Alternative To QR Code Uses NFC and Cheap Rectennas
An anonymous reader writes "The BBC reports researchers in Korea have developed a technology that can be used as a viable alternative to QR codes. Made of plastic and electronic ink, the rectennas cost less than one penny each to produce and use the NFC standards for wireless radio communication to devices. They are seen as a cheap, easy-to-print and environmentally friendly way to overcome the limitations and inconvenience of QR codes, the usage of which has greatly increased in the last few years."
Rectannas is just not an appealing word...
The entire point of a QR-Code is that it can be placed where-ever anything visual can be placed. You can put a QR code on a billboard, on a streetsign, on a television image, in a newspaper, on a bus ad...
You are not alone. This is not normal. None of this is normal.
Ouch.
The great thing about QR code is all you need is a cheap crappy printer and cheap crappy camera to work. This will die sooner or later. Should have just embrace the QR code.
They are seen as a ... environmentally friendly way to overcome the limitations and inconvenience of QR codes...
I'm mystified how that works. Its not like QR codes are inherently toxic by shape, like prions, nanoparticles, or asbestos fibers.
The only QR code I've ever used for a "real" purpose is holding my phone up to the screen to scan a google authenticator QR code. I'm not sure how that would translate to a NFC solution like this... have to print out on a 3-d printer or something?
"Science flies us to the moon. Religion flies us into buildings." - Victor Stenger
I had no idea that we needed an alternative to QR codes. For that matter, I had no idea that we needed QR codes either.
Most of the people I know repeatedly ask what those funky looking squares are, despite me having explained it to them previously. Of the people that I know who do know what QR codes are. most scanned the codes a couple of times when they were first discovered. They rarely if ever bother again after that, myself included.
I have even less interest in NFC QRtennas. In fact, I have sufficient concern over NFC itself that, if a phone does not offer the ability to turn NFC off completely, I won't buy it.
Regardless; I had no idea that we needed an alternative to QR codes.
limitations and inconvenience of QR codes
Which are what exactly?
The only limit I can imagine is the amount of data. Since they typically only store a URL, this is hardly an issue.
And how does this "Rectenna" relate to RFID?
Slashdot social media options: AIM, ICQ, Yahoo, Jabber and Mobile Text. Why no MySpace?
Whatcha talkin bout Willis?
I just want to know how much malware I can pack into one. Runs any javascript? Pretty please?
http://xkcd.com/927/
Of course, these "rectennas" aren't really a proper replacement for QR codes, since QR codes work at a distance (depending on size).
I know im in the company of friends when the first posts on this topic are about the goofy name thus rendering the immature joke i was about to make concerning rectums and where to shove antennas obsolete!
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Never thought I'd see that happen.
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rename before marketing
I've built my share of rectennas. None required Cartman's assistance. There is something inherently cool about crystal radios, and the idea that you can print one and store data on it that others can retrieve later will undoubtedly turn out to have applications.
Competing with QR-codes may not be one of them. QR-codes are orders of magnitude cheaper though. Nearly-zero cost if you have to print the entire surface of a can of Sprite anyway. It's hard to see much competition there.
Stick-on NFC tags at a penny a piece might make for a great inventory control system though. The scanner could be angle-independent and easily scan the bottom of devices that are rolling down the conveyor. Assuming the scanners were near equally priced. Tagging a 10k item part inventory in this way and dropping your scan-error rate down an order of magnitude could easily be worth the hundred bucks in tags.
I disabled NFC on my phone. I can easily turn it on if I want the feature. You could wallpaper my house in NFC ad bugs and I'd never know.
For most uses, just a printed URL would surely be better? Data compression is higher using QR codes, but transparency is lower - with all the associated security/privacy/openness issues.
So... reading up on this stuff... it's *very* clear that what they are talking about is an RFID tag.
Yay, put rfid tags everywhere and have everyone tap their phones against them to "receive information". ...and who determines what information is transferred back and forth and what types of exploitable holes are there in their protocol?
WAIT wait wait. What the researcheres in Korea "discovered" is how to PRINT rfid tags with magnetic inks.
Jeezus, this is what you get when you cross marketing droids with non-technical reporters in news organizations.
This whole slashdot article should be deleted. And the BBC should be ashamed, aren't there some PhDs driving cabs that they could hire to cover their technology news stories?
I don't think it'll be a good alternative to QRcodes. QR codes require plain paper, plain ink, and a camera loaded on a smart phone.
QR codes have an edge because they are a free to use standard. and unlike the RF spectrum of the rectennas use, the optical spectrum allows as many QR codes and sensing devices as you can cram together because the optics are simple. The RF equivalent "optics" are a bit more. I also see a problem climbing the side of a building to get to the rectenna's near field range.
