Technology Li-Fi (super-fast LED Internet): Isishwankathelo, inkcazelo, isixhobo kunye namathemba

Li-Fi - iteknoloji entsha transfer data ukuba kuza kuyitshintsha ishishini kwixesha elizayo, ukudala amathuba ilungele ukusetyenziswa namhlanje, kwaye ilungiselela ukuba ishishini elenza izigidi ngezigidi zeerandi ngo 2022. kokuba Kungoku kuphuhliswa ukuphumeza isantya 1Gbit / s, nto leyo eya Zizigqithile ukusebenza broadband superfast.

ulwazi ukukhanya

Igama elithi Li-Fi yaqanjwa uNjingalwazi Haraldom Haasom kwaye kubonisa indlela losasazo inkcazelo ngokusebenzisa ukukhanya olwenza-high speed yonxibelelwano bi-owenza mobile, ezifana Wi-Fi. Ingasetyenziswa ngenxa ukothula kothungelwano ezikhoyo ukusebenza kwi amaza erediyo, ngokunjalo ukuze kwandiswe umthamo wazo.

Kuba uqhagamshelo ultra-fast esebenzisa inxalenye ebonakalayo spectrum electromagnetic. Oku yenza umahluko lo iteknoloji esuka ifomu esekwe kakuhle zonxibelelwano engenazingcingo njengoko Wi-Fi, xa rhoqo zemveli ezibandakanyekayo.

I-Li-Fi data ethunyelwayo modulated ukukhanya wafumana photodetector kwaye iguqulelwa uphawu zombane. Awunandaba lwenziwa ngendlela yokuba Iliso lomntu angagqali.

Technology Li-Fi-high speed yonxibelelwano ezamehlo ibhekisa kudidi yonxibelelwano engenazingcingo, nto leyo ukongeza ekukhanyeni ebonakalayo, kuquka infrared kunye eyingozi. yokuvelela yayo siyifumana ukusetyenziswa kwenkqubo izibane ekhoyo.

Li Fi - Internet Superfast LED

Xa ngoku ngqo inikezelwa LED-isibane, ikhala ngendlela uthotho photons yokukhanya okubonakalayo. Ngokunciphisa okanye ukunyusa njengokukhazimla yangoku nayo itshintshayo. Ekubeni-izibane LED zizixhobo semiconductor, ibe ngoku, yaye ngenxa yoko, imveliso woqondo nga modulated ngesantya esiphezulu kakhulu. Inoku yamkela photodetector zaguqulwa emva ibe ombane. kwezwi Brightness kukuba imperceptible emehlweni oluntu kwaye nje elula radio. Esebenzisa le ndlela, i isibane LED ekwaziyo amaza iinkcukacha ngesantya esiphezulu.

unxibelelwano RF ufuna busebenze, eriyali kunye balwamkele ezintsonkothileyo, ngoxa Li-Fi-iteknoloji lula kakhulu. Lisebenzisa ubuchule kwezwi ngqo, afana nalawo inxaxheba zexabiso eliphantsi izixhobo zonxibelelwano infrared - izilawuli kude. Ukusetyenziswa konxibelelwano infrared kulinganiselwe ngenxa yeemfuneko ukhuseleko zempilo imigangatho iliso lo gama i-izibane LED babe kwelona nqanaba eliphezulu ngokuvutha kwaye ubonise ngesantya esiphezulu.

Ukukhanya okanye kwirediyo?

Li-Fi siwutshintshe isibane lube zokungena yi umzekeliso le zendlela Wi-Fi.

Xa unxibelelwano eqhelekileyo usebenzisa amaza erediyo, kodwa inani labo linqongophele kakhulu. Devices - iikhompyutha, laptops, abashicileli, nomabonakude smart, Smartphones kunye tablets - kufuneka bakhuphisane ukuze bandwidth. Ukuvela izinto ngakumbi nangakumbi, esebenzisa Wi-Fi, umzekelo, iifriji, iiwotshi, iikhamera, cell phones, ekubeni kubekho ulibaziseko kwaye sehlise izinga data. technology Li-Fi-frequency isebenzisa amaza okukhanya, leyo 10 000 amaxesha ngaphezu amaza omoya erediyo.

amaza erediyo ukudala uphazamiseko magnetic ezingenelela izixhobo moya kunye nezixhobo, isibhedlele ngokwenza kumashishini ezifana amandla enyukliya, ioli ukubhola kunye nemithombo negesi. Li-Fi isebenzisa ukukhanya, ikhuseleke kwaye ongavelisi uphazamiseko electromagnetic.

