Wireless data from every light bulb
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3. c0mmanderKeen commented 13 years ago
Incredible!
I hope this tech gets the attention it deserves... the possibilites are endless, and it simply makes perfect sense !
Great job
I hope this tech gets the attention it deserves... the possibilites are endless, and it simply makes perfect sense !
Great job
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4. orion commented 13 years ago
There's a reason why this never caught on (there were similar technologies for wireless routers out there for years). You need a line-of-sight. Or at least good white or reflective surfaces around. Every time your roommate passes by or you shift your head, the connection drops. It's basically no different than having an optic cable running from your lightbulb to your computer.
And you still have only one channel per LED, no matter how wide the spectrum is.
This idea is severely limited and in most cases it has no advantage over wired network.
And you still have only one channel per LED, no matter how wide the spectrum is.
This idea is severely limited and in most cases it has no advantage over wired network.
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6. badasspuppy commented 13 years ago
#4, #5: The guy's demonstrating this with a projector in the middle of a room that's lit with normal light. If the whole room were fitted with data transmitting bulbs, you could have the receiver tucked under a chair and the slightest bit of reflected light that would bounce off the carpet on the floor would carry the signal and work.
The only problem here is transmitting data. The lights bring data to you, but you have to send data too to request that youtube video.
The only problem here is transmitting data. The lights bring data to you, but you have to send data too to request that youtube video.
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7. orion commented 13 years ago
#6 if you bring internet to every lightbulb, this is much more complicated than just plugging it into the computer (and modulating the entire power supply is just dangerous and unreliable). And you must still be careful not to cover the receiver with your hand or something. I'm just saying this idea is putting unnecessary additional stage of transmission and brings nothing new.
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8. WildMonkey commented 13 years ago
#6 And how is that more efficient than wifi?
This is a joke, it will never catch on, it just creates more complexity to an existing problem.
This is a joke, it will never catch on, it just creates more complexity to an existing problem.
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9. Oddi commented 13 years ago
Humanity was close to this technological milestone from the time of fiber optics already. Data through illumination aka wireless optics. Simple, efficient and harmless. Within some years we'll communicate through light with everything. Thumbs up for ppl who make this happen.
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11. tiggfigg commented 13 years ago
Sorry I don't speak German.
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13. GJJACKSON1968 commented 13 years ago
And God said... "Let there be light"
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14. loadme commented 13 years ago
he makes some good points but, but #12 brings up important issues as well.
in my opinion you only can use this when part of a hybrid system.
if you turn around, move your phone in a box, in your trousers or whereever,
it would be offline.
the infrastructure is NOT there. you would still need to modify 14 drillion light bulps.
interessting in a supporting way. maybe as an extender for hot spots. but otherwise i really dont see this working
in my opinion you only can use this when part of a hybrid system.
if you turn around, move your phone in a box, in your trousers or whereever,
it would be offline.
the infrastructure is NOT there. you would still need to modify 14 drillion light bulps.
interessting in a supporting way. maybe as an extender for hot spots. but otherwise i really dont see this working
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15. captain_obvious commented 13 years ago
hmmm maybe handy for future space flights?
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18. badasspuppy commented 13 years ago
#8: how is this better than wifi? how about being harmless? how about being long-range? and simpler? and have more bandwidth?
What about infrastructure? you already have powerline networking, just plug a router in your bedroom, another in your living room, and you have a network. This isn't that much different, except it's wireless.
now #12 posted a good question: windows. Anyone outside your home will be able to catch the info you're throwing around aiming a "camera" at your window. But of course this has to have encryption, just like you have on wifi.
What about infrastructure? you already have powerline networking, just plug a router in your bedroom, another in your living room, and you have a network. This isn't that much different, except it's wireless.
now #12 posted a good question: windows. Anyone outside your home will be able to catch the info you're throwing around aiming a "camera" at your window. But of course this has to have encryption, just like you have on wifi.
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19. johannsommer commented 13 years ago
I like the idea very much and hope, that soon according devices are available.
As mentioned above, the back channel has to be designed the same way.
It seems to be obvious, that the system is similar in usage like bluetooth or WLan and mostly not like UMTS.
Because of this, perhaps not the bandwith is the most important advantage, but the potential privacy.
A further important advantage is the choice of the communication partner not by frequency, but by geometrical position.
By this a channel can be opened by pointing the device to a visible light source intentionally and without dealing the frequency before starting communication.
Furthermore the possibility to bundle light to a thin ray and by this to do communication over certain distances without giving others a chance to read the data, except positioning themselves in exactly this ray, should be very interesting (when air is clean).
As mentioned above, the back channel has to be designed the same way.
It seems to be obvious, that the system is similar in usage like bluetooth or WLan and mostly not like UMTS.
Because of this, perhaps not the bandwith is the most important advantage, but the potential privacy.
A further important advantage is the choice of the communication partner not by frequency, but by geometrical position.
By this a channel can be opened by pointing the device to a visible light source intentionally and without dealing the frequency before starting communication.
Furthermore the possibility to bundle light to a thin ray and by this to do communication over certain distances without giving others a chance to read the data, except positioning themselves in exactly this ray, should be very interesting (when air is clean).
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22. PrivateSpanky commented 13 years ago
Awesome, now my tinfoil suit can reflect more data!
3
23. sameer23 commented 6 years ago
If you want to pair a device with another first turn on bluetooth or follow https://bluetoothwindows10.com/ the guideline on it.
+6 1. abzsid commented 13 years ago