臺灣博碩士論文加值系統

現有全台各縣市政府路口監視器，其電路幾乎都是數位用戶迴路(x Digital Subscriber Line; xDSL)架構，此種電路架構有供裝距離與頻寬的限制，在頻寬與距離彼此矛盾情況之下，使郊區離機房較遠地方或者該區域地理環境惡劣例如陽明山硫磺區、山上潮濕區、海邊鹽分重地區之路口監視器視訊品質低落，甚至無法架設寬頻電路，這也讓該郊區地方成為治安的死角。
本論文主要探討應用被動式光網路(Passive Optical Network; PON)提升郊區路口監視影像傳輸技術與穩定性之設計與研究，PON優點為不需電源所以也稱為綠能產業，不需要中繼器可供裝距離高達20公里，上、下行傳輸速率高達1 GMb/s以上，透過光分歧器傳輸架構為點對多點，所以可減少局端光纖數與局端設備建構量，而光纖因為其具有低損耗、耐腐蝕、抗干擾、不會產生串音(cross talk)等材質優點，來改善郊區或者惡劣環境的路口監視器傳輸系統，減少人力的維護成本，填補治安的漏洞與保障人民生命財產安全，未來願景如果監控電路皆改為PON架構後，可架設無線存取點(AP)、感測器，提供加值服務如Wi-Fi熱區或透過感測器收集資訊便利人民生活。

Regarding existing intersection monitors of county and city governments in Taiwan , the circuit are almost digital subscriber loop architecture (x Digital Subscriber Line; xDSL) , there are mounted distance and bandwidth limitations for this circuit structure, due to the contradictory situation between bandwidth and distance, it makes low quality of monitor video for the suburbs far away the engine room or some poor environment ,such as sulfur area of Yangmingshan , mountain wet areas, heavy sea salt intersection ,even could not set up broadband circuit, therefore the suburbs will become policing dead.
In this thesis, we mainly discuss the application of passive optical networks (Passive Optical Network; PON) in order to improve the image transmission technology and stability of suburban intersection monitor , the advantage of POM is no need power source, it is named as the green energy industry, it could provide setting up to 20 km distance without repeater, also the uplink and downlink transmission rate is up to 1 GMb / s or more, through the optical splitter transmission architecture as point to multi point, it is able to reduce the optical fiber volume and equipment construction of central office , while the fiber because it has low loss, corrosion resistance, anti-interference, no crosstalk such material benefits to improve the intersection monitor transmission system of the suburbs or poor environment , reducing manpower and maintenance costs, also filling the security and protection of people''s vulnerability life and property safety, for future vision if the monitoring circuit are changed to PON architecture, you can set up a wireless access point (AP), sensors, providing value-added services such as Wi-Fi hotspots or collecting information through the sensors to make peoples convenient life.

摘要 ................................................i
英文摘要 ...............................................ii
誌謝 ...............................................iv
目錄 ................................................v
圖目錄 ..............................................vii
表目錄 ................................................x
第一章 緒論 .......................................1
1.1 研究背景與動機 ..............................1
1.2 研究目的 .......................................3
1.3 研究內容與架構 ..............................5
第二章 xDSL特性與架構 ..............................7
2.1 xDSL系統的發展與標準 .....................7
2.1.1影響xDSL傳輸速率之因素 .....................9
2.2 xDSL演進過程....................................11
2.2.1 ADSL架構與特色 ....................11
2.2.2無載波調幅調相( CAP)技術簡介 ...........13
2.2.3離散多重音頻(DMT)技術簡介 ...........14
2.2.4 ADSL2架構與特色 ....................17
2.2.5 ADSL2+架構與特色 ....................17
2.2.6 VDSL架構與特色 ....................19
2.2.7 VDSL2架構與特色 ....................22
第三章 被動式光纖網路PON .............................24
3.1數位匯流時代來臨加速PON的建設 ...........24
3.1.1 PON提供的服務與創造出的價值 ...........27
3.2 Optical技術 .............................29
3.2.1 Fiber to the Node (FTTN) ...........30
3.2.2 Fiber to the Building (FTTB) ...........31
3.2.3 Fiber to the Home (FTTH) ...........32
3.3 PON的演進與標準 .............................34
3.3.1 PON網路架構 .............................37
3.3.2 APON/BPON傳輸技術 ....................39
3.3.3 EPON傳輸技術 .............................40
3.3.4 GPON傳輸技術 .............................43
3.3.5 WDM-PON分波多工傳輸技術....................47
3.4 xPON標準的差異性 ....................48
第四章 應用PON技術設計路口監視器 ....................50
4.1測試環境與架構 .............................51
4.2硬體設備架構 .............................53
4.2.1光功率的表示與計算 ....................57
4.3 PON光配線網路(ODN)實作 ....................62
4.3.1光纜接續盒製作 .............................62
4.3.2壁掛式光纜引接箱製作 ....................65
4.3.3組合式SC光纖連接器製作 ....................66
4.3.4 ONT的安裝與設定 ....................68
4.4應用PON技術提升郊區路口監控器傳輸效能與穩定度之量測結果與討論69
4.4.1 xDSL 架構測試結果 ....................69
4.4.2 PON架構測試結果 ....................76
4.4.3郊區路口監視器xDSL與PON架構測試結果比較 ..82
第五章 結論 ......................................83
5.1結論 ......................................83
參考文獻................................................85

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