Li-Fi (Lub Teeb Fidelity) yog lub xov tooj cua sib txuas lus high-speed wireless ua ntej tshaj tawm xyoo 2011 los ntawm tus kws tshawb fawb keeb kwm Harald Haas. Kev xa xov hauv wireless hauv tshuab Li-Fi wireless siv qhov chaw ntawm LED.
Li cas ntawm Li-Fi thiab Wi-nkaus?
Wi-Fi thev naus laus zis siv xov tooj cua mus xa cov ntaub ntawv. Txawm li cas los xij, muaj ntau dua thiab ntau cov neeg siv txhua txhua hnub, thiab muaj cov ntau zaus muaj tsawg dua, uas tsis ntev yuav ua rau muaj ntau yam kev cuam tshuam hauv kev sib txuas lus. Lub Li-Fi network tshiab siv cov pulses ntawm lub teeb nyob rau hauv qhov pom kev pom dhau los xa cov ntaub ntawv. Cov LED rau hauv lub teeb roj teeb cig rau thiab qhib kom nrawm rau tib neeg lub qhov muag tsis pom kev ntsais. Cov kws tshawb fawb pom tias hauv kev sim sim, qhov ceev nruab nrab ntawm Li-Fi yog li 100 zaus sai dua Wi-nkaus.
Li-Fi twb dhau los kuaj hauv chaw ua haujlwm thiab chaw soj nstuam hauv Tallinn, Shanghai thiab ntau lwm lub nroog.
Puas yuav Li-Fi thev naus laus zis los hloov nws cov neeg ua ntej?
Feem ntau tsis yog. Txawm hais tias cov ntaub ntawv hloov pauv ntawm qhov thev naus laus zis tshiab, nws yog, ntawm chav kawm, tsis tuaj yeem siv hauv qhov tsaus ntuj. Tsis tas li ntawd, kev ua haujlwm ntawm Li-Fi router tsis tuaj yeem mus dhau ib chav, yog li lub hauv paus yuav tsum muab nruab rau hauv txhua chav. Qhov twg yuav tsum muaj cov ntaub ntawv nrawm nrawm dua, piv txwv li, hauv chaw ua haujlwm, Li-Fi routers yuav raug ntsia. Nws yog qhov tsis yooj yim sua tias cov thev naus laus zis no yuav nrov hauv cov tsev thiab tsev. Yog li Li-Fi thiab Wi-nkaus yuav sib koom ua ke ntawm kev thaj yeeb nrog lwm tus, thiab cov xov tooj ntawm tes yuav hloov pauv mus los ntawm ib lub network mus rau lwm qhov.
