毕业设计（论文）-基于AT89C51单片机构成的医院输液监控系统.doc

摘 要 本文介绍了一种由AT89C51单片机构成的医院输液监控系统。对系统如何实现自动检测、自动报警等功能也做了详细的分析与研究本系统利用光电传感器采集点滴的有无AT89C51作为中央处理器进行信号分析与处理I/O口输出高电平，也触发蜂鸣器报警，提醒医护人员和输液病人采取相应措施，避免事故发生。整个装置的线路简单，制作方便，经济实用。Abstract This article introduced one kind the hospital infusion supervisory system which constitutes by at89C51 monolithic integrated circuit.Realized functions and so on automatic detection, auto-alarm how to the system has also made the detailed analysis and the research.This system use electro-optical sensor gathering intravenous drip whether there is, did AT89C51 take the central processor clear signal analysis and processing, the union infusion sensor, small step-by-steps composition and so on electric motor, LCM103 liquid crystal display, keyboard intelligent monitoring infusion systems, has realized the infusion process automatic monitoring.The signal sensing way has used the light emitter diode and the triode.Independently designs is suitable many kinds of for loses the bubble fast monitor, has given each function module functional block diagram.Then, the system core sensor design has carried on the detailed introduction in light of this, has analyzed the sensor physical property and the signal examination relations systematically, and unifies the actual need to design satisfies the later period signal processing being suitable many kinds of infusion liquid sensor.When the intravenous drip speed is lower than or is higher than the setting value, the monolithic integrated circuit sends out the control signal, carries on the corresponding adjustment.When some people press down reports to the police the button, with the monolithic integrated circuit connected I/O mouth outputs the high level, also triggers the buzzer to report to the police, the reminder medical care personnel and the infusion patient takes the corresponding measure, avoids the accident occurring.The entire installment line is simple, the manufacture is convenient, the economy is practical. Keywords : drop speed; sensor; sign