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矿用数字广播系统设计
引用本文:杨娟.矿用数字广播系统设计[J].工矿自动化,2011,37(8):44-47.
作者姓名:杨娟
作者单位:瓦斯灾害监控与应急技术国家重点实验室,重庆400037;中煤科工集团重庆研究院,重庆400037
摘    要:针对煤矿井下广播系统多采用模拟音频广播方式,存在传输距离短、抗干扰能力差、需要单独布线和只能进行全网语音广播等缺点,提出了一种新型矿用数字广播系统的设计方案,详细介绍了该系统的架构、主要功能、软硬件设计。该系统基于计算机技术、网络技术、音频流技术,将实时采集的广播信号量化、编码、压缩、缓存,按照网络传输协议以IP数据包形式分包传输到网络广播终端并进行播放,解决了传统模拟音频广播的不足。实验室测试及运行结果表明,该系统稳定、可靠,音、视频播放流畅,操作简单,能够满足煤矿现场的实际需要。

关 键 词:煤矿  数字广播系统  音频流技术  网络广播  工业以太网

Design of Mine-used Digital Broadcasting System
YANG Juan.Design of Mine-used Digital Broadcasting System[J].Industry and Automation,2011,37(8):44-47.
Authors:YANG Juan
Affiliation:YANG Juan1,2(1.State Key Laboratory of the Gas Disaster Detecting Preventing and Emergency Controlling,Chongqing 400037,China.2.Chongqing Research Institute of China Coal Technology and Engineering Group Corporation,China)
Abstract:To solve shortcomings that coal mine underground broadcasting system has short transmission distance,bad anti-interference ability,need separate wiring and only makes whole network voice broadcasing because it uses analog audio broadcasting way,the paper put forward a design scheme of new kind of mine-used digital broadcasting system.It introduced structure,main function,software and hardware design of the system in details.The system adopts computer technology,network technology and audio stream technology...
Keywords:coal mine  digital broadcasting system  audio stream technology  network broadcasting  industrial Ethernet  
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