Harald Haas: Forget Wi-Fi. Meet the new Li-Fi Internet
Harald Haas: En avance en un nuevo Internet inalámbrico
Harald Haas is the pioneer behind a new technology that can communicate as well as illuminate. Full bio
Double-click the English transcript below to play the video.
for the first time in public
por primera vez en público
acting as a receiver.
portátil que actúa como receptor.
it's just light.
extension of the Internet
"The Internet of Things" --
"El Internet de las cosas"
dispositivos conectados a Internet--.
connected to the Internet.
of the Internet can only work
solo puede funcionar
infrastructure as much as possible.
existente tanto como sea posible.
y el LED intervienen.
and the LED come in.
to transmit data incredibly fast,
transmitir datos increíblemente rápido,
segura y protegida.
of the brightness.
we have many LEDs around us,
tenemos muchos LEDs que nos rodean,
of Li-Fi transmitters around us.
de transmisores Li-Fi que nos rodea.
special devices -- small photo detectors,
especiales, pequeños detectores de fotos,
encoded in the data.
codificada en los datos.
existing infrastructure
también la infraestructura existente
de nuestras luces Li-Fi.
solar cells and solar panels.
en las células solares y paneles solares.
and converts it into electrical energy.
y la convierte en energía eléctrica.
to charge our mobile phone.
solar para cargar nuestro teléfono móvil.
of the brightness of the LED,
en cambios sutiles del brillo del LED,
from the solar cell.
obtenida de la célula solar.
a principal mechanism in place
un mecanismo principal allí
and by the solar cell,
y por el panel solar,
of the energy harvested
de la energía recolectada
changes of the brightness,
y sutiles de la luminosidad,
by our LED lights?
por nuestras luces LED?
megabytes per second
hasta 50 megabytes por segundo
broadband connections these days.
conexiones de banda ancha actuales.
off-the-shelf LED lamp.
una lámpara LED comercial estándar.
off-the-shelf solar cell;
we harvest from the solar cell.
que recolectamos del panel solar.
something at the moment.
en este momento.
harvests light from the ambient light.
ya recolecta luz de la luz ambiente.
is switch on the light,
es encender la luz,
the instrument jumps to the right.
salta a la derecha.
from this artificial light source.
a partir de esta fuente de luz artificial.
con el panel solar.
the streaming of the video.
la transmisión del video.
by pressing this button.
is streaming a video
está transmitiendo un video
in a very subtle way,
de una manera muy sutil,
recognize with your eye,
a simple vista,
demasiado rápidos para reconocerlos.
are too fast to recognize.
the energy harvesting drops
la recolección de energía cae
the video will restart.
el video se reiniciará.
and energy harvesting stops as well.
vídeo y la recolección de energía también.
acts as a receiver.
actúa como un receptor.
is a street light, and there's fog.
LED es una luz de la calle, y hay niebla.
a handkerchief with me.
over the solar cell.
sobre el panel solar.
como se esperaba,
que a pesar de la obstrucción,
the handkerchief to the solar cell,
por el pañuelo al panel solar,
and stream that information,
descodificar y transmitir esa información,
a solar cell has become a receiver
un panel solar se convirtió en un receptor
encoded in light,
de alta velocidad codificadas en la luz,
as an energy-harvesting device.
de recolección de energía.
on the roof of a hut
en el techo de una choza
de banda ancha
or indeed, lamp post.
colina, o de hecho, en un poste de luz.
where the beam hits the solar cell.
dónde el rayo golpea el panel solar.
integrated into windows,
integradas en las ventanas,
into street furniture,
en el mobiliario urbano,
into these billions of devices
en estos miles de millones de dispositivos
these devices regularly,
estos dispositivos regularmente,
every few months.
cada pocos meses.
I've shown this in public.
he mostrado esto en público.
that we can take this to market
de que podemos lanzarlo al mercado
to closing the digital divide,
a cerrar la brecha digital,
de millones de dispositivos a Internet.
of devices to the Internet.
of energy consumption --
del consumo de energía,
por los paneles solares,
quite the opposite.
ABOUT THE SPEAKER
Harald Haas - Communications technology innovatorHarald Haas is the pioneer behind a new technology that can communicate as well as illuminate.
Why you should listen
Imagine using your car headlights to transmit data ... or surfing the web safely on a plane, tethered only by a line of sight. Harald Haas is working on it. He currently holds the Chair of Mobile Communications at the University of Edinburgh, and is co-founder and Chief Scientific Officer of pureLiFi Ltd as well as the Director of the LiFi Research and Development Center at the University of Edinburgh. His main research interests are in optical wireless communications, hybrid optical wireless and RF communications, spatial modulation, and interference coordination in wireless networks.
Haas has long been studying ways to communicate electronic data signals, designing modulation techniques that pack more data onto existing networks. But his latest work leaps beyond wires and radio waves to transmit data via an LED bulb that glows and darkens faster than the human eye can see. His group published the first proof-of-concept results demonstrating that it is possible to to turn commercially available light emitting diode (LED) light bulbs into broadband wireless transmission systems.
"It should be so cheap that it's everywhere," he says. "Using the visible light spectrum, which comes for free, you can piggy-back existing wireless services on the back of lighting equipment."
Harald Haas | Speaker | TED.com