TEDGlobal 2011
Harald Haas: Wireless data from every light bulb
Harald Haas: haririk gabeko datuak foku gori bakoitzetik
Filmed:
Readability: 3.8
2,722,597 views
Zer gertatuko litzateke foku gori guztiek datuak igorriko balituzte? TEDGlobal-en Harald Haas-ek erakusten du, lehenengo aldiz, hori egin dezaken gailu batek. LED arrunta batetik argia kliska egitean, gizakiaren begirako oso aldaketa azkarregia eta antzemanezina gertatzen da, gailuak telekomunikazio dorreak baino datu gehiago igor ditzake -- eta oso era eraginkor, ziur eta zabalean egiten du.
Harald Haas - Communications technology innovator
Harald Haas is the pioneer behind a new technology that can communicate as well as illuminate. Full bio
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.
00:15
Do you know
0
0
2000
Ba al dakizu
00:17
that we have 1.4 million cellular radio masts
1
2000
3000
telefonia mugikorraren 1,4 milioi antena ditugula
00:20
deployed worldwide?
2
5000
2000
mundu osoan zehar jarrita?
00:22
And these are base stations.
3
7000
2000
Eta horiek base-estazioak dira.
00:24
And we also have
4
9000
2000
Eta badaukagu ere bai
00:26
more than five billion
5
11000
2000
horrelako 5.000 milioi gailu
00:28
of these devices here.
6
13000
2000
baino gehiago hemen.
00:30
These are cellular mobile phones.
7
15000
3000
Hauek telefono mugikorrak dira.
00:33
And with these mobile phones,
8
18000
2000
Eta telefono mugikor horiekin,
00:35
we transmit more than 600 terabytes of data
9
20000
2000
600 terabite datu baino gehiago
00:37
every month.
10
22000
2000
igortzen ditugu hilero.
00:39
This is a 6 with 14 zeroes --
11
24000
2000
Hau da 6 gehi 14 zero --
00:41
a very large number.
12
26000
2000
oso zenbaki handia, benetan.
00:43
And wireless communications
13
28000
3000
Eta haririk gabeko komunikazioak
00:46
has become a utility
14
31000
3000
zerbitzu publiko bihurtu dira
00:49
like electricity and water.
15
34000
2000
elektrizitatea eta ura bezala.
00:51
We use it everyday. We use it in our everyday lives now --
16
36000
3000
Egun guztietan erabiltzen ditugu.
Baita eguneroko bizitzetan ere gaur egun --
Baita eguneroko bizitzetan ere gaur egun --
00:54
in our private lives, in our business lives.
17
39000
2000
bizitza pribatuetan, gure negozioetan.
00:56
And we even have to be asked sometimes, very kindly,
18
41000
4000
Eta noizean behin eskatu behar gaituzte mesedez
01:00
to switch off the mobile phone at events like this
19
45000
2000
gure telefono mugikorrak amatatzeko honelako gertakizunetan
01:02
for good reasons.
20
47000
3000
arrazoi on batzuk direla eta.
01:05
And it's this importance
21
50000
2000
Eta garrantzi hau kontuan hartuta
01:07
why I decided to look into the issues
22
52000
2000
nik erabaki nuen aztertzea
01:09
that this technology has,
23
54000
2000
teknologia honen inguruan,
01:11
because it's so fundamental to our lives.
24
56000
3000
gure bizitzarako funtsezkoa delako.
01:14
And one of the issues is capacity.
25
59000
2000
Eta esparru horietako arazo bat ahalmena da.
01:16
The way we transmit wireless data is by using electromagnetic waves --
26
61000
3000
Haririk gabeko datuak igortzeko era da
uhin elektromagnetikoen zehar --
uhin elektromagnetikoen zehar --
01:19
in particular, radio waves.
27
64000
3000
zehazki, irrati-uhinen zehar.
01:22
And radio waves are limited.
28
67000
2000
Eta irrati-uhin mugatuak dauzkagu.
01:24
They are scarce; they are expensive;
29
69000
2000
Urriak dira, garestiak dira,
01:26
and we only have a certain range of it.
