臺灣博碩士論文加值系統

這項研究建立、整合了一個即時的多媒體水文資料監測平台。此平台是基於網路，並透過瀏覽器就能夠使用。這個平台包括了資料中心、儀控中心以及多媒體中心。另外，此平台可以透過可擴展標記語言/簡單物件存取協定 (XML/SOAP, Extensible Markup Language/ Simple Object Access Protocol) 的機制與台灣經濟部水利署的水資源資訊交換平台 (WRISP) 進行溝通，並取得相關的水文資料。這個系統透過通用封包無線服務技術 (GPRS, General Packet Radio Service) 及網際網路 (internet) 的協定傳送ASCII格式的資料到資料中心。而儀控中心可以讓管理員進行遠端的控制及管理。此外，本研究也針對多媒體中心有更詳細的介紹。此平台在未來可以增加預警系統，能夠對可能有危險的情況做更進一步的偵測及預防。

The study has established a real-time integrated Multimedia Platform for hydrological data. A web-based Monitoring Platform is deployed and developed under Service Oriented Architecture .NET environment. The platform encompasses a Data Center, a Control Center and a Multimedia Center. In addition, the platform can retrieve water resources data from WRISP of Water Resources Agency, Ministry of Economic Affairs in Taiwan via loosely coupled XML/SOAP mechanism. In the platform, the system transmits monitoring data in ASCII format under GPRS and Internet to the Data Center. The system can be managed via the Control Center remotely. Moreover, a multimedia center is included. The platform can be further enhanced by introducing an alert system for detecting and prevention of hazard conditions.

摘要 i
Abstract iii
Contents v
List of Figures vii
List of Tables ix
Chapter 1 Introduction 1
Chapter 2 Background 3
2.1 TDR component with an embedded system 3
2.2 DAQ component 3
2.3 Suspended Sediment Concentration and Water Level 3
2.4 Monitoring Information System 4
2.5 Data Center 4
2.6 Control Center 6
2.7 Monitoring Platform Integration 7
2.7.1 Geographic Information System (GIS) 7
2.7.2 WRISP Overview 9
Chapter 3 Multimedia Monitoring Center Design and Implementation 11
3.1 Architecture and Methodologies 11
3.1.1 DaVinci Technology 12
3.1.2 Webcam Technology 14
3.2 Components 14
3.2.1 TI DaVinci DM6446 15
3.2.2 V4L2 (Video For Linux Two) 17
3.2.3 H.264 Codec 18
3.2.4 VideoLAN 19
3.2.5 WOWZA Media Server 20
3.2.6 Flash Media Live Encoder (FMLE) 22
3.2.7 RTP (Real-Time Transport Protocol) 23
3.2.8 RTMP (Real-Time Messaging Protocol) 23
3.2.9 Hardware and Software Environment 24
3.3 Results 26
Chapter 4 Monitoring Information Platform Integration 31
4.1 Overall Architecture 31
4.2 Protocol Stacks 33
4.3 Implementation and Case Study 34
4.3.1 Data Center and Control Center 34
4.3.2 WRISP integration 36
4.3.3 ArcGIS hydrological applications 38
4.3.4 Multimedia Center Integration 39
4.3.5 Problems Encountered 39
Chapter 5 Conclusion and Future Work 40
References 41

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