|
中zhong國guo幅fu員yuan遼liao闊kuo,但dan人ren均jun占zhan有you耕geng地di麵mian積ji少shao。對dui於yu合he理li利li用yong土tu地di資zi源yuan,提ti高gao農nong業ye勞lao動dong生sheng產chan率lv,推tui進jin城cheng市shi化hua和he中zhong國guo農nong業ye的de現xian代dai化hua,工gong廠chang型xing農nong業ye設she施shi已yi經jing從cong實shi驗yan階jie段duan走zou向xiang了le實shi際ji應ying用yong。通tong過guo計ji算suan機ji控kong製zhi係xi統tong,我wo們men可ke以yi人ren為wei控kong製zhi作zuo物wu生sheng長chang的de環huan境jing條tiao件jian,使shi作zuo物wu生sheng長chang不bu受shou自zi然ran氣qi候hou的de影ying響xiang,做zuo到dao常chang年nian工gong廠chang化hua生sheng產chan,並bing進jin行xing高gao效xiao率lv、高產值和高效益的生產。新疆地區日照時間長、土地麵積廣,非常適應發展工廠化農業。這裏介紹新疆某地使用世紀星組態軟件建立的溫室控製係統。 duiwenshihuanjingdekongzhishigongchanghuashengchannongchanpindehexinneirong,genjujutizuowupinzhongdelixiangshengchangmoxinglaikongzhiwenshihuanjing,shiwenshihuanjingzaidadaohuojiejinnongzuowushengchangxuyaodehuanjinghejieyuenengyuanzhijiandadaopingheng。kongzhixitongdeshiyongxingguanxidaowenshichanliang、病蟲害發生、管理風險和能耗成本等。 溫室的智能化控製係統由安裝有世紀星軟件的中心監控計算機及現場控製機、PLC、係列傳感器、執行機構、栽培環境四季工況、局部數字通訊組成。 xianchangkongzhijisuanjilianjiegaiwenshidechuanganqijikongzhiqideng,bingtongguowangluobashujuchuandaozhongxinjiankongjisuanjishang。youyujishuzhongxinyuanliwenshixianchang,erjishurenyuanxuyaoshishijiankongshengchancanshu,bingxiugaizuijiadeshengchancanshu,zhelishiyongshijixingzutairuanjiandeWEB功gong能neng,技ji術shu人ren員yuan通tong過guo瀏liu覽lan器qi遠yuan程cheng登deng錄lu到dao世shi紀ji星xing中zhong心xin服fu務wu器qi,可ke以yi查zha看kan所suo有you溫wen室shi環huan境jing的de實shi時shi數shu據ju,並bing能neng更geng具ju權quan限xian修xiu改gai生sheng產chan參can數shu。如ru硬ying件jian係xi統tong圖tu。
 硬件係統圖
係統主要對溫度、濕度和光照等指標進行控製。以葡萄溫室為例,休眠期溫室的溫度保持在5℃,休眠期後白天控製在25~30℃ , 夜間溫度控製在15~18℃。當溫度低於控製範圍時,加熱爐的風機啟動,使其熱風在溫室內均勻散布來增溫;當溫室內溫度達到作物適合溫度時,加熱爐風機自動停止。濕度控製在50%~75%,當溫室內濕度超出控製範圍時軸流風機啟動,抽出溫室內濕度較高的空氣,使濕度下降;當濕度降回到正常範圍時,軸流風機自動停止工作。溫室的光照度控製在(45~55)×103lx,當溫室內的光照度達不到設定指標時,溫室內的補光燈自動打開進行人工補光;當dang溫wen室shi的de光guang照zhao度du水shui平ping達da到dao設she定ding指zhi標biao時shi,補bu光guang燈deng自zi動dong熄xi滅mie,以yi節jie約yue能neng源yuan。臭chou氧yang病bing害hai防fang治zhi機ji的de使shi用yong應ying結jie合he作zuo物wu的de具ju體ti情qing況kuang來lai選xuan擇ze性xing的de進jin行xing定ding期qi或huo不bu定ding期qi消xiao毒du滅mie菌jun。二er氧yang化hua碳tan發fa生sheng器qi的de操cao作zuo相xiang對dui麻ma煩fan一yi些xie,需xu到dao溫wen室shi內nei按an步bu驟zhou操cao作zuo,監jian控kong係xi統tong可ke監jian視shi二er氧yang化hua碳tan濃nong度du,當dang濃nong度du達da到dao有you害hai程cheng度du時shi係xi統tong發fa出chu報bao警jing,提ti醒xing監jian視shi人ren員yuan注zhu意yi。其qi他ta溫wen室shi的de控kong製zhi方fang案an與yu之zhi類lei似si,主zhu要yao差cha別bie在zai於yu各ge參can數shu的de控kong製zhi指zhi標biao不bu同tong。 溫室環境的內容非常廣泛,但通常所說的溫室環境主要指空氣與土壤的溫濕度、光照及CO2 nongdudeng。shijixingzutairuanjiantongguogezhongchuanganqijieshougeleihuanjingyinsuxinxi,tongguoluojiyunsuanhepanduankongzhixiangyingwenshishebeiyunzuoyitiaojiewenshihuanjing,jilulishishujubinghuizhichuhuanjingquxiangongshengchanguanlirenyuanduishengchanqingkuangfenxi。
