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ComputerKnowledgeandTechnology:68(20103),,(,710055):、、、。,、、。,,PLCGPRS-DTU,GPRS-DTUGPRS,GPRS,GPRSIP,,WebService,。,,。:;GPRS;;WebService:TP271:A:1009-3044(2010)08-1830-03AnalysisandResearchofDistributedDispersedRuralAreas'WastewaterDisposalSystemFENGYan-li,WUWei-shan,ZHANGLi-hua(Xi'anUniversityofArchitectureandTechnology,Xi'an710055,China)Abstract:Combinedwiththecharacteristicofscatterednewruralsewagelayoutanditssmallerscale,complexterrainconditions,andhardrealizationofcentralizedcollectionofsewage,remotecontroltechniqueisemployed.Thesystemiscomposedoffielddatacollectionde-vices,datatransmissionequipments,softwareofmonitoringcenterandsoftwareformonitoringclient.Basedonthecharacteristicofdis-tributednewcountry,theoperatingprocessofthesystemisasfollows.First,thedataofsewagedisposalcollectedthroughfieldterminalda-taacquisitionsensorwillbetransmittedtoGPRS-DTUthroughPLC,then,thedatawillbetransmittedtoGPRSNetworkthroughGPRS-DTUconnectingintomobileGPRSNetwork,next,thedatacollectedbydatatransmissionequipmentswillbetransmittedtofixedIPmonitoringcenterservercorrespondingtointernetthroughusingtheinterfaceofGPRSNetworkandinternet,afterward,thedatawillbestoredbymonitoringcenterserverandbelaunchedthroughWebService,finally,thedatainformationwillshare.Meanwhile,monitor-ingcenterserverwilllaunchreal-timeinformationthroughreal-timemonitoringsoftwaresothatmonitorscanbrowsethedatathroughDataCenterServerconnectingontheinternet,andalsoviewothermonitorcenters'datathroughthedatainterfacelaunchedbyothermonitorcenters.Keywords:dataacquisition;GPRSnetwork;real-timemonitoring;Webservice,、、、、(),。2007“”,“,、”。“”,,、。。,GPRS。1、PLC。1)、、、。,,,。2),、、、,BOD、COD、、、/,。3)PLCPLC,,GPRS,GPRS,。:2003-03-02:(1985-),,,,;,,,。ISSN1009-3044ComputerKnowledgeandTechnologyVol.6,No.8,March2010,pp.1830-1832E-mail:info@cccc.net.cn:68(20103)2,,GPRS。GPRS,GPRS,。2.1GPRSGPRS,GSM,、IP。GPRS,IPOverPPP、。GSM(2.5G),GPRS。2.2GPRSGPRS:1)———GSM,、、;2),GPRS57.6Kbps,115Kbps~170Kbps,,GPRS384Kbit/s;3),GPRS,,;4)“alwaysonline”,,、;5),GPRS,,,,。GPRS,、、,,。GPRS,RS232/485,(、COD、、、)、、,,。2.3GPRSGPRS,GPRS,GPRS。,。1):ADSLINTELNET,IPIP+DNS。INTERNETADSL。①IP:。,。②IP+DNS:DNS,DNS,DNSIP,。IP,DNS,DNS。。2):GPRS-DTU,IP+DNS。DNS,DNS,DNSIP,。GPRS-DTU,GPRS,GPRS-DTU。GPRS-DTU,GPRS-DTU。IP,DNS,DNS。。,。3):GPRS-DTU,APNIP。APN。APN,APN。GPRSSIMAPN,APN。APN,IP。GPRS-DTU,。,DNS,IP,,;GPRSAPN,,。,,。4):APN,IP。2MAPNGPRS,IP,GGSNGRE。APN,APN。GPRSSIMAPN,APN。APN,IP。,。,IP。webservicInternet11831ComputerKnowledgeandTechnology:68(20103),1GPRS。1。3WebServerWebService,。3.1.NET2.0+SQLSERVER2005,C#。。.NET2.0SerialPort,。、、、,,,。,,。WebService,,。.NET、。,。。3.2WebService3.2.1WebService,2。、,:(publish)(find)(bind)。;,,;。,,。Web,WSDL,UDDI、,SOAP。3.2.2WebServiceXML。:1)。2)WebService,WebService,WebService。WebService:①Web,WSDL,。②UDDI,Web。③UDDIUDDI,SOAP,。④UDDI,Web。⑤WSDL,,SOAPWeb。4,,,,,,,,。,,,。:[1].GPRS[J].,2009(16).[2].WebService[J].,2009(5).[3].Webservice[J].,2009(2).[4].XMLWebService[J].,2009(8).[5].GPRS[J].,2009(9).[6].GPRS[J].:,2008(4).[7]..NET[J].,2009(7).[8].XMLWebService[J].,2009(20).[9].GPRS[J].,2009(3).[10].[J].,2009(8).21832
本文标题:分布式农村分散污水处理系统分析与研究冯艳丽
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