二线制医院呼叫系统的研制

针对医院四线制呼叫系统存在着系统安装、维护困难和无线呼叫系统易受外界干扰的问题,设计了一种基于单片机的二线制呼叫系统。该系统采用有限状态机模型和＂主机查询＂方式,在保证了系统实时性的同时,有效解决了多个分机同时呼叫主机引起冲突的问题。经过临床应用,该系统有效解决了系统安装、维护困难和易受外界干扰的问题。系统实时性强、可靠性高、成本低、安装及使用方便,具有很强的实用价值。

Development of Two-wire-based Medical Intercom System

In four-wire-based medical intercom system exist the problems of difficult installation,and maintenance,and the wireless medical intercom system is vulnerable to outside interference.This paper proposes a two-wire-based medical intercom system based on single chip,which uses a finite state machine model and the host inquiry mode to ensure the real-time while effectively solve the conflict caused by multiple extensions calling the host at the same time.The clinical application indicates that the system could...