30
71000
3000
eta tarte zehatz bat besterik ez dugu.
01:30
And it's this limitation
31
75000
2000
Eta mugaketa hau
01:32
that doesn't cope
32
77000
2000
ez dator bat
01:34
with the demand of wireless data transmissions
33
79000
2000
haririk gabeko datu-igorketaren eskaerarekin
01:36
and the number of bytes and data which are transmitted every month.
34
81000
3000
eta hilero igortzen diren datuekin eta byte-kopuruekin.
01:39
And we are simply running out of spectrum.
35
84000
2000
Eta espektrotik kanpo gaude oraintxe bertan.
01:41
There's another problem.
36
86000
2000
Badago beste arazo bat.
01:43
That is efficiency.
37
88000
2000
Eraginkortasuna da.
01:45
These 1.4 million cellular radio masts, or base stations,
38
90000
3000
Telefonia mugikorraren 1,4 milioi antena horiek edo base-estazioek
01:48
consume a lot of energy.
39
93000
2000
energia asko xahutzen dute.
01:50
And mind you, most of the energy
40
95000
2000
Eta, aizue, energia horien gehiengoa
01:52
is not used to transmit the radio waves,
41
97000
2000
ez da erabiltzen irrati-uhinak igortzeko
01:54
it is used to cool the base stations.
42
99000
3000
baizik eta base-estazioak hozteko.
01:57
Then the efficiency of such a base station
43
102000
2000
Orduan base-estazio bakoitzaren eraginkortasuna
01:59
is only at about five percent.
44
104000
3000
%5a da soilik.
02:02
And that creates a big problem.
45
107000
3000
Eta horrek arazo handia sortzen du.
02:05
Then there's another issue that you're all aware of.
46
110000
3000
Gero badago beste arazo bat
eta uste dut jakitun zaretela.
eta uste dut jakitun zaretela.
02:08
You have to switch off your mobile phone
47
113000
2000
Telefono mugikorrak amatatu behar dituzue
02:10
during flights.
48
115000
2000
hegazkinetan
02:12
In hospitals, they are security issues.
49
117000
3000
ospitaletan, segurtasun arrazoiak direla eta.
02:15
And security is another issue.
50
120000
3000
Eta segurtasuna beste arazo bat da.
02:18
These radio waves penetrate through walls.
51
123000
2000
Irrati-uhinek hormak zeharkatzen dituzte.
02:20
They can be intercepted,
52
125000
2000
Norbaitek geldiarazi ditzake,
02:22
and somebody can make use of your network
53
127000
3000
eta gizaki batek zuen sarea erabil dezake
02:25
if he has bad intentions.
54
130000
2000
intentzio txarrekoa bada.
02:27
So these are the main four issues.
55
132000
2000
Orduan hauexek dira lau arazo handienak.
02:29
But on the other hand,
56
134000
2000
Baina beste aldetik,
02:31
we have 14 billion of these:
57
136000
2000
14.000 milioi
02:33
light bulbs, light.
58
138000
3000
foku gori dauzkagu, argia.
02:36
And light is part of the electromagnetic spectrum.
59
141000
3000
Eta argia espektro elektromagnetikoaren zatia da.
02:39
So let's look at this in the context
60
144000
2000
Orduan hau ikus dezagun
02:41
of the entire electromagnetic spectrum, where we have gamma rays.
61
146000
3000
espektro elektromagnetikoaren inguru osoan,
non gamma izpiak dauden.
non gamma izpiak dauden.
02:44
You don't want to get close to gamma rays, it could be dangerous.
62
149000
2000
Ez da komenigarria gamma izpien ondoan egotea,
arriskutsua izan liteke.
arriskutsua izan liteke.
02:46
X-rays, useful when you go to hospitals.
63
151000
3000
X-izpiak, oso erabilgarriak ospitaletan.
02:49
Then there's ultraviolet light.
64
154000
2000
Eta argi ultramorea
02:51
it's good for a nice suntan,
65
156000
2000
ona da beltzaran kolorea hartzeko,
02:53
but otherwise dangerous for the human body.
66
158000
2000
baina arriskutsua gizakiaren gorputzerako.
