基于51单片机的医院输液系统毕业设计

SHANDONGＵＮＩＶＥＲＳＩＴＹＯＦＴＥＣＨＮＯＬＯＧＹ毕业设计说明书医院输液监控系统设计学院：电气与电子工程学院专业：电子信息工程学生姓名：陈祥惠学号：0911094044指导教师：窦震海2013年6月摘要I摘要该论文是一种基于AT89C51控制的医疗点滴输液控制系统的设计方法。该系统操作简洁、上手快、方便、集中控制并且具有报警功能，在医院医疗卫生方面有很大的实用价值，从而加速了医疗器械的自动化与半自动化进程,有助于提高现代医护质量。本设计主要成果有：⑴实现了相应的电路采集液滴速度，与设置的液滴速度比较，显示液滴滴速、剩余输液时间；对输液速度可以自动控制；具备与上位机通讯的能力，将输液过程的信息输入护士值班室；当输液剩余时间达到一定的时间，自动报警，或者输液中出现情况可通过相应装置报警。填补了医院输液系统在细节部分研究的空白，对整体结构的完整分析和其电子设计的建立具有重要意义；⑵通过理论分析，论证了输液系统各个部分的原理及具体设计，很好地解释了所有关于医院输液系统设计的基本内容。(3)该系统可让医护人员在控制室(主站)改变不同受液者(从站)的输液状况,也可以直接到输液室直接改变输液状态(直接控制从站),了解病人的输液进程,及时通知处理将快完成的输液。以上研究成果为该系统设计和控制液滴装置设计过程提供了丰富的信息。关键词：51单片机，医院输液系统，输液监控,步进电机ABSTRACTIIABSTRACTThispaperdealswithacontrolsystemforliquid-droppingbasedon51singlechipmicrocomputer.Forusingconveniently，displayingdirectly,controllingintensively,alarmingbysendingoutsound.Thissystemcanbewidelyusedinthehospitals.Toacceleratetheprocessofautomaticorhalf-automaticrealizingforthemedicine-appliance.Themainresearchresults:(1)Itrealizesthemeasurementcircuitcollectionliquidcorrespondingdropletvelocity,whichcomparedwiththedropletvelocitysettings,displaythedroprate,residualinfusiontime;Cancontrolthetransfusionspeedautomatically;Abilitytocommunicatewithhostcomputer;Putthetransfusionprocessinformationintonurse'sdutyroom;Whentheinfusiontimeremainingtoacertaintime,automaticalarming,orifsomethingishappened,itisalsocanalarmthroughthecorrespondingdevice.thisisfillthegapsinthehospitaltransfusionsystemindetailresearch,andhavegreatsignificancetoestablishacompleteanalysisoftheoverallstructure.(2)Throughtheoreticalanalysis,demonstratedtheprincipleofeachpartofthetransfusionsystemandthespecificdesign,agoodexplanationofthebasiccontentofalldesignhospitalinfusionsystem.(3)Thesystemcanletthemedicalstaffinthecontrolroom(station)tochangeunderdifferentfluidinfusion(slave),canalsogodirectlytothetransfusionroomdirectlychangetheinfusionstate(fromthestationdirectlycontrol),tounderstandtheprocessofthetransfusionpatients,promptlynotifytheprocessingwillbedonesooninfusion.Theaboveresultsproviderichinformationfordesignandcontrolofdropletdeviceprocessofthesystem.Keywords:The51singlechipmicrocomputer,Hospitalinfusionsystem,infusionmonitoring,steppermotor目录III目录摘要............................................................................................................................IABSTRACT..................................................................................................................II目录.............................................................................................................................III第一章引言.............................................................................................................1课题的背景和意义...................................................................................................................11.1.1医疗输液监控系统设计的背景..............................................................................11.1.2医疗输液监控系统设计的意义..............................................................................11.1.3系统设计需要解决的关键问题.............................................................................2第二章系统方案设计与论证.....................................................................................32.1系统硬件结构总体设计方案..........................................................................................32.2点滴速度测量电路方案的选择及论证..........................................................................32.3液面检测电路方案的选择及论证..................................................................................42.4通过电机控制滴速电路的方案论证................................................................................52.4.1电机控制滴速的方案设计......................................................................................52.4.2控制用电动机及驱动的选择与比较...................................................................62.5显示器接口电路方案选择论证......................................................................................72.6键盘接口电路方案选择论证..........................................................................................72.6.1独立式按键电路......................................................................................................72.6.2矩阵式键盘电路......................................................................................................72.7单片机型号的选择与论证..............................................................................................82.7.1现有主流单片机的概述.........................................................................................82.7.2单片机的选用.........................................................................................................82.7.3单片机I/O口管脚分配.......................................................................................12第三章输液系统各模块的硬件设计.......................................................................133.1控制电机模块设计.........................................................................................................143.1.1步进电动机的工作原理.......................................................................................143.1.2步进电机控制原理...............................................