Litlhoko tsa Hydrological Monitoring Philippines le Melemo ea Radar Technology
E le naha ea lihlekehleke tsa Asia Boroa-bochabela e nang le lihlekehleke tse fetang 7 000, Philippines e na le sebaka se rarahaneng se nang le linōka tse ngata ’me e tobane le litšokelo tse sa khaotseng tsa maholiotsoana le lifefo tse bakang likhohola. Ho ea ka lintlha tsa Banka ea Lefatše, tahlehelo ea selemo le selemo ea moruo e bakoang ke likhohola Philippines e fihla ho lidolara tse limilione tse makholo tsa US, e leng se etsang hore tlhahlobo e nepahetseng ea metsi e be karolo ea bohlokoa ea tsamaiso ea naha ea thibelo le ho fokotsa likoluoa.
Theknoloji ea sensor ea boemo ba radar, e nang le bokhoni ba eona ba ho lekanya batho bao e seng batho bao ho kopanang le bona, e se e le tharollo e nepahetseng bakeng sa liphephetso tsa Philippines tsa tlhahlobo ea metsi. E ipapisitse le melao-motheo e fapaneng ea maqhubu a motlakase, theknoloji ena e fana ka melemo e meraro ea mantlha: 1) tekanyo e nepahetseng ea boemo bo phahameng ba millimeter; 2) maemo a matla a tikoloho a loketseng boemo ba leholimo ba tropike ba Philippines ba mocheso o phahameng le mongobo; le 3) litlhoko tse tlase tsa tlhokomelo, ho fokotsa haholo maqhubu a ho boloka lisebelisoa libakeng tse hōle.
Ka botekgeniki, lisensara tsa boemo ba radar tse sebelisoang Philippines haholo-holo li sebetsa ka lihlopha tse peli tsa maqhubu: K-band (24GHz) le maqhubu a phahameng a 80GHz. K-band radar e fana ka melemo ea litšenyehelo e loketseng ho romelloa ka bongata, ha radar ea 80GHz e sebetsa hantle haholo libakeng tse rarahaneng.
Lits'ebetso tsa Tekolo ea Boemo ba Radar ho Mecha ea Temoso ea Moroallo
Khokahano ea tlhokomeliso ea likhohola tsa naha ea Philippines e sebelisa lisebelisoa tsa ho lekola boemo ba radar e le likarolo tsa mantlha tsa tekheniki. Morerong o moholo oa 2019, mmuso oa Philippines o ile oa sebelisa marang-rang a ho lekola boemo ba metsi ho latela theknoloji ea phetiso ea seea-le-moea ho pholletsa le linoka tse 18 tse kholo. Sistimi ena e bonts'a melemo ea bohlokoa libakeng tse lithaba le maemo a maholiotsoana: ho kenella ka matla ha leqhubu la seea-le-moea ho sa angoe ke tšenyo ea litšebeletso tsa mehala ea mehala; tšebeliso e tlase haholo ea matla e nolofalletsang ts'ebetso ea nako e telele ka matla a letsatsi feela. Lintlha tsa ts'ebetso li bonts'a hore sistimi e fihlella botsitso ba phetiso ea data ea 99.7%.
Tharollo e 'ngoe e atlehileng e sebelisa theknoloji ea radar ea K-band e khonang ho lekanya boemo ba metsi ka nako e le ngoe, lebelo la phallo ea metsi le ho bala ho tsoa. Bokhoni bona ba ho beha leihlo bo sebetsang ka bongata bo bonahala bo le bohlokoa haholo bakeng sa litemoso tsa likhohola. Lisebelisoa tsa radar tsa sistimi li na le litekanyo tse kholo tsa limithara tse 30-70 ka ho nepahala ha boemo ba limilimithara, 'me tekanyo eo e seng ea khokahanyo e qoba litaba tsa lisensara tsa setso tse senyehang kapa ho koaloa ke likhohola.
Tlhahlobo ea Lekhotla la Naha la Phokotso le Tsamaiso ea Likotsi tsa Likoluoa e tlaleha hore ka mor'a ho kenya ts'ebetsong mekhoa ea ho shebella boemo ba radar, nako e tloaelehileng ea ho fana ka temoso ea likhohola e ile ea ntlafala ho tloha ho 2 ho ea ho lihora tsa 6, ka katleho ea ho falla le litekanyetso tsa tšireletso ea thepa li eketseha ka 35% le 28% ka ho latellana.
