NB-IoT/LTE Cat1 Wireless Meter Reading Isixazululo

I. Uhlolojikelele Lwesistimu

II-HAC-NBh (NB-IoT)isistimu yokufunda imitha iyisixazululo esiphelele esisekelwe kubuchwepheshe benethiwekhi yendawo ebanzi enamandla aphansi Ye-inthanethi Yezinto yezinhlelo zokusebenza zokufunda amamitha akude ahlakaniphile anamandla aphansi.Isixazululo siqukethe iplathifomu yokulawula ukufundwa kwamamitha, i-RHU ephathwayo eseduze nesiphetho kanye nemojula yokuxhumana yetheminali.Imisebenzi yesistimu ihlanganisa ukutholwa nokulinganisa, ukuxhumana kwezindlela ezimbili, ivalvu yokulawula ukufundwa kwamamitha kanye nokugcinwa eduze kokuphela njll ukuze kuhlangatshezwane nezidingo zezinhlelo zokusebenza zokufunda amamitha akude.

II.Izingxenye Zesistimu

I-HAC-NBh (NB-IoT)isistimu yokufunda imitha eyihlane engenantambo ihlanganisa: imojuli yokufunda imitha engenantambo i-HAC-NBh, itheminali ephathwa ngesandla i-HAC-RHU-NB, isistimu yokufunda imitha ye-iHAC-NB (iseva ye-WEB).

● Imojula yokufunda imitha engenantambo ye-HAC-NBh enamandla aphansi: Ithumela idatha kanye ngosuku, isekela ukubika kwe-infrared noma ukubika kwe-trigger kazibuthe (ongakukhetha), futhi ihlanganisa ukutholwa, ukulinganisa kanye nokulawula amavalvu kumojula eyodwa.

● Itheminali ephathwayo ye-HAC-RHU-NB: Ukuqapha isignali ye-NB ekusayithi, ukunakekelwa okuseduze kwesisetshenziswa setheminali, ukulungiselelwa kwepharamitha.

● Inkundla yokushaja yokufunda imitha ye-iHAC-NB: Ingafakwa kunkundla yefu, inkundla inemisebenzi enamandla, futhi idatha enkulu ingasetshenziselwa ukuhlaziya ukuvuza.

III.Uhlelo lwe-Topology Diagram

IV.Izici Zesistimu

● Ukusetshenziswa kwamandla aphansi kakhulu: Ibhethri yohlobo lomthamo we-ER26500 ingafinyelela iminyaka engu-8.

● Ukufinyelela okulula: Asikho isidingo sokwakha kabusha inethiwekhi, ingasetshenziswa ngokuqondile ukusetshenziselwa ukuhweba nenethiwekhi ekhona yomsebenzisi;

● Umthamo omkhulu: Gcina idatha efriziwe yonyaka engu-10, idatha efriziwe yezinyanga eziyi-12 yezinyanga zonke, kanye nedatha efriziwe yezinsuku eziyi-180.

● Ukuxhumana kwezindlela ezimbili: Ukudlulisa okubili okukude nokufunda, kungakwazi futhi ukubona izilungiselelo zerimothi kanye nemingcele yemibuzo, ama-valve okulawula njll.

● Ukunakekelwa okuseduze: Ukunakekelwa okuseduze kungatholwa ngamathuluzi e-infrared, okuhlanganisa imisebenzi ekhethekile efana nokuthuthukiswa kwe-firmware.