单片机在多路温度、湿度控制的研究与应用_学位论文.doc

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1、XX毕业设计(论文)XX学院毕业设计(论文)课题名称单片机在多路温度、湿度控制的研究与应用学生姓名学号系、专业指导教师职称年月日51XX毕业设计(论文)摘要随着社会的进步和工业技术的发展，人们越来越重视温湿度因素，许多产品对温湿度范围要求严格，而目前市场上普遍存在的温湿度检测仪器大都是单点测量，同时还有温湿度信息传递不及时、精度不够的缺点，不利于工业控制者根据温湿度变化及时做出决定。在这样的形式下，开发一种能够同时测量多点，并且实时性高、精度高，能够综合处理多点温湿度信息的测量系统就很有必要。本课题以MCS51单片机系统为核心，能对多点的温湿度进行实时巡检。各检测单元（从机）

2、能独立完成各自功能，同时能够根据主控机的指令对温湿度进行定时采集，测量结果不仅能在本地显示，而且可以利用单片机串行口，通过RS-485总线及通信协议将采集的数据传送到主控机，进行进一步的存档、处理。主控机负责控制指令的发送，控制各个从机进行温度采集，收集测量数据，并对测量结果（包括历史数据）进行整理、显示和存储。主控机与各从机之间能够相互联系、相互协调，从而达到系统整体统一、和谐的效果。关键词:单片机;RS485协议;温湿度测量51XX毕业设计(论文)AbstractAstheindustryandthesocietydeveloping,thehumiturebecomes

3、moreandmoreimportantandalotofproductsaresensitivetohumiture.However,humiture-measuringapparatusinthemarketnowonlycancheckandmeasurethehumitureofonepoint,atthesametime,thehumitureinformationisnotrealtimeandtheprecisionislow.Ittakesagreatoftroublesfortheindustry-controllerstomakedecision.Inth

4、issituation,designandimplementoneapplicablesystemwhichcanwatchmeasureandcontrolthehumitureandthemeasuringresultsisrealtimeandtheprecisionisgreatandmoreessential.Inordertomeetingthisapplication,thispapertalksaboutTheMultiple-Point’shumitureMeasuringSystem.Thissystembasedonsinglechipcomputer,

5、caninspectandcontrolmultiplehumituresinrealtime.TheSlavedMachinecancollecthumitureinformationonitsownanddisplayitontheLEDmodule.FollowingtheMasterMachine’scommand,theSlavedMachinecanup-sendthehumitureinformationtotheMasterMachinethroughtheRS-485businterfaceandthecommunicationprotocol.TheMas

6、terMachinesendscommands,controlstheSlavedComputergatheringandup-sendingthehumituredataincludinghistoryinformation,anditmanagesprocessesandstoresthehumitureinformation.TheMasterandSlavedComputerwillexchangeinformationandcorrespondtoeachother,soitworkstogetherperfectly.Keywords:singlechipcomp

7、uter;RS-485protocol;measure-humiture51XX毕业设计(论文)目录1概述·······························································································11.1系统整体目标··············································································11.2方案比较··········