单片机控制的多路呼叫系统设计

Muli-channel Calling System Controlled by Single Chip Computer

该呼叫系统采用MCS-51单片机控制,选用串行异步半双工通信的方式,串行口工作方式1,即采用具有RS 232C标准的点对点双机串行通信;由主机和分机两大部分构成,具有多路呼叫、显示、应答等功能。该呼叫系统要求各子机仅能和主机通信,子机之间的通信要通过主机进行,该设计可满足中小型医院中,医护人员与病人之间及时准确地进行全双工通信,达到既方便病人又方便医护人员,更利于提高医院护理水平。

The call system controlled by MCS-51 MCU selects the serial asynchronous half-duplex communication mode 1 serial port working mode,i.e.standard RS 232C point-to-point double-machines serial communication.By the host and the extension of two major sections,it has multi-way calling,display,response and other functions.The calling system requires that all the sub-machines communicate only to the host,and the communication between the sub-machine needs the host as a gobetween.The system can meet the requirements of the half-duplex communication between the small and medium sized hospitals,health care workers and patients timely and accurately.