具备对讲功能的矿用广播终端系统设计  

System of Mine Broadcast Terminal with Intercommunication Function

作　　者：唐丽均[1] 吴畏[2] 

机构地区：[1]重庆工程职业技术学院信息工程学院,重庆402260 [2]重庆城市管理职业学院

出　　处：《单片机与嵌入式系统应用》2015年第5期73-75,共3页Microcontrollers & Embedded Systems

基　　金：重庆市教委科学技术研究资助项目-无线认知网络中的网络环境感知技术研究(KJ1403208)

摘　　要：本文针对现有广播终端存在的不足,设计了一种既能支持实时广播、点对点对讲,还能实现本地和在线高品质音乐播放的广播终端。该广播终端采用集成高性能DSP的模拟电话适配器KSZ8342作为核心部件,利用MP3编解码芯片、音频功放设备、本地SD存储卡,实现实时广播、本地和在线音乐播放功能;另外,利用用户线接口电路芯片、外挂话柄、拨号键盘和显示屏实现点对点对讲功能。Aiming at the shortcomings of the existing broadcast terminals,a novel broadcast terminal is designed in this paper which can not only support real-time broadcast and point to point intercommunication,but also realize local and online quality music playing.The broadcast terminal adopts analog telephone adapter KSZ8342 chip integrated high performance DSP as the core,and utilizes MP3 codec chip,audio power amplifier and local memory SD card to realize real-time broadcast,local and online music playing.Besides,the broadcast terminal utilizes a subscriber line interface circuit chip,external telephone handle,dial keyboard and display screen to realize point-to-point intercommunication.

关 键 词：矿用广播 音频功放 用户线接口电路 模拟电话适配器 

分 类 号：TD65[矿业工程—矿山机电]