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KHOA HOC UNG DUNG TRIEN KHAI TRONG NAM TRONG NHA Sir DUNG CONG NGHE MANG CAM BIEN KHONG DAY • TSKH LE DINH THAN (*) • KS HO TAN DAT(**) TOM T A T Bdi bdo ndy mo td viec triin khai md hinh ung dung con[.]
KHOA HOC - UNG DUNG TRIEN KHAI TRONG NAM TRONG NHA Sir DUNG CONG NGHE MANG CAM BIEN KHONG DAY • TSKH LE DINH THAN (*) • KS HO TAN DAT(**) TOM T A T Bdi bdo ndy mo td viec triin khai md hinh ung dung cong nghe mgng cdm bien khong ddy ldm h thing gidm sdt moi tru&ng n-ong tring ndm nhd, cu thi vai Linh chi vd Bdo ngu H$ thdng ba gdm cdc nut cdm biin, nut qudn ly nhd tring, trung tdm dieu hdnh vai phdn cirng vdphdn mem dufic thiit ki nhdm theo doi lien tuc vd tuc th&i cdc diiu kien moi truang nhd trdng vd co gdng tri dik kien mdi tru&ng sing tit nhdt co thi cho nhd tring thdng qua viec diiu khiin cdc thiit bf dinh sdn, H thing dd dugc triin khai thu nghiem tgi Tru&ng Dgi hgc Kinh ti Cong nghigp Long An bu&c ddu de lgi kit qud khd quan Tit khda: Mgng cdm biin khdng ddy, he thdng gidm sdt nhd trdng ndm SUMMARY This paper describes the deployment ofenvironment monitoring system WSN technology applicatio paradigm for growing indoor mushrooms, specifically with Ganoderma and Pleurotus mushrooms T deployed system consists of sensor nodes, management nodes, and the server with software and hardwa designed for monitoring and managing environmental conditions of the growing house continuous and immediately and try to maintain the best possible living environmental condition through contro available installed devices The system has been deployed and experimented at Long An University Economics and Industry with thefirstpromising results Key words: Wireless sensor network (WSN), mushroom growing house monitoring system Gidi thieu Trong thdi gian qua, ttdng nim nha, ddc bidt la nam Linh chi, Bao ngu dang dupe quan tdm Cd nhidu md hinh trdng nim dupe dd xuit vd ung dung nhu md hinh trdng nim bdo ngu d Ba Tri va Chdu Thdnh, Bdn Tre [7][8], md hinh ttdng nim d Sa Dec, Ddng Thdp [9] dem lai gid tti kinh td cao, gdp phin tdng thu nhdp, gidi quydt vipc ldm dn dinh eho ba ndng ddn tai khu vuc Ddng bing sdng Cftu Long ndi ridng vd cd nude ndi ehung Trong san xuit ndng nghidp, cung vdi P l ydu eau nghiem ngdt vd phdi, giong, dinh dudng, ydu td mdi trudng sdng eiing giii ttd then ehdt Nhumg hien d nude ta si xudt ndng nghidp ndi chung vd vipc ttdng vm ndi ridng phin ldm theo quy md gia dinh hay ttang trai nhd vide theo doi vd chsl sdc da phan van eon theo kinh ngbifm cd nhSn, mmmmmmm KHOA HOC - ilNC DUNG theo cdm tmh ndn vdn tidm in rfti ro Ndng suit nhin ehung cdn chua cao, ehdt lupng sdn phdm khong ddng deu, ddn ddn kha nang canh teanh ban che va thidu bdn vftng Do dd, mpt cdng nghp mdi tti mdi hrudng dn djnh, hpp ly dd cdi thipn lien tvic ndng suit, ndng cao hipu qua san xuat, chat lupng sdn pham, ddm bdo svr viing manh eho hd thdng ndng nghidp ndi chung va teong ttdng nam ndi ridng Id mpt ydu cau hdt sftc cap bach vd cdn thidt, phft hpp vdi djnh hudng phdt tridn hien Bdi bdo md ta md hinh ftng dvmg cdng nghd mang cam bidn