02:55
Infrared --
67
160000
2000
Infragorriak --
02:57
due to eye safety regulations,
68
162000
2000
begien segurtasun arauak direla eta,
02:59
can be only used with low power.
69
164000
2000
behe potentzian erabil daitezke soilik.
03:01
And then we have the radio waves, they have the issues I've just mentioned.
70
166000
3000
Eta, amaitzeko, irrati-uhinak dauzkagu,
arestian aipatu ditudan arazoekin.
arestian aipatu ditudan arazoekin.
03:04
And in the middle there, we have this visible light spectrum.
71
169000
3000
Eta hor erdian, argi ikusgaiaren espektroa daukagu.
03:07
It's light,
72
172000
2000
Argia da
03:09
and light has been around for many millions of years.
73
174000
2000
eta argia urte askotan zehar existitu egin da.
03:11
And in fact, it has created us,
74
176000
3000
Eta, egia esanda, berak sortu gaitu,
03:14
has created life,
75
179000
2000
bizitza sortu egin du,
03:16
has created all the stuff of life.
76
181000
2000
bizitzaren materia osoa sortu egin du.
03:18
So it's inherently safe to use.
77
183000
3000
Beraz berezko segurtasuna du.
03:21
And wouldn't it be great to use that for wireless communications?
78
186000
4000
Eta ez litzateke miragarririk izango
haririk gabeko komunikazioetarako erabiltzea?
haririk gabeko komunikazioetarako erabiltzea?
03:25
Not only that, I compared [it to] the entire spectrum.
79
190000
3000
Hori ez ezik, espektro osoarekin konparaketa egiten dut.
03:28
I compared the radio waves spectrum --
80
193000
2000
Irrati-uhinen espektroarekin konparatu nuen --
03:30
the size of it --
81
195000
2000
bere tamaina --
03:32
with the size of the visible light spectrum.
82
197000
2000
argi ikusgaiaren espektroaren tamainarekin.
03:34
And guess what?
83
199000
2000
Eta ezetz asmatu,
03:36
We have 10,000 times more of that spectrum,
84
201000
3000
espektro horren 10.000 mila aldiz gehiago daukagu,
03:39
which is there for us to use.
85
204000
3000
hortxe eskuragarri dagoena.
03:42
So not only do we have this huge amount of spectrum,
86
207000
3000
Eta espektro kantitate handia izan ez ezik,
03:45
let's compare that with a number I've just mentioned.
87
210000
2000
konpara dezagun arestian aipatutako zenbakiarekin.
03:47
We have 1.4 million
88
212000
2000
Badaukagu 1,4 milioi base-estazio
03:49
expensively deployed,
89
214000
2000
modu garestian kokatuak,
03:51
inefficient radio cellular base stations.
90
216000
3000
eraginkor ez diren zelula-irratien base-estazioak.
03:54
And multiply that by 10,000,
91
219000
2000
Eta egin 1,4 milioi bider 10.000,
03:56
then you end up at 14 billion.
92
221000
2000
emaitza da 14.000 milioi.
03:58
14 billion is the number of light bulbs installed already.
93
223000
3000
14.000 milioi da jadanik jarritako foku gorien zenbakia.
04:01
So we have the infrastructure there.
94
226000
2000
Orduan badaukagu azpiegitura han.
04:03
Look at the ceiling, you see all these light bulbs.
95
228000
3000
Begira ezazue sabaia, foku gori guzti horiek ikus daitezke.
04:06
Go to the main floor, you see these light bulbs.
96
231000
2000
Zoazte solairu printzipalera, foku gori horiek ikusten dira.
04:08
Can we use them for communications?
97
233000
2000
Komunikatzeko erabil al ditzakegu?
04:10
Yes.
98
235000
2000
Bai.
04:12
What do we need to do?
99
237000
2000
Zer egin behar dugu?
04:14
The one thing we need to do
100
239000
2000
Egin behar dugun gauza bakarra da
04:16
is we have to replace these inefficient incandescent light bulbs,
101
241000
3000
foku gori ez eraginkor horiek aldatu,
04:19
florescent lights,
102
244000
3000
argi fluoreszenteak,
04:22
with this new technology of LED,
103
247000
2000
LED teknologia berri honekin,
04:24
LED light bulbs.