Kwathi amaza erediyo kwiindonga nakwiisilingi. Ukukhanya akunjalo. Nguwo lo ke umahluko phakathi wokhuseleko data Wi-Fi kunye Li-Fi. Hacker, ngaphandle izityalo, nako ukudibanisa unomathotholo ngaphakathi. Idatha ezidluliselwa kwi Li-Fi, kukho ifumaneka kuphela apho ukukhanya kukhanya.

Standard Wi-Fi 802.11a / g inika ngesantya zothumelo ukuya ku 54 Mbit / s, yaye eli xabiso angandiswa ukuya ku-1 Gbit / s. The University of Edinburgh sele ifikelele 3 Gb / s kwi ezinombala ofanayo. A umbala epheleleyo RGB-LED usenokulosulela ukuya ku-9 Gbit / s.

Internet kwezibane Li-Fi

Uphuhliso obu bugcisa negalelo ukunyuka okukhulu ukusetyenziswa LED kwiinjongo ukukhanyisa.

Li-Fi lo zivunywa ividiyo nokulanda audio, iziganeko ubomi, njalo njalo .. Le misebenzi yenza neemfuno phezulu kwi bandwidth input imijelo, kodwa zifuna igunya ubuncinane ephumayo. Ngenxa yoko, ukuba sikhululwe inkoliso yezithuthi Internet ndlela sokuquqa kwerediyo ezikhoyo, nokwandisa amathuba of mobile kunye Wi-Fi.

Internet Light Li-Fi isetyenziswa ezahlukeneyo kwiindawo:

• Ukukhululwa of amaza erediyo: eselula imithwalo kwincopho nga enokusetyenziswa itshintshelwe Li-Fi. Oku kusebenza ngokukodwa amajelo onxibelelwano igalelo apho imiqobo zenzeka qho.
• Izibane Smart: naliphi Izibane labucala okanye loluntu, kubandakanywa izibane ezitalatweni, ingasetyenziswa ngokwamanqaku ukufikelela Li-Fi, kunye nezibonelelo enye, kuthetha zonxibelelwano kwaye utsale abenzi.
• uqhagamshelo Mobile: laptops, iifowuni, amacwecwe kunye nezinye izixhobo mobile ngqo elidityaniswe kusetyenziswa Li-Fi. Ukuhamba umgama inikeza obalaseleyo kunye nonxibelelwano ezikhuselweyo.
• imveliso enobungozi: Li-Fi-technology na imveliso engenye ekhuselekileyo kuphazamiseko magnetic ukusuka unxibelelwano sokuquqa kwerediyo kwi izinto ezifana emigodini, izityalo petrochemical.
• Medicine kunye nempilo: ukukhanya ongavelisi uphazamiseko magnetic, yaye ngenxa yoko akuyiphazamisi ngezixhobo zonyango, yaye ingenathamsanqa lakufumana MRI.
• Aviation: Li-Fi enokusetyenziselwa ukwehla kobunzima, ukunciphisa ubude iintambo kunye libhetyebhetye kwi yokubekwa kwizihlalo izixhobo gumbi umkhweli apho olufakwe kwi-izibane LED. inkqubo ukuzonwabisa ababekhwele kweso ukukwazi ukugcina ukusebenzisana kunye nezixhobo mobile zabakhweli.
• Unxibelelwano phantsi kwamanzi; ngenxa ukufunxeka elinqatyisiweyo uphawu frequency ukusetyenziswa kwamanzi akunakwenzeka. Amaza Acoustic abe kwesilarha kakhulu kwaye ziphazamise nezilwanyana zaselwandle. Li-Fi-iteknoloji inika isisombululo for elifutshane uluhlu yonxibelelwano.
• Izithuthi kunye zokuhamba: headlamps sele kuveliswa, izibane nomsila, izibane ezitalatweni, iimpawu kunye iirobhothi ezisebenzisa LED-izibane. Oku kwenza ukuba unxibelelwano phakathi izithuthi kunye iziseko zendlela kwemisebenzi ukhuseleko kunye nolawulo lwezithuthi.
• Ngqo, iinkonzo ulwazi lendawo, ezifana izibhengezo kunye nokuhamba, nto leyo evumela ukufumana ezinye iinkcukacha ezinxulumene ne kwindawo ethile kunye nexesha.
• Zokudlala: LED zisetyenziswa zokudlala ezininzi enokusetyenziswa ngothungelwano zexabiso eliphantsi phakathi zokudlala interactive.

prototype Developer

Li-1 ivumela abaxumi ukuba zikhule ngokukhawuleza kwaye izicelo uvavanyo Li-Fi. Le fowuni ixhasa Unxibelelwano kabini ngokupheleleyo amandla 11.5 Mbit / s kumgama-3 m, lo gama ngokubonelela ukhanyiso olwaneleyo kwi desktop yakho. Ukusebenza umgama uxhomekeke kuphela ngamandla umthombo wokukhanya. Le fowuni ikunika uqhagamshelwano olukhuselekileyo elula uyimamele womnatha, zidibene ne-LED-izibane.

