Development of multi point Distance Lecture System which integrates communication media

在本研究中，我们整合了一个可以连接各种通信标准的多点视频会议控制系统，然后利用地面通信网络和卫星通信系统对交互式多点视频会议系统的连接进行了测试。(1)各种通信协议互联互通的实验测试。我们演示了以下实验。[1！0]可以对应多点、多协议的视频会议附属单元的维护，和多速率[2！0]多速率连接，如2B/4B/6B与ISDN线[3！0]使用IP连接的个人计算机视频会议软件的连接[4！0]通过IP和ISDN连接的多协议连接[5！0]通过视频会议和视频流设备连接的直播和VoD通知分配[6！0]不同型号的视频会议设备的连接[7！0]通过SCS和El-Net等卫星线路与视频会议连接的实际用途SCS-局域网连接-ISDN连接的同时连接-el-Net(2)各种远程协作讲座的试验与思考。我们通过系统互联改善了综合远程讲座的环境，并将该系统用于远程协作讲座等试点。结果，我们可以编辑系统存在的问题，以及实施远程讲座的解决方案和操作诀窍。此外，我们还研究了积极利用协作讲座系统功能的远程学习模式。

In this research, we consolidated a multipoint video conference control system which can connect various types of communication standards, we then tested the connections of the interactive multipoint video conference system using ground communication networks and satellite communication systems.(1)Experimental test of interconnection of various communication protocols.We demonstrated the following experimentations.【1!○】 Maintenance of video conference attachment unit which can correspond to multipoint, multiprotocol, and multi speed【2!○】 Multi speed connection such as 2B/4B/6B with ISDN line【3!○】 Connection of video conference software for personal computer which uses IP connection【4!○】 Multiprotocol connection by IP and ISDN connection【5!○】 Live streaming and VOD notice assignment by connection of video conference and video streaming device【6!○】 Connection of video conference device with different models【7!○】 Practical use of connection with video conference with satellite lines such as SCS and el-net【8!○】 Simultaneous connection of SCS-LAN connection-ISDN connection-el-net(2)Trial and consideration of various distance cooperation lectures.We have improved the environment for comprehensive distance lectures through the interconnection of the systems and then have administrated this system to the distance collaboration lecture and such on a trial basis.As a result, we could compile the problems of the system, and their solutions for implementing distance lectures and the know-how for its operation.In addition, we examined the distance learning model in which we made positive use of the functions of the collaboration lecture system.