Pamene msika wapadziko lonse waulimi wapamadzi ukukulirakulira, mitundu yaulimi yachikhalidwe imakumana ndi zovuta zambiri kuphatikiza kusamalidwa bwino kwa madzi, kuyang'anira kosakwanira kwa okosijeni, komanso kuopsa kwaulimi. M'nkhaniyi, masensa a okosijeni osungunuka opangidwa ndi mfundo za kuwala atulukira, pang'onopang'ono m'malo mwa ma electrochemical sensors achikhalidwe ndi ubwino wawo wolondola kwambiri, osasamalira bwino, komanso kuyang'anira nthawi yeniyeni, kukhala zida zofunika kwambiri pa usodzi wamakono wamakono. Nkhaniyi ikupereka kuwunika mozama momwe masensa a okosijeni osungunuka amawunikira zowawa zamakampani kudzera muukadaulo waukadaulo, akuwonetsa momwe amagwirira ntchito bwino pakuwongolera bwino ulimi komanso kuchepetsa zoopsa kudzera muzochitika zenizeni, ndikuwunika chiyembekezo chachikulu chaukadaulo uwu polimbikitsa kusintha kwanzeru kwa zamoyo zam'madzi.
Mfundo Zowawa Zamakampani: Zocheperako za Njira Zachikhalidwe Zowonongeka za Oxygen Monitoring
Makampani opanga zam'madzi akhala akukumana ndi zovuta zazikulu pakuwunika kwa mpweya wosungunuka, zomwe zimakhudza mwachindunji kupambana kwaulimi komanso phindu lachuma. M'mitundu yachikhalidwe yaulimi, alimi nthawi zambiri amadalira kuyang'anira dziwe lamanja ndi chidziwitso kuti awone kuchuluka kwa okosijeni wosungunuka m'madzi, njira yomwe singogwira ntchito bwino komanso imachedwa kuchedwa. Alimi odziwa bwino amatha kuweruza matenda a hypoxia mwa njira ina powona momwe nsomba zikuwonekera kapena kusintha kwa kadyedwe, koma pamene zizindikirozi zikuwonekera, zowonongeka zomwe sizingasinthe nthawi zambiri zimakhala zikuchitika kale. Ziwerengero zamakampani zikuwonetsa kuti m'mafamu azikhalidwe opanda njira zowunikira mwanzeru, kufa kwa nsomba chifukwa cha hypoxia kumatha kufika mpaka 5%.
Electrochemical dissolved oxygen sensors, monga oimira teknoloji yowunikira mibadwo yam'mbuyomu, athandizira kuwonetsetsa kulondola pamlingo wina koma akadali ndi malire ambiri. Masensawa amafunikira kusinthidwa pafupipafupi kwa membrane ndi electrolyte, zomwe zimapangitsa kuti pakhale mtengo wokwera wokonza. Kuonjezera apo, ali ndi zofunikira zokhwima za kuthamanga kwa madzi, ndipo miyeso m'madzi osasunthika amatha kupotozedwa. Chofunikira kwambiri, masensa a electrochemical amakumana ndi kusuntha kwakanthawi pakagwiritsidwe ntchito kwanthawi yayitali ndipo amafuna kusanja pafupipafupi kuti zitsimikizire kulondola kwa data, ndikuyika zolemetsa pakuwongolera mafamu tsiku ndi tsiku.
Kusintha kwadzidzidzi kwamadzi kumakhala "akupha osawoneka" m'zamoyo zam'madzi, ndipo kusinthasintha kwakukulu kosungunuka kwa okosijeni nthawi zambiri kumakhala zizindikiro zoyambirira za kuwonongeka kwa madzi. M'nyengo yotentha kapena kusintha kwadzidzidzi, mpweya wosungunuka m'madzi ukhoza kutsika kwambiri pakapita nthawi yochepa, zomwe zimapangitsa kuti zikhale zovuta kuti njira zowunikira zizindikire kusintha kumeneku panthawi yake. Mlandu wodziwika bwino unachitika ku Baitan Lake Aquaculture Base mumzinda wa Huanggang, m'chigawo cha Hubei: chifukwa cholephera kuzindikira msanga mpweya wosungunuka wosungunuka, mwadzidzidzi hypoxic idawononga pafupifupi maekala ambiri a maiwe a nsomba, zomwe zidabweretsa kuwonongeka kwachuma kupitilira yuan miliyoni imodzi. Zochitika zofananazi zimachitika kawirikawiri m'dziko lonselo, kuwonetsa zofooka za njira zachikhalidwe zowunikira mpweya wosungunuka.
