I-Anemometer ye-Ultrasonic

Iziteshi zesimo sezulu ziyiphrojekthi edumile yokuhlola izinzwa ezihlukahlukene zemvelo, futhi inkomishi elula ye-anemometer kanye ne-vane yesimo sezulu kuvame ukukhethwa ukuze kunqunywe isivinini somoya nendawo.Nge-QingStation ka-Jianjia Ma, unqume ukwakha uhlobo oluhlukile lwenzwa yomoya: i-anemometer ye-ultrasonic.
Ama-anemometers e-Ultrasonic awanazo izingxenye ezihambayo, kodwa ukuhweba kuwukukhuphuka okuphawulekayo kobunzima be-elekthronikhi.Basebenza ngokulinganisa isikhathi esisithathayo ukuze ukushaya kwenhliziyo kwe-ultrasonic kubonakale kumamukeli ebangeni elaziwayo.Isiqondiso somoya singabalwa ngokuthatha ukufundwa kwesivinini kusuka kumapheya amabili ezinzwa ze-ultrasonic perpendicular to another kanye nokusebenzisa i-trigonometry elula.Ukusebenza kahle kwe-anemometer ye-ultrasonic kudinga ukuklanywa ngokucophelela kwe-analog amplifier ekugcineni kokwamukela kanye nokucutshungulwa kwesignali okubanzi ukuze kukhishwe isignali elungile kuma-echoes yesibili, ukusakazeka kwe-multipath, nawo wonke umsindo obangelwa indawo ezungezile.Ukuklama kanye nezinqubo zokuhlola zibhalwe kahle.Njengoba [uJianjia] engakwazi ukusebenzisa umhubhe womoya ukuze ahlole futhi alinganise, wafaka i-anemometer okwesikhashana ophahleni lwemoto yakhe wayesehamba.Inani eliwumphumela lilingana nejubane le-GPS lemoto, kodwa lingaphezulu kancane.Lokhu kungase kube ngenxa yamaphutha ezibalo noma izici zangaphandle ezifana nokuphazamiseka komoya noma ukugeleza komoya okuvela emotweni yokuhlola noma okunye ukugcwala komgwaqo.
Ezinye izinzwa zihlanganisa izinzwa zemvula ezibonakalayo, izinzwa zokukhanya, izinzwa zokukhanya kanye ne-BME280 yokukala umfutho womoya, umswakama kanye nezinga lokushisa.U-Jianjia uhlela ukusebenzisa i-QingStation esikebheni esizimele, ngakho ubuye wengeza i-IMU, ikhampasi, i-GPS, nemakrofoni yomsindo we-ambient.
Ngenxa yenqubekelaphambili kuzinzwa, izinto zikagesi, nobuchwepheshe be-prototyping, ukwakha isiteshi sesimo sezulu somuntu siqu kulula kunangaphambili.Ukutholakala kwamamojula enethiwekhi angabizi kakhulu kusivumela ukuthi siqinisekise ukuthi lezi zixhobo ze-IoT zingadlulisela ulwazi lwazo kusizindalwazi somphakathi, zinikeze imiphakathi yasendaweni idatha efanele yesimo sezulu endaweni eyizungezile.
UManolis Nikiforakis uzama ukwakha Iphiramidi Yesimo Sezulu, idivayisi yokulinganisa isimo sezulu esizinzile, engenawo ukunakekelwa, amandla kanye nezokuxhumana-ezizimele eziklanyelwe ukusetshenziswa ngezinga elikhulu.Ngokuvamile, iziteshi zesimo sezulu zifakwe izinzwa ezikala izinga lokushisa, ingcindezi, umswakama, isivinini somoya kanye nemvula.Nakuba iningi lala mapharamitha lingalinganiswa kusetshenziswa izinzwa zesimo esiqinile, ukucacisa isivinini somoya, isiqondiso, kanye nemvula ngokuvamile kudinga uhlobo oluthile lwedivayisi kagesi.
Ukwakhiwa kwezinzwa ezinjalo kuyinkimbinkimbi futhi kuyinselele.Lapho uhlela ukuthunyelwa okukhulu, udinga futhi ukuqinisekisa ukuthi kubiza izindleko, kulula ukuzifaka, futhi akudingi ukulungiswa njalo.Ukuqeda zonke lezi zinkinga kungaholela ekwakhiweni kweziteshi zezulu ezinokwethenjelwa nezingabizi kakhulu, ezingase zifakwe ngobuningi ezindaweni ezikude.
UManolis unemibono ethile yokuthi zingaxazulula kanjani lezi zinkinga.Uhlela ukuthwebula isivinini somoya kanye nesiqondiso kusuka ku-accelerometer, i-gyroscope nekhampasi ku-inertial sensor unit (IMU) (mhlawumbe i-MPU-9150).Uhlelo luwukulandelela ukunyakaza kwenzwa ye-IMU njengoba inyakaza ngokukhululeka kukhebula, njenge-pendulum.Wenze izibalo ezithile ku-napkin futhi ubonakala eqiniseka ukuthi bazonikeza imiphumela ayidingayo lapho ehlola i-prototype.Inzwa yokuna kwemvula izokwenziwa kusetshenziswa izinzwa ezinamandla kusetshenziswa inzwa ezinikele njenge-MPR121 noma umsebenzi wokuthinta owakhelwe ngaphakathi ku-ESP32.Idizayini nendawo yamathrekhi e-electrode kubaluleke kakhulu ekukaleni imvula ngendlela efanele ngokuthola amathonsi emvula.Usayizi, umumo kanye nokusatshalaliswa kwesisindo sezindlu lapho inzwa ifakwe khona nakho kubalulekile njengoba kuthinta ububanzi, ukulungiswa kanye nokunemba kwethuluzi.UManolis usebenza emibonweni eminingi yokuklama ahlela ukuyizama ngaphambi kokunquma ukuthi isiteshi sezulu sonke sizoba ngaphakathi kwezindlu eziphendukayo noma izinzwa ezingaphakathi.
Ngenxa yesithakazelo sakhe kusayensi yesimo sezulu, [uKarl] wakha isiteshi sesimo sezulu.Esisha kunazo zonke kulezi inzwa yomoya ye-ultrasonic, esebenzisa isikhathi sokundiza se-ultrasonic pulses ukuze inqume isivinini somoya.
Inzwa kaCarla isebenzisa ama-transducers amane e-ultrasonic, aqondiswe enyakatho, eningizimu, empumalanga nasentshonalanga, ukuze abone isivinini somoya.Ngokulinganisa isikhathi esithathayo ukuze i-ultrasonic pulse ihambe phakathi kwezinzwa ekamelweni futhi isuse izilinganiso zensimu, sithola isikhathi sokundiza ku-eksisi ngayinye ngakho-ke isivinini somoya.
Lokhu ukuboniswa okuhlaba umxhwele kwezixazululo zobunjiniyela, okuhambisana nombiko womklamo onemininingwane emangalisayo.