一种带式输送机沿线对讲系统
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摘要
传统的带式输送机沿线对讲采用模拟载波的方式,存在易干扰,传输方式单一,断线无法检测等问题。针对这些问题,设计了一种数字对讲系统,详细介绍了带式输送机沿线对讲系统的构成,对讲设备的语音采集,语音传输,语音放大以及语音混音回音消除等关键技术,实现了带式输送机沿线数字对讲。利用传送带数字链路,同时能对带式输送机沿线关键数据进行采集传输,对提高煤矿井下带式输送机运输效率和安全生产具有很大的意义。
The traditional intercom along the belt conveyor adopts the analog carrier which is easy to be interfered, and the transmission mode is single and the broken line cannot be detected. In order to solve these problems, this paper designs a digital intercom system, and introduces the structure of the intercom system along the belt in detail, the key technologies of the intercom equipment, such as voice acquisition, voice transmission, voice amplification and voice mixing echo cancellation. It is of great significance to improve the efficiency and safety of belt transportation in coal mine by using belt digital link and collecting and transmitting the key data along the belt.
The traditional intercom along the belt conveyor adopts the analog carrier which is easy to be interfered, and the transmission mode is single and the broken line cannot be detected. In order to solve these problems, this paper designs a digital intercom system, and introduces the structure of the intercom system along the belt in detail, the key technologies of the intercom equipment, such as voice acquisition, voice transmission, voice amplification and voice mixing echo cancellation. It is of great significance to improve the efficiency and safety of belt transportation in coal mine by using belt digital link and collecting and transmitting the key data along the belt.
引文
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[3]丁德红,刘亚波.嵌入式系统中的IIS音频接口技术[J].单片机与嵌入式系统应用,2009,9(2):25-28.
[4]李仙,宋晓梅.IIC总线在移动智能终端领域中的应用[J].电子设计工程,2013(21):114-116.
[5]冯富霞,李森贵.嵌入式Linux系统[J].电脑编程技巧与维护,2007(9):71-73.
[6]秦健.追踪Linux TCP/IP代码运行--基于2.6内核[M].北京:北京航空航天大学出版社,2010.
[7]张明俊,魏瑾.嵌入式ALSA音频框架介绍与应用[J].电脑开发与应用,2013(9):63-64.
[8]王闯,任勇峰,李辉景.遥测PCM数据收发接口模块设计[J].电子器件,2016,39(4):861-865.
[9]任晓波.基于IGMP协议的移动安全移动组播访问控制方案[J].中国科技博览,2010(10):298.
[10]杜根远,邱颖豫.基于RTP的实时音频传输系统研究[J].微计算机信息,2006,22(15):94-96.