應用於互動式數位電視上的遠距教學架構設計

Design and Implementation of a Distance Learning System in Interactive Digital TV

林雅惠(Ya-Hui Lin)

指導教授 ： 陳銘憲

國立臺灣大學/電機資訊學院/電機工程學研究所/碩士(2005年)

https://doi.org/10.6342/NTU.2005.10299

摘要

在這知識經濟的年代，大家對於新知的渴求，隨著網際網路技術愈趨成熟，擺脫傳統教學空間、時間的限制，遠距教學已蔚為風氣。透過網路為主要資訊媒介的遠距教學，又稱數位學習，其具備隨時隨地的高取得特性，以及易於維護更新教學資訊，相較於以往遠距教學更具彈性。觀察現今數位學習發展，其瓶頸為，第一：網路頻寬的不足，導致影音品質的不穩定；第二，多媒體教材大小快速成長，限制課程製作的內容。在本篇論文中，我們將提出一個應用於數位電視平台上的互動式遠距教學服務的設計；其包含三大部分，分別為教材製作及維護管理系統，內容提供者或老師可利用其製作符合互動式數位電視播放規格的數位教材；提供遠距教學服務的互動式應用程式，學習者利用遙控器，根據其學習進度，自己選擇想要閱讀的投影片；以及考試計分系統，讓學生可於收看教育節目時，即刻接受測驗，並將答案回傳至成績資料庫，提供老師瞭解學生學習效果。為因應未來需求，其電視機上盒（STB）的應用程式開發平台，我們採用由歐洲DVB組織針對數位電視之應用及發展，所擬定之家用多媒體平台標準（Multimedia Home Platform）。此系統將E-learning擴展應用於互動式數位電視環境，藉由數位電視所提供的高畫質及完善的互動模式，改進E-learning的缺點；相較於個人電腦，易於操作的電視，透過此系統，遠距教學更能廣泛的被不同年齡層的學習者所接受。

關鍵字

數位電視 ； 多媒體家用平台 ； 遠距教學 ； 數位學習

並列摘要

Using the emerging digital technologies such as the World Wide Web and the Internet in the educational service filed has received widespread acceptance all over the world. In addition, recent development of Internet-based E-learning suggests extending the distance learning to other media which are more suitable for learners not familiar with computers. In this thesis, we endeavor to design and implement an education system on Interactive Digital TV based on the Multimedia Home Platform standard. The system consists of the following three subsystems: a web-based course material management subsystem for creating and managing the course materials, a personalized course material browsing subsystem enabling learners to browse course material according to their learning progress, and an assessment subsystem for evaluating learning achievement. Our system is flexible and extensible with existing Internet-based E-learning services in course material management, thus improves the interoperability and content reusability. In addition, since being able to review the course materials and take quizzes in an on-line manner, a learner is able to play an active role in our T-learning education system instead of a passive role in tradition T-learning educational systems.

並列關鍵字

DTV ； MHP ； Distance Learning ； Digital Learning

參考文獻

[1]Advanced Television Systems Committee, http://www.atsc.org

[4]Reinhard Baier, Christian Gran, Angela Scheller, Andreas Zisowsky, “Multimedia Middleware for the Future Home,” in Proceedings of the 2001 international workshop on Multimedia middleware, 2001, pp. 48-51.

[6]Pablo Cesar, Juha Vierinen, and Petri Vuorimaa, “Open Graphical Framework For Interactive TV,” in Proceedings of the IEEE Fifth International Symposium on Multimedia Software Engineering (ISMSE’03), 2003.

[7] Konstantinos Chorianopoulos and Diomidis Spinellis, “User interface development for interactive television: Extending a commercial DTV platform to the virtual channel API,” Computers & Graphics, 28 (2), April 2004, pp. 157–166.

[9]DVB organization, http://www.dvb.org