104
249000
2000
LED foku goriak.
04:26
An LED is a semiconductor. It's an electronic device.
105
251000
2000
LED erdieroalea da. Gailu elektronikoa da.
04:28
And it has a very nice acute property.
106
253000
4000
Eta LEDek oso ezaugarri polita du.
04:32
Its intensity can be modulated
107
257000
3000
Bere intentsitatea mendera daiteke
04:35
at very high speeds,
108
260000
2000
abiadura azkarrean,
04:37
and it can be switched off at very high speeds.
109
262000
3000
eta amatatu daiteke abiadura azkarrean ere bai.
04:40
And this is a fundamental basic property
110
265000
2000
Eta hau da oso funtsezko eta garrantzizko ezaugarria
04:42
that we exploit
111
267000
2000
guk baliatzen duguna
04:44
with our technology.
112
269000
3000
gure teknologiarekin.
04:47
So let's show how we do that.
113
272000
2000
Orduan erakutsiko dizuegu nola egiten dugun hori.
04:49
Let's go to the closest neighbor to the visible light spectrum --
114
274000
2000
Joan gaitezen argi-ikusgaiaren espektroaren auzokide gertuenera, --
04:51
go to remote controls.
115
276000
2000
joan gaitezen urrutiko kontrolera.
04:53
You all know remote controls have an infrared LED --
116
278000
2000
Zuek badakizue urrutiko kontrolek
badaukatela LED infragorri bat --
badaukatela LED infragorri bat --
04:55
basically you switch on the LED, and if it's off, you switch it off.
117
280000
3000
funtsean, zuek LED pizten duzue
eta amatuta badago, berriro piztu.
eta amatuta badago, berriro piztu.
04:58
And it creates a simple, low-speed data stream
118
283000
3000
Eta berak behe-abiadurako data-fluxu soila sortzen du
05:01
in 10,000 bits per second,
119
286000
2000
10.000 bits segundoko,
05:03
20,000 bits per second.
120
288000
2000
20.000 bits segundoko.
05:05
Not usable for a YouTube video.
121
290000
2000
Ez da batere erabilgarria YouTubeko bideo baterako.
05:07
What we have done
122
292000
2000
Guk egin duguna
05:09
is we have developed a technology
123
294000
3000
teknologia garatzea besterik ez da
05:12
with which we can furthermore
124
297000
3000
zeinekin guk, gainera, aldatu ahal izango dugun
05:15
replace the remote control of our light bulb.
125
300000
2000
gure foku goriaren urrutiko kontrola.
05:17
We transmit with our technology,
126
302000
2000
Guk gure teknologiarekin igortzen dugu,
05:19
not only a single data stream,
127
304000
2000
datu-fluxu soila ez ezik,
05:21
we transmit thousands of data streams
128
306000
2000
baita mila data-fluxu ere
05:23
in parallel,
129
308000
2000
paraleloan,
05:25
at even higher speeds.
130
310000
2000
eta abiadura azkarragoan.
05:27
And the technology we have developed --
131
312000
2000
Eta guk garatu dugun teknologia --
05:29
it's called SIM OFDM.
132
314000
2000
SIM OFDM deitzen da.
05:31
And it's spacial modulation --
133
316000
2000
Eta espazioko modulatzea da --
05:33
these are the only technical terms, I'm not going into details --
134
318000
3000
termino teknikoak dira, ez dut xehetasun zehatzik azalduko --
05:36
but this is how we enabled
135
321000
2000
baina horrela lortu genuen
05:38
that light source
136
323000
2000
argi iturriek
05:40
to transmit data.
137
325000
3000
datuak igortzea.
05:43
You will say, "Okay, this is nice --
138
328000
3000
Zuek esango duzue: "Aizu, hau oso polita da--
05:46
a slide created in 10 minutes."
139
331000
2000
10 minututan sortutako aurkezpena."
05:48
But not only that.
140
333000
2000
Baina ez da hau bakarrik.
