资源描述:
《基于单片机的温室大棚CO2浓度测控系统的设计》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、基于单片机的温室大棚C02浓度测控系统的设计温室是设施农业的重要组成部分,温室大棚测控系统是实现温室生产管理自动化、科学化的基本保证。通过对监测数据的分析,结合作物生长规律,控制环境条件,使作物在不适宜生长的反季节中,可获得比室外生长更优的环境条件,从而使作物达到优质、高产、高效的栽培目的。本系统利用计算机自动控制技术,将检测与控制过程完全自动化,实现温室内二氧化碳浓度的自动调控。系统的总体布置有四个组成部分,BP:数据釆集部分、信号处理部分、控制和执行部分、串口通讯部分。本系统可以实时检测并显示温室内二氧化碳浓度,根据作物适宜浓度发出执行输出,以便为作物提供一个良好的环境。系统主要具有如下
2、功能:对当前的环境因子测量并记录,采用了4位LED显示数码管,能实吋显示当前测量值;当采集到的当前值高于上限值或低于下限值时,能够实现超限报警,其中长鸣声代表超低限报警,短鸣声代表超高限报警,与此同时相应的报警指示灯亮;当测量值低于或高于适宜值时,输出开关量控制;提供人机对话界面,采用一根串口线与电脑串口相连进行通讯,可以在电脑上显示当前的采集值,并可随时修改数据,设置高、低阀值。关健词:温室;环境控制;C02浓度;串口通讯DesignOfTheCO2ConcentrationMeasureAndControlSystemInGreenhouseBasedOnMCUABSTRACTGreen
3、houseisanimportantcomponentofprotectedagriculture・Measuringandcontrollingsystemisthebasisofthemanagementautomationinthegreenhouse.Withthegrowthrulesanalyzingmeasurementdataandcontrollingcircumstancecondition,itmakesgreenhousebetterconditionthanoutdoorintheunfitseason,andmoreproductiveandhighquality
4、.Environmentalmonitoringofthegreenhouse,namelycontroltheenvironmentconditionwhichinfluencecropgrowth,suchassuitabletemperature,humidity,illuminance,C02densitywatercontentofsoil,etc.Accordingtothebiologicalcharacteristicofthecrop.Mostgreenhousesofourcountryproduceandcarryontheproductionprocesstomana
5、geaccordingtoexperienceatpresent.Thetechnologicalmeanslagsbehind,laborintensityisgreat,productionefficiencyisnothigh,Andexistingcomputercontrolsystemismostlytointroduceforeigntechnology,Withhighcosts,andisnotfitforthedomesticenvironment.Inthispaper,thesystemthatoriginallystudiesutilizesautomaticcon
6、troltechnologyofthecomputer,observingandcontrolthecoursewilltotallybeautomatic.Realizethatthedensityofcarbondioxideisadjustedandcontrolautomaticallyinthegreenhouse.Systematictotalityfixesupandhatefourpartstomakeup,namely:Gathersignalpart,anddealwithpart,controlandcarryingoutpart,bunchesofcommunicat
7、ionpartindata.Thesoftwareincludes:thereal-timeControlmodule,thedataprocessingmodule,theintellectualcontrolmodule,theparameter-establishmodule,andthecommunicationmodule,etc.Throughresearch,thedensityofcarbon