基于MSP430与DTMF技术的医院呼叫对讲系统的设计  

Design of hospital call-intercom system based on MSP430 and DTMF technology

作　　者：朱柏辉[1] 万智萍[1] 

机构地区：[1]中山大学新华学院,广东广州510520

出　　处：《电子设计工程》2012年第11期179-182,共4页Electronic Design Engineering

摘　　要：当今国内的医院护理系统的发展现状,采用MSP430单片机与DTMF技术设计医院呼叫对讲系统,该系统以MSP430F149单片机作为控制核心,采用DTMF信号收发电路、DTMF信号编译码电路、振铃检测电路和显示电路等外围电路,通过进行硬件模拟实验和MATLAB软件仿真实验,验证了该系统的可行性和可靠性,可以实现拨号通话、显示信息、广播和护理级别设置等功能。该系统的设计简洁,主机芯片MSP430F149实现了低功耗,系统安装方便简单而且易于维护,成本比较低,具有较高的实用价值。The development situation of hospital nursing system at home,design hospital call-intercom system based on MSP430 and DTMF Technology,the system take the MSP430 Microcontroller as the control core, the peripheral circuits include DTMF signal receiving and sending circuit.DTMF signal coding and decoding circuit.Ring detection circuit and Display circuit and so on ,prove the system of the feasibility and reliability through the hardware and MTALAB software simulation experiment,the system has the functions of dial-up calling.display informations.broadcasting.care level setting and so on.The design of the system is concise,the host chip MSP430F149 in the system realize low power consumption , the whole system is easy to install and maintain ,its cost is low,and it has a high practical value.

关 键 词：DTMF 单片机 信号检测 呼叫对讲系统 

分 类 号：TP368[自动化与计算机技术—计算机系统结构]