khdng day dd tedng nam ttong nha (thft nghidm Bdo ngu) Kdt qua ban dau cho thdy vide dp dvmg cdng nghd dd giup tvr dpng hda cdng vide theo doi vd chdm sdc, ddng thdi ddm bao chdt luang va svr ddng ddu teong san phim thu hoach Bd ciic cua bdi bdo nhu sau: Phin tdm tat mdt sd md hinh ttdng nim Linh chi, Bdo ngu tai Viet Nam; Phdn dd xuit va gidi thipu md hinh tedng nam sft dung mang cdm bidn khdng day; Phin md td kdt qud tridn khai thft nghidm md hinh tai Trudng Dai hpe Kinh td Cdng nghidp Long An; Phdn ket ludn M$t so md hinh vd ydu cau tr6ng nim Linh chi, Bdo ngu- t^i Vi^t Nam Viec ttdng nim d cae nude Ddng Nam A npi ehung vd Viet Nam ndi rieng cdn mang ndng tinh thft cdng Id thude nhidu vao thdi tidt, ndn ti Id rui ro cao [2] Vide td ehfte ttdng nam dupe thuc hien chu ydu nhu sau: Trong ndm kit hgp vai tdn cdy ngodi trai dan den Id thude nhidu vdo didu kien tu nhidn (nang, mua, gid lanh, ), sdn lupng nam that thudng vd Id thudc vdo mua vu [2, tt 31 - 32] Trong ndm nhd khdng ehe tdt han cdc didu kidn bit lpi cfta mdi trudng, chft ddng dupe im dp, nhiet dp, dnh sdng, d quy md ldm cd thd CO gidi hda, tvr ddng hda, giam nhftng lao dpng khdng cin thidt ddng thdi tang ndng suat nam tedng [2, te 32 - 33] Mdt sd ky thuat theo doi vd chdm sdc nam dupe biet hien tai Viet Nam nhu sau: Hinh - Minh h^a vif c nam Linh Ghi ohk ã'ãf|fi&.ôf TAP CHI KINH TE - CONG NGHIEP KHOA HOC - ilNC DUNG - Thep ddi vd cham sdc bdng tay Qud trinh gidm sat dac thdng sd mdi teudng thirc hipn ngdu nhidn, kinh nghiem va sft dvmg mdtsdthidtbidonhiptdp,ddim thdng thudng, quateinhhrdi, phun suang, chieu sang cung dupe didu khidn bdng tay Cdch lam ndy dan gidn va thdng thudng nhit it tdn chi phi dudng dng, qua trinh tudi phun cd the dung binh xit bode keo dng phun Do tidn hanh bdng tay ndn tdn nhidu edng sftc, ttong cd nhidu ban chd, nhit Id khd giam sat hieu qua nhiet do, dd im, anh sang, pH nude, dp am co chit khd thirc hien trdn quy md Idn va ldng phi tdi nguydn sdn xudt cfta thdi tidt Vide lap Ijch theo thdi gian ciing khdng linh boat vdi sir thay ddi cua didu kifn mdi trudng Thdng sd mdi trudng djc bi$t la nhi$t dg, dd im, anh sdng rit quan ttpng vd dnh hudng rit Idn ddn ndng suit cua vide ttdng nim Tuy thupc vao tftng loai nim va giai dojin sinh trudng ma mdi ttudng yeu edu la khac nhau, dd cin cd gidi phdp bien dam bdo m6i trudng nhidu tmh hudng Sau ddy ta khao sat mpt sd ydu ciu mdi teudng ttong ttdng nim sd (Bdo ngu), Linh chi 2.1 Mpt sd ydu ciu teong tedng ndm So (Bdo ngu) Hinh - Tudi phun bdng binh xit vd thong so moi trirdng bdng tay Theo kdt qud nghidn cftu vd thvtc nghiSm [4][1], cac didu kien thich hpp ddttdngnSm Bdo ngu nhu sau: • Nhipt dp thich hop: 25-32°C, nhipt dp tji uu 27-28°C • Dpim:dpamritquanttpngddivdisirphal ttidn to vd qud thd cfta nim Trong giai iiV tdng tradng to, dp im nguyen lieu yeu cduli Cdc cdch thftc ndi teen khd theo ddi Hdn tuc 50 - 60%, cdn dp dm khdng khdng dir?c qud trinh sinh ttudng vd phdt tridn cfta nim, nhd hom 70% C) giai doan tudi ddn nam qua khd didu chinh kjp thdi cd su- bidn ddng thd, dp im khdng kbi tdt nhit la 70 - 95% - Theo ddi bang tay vd