{"id":194247,"date":"2015-12-01T10:42:15","date_gmt":"2015-12-01T09:42:15","guid":{"rendered":"http:\/\/www.pcnen.com\/portal\/?p=194247"},"modified":"2015-12-01T10:42:15","modified_gmt":"2015-12-01T09:42:15","slug":"li-fi-iz-sijalica","status":"publish","type":"post","link":"https:\/\/www.pcnen.com\/portal\/2015\/12\/01\/li-fi-iz-sijalica\/","title":{"rendered":"Li-Fi iz sijalica"},"content":{"rendered":"<p><img loading=\"lazy\" decoding=\"async\" class=\"alignright size-medium wp-image-194248\" src=\"http:\/\/www.pcnen.com\/portal\/wp-content\/uploads\/2015\/12\/Li-Fi-300x212.jpg\" alt=\"Li Fi\" width=\"300\" height=\"212\" \/>U budu\u0107nosti nas \u010deka novi na\u010din be\u017ei\u010dnog prenosa podataka internetom koji se zove Li-Fi, a koja omogu\u0107ava pristup 100 br\u017ee od tradicionalnih Wi-Fi rutera, uz brzinu od jednog gigabajta po sekundi.<\/p>\n<p>Sve \u0161to \u0107e nam biti potrebno je izvor svjetlosti (standardna led sijalica), internet konekcija i foto detektor.<\/p>\n<p>Ovaj na\u010din pristupa internetu testiran je u glavnom gradu Estonije, Talinu, u okviru start-ap projekta Velmeni.<\/p>\n<p>Sam sistem radi na sli\u010dan na\u010din na Morseov kod, pomo\u0107u vidljive svetlosne komunikacije (VLC), ali djeluje pri brzinama koje su previsoke da bi se mogle otkriti golim okom.Li-Fi tehnologija koristi vidljivu svjetlost izme\u0111u 400 i 800 teraherca (THz), a prenosi poruke putem binarnog koda.<\/p>\n<p>Li-Fi tehnologija (koju neki ve\u0107 nazivaju svetlosnim internetom) mogla bi, prema rije\u010dima Dipaka Solankija, \u0161efa start-ap projekta, da bude dostupna korisnicima u narednih tri do \u010detiri godine.<\/p>\n<p>Profesor Harald Haas, sa Univerziteta u Edinburghu, pionir je ove zanimljive tehnologije i on je skovao rije\u010d &#8220;LiFi&#8221; 2011 godine.<\/p>\n<p>Ova tehnologija ima jednu manu: ne mo\u017ee biti primijenjena po danu, na mjestima gdje je prostor obasjan sun\u010devim zdracima, jer bi tada do\u0161lo do ometanja signala.<\/p>\n<p><iframe loading=\"lazy\" title=\"Harald Haas A breakthrough new kind of wireless internet\" width=\"1080\" height=\"608\" src=\"https:\/\/www.youtube.com\/embed\/DvrnzEORjfk?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n","protected":false},"excerpt":{"rendered":"<p>U budu\u0107nosti nas \u010deka novi na\u010din be\u017ei\u010dnog prenosa podataka internetom koji se zove Li-Fi<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","inline_featured_image":false,"footnotes":""},"categories":[9],"tags":[],"class_list":["post-194247","post","type-post","status-publish","format-standard","hentry","category-zanimljivosti"],"_links":{"self":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/194247","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/comments?post=194247"}],"version-history":[{"count":0,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/posts\/194247\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/media?parent=194247"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/categories?post=194247"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.pcnen.com\/portal\/wp-json\/wp\/v2\/tags?post=194247"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}