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MCS-51与DTMF技术的医院护理对讲系统;该系统主要以MCS-51单片机为核心,采用基于DTMF信号的有线通信技术,实现双向对讲等主要功能;其优点是省时、可靠性高、抗干扰能力强,避免了脉冲拨号慢,容易产生畸变导致通信误码率高的缺陷;采用总线式布线方式,使系统布局简单,便于检测维修,节约设计成本等优点;分机数为72个,并可根据实际情况进行扩展,能满足各种规模医院的要求,并预留了接口与PC进行通信;整个系统经济实惠,性能稳定;样机已经经过实验运行验证了其有效性和实用价值,具有良好的推广应用前景。
A nursing and calling talk system based on MCS-51 and DTMF was designed through analyzing the status of hospital nursing system at home and abroad. This system mainly consists of MCS-51 single chip, based on the DTMF signal of wired communication tech- nology, achieved the main function such as call-intercom. The advantage was a time-saving, high reliability, strong anti-interference a- bility, avoid the high error rate because of pulse dialing slow and the distortion. By using bus wiring way, so that the system is simple, easy to detect, repair, save the design cost. The system has 72 extensions, and can be extended according to the actual situation, and can to meet the requirements of all sizes Hospital, and set aside an interface to communicate with the PC. The whole system is economical, stable per- formance. The prototype has been running experiment verified its effectiveness and practical value and has a good prospect of application and extension.
出处
《计算机测量与控制》
北大核心
2013年第7期1908-1910,1913,共4页
Computer Measurement &Control
