Li-Fi - How Does It Work?

Li-Fi How DOES IT WORK & WHAT THE HECK Is IT, ANYWAY? i+. f facebook.com/ClearAF with plus.google.com/+Clearaf 8" CLEAR ASSET FINANCE @ClearAF_Leasing [email protected] Clear Li-Fi stands for Light Fidelity What's so special about Li-Fi? Like Wi-Fi, it's a method of transmitting data from one point to another wirelessly. THE SPEED! Whereas Wi-Fi uses RADIO WAVES, Li-Fi useslGHT to communicate data The highest speed yet recorded with a Li-Fi connection is 10Gbit/s 10 Gigabytes per second, which is 250 TIMES So, I need fancy expensive lights, right? WRONG Li-Fi uses PRE-EXISTING LED lights that need only an extra computer chip to be installed FASTER than the average broadband speed LEDS This estimate is with high-end equipment, however. Light-emitting diodes are the next big Commercial Li-Fi being produced in China is at about 150Mbps, which is still 10 TIMES HIGHER than the average UK connection speed thing in the lighting world. Efficient and long-lasting, they're already replacing filament and halogen lighting. How does it work? Across the UK, businesses are installing Binary information is made up of strings of LED lighting, especially the big retailers such as Tesco and Sainsbury's. So there's a ready 1's and O's Any light source can transmit this ON and OFF information... ...but LEDS are capable of the highest flickering speed. infrastructure for Li-Fi! Light receivers interpret the flickering LED as 1's and 0's, and thus we have our Li-Fi! 10100010101101011001010101001101 INTERNET INTERNET INTERNET INTERNET INTERNET INTERNET INTERNET INTERNET INTERNET INTERNET INTERNET Light off = 0 Light on = 1 Visible light is far more dense than radio waves, Why is Li-Fi so much faster? 10,000 times more dense in fact, meaning much more data can be transferred L-Fi iS READY FOR COMPUTERS AND ROUTERS. COMMERCIAL USE OF LI-FI IS JUST TAKING OFF IN CHINA. RUT Smartphone and tablet connections are a problem for Li-Fi. How are you supposed to connect with light when your device is moving around? 53% of all internet access in the UK is through MOBILE DEVICES, so it's an important hurdle to jump! SOLUTION? PureliFi, a company born from Edinburgh University, recently demonstrated that Li-Fi signals could be read as INCIDENCE LIGHT This isn't a This means that Li-Fi can be read by a perfect solution. receiver when it's Connection to Li-Fi on REFLECTED OFF SURFACES... a mobile device will never be as reliable as ...and that mobile devices can with Wi-Fi. connect to Li-Fi on the go! But it may not need to be perfect. Both Li-Fi and Wi-Fi have their advantages and disadvantages depending on the circumstance. Although Wi-Fi can penetrate walls, this isn't always desirable. Because Li-Fi doesn't use radio waves as Wi-Fi does, it doesn't interfere with radio communication. This means Li-Fi can be used safely during flights! Li-Fi can prevent internet piggybacking, and may offer a more secure connection for those in, for example, intelligence agencies or embassies. Li-Fi is an amazing technology For projects that deal with massive amounts of data, such as at CERN with the Large Hadron Collider... It's also in its early days. It's hard to predict how a technology will develop over time, but it's safe to say that a combination of Li-Fi and Wi-Fi will bring the Li-Fi is the clear winner over Wi-Fi and CERN wired connections best of both worlds to the internet. So Now You KNOW... You have yet another reason to think about upgrading to LED lighting. CLEAR ASSET FINANCE offer leasing on LEDS, and a Clear plethora of other energy efficient technologies. Feel free to contact us for more information t: 01277 239932 w: clearaf.co.uk e: [email protected] 0011010010100101100011