chdm sdc tu ddng theo Ijch thdi gian djnh trudc Vide giam sat thdng sd mdi trudng eung thvtc hien bing tay nhung hp thdng tudi dupe xdy dvmg cdc bee tudi, phun cd dinh va bd djnh gid thuc bien kich boat he thong phun suang theo Ijch trinh djnh trade ttong bd djnh thdi gian AP CHI KINH TE - CONG NGI KHOA HOC - UNG DUNG dp dm khdng 50%, nim ngftng phat ttidn va chdt, ndu nam d d^ng phdu lech vd dang la thi se bj kho mat vd chay vdng bia mil nim Nhung ndu dp dm cao ttdn 95%, tai nim dd bj nhijn va ru xudng [1, te 148] teinh nudi spi vd qud the linh chi can dp thdng thoang tdt, kin gid •• Anh sdng: giai doan nudi spi khdng can dnh sang, giai doan qud the can dnh sang tan xa (dpc sach dupe) Cudng dp anh sang can ddi • Dd im khdng khi: >70% tu mpi phia • Dp pH: Nim bdp ngu cd khd ndng chju •• Dp pH: thich nghi mdi trudng tnmg tinh dvmg svr dao ddng pH tuong ddi tdt Tuy nhidn ddn axit ydu pH = 5,5 - pH thich hpp ddi vdi hiu hdt cac loai nim bao Nhu vdy, thdng sd mdi tradng (nhi$t dd, d$ ngu ttong khoang - [1, tt 148] am khdng khi, pH, anh sang, dp im co chit) •• Anh sdng: Anh sang chi cin thidt cho giai dnh hudng rat Idn ddn chit lupng va ndng suit doan tao nu nam Anh sang tdt nhit Id khoang cfta nam Do vide theo ddi, didu khidn lien 200 - 300 lux [5, tt 148] hie thdng sd mdi tradng la rat can thidt, mang • Dp thdng gid: Nim cin ed oxy dd phat ttidn, cam bidn khdng ddy hoan todn ed the dap ftng vi vay nha ttdng cin ed dp thdng thoang vfta dupe va cho phep luu tru lai cdc thdng sd mdi phdi, nhung phai ttdnh gid Ifta true tidp tradng ttong sudt qud trinh trdng giftp danh Bang yeu to dnh hudng sinh trudng nam bao ngir Yfiuto Nhiet dd Do am cc chat Bo am khdng pH Anh sang Giai doan uto 20 - 30°C / 27 - T 50 - 60% Khong nho hon 70% 5-7 Khong can Giai doan raqua (h§ 15-25''C/ 25 - 32''C 50-60% 70 - 90% 5-7 200- 300 lux Thong thoang Thong thoang vua phai tranh gjo hia true tidp 2.2 Mdt sd ydu eauttongtedngnam Linh chi gia, khai thdc, chpn thdng sd thich hpp theo Theo [6], ndng suit vd chit lupng nam Linh tftng vftng thdi tidt khac chi chju dnh hudng bdi nhipt do, dm dp nhd Md hinh ftng dung cdng nghd mang cam tedng, anh sdng vd dp thodng day la mdt bien khdng ddy trong nim nha sd didu kidn mdi tradng cdn thidt trdng 3.1 Gidi thidu mang cdm bidn khdng day Linh chi Mang cdm bidn khdng day (Wireless Sensor • Nhiet dp thich hop: giai doan nudi spi la Networks, gpi tdt la WSNs) Id mdt mang bao 20 - 30°C, giai doan qua thd la 22 - 28°C gdm nhidu nftt cam bidn (sensor nodes) cd • Dp dm; dp dm ca chdt 60-62%, dp dm khdng khd nang cdm bien mdi tradng nhu nhiet dp, 80 - 95%, dp thdng thpang: ttpng sudt qud dp am, cudng dp dnh sang, v v va cd khd KHOA HOC - U NG DUNG ndng giao tidp khdng day vdi cac nftt cdn lai tao thdnh mdt mang cdm bidn nhdm giam sdt, theo doi mdt vung vdt ly ndo Thdng tin thu dupe tft mpt nut cdm bidn se dupe truydn vd mdt team trung tdm (base station hay gateway) thdng qua cac nftt cam bien khac va cudi cimg thdng qua Internet tmyen vd trung tam dft li^n de luu ttH, phan tich vd xft ly [3] Hinh la minh hpa mdt mang cam bidn khdng ddy Hinh M^ng cdm bien