利用led燈上網 LiFi將可取代WiFi

littlepants9394 · 發表於 2013-10-23 00:44:09

不需WiFi信號，點一盞LED燈就能上網。上海復旦大學「計算機科學技術學院」在實驗室裡，成功利用一盞只有1W的LED燈珠，讓燈光下4臺電腦上網。

新華網報導，這項實驗來自德國物理學家哈斯的構想：利用一盞小小的燈，將看不見的網路信號，變成看得見的網路信號。哈斯和他在英國愛丁堡大學的團隊最新發明了一種專利技術，利用閃爍的燈光來傳輸數位資料，科學家把這種可見光傳輸通訊親切地稱為“Lifi”,相對於目前以WiFi為代表的無線網路傳輸技術。

這套技術如果發展成熟，意味網路使用者將可以更方便廉價、更安全更有效率的方式進行無線網路傳輸。因為「有燈光的地方，就有網路信號」

littlepants9394 · 發表於 2013-10-23 00:45:45

Some more video info

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kingofjohn2004 · 發表於 2013-10-23 22:33:09

個技術唔係好成熟
接收唔係太好

BB29 · 發表於 2013-10-24 01:36:13

科技又進一步

callgirls · 發表於 2013-10-24 01:40:39

Lifi若真能開發成功，
資訊安全技術問題必定要優先克服。

henry1328 · 發表於 2013-10-24 01:40:50

What is LiFi ?

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Today , we know the WiFi to access data without using a cable. Perhaps soon we will use the li -fi, which works on the same principle, but based on reading
Mière . It was presented at the LeWeb 2012 show.

Developed by Suat Topsu , University of Versailles Saint Quentin en Yvelines, Li- fi ( for Light - Fidelity ) is based on a system similar to Morse code. Put the machine near a light source , and it will flash imperceptibly to transmit information such as videos or text messages .

For now, this technology is in the experimental stage , but it already has a lot of quality . Already , the information transmitted is not harmful to humans, since it is that light . In addition, it allows to transmit information to a specific location.

A technology that has a future , and that may be required in future years in public places . For example , advertisers are interested in Li -Fi to integrate them into billboards, and then send the data to the people around . This technology is not thinking exclusively in France . Japan and the United States are also working on.