Ukadaulo waukadaulo wowunikira okosijeni womwe wasungunuka sikungokhudza kupititsa patsogolo ulimi komanso chitukuko chokhazikika chamakampani onse. Pamene kachulukidwe kaulimi akuchulukirachulukira komanso zofunikira zachilengedwe zikukulirakulira, kufunikira kwamakampani olondola, nthawi yeniyeni, komanso kusamalidwa kocheperako komwe kusungunuka kwa oxygen kukukula mwachangu. Ndizotsutsana ndi izi kuti masensa a okosijeni osungunuka, omwe ali ndi ubwino wake wapadera, adalowa pang'onopang'ono m'munda wa masomphenya a zamoyo zam'madzi ndikuyamba kukonzanso njira yamakampani yoyendetsera khalidwe la madzi.
Kupambana Patekinoloje: Mfundo Zogwirira Ntchito ndi Ubwino Wofunika Wama Optical Sensors
Ukadaulo wapakatikati wa masensa a okosijeni osungunuka amachokera ku mfundo yozimitsa mpweya wa fluorescence, njira yatsopano yoyezera yomwe yasinthiratu kuwunika kwakanthawi kwa oxygen. Pamene kuwala kwa buluu kumatulutsa kachipangizo kamene kamatulutsa chinthu chapadera cha fulorosenti, zinthuzo zimakondwera ndipo zimatulutsa kuwala kofiira. Mamolekyu a okosijeni ali ndi kuthekera kwapadera konyamula mphamvu (kutulutsa mphamvu), kotero mphamvu ndi nthawi ya kuwala kofiira komwe kumatulutsa zimayenderana mosagwirizana ndi kuchuluka kwa mamolekyu a okosijeni m'madzi. Poyesa molondola kusiyana kwa gawo pakati pa kuwala kofiira kosangalatsa ndi kuunika kofotokozera ndikuyerekeza ndi ma calibration amkati, sensa imatha kuwerengera molondola kuchuluka kwa mpweya wosungunuka m'madzi. Kuchita kwathupi kumeneku sikumakhudzanso kusintha kwamankhwala, kupewa zovuta zambiri za njira zama electrochemical.
Poyerekeza ndi masensa achikhalidwe a electrochemical, masensa a okosijeni osungunuka amawonetsa zabwino zambiri zaukadaulo. Choyamba ndi khalidwe lawo losagwiritsa ntchito okosijeni, zomwe zikutanthauza kuti alibe zofunikira zapadera za kuthamanga kwa madzi kapena kugwedezeka, zomwe zimawapangitsa kukhala oyenera kumadera osiyanasiyana aulimi-kaya maiwe osasunthika kapena matanki othamanga angapereke zotsatira zolondola zoyezera. Chachiwiri ndi ntchito yawo yoyezera kwambiri: mbadwo waposachedwa wa masensa owoneka amatha kukwaniritsa nthawi zoyankhira zosakwana masekondi a 30 ndi kulondola kwa ± 0.1 mg / L, zomwe zimawathandiza kuti azitha kusintha mosadziwika bwino mu mpweya wosungunuka. Kuphatikiza apo, masensa awa nthawi zambiri amakhala ndi mawonekedwe amagetsi ambiri (DC 10-30V) ndipo amakhala ndi njira zoyankhulirana za RS485 zomwe zimathandizira protocol ya MODBUS RTU, zomwe zimawapangitsa kukhala osavuta kuphatikiza mumayendedwe osiyanasiyana owunikira.
Kugwira ntchito kwa nthawi yayitali popanda kukonza ndi chimodzi mwazinthu zodziwika bwino za optical dissolved oxygen sensors pakati pa alimi. Zomverera zachikhalidwe zama electrochemical zimafuna kusinthidwa pafupipafupi kwa membrane ndi electrolyte, pomwe masensa owoneka bwino amachotsa zonse zomwe zimagwiritsidwa ntchito, ndi moyo wautumiki wopitilira chaka chimodzi, kuchepetsa kwambiri ndalama zosamalira tsiku ndi tsiku komanso kuchuluka kwa ntchito. Woyang’anira zaumisiri pa malo akuluakulu a zamoyo za m’madzi ku Shandong ananena kuti: “Kuyambira pamene tinasinthiratu masensa a okosijeni amene asungunuka, ogwira ntchito yokonza zinthu apulumutsa pafupifupi maola 20 pamwezi posamalira sensa, ndipo kukhazikika kwa deta kwasintha kwambiri.