Idiong ddy Phan tich Lirutrft Khai thac Xu D Internet Khu vye cam bidn Khu vvrc cam bidn (dang don chang) (dang da chang) Tram co sd Nut tong hpp \ Nut cam bidn KHOA HOC - U'NG DUNG Trong do, thong thuang moi niit cam biln se co nhiing phdn nhu hinh Hinh C^u true niit cdm bien - qudn ly nhd tr6ng 11 —J^Bo chip hanh^B^ Bo xit ly Cam bidn Cam bidn — Bp nguon Bp truyen nlian iiiifi ADC ^ ^ JHH^ML _| Anten r ^^^^B ADC = Analog to Digital Converter (Bp chuydn ddi tin hieu tuin tut sang so) 3.2.Md hitih mang cam bidn khdng day ttdng nim ngudi dung cd the thvrc bidn cac xft ly thich hpp (ed thd ydu cau md may phun suang, md may bom tudi ndn, ) He thdng cdn cd thd 3.2.1 Md hinb tdng thd he thdng Hinh la md hinb tdng thd cfta he thdng, cung cap cho ngudi dftng khd nang gidm sat tai mdi nhd trdng, cdc nftt cam bidn dupe nhd trdng va didu khien tft xa qua internet vd bd tti nham dac vd thep ddi cac thdng sd SMS trdn may tinh bat ky hoac didn thoai di mdi trudng nhu nhiet dp, dp im khdng khi, ddng LTu didm sft dung mang cam bidn anh sang, pH nude tudi, ddc tnmg dp am gidm sdt la tinh lidn tuc va tftc thdi ca chit, Cdc dft lieu thdng sd mdi tradng ttong vide phdn ftng lai cdc svr kidn eua mdi dupe thu thap va truydn tai ddn nftt quan ly tradng nha trdng, kjp thdi cd bien phdp nha ttong, sau dd dft lieu dupe trayen ddn canh bao hoac xft ly, hoan toan ed the tridn gateway vd dupe luu trft vdo co sd dft lieu tai khai d quy md co gidn tft mdt vdi nha trdng may chu Dvra tten eae thdng sd thu thap dupe ddn vai chuc nha trdng [4] TAP CHl KINH TE - CONG NGHIEP KHOA HOC UNG DUNG Hinh - Md hinh tdng the cua he thong Sorvar Gateway 4h (m> - ^* Nhktrtfngi Nhliti^ng2 sdng va ddng vai trd la nftt trang gian giua cdc nut cam bidn va trang tdm didu hanh, nhdn dft lieu tft cac nftt cam bien khu vuc va tmyen du lieu ve tmng tdm gSn nhat Ngoai ra, nftt quan ly vftng cdn dam nhan dupe nhiem vu thvrc thi lenh tu trung tam (chang ban kich boat mdy phun suong, md van, ) Hinh la nftt qudn ly nhd trdng - tich hop chftc ndng cam bidn ben canh la nhiet kd va am kd Nftt quan ly nhd trdng Id nai nhdn du lieu tft nftt cdm bidn rdi traydn vd tmng tdm dieu hanh va ddng thdi nhdn tin hieu tft tmng tam dieu hanh gpi thuc thi ddn he thdng tudi Cdu b) Nut quan ly nha (Managemnent true mdt nut quan ly vftng Mpt nftt quan ly Nodes) vung bao gdm thdnh phdn: khdi ndng lupng, Nftt qudn ly nha trdng la nut cd nhiem vu khdi trayen thdng, khoi hien thj, khdi xft ly qudn ly eac nut cam bien \ung phu nut quan ly nha trdng va khdi didu khidn [3] 3.2.2 Md hinh chi tidt nhd trdng Trong dd mdi nhd trdng se bd tri mpt nut qudn ly va cac nut cam bidn ddm bao thu thap hieu qud dft lieu mdi tradng nha trdng a) Nut cam bien (Sensor nodes): Nftt cdm bien la mdt thidt bj dupe trang bj kha nang cam bidn mdi tnrdng nhu dp am khdng khi, nhiet dp, dp pH nude, anh sang, v v giao tiep vdi nut quan ly vung vftng phft sdng de trayen tai dft lieu ve trung tdm dieu hanh Nut cam bidn dupe td chftc gdm phan: khdi trayen thdng, khdi ndng lupng, khdi cam bidn vd khdi xft ly nftt cam bidn [3] rAP CHI KINHTE-CONC KHOA HOC - UNG DUNG Hinh