05:50
What we've done
141
335000
2000
Guk egin duguna da
05:52
is we have also developed a demonstrator.
142
337000
3000
prototipo bat garatzea.
05:55
And I'm showing for the first time in public
143
340000
2000
Eta lehenengo aldiz publikoki erakusten ari naiz
05:57
this visible light demonstrator.
144
342000
2000
argi ikusgaiaren igorpenaren prototipoa.
05:59
And what we have here
145
344000
2000
Eta hemen daukaguna
06:01
is no ordinary desk lamp.
146
346000
3000
ez da idazmahaiko argi arrunta.
06:04
We fit in an LED light bulb,
147
349000
2000
LED fokua jartzen dugu,
06:06
worth three U.S. dollars,
148
351000
3000
3$ balio duen fokua,
06:09
put in our signal processing technology.
149
354000
2000
eta gure datu-prozesatzeen teknologiari konektatzen diogu.
06:11
And then what we have here is a little hole.
150
356000
3000
Eta gero hemen daukaguna zulo txiki bat da.
06:14
And the light goes through that hole.
151
359000
2000
Eta argiak zulo hori zeharkatzen du.
06:16
There's a receiver.
152
361000
2000
Hargailu bat dago.
06:18
The receiver will convert these little, subtle changes in the amplitude
153
363000
3000
Hargailuak bihurtuko ditu guk anplitudean
06:21
that we create there
154
366000
2000
sortutako aldaketa txiki eta mehe horiek
06:23
into an electrical signal.
155
368000
2000
seinale elektriko.
06:25
And that signal is then converted back
156
370000
2000
Eta seinale elektriko hori bihurtzen da bueltan
06:27
to a high-speed data stream.
157
372000
2000
abiadura-handiko datu-fluxu.
06:29
In the future we hope
158
374000
2000
Gerorako espero dugu
06:31
that we can integrate this little hole
159
376000
2000
zulo txiki hau integratu ahal izatea
06:33
into these smart phones.
160
378000
3000
smartphone hauetan.
06:36
And not only integrate a photo detector here,
161
381000
3000
Eta fotoi detektagailu integratzea ez ezik,
06:39
but maybe use the camera inside.
162
384000
3000
baita kamara integratua erabiltzea ere.
06:43
So what happens
163
388000
2000
Eta zer gertatzen da
06:45
when I switch on that light?
164
390000
3000
nik argia pizten dudanean?
06:50
As you would expect,
165
395000
2000
Espero genuen bezala,
06:52
it's a light, a desk lamp.
166
397000
2000
argia da, idazmahaiko argia.
06:54
Put your book beneath it and you can read.
167
399000
3000
Jar ezazue liburua azpian
eta irakurri ahal izango duzue.
eta irakurri ahal izango duzue.
06:57
It's illuminating the space.
168
402000
2000
Espazioa argitzen ari da.
06:59
But at the same time, you see this video coming up here.
169
404000
4000
Baina aldi berean, bideoa ikusten ari zarete hemen.
07:03
And that's a video, a high-definition video
170
408000
3000
Eta bereizmen handiko bideoa da
07:06
that is transmitted through that light beam.
171
411000
2000
argi-izpi horien zehar igorrita.
07:08
You're critical.
172
413000
2000
Eszeptikoak zarete.
07:10
You think, "Ha, ha, ha.
173
415000
2000
Pentsatzen ari zarete: "Ja, ja, ja.
07:12
This is a smart academic doing a little bit of tricks here."
174
417000
3000
Hemen daukagu akademiko azkar bat trikimailuak egiten."
07:15
But let me do this.
175
420000
3000
Baina hau egiten badut.
07:19
(Applause)
176
424000
5000
(Txaloak)
07:24
Once again.
177
429000
3000
Berriro.
07:27
Still don't believe?
178
432000
3000
Oraindik ez duzue sinesten?
07:30
It is this light
179
435000
2000
Argia da
07:32
that transmits this high-definition video in a split stream.
180
437000
3000
bereizmen-handiko bideoa igortzen duena banandutako fluxuan.
07:36
And if you look at the light,
181
441000
3000
Eta begiratzen badiozue argiari,
07:39
it is illuminating as you would expect.
