电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2012年
11期
179-182
,共4页
DTMF%单片机%信号检测%呼叫对讲系统
DTMF%單片機%信號檢測%呼叫對講繫統
DTMF%단편궤%신호검측%호규대강계통
DTMF%Microcontroller%signal detection%call-intercom system
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、广播和护理级剐设置等功能。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。
噹今國內的醫院護理繫統的髮展現狀，採用MSP430單片機與DTMF技術設計醫院呼叫對講繫統，該繫統以MSP430F149單片機作為控製覈心，採用DTMF信號收髮電路、DTMF信號編譯碼電路、振鈴檢測電路和顯示電路等外圍電路，通過進行硬件模擬實驗和MATLAB軟件倣真實驗，驗證瞭該繫統的可行性和可靠性，可以實現撥號通話、顯示信息、廣播和護理級剮設置等功能。該繫統的設計簡潔，主機芯片MSP430F149實現瞭低功耗。繫統安裝方便簡單而且易于維護，成本比較低，具有較高的實用價值。
당금국내적의원호리계통적발전현상，채용MSP430단편궤여DTMF기술설계의원호규대강계통，해계통이MSP430F149단편궤작위공제핵심，채용DTMF신호수발전로、DTMF신호편역마전로、진령검측전로화현시전로등외위전로，통과진행경건모의실험화MATLAB연건방진실험，험증료해계통적가행성화가고성，가이실현발호통화、현시신식、엄파화호리급과설치등공능。해계통적설계간길，주궤심편MSP430F149실현료저공모。계통안장방편간단이차역우유호，성본비교저，구유교고적실용개치。
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.
