"Ukuze ubone amandla aphelele alezi zindiza zikagesi, udinga uhlelo lokulawula oluhlakaniphile oluthuthukisa ukuqina kwazo futhi ikakhulukazi ukuqina kwazo ngokumelene namaphutha ahlukahlukene," kusho u-Soon-Jo Chung, u-Bren Professor of Control and Dynamical Systems e-Caltech and. Usosayensi Omkhulu Wocwaningo kwa-JPL, uCaltech ophethe iNASA. "Sisungule uhlelo olunjalo olubekezelela amaphutha olubalulekile ezinhlelweni ezizimele ezibaluleke kakhulu kwezokuphepha, futhi lwethula umbono wezinzwa ezibonakalayo zokutholwa kwanoma yikuphi ukwehluleka kusetshenziswa ukufunda ngomshini nezindlela zokulawula eziguquguqukayo."
Amarobhothi Amaningi Asho Amaphuzu Amaningi Angaba Khona Okwehluleka
Onjiniyela bakha lezi zindiza eziyingxube zikagesi ezinama-propeller amaningi, noma ama-rotor, ngokwengxenye ukuze aphelelwe amandla: Uma i-rotor eyodwa ihluleka, kusala izinjini ezisebenzayo ezanele ukuze zihlale emoyeni. Nokho, ukuze kuncishiswe amandla adingekayo okwenza indiza phakathi kwezindawo zasemadolobheni—ake sithi, amakhilomitha angu-10 noma angu-20—umkhumbi nawo udinga amaphiko angashintshi. Ukuba nakho kokubili ama-rotor namaphiko, noma kunjalo, kudala amaphuzu amaningi okwehluleka okungenzeka endizeni ngayinye. Futhi lokho kushiya onjiniyela nombuzo wokuthi bangathola kanjani kangcono uma kukhona okungahambanga kahle kunoma iyiphi ingxenye yemoto.
Onjiniyela bangafaka izinzwa zerotor ngayinye, kodwa nalokho bekungeke kwanele, kusho uChung. Isibonelo, indiza enama-rotor ayisishiyagalolunye izodinga izinzwa ezingaphezu kwesishiyagalolunye, njengoba i-rotor ngayinye ingase idinge inzwa eyodwa ukuze ibone ukwehluleka kwesakhiwo se-rotor, enye iqaphele uma injini yayo iyeka ukusebenza, futhi enye iqaphele lapho inkinga yezintambo zesignali. kwenzeka. UChung uthi: “Ekugcineni ungase ube nesimiso sezinzwa esisabalaliswe kakhulu, kodwa lokho kungaba eqolo, kube nzima ukuphatha, futhi kungandisa isisindo sendiza. Izinzwa ngokwazo nazo zingahluleka.
NgeNFFT, iqembu likaChung lihlongozile enye indlela, inoveli. Ukwakhela phezu imizamo edlule, ithimba lenze indlela yokufunda ejulile engagcini nje ngokusabela emimoyeni enamandla kodwa futhi ikwazi ukubona lapho indiza ihluleka khona. Uhlelo luhlanganisa inethiwekhi ye-neural eqeqeshwe kusengaphambili kudatha yendiza yempilo yangempela bese ifunda futhi ivumelane nezimo ngesikhathi sangempela ngokusekelwe enanini elilinganiselwe lamapharamitha ashintshayo, okuhlanganisa nesilinganiso sokuthi i-rotor ngayinye endizeni isebenza ngempumelelo kangakanani kunoma isiphi isikhathi. isikhathi.
“Lokhu akudingi izinzwa ezengeziwe noma i-hardware ukuze kutholwe amaphutha nokuhlonzwa,” kusho uChung. “Simane sibuka indlela indiza eziphatha ngayo—isimo sayo sengqondo nesimo sayo njengomsebenzi wesikhathi. Uma indiza ichezuka endaweni ebikuyo isuka ephuzwini A iye ku-B, i-NFFT ingabona ukuthi kukhona okungalungile futhi isebenzise ulwazi enalo ukunxephezela lelo phutha.”
Futhi ukulungiswa kwenzeka ngokushesha okukhulu—ngaphansi kwesekhondi. “Uma undiza endizeni, ungawuzwa ngempela umehluko owenziwa yi-NFFT ekugcineni ukulawuleka kwendiza lapho injini yehluleka,” kusho u-Staff Scientist u-Matthew Anderson, umbhali ephepheni nomshayeli wendiza owasiza ekuhloleni indiza. "Ukuhlelwa kabusha kokulawula kwesikhathi sangempela kwenza kuzwakale sengathi akukho okushintshile, nakuba usanda kuthola enye yamamotho akho engasebenzi."
Sethula izinzwa ezibonakalayo
Indlela ye-NFFT incike kumasiginali okulawula isikhathi sangempela nama-algorithms ukuze kutholwe lapho ukwehluleka kukuphi, ngakho u-Chung uthi inganikeza noma yiluphi uhlobo lwemoto izinzwa ezibonakalayo zamahhala ukuze kutholwe izinkinga. Ithimba liye lahlola ngokuyinhloko indlela yokulawula ezimotweni zasemoyeni ezizithuthukisayo, okuhlanganisa i-Autonomous Flying Ambulance, imoto kagesi eyingxube eklanyelwe ukuthutha abantu abalimele noma abagulayo ngokushesha ibayise ezibhedlela. Kodwa iqembu likaChung lihlole indlela efanayo yokubekezelela amaphutha ezimotweni ezingaphansi komhlaba futhi linezinhlelo zokusebenzisa i-NFFT ezikebheni.
Ibhalwe nguKimm Fesenmaier
Source: UCaltech
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