182
444000
2000
argitzen ari da zuek espero zenuten bezala.
07:41
You don't notice with your human eye.
183
446000
2000
Ezin da nabaritu zuen begiekin.
07:43
You don't notice the subtle changes in the amplitude
184
448000
3000
Ezin dira nabaritu aldaketa meheak anplitudean
07:46
that we impress onto this light bulb.
185
451000
3000
zeintzuk guk inprimatzen ditugun foku gorian.
07:49
It's serving the purpose of illumination,
186
454000
2000
Argitzeko baliagarria da,
07:51
but at the same time, we are able to transmit this data.
187
456000
3000
baina aldi berean, datuak ere igor ditzakegu.
07:54
And you see,
188
459000
2000
Eta ikusten duzuen bezala,
07:56
even light from the ceiling comes down here to the receiver.
189
461000
3000
baita sabaiko argia ere hargailura heltzen da.
07:59
It can ignore that constant light,
190
464000
3000
Berak argi iraunkor hori baztertzen du,
08:02
because all the receiver's interested in
191
467000
2000
hargailuari interesatzen zaiona dira
08:04
are subtle changes.
192
469000
3000
aldaketa meheak.
08:09
You also have a critical question now, and
193
474000
2000
Noizean behin galdera kritikoak egiten dizkidate,
08:11
you say, "Okay,
194
476000
2000
eta diote: "Bale,
08:13
do I have to have the light on all the time
195
478000
2000
argia piztuta mantendu behar dut denbora osoan
08:15
to have this working?"
196
480000
2000
hau ibiltzeko?"
08:17
And the answer is yes.
197
482000
2000
Eta erantzuna da baietz.
08:19
But, you can dim down the light
198
484000
4000
Baina, argia moteldu daiteke
08:23
to a level that it appears to be off.
199
488000
2000
maila batera non amatuta dagoela dirudi.
08:25
And you are still able to transmit data -- that's possible.
200
490000
3000
Eta baldintza horiekin datuak igor daitezke -- posiblea da.
08:28
So I've mentioned to you the four challenges.
201
493000
3000
Beraz, lau erronkak aipatu dizkizuet.
08:31
Capacity:
202
496000
2000
Ahalmena:
08:33
We have 10,000 times more spectrum,
203
498000
2000
10.000 mila aldiz baino espektro handiagoa daukagu.
08:35
10,000 times more LEDs
204
500000
2000
10.00 aldiz baino LED gehiago
08:37
installed already in the infrastructure there.
205
502000
2000
azpiegituran jadanik jarrita.
08:39
You would agree with me, hopefully,
206
504000
2000
Espero dut nirekin ados izango zaretela,
08:41
there's no issue of capacity anymore.
207
506000
2000
ez da inondik inora ahalmen arazorik izango.
08:43
Efficiency:
208
508000
2000
Eraginkortasuna:
08:45
This is data through illumination --
209
510000
2000
Argiztapenaren bidez igorritako datuak dira --
08:47
it's first of all an illumination device.
210
512000
2000
lehenengo eta behin argiztapen gailua da.
08:49
And if you do the energy budget,
211
514000
3000
Eta energia-kostua kontuan hartzen baduzue,
08:52
the data transmission comes for free --
212
517000
2000
datu-igorpena dohainik da --
08:54
highly energy efficient.
213
519000
2000
energia-eraginkortasun handia.
08:56
I don't mention the high energy efficiency
214
521000
2000
Ez dut LEDen energia-eraginkortasun aipatu nahi
08:58
of these LED light bulbs.
215
523000
2000
LED foku goriena, hain zuzen ere.
09:00
If the whole world would deploy them,
216
525000
2000
Mundu osoan jarriko balira,
09:02
you would save hundreds of power plants.
217
527000
3000
indar planta asko aurreztu genitzake.
09:05
That's aside.
218
530000
2000
Hori aparte da.
09:07
And then I've mentioned the availability.
219
532000
2000
Eta gero erabilgarritasuna aipatu dut.
09:09
You will agree with me that we have lights in the hospital.
