基于单片机的输液监护器设计.doc

毕业设计

基于单片机的输液监护器的设计

摘 要

针对目前我国大部分医院在对病人进行静脉输液治疗是医护人员监护任务繁重的问

题，设计了一套面向所有大中小医院和诊所的医院输液监控系统。本系统以 PC 为上位机

作为整个系统的控制监控中心，用单片机 AT89C51 为核心作为下位机通过光电传感器对吊

瓶的液位进行检测及报警，并对滴速进行精确地检测与控制。上位机与下位机用 RS485 总

线进行串行通信，能够使医护人员实时了解输液状态。论述了该系统的检测原理、总体结

构、主要功能部件设计和软硬件系统的组成。该系统低功耗、成本低、性能稳定、便于携

supervision system .It is faced to all the hospitals and clinic. This system take the PC as it’s

master machine. The PC is the controler of the whole system. Take the single chip AT89C51 as a

core of the next machine which will test and display the level of the liquid bottle. It can examine

and control the speed of lose a liquid accurately. PC communicate with single chip by the total

line of RS485.It can make the nurses know the status of loses liquid while patients take the

personnel solid. Discussed the constituting of examination principle, total structure and main

function parts design and the constitution of software and hardware system. The system is low

achievement consumes, low cost and stable function and easy to take, the function is strong.

KEYWORDS Supervision of transfusion;AT89C51; signal communication

目 录

3 输液监护器的硬件设计 …………………………………………………… 5

附录 ………………………………………………………………………………………… 44