为了解决人工监测输液治疗所存在的问题，缓解医护人员的工作压力，设计了一种基于光电监测技术、串口通信技术的监测系统。本液体点滴速度监控装置采用单片机作为核心控制芯片，由液晶显示模块、电机驱动模块、传感器模块、电源模块组成。实现点滴速度控制、液晶显示点滴速度、点滴测速等功能。在机械结构上，用一个步进电机，再外加一个定滑轮，来控制滴斗与受液瓶之间的高度，以达到控制液滴的速度目的。采用PWM 驱动芯片控制电机，反射式红外传感器检测液滴滴落的速度，LCD128*64显示点滴的速度。基于可靠的硬件设计和稳定的软件算法，实现题目要求。而且附加实现主从机通信等扩展功能。-In order to address the treatment of intraocular fluid by monitoring the problems and ease the work pressure of health care professionals to design a photovoltaic-based monitoring techniques, serial communication technology of the monitoring system. The speed of the liquid drip monitoring device single-chip control as a core chips, by the liquid crystal display module, motor driver module, sensor module, power module. To achieve speed control drip, drip liquid crystal display speed, bit by bit gun functions. In the mechanical structure, the use of a stepper motor, and then plus a fixed pulley, to control the drip bucket with the bottle between the liquid height, in order to achieve the purpose of controlling the speed of droplets. PWM driver chip used to control motors, reflective infrared sensors detect the speed of droplets drip, LCD128* 64 shows that the rate of drip. Hardware design based on a reliable and stable software algorithms, the requirements to achieve the title. And the a