Sometimes, to travel or leave somewhere on vacation, to places where there are Internet
Whereupon the lamp to your room, illuminated and browse your email, you see YouTube and download files at speeds up to 1 Gbps never think it's a joke it is a new technology called Pal Li Fi
.
Whereupon the lamp to your room, illuminated and browse your email, you see YouTube and download files at speeds up to 1 Gbps never think it's a joke it is a new technology called Pal Li Fi
.
What is the Li Fi:
Li Fi is an abbreviation of the term Light Fidelity, a technique that wireless connections optical high-speed, based on visible light as a means of data transmission, which is invented by Professor of Communications Engineering at the University of Edinburgh, Scotland, "Harald Haas" has been ranked the technology as one of the best innovations of 2011 by Time Magazine American
Each lamp in the world will be able to transfer data, street lamps, automotive lamps Simple LED lamp (very fast so as not to the naked eye can see)
This lamp works by System D-Light, this system is based on a mathematical trick called OFDM (perpendicular double frequency Tksiem) valve which allows the production of a very fast rate and is invisible to the human eye.
Principle upon which this technology is simple , working modern LED lampsShow light rays can not be seen by the naked eye . UVR able to transferInformation that can be received by sending and receiving station vehicle, itWhich could represent a revolution in the world of data transfer.The use of light in the world of communication will make use of the Internet during theTravel as possible through rapid rail , cars have exchangedWarnings about traffic jams or accidents, which will lead to a closer correlationBetween humans and machines.After increasing spread of wireless communications that rely on radio waves,Increased dramatically with the spread of devices that broadcast and receive data viaThe Internet, through mobile networks or through networks of the "WiFi".Figures and statistics to an unprecedented rise in the approved amount of dataOn the Internet as a natural result of the increasing number of mobile devices that have the abilityTo connect to the Internet and send and receive data, in addition to spreadingGrowing Internet - connected smartphones and contain advanced features .All these reasons have led to an unprecedented increase in the consumption data, thusIncreasing pressure on existing wireless networks , making it unable to keep pace with thisThe vast amount of data. Technology comes "Li-Fi" as a solution to this problem, and itThanks to high - speed data transfer.Technical ...
For internet connection through technology , " Li - Fi " must be lit LEDs . ButThis does not constitute a major obstacle , for example, companies and factories use LEDs inDuring the period of traditional work, as well as homes for lighting at night. Although , it is notNecessary those bulbs lighting during the day , because it can be for these bulbsReduce lit so that it can not be observed , however the data transfer process will continueBut less quickly. Whenever the lighting is good , the more data transfer speedStrong , and whenever the lighting is dim speed was less.It also does not need technology , " Li - Fi " to a special kind of lamps , but only to mergeSmall chip inside the lamp for data transmission . With reference to that these bulbsMust operate LED technology with a white light .To receive the signal "Li-Fi" must add
a small chip to receive data,Computer hardware , and can be picked up by a digital cameraIn the device.Its advantages ...It is worth mentioning that any light sources not cluttered on the data transfer process , because theseTechniques rely on the process of the nomination of chips and filtering , ensure that any affectedThe data transfer process , and therefore there is no additional light sources does not undertake anyLittle impact on the data transfer process .The data transfer process using technology , " Li - Fi " confined spaceArrive light , and thus will not be leaked to the outside , will deprive the opportunity toHackers and Almottagssen access to your computer or your phone and grab your data.It does not rely on radio waves as the rest of the techniques currently exist , whatMakes control and direct them very easy .Of the most important advantages offered by technology , " Li - Fi " also is a tremendous speed in the transferData up to 1 GB , the fact that visible light waves with a frequency of greaterFrequency radio waves by 10,000 times .The technique "Li-Fi" does not cluttered navigation devices , medical devices and industrialSensitive, as is the case with communication technologies based on radio waves,It is therefore using the technique of " Li - Fi " optical Internet can be usedPhones and laptop computers and Allouhaat in hospitals , aircraft, and even in theSensitive industrial facilities .One of the most important properties of light is the ability to force water through the normal reluctanceUnlike radio waves that you can repeat not force through the water , so the technique"Li-Fi" allows the transfer of data under the water and in the depths .
It should be noted that the cost of this technology cheap, has the qualifications to spread widely, as it is safer and more effective than Wifi.
