Li-Fi fasahar (nafani Internet LED): Siffar, description, na'urar da al'amurra

Li-Fi - wani sabon canja wurin bayanai fasahar da za su canza yanayin rayuwan da kasuwanci a nan gaba, samar da damar cikakke ga amfani a yau, kuma yana shirya don zama wani multibillion-dollar masana'antu ta 2022. A halin yanzu ana ci gaba a cimma gudun 1Gbit / s, wanda zai fi kwaikwayon na superfast broadband.

bayanai haske

A lokaci Li-Fi da aka kirkiro da Farfesa Haraldom Haasom kuma suturta mutum Hanyar watsa bayanai ta amfani da hasken da ke sa high-gudun bi-directional mobile sadarwa, kamar Wi-Fi. Ana iya amfani da wa saukewa na data kasance networks aiki a rediyo mitoci, kazalika don su kara iya aiki.

Domin ultra-azumi dangane da yin amfani da sashen na electromagnetic bakan. Wannan banbanta tsakanin wannan fasahar daga wata rijiya-kafa nau'i na waya sadarwar kamar yadda Wi-Fi, a wani gargajiya mita da hannu.

A Li-Fi data yana daukar kwayar cutar modulated haske tsanani samu photodetector da kuma tuba a cikin wani sakonni. Daidaitowa aka yi a cikin irin wannan hanya da cewa mutum ido ba ya gane shi.

Technology Li-Fi high-gudun Tantancewar sadarwa yana nufin mara waya ta sadarwa category, wanda a Bugu da kari a bayyane haske, ciki har da infrared da ultraviolet. Its musamman da suka bambanta ta'allaka ne da yin amfani da data kasance lighting tsarin.

Li Fi - Superfast Internet LED

Lokacin kai tsaye halin yanzu ake kawota zuwa LED-fitilar, tana fitarda wani kwari rafi na photons na bayyane haske. By rage ko kara haske a halin yanzu kuma canza. Tun da LED-fitilu ne semiconductor na'urorin, a halin yanzu, ya kuma inganta, na gani fitarwa za a iya modulated a sosai high gudun. Yana iya soma wani photodetector da kuma tuba da baya cikin wani wutar lantarki. Haske daidaitowa ne imperceptible ga mutum ido da kuma shi ne kamar yadda ya dace kamar yadda rediyo. Amfani da wannan dabara, wani LED fitila iya yada bayanai a high gudun.

RF sadarwa na bukatar circuitry, antennas da hadaddun karba, yayin da Li-Fi-fasahar sauƙin. Yana amfani kai tsaye daidaitowa dabaru, kamar wadanda ke da hannu a low-cost infrared sadarwa na'urorin - m controls. A amfani da infrared sadarwar da aka iyakance saboda bukatun na kiwon lafiya aminci nagartacce ido yayin da LED-fitilu da babban tsanani na haske da kuma nuna babban gudun.

Light ko rediyo?

Li-Fi iya kunna fitilar a cikin wani mara waya damar nufi da misalin tare da na'ura mai ba da hanya tsakanin hanyoyin sadarwa ta Wi-Fi.

A al'ada sadarwa ta amfani da rediyo mitoci, amma da lambar shi ne mai iyaka. Na'urorin - kwakwalwa, kwamfyutocin, firintocinku, mai kaifin talabijin, wayoyin salula na zamani da Allunan - dole ne gasa ga bandwidth. Ana zargin more kuma mafi abubuwa, ta amfani da Wi-Fi, misali, refrigerators, Watches, kyamarori, cell phones, shi ne a hanyar da bata lokaci ba da kuma rage data kudi. Li-Fi-mita fasahar amfani da haske tãguwar ruwa, wadda ne 10 000 sau fi na mitar rediyo.

Igiyoyin rediyo haifar da electromagnetic kutse da cewa tsoma baki da jirgin sama kida da kayan aiki, asibiti da kuma yiwuwar hatsari a irin wannan masana'antu da makamashin nukiliya, hakowa da kuma man gas rijiyoyin. Li-Fi yana amfani da haske, faruwa lafiya da kuma ba ya nuna electromagnetic tsangwama.

Igiyoyin rediyo wuce ta hanyar ganuwar da ceilings. Light aikata ba. Wannan ne bambanci tsakanin data kariya Wi-Fi da kuma Li-Fi. Dan Dandatsa, a waje da shuka, iya haɗi zuwa rediyo a ciki. Data daukar kwayar cutar a kan Li-Fi, akwai kawai samuwa inda Haske na haskakawa.

Standard Wi-Fi 802.11a / g samar da watsa gudu up to 54 Mbit / s, kuma wannan darajar za a iya ƙara har zuwa 1 Gbit / s. Jami'ar Edinburgh sun riga ya kai 3 Gb / s, a monochrome. A cikakken launi RGB-LED iya aika zuwa 9 Gbit / s.

Internet na kwararan fitila Li-Fi

Development wannan fasahar da gudummawar da} aruwar yin amfani da LEDs ga lighting dalilai.

Li-Fi ne mafi kyau dace domin video da kuma audio downloads, live events, kuma haka a kan .. Wadannan ayyuka sa high bukatar a bandwidth na shigar da tashoshi, amma bukatar wani m fita iko. Saboda haka, shi warware mafi yawan Internet zirga-zirga na data kasance mitar rediyo tashoshi, fadada yiwuwa na mobile da Wi-Fi.

Light Internet Li-Fi da ake amfani a da dama yankunan:

• Kebewa na rediyo mitoci: cibiyoyin sadarwar salula ganiya lodi za a iya canja zuwa Li-Fi. Wannan shi ne musamman tasiri a kan shigar da sadarwa tashoshi inda bottlenecks faruwa mafi akai-akai.
• Smart lighting: wani kanmu ko ga jama'a lighting, ciki har da titi fitilu, za a iya amfani da damar da maki daga Li-Fi, da wannan kayayyakin more rayuwa, yana nufin na sadarwa da kuma masu auna sigina.
• Mobile dangane: kwamfyutocin, wayoyin salula na zamani, Allunan, kuma sauran hannu da na'urorin iya kai tsaye alaka ta amfani da Li-Fi. Tafiya nesa samar da kyau kwarai da kuma kare sadarwa.
• M samar: Li-Fi-fasahar ne mai hadari madadin zuwa electromagnetic tsangwama daga mitar rediyo sadarwa a kan irin wannan abubuwa a matsayin mahakar, petrochemical shuke-shuke.
• Medicine da kuma kiwon lafiya: hasken ba nuna electromagnetic tsangwama, sabili da haka ba ya tsoma baki da kayan aikin likitanci, da kuma ba su fallasa su MRI Scanners.
• Aviation: Li-Fi za a iya amfani ga nauyi asara, rage wayoyi tsawon kuma Ya ƙãra sassauci a cikin jeri na kujerun kayan aiki da fasinja daki inda LED-fitilu da aka shigar. nisha tsarin a kan jirgin ikon kula da hul] a da na'urorin hannu na fasinjoji.
• Sadarwa a karkashin ruwa: saboda da karfi sha na da sigina mita amfani a ruwa ne impractical. Kiya taguwar ruwa da sosai low kayan da aka samar da kuma ta da marine dabbobi masu shayarwa. Li-Fi-fasahar samar da wani bayani ga short-zangon sadarwa.
• Motoci da kuma sufuri: riga ta samar headlamps, danjojin, titi fitilu, da ãyõyinMu, kuma zirga-zirga hasken wuta da cewa amfani da LED-fitilu. Wannan damar sadarwa a tsakanin motoci da kuma hanyoyi, a cikin tsarin da aminci da kuma zirga-zirga management.
• Ainihin, wasu bayanai na gida ayyuka, kamar talla da kuma kewayawa, wanda damar samun bayanai hade da wani musamman wuri da kuma lokaci.
• Toys: LEDs ake amfani da su a da dama toys cewa za a iya amfani da shi don low-cost sadarwa tsakanin m toys.

samfur Developer

Li-1st damar abokan ciniki to hanzari ci gaba da gwajin aikace-aikace Li-Fi. The na'urar tana goyon bayan da cikakken Duplex sadarwar da damar 11.5 Mbit / s a nesa na 3 m, yayin da samar da isassun lighting a kan tebur. Aiki nesa shi ne dogara kawai a kan ƙarfi daga cikin haske Madogararsa. The na'urar yayi wani sauki kafaffen haɗi mara waya zuwa cibiyar sadarwa, haɗe shi da LED-fitilu.

Li-1st da aka kafa a matsayin tushe na matukin jirgi ayyukan, Li-Fi developers.

A farko kasuwanci samfurin

Li-Flame aka bayyane ya nuna a Mobile World Congress a Barcelona a watan Maris 2016. A na'urar wakiltar na gaba ƙarni na duniya na farko high-gudun mara waya cibiyar sadarwa dangane da bayyane haske. Technology Li-Flame goyon bayan muhimmanci mafi girma data yawa fiye da mafi kyau mafita Wi-Fi, da kuma ta muhimmi The tsaro cire maras so intrusion daga waje. Bugu da kari, da hade da haske da wani mara waya sadarwa na da muhimmanci simplifies da kuma rage ikon amfani.

Li-Flame samar da:

• rabin-Duplex sadarwa na 10 Mbit / s a nesa na 3 m da misali fitilu.
• full portability (šaukuwa tebur naúra da baturi) tare da babban data kudi saboda m shigarwa na APS Li-Fi.
• m mara waya ta sadarwa da a cikin dakin, abin da gusar da hadarin yayyo sigina.
• Multi-mai amfani da damar batu, samar da mafi bandwidth ga kowane mai amfani;
• m mara waya ta sadarwa a muhallin inda rediyo mitoci ne a ke so, ko ba samuwa.
• sassauci a cikin zane na sadarwa networks.
• fadada cikin kewayon mara waya ta sadarwa da aikace-aikace.
• tanadi a lighting da kuma harkokin sadarwa kayan aiki saboda da yin amfani da guda kayayyakin more rayuwa.

Rufi naúrar:

• Data kuma ikon da aka kawota via wani misali Ethernet-tashar jiragen ruwa.
• Easy kafuwa.
• Yana an haɗa zuwa LED-fitila, atto-kafa Kwayoyin.
• Mahara damar.
• Smooth mika mulki tsakanin damar maki.

Table Unit:

• Connection ga abokin ciniki na'urar via kebul-tashar jiragen ruwa.
• 10 Mbit / s uplink da infrared rabo daga rufi.
• Swivel shugaban transceiver za a iya gyara ta hanyar mai amfani.
• Wutar baturi kuma portability.

The fi sauri, karami, kuma mafi kare

LiFi-X ne da ci gaban kasar Sin Li-Flame tsarin. Yana ba ka damar tura cikakken cibiyar sadarwa da kuma, sabanin data kasance kayayyakin, da goyon bayan da mahara damar, ana yawo, da cikakken motsi, to wannan mai sauki don amfani. Ya bambanta daga baya version of cikakken-Duplex sadarwa a gudun 40 Mbit / s, a duka biyu da fita da shigar da shugabanci, da kuma cikakken motsi bayar da šaukuwa USB-tashar.

The damar batu LiFi-X:

• Da iko a kan PoE ko PLC.
• Easy kafuwa.
• Connection zuwa LED-fitilu samar atto-cell.
• Mahara damar.
• Smooth sharuddan sauyawa tsakanin damar maki.

LiFi-X tashar:

• USB 2.0.

adabi

Littatafan Li-Fi fasaha, duk da sabon abu, ba nadiri, duk da haka, domin mafi yawan bangare ba a fassara a cikin Rasha. Ga wasu daga cikinsu:

• Arnon, Shlomi. Bayyane haske sadarwa. Cambridge, United Kingdom: Cambridge University Press, 2015. Fitar.
• Dimitrov, Svilen, kuma Harald Haas. Principles of LED haske sadarwa: zuwa ga yanar-gizon Li-Fi. Cambridge: Cambridge University Press, 2015. Fitar.
• Ghassemlooy, Zabih, W Popoola, kuma S Rajbhandari. Tantancewar mara waya ta sadarwa da tsarin da tashar yin tallan kayan kawa da MATLAB. Boca Raton, FL: CRC Press, 2013. Fitar.

Books suna samuwa a cikin online store Amazon.