The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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WebRTC-Based Remote Collaborative Learning Platform

WebRTC 기반 원격 협업 학습 플랫폼 기술 연구

  • Oh, Hyeontaek (School of Electrical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Ahn, Sanghong (School of Electrical Engineering, Korea Advanced Institute of Science and Technology) ;
  • Yang, Jinhong (Dept. of Information and Communications, Korea Advanced Institute of Science and Technology) ;
  • Choi, Jun Kyun (School of Electrical Engineering, Korea Advanced Institute of Science and Technology)
  • Received : 2015.02.27
  • Accepted : 2015.05.11
  • Published : 2015.05.31
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Abstract

Recently, as the number of smart devices (such as smart TV or Web based IPTV) increases, the way of digital broadcast contents is changed. This change leads that conventional broadcast media accepts Web platform and its services to provide more quality contents. Based on this change, in education field, education broadcasting also follows the trend. The traditional education broadcasting platforms, which just delivered the lecture in one-way, are utilized the Web technology to make interaction between teacher and student. Current education platforms, however, are insufficient to satisfy users' demands for two-way interactions. This paper proposes a new remote collaborative learning platform which able to provide high interactivity among users. Based on new functional requirements from original use case, the platform provides collaborative contents sharing and collaborative video streaming techniques by utilizing WebRTC (Web Real-Time Communication) technology. The implementation demonstrates the operability of proposed system.

스마트 디바이스의 보급과 더불어 스마트 TV, 웹 기반 IPTV등의 확산으로 사용자 측의 방송 콘텐츠 재생 단말의 급속한 변화가 일어나고 있다. 이러한 환경 변화를 통해 방송 콘텐츠들은 다양한 웹 서비스들이 결합된 응용 서비스들이 가능해졌으며 방송 환경에서의 웹 콘텐츠의 수용을 더욱 촉진하고 있다. 이러한 변화와 함께, 교육 콘텐츠의 경우 교수자의 강의를 일방적으로 전달하던 방송 형태에서 점차 웹을 응용한 온라인 교육 환경으로 발전함에 따라 점점 교수자와 학습자간의 상호작용에 대한 요구가 증가하고 있다. 본 논문에서는 웹 기술과 방송이 결합된 환경에서 양방향 교육 환경을 지원하기 위해, WebRTC (Web Real-Time Communication) 기반 원격 협업 학습 플랫폼을 제안한다. 변화된 환경에서의 원격 협업 교육 서비스 시나리오 도출을 통해 요구사항을 정의하고, 이를 지원하기 위한 웹 기반 원격 협업 콘텐츠 객체 공유 기술과 협업 스트리밍 기술을 제시한다. 특히 WebRTC를 기반으로 한 효율적인 사용자 세션 제어, 연동 및 관리를 위한 협업 교육 플랫폼 구조 제안 및 구현을 통해 실제 교육 환경에서의 적용 및 검증하고, 본 기술의 가능성을 확인하였다.

Keywords

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