220
534000
3000
Ados egongo zarete ospitaletan argiak dauzkagula.
09:12
You need to see what to do.
221
537000
2000
Beharrezkoa da zer egin ikusi ahal izatea.
09:14
You have lights in an aircraft.
222
539000
2000
Hegazkinetan argiak daude.
09:16
So it's everywhere in a day there is light.
223
541000
2000
Leku guztietan argiak daude.
09:18
Look around. Everywhere. Look at your smart phone.
224
543000
3000
Zuen inguruan. Leku guztietan.
Begira ezazue zuen smartphonetan.
Begira ezazue zuen smartphonetan.
09:21
It has a flashlight, an LED flashlight.
225
546000
2000
Flash bat dago, LED flash bat.
09:23
These are potential sources for high-speed data transmission.
226
548000
4000
Hori guztiak abiadura handiko datu-igorpenerako iturria izan daitezke.
09:27
And then there's security.
227
552000
3000
Eta gero, segurtasuna.
09:30
You would agree with me
228
555000
2000
Nirekin ados egongo zarete
09:32
that light doesn't penetrate through walls.
229
557000
3000
argiak ez dituela hormak zeharkatzen.
09:35
So no one, if I have a light here,
230
560000
2000
Orduan argi bat badaukat hemen,
09:37
if I have secure data,
231
562000
2000
segurtasun handiko datuak baditut,
09:39
no one on the other side of this room through that wall
232
564000
2000
gela honetaz bestalde inork ezin du
09:41
would be able to read that data.
233
566000
2000
datu horiek irakurri hormaren zehar.
09:43
And there's only data where there is light.
234
568000
3000
Eta datuak daude argia piztuta dagoenean soilik.
09:46
So if I don't want that receiver to receive the data,
235
571000
4000
Orduan ez badut nahi hargailuak datuak igortzerik,
09:50
then what I could do,
236
575000
4000
egin dezakedana da
09:54
turn it away.
237
579000
3000
horrela mugitzea.
09:57
So the data goes in that direction, not there anymore.
238
582000
2000
Datuak harantz doaz, ez hona.
09:59
Now we can in fact see where the data is going to.
239
584000
3000
Orain ikus dezakegu nora doazen datuak.
10:05
So for me,
240
590000
3000
Orduan, niretzat
10:08
the applications of it,
241
593000
3000
teknologia honen erabilerek
10:11
to me, are beyond imagination at the moment.
242
596000
4000
irudimena gainditzen dute oraintxe bertan.
10:15
We have had a century of very nice, smart application developers.
243
600000
4000
Mende oso bat izan dugu zentzuzko aplikazioen garatzaileekin.
10:19
And you only have to notice, where we have light,
244
604000
3000
Eta orain konturatu behar dugu non dagoen argia,
10:22
there is a potential way to transmit data.
245
607000
3000
badago datuak igortzeko ahalmena.
10:25
But I can give you a few examples.
246
610000
3000
Adibide batzuk eman diezazkizueket.
10:28
Well you may see the impact already now.
247
613000
3000
Agian, ikus dezakezue eragina jadanik.
10:32
This is a remote operated vehicle
248
617000
2000
Hau da urrutiko kontrolaz burututako ibilgailua
10:34
beneath the ocean.
249
619000
2000
itsaspekoa.
10:36
And they use light to illuminate space down there.
250
621000
3000
Eta argia erabiltzen dut hango espazioa argitzeko.
10:39
And this light can be used to transmit wireless data
251
624000
2000
Eta argi hori haririk gabeko datuak igortzeko erabil daiteke
10:41
that these things [use] to communicate with each other.
252
626000
3000
ibilgailuen elkarrekiko komunikazioak errazteko.
10:44
Intrinsically safe environments
253
629000
2000
Berezko ingurugiro seguruak
10:46
like this petrochemical plant --
254
631000
2000
instalazio petrokimika hau bezala --
10:48
you can't use RF, it may generate antenna sparks,
255
633000
3000
ezin da irrati frekuentziarik erabili,
antenetan txinpartak sor litezkeelako,
antenetan txinpartak sor litezkeelako,
10:51
but you can use light -- you see plenty of light there.
