeStewart:,1990,,,Stewart,(maser)Stewart,,AlexanderGrahamBell3.4,(PowerLineTelecommunication),PTF,PLCForumPTF3:;1Mb/s;,,199767WTO,,,,19935EN2ERGIS,21SDH400kV,BBC10,BBC1BBC2,31992,2700km(OPGW),OPGW,,,13000km,(OPGW)(GWWOP)(ADDS),AT&TMCI,,199312,,,,,11,4,CNCnet(2621)IP,CNCnetIP,,,,,44.11,(DPLCModem)DPCLModem5,4EthernetDPLCModem,,DPLCModem,:;;(DPLCAM)DPLCAMDPLCModemInternetDPLCAM,4.21924,M,BHz,=2Blog2Mb/s1948,S/NBHz=Blog2(1+S/N)b/s,,,NorwebNortelDPL,2.23.5MHz4.25.8MHzADSL,,ADSL,04kHz;ADSL4.4kHz1MHz,,CENELCE,:(1),;(2),LAN,,,,1Fig.1Frameoffournetworksoneplatform362:4.3,,4.3.11997,(ISPLC),PLT,PLT12ISPLC,CDMA34OFDM(1)(SpreadFrequency),,,,,,(2)(CDMA),,,,,CDMACD2MA,,,,CDMA,(3)(OFDM)OFDM,,,OFDM,4.3.2,,(FEC),,,56dB,:RS(ReedSolomon)TurbocodesVLSI()DSP4.431111,,,:;;,,,,,,,4.5DPLCModem,DPLCModemDTU-C(DPLCTransmissionUnit-Cen2tral)DPLCModem,DPLCAM(DPLCAccessMultiplexer)2,1,1DPLCAMDPLCAMDPLCAM,IP,,,IPIP46214.6,,,,5(1),;(2),;(3),;(4):[1]DrJohnNewbury.Powerlinecarriersystemsforindustrialcon2trolapplications[J].IEEETransonPowerDelivery,1999,(4):119121196.[2]DrJohnNewbury.Potentialcommunicationservicesusingpowerlinecarriersandbroadbandintegratedservicesdigitalnetwork[J].IEEETransonPowerDelivery,1999,(4):119721201.[3]DrJohnNewbury.Potentialmeteringcommunicationservicesus2ingthepublicinternet[J].IEEETransonPowerDelivery.1999,(4):120221207.[4]DrJohnNewbury.Communicationrequirementsandstandardsforlowvoltagemainssignalling[J].IEEETransonPowerDeliv2ery,1998,13(1):46252.[5]DrJohnNewbury.Developmentfortheelectricutilitiesnetworkstowardsthenationalinformationinfrastructure[J].IEEETransonPowerDelivery,1996(3):120921213.[6]DrJohnNewbury.Acommunicationinfrastrutureforsouthwest2ernelectricity[J].IEEETransonPowerDelivery,1996(3):120121208.[7]JohnBorland.Powerline:thefutureofbroadband?[R].CNETNews.com.May31,1999.[8]RichardUrban.BusinessdallasmicrosoftandAT&Tbeware:thewritingisonthewalldallasinventorlukestewartsdiscoverychangeseverything[R].dmagazine.com,1999.[9].,()[J]..1999.23(12):127.[10].,()[J]..1999.23(13):125:2000207203;:2000210225:(19532),,,,;(19762),,,;(19772),,,()(59continuedfrompage59)8(Tw=10.0)Fig.8Activepower(Tw=10.0)H,,,,(15)Riccati,,,,,:[1],.[M].:,1988.[2].[M].:,1993.[3]LuQiang,SunChuanxiao,SunYuanzhang.Nonlineargovernorcontrolforhydroturbinegeneratorssets[R].IEEETENCON93Beijing.[4],,,.[J].,1994,34(1):7214.[5]Vanderschaft.L22gainanalysisofnonlinearsystemsandnonlinearstate2feedbackHcontrol[J].IEEETransAC,1992,37(6):7702784.[6],.[M].:,1993.:1999212215;:2000206214:(19722),,,,;(19542),,,;(19372),,,,()562: