Ubuchwepheshe Li-Fi (eshesha LED Inthanethi): Uhlolojikelele, incazelo, kudivayisi namathemba

Li-Fi - entsha ukudluliswa kwedatha ubuchwepheshe ukuthi zizoguqula ibhizinisi esikhathini esizayo, ukudala amathuba alungele ukusetshenziswa namuhla, futhi kulungiselela ube eyenza izigidi zamaRandi ngo 2022. Okwamanje isakhiwa ukufeza ijubane 1Gbit / s, okuzokwenza adlula ukusebenza kwe-broadband superfast.

Imininingwane ukukhanya

Igama elithi Li-Fi yasungulwa uProfesa Haraldom Haasom futhi libhekisela indlela ukusakaza ulwazi usebenzisa ukukhanya eyenza ngesivinini bi Ohlangothi ukuxhumana mobile, njenge-Wi-Fi. Ingasetshenziselwa ngoba athula amanethiwekhi ezikhona ukusebenza emsakazweni amaza, kanye ukwandisa umthamo wabo.

Uxhumano ultra-fast usebenzisa ingxenye ebonakalayo bohlu kagesi. Lokhu okuhlukanisa lobu buchwepheshe kusukela ifomu ezimisiwe yokuxhumana engenantambo ne-Wi-Fi, imvamisa bendabuko abathintekayo.

Idatha Li-Fi idluliselwa modulated umfutho ukukhanya wathola photodetector futhi iguqulwe ibe uphawu lukagesi. Ukushintshashintsha wenziwa ngendlela yokuthi iso womuntu akusho bayibheka.

Ubuchwepheshe Li-Fi ngesivinini ukuxhumana optical libhekisela esigabeni ukuxhumana okungenantambo, okuyinto ngaphezu ukukhanya ebonakalayo, kuhlanganise infrared kanye ultraviolet. ehlukile yayo itholakala ukusetshenziswa ukukhanyisa ohlelweni olukhona.

Li Fi - Inthanethi superfast LED

Lapho zamanje ngqo ihlinzekwa ukuba LED-isibani, lukhipha nohide izinhlayiyana eziningi zokukhanya yokukhanya ebonakalayo. Ngokunciphisa noma okwandisa ukukhaya zamanje futhi sishintsha. Kusukela LED-izibani amadivayisi Semiconductor, a samanje, futhi ngenxa yalokho, okukhiphayo optical kungenziwa modulated ngesivinini kakhulu. Kungase kube bamukela photodetector futhi iguqulwe emuva ku-i-zamanje kagesi. Ukushintshashintsha kwezwi Ukugqama kuyinto imperceptible ukuba iso womuntu futhi njengoba elula njengoba umsakazo. Ukusebenzisa ithekhniki le, ngesibani LED uyakwazi ngokudlulisa ulwazi ngesivinini.

RF zokuxhumana kudinga busebenze, antenna kanye abamukelayo eziyinkimbinkimbi, kuyilapho Li-Fi ubuchwepheshe lula kakhulu. Isebenzisa amasu ngqo bashintshashintshe izwi, bahlabe ezifana ababehumusha eziphansi infrared amadivayisi zokuxhumana - izilawuli kude. Ukusetshenziswa zokuxhumana infrared kukhawulwe ngenxa nezidingo zokuphepha impilo amazinga iso kuyilapho LED-izibani abe umfutho eliphezulu ukuvutha futhi ubonise ngejubane elikhulu.

Khanyisa noma umsakazo?

Li-Fi ungavula isibani ibe zokungena iphuzu by Isifaniso ne-router-Wi-Fi.

Esikhathini zokuxhumana ezivamile usebenzisa umsakazo amaza, kodwa isibalo sabo sincane kakhulu. Amadivayisi - computer, laptops, abanyathelisi, nama-smart TV, Smartphones kanye amaphilisi - kumele ezidla -bandwidth. Ukuvela izinto ezengeziwe, usebenzisa i-Wi-Fi, isibonelo, amafriji, amawashi, amakhamera, omakhal 'ekhukhwini, kuyimbangela kokulibala futhi kunganciphisa izinga idatha. Li-Fi imvamisa ubuchwepheshe osebenzisa amaza ukukhanya, okuyizinto 10 000 izikhathi mkhulu kunezinhliziyo imvamisa radio.

amagagasi omsakazo ukudala ukuphazamiseka kagesi eziphazamisa amathuluzi izindiza kanye nemishini, esibhedlela futhi yingozi ezimbonini ezifana namandla enuzi, uwoyela imishini kanye negesi imithombo. Li-Fi isebenzisa ukukhanya, intrinsically ephephile futhi akusho ukukhiqiza ukuphazamiseka kagesi.

ukudlula amagagasi Radio ngokusebenzisa izindonga ophahleni. Khanyisa asipheli. Lena umehluko phakathi yokuvikela idatha Wi-Fi kanye Li-Fi. Hacker, ngaphandle isitshalo, akwazi ukuxhuma emsakazweni ngaphakathi. Idatha idluliselwa ku Li-Fi, lapho itholakala kuphela lapho ukukhanya kukhanya.

Standard-Wi-Fi 802.11a / g inikeza ukudluliswa ngesivinini kuze kufinyelele 54 Mbit / s, futhi leli nani zingandiswa engafinyelela kwengu-1 Gbit / s. I-University of Edinburgh Usufike kakade 3 GB / s ezinombala ofanayo. Umbala ogcwele RGB-LED bangadlulisela-9 Gbit / s.

Inthanethi ama Li-Fi

Ukuthuthukiswa lobu buchwepheshe nomthelela waba ukwanda okukhulu kwezincwadi ukusetshenziswa LED ukukhanyisa izinhloso.

Li-Fi inikwe okungcono ukuhanjwa isiqophi nokulanda alalelwayo, imicimbi bukhoma, nokunye .. Lezi imisebenzi izimfuno phezulu bandwidth iziteshi okufakwayo, kodwa zidinga okungenani amandla noma aphumayo. Ngakho-ke, yakhulula iningi traffic Inthanethi iziteshi ekhona omsakazo, ukwandisa amathuba yeselula ne-Wi-Fi.

Khanyisa Inthanethi Li-Fi isetshenziswa ezihlukahlukene ezindaweni:

• Ngeqadi umsakazo amaza: amanethiwekhi amaselula isiqongo imithwalo kungenziwa wawugxilisa Li-Fi. Lokhu kuphumelela nakakhulu phezu imigudu yokuxhumana okokufaka lapho netivimba zenzeka njalo kakhulu.
• Smart ukukhanyisa: iyiphi ukukhanyisa lesiyenta sisodvwa nobe embikwebantfu, kuhlanganise izibani emgwaqweni, ingasetshenziswa njengendlela zokungena Li-Fi, ne kungqalasizinda efanayo, izindlela zokuxhumana kanye izinzwa.
• uxhumano Ucingo: laptops, Smartphones, amaphilisi kanye nezinye zamadivayisi eselula zingahle ngqo exhunywe usebenzisa Li-Fi. Ukuhamba ibanga inikeza esihle kanye nokuxhumana evikelwe.
• ukukhiqizwa Kuyingozi: Li-Fi ubuchwepheshe kuyindlela ephephile sokungahloniphi kagesi kusukela omsakazo zokuxhumana ku izinto ezifana ezimayini, izitshalo Petrochemical.
• Medicine nempilo: ukukhanya asisho ukukhiqiza ukuphazamiseka kagesi, futhi ngenxa yalokho kungaphazamisi imishini kwezokwelapha, futhi bangaveziwe MRI scanner.
• Aviation: Li-Fi ingasetshenziswa kwesisindo, ukunciphisa ubude wiring futhi ngakhula eguquguqukayo ukubekwa kwakubusa imishini egumbini umgibeli lapho LED-izibani isifakiwe. ukuzijabulisa uhlelo ebhodini ikhono alondoloze futhi uxhumana kumadivayisi eselula abagibeli.
• Ukuxhumana ngaphansi kwamanzi: ngenxa ukumuncwa okunamandla isignali imvamisa ukusetshenziswa ngokuphelele emanzini yiyona engeke asebenze. amagagasi Acoustic abe throughput aphansi kakhulu futhi ziphazamise ezincelisayo zasolwandle. Li-Fi ubuchwepheshe inikeza isixazululo short-range zokuxhumana.
• Izimoto kanye zokuhamba: headlamps ekhiqizwa kakade, izibani umsila, izibani emgwaqweni, izimpawu kanye amarobhothi ezisebenzisa LED-izibani. Lokhu kunika amandla ukuxhumana phakathi izimoto kanye nengqalasizinda yemigwaqo izinhlelo zokuphepha nokuphatha traffic.
• Hle, amasevisi ulwazi lendawo, ezifana ukukhangisa kanye navigation, okuvumela ukuthola ulwazi oluphathelene ne endaweni ethile kanye nesikhathi.
• Amathoyizi: LED asetshenziswa amathoyizi amaningi ukuthi ingasetshenziswa eziphansi ukuxhumana phakathi amathoyizi interactive.

prototype Unjiniyela

Li-1st ivumela amakhasimende ngokushesha ukuthuthukisa futhi izicelo ukuhlolwa Li-Fi. Idivayisi isekela zokuxhumana Duplex ugcwele nomthamo 11.5 Mbit / s at ibanga 3 m, kuyilapho sihlinzeka ukukhanyisa ezanele kwi-desktop yakho. Ukusebenza ibanga kuncike kuphela amandla umthombo wokukhanya. Idivayisi inikeza elula ukuxhumana okuphephile okungenawaya inethiwekhi, kuhlangene LED-izibani.

Li-1st yasungulwa ngenxa isizinda yamaphrojekthi umshayeli, Li-Fi onjiniyela.

Umkhiqizo wokuqala commercial

Li-Flame kwaboniswa esidlangalaleni ngesikhathi Hambayo World Congress Barcelona ngoMashi 2016. Idivayisi limelela isizukulwane esilandelayo ngesivinini inethiwekhi wireless wokuqala emhlabeni esekelwe ukukhanya ebonakalayo. Ubuchwepheshe Li-Flame isekela siphezulu idatha kwabantu ngaphandle izixazululo engcono-Wi-Fi, futhi esingokwemvelo yayo Ukulondeka ukususa nsada engafuneki ngaphandle. Ngaphezu kwalokho, inhlanganisela ukukhanya nge zokuxhumana ezingenazo izintambo ingqalasizinda kube lula futhi kunciphisa amandla ukusetshenziswa.

Li-Flame inikeza:

• isigamu-Duplex zokuxhumana 10 Mbit / s at ibanga 3 m ngezibani standard;
• ukuphatheka egcwele (ephathekayo ideskithophu iyunithi nge battery) nge high idatha isilinganiso ngenxa yokufaka aminyene APs Li-Fi;
• uvikelekile ukuxhumana okungenantambo ngaphakathi egumbini, okwenza kungabi ingozi isignali ukuvuza;
• multi-umsebenzisi yokufinyelela, ukuhlinzeka i-bandwidth enkulu somsebenzisi ngamunye;
• uvikelekile imishini yezokuxhumana engenazo izintambo ezindaweni lapho umsakazo amaza azithandeki noma akutholakali;
• Ukuzivumelanisa nezimo ekuklanyweni amanethiwekhi zokuxhumana;
• ekwandiseni uhla engenantambo ukuxhumana izicelo;
• ukonga ukukhanyisa kanye nezokuxhumana imishini ngenxa ukusetshenziswa ingqalasizinda eyodwa.

Ceiling iyunithi:

• Idatha namandla ihlinzekwa nge standard-Ethernet-port.
• Ukufaka okulula.
• It ixhunywe LED-isibani, amaseli atto ukwakha.
• ukufinyelela amaningi.
• inguqulelo Smooth phakathi zokungena.

Ithebula Unit:

• Ukuxhuma kudivayisi iklayenti nge-USB-port.
• 10 Mbit / s uplink kungxenye infrared ye ophahleni.
• Swivel ikhanda transceiver kungase kushintshwe ngumsebenzisi.
• amandla webhethri obukhulu.

Indlela esheshayo, encane kunazo zonke futhi evikelwe kakhulu

LiFi-X ukuthuthukiswa Li-Flame uhlelo. It ikuvumela ukuba phaka inethiwekhi okugcwele, ngokungafani imikhiqizo ekhona, ukusekela ukufinyelela amaningi, uzulazula, angahlali ngokugcwele, okulula efanayo ukusebenzisa. Uhluka isihumusho ukuxhumana-Duplex egcwele ngesivinini 40 Mbit / s kokubili ukuhamba eziphumayo isiqondiso okokufaka, nokuphelele olunikezwa ephathekayo ye-USB esiteshini.

I yokufinyelela LiFi-X:

• Amandla phezu Poe noma PLC.
• Ukufaka okulula.
• Ukuxhumeka LED-izibani ukwakha atto-cell.
• ukufinyelela amaningi.
• usuke Smooth phakathi zokungena.

LiFi-X siteshi:

• USB 2.0.

izincwadi

Izincwadi kobuchwepheshe Li-Fi, naphezu eseyintsha yayo, akuyona into engavamile, Nokho, ingxenye enkulu kungukuthi zihunyushelwe Russian. Nazi ezinye zazo:

• Arinoni, Shlomi. Kubonakala ukuxhumana ukukhanya. Cambridge, United Kingdom: Cambridge University Press, 2015. Phrinta.
• Dimitrov, Svilen, futhi 'uHarald Haas. Izimiso zokuxhumana LED: maqondana kwenethiwekhi Li-Fi. Cambridge: Cambridge University Press, 2015. Phrinta.
• Ghassemlooy, Zabih, W Popoola, futhi S Rajbhandari. Optical uhlelo ukuxhumana okungenantambo nesiteshi ukumodeliswa nge MATLAB. Boca Raton, FL: CRC Cindezela, 2013. Phrinta.

Izincwadi ziyatholakala esitolo inthanethi Amazon.