256
636000
3000
baina argia erabil daiteke -- argi asko ikusten da han.
10:54
In hospitals,
257
639000
2000
Ospitaletan,
10:56
for new medical instruments;
258
641000
3000
medikuntzaren gailu berrietarako;
10:59
in streets for traffic control.
259
644000
3000
kaleetan trafikoa kontrolatzeko.
11:02
Cars have LED-based headlights, LED-based back lights,
260
647000
3000
Kotxeek badituzte LED argiak aurrean eta atzean,
11:05
and cars can communicate with each other
261
650000
2000
eta kotxeek elkarrekiko komunikazioa izan dezakete
11:07
and prevent accidents
262
652000
3000
eta istripuak saihets ditzakete
11:10
in the way that they exchange information.
263
655000
3000
haien arteko informazioa trukatzen.
11:13
Traffic lights can communicate to the car and so on.
264
658000
3000
Semaforoek kotxeari informazioa eman ahal diote, eta abar.
11:16
And then you have these millions of street lamps
265
661000
3000
Eta badago kaleko milioika argi
11:19
deployed around the world.
266
664000
3000
mundu osoan zehar jarrita.
11:22
And every street lamp could be a free access point.
267
667000
2000
Eta kaleko argi bakoitza doaneko sarbide-puntu bat izan liteke.
11:24
We call it, in fact, a Li-Fi,
268
669000
2000
Egiatan Li-Fi deitzen dugu,
11:26
light-fidelity.
269
671000
2000
argi-fidelitatea.
11:28
And then we have these aircraft cabins.
270
673000
4000
Eta badaude hegazkinen kabina horiek.
11:32
There are hundreds of lights in an aircraft cabin,
271
677000
4000
Ehunka argi daude hegazkinaren kabina batean,
11:36
and each of these lights
272
681000
2000
eta argi bakoitz hori
11:38
could be a potential transmitter of wireless data.
273
683000
3000
haririk gabeko datuen igorle potentziala izan liteke.
11:41
So you could enjoy your most favorite TED video
274
686000
3000
Beraz zuen gustukoen TED bideoak gozatu zenitzakete
11:44
on your long flight back home.
275
689000
2000
zuen etxerako bidaia luzeetan.
11:46
Online life. So that is a vision, I think, that is possible.
276
691000
3000
Online bizitza.
Beraz, posible den ikuspegia dela uste dut.
Beraz, posible den ikuspegia dela uste dut.
11:55
So, all we would need to do
277
700000
2000
Beraz, guk egin beharko duguna da
11:57
is to fit a small microchip
278
702000
2000
mikrotxip txiki bat egokitzea
11:59
to every potential illumination device.
279
704000
3000
argiztapen potentzialaren gailu bakoitzera.
12:02
And this would then combine
280
707000
3000
Eta honek elkartuko lituzke
12:05
two basic functionalities:
281
710000
2000
bi funtsezko eginkizun:
12:07
illumination and wireless data transmission.
282
712000
2000
argiztapena eta haririk gabeko datu igorpena.
12:09
And it's this symbiosis that I personally believe
283
714000
3000
Eta hau da sinbiosia. Nik uste dut
12:12
could solve the four essential problems
284
717000
2000
lau funtsezko arazoak konpon litzakeela
12:14
that face us in wireless communication these days.
285
719000
3000
haririk gabeko komunikazioko esparruan.
12:17
And in the future,
286
722000
2000
Eta geroan,
12:19
you would not only have 14 billion light bulbs,
287
724000
3000
14.000 milioi foku gori izan ez ezik,
12:22
you may have 14 billion Li-Fis
288
727000
3000
14.000 milioi Li-Fi ere izango dituzue
12:25
deployed worldwide --
289
730000
2000
mundu osoan zehar jarrita --
12:27
for a cleaner, a greener,
290
732000
2000
etorkizun garbiago, berdeago
12:29
and even a brighter future.
291
734000
2000
baita argiagoa ere eskuratzeko.
12:31
Thank you.
292
736000
2000
Mila esker
12:33
(Applause)
293
738000
12000
(Txaloak)
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