基于DTMF技术的无线固定终端设计  

Design of Wireless Fixed Terminal Based on DTMF

作　　者：杨进[1,2] 

机构地区：[1]南京铁道职业技术学院通号学院,江苏南京210035 [2]江苏省轨道交通控制工程技术研究开发中心,江苏南京210035

出　　处：《兰州工业学院学报》2013年第5期5-9,共5页Journal of Lanzhou Institute of Technology

基　　金：江苏省轨道交通控制工程技术研究开发中心开放基金项目(KFJ201206003)

摘　　要：介绍了一种以单片机ATmega48、GSM无线通信模块SIM300、双音多频解码芯片MT8870及语音芯片NY3P010A为核心设计的无线通信装置,通过RJ11连接按键式电话座机,减小无线通信对大脑的辐射.系统可实现拨打电话、接听电话并具有来电语音提示及语音拨号等功能.文章对该装置的工作原理、硬件配置、软件设计及功能进行了详细论述,经样机实验证明,其各项功能完成良好.A wireless communication device using ATmega48 single-chip, Computer SIM300 GSM wireless mod- ule, MT8870 dual audio decoding chip and NY3P010A audio chip is designed, which can be connected to a tel- ephone through R J11 port and reduce radiation. This system can realize incoming and outgoing communication and has the capability of voice prompt for incoming signal and voice dialing for outgoing signal. The function principle, hardware configuration and software designing of this device are illustrated in detail. Experimental re- sult shows that every aspect of this system can work well.

关 键 词：SIM300 双音多频（DTMF） MT8870 无线固定终端 

分 类 号：TP368.1[自动化与计算机技术—计算机系统结构]