微量注射泵控制系统设计

A Control System Design of Micro-injection Pump

微量注射泵具有高精度输液和自动控制的能力,近年来被广泛应用于临床医疗。本文在分析现有注射泵的工作原理基础上,结合嵌入式技术、传感器技术和步进电机控制技术在解决微小运动控制问题具有的简易有效优势,提出了基于ARM处理器的闭环控制系统。该系统主要由主控模块、电源模块、电机传动模块、传感检测模块和输入显示模块组成,完成了报警信号检测和电机控制,实现了微量药液的智能安全注射。

The micro-injection pump with high precision infusion and of automatic control has been widely used in clinical medicine in recent years. Based on the analysis of the working principle of the existing injection pump, this paper proposes a closed-loop control system based on ARM processor by adopting the simple and effective advantages of embedded technology, sensor technology and stepping motor control technology in solving problems of small motion control. The system is mainly composed of main control module, power supply module, motor driving module, sensor detection module, input module and display module. It completes the alarm signal detection and motor control, and realizes the intelligent and safe infusion of trace liquid.