Nhiet ke, am k§ vd nut cam bien - quan ly thu nghiem tai nhd tr^ng trien khai mo hinh (2h20, 20/12/2014) c) Trung tam dieu hanh Trung tam dieu hanh la noi nhan va xu ly dii lieu, tai trung tam dii lieu sau nhan dugc luu trft va hien thi tren may tinh, giiip viec theo doi dien lien tuc vd tuc thai, du lieu mang tinh chinh xdc cao va san dung can Tu PC nguai dung co the lap lich cho he thong tuoi tieu hay hoat dpng thoa man mpt so yeu cau ma hp de PC se tu dpng gai lenh v^ he thong tuoi Tai trung tam co cac kk n6i Internet va SMS h6 trp giam sat hoac dieu khien tu xa, trung tam dieu hanh dupe to chiic nhu sau: may chii (server), modem SMS, Gateway [3] 3.2.3 Phan mem giam sat, didu khien a) Tai cac niit cam bien Chuang trinh nhiing dupe xay dung tai cac niit cam bien thuc thi nhiem vu cii sau mpt khoang thai gian se dac cdc thong r#«7 - so mdi tradng vd gfti dft lieu vd nftt quan ly nha trdng b) Tai nut quan ly nha Chuang trinh nhftng tai nut quan ly nhd trdng thuc hien hai nhiem vu chinh: xft ly cac dft lieu nhdn dupe tft cac nut cam bidn va tmyen ve tmng tdm didu hanh; tidp nhan vd xft ly eac ydu ciu tft trang tam dieu hanh theo chidu ngupc lai Idnh bd chap hanh lam vide Ngoai ra, tai nftt cung trang bj mpt man hinh LCD 16x2 hidn thj thdng tin nhiet dp (Ste) vd dp dm khdng (Shu) dd tidn quan sat tai chd cin c) Tai trung tam dilu hanh Tai trang tdm didu hanh bd tri mdt may chu (server) chay co sd dft lieu SQL Server va phdn mem cd kha nang tidp nhdn dft lieu, giao tidp ngudi dftng, quan ly chip hanh cac Uch dupe lap rAP CHI KINH TE - CONG NGHIEP KHOA HOC-UNG DUNG - Hidn thj v j tri nhd trdng trvrc quan tten bdn chp phep xu ly theo ehe dp uu tien thuc dd, cdc thdng sd va bidu dd theo ddi (Hinh 8) - Giao didn lap Ijch didu khien he thdng theo thdi gian bode thdng sd mdi tmdng thuc hidn cdc edng viec tudi, lam mat, chidu sang, nhd ttdng Ching ban ngudi sft dvmg cd thd ldp Ijch theo thdi gian, be thdng phun suang boat ddng tft ShOO ddn 15h00 va md quat ldm mdt hi 7h30 ddn lOhOO hing hoac vdi ngdy ttong tuin - Tuy nhien, vipe ldp Ijeh theo thdi gian khdng linh boat vdi su- thay ddi cfta didu kidn mdi tradng, ndn he thdng xft ly tai trang tdm dieu hdnh cung cung cip khd ndng didu khien dvra ttdn cdc thdng sd mdi tradng ma nftt qudn ly nha trdng gfti vd Vi du nhiet dp tang cao tten 32°C he thdng bdt mdy phun suang vd tang dp am, nhiet dp xudng dudi 30°C he thdng tu ddng tdt mdy phun suong Hinh the hien vide lap Ijch theo thdng sd cam bidn thi Id cdn thidt Trien khai vd ddnh gid Trong thdi gian qua, md hinh dd duoc ttidn khai thft nghiem trdng nam Linh chi tai Trang tdm Trdng ndm Tradng Dji hpc Kinh td Cdng nghidp Long An vdi cac nut cdm bidn va mpt Gateway nhan tin hieu true tidp tft cdc nftt cdm bidn - qudn ly, tidp nhdn vd luu trft dft lidu tai may chft, ket hpp vdi vide thvrc thi chftc ndng phun suang, eftng vdi kha nang cdnh bdo mdi tradng vupt ngudng ddn ngudi dung qua tin nhdn SMS He thdng hd trp lap Ijch cdc boat ddng canh tdc theo thdng sd mdi tradng ttdn tung nftt quan ly nhd trdng ndn cho phep cae nha trdng cd thd thich ftng trdng vdi nhidu loai nam, giftp