基于改进型电容检测法的输液监测系统的设计与实现  

Design and implementation of infusion monitoring system based on improved capacitance detection method

作　　者：邢奕鹏 胡敏露[1] 王国静[1] 王京[1] 王卫东[1] XING Yi-peng;HU Min-lu;WANG Guo-jing;WANG Jing;WANG Wei-dong(Chinese PLA General Hospital,Beijing 100853,China)

机构地区：[1]解放军总医院,北京1008531

出　　处：《医疗卫生装备》2018年第4期43-46,共4页Chinese Medical Equipment Journal

基　　金：国家自然科学基金(61701540);解放军总医院临床科研扶持基金(2017FC-ZHCG-2003)

摘　　要：目的 :设计一种高性能、可靠、实用的无线输液监测系统,以满足目前输液监护对自动化的迫切需求。方法 :该系统由输液监测仪、智能网关、上位机3个部分组成。采用AD7746芯片监测电容,利用I2C串行总线实现电容数据的回读,采用CC2530单片机对电容数据进行差分计算并判别当前输液状态,利用Zig Bee技术实现数据的无线实时传输。结果:该系统可对多个输液节点的输液量及输液速度进行实时监测,且采集的数据准确可靠。结论:该设计有效克服了原有监测方法的弊端,大大提高了监测的实用性和可靠性,为输液监测提供了一种更加行之有效的方法。Objective To design a high-performance,reliable and practical wireless infusion monitoring system to realize automated infusion monitoring.Methods The system was composed of an infusion monitor,an intelligent gateway and a host computer,which used AD7746 chip to monitor the electric capacity,I2C serial bus for capacity-related data readback,CC2530 SCM for difference calculation and infusion state determination,and ZigBee technology to execute wireless data transmission at real time.Results The system carried out multi-node monitoring on volume and velocity at real time,and the acquired data were accurate and reliable.Conclusion The system gains advantages over the traditional ways in practicability and reliability when used for infusion monitoring.

关 键 词：输液监测 电容检测法 AD7746芯片 CC2530单片机 ZIGBEE技术 

分 类 号：R318.6[医药卫生—生物医学工程] TH772.2[医药卫生—基础医学]