基于XMPP協(xié)議的移動設備無障礙實時方位共享系統(tǒng)的研究與實現.pdf

1、浙江大學研究生學位論文獨創(chuàng)性聲明本人聲明所呈交的學位論文是本人在導師指導下進行的研究工作及取得的研究成果。除了文中特別加以標注和致謝的地方外，論文中不包含其他人已經發(fā)表或撰寫過的研究成果，也不包含為獲得逝江大堂或其他教育機構的學位或證書而使用過的材料。與我一同工作的同志對本研究所做的任何貢獻均已在論文中作了明確的說明并表示謝意。學位論文作者簽名：佾、峰簽字日期：年月日學位論文版權使用授權書本學位論文作者完全了解逝姿盤堂有權保留并向國家有

2、關部門或機構送交本論文的復印件和磁盤，允許論文被查閱和借閱。本人授權逝鎏塞堂可以將學位論文的全部或部分內容編入有關數據庫進行檢索和傳播，可以采用影印、縮印或掃描等復制手段保存、匯編學位論文。學位：=文篆密≯用本授權書二師簽名：卜學位論文作者簽名：際箏導師簽名：1年月F!AbstractInthesecondquarterof2015，ChinaCenterforInformationIndustryDevelopmentpublishe

3、dtheWhitepaperonthedevelopmentofmobilesmartterminalindustry(2015edition)，aimingtoconcludethesituationofthedevelopmentinmobiledeviceindustrycomprehensivelyThepapershowstheindustryofmobilesmartterminaldevelopedrapidlylasty

4、earacrosstheglobeThedemandsfromusersonservicesprovidedbythedevicesaremoreandmorepluralisticnowGeographiclocationsharingsystemcanberealizedmoresufficientandlowcostthankstothepopularityofGPSamongmobiledevicesandtheconvenie

5、nceofconnectingintemetviaWiFiand4GnetworkFirstlyweproposedamethodofsharinggeographiclocationinformation，whichisbasedonXMPPprotoc01Thedeviceswouldadjustthefrequencyofsendinglocationmessageaccordingtotheconditionofdistance

6、betweendevices，andthedevicemovingspeedbothConsequently，thismethodwouldavoidsendingmessagesfrequentlywhilethedevicesmovingslowlyorevenbeingstillOntheotherhand，itwouldshortenintervalsbetweenmessageswhilethedevicesmovingata

7、highspeed，aimingtoguaranteethattheinformationwouldbesharedinrealtimeAsaresult，thismethodmanagedtoguaranteetheperformanceofreal—time，withavoidingwastingnetworkresourceatthesametimeWhat’Smore，topreventtheleakageofprivacyth

8、emethodwouldencryptionthemessagebeforesendingitSecondlywecomposedavoice—promptbasedmethodwhichperceivestheusers’intentionviasensorsembeddedinthedevices，toprovidetheconvenienceofacquiringtheinformationaccessiblyFinallywei