Tekeni yamakono yowonjezera imamangirira pazinthu za Wi-Fi kuti azifalitsa dala msanga
Li-Fi ndi njira yofalitsira uthenga mofulumira kwambiri. M'malo mogwiritsa ntchito mauthenga a pawailesi kuti mutumize uthenga - chomwe Wi-Fi imagwiritsa ntchito - Teknoloje ya Kukhulupirika Kwambiri, yomwe imatchedwa Li-Fi, imagwiritsa ntchito kuwala kowala.
Kodi Li-Fi Inapangidwa Liti?
Li-Fi inapangidwa ngati njira yowonjezera ku mafilimu a makina a ma radio (RF) . Monga malo osungira mauthenga opanda intaneti aphulika pa kutchuka, zakhala zovuta kwambiri kunyamula zida zambiri za deta pa chiwerengero chochepa cha ma radio frequency bands omwe alipo.
Harald Hass, wofufuza pa yunivesite ya Edinburgh (Scotland), adatchedwa Bambo wa Li-Fi chifukwa cha khama lake popititsa patsogolo lusoli. Nkhani yake ya TED mu 2011 inabweretsa polojekiti ya Li-Fi ndi Dunivesite ya Dunivesite kuti iwonetsere kwa nthawi yoyamba, kuitcha "deta kudzera."
Momwe Li-Fi ndi Kuwonekera Kuwala Kwachangu (VLC) Ntchito
Li-Fi ndi mawonekedwe a Visible Light Communication (VLC) . Kugwiritsa ntchito magetsi ngati zipangizo zoyankhulirana sizinthu zatsopano, kuyambira zaka zoposa 100. Ndi VLC, kusintha kwa kuunika kwa magetsi kungagwiritsidwe ntchito pofotokozera zidziwitso zosamalidwa.
Mafomu oyambirira a VLC amagwiritsa ntchito nyali zamagetsi zachilendo koma sakanatha kukwaniritsa kwambiri chiwerengero cha deta. Gulu logwira ntchito la IEEE 802.15.7 likupitirizabe kugwira ntchito pazitsamba za VLC.
Li-Fi amagwiritsa ntchito ma - white emitting-LED (LEDs) m'malo mwa mababu a mtundu wamtundu winawake kapena ma bulb. Li-Fi Intaneti imapangitsa kuti ma LED ayambe kuyenda mofulumira kwambiri (kuthamanga kwambiri kuti diso la munthu lizindikire) kutumiza deta, yomwe imakhala ndi code yovuta kwambiri.
Mofanana ndi Wi-Fi, ma intaneti a Li-Fi amafuna malo apadera opezeka a Li-Fi kuti athe kupanga magalimoto pakati pa zipangizo. Zipangizo zamakono ziyenera kumangidwa ndi adapala opanda waya a Li-Fi, mwina chipangizo chopangidwa ndi zipangizo zamakono kapena zipangizo zamakono.
Ubwino wa Li-Fi Technology ndi Internet
Mafilimu a Li-Fi amapewa kusokonezeka kwa maulendo a wailesi, kukambirana kofunika kwambiri m'mabanja monga kutchuka kwa intaneti za zinthu (IoT) ndi zipangizo zina zopanda zamakono zikupitiriza kuwonjezeka. Kuwonjezera apo, kuchuluka kwa mawonekedwe opanda waya (maulendo osiyanasiyana omwe alipo) ndi kuwala komwe kumawonekera kwambiri kuposa ma radio omwe amagwiritsidwa ntchito pa Wi-Fi - ziwerengero zomwe zimatchulidwa kawirikawiri zikwi khumi. Izi zikutanthauza kuti mafilimu a Li-Fi ayenera kuti amapindula kwambiri pa Wi-Fi omwe angathe kuthandizira kuti azitha kulumikizana ndi magalimoto ambiri.
Mafilimu a Li-Fi amamangidwa kuti athandizidwe ndi kuunika komwe kumaikidwa kale m'nyumba ndi nyumba zina, kuzipanga zotsika mtengo. Zimagwira ntchito ngati mapulogalamu omwe amagwiritsa ntchito mawonekedwe a kuwala omwe sangathe kuwona ndi maso a munthu, komabe Li-Fi sichimafuna kutulutsa kuwala kosiyana.
Chifukwa chakuti kutumiza kumeneku kuli kokha kumalo kumene kuwala kumatha kudutsa, Li-Fi amapereka mwayi wodzitetezera mwachilengedwe pa Wi-Fi kumene zizindikiro zosavuta (ndipo nthawi zambiri mwajambula) zimadutsa m'makoma ndi pansi.
Anthu omwe amakayikira za thanzi lakutalika kwa Wi-Fi kwa anthu adzalandira Li-Fi njira yosakondera.
Kodi Mwamsanga Ndi Li-Fi?
Mayesero a Lababu amasonyeza kuti Li-Fi ikhoza kugwiritsidwa ntchito mofulumira kwambiri; wina ayesa kuchuluka kwa 224 Gbps (gigabits, osati megabits). Ngakhale pamene zothandiza pa network protocol pamwamba (monga encryption ) zimaganiziridwa, Li-Fi ndi kwambiri, mofulumira kwambiri.
Nkhani ndi Li-Fi
Li-Fi sangathe kugwira ntchito kunja chifukwa cha kusokonezeka kwa dzuwa. Kugwirizana kwa Li-Fi sikungalowe mkati mwa makoma ndi zinthu zomwe zimatseka kuwala.
Wi-Fi imakhala yokondwera kwambiri ndi malo akuluakulu a nyumba ndi bizinesi padziko lonse lapansi. Kuonjezera pa zomwe Wi-Fi amapereka zimapatsa ogula chifukwa chomveka chokweza ndi kutsika mtengo. Zowonjezera zowonjezera zomwe ziyenera kuwonjezeredwa ku LED kuti ziwathandize kuyankhulana kwa Li-Fi ziyenera kulandiridwa ndi opanga babu opanga.
Ngakhale Li-FI atakhala ndi zotsatira zabwino kuchokera ku mayesero a labata, mwina pangakhale zaka zambiri kuti asakhale odziwika kwambiri kwa ogula.