ngudi dung cd thd linh boat, uyen chuydn, dan xen canh tae Hinh la giao didn phdn mem tai trung tam didu hanh phuc Viec thvrc thi Ijch cd thd xdy xung dot, do cac ijch lap dupe qudn ly bdi tidn trinh vu viec theo ddi, lap Ijch vd didu khidn cac thiet bj tft mdy tinh Hinh Ldp lich theo thong so cam bien Kieni IranHetdo 1hetb(3nb0i[MSIw,ht|urh6 nrfthilhvclN Wnjnsuang OH diu Ngiy bit dSu 110/26/2014 ESsi-lJnnhJn QGOIEnMe ' I Ngay ket Hue 12/6/2Q14 ^KTdiFwat Loidrnt^€n|*ffita6 Gatrlmd [32 • TAP CHI KINH TE - CONG NGHIEP -^ KHOA HfJC - UNG DUNG Hinh Giao di$n gidm sat tftc thM mdi trudng nhd (lh45 ngdy 20/12/2014) THI^TBI: HMETDO ;3«.c B^MomWOKMI Hd thdng dam nhdn vide gidm sat lien tvic mdi trudng teong nhd trdng, tftc thdi tu: dpng hda mpt sd boat ddng giftp gidm thidu cdng sftc lao dpng vd tdng tinh chinh xac, hipu qua tepng giam sat nhd trdng, xdy dvmg vd thft nghipm co che chip hdnh hr ddng didu khidn eac thidt bi phvic vu kidm sodt mdi tradng, mang cam bidn khdng ddy gift vai trd Id bd kich khdi (ttigger) vide kidm sodt mdi tradng nhd trdng Trong lin thu nghipm ndy chftng tdi da nhdp 150 bjch phdi nim Linh ehi tu Trung tdm phdi nam Sd Khoa hpc & Cdng nghp ã.tB% fl^MMT ; 4ô % Am M M ; 3D3 LUK Long An tidn hdnh ttdng thft nghidm tai tradng dd thft nghidm vd theo ddi boat dpng eua he thdng Hinh thd bien qud teinh ttidn khai md hinh thvrc td tai Tradng D^i hpc Kinh td Cdng nghidp Long An Khoang each traydn tai du lieu tft nha trdng ddn trang tdm didu hanh nai ddt Gateway tidp nhdn dft lidu khodng 350 m, cd mdt sd vdt cdn nhung vdn nhdn dupe tin hieu tdt Ngodi ra, thft nghidm chftc ndng cam bidn cung dupe tich hpp tnrc tidp tren nut qudn ly nhd trdng dd vipe ttidn khai dan gidn vd thudn tipn ban Hinh IVien khai thii' nghidm md hinh KHOA HOC - UNG DUNG iW Qua qua trinh tridn khai, he thdng boat ddng tuong doi dn djnh, budc ddu cho thdy kdt qua tieh cvrc Hinh 10 nim chuan bj thu hoach Hinh 10 Ndm chudn hi thu hoach thft nghiem Sau thdi gian trdng ttr 20/10/2014 den thu hoach 05/12/2014 thu hoach dupe 3,9 kg nam tuoi Sau dd, tidp tuc chay thft nghidm he thdng dd thu hoaeh dpt tidp theo, ddn sau ban thdng he thdng van ddm bao vide van banh vd bd trp tdt cdng vide theo doi nha trdng Thuc svr, sau vai lan tridn khai chay thft tmdc va ca thft nghidm chftng tdi da cd dupe nhiing kdt qua kha quan cho thiy mang cdm bidn khdng day ftng diing vdo sdn xuit ndng nghidp la hudng di thvrc tiin ftng dvmg khoa hpc edng nghe hidn dai vao ndng nghidp, giftp giam chi phi lao ddng ciing nhu tai nguyen sft dung qua trinh kiem soat san xuat dupe cdc chuang trinh mdy tinh thuc hien, mang cam bidn chinh la edng cu dac luc giftp qua trinh san xuit trd ndn chinh xac va hidu qud ban Hinh 11 thft nghidm vide phun suomg theo thdng sd mdi tradng Hinh 11 Lich phun suffng theo thong sd cam bien TTich tfieo thdi tigt I ^ Them ( ^ « B Ii i j X6a l rtiidUct, MS T&i UXl nmuaMetilD fUni Knnlradoain Tfwlh Camt»B, TtwlbittsrcBa r«lv#iltu Uietd^ Ptuianmg MShrtiDu Doan Phuiannj Satnmd Sain ITidganb3tdau'TW^wiket 30 10/26/2014 [12/6/2014 10/26/2014 12/6/2014 a«dl) TAP CHl KINH TE - CONG NGHIEP KHOA