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ID:49199890
大小:643.00 KB
页数:10页
时间:2020-03-01
《lg0004 单片机构成的环境温湿度实时测控装置设计2.doc》由会员上传分享,免费在线阅读,更多相关内容在工程资料-天天文库。
1、温室是设施农业的重要部分。温室大棚测控系统是实现温室牛产管理自动化、科学化的基木保证。通过对监测数据的分析,结合作物生长规律,控制环境条件,从而使作物达到优质、高产、高效的H的。为了准确获取温室大棚的温湿度值,提出了基于单片机构成的环境温湿度实吋测控装置的设计。本文介绍了环境温湿度实吋测控装置的研制思路和方法,该装置可实现对环境温、湿度的实吋测量,并附有调温和调湿装置,能方便地应用于各种温、湿度控制场合。现场的温、湿度采集分别采用数字式温度传感器DS18B20和电容式湿度传感器HSllOlo从测试现场采集到的温度直
2、接送入单片机进行处理;湿度经AD0809转换为数字信号,并送入单片机进行数据处理。温湿度值经过数码管LED显示,并利用继电器控制相应的执行机构,以达到调节温湿度的FI的。木论文利用模块化的设计方法,且以较低的成木、较高的精度实现了现场温湿度的测试和控制,满足人们对温、湿度的不同需求,具有广阔的应用前景。关键词:温室大棚;单片机AT89C51;温湿度传感器;A/D转换;测控AbstractGreenhouseisanimportantcomponentofprotectedagriculture.Measuringa
3、ndcontrollingsystemisbasisofthemanagementautomationinthegreenhouse.Withthegrowthrulesanalyzingmeasurementdataandcontrollingcircumstancecondition,itmakesgreenhousebettercondition,andmoreproductiveandhighquality.Togainthereal-timetemperatureandhumidityvalueaccur
4、ately,thedesignoftheenvironmenttemperatureandhumidityreal-timeobservationinstallmentconstitutedofsingle-chipsisproposed・Thisarticleintroduceddesignideaandmethodoftheenvironmenttemperatureandhumidityreal-timeobservationinstallment,whichcanmeasureenvironmentalre
5、al-timetemperatureandhumiditywiththedeviceoftemperatureandhumidityadjustmentincluded.Theequipmentmayapplyinmanyoccasionsoftemperatureandhumiditycontrol.ThecollectionoftemperatureandhumiditydigitaltemperaturesensorDS18B20andelectriccapacitytypehumiditysensorHS1
6、101areused.Thetemperaturefromtestingsceneswillbesentdirectlytothesingle-chip.ThehumiditywillbetransformedtodigitalsignalbyAD0809,andthenbesenttosingle-chiptoprocess.ThetemperatureandhumidityvaluewillbedemonstratedthroughLEDandrelayswillbeusedtocontrolcorrespon
7、dingimplementingtoachievethegoaloftheadjustmenthumility.Thispaperusemodulationdesignmethodtorealizemeasuringandcontrollingofthereal-timetemperatureandhumilitywiththelowcost,thehighprecision,sowecansatisfypeopleddifferentdemandsoftemperatureandhumidity,soithast
8、hebroadapplicationprospect.Keyword:Greenhouse;SCMAT89C51;temperatureandhumilitysensor;A/Dtransformation;Observesandcontrols1引言错误!未定义书签。1.1课题背景及意义错误!未定义书签。1.2国内外发展现状错误!未定义书签。1.2.1国外
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