Harald Haas: Forget Wi-Fi. Meet the new Li-Fi Internet
हॅरल्ड हास: नव्या प्रकारचे बिनतारी इंटर नेट महत्वाचा नवा शोध.
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
कि व्हिडियो पाठविता येतो
acting as a receiver.
व एका ग्राहक केंद्र म्हणून काम करतो.
it's just light.
फक्त प्रकाशाचा वापर आहे.
extension of the Internet
इंटरनेटची वाढ करावी लागेल
"The Internet of Things" --
परवानगी द्यावी लागेल
connected to the Internet.
of the Internet can only work
काम करू शकेल केवळ
infrastructure as much as possible.
आपण शक्य तितकीच वापरावी.
and the LED come in.
led दिवा व सौर घट मदतीस येतो.
किवा लाईट फायडेलिटी
to transmit data incredibly fast,
led चा माहिती प्रक्षेपीत करण्यास.
of the brightness.
घनतेत गुप्त सांकेतिक बदल करून.
we have many LEDs around us,
of Li-Fi transmitters around us.
उच्च दर्जाची रचना झालेली आहे.
special devices -- small photo detectors,
लहानसे प्रकाश संवेदी ग्राहक.
encoded in the data.
गुप्त संकेतीक माहिती मिळवितो.
existing infrastructure
ही माहिती प्राप्त करावयाची होती
solar cells and solar panels.
and converts it into electrical energy.
त्याचे विद्युत शक्तीत रुपांतर करतो.
to charge our mobile phone.
मोबाईल प्रभारित करण्यासाठी करितो.
of the brightness of the LED,
एनकोडेड केलेली असते.
कमी जास्त होत असेल तर
from the solar cell.
a principal mechanism in place
आपण याचे यांत्रिक तत्व जाणले आहे,
and by the solar cell,
तीही सौर घटा मार्फत
of the energy harvested
ग्रहण केलेला प्रकाश
changes of the brightness,
प्रकाशाच्या उजळ पणात बदल करू शकू.
by our LED lights?
पडणाऱ्या प्रकाशा प्रमाणे
megabytes per second
इतका प्रकाशाच्या उजळ पणत बदल करू शकतो.
broadband connections these days.
जोद्निहून वेगवान.
off-the-shelf LED lamp.
off-the-shelf solar cell;
we harvest from the solar cell.
दृष्टीपथात आणेल.
something at the moment.
harvests light from the ambient light.
प्रकाशाचे उर्जेत रुपांतर केले आहे.
is switch on the light,
the instrument jumps to the right.
हे उपकरण उजव्या बाजूस गेलेले.
from this artificial light source.
विद्युत उर्जेत रुपांतर केले आहे.
the streaming of the video.
चित्रण पाठविणार आहे सलग
by pressing this button.
is streaming a video
in a very subtle way,
उचित बदल करून हे शक्य झाले.
recognize with your eye,
तुम्ही पाहू शकणार नाही.
are too fast to recognize.
अडथळा आणतो.
the energy harvesting drops
the video will restart.
पुन्हा चित्रण पाठविणे सुरु झाले
and energy harvesting stops as well.
उर्जा निर्मिती सौरघट थांबवितो.
acts as a receiver.
is a street light, and there's fog.
आणि धुके पडले आहे.
a handkerchief with me.
over the solar cell.
the handkerchief to the solar cell,
and stream that information,
चित्रण पाठविण्याचे सुरु ठेवतो .
a solar cell has become a receiver
सौरघट एक ग्राहक आहे.
encoded in light,
वेगवान बिनतारी एनकोडेड सिग्नल .
as an energy-harvesting device.
उर्जा निर्मिती चालूच ठेवतो.
on the roof of a hut
वापरावयाचा झाल्यास
म्हणून वापर करण्यासाठी
or indeed, lamp post.
दिव्याचा वापर करावा लागेल.
where the beam hits the solar cell.
कोठून पडतो.
integrated into windows,
जो घराच्या खिडकीला जोडला आहे.
into street furniture,
into these billions of devices
पुरवू शकू.
these devices regularly,
सारखी चार्ज करावी लागणार नाहीत.
every few months.
बदलाव्या लागणार नाहीत.
सार्वजनिकरीत्या दाखवीत आहे.
I've shown this in public.
that we can take this to market
विश्वास आहे लवकरच बाजारात आणू.
to closing the digital divide,
कमी करण्यास आम्ही सहाय्य करू.
of devices to the Internet.
याशी जोडण्यास.
of energy consumption --
quite the opposite.
अगदी विस्मयकारकपणे
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