Scientists Print Cheap RFID Tags On Paper 67
judgecorp writes "French scientists have found a way to make RFID tags cheaper by printing them on paper. [Abstract] This could allow wider tagging, and combine with technologies such as printed memory." These printed RFID tags use aluminum, "a lot less expensive than copper or silver, which are used in some types of RFID tag. This is good news for inventory users operating millions of RFID tags in their systems."
Dynamic RFID Ink? (Score:2)
Is there cheap and low power tech for maintaining an RFID "display", the info on which can be changed programatically, and read from many meters across a building? Bonus points for the low power consumption coming from "digital ink" that consumes power only when changing the state of the display, and none while maintaining it.
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Well, e-ink is a tech that uses electrostatics to position and maintain the display states, but it seems to me that magnetics, possibly optics, or even microfluidics - or something else - could be used to do it. What they have in common is digital control, so "digital ink". But probably e-ink is the method an RFID display would use, since it's the most mature and cheap.
The Kindle is pretty cheap, partly because it uses e-ink. An e-ink RFID display with only 64 pixels seems pretty cheap, depending on the exp
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E-ink is not actually ink at all. It is a marketing term for bi-stable liquid crystal. So, no, you aren't going to magically print e-ink on anything and have a display.
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I do believe you missed the GP's point.
Doc Ruby seems to be asking for an e-ink display tied to an RFID controller. The changing of the visible information would happen wirelessly, and using low amounts of power so as to remove the need for batteries. If such labels can be made cheaply enough. for instance, a box in a warehouse can be labeled with where it's supposed to be, as soon as it's assigned to go there. Place an order from NewEgg, Amazon, or any other technology-loving distributor, and your shipment
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Good idea. Then some bright spot will stand outside the warehouse with an RFID writer and a pringles can and re-write all the shipping labels to his house! :-)
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That's already a risk with rewritable static RFID tags. I'm surprised we haven't seen such an exploit in the wild already reported on Slashdot.
solution seeks problem (Score:2)
Seems like an overcomplicated way to do it. Each box has its own identifier anyway, so when an order is confirmed you just need to tell someone (or something) to put boxes X Y & Z on truck 123.
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I think you're right about inventory control. But I'm interested in cheap, low power, reliable and possibly mobile distributed sensors that use RFID as the transmission network back to the sensor host.
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You're right about the HW I'm describing, but I'm talking about the dynamic RFID tag as a sensor network device. For example, every window and door could have one whose RFID digits are flipped only whenever it's opened/closed. Then a RFID reader would poll them periodically (or continuously if desired). The reader is line powered, but the sensors/displays are battery powered (these might even be recharged by the mechanical power opening/closing the door/window, even if that's a human hand). Presence detecti
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Have you ever worked with RFID readers? it's fantastically difficult to get them to work under optimal conditions, much less having the reader far enough away from the tags to make it worth not using wires or powered sensors. Add to the equation powering a sensor from an RF field (limited to 4W EIRP at 908-928 MHz) and you're pretty much doomed.
http://www.enigmatic-consulting.com/Communications_articles/RFID/Link_budgets.html [enigmatic-consulting.com]
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I haven't worked with RFID sensors, so I'm enjoying the feedback in this discussion from people who have.
I wasn't talking about harvesting the RFID reader energy to power the sensors, though that's interesting even though you say it's not enough. I was talking about powering the sensors and their RFID display by harvesting the mechanical energy of the moving door/window they're sensing. Which, since I have worked with distributed wireless sensors other than RFID (Zigbee, some other standards, some proprieta
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I worked on a project some time ago that studied the feasibility of using RFID tags in a whole host of industrial and commercial settings. Our findings where that many of the use cases that RFID was expected to solve were not possible to the level of reliability that most customers expected. I can't go into details of the customers, but one scenario was attempting to track goods on a pallet. Each item on the pallet would have a tag and as the pallet was picked up by a reader-enabled forklift, all of the tag
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This is all very interesting. Do you think that my RFID scenario, where the tags are immobile and read by immobile readers, can get to 99% reliability? If the tags and readers are installed in places they're reliably read and then left there. If the readers have to read tags through drywall, studs and maybe cinder block, across up to 30 meters? How about also through concrete floors? Across up to 100m?
There's probably not a lot of use for that scenario with static tag values. But with dynamic tag values, if
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For a non battery-assisted tag at 30m through free space with a non-pinpoint beam antenna* you'd be hard-pressed to get 10% [yes, 10%] read for a tag that's < $1 and small. At 100m, no chance. I hate to say it, but I think your idea of RFID as a sensor net is DOA both from the physics involved and the expense (RFID readers/antennas/coax/etc are not cheap).
Look up the power link budget of RFID - the fact that they work at all is astonishing. The power that the RFID reader gets back from the tag falls off
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Thanks for the reality. At least that condemns to fiction the panopticon dystopia where The Man tracks us all in the streets with 3D RFID locators against the swarm of RFID tags in the products and clothes we wear/carry.
The Digi Zigbee sensors are "ready to go", but need more parts to be complete, right? A temperature sensor node would need at least the $17 DIP, PCB, battery/holder, enclosure. Final cost is going to be something like $25, right? Any chance that in qty 1000 that will be under $10 by say 2015
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I wouldn't say the idea of "The Man" tracking us has been put to bed. Who would've thought there'd be thousands of CCTV cameras deployed in London? They are/were expensive, fragile, and need lots of bandwidth. That didn't stop a gov't with a nearly unlimited budget and a penchant for snooping.
