摘要:随着社会的发展、随着科技的进步，越来越多的地方需要用到一些高科技设备来为人们服务。

　　　目前医院普遍使用的是人工监控点滴输液装置器将液体容器挂在一定高度利用势差将液体输入病人体内，用软管夹对软管夹紧和放松控制滴速药物的有无将威胁病人的生命安全，为此医护人员要不定时的观察药物的情况。本设计根据需要设定液位控制高度同时具备报警、高度显示等功能，使用了红外对射传感器使其具有与液面不接触的特点，可用于有毒、腐蚀性液体液位的控制，简单、方便、安全、具有较高的使用价值。如何使这种手工操作走向自动化或半自动化让护理人员监控病人打点滴的进程时间得到充分利用，这就要求医疗器械加速自动化与半自动化进程来提高医护质量。

　　　本文介绍了一种以单片机为核心操作方便、显示直观、可集中控制、具有报警功能的智能型液体点滴速度监控系统。该系统可让医护人员在控制室监控不同受液者的输液状况，也可以直接到输液室直接改变输液状态，了解病人的输液进程及时通知处理将快完成的输液。

关键词：单片机； 测距； 传感器； 转换器； 液位监控

Abstract:With the development of society,with the progress of science and technology. The more local shipped need some high-tech equipment to serving people.

     Current hospital commonly used are artificially monitoring intravenous drip infusion fixtures,will hang in a certain height liquid container,using a liquid exchange with a patient's body,input of hoses hose clip clamping and relax control dripping speed,drugs have threatened a patient's life safety.therefore paramedics or timing observation drug situation,this design according to need to set high level control, along with alarm,highly display function,the use of the infrared DuiShe sensor,make its have no contact with liquid surface,can be used for the characteristics of poisonous and corrosive liquid level control,simple,convenient and safe,has high use value. How to make the manual operation to automatic or semi-automatic,let the nursing staff monitor patients the process of intravenous drop full use time to get medical devices,which requires the accelerated automation and semi-automatic process,improve health care quality.

     This article describes a convenient operation display intuitive,centralized control,with alarm, intelligent liquid drip rate monitoring system. The system allows health care workers in the control room monitoring the infusion of different persons by the fluid situation to the infusion room can also change the fluid state directly to understand the patient's infusion progress and timely completion of notification process will be faster infusion.

Keywords: SCM ； Ranging ； Sensors； Converter； Liquid level control