PDA與PC通信模型的研究和應用.pdf

1、中山大學碩士學位論文PDA與PC通信模型的研究和應用姓名：洪曙光申請學位級別：碩士專業(yè)：計算機應用技術(shù)指導教師：羅笑南20040428中山丈學碩士學位論文ABSlRACTABSTRACTAstheimprovementofthehardwareandsoftwareofPDA(PersonalDigitalAssistant)，itsfunctionsaremoreandmorepowerfulSothecommunicationfun

2、ctionsbetweenPDAandPCareveryimportantItenhancesthesupportforapplicationofPDA，suchastheupdateandbackupofthedataorthesynchronizationofthedatabetweenPCandPDA，anditprovidesthesupportsforthesystemupgradeandtheloadofnewprogram

3、TherearesomecommunicationtypesbetweenPCandPDA，suchasserialcommunication，BluetoothCommunication，inflaredcommunication，andtheserialcommunicationisthemostbasicwayOnthebackgroundofthis，basedonserialcommunication。reliedonthet

4、heoryofcommunication，refertothelayeredmodelofnetwork，thispaperdefmesacommunicationprotocolandestablishesacommunicationmodelbetweenPDAandPCInordertobuildareliableconununicationway，wemustdefineacommunicationprotocolthatinc

5、ludethestructureofdataframe，communicationinstructions，hand—shakeprotocolsandcommunicationprinciplesRef醯totheflamestructureofnetwork，weredefineadataframethatincludesthedatalength，dataandtheCRCchecksumConsideringmaybethere

6、aresomeothercommunicationtypesbetweenPCandPDA，wemustconsidertheexpansibilityofthemodelWeemployahierarchicalstructuretothemodelWedividethemodeltofourlayers：physicallayer，datalinklayer，controllayerandapplicationlayerEachla

7、yerperformsvalueaddedserviceattherequestoftheadjacenthigherlayerandrequestsbasicservicesfromtheadjacentlowerlayerThemodelCanprovidethegoodexpansibilityandreliabilitythatisproventobepracticalItmakesthecommunicationfastand

8、reliableandbuildsuptheexpansibilityofcommunicationAnditisusedinthetopicsandprojectsIhavebeenpartinandhavemadegoodeffortsKeywords：Communicationprotocol、Layeredmodel、Communicationmodel、Serialcommunication、PersonalDigitalAs