M'minda yayikulu ya Central Valley ku California, kusintha kwaulimi koyendetsedwa ndiukadaulo kukuchitika mwakachetechete. Famu yayikulu yakumaloko, Golden Harvest Farms, posachedwapa idayambitsa ukadaulo wa RS485 wowunikira nthaka kuti uzitha kuyang'anira deta yofunika kwambiri monga chinyezi cha nthaka, kutentha ndi mchere munthawi yeniyeni, potero kukwaniritsa ulimi wothirira ndikusunga madzi moyenera.
Chigwa chapakati cha California ndi chimodzi mwa madera ofunika kwambiri ulimi ku United States, koma chilala ndi kusowa kwa madzi m'zaka zaposachedwa zabweretsa zovuta zazikulu ku ulimi wamba. Golden Harvest Farm imalima mbewu zosiyanasiyana zamtengo wapatali, kuphatikizapo maamondi, mphesa ndi tomato. Pothana ndi vuto la madzi, alimi adaganiza zogwiritsa ntchito ukadaulo wa RS485 kuti apititse patsogolo kayendetsedwe ka ulimi wothirira komanso kuchepetsa kuwononga madzi.
Sensa ya nthaka ya RS485 ndi sensor yolondola kwambiri yochokera ku RS485 yolumikizana ndi protocol yomwe imatha kusonkhanitsa deta yanthaka munthawi yeniyeni ndikuitumiza ku dongosolo lapakati lowongolera kudzera pa intaneti ya waya. Alimi amatha kuyang'ana nthaka patali kudzera pa mafoni a m'manja kapena makompyuta, ndikusintha ndondomeko za ulimi wothirira kutengera zomwe zalembedwa kuti zitsimikizire kuti mbewu zimakula bwino.
Michael Johnson, woyang’anira ntchito wa Golden Harvest Farm, anati: “Masensa a m’nthaka a RS485 asinthiratu mmene timathirira.
Malinga ndi deta yaulimi, mutatha kugwiritsa ntchito masensa a nthaka a RS485, madzi amthirira achepetsedwa ndi 30%, zokolola zawonjezeka ndi 15%, ndipo mchere wa nthaka wakhala ukuyendetsedwa bwino, kupeŵa kuwonongeka kwa nthaka chifukwa cha kuthirira kwambiri.
Akatswiri a zaulimi ku yunivesite ya California, Davis amazindikira izi. Lisa Brown, pulofesa wa pasukulu ya zaulimi ndi zachilengedwe payunivesiteyo, ananena kuti: “Nyezi za RS485 n’zothandiza kwambiri pa ulimi wolondola kwambiri. Zingathandize alimi kuti azigwiritsa ntchito madzi bwino m’madera ouma komanso kuti ulimi usamayende bwino.
Kuchita bwino kwa Golden Harvest Farm kukukwezedwa mwachangu ku California ndi mayiko ena azaulimi. Alimi ochulukirachulukira akuyamba kutchera khutu ndikugwiritsa ntchito ukadaulo wa RS485 kuti athe kuthana ndi zovuta zomwe zikuchulukirachulukira zamadzi.
"Sensa ya nthaka ya RS485 sikuti imangothandiza kuti tisunge ndalama, komanso imatithandiza kuteteza chilengedwe," Johnson anawonjezera. "Tikukhulupirira kuti ukadaulo uwu ukhala pachimake pakukula kwaulimi mtsogolo."
Za sensa ya nthaka ya RS485:
Sensa ya nthaka ya RS485 ndi sensor yolondola kwambiri yochokera ku protocol yolumikizirana ya RS485 yomwe imatha kuyang'anira deta yofunika monga chinyezi cha nthaka, kutentha ndi mchere munthawi yeniyeni.
Sensa ya nthaka ya RS485 imatumiza deta ku dongosolo lapakati lolamulira kudzera pa intaneti ya mawaya, kuthandiza ogwiritsa ntchito kukwaniritsa ulimi wothirira ndi kupulumutsa madzi moyenera.
Sensa ya nthaka ya RS485 ndiyoyenera pazochitika zosiyanasiyana monga ulimi wakumunda, kubzala wowonjezera kutentha, kusamalira minda ya zipatso, ndipo imachita bwino kwambiri m'malo owuma.
Za ulimi waku America:
Dziko la United States ndi dziko limene limapanga zaulimi komanso kugulitsa zinthu kunja, ndipo ulimi ndi chimodzi mwa zinthu zofunika kwambiri pazachuma.
Chigwa chapakati cha California ndi malo olimapo ofunikira kwambiri ku United States, omwe amadziwika ndi kulima mbewu zamtengo wapatali monga maamondi, mphesa, ndi tomato.
Ulimi waku America umayang'ana kwambiri zaukadaulo wasayansi ndiukadaulo ndipo umagwiritsa ntchito ukadaulo wolondola waulimi kuti upangitse bwino komanso kugwiritsa ntchito bwino zinthu.
Nthawi yotumiza: Feb-24-2025