Visualization of RFID tags

How do you visualize something that is invisible? That’s the challenge that Timo Arnall, Jack Schulze, and Einar Sneve Martinussen faced when they decided to give designers a better insight into RFID technology.

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Picture of Pumapills5 achievements

+11 1. Pumapills commented 12 years ago

Simply amazing ! :O
Picture of abbahh31 achievements

+5 2. abbahh commented 12 years ago

can someone explain me what they mean with this I don't get it I'm to dumb :(|)
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-11 3. Vaithan commented 12 years ago

Expensive tech for something bar-codes are still capable of doing. Who really cares what the read field looks like?
Picture of Teqskater32 achievements

+17 4. Teqskater commented 12 years ago

#3. Barcodes work with a line. This means you need to have it in a specified orientation before it reads. a RFID tag can be read from a much further distance. I think even 100's of meters. and in any orientation.

#2 RFID = Radio Frequency IDentification. Basicly you have RFID tags. That can hold information. And you have the readers. Who read the information. Most of the time they are used to enable you acces. For example when you are in the proximity of a door the door unlocks. Or you can automaticly pay when you get out of a bus. The last one is integrated in holland right now but it's not working a 100% properly.

There are systems where the tags also can read information instead of send it out to a reader.

This is a general insight in the RFID system. Not everything.

BTW its handy to know where the fields could be or what they look like. This wil help some people to understand it. You make something abstract concrete.

Hope this clearify's the video a bit. And sorry if my English is not clear enough.
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-5 5. irishgek commented 12 years ago

1:40.....otherwise known as blueballs :P
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-8 6. fulmar commented 12 years ago

wat a load of wanky shit
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+2 7. AL7AIR commented 12 years ago

#4 Not 100s of meters, best case scenario RFID-tag and -reader combinations top out at around 120 feet / 40 meters. Most RFID tags however are used in NFC environments, with the N standing for Near and the rest for Field Communication. The Oyster Card shown in the video (prepaid public transportation system in the UK) needs to be within 2 inches / 5 centimeters of a terminal to register on a bus for example.
Picture of ValdeLevis27 achievements

+4 8. ValdeLevis commented 12 years ago

#4 Your brief summery of RFID and the comparison to Bar Code is quite good. The effective read distance is determined by the reader, but I believe your statement of hundreds of meters is a little optimistic, for now anyway.
RFID is why my wallet incorporates Faraday shielding for several years now. For those of you that have half a clue, take the foil out of your hat and put it around your cards.
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+5 9. WildMonkey commented 12 years ago

Why would anyone want to move society in a direction where you're constantly transmitting everything about you?
Constantly transmitting your bank information, medical information, ID, etc... all of that seems kinda 1984 to me, especially when you know that pickpockets no longer will have to pick your pocket, just stand next to you.
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+1 10. abbahh commented 12 years ago

#4 so if I go in the bus in my country I would pay? I thought we had to scan a card in front of a reader I did it once and I had to put it a milimeter or something away from it or it couldn't read it so it sucks actually
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+3 11. sux2bu commented 12 years ago

For those who do not understand what #7 is refering to,here is a news segment on the RFID info theft danger......
Picture of ValdeLevis27 achievements

+2 12. ValdeLevis commented 12 years ago

That's a good example #11, exactly what I was alluding to, but don't pay what those crooks charge for those wallets. I've priced a few of them and they're using fear to price gouge. I carry a wallet made of duct tape, double shielded with aluminium and copper foil. It cost me about $16.00 to make four of them, as opposed to $40.00 to buy one.
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+2 13. theWatcherAlpha commented 12 years ago

RFID is simply a small antenna that transmitted a short range radio signal. Therefore, it is a Electromagnetic field that we are seeing in this video. Although this is a clever way of demonstrating the emitted field, the field can be calculate using Maxwell equations and generated computer wise. This would be an useful tool in reverse engineering the device though.