1 肥水灌溉控製 采用計算機肥水灌溉運籌係統,可以根據作物區的需要,對水培區的營養液成分、pH 值和EC值進行綜合調控;對於基培和土培區,主要是根據作物生產需要設定基質、土壤的水勢值,自動調節滴灌、噴灌係統的灌溉時間和次數。
2 綜合環境控製 duishineiwaidegezhonghuanjingcanliangjinxingzhinenghuashujufenxihechuli,bingjiehezhuanjiazhishikuhejuecezhichixitongdengxianjindejishushouduan,duigezhonghuanjingtiaokongzhixingjigoujinxingzhinengmohukongzhi。caiyongjisuanjishixianhuanjingcanshubijiaofenxi,anbilitiaojiehuanjingwendu、濕度與通風。CO2 發生裝置按需比例調節環境CO2 nongdu。xiajishiwaiwudingpenlin,zaibaozhengshineiguangzhaoqiangdudeqiantixia,zuhetiaojiehuanjingwenduyutongfeng,dadaoqiangzhijiangdihuanjingwendudexiaoguo。tongguojisuanjiduiwenshigediandongzhixingqijinxingzhengtitiaojie,zidongtiaokongdaozuowushengchangsuoxuqiudewen、濕、光、水和氣等條件。另外,通過臭氧消毒淨化器對溫室進行消毒。
3 生產參數設定 對dui於yu不bu同tong的de農nong作zuo物wu及ji同tong種zhong農nong作zuo物wu在zai不bu同tong的de生sheng長chang期qi需xu要yao不bu同tong的de環huan境jing條tiao件jian,利li用yong世shi紀ji星xing組zu態tai軟ruan件jian的de配pei方fang功gong能neng實shi現xian了le參can數shu的de批pi量liang控kong製zhi。根gen據ju不bu同tong的de作zuo物wu或huo相xiang同tong作zuo物wu的de不bu同tong生sheng長chang階jie段duan,設she計ji出chu不bu同tong的de配pei方fang。世shi紀ji星xing軟ruan件jian提ti供gong了le簡jian單dan、方便的組態和操作功能,可將需要修改的參數定義為變量,以便操作人員可以通過操作畫麵進行方便修改。
4 報警狀態 使(shi)用(yong)世(shi)紀(ji)星(xing)組(zu)態(tai)軟(ruan)件(jian)的(de)報(bao)警(jing)係(xi)統(tong),實(shi)時(shi)監(jian)測(ce)環(huan)境(jing)參(can)數(shu),當(dang)環(huan)境(jing)數(shu)據(ju)超(chao)過(guo)設(she)定(ding)值(zhi)時(shi),係(xi)統(tong)出(chu)現(xian)報(bao)警(jing)提(ti)示(shi)。係(xi)統(tong)支(zhi)持(chi)根(gen)據(ju)農(nong)作(zuo)物(wu)不(bu)同(tong)或(huo)生(sheng)長(chang)階(jie)段(duan)不(bu)同(tong),實(shi)時(shi)設(she)定(ding)報(bao)警(jing)界(jie)限(xian)值(zhi)。報(bao)警(jing)保(bao)護(hu)係(xi)統(tong)提(ti)高(gao)了(le)整(zheng)個(ge)係(xi)統(tong)安(an)全(quan)性(xing)。
5 信息傳遞 現(xian)場(chang)計(ji)算(suan)機(ji)除(chu)監(jian)控(kong)本(ben)站(zhan)實(shi)時(shi)環(huan)境(jing)情(qing)況(kuang)外(wai),還(hai)將(jiang)實(shi)時(shi)數(shu)據(ju)通(tong)過(guo)局(ju)域(yu)網(wang)傳(chuan)遞(di)給(gei)中(zhong)心(xin)監(jian)控(kong)計(ji)算(suan)機(ji),中(zhong)心(xin)監(jian)控(kong)計(ji)算(suan)機(ji)記(ji)錄(lu)生(sheng)產(chan)數(shu)據(ju)及(ji)報(bao)警(jing)曆(li)史(shi)記(ji)錄(lu),並(bing)通(tong)過(guo)WEB發布功能使遠在外地的農業專家查看生產數據指導生產,並可通過權限設置實現遠程修改生產參數的功能。
gongchanghuanongyenenggouzairengongchuangzaodehuanjingzhongjinxingquanguochengdelianxuzuoye,congerbaituoziranjiedezhiyue。liyongshijixingzutairuanjianshixiangongchangnongyedekongzhi,tebieshizaihuabeihedongbeiwenshizhongzhijiaoduodediqu,shixindesiluhelinian,juyouguangkuodefazhanqianjing。wenshikongzhijishuyanzheshoudong、自動和智能化控製的進程,正向著越來越先進、功能越來越完備的方向發展;而溫室環境控製正朝著基於作物生長模型、溫室綜合環境因子分析模型和農業專家係統的溫室信息自動采集及智能控製趨勢發展。■
|