Tracking humans as they walk along a street with RFID tags in their clothes? Easy, since a single read from a 'registered' garment will suffice to ID the wearer. Extra reads are gravy. Garments are most often on the o
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Oh, Big Brother is real, I just thought maybe RFID wasn't His way. NYC just saw reported [nydailynews.com] that its 3/4 $billion "first responder" wireless radio system is such a boondoggle the city tried to sell it to Northrup Grumman and lease it back, but "at least" the Department of Transportation is using it to monitor cars by imaging their license plates and databasing them. The sell/leaseback attempt would have gotten Northrup to lease the same system to other private users. So Bloomberg created a wireless citywide su
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E-ink is not a bi-stable liquid crystal. It's a multicellular suspension of microcapsules of electrically charged ink, with a layer of electrodes that can be charged to cause migration of the desired colour to the surface.
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No, the other reply [slashdot.org] is correct: I'm not talking about printing a dynamic RFID display. I'm talking about e-ink (or other techniques) simply because they're so low power, and seem otherwise suitable for the application.
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Long range RFID is pretty much 900Mhz (ish). To get the chip to work at ultra low power levels it has to be pretty small. We are not talking Intel top of the line foundry but 90nm or better. Bottom line, no way to print that chip.
As for the antenna - you can print that but the variations in printing (like 1/64 of an inch makes attaching chips more expensive. The attach costs they are targeting is .25 of a cent per antenna. To achieve these numbers speed is king.
Also, for maximum performance (best ant
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I'm not looking to print the logic that maintains the display, or the display. That would be awesome, and cheap, but the "ink" I'm talking about isn't really ink. It's just called that because it's a "set and forget" device, like ink is, even though it's dynamic (resetable), addressable - just not as quickly as displays whose state must be actively maintained. For example e-ink displays in the (monochrome, for simplicity) Kindle are an array of tiny balls, black one one hemisphere and white on the other, th
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I mean, they're just the physical equivalent of web-cookies, right?
Exactly! And once they are on money it will make accounting so much simpler.
Of course if you were engaged in something you would rather not have tracked and traced remotely then gold and jewelry will be a more attractive means of exchange...
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Unlike web cookies, you won't get that attached to you when just looking at something.
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Nope.
Bad news for the Tin Foil Hat crowd (Score:2)
The day is soon coming (Score:1)
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Re:The day is soon coming (Score:4, Informative)
Re:The day is soon coming (Score:4, Interesting)
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Why stop there? If we put RFID tags on all the bills and commercial correspondence as well, then the identify thieves could just do their thing driving by, without even having to get out of their cars to dig through the trash! What a timesaver that would be. Might even go a ways toward making the profession a little more respectable-- more along the lines of, say, drug dealers. Or wall-street bankers.
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identify thieves could just do their thing driving by, without even having to get out of their cars to dig through the trash! What a timesaver that would be. Might even go a ways toward making the profession a little more respectable -- more along the lines of, say, [...] wall-street bankers.
I don't understand. It sounds like a massive step down to me.
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Your approach sounds like too much work.
I'd suggest instead edible rfid tags [rfidjournal.com] with a scanner affixed to your toilet bowl.
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The Awkward future moment... (Score:1)
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What, you think in the future the US still won't have adapted to a modern electronic card payment system, like EMV or even Contactless EMV?
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when I can just push my grocery cart through a halo and slide my card.
Uh, don't you mean a set of HORNS and not a halo? After all, RFID is the mark of the beast!
yay! (Score:2)
With this new affordability, I will be able to use a strong sensor array and cheap tags to track the gremlins that keep hiding my wallet, keys, and remote!
But but but! (Score:5, Funny)
With this and the last story, how am I supposed to go paperless now!
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The next upcoming fad will be to go silicon-less! The silicon free office will be written up in all the business magazines. There will be slashdot articles of the sort "write the name of the product on paper and tape it to the box, saving yourself the hassle of an RFID tag!"
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Just be glad you didn't try to go paperless like I did. If you don't invest in a bidet, the bathroom can get messy.
Airport baggage handling (Score:1)
RFID has an obvious application in baggage handling systems, such as at airports. One of the deterrents has been cost. Hopefully that will change with this technology.
hisssss or zap (Score:2)
OT, but still important (Score:5, Insightful)
So, How long before... (Score:1)
Paging Cory Doctorow to find my remote (Score:2)
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Always good to check where you've left the bong before answering that unexpected knock at the door.
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http://www.cisco.com/en/US/products/ps6386/tsd_products_support_series_home.html [cisco.com]
Properly configured Cisco 2700-series wireless location appliance, 6500-series wireless lan controller, and certain Cisco AP's together can locate RFID tags, and track them using a wireless control server.
That came out in 2006 I think...
Came close to recommending it as an absentee system for private schools, but we couldn't overcome the practicalities of students swapping shoes, ties, bags, students cards, etc. All a student nee
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As represented in the book, the storage has pick-ups, so it knows what the things are that have been stored in it. Equipped with an indicator light, the storage doesn't even need to know where it is - it just blinks it's light when you send a signal corresponding to the item you are looking for.
Have you been to Primark recently? (Score:2)
It won't be long before shoplifters are stealing clothes for the scrap value of the tags.
Actually, have you been to [Primark|Kmart] recently...
Puts on hat. (Score:2)
Does this mean they will be easier to wash out of your clothes?