摘要
在分析国内外医院护理系统的现状基础上设计了基于DTMF的医院护理呼叫对讲系统,该系统主要以单片机AT89C52为核心,采用DTMF信号发送、DTMF信号接收、LED发光二极管、LED数码管显示等外围电路以及相应的控制程序,实现了通过电话拨号进行呼叫、显示、呼叫提示、查询、对讲及护理级别的设置和删除等功能。该样机经过实验运行验证了其有效性和实用价值,并已投入小批量试生产,具有良好的推广应用前景。
A nursing and calling talk system based on DTMF was designed through analyzing the status of hospital nursing system at home and abroad, which mainly consists of AT89C52 single chip, DTMF signal transmission, LED, LED digital display and other peripheral circuits, as well as its corresponding control procedures, the functions of call, display, call prompting, inquiry and callback by dialup, the setting and deletion of nursing level are realized. It has practical value, good expansion and application prospect.
出处
《现代电子技术》
2010年第13期143-145,共3页
Modern Electronics Technique
