摘要
医院经常由于医患之间的处置不及时产生纠纷.为了解决这个问题,设计了一个以单片机为控制核心,结合RS-485总线技术的病房呼叫系统.系统由单片机控制继电器的通断,选择某一分机,使语音信号在通过1062A在主机和该分机之间传输.系统应用RS-485半双工串行通信协议,可以实现远距离的信息传输,采用12864液晶显示器可以动态显示病房号、病床号,利用DS1302时钟芯片实现万年历功能,采用24C02芯片存储系统的常用设置数据.
There are many dissensions due to untimely disputes between doctors and patients in some hospitals.To resolve this problem,a ward calling system was designed,which included control core of SCM and field bus technology of RS-485.The SCM controlled relays of the system to choose different extensions,getting speech signal transmitted between host and extension by 1062A.The system applies half-duplex serial communication protocol of the RS-485 and achieves long-range transmission of information.The 12864LCD can show the numbers of ward and beds dynamically.Calendar function was realized by DS1302 clock chip and system data was storied by 24C02 chip.
出处
《吉林师范大学学报（自然科学版）》
2010年第2期113-115,共3页
Journal of Jilin Normal University:Natural Science Edition
基金
吉林省科技发展计划项目(20080528)
