臺灣博碩士論文加值系統

由於多媒體服務之需求與日俱增，加以無線通訊技術之長足進步，促成了行動式多媒體服務系統的產生。目前行動多媒體系統的設計朝向兩大方向。一為以可攜式系統為主的系統，如PDA　(Personal Digital Assistant)，一為以車載電腦為主的系統。由於PDA主要以攜帶方便為賣點，所以有體積及電源的限制，無法像車載電腦般可以整合許多系統。故目前還是以車載電腦較有發展空間。
由於目前行動式系統之主要瓶頸在於無線通訊技術，故就本論文目前全球較為普遍之無線通訊及數位廣播系統，由其通訊原理來分析及評估其作為行動式多媒體系統的無線傳輸通道。
本論文所設計與研究的系統分為硬體及軟體兩部分。其中硬體部分先完成車載電腦的設計，然後以車載電腦為發展平台來整合其他子系統，包括無線通訊系統、衛星定位系統、多媒體影音系統及數位廣播接收器。而軟體則有兩大的部分，一為作業系統，二為應用程式，由於行動多媒體系統須連上開放式環境如網際網路，故須採用開放式作業系統，又基於車上環境考量，故選擇採用微軟Windows CE作業系統。然後以作業系統為基礎，在其上發展其他應用軟體，包括衛星導航軟體、多媒體瀏覽軟體等，並進行實地應用測試。

第一章　序論˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙1
1.1 研究動機˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙1
1.2 系統分析˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙1
1.3 論文架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙2
第二章　行動多媒體之發展與分析˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙3
2.1 無線區域網路內的電波傳播問題˙˙˙˙˙˙˙˙˙˙˙˙3
2.2 寬頻數位廣播網路架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙6
2.2.1 DAB網路架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙6
2.2.1.1 DAB 簡介˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙6
2.2.1.2 DAB 發射端架構˙˙˙˙˙˙˙˙˙˙˙˙˙7
2.2.1.3 DAB 接收端架構˙˙˙˙˙˙˙˙˙˙˙˙˙9
2.3行動網路架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙10
2.3.1 GSM/GPRS系統˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙11
2.3.1.1 GSM/GPRS 通訊技術簡介˙˙˙˙˙˙˙˙˙11
2.3.1.2 GSM/GPRS 之網路架構˙˙˙˙˙˙˙˙˙˙11
2.3.1.3 GPRS 之頻寬˙˙˙˙˙˙˙˙˙˙˙˙˙˙13
2.3.1.4 GPRS/GSM 目前及未來發展˙˙˙˙˙˙˙˙14
2.3.2 UMTS 系統˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙16
2.3.2.1 UMTS 架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙16
2.3.2.2 UMTS 的頻率範圍˙˙˙˙˙˙˙˙˙˙˙˙20
2.3.3 多媒體訊息服務˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙20
2.3.3.1行動訊息傳輸技術的演進˙˙˙˙˙˙˙˙˙20
2.3.3.2目前行動多媒體訊息服務的應用˙˙˙˙˙˙23
2.3.4 行動定位技術˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙25
第三章 非對稱性廣播、通訊、資訊網路架構˙˙˙˙˙˙˙˙˙˙30
3.1 非對稱性網路簡介˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙30
3.2 非對稱性網路基本架構及原理˙˙˙˙˙˙˙˙˙˙˙˙32
3.3 行動環境下之非對稱性網路˙˙˙˙˙˙˙˙˙˙˙˙˙35
3.3.1 網路原理˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙35
3.3.2 非對稱性網路的特性˙˙˙˙˙˙˙˙˙˙˙˙˙37
3.3.3 簡介IP multicasting˙˙˙˙˙˙˙˙˙˙˙˙˙39
3.4 MCP terminal架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙42
3.5 MCP統服務(Service)架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙43
第四章 行動多媒體系統之架構與設計˙˙˙˙˙˙˙˙˙˙˙˙˙46
4.1 行動多媒體平台(Car PC )˙˙˙˙˙˙˙˙˙˙˙˙˙˙46
4.1.1 硬體架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙46
4.1.1.1 主機板部分˙˙˙˙˙˙˙˙˙˙˙˙˙˙46
4.1.1.2 週邊架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙49
4.2 作業系統軟體架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙51
4.2.1 系統開機流程˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙51
4.2.2 簡介Windows CE 核心架構˙˙˙˙˙˙˙˙˙˙˙53
4.3 導航軟體˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙55
4.3.1 功能描述˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙55
4.3.2 導航軟體架構˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙55
4.3.3 GPS 座標轉換˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙59
4.3.4 無線網路設計(GSM＋IP)˙˙˙˙˙˙˙˙˙˙˙˙65
第五章 系統整合與實驗分析˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙68
5.1 Car PC 外觀圖˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙68
5.2 DAB外觀圖˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙72
5.3 實驗分析˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙73
第六章 結論˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙75
附錄 參考文獻˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙˙77

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