Li-1 yasungulwa njenge isiseko iiprojekthi eziqalayo, Li-Fi developers.

Into yokuqala yorhwebo

Li-Flame kwabonakala esidlangalaleni kwi-Mobile World Congress e Barcelona ngoMatshi 2016 isixhobo eso isizukulwana esizayo womnatha lokuqala-ngesantya esiphezulu yehlabathi esingenazingcingo ngokusekelwe ukukhanya okubonakalayo. Technology Li-Flame ixhasa kakhulu aphezulu mninzi data ngaphezu izisombululo best Wi-Fi, kwaye ikhona yokhuseleko yayo ukususa abazali angafuneki ngaphandle. Ukongeza, ukuhlanganiswa ukukhanya kunye izibonelelo zonxibelelwano wireless lula kakhulu yaye kunciphisa ukusetyenziswa kwamandla.

Li-Flame inikeza:

• unxibelelwano isiqingatha-kabini 10 Mbit / s kumgama-3 m kunye nezibane eqhelekileyo;
• nokuthwaleka ezipheleleyo (unit desktop ephathekayo ibhetri) ezinereyithi data eliphezulu ngenxa ufakelo oxineneyo APs Li-Fi;
• kukufumana unxibelelwano zintambo ngaphakathi gumbi, nto leyo ishenxisa ingozi uphawu ukuvuza;
• multi-umsebenzisi kwindawo yofikelelo, ngokubonelela bandwidth enkulu kumsebenzisi ngamnye;
• igciniwe unxibelelwano engenazingcingo kwiindawo apho amaza erediyo azithandeki okanye ayifikeleleki;
• nezimo kuyilo lothungelwano zonxibelelwano;
• nokwandisa iindidi izicelo yonxibelelwano wireless;
• yokonga ukukhanyisa kunye zonxibelelwano izixhobo ngenxa nokusetyenziswa izibonelelo elinye.

unit yophahla:

• Data namandla inikezelwa nge umgangatho Ethernet-port.
• ukufakwa lula.
• Elidityaniswe kuyo wasekhaya-isibane, iiseli atto-bokwakha.
• ukufikelela ezininzi.
• nqubo Ubuthelezi phakathi iindawo zokungena.

Unit Itheyibhile:

• Udibaniso ukuya isixhobo umxhasi nge-USB-port.
• 10 Mbit / s uplink kwinxalenye infrared yophahla.
• Ukujikajika intloko transceiver anokuthi alungi-lungiswe ngumsebenzisi.
• amandla ebhetri obukhulu.

Ekhule, incinane kwaye zikhuselwe kakhulu

LiFi-X uphuhliso lwenkqubo Li-Flame. It ikuvumela ukuba ngokwandisa kuthungelwano ngokupheleleyo yaye, ngokungafaniyo iimveliso ezikhoyo, ukuxhasa ufikelelo ezininzi, ukuzulazula, ukuhamba ngokupheleleyo, ukuba ukusebenzisa lula efanayo. Yohluka ukusuka kuguqulelo sangaphambili unxibelelwano ngokupheleleyo-kabini ngesantya-40 Mbit / s kuwo omabini ukushukumiseka ephumayo kunye nolwalathiso igalelo, kwaye olupheleleyo ezinikezelwa lalibekwa USB-station.

Indawo yofikelelo LiFi-X:

• Igunya phezu PoE okanye PLC.
• ukufakwa lula.
• Udibaniso ukuya LED-izibane ukwenza atto-cell.
• ukufikelela ezininzi.
• usuke Ubuthelezi phakathi iindawo zokungena.

station LiFi-X:

• USB 2.0.

iincwadi

Iincwadi zobuchwepheshe Li-Fi, nangona ubutsha balo, asinto ingaqhelekanga, ke, ngokuba becala ba iguqulelwe Russian. Nazi ezinye zazo:

• EArnon, Shlomi. unxibelelwano nokukhanya okubonakalayo. Cambridge, United Kingdom: Cambridge University Press, 2015. Printa.
• Dimitrov, Svilen, kunye uHarald Haas. Imithetho-siseko zonxibelelwano ukukhanya LED: ukuya kwi-networked Li-Fi. Cambridge: Cambridge University Press, 2015. Printa.
• Ghassemlooy, Zabih, W Popoola, kunye S Rajbhandari. inkqubo yonxibelelwano wireless Optical nomzila ngumzekelo kunye MATLAB. Boca Raton, FL: CRC Press, 2013. Printa.

Yeencwadi ifumaneka evenkileni online Amazon.