Pankhani ya mapangidwe a Hardware, masensa amakono a optical osungunuka okosijeni amaganiziranso mozama mawonekedwe apadera a malo am'madzi. Malo otetezedwa kwambiri (omwe amafika ku IP68) amalepheretsa madzi kulowa, ndipo pansi pake amapangidwa ndi zitsulo zosapanga dzimbiri 316, zomwe zimapereka kukana kwanthawi yayitali mchere ndi dzimbiri zamchere. Masensa nthawi zambiri amakhala ndi maulalo opangidwa ndi NPT3/4 kuti akhazikike mosavuta ndikuwongolera, komanso zoyikapo zapaipi zopanda madzi kuti zigwirizane ndi zowunikira mosiyanasiyana. Zambiri zamapangidwewa zimatsimikizira kudalirika kwa masensa ndi kulimba m'malo ovuta aulimi.
Mwachidziwikire, kuwonjezera kwa ntchito zanzeru kwathandiziranso magwiridwe antchito a ma sensor osungunuka okosijeni. Zitsanzo zambiri zatsopano zimakhala ndi ma transmitter omangidwira omwe ali ndi chiwongola dzanja chodzidzimutsa, ndikuchepetsa kulakwitsa koyezera komwe kumachitika chifukwa cha kusinthasintha kwa kutentha kwa madzi. Zogulitsa zina zapamwamba zimathanso kutumiza deta mu nthawi yeniyeni kudzera pa Bluetooth kapena Wi-Fi kupita ku mapulogalamu a m'manja kapena mapulaneti amtambo, zomwe zimathandiza kuyang'anira kutali ndi mafunso a mbiri yakale. Miyezo ya okosijeni yosungunuka ikapitilira malo otetezeka, makinawo amatumiza zidziwitso nthawi yomweyo kudzera pazidziwitso zapa foni yam'manja, mameseji, kapena mayendedwe amawu. Maukonde anzeruwa amalola alimi kudziwa za momwe madzi alili komanso kuchitapo kanthu panthawi yake, ngakhale atakhala kuti alibe malo.
Kupita patsogolo kumeneku kwaukadaulo wa optical dissolved oxygen sensor sikuti kumangokhudza zowawa za njira zachikhalidwe zowunikira komanso kumapereka chithandizo chodalirika cha data pakuwongolera bwino zaulimi wa m'madzi, zomwe zimagwira ntchito ngati mizati yofunika kwambiri yaukadaulo popititsa patsogolo chitukuko chamakampani ku nzeru ndi kulondola.
Zotsatira za Kugwiritsa Ntchito: Momwe Ma Optical Sensors Amathandizira Kulima Mwachangu
Ma sensor opangidwa ndi okosijeni osungunuka apeza zotsatira zabwino kwambiri pakugwiritsa ntchito zamoyo zam'madzi, ndipo mtengo wake umatsimikiziridwa m'njira zingapo, kuchokera pakuletsa kufa kwa anthu ambiri mpaka kukulitsa zokolola ndi zabwino. Mlandu woyimilira makamaka ndi Baitan Lake Aquaculture Base m'boma la Huangzhou, Huanggang City, Province la Hubei, pomwe zowunikira zisanu ndi zitatu za 360-degree zonse zanyengo ndi masensa a okosijeni osungunuka adayikidwa, kuphimba maekala 2,000 amadzi pamtunda wa maiwe 56 a nsomba. Katswiri wina wa zaukatswiri, dzina lake Cao Jian, anafotokoza kuti: “Kudzera m’zidziwitso za nthawi yeniyeni pakompyuta, timatha kuona zolakwika nthawi yomweyo.” Mwachitsanzo, pamene mulingo wa okosijeni wosungunuka pa Monitoring Point 1 ukusonyeza 1.07 mg/L, ngakhale kuti zinachitikira zingasonyeze kuti ndi nkhani yofufuza, timadziwitsa alimi nthawi yomweyo kuti awone, kuonetsetsa kuti ali otetezeka.” Njira yowunikira nthawi yeniyeniyi yathandiza mazikowo kuti asapewe ngozi zingapo zobwera chifukwa cha hypoxia. Liu Yuming, yemwe anali katswiri wa usodzi, anati: “M’mbuyomu, tinkada nkhawa ndi vuto la hypoxia mvula ikagwa ndipo sitinkagona bwino usiku.” Tsopano, ndi ‘maso a pakompyuta’ amenewa, akatswiri amatiuza za vuto lililonse, zomwe zimatilola kusamala msanga.