HQC - UNG DUNG So sanh dp chinh xac cua cam bien so vai nhiet ke va am kS thong thuong neu sii dung cam bidn DHT 11 thi nhiet dp tuang duang hiem co lech tren/duai 1°C nhung doi khong on dinh tang/giam bdt thuang gay anh huang din viec kich hoat cac thiet bi Rieng dp am co su chenh lech dang k8 doi len den 30% Do do, chiing toi da thay d6i loai cam bidn chdt lupng hon SHTU vai nhiet dp tuong duang nhiet dp bdng nhiet ke, rieng dp am khong diing nhu khuydn cao ciia nha san xuat dp am co su chenh lech so voi thuc te la tren/duai 5%-10%, nhien thuc tl dm kS cung co dp chinh xac tuang duang nhu vay Theo chiing toi, neu su dung cam bien co chat lupng duong nhien dp chinh xac vd on dinh se cao han nhung keo theo chi phi Ion hon Trong truang hap yeu cau nghiem ngat dp chinh xac vd on dinh, chiing ta c6 the su dung SHT71 hoac SHT75 nhung chi phi se cao han rat nhieu Rieng thu nghiem nay, chiing toi chi su dung cam bien SHTll, chiing toi nhan thay neu iing dung nong nghiep SHTll, SHT15 co thS phii hpp dd nhiet dp, dp dm khong D6i vai anh sang chiing toi sir dung LDR12mm-10K/2M doc gia tri ADC lam tham khao theo doi anh sang nhd Tuy mang cam bien khong day dam nhan tot viec dac, theo doi cac thong so moi truang nha trong, cung nhu dieu khien cdc thiet bi nhung dieu kho khan chinh la thu nghiem chi sii dung cac thiet bi tho so kiem sodt vd tri nhiet dp, dp am moi truang nhu phun suang, quat nen chi co the tri cac thong so moi truang can thiet miic han che Tuy vay, viec xet ve hieu qud dau tu nhd vd yeu cdu trong nam thi cac thiet bi phii hap va khd dung tri nhiet dp vd dp am nha chi phi thap Trong thi nghiem chiing ta Idem chiing mang cam bien khong day giam sat dac moi truemg nha lam bp kich khdi (trigger) giiip he th6ng thuc thi cdc CO che chap hanh dieu khien moi truong Hinh 12 Nhi^t vd dg am trung binh gidr 31/10/2014 Bieu nhiet dp 38282828282823 28 29 32 32 32 32 27 27 27 27 KHOA HOC-UNGDUNC Hinh 13 Nhi^t dp vd dp dm trung binh giiV nhd trSng ngdy 01/11/2014 RiBU dii nhial dfi •33 33 33 i Z , ^ 28 a 2» _K_ 37 2, 78 73 80 81 82 Bieu d9 sm khong e4 85 S6 Be 68 B4 Hinh 12 vd Hinh 13 la bieu dd he thdng lue Kdt lu|n nhidtdp33°Cdngay31/ll/2014vd01/ll/2014 Bdi vidt da gidi thieu md hinh mang cam chftng tdi thft tdt didn mdy phun suang, vide bidn khdng ddy phuc vu ndng nghipp ttong dse du lieu vdn diln binh thudng Theo nhd cu thd tedng nim Day Id phuong gid trj nhiet dp vap budi traa lOh ddn 14h phdp mdi san xuit ndng nghidp giiip thudng vupt Idn 33°C vd d$ im xudng thip gidm chi phi lao ddng, tang hidu qua sft dyng nhu thvrc hidn phun suong luc nhiet tdi nguydn ddu vdo, nhung vdi vipc theo dSi se gidm xudng va dp dm tdng len ban (teong lidn tvic eac thay ddi, tdc ddng tft mdi tmdng Hinh 12 ty Id dupe nhipt dp 33°C thap ban dd cd xft ly phft hop ttpng sdn xudt tao ti6n so vdi Hmh 13) Trong thft nghipm chftng tdi dd cho vife dam bdo ndng suat vd chat lupng khdng ttang bj thidt bj tdng nhiet, khdng the san phim ndng sdn MJt khdc, qud trinh didu khidn mdi tmdng tradng hop nhiet cd thd dupe hr dpng hda bdi cdc chucmg tthih dp thdp ban ydu eau du kien may tinh dupe cdi