【正文】 ttle volume detection alarm and dynamic display of transfusion speed． Users can through the PC to control transfusion the system also actualize multimachine munication， that is， a master station to control multiple machines from a station and the master． slave data transmission between． When the infusion end or infusion speed abnormal， slave light—emitting diodes and buzzer to alarm， and will alarm signals through serial transmission to the master， stood by monitoring software realization and buzzer soundlight alarm． In the overall program design,in ensuring the use of design systems to achieve the required accuracy and stability of the premise， taking into account the system’s portability，practicality， reliability， electrical systems were optimized． Finally,the infusion monitoring system design by this paper， and point out future research directions and priorities． Keywords： single chip； PID； Stepper Motor； Can Bus； PC 目錄 前言 ....................................................................................................................... 2 1 概述 ................................................................................................................... 2 本設(shè)計研究的現(xiàn)狀 ......................................................................................... 2 本設(shè)計 研究的意義 ......................................................................................... 3 本設(shè)計主要工作內(nèi)容 ..................................................................................... 4 2 輸液監(jiān)控系統(tǒng)總體方案 .................................................................................... 5 系統(tǒng)需求分析 ................................................................................................. 5 系統(tǒng)方案論 證與比較 ..................................................................................... 5 控制方案比較 .............................................................................................. 5 點滴檢測方案 .............................................................................................. 6 剩余液體檢測方案 ...................................................................................... 6 速度控制方 案 ............................................................................................... 7 電機選擇及控制方案 ................................................................................... 7 主從機通信方案 ........................................................................................... 8 系統(tǒng)總體框圖 ................................................................................................10 小結(jié) ............................................................................................................... 11 3 系統(tǒng)從站的硬件設(shè)計 .......................................................................................12 從站系統(tǒng)框圖與核心部分電路圖 ..................................................................12 從站系統(tǒng)各單元設(shè)計 .....................................................................................13 點滴信號 檢測單元 ......................................................................................13 鍵盤及顯示單元 ..........................................................................................16 電源單元 ......................................................................................................18 聲光報警單元 ..............................................................................................19 通信電路硬件 設(shè)計及其工作原理 ..................................................................19 小結(jié) ................................................................................................................21 4 輸液監(jiān)控系統(tǒng)下位機軟件設(shè)計 .......................................................................22 下位機的軟件系統(tǒng)的總體設(shè)計 ......................................................................22 下位機系統(tǒng)各軟件模塊的設(shè)計 ......................................................................22 主模塊 ..........................................................................................................23 液滴計數(shù)模塊 ..............................................................................................23 查詢液滴有無及液滴過慢時的報警模塊程序設(shè)計 ....................................24 通信程序模塊程序設(shè)計 ..............................................................................25 5 輸液系統(tǒng)上位機軟件設(shè)計 ...............................................................................28 歡迎界面設(shè)計 .................................................................................................28 監(jiān)控 /報警界面設(shè)計 .......................................................................................29 PC 機通信接口模塊設(shè)計 ...............................................................................31 Msm 控件屬性及處理 .............................................................................31 通信協(xié)議 ......................................................................................................33 本機的通信模塊設(shè)計 ..................................................................................33 MSComm 控件屬性及應(yīng)用 ............................................................................34 小結(jié) ................................................................................................................36 6 結(jié)論 ...................................................................................................................38 致謝 ......................................................................................................................39 參考文獻 ..............................................................................................................40 附錄 A 外文文獻譯文 ..........................................................................................51 附錄 B 外文文獻原文 ..........................................................................................41 附錄 C 部分子程序 64 遼寧工程技術(shù)大學(xué)畢業(yè)設(shè)計（論文） 1 前言 靜脈輸液是我國目前臨床治療中最主要的一種輸液方式， 在實踐工