以太网数字广播系统的设计与实现

Design and Implementation of Digital Broadcasting Systems Based on Ethernet

为解决传统广播系统音质不佳,容易受干扰,维护管理复杂,互动性能差和无法指定区域进行广播问题,在VS2008平台下设计了基于以太网的数字广播系统,采用UDP传输方式,将系统服务器采集到的音频数据通过以太网传送到指定广播终端进行播放,同时采用多线程和多缓冲技术来保证系统的实时性和连续性,并分别设计了系统服务器和终端控制界面.测试结果表明,广播系统播放音质清晰,实时性良好,性能稳定.

To solve the problems that the traditional broadcasting system has poor quality,vulnerable tointerference,complex maintenance management,poor interactive performance and cannot specify the broadcasting terminals,a digital broadcasting system based on Ethernet was designed over the VS2008 platform,which used UDP transmission to transmit the voice data collected by the system server to the specified terminal to broadcast through Ethernet,simultaneously used multithread and multi-buffer technology to ensure the real time and continuity of the system.The controlling GUI of the server and the terminal were designed respectively.The results indicate that the broadcasting system works with clear sound quality,good real time and stable performance.