ddt, do md kha nang Thep dd, ndu tridn khai hp thdng d quy md tang quy md sdn xuit song song vdi tiet ki^m nhieu nha trdng, nhidu van didu khidn ta cd chi phi lao dpng Md hinh he thdng da dupe thd sft dung mang cam bidn khdng day dac xdy dvmg, ttidn khai va chjy thft nghifm tji thdng sd tung nha ttdng, thdm chi tung khu tmdng, budc dau boat dpng tdt vd eho thdy vvrc cua nhd ttdng, dieu khidn cac van, thiet tidm nang ftng dvmg manh me eua nd bj theo timg nhd ttdng hay khu vvrc giftp tidt Md hinh ndu cd thd duac phdt trien vd kipm tai nguydn, giam dang kd cdng sftc so ftng dung rpng rai, cimg vdi cdc ehuyen gia vdi md timg thidt bj, di lai theo ddi va dac ndng nghipp ta cd thd khai thac cdc dft li^u cd bdng nhiet kd dupe qua ttinh san xuit tim bO thdng umiiiMiiMmnmim iMtiiiena KHOA HOC - UNG DUNG SO tdi uu cho nhieu lo?i sdn phdm ndng san, phdt huy hieu qua tidm ndng va the manh cua san xudt dia phuomg tdi uu nang sudt va lpi nhuan ttdn ddu tu cfta minh bdng each tidt kidm cdc chi phi lidn quan Cd the xem m?ng cdc nftt cam bidn eung vdi khd nang luu trft cac dft lieu vao eo sd dft lieu teen may tinh chinh la mpt he thu th^p dft lieu mdi ttudng, cd thd ket hpp vdi nhieu thdng tin luu trtt khdc ddp umg nhumg muc tidu xa hom teong phvic vvi ndng nghiep (chdng han nhu hd ttp quydt dinh, tta ciiu, dvr bao mfta vu tdt ban) Tai lifu Iham khao [1] Le Duy Thang (2006), Ky thuat ndm - Tap I Nuoi mgt so ndm dn thong dirng a Vi4t Nam, NXB Ndng nghiep TPHCM [2] Le Duy Thang, Trin Van Minh (2005), Sd tay hu&ng ddn trdng ndm, NXB Ndng nghipp TPHCM [3] Ld Dinh Tudn, Thai Doan Ngpc (2013), Xdy dung mgng cdm Men khong ddy nong nghiep chinh xdc, Hdi thdo qudc gia ve CNTT nam 2013 - Tmdng Dai hpc Cin Tho [4] Le Dinh Tudn, Hd Tan Dat (2014), Xdy dung mgng cdm bien khong ddy img dung nong nghiep nhd Tap chi Kinh td - Cdng nghidp sd [5] Phan Ngpc Nhuan (2008), Nuoi ndm bdo ngu, http://elib.hcmuaf.edu.vn/elib-4796-l/ nuoi-trong-nam-baa-ngu.html [6] Traomg Qudc Tftng (2009), Hdi ddp ky thuat ndm a hg gia dinh Khoa hgc tu nhien vd cong ngh4, http://thuvien.mard.gav.vn/csdl-hai-dap/ky-thuat-ttong-ttot/quy-ttinb-ky-thuatsan-xuat-nam-linh-ehi—583 [7] Md hinh tedng ndm d Ba Tri, http://www.bentte.gov.vn/content/view/15004/42/ [8] Md hinh trdng nim d Chau Thanh, http://wTvw.vietlinh.com.vn/library/agriculttue_plantation/nambaongu.asp [9] Md hinh trdng nim d Sa Dec, http://tinhdoandangthap.org.vn/detail2.aspx?recid=2132&groupid=30 Ngdy nhan: 16/3/2015 Ngdy duyft fldng: 08/4/2015 PCHI KINH TE - CONG NGHIEP ... hien vide lap Ijch theo thdng sd cam bidn thi Id cdn thidt Trien khai vd ddnh gid Trong thdi gian qua, md hinh dd duoc ttidn khai thft nghiem trdng nam Linh chi tai Trang tdm Trdng ndm Tradng... tren nut qudn ly nhd trdng dd vipe ttidn khai dan gidn vd thudn tipn ban Hinh IVien khai thii'' nghidm md hinh KHOA HOC - UNG DUNG iW Qua qua trinh tridn khai, he thdng boat ddng tuong doi dn djnh,... nhu sau: Trong ndm kit hgp vai tdn cdy ngodi trai dan den Id thude nhidu vdo didu kien tu nhidn (nang, mua, gid lanh, ), sdn lupng nam that thudng vd Id thudc vdo mua vu [2, tt 31 - 32] Trong ndm