基于单片机的环境温湿度测量仪设计摘要为了保障农作物合适的生长环境和天气、国防、科研、航天等，必须对特定的环境温度和湿度进行测量和管控。有时候人们的舒适度和情绪也和空气中的温度和湿度有关联，因此对室内环境温度和湿度进行测量是有必要的。本文设计了一种基于单片机的对室内环境温度和湿度测量的系统。微型计算机可以长期、稳定、实时的测量一些有特殊要求的环境温度和湿度。本系统主要是由硬件电路和软件程序两部分组成。使用传感器和测量电路，从室内外的环境中采集温度和湿度信号。经过微型计算机处理之后用LCD进行显示。若温度和湿度超过我们已经设定好的范围，就会自动报警。本设计以STC89C52为核心，DHT11实现信号的采集，能智能化、快捷化、方便的测量室内外环境的温度和湿度。整个系统的组成有：测量电路、显示电路、按键电路、报警电路等。该测量仪不仅结构简易、而且抗干扰能力较强。I关键词：温度；湿度；测量；单片机；LCD显示IIAbstractDesignofEnvironmenttemperatureandhumiditymeasuringinstrumentbasedonsingleChipInordertoensuresuitableenvironmentandweatherforcrops,nationaldefense,scientificresearch,spaceflightandsoon,specificenvironmentaltemperatureandhumiditymustbemeasuredandcontrolled.Sometimespeopleundefinedscomfortandmoodarealsoassociatedwithtemperatureandhumidityintheair,soitisnecessarytomeasureindoortemperatureandhumidity.Inthispaper,asingle-chip-basedtemperatureandhumiditymeasurementsystemforindoorenvironmentisdesigned.Microcomputerscanbeusedforlong-term,stable,real-timemeasurementsofenvironmentaltemperatureandhumiditywithspecialrequirements.Thissystemismainlycomposedofhardwarecircuitandsoftwareprogram.Temperatureandhumiditysignalsarecollectedfromindoorandoutdoorenvironmentsusingsensorsandmeasuringcircuits.Afterthemicrocomputerprocessing,displaywithLCD.Ifthetemperatureandhumidityexceedtherangewehaveset,thealarmwillbeautomatic.ThisdesignusesSTC89C52asthecoretorealizesignalacquisition,whichcanintelligently,quicklyandconvenientlymeasurethetemperatureandhumidityofindoorandoutdoorenvironment.Thewholesystemconsistsofmeasurementcircuit,displaycircuit,keycircuit,alarmcircuitandsoon.Themeasuringinstrumentisnotonlysimpleinstructure,butalsostronginanti-interferenceability.Keywords:temperature;humidity;Measurement;LCDdisplayIII目录摘要.......................................................................................................................IIAbstract...................................................................................................................................III第一章绪论...................................................................................................21.1设计背景及其意义...............................................................21.2国内外温湿度测量的研究状况........................31.3研究方案...............................................................................................41.4本文的主要的研究内容及论文结构安排...........................................................................................................................................5第二章总体方案设计...................................................................72.1概述...............................................................................................................72.2方案选择与论证.......................................................................72.2.1单片机的选择与论证............................................72.2.2显示模块的选择与论证.................................