Tlhokomelo ea Boemo ba Radar ka Metsing ea Litoropo le Phekolo ea Metsi a Litšila
Sistimi ea ho lekola metsi a litoropo ea Metro Manila, litekanyo tsa radar tsa 80GHz FMCW li bonts'a ts'ebetso e ntle haholo. E etselitsoe ka ho khetheha bakeng sa libaka tse rarahaneng tsa litoropo, lisebelisoa tsena li na le: mohaho o kopanetsoeng o loketseng ho kenngoa liphaepheng tse moqotetsane tsa drainage le liliba tsa ho hlahloba; boemo bo phahameng ba tšireletso bo netefatsang ts'ebetso nakong ea lipula tse matla le likhohola; le li-module tsa waelese tse nolofalletsang tlhophiso ea litsebi tse hole. Lintlha tsa tšimo li bonts'a ts'ebetso e ntle haholo ha e kenella maemong a tloaelehileng a liphaephe tsa metsi tsa litoropong joalo ka mouoane, foam, le lintho tse tiileng tse emisitsoeng, ho boloka tekanyo e nepahetseng ka har'a ± 3mm.
Lits'ebetsong tsa kalafo ea metsi a litšila, litekanyo tse phahameng tsa maqhubu a radar ea FMCW li ipabola ho lekola tanka ea sedimentation. Moqapi o tsepamisitsoeng oa mapolanka ka katleho o fokotsa tšitiso ea ho hasanya matšoao ho tloha ho lintho tse tiileng tse emisitsoeng; li-angles tse moqotetsane haholo li thibela matšoao a bohata ho tloha maboteng a tanka; le lihlahisoa tse tloaelehileng tsa pontšo li hokahanya ka ho toba le lipompo tsa ho tlosa li-sludge bakeng sa ho laola ka ho feletseng. Lintlha tsa ts'ebetso li bonts'a litekanyo tsa boemo ba radar li ntlafatsa ts'ebetso ea kalafo ea seretse ka 20% ha li ntse li boloka chelete e ngata ea selemo le selemo litšenyehelong tsa tlhokomelo ea basebetsi.
Lithuto tsa Tekanyo ea Boemo ba Radar ea indasteri
Mapolasing a polokelo ea oli, litekanyo tsa radar tsa wave wave li fana ka tharollo ea bohlokoa bakeng sa ho lekola metsi a kotsi. E na le li-antenna tse tsepamisitsoeng tse kentsoeng liphaepheng tse khutšoane ho qoba tšitiso ea lebota la tanka, lisebelisoa tsena li fihlella ho nepahala ha tekanyo ea tekanyo ea phetiso ea khoebo. Moralo oa bona o bolokehileng ka hare ho naha o kopana le litekanyetso tsa machaba tse thibelang ho phatloha, ka theknoloji ea ho itlhahloba nako le nako e lekola boemo ba lisebelisoa ho matlafatsa polokeho ea ts'ebetso haholo. Litlaleho li bonts'a litekanyo tsa boemo ba radar li fokotsa likhang tsa tekanyo haholo le ho hlahisa melemo e mengata ea moruo ka taolo e nepahetseng ea thepa.
Indastering ea lik'hemik'hale, litekanyo tse phahameng tsa maqhubu a radar ea FMCW ka katleho li rarolla liphephetso tsa tekanyo bakeng sa lino tse senyang haholo le tse sa fetoheng. E hahiloe ka lisebelisoa tse thibelang ho bola, matšoao a tsona a maqhubu a phahameng a fana ka ho kenella ka matla ho sa ameheng ke ho kena-kenana le mouoane, ha qeto e phahameng haholo e nka liphetoho tsa metsotsoana. Lintlha tsa ho kopanya limela li bonts'a litekanyo tsa radar haholo li ntlafatsa botsitso ba taolo ea tanka le ho felisa litšitiso tsa tlhahiso ho tsoa liphosong tsa tekanyo.
Likopo tsa Tekolo ea Boemo ba Metsi ho Nosetso ea Temo le Motlakase oa Metsi
Sistimi e kholo ea nosetso ea Luzon Leboea, li-gauge tsa boemo ba metsi ba radar tse sa amaneng le tsona li lekola li-node tsa bohlokoa likanaleng tse kholo. Ka ho sebelisa maqhubu a K-band a nang le li-angles tse nyane tsa maballo ho qoba likhakanyo tsa mafika, ts'ireletso ea IP68 bakeng sa tikoloho e thata ea kantle, le matla a letsatsi bakeng sa libaka tse hole, bolaoli ba nosetso bo tlaleha ho nepahala ha kabo ea metsi ka 95% le keketseho ea 15% ea lihlahisoa tsa raese.
Setsing se seholo sa polokelo ea matla a metsi, litekanyo tsa boemo ba metsi ba radar ea 80GHz li lekola maemo a letamo la forebay ka bophara ba limithara tse 40 le ± 2mm ka nepo, li fetisa lintlha tsa nako ea nnete ka mats'oao a 4-20mA ho litsamaiso tsa taolo ea limela. Litlaleho tsa ts'ebetso li bonts'a litekanyo tsa radar li thusa ho ntlafatsa katleho ea phepelo ea motlakase ka 8% ha ho ntse ho netefatsa polokeho ea likhohola.
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Nako ea poso: Jul-17-2025