Muzochitika zaulimi wochuluka kwambiri, masensa a oxygen osungunuka amatenga gawo lofunikira kwambiri. Kafukufuku wochitika ku “Future Farm” malo osungiramo nsomba za digito ku Huzhou, Zhejiang, akuwonetsa kuti mu thanki ya masikweya-mita 28 yokhala ndi pafupifupi ma jin 3,000 a ku California (pafupifupi nsomba 6,000)—zofanana ndi kuchuluka kwa maekala amodzi m'mayiwe achikhalidwe—kuwongolera zovuta za okosijeni wosungunuka. Kupyolera mu kuyang'anira nthawi yeniyeni ndi masensa a kuwala ndi machitidwe ogwirizanitsa anzeru a aeration, malo osungiramo nsomba adachepetsa kufa kwa nsomba kuchokera pa 5% m'mbuyomu kufika pa 0.1%, pamene akupeza kuwonjezeka kwa 10% -20% pa mu. Katswiri wa zaulimi Chen Yunxiang anati: “Popanda kuti mpweya wa okosijeni wasungunuka ndendende, sitingayerekeze kuyesa kuchulukana kotereku.”
Recirculating Aquaculture Systems (RAS) ndi malo ena ofunikira pomwe masensa a okosijeni osungunuka amawonetsa kufunika kwake. "Blue Seed Industry Silicon Valley" ku Laizhou Bay, Shandong, yamanga msonkhano wa RAS wa maekala 768 ndi matanki olima 96 omwe amapanga matani a 300 a nsomba zapamwamba pachaka, pogwiritsa ntchito 95% madzi ochepa kusiyana ndi njira zachikhalidwe. Malo oyendetsera digito pamakinawa amagwiritsa ntchito masensa owoneka bwino kuwunika pH, okosijeni wosungunuka, mchere, ndi zizindikiritso zina mu thanki iliyonse munthawi yeniyeni, ndikuyambitsa aeration pomwe mpweya wosungunuka ugwera pansi pa 6 mg/L. Mtsogoleri wa polojekitiyi anafotokoza kuti: “Mitundu yofanana ndi kagulu ka nyalugwe imakhudzidwa kwambiri ndi kusintha kwa mpweya wa okosijeni, zomwe zimapangitsa kuti zikhale zovuta kuti njira zachikhalidwe zikwaniritse zofuna zawo zaulimi. Momwemonso, malo odyetserako zam'madzi m'chipululu cha Gobi cha Aksu, Xinjiang, adakulitsa bwino zakudya zam'madzi zam'madzi, kutali ndi nyanja, ndikupanga chozizwitsa cha "zakudya zam'nyanja kuchokera kuchipululu", chifukwa chaukadaulo wa optical sensor.
Kugwiritsa ntchito ma sensor optical dissolved oxygen kwapangitsanso kuti pakhale kusintha kwakukulu pazachuma. Liu Yuming, mlimi wa ku Baitan Lake ku Huanggang, ananena kuti atagwiritsa ntchito njira yanzeru yolondolera, maiwe ake a nsomba a maekala 24.8 anatulutsa madzi opitirira 40,000, kupitirira gawo limodzi mwa magawo atatu kuposa chaka chatha. Malinga ndi ziwerengero zochokera ku bizinesi yayikulu yolima zam'madzi ku Shandong, njira yolondola yoyendera mpweya motsogozedwa ndi masensa owoneka bwino idachepetsa mtengo wamagetsi wamagetsi ndi pafupifupi 30% pomwe kuwongolera kusintha kwazakudya ndi 15%, zomwe zidapangitsa kuti mtengo wonse wopangira uchepe 800-1,000 yuan pa tani imodzi ya nsomba.
Titha kuperekanso mayankho osiyanasiyana
1. M'manja mita kwa Mipikisano parameter madzi khalidwe
2. Dongosolo la Buoy loyandama lamtundu wamadzi wamitundu yambiri
3. Burashi yotsuka yokha yamadzi ambiri amadzimadzi
4. Seti yathunthu ya ma seva ndi pulogalamu yopanda zingwe, imathandizira RS485 GPRS / 4g/WIFI/LORA/LORAWAN
Kuti mudziwe zambiri za Water quality sensor zambiri,
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Nthawi yotumiza: Jul-07-2025