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1、四川理工學(xué)院畢業(yè)設(shè)計(jì)四川理工學(xué)院畢業(yè)設(shè)計(jì)智能節(jié)水灌溉系統(tǒng)設(shè)計(jì)1四川理工學(xué)院畢業(yè)設(shè)計(jì)智能節(jié)水灌溉系統(tǒng)設(shè)計(jì)摘要:自動(dòng)控制節(jié)水灌溉技術(shù)的高低代表著農(nóng)業(yè)現(xiàn)代化的發(fā)展?fàn)顩r,灌溉系統(tǒng)自動(dòng)化水平較低是制約我國(guó)高效農(nóng)業(yè)發(fā)展的主要原因。本文就此問題研究了單片機(jī)控制的節(jié)水灌溉系統(tǒng),該系統(tǒng)可對(duì)不同土壤的濕度進(jìn)行監(jiān)控,并按照作物對(duì)土壤濕度的要求進(jìn)行適時(shí)、適量灌水,其核心是單片機(jī)構(gòu)成的控制部分,主要對(duì)土壤濕度與灌水量之間的關(guān)系、灌溉控制技術(shù)及各系統(tǒng)的硬件設(shè)計(jì)、軟件編程等各個(gè)部分進(jìn)行了深入的研究。該系統(tǒng)以AT89C51單片機(jī)為核心控制部分,其次主要由土壤濕度
2、傳感器,信號(hào)處理電路,顯示電路,輸出控制電路,故障報(bào)警電路等組成。本設(shè)計(jì)用protues軟件繪制了系統(tǒng)原理圖,并用匯編語言進(jìn)行了軟件部分的編寫。還對(duì)幾個(gè)主要電路進(jìn)行了仿真。用CAD2010軟件繪制了曲線圖,用WPS表格工具繪制了表格。系統(tǒng)主要具有以下功能:土壤傳感器檢測(cè)土壤濕度并發(fā)送到單片機(jī)。單片機(jī)將土壤濕度傳感器檢測(cè)到的土壤濕度模擬量轉(zhuǎn)換成數(shù)字量之后顯示到LED顯示器上并進(jìn)行計(jì)算。若需灌水,則單片機(jī)系統(tǒng)啟動(dòng)鳴音報(bào)警,發(fā)出灌水信號(hào),并經(jīng)放大驅(qū)動(dòng)設(shè)備,開啟電磁閥進(jìn)行倒計(jì)時(shí)定時(shí)灌水,若不需灌水,系統(tǒng)不進(jìn)行灌水。本系統(tǒng)可實(shí)現(xiàn)單路數(shù)據(jù)采集
3、處理功能,如稍加改變,便可實(shí)現(xiàn)對(duì)多因子和多輸入數(shù)據(jù)的采集處理功能。該系統(tǒng)靈活性強(qiáng),易于操作,可靠性高,將會(huì)有更廣闊的開發(fā)前景。關(guān)鍵詞:滴灌,節(jié)水灌溉,單片機(jī)控制,自動(dòng)化III四川理工學(xué)院畢業(yè)設(shè)計(jì)IntelligentirrigationsystemdesignAbstract:Automaticcontrolofwater-savingirrigationtechnologyrepresentsthedevelopmentofagriculturalmodernization,andirrigationsystemstothelo
4、wlevelofautomationisthemaincauseofrestrictingourhighefficiencyagriculturaldevelopment.Thispaperstudyontheissuewithsingle-chipmicrocomputercontrolofdripirrigationwatersavingirrigationsystem,thesystemcanbeofdifferentsoilhumiditymonitor,andtimelyinaccordancewiththerequir
5、ementsofthecropsonsoilmoisture,adequatewater,itscoreisasingle-chipmicrocomputercontrolpart,consistingofmainlytherelationshipbetweensoilmoistureandirrigationwater,irrigationcontroltechnologyandsetupthesystemofhardware,software,programmingeachpartcarriedonthethoroughres
6、earch.ThissystemuseAT89C51microcontrollerasthecorecontrolsection,secondlyismainlycomposedofsoilmoisturesensors,signalprocessingcircuit,displaycircuit,outputcontrolcircuit,faultalarmcircuit,etc.III四川理工學(xué)院畢業(yè)設(shè)計(jì)ThisdesignusingtheProtuessoftwarerenderingthesystemschematicdi
7、agram,usingassemblylanguagetowritethesoftwarepart.Alsoonthemaincircuitsimulation.UsetheCAD20110softwaretodrawthegraph,usetheWPSformtoolcreatetheform.Systemhasthefollowingmainfunctions:thesoilsensordetectionofsoilmoistureandsenttoMCU.SCMwillsoilmoisturesensorsdetectthe
8、amountofsoilmoisturesimulationafterconversiontodigitalquantityaccordingtotheLEDdisplayandtocalculate.Ifneedtoinfusewater,the