【摘要】 基于卫星的远程教学系统以其宽带宽、广地域、实时双方向、耐灾害以及容易设置等特性被世人瞩目,但是其高的建设成本以及高通信费用却限制了其发展。该文从实际出发,通过卫星通信线路和地上线路的有机结合,构筑了低成本、高速率的基于卫星的远程教学系统,并在其上进行了模拟教学实验。就教材服务器设置问题提出了两种解决方案,同时利用Java开发了远程控制程序。更多还原

【Abstract】 Distance learning based on satellite system is focused world scopes attention upon the characteristics of broad bandwidth, vast zone, real time & two direction, enduring calamity and setting up easily. But it is limited by the high cost of building up and the high communicating expenses. This paper constructs a new practical distance learning system that is low cost and high speed by the means of satellite LOG combining with ground connection well. Some simulate teaching experiments have been done, it also proposes two projects to solve this problem in teaching material servers, and exploits the distance control programs by using Java.更多还原