井下数字安全广播系统的设计  

Design of Underground Digital Security Broadcasting System

作　　者：崔连成[1] 刘凯[2] 马丽娜[2] 何君燕[2] 

机构地区：[1]龙口矿业集团有限公司,山东龙口265700 [2]中国矿业大学信电学院,江苏徐州221008

出　　处：《工矿自动化》2011年第9期108-111,共4页Journal Of Mine Automation

摘　　要：针对传统的定压广播、局部扩音电话及小灵通等矿用广播系统的缺点,提出了一种井下数字安全广播系统的设计方案,介绍了该系统的整体结构及软、硬件设计方法。该系统采用Ogg Vorbis音频编码方式,以CAN总线为数据传输方式,可实现远程低速率音频传输。应用结果表明,该系统具有较好的音频还原能力。For shortcomings of mine-used broadcasting systems of traditional constant pressure broadcasting, local amplified phone and personal access system, the paper proposed a design scheme of underground digital security broadcasting system and introduced whole structure and design methods of hardware and software of the system. The system can realize remote audio transmission at lower speed, which adopts audio encoding method of Ogg Vorbis and CAN bus to transmit data. The application results showed the system has better ability of audio restoration.

关 键 词：矿井 广播系统 语音通信 音频压缩编码 CAN总线 

分 类 号：TD655[矿业工程—矿山机电]