Here is a masterpiece. You might have heard about the term Wi
fi and its usage. But have you heard about Li-fi.?? Here is a small intro to that technology.
Li-Fi :
· Li Fi is nothing but the Light fidelity communication systems.
· It is the
fastest and cheapest wireless communication systems and is the optical version of
the Wifi.
· The term
was first used by Harald Haas in TED
Global talk.
· The
technology works by adapting LEDs to send digital information, invisible to the
naked eye.
· A light sensor on a device picks up the digital information sent by the LED, which enables it to be processed by a computer.
· It is similar to the Wifi except that it uses Light waves instead of Radio waves.
· Wifi is great for general wireless coverage while Lifi is ideal for high density coverage in a confined region.
· It is believed that the technology can yield a speed more than 10 Gbps, allowing a HD film to be downloaded within 30 seconds.
· Its disadvantage is that the light waves cannot penetrate walls.
· In 2012,
this technology was demonstrated and it was detectable upto a distance of 10
meter.
· Every
light source in homes and offices could potentially be a “Li-Fi” within 20
years.
· When this
technology becomes feasible like the Wifi, then our life will be awesome on
earth.
"This is the technology that could start to touch every aspect
of human life within a decade”
- Prof.
Martin Dawson, Univ. of Strathclyde
