Ukuxhumana kwe-NB IoT kwemitha yamanzi ye-ultrasonic kusetshenziswa ngokusekelwe ekwakhiweni kwephayiphi yamafu kusukela ekuqaleni kuya ekugcineni. Yonke inqubo ihlanganisa izinyathelo ezine ezibalulekile:
1. Ukulinganisa ohlangothini lwetheminali kanye nokuqoqwa kwedatha
Imitha yamanzi ye-ultrasonic isebenzisa indlela yokwehluka kwesikhathi (i-ToF) ukukala ukugeleza: ama-transducer amabili e-ultrasonic adlulisa futhi amukele izimpawu ngokushintshana. Izinga lokugeleza libalwa ngokulinganisa umehluko wesikhathi phakathi kokusabalala kwe-up and downstream. I-MCU iqoqa idatha yokugeleza, yenza isinxephezelo sokushisa, futhi iyigcine endaweni.
2. Ukufinyelela kwenethiwekhi ye-NB‑IoT kanye nokudluliswa kwedatha
Imojuli ye-NB IoT eyakhelwe ngaphakathi (isb., BC95, A7670) ivuswa yi-RTC timer. Iqala ukufinyelela kwenethiwekhi ngemiyalo ye-AT, iqedele ukuqinisekiswa komqhubi, futhi isungula uxhumano. Idatha ipakishwa ngefomethi ejwayelekile (isb., TLV/Binary) ene-ID yedivayisi, isitembu sesikhathi, ukugeleza, kanye nesimo sebhethri, bese idluliselwa kusetshenziswa amaphrothokholi afana ne-CoAP/MQTT.
3. Ukudluliselwa kwesendlalelo senethiwekhi kanye nokuphepha
Idatha idlula esiteshini sesisekelo se-NB‑IoT → inethiwekhi eyinhloko → ipulatifomu ye-IoT (isb., i-OneNET). Ukudluliselwa kuvikelwe ngokubethela kwe-DTLS kanye nokuqinisekiswa kobunikazi bedivayisi ukuvimbela ukuphazamiseka nokulalela.
4. Ukusetshenziswa kweplatifomu ohlangothini kanye nokulawula okubili
Ipulatifomu yokusetshenziswa kwamanzi ihlaziya futhi igcine idatha, ivumela ukufunda kude, ukukhokhisa, ukutholwa kokuvuza, kanye nokulawula ivalvu. Ipulatifomu ingakhipha imiyalo (isb., ukufunda amapharamitha, ukuvula/ukuvala ivalvu) kumitha, eyisebenzisayo futhi ibuyise imiphumela ngenethiwekhi ye-NB‑IoT.
Izindlela ezibalulekile zamandla aphansi:
I-PSM (Imodi Yokonga Amandla): Ingena ebuthongweni obukhulu ngemva kokudluliselwa, kanti amandla kagesi aphansi njengeleveli ye-μA.
I-eDRX: Yandisa ukwamukelwa okungaguquki ukuze ilinganisele ukubambezeleka kanye nokusetshenziswa kwamandla.
Ukusetshenziswa kwamandla okuxhumanisa okuvamile kwansuku zonke kungu-~18.7 mJ, okuvumela impilo yebhethri yeminyaka engu-8-10.
Isikhathi sokuthunyelwe: Ephreli-21-2026