- Tjp
I am in wallow with my inner money grubbing capitalistic pig. ... Oink!
Places where "nanoparticles", "rectennas", and "electronic ink" just won't work but QR codes are fine:
1) My business card - Scan the code and it can take you to my website or automatically add my information to your contact list. Is Kinko's going to start printing cards with electronic ink?
2) Flyers - I can print out a flyer with a QR code. Hell, gimme some graph paper and a Sharpie and I can build a QR code. I don't think any store-bought inkjet or laser printer will be printing these any time soon.
3) T-shirts - I can advertise my business by either wearing or giving away t-shirts with QR codes silk-screened on them. Will this new rectenna survive even one wash?
4) Billboards - The first word of "NFC" is "Near". How often do you get "near" a billboard? Unless you're tagging it. In which case I am pretty sure you wouldn't care about getting the advertiser's message.
5) Television - I can put a QR code in a television promo (Shazam is doing the same thing, except with audio). I cannot apply electronic ink to your TV so you can easily use your smart device to get more information about my product.
This is purely a "swiping" technology (must be close enough for the radio waves/microwaves reach my phone). I would never have this turned on by default for the same reason I use a hole punch on RFID credit cards; I want control of what I am sending or receiving. So how is this going to help me? I'm either going to manually load up a QR code app, or a rectenna app.
If you think that's cool, check out Touchcode. No need for printed electronics.
http://www.youtube.com/watch?v=UJ20BhyyR9E
QR codes are "enticing" to some people. I recently heard a kid say "Mom! It's a QR code! can I borrow the phone?". Their distinctive appearance is often more important than their ability to carry data, and they are mostly used for marketing. The most interesting applications which are not for marketing are when QR-codes are displayed on a screen, and this NFC tech can't replace that. (There are some valid applications for printed codes, like in museums, but usually it's better to print a URL). If the researchers make a catchy name and a logo for the NFC-based tags, and if NFC becomes more popular, it could replace QR codes in marketing. It's pretty cool tech, but it seems to be a solution looking for a problem.
okay then explain http://www.laurencemartin.org/codeblock2.png the data is not an url by any means
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The number of mobile phones with low-resolution image sensors is going to approach zero over time. There's enough data in a typical smartphone image sensor to pick up subband-coded watermarks in a printed image and very transform-resistant image watermarks have been known science for at least a decade. QR codes, radios, etc. are all unnecessary. Point your phone at the poster and let the image app work out whether there's information embedded in it.
Since this isn't already the norm, there must be a patent that is preventing the progress of the useful sciences here.
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Was your coffee machine made by IBM?
https://www.youtube.com/watch?v=RowwNXKEt4k
Glad they only cost a penny or less to make, but QR codes are free. Well any cost associated with them being solely on the medium they're printed on and usually they are not the main purpose of that medium anyways (such as qr codes on a small advertisement). The one thing though that qr codes are great at is that they are extremely easy to transport or send, physically or electronically. An nfc tag on the other hand may have advantages against qr codes in a physical sense, but you can't email them as you can a pic of a qr code.
Qr codes can hold a lot of information, look at qr version 40. I had it store the Name of artist, band, song title and the entire lyrics to the song Foreplay/long time by Boston. with room to spare (I'm guessing) in just one qr code. Although their was a small snag. I was just barely able to get my gnexus to read it and none of the other smartphones in my house I had access to could read it at all (bionic and a thunderbolt). So yeah that's an issue, but with image quality of smartphone cameras increasing, this shouldn't be much of an issue for very long.
Then nfc has the whole "near" issue. I can take a phone of a large poster or billboard from across the street or something that has a qr on it and scan the photo to read the qr code info. an nfc tag requires me to go up and pretty much touch my phone to the thing, to read it.
so Super cool use of nfc tech and a good way to expand it's usage I think, but it does come with some limitations.
Works great... as long as you can turn it off. Now imagine if your phone was not configured to allow such choices by the user.
"You want to know how to help your kids? Leave them the fuck alone." -George Carlin
Those Rectennas better not have rounded corners, or I smell a lawsuit comming.
I'll see your senator, and I'll raise you two judges.
Return the phone and get a different one? Wow, what a hard problem.
Unless you Think different!(tm)
"You want to know how to help your kids? Leave them the fuck alone." -George Carlin
Why would I bother enabling this hardware and wasting battery. I used my $10 free from Google Wallet to buy a 6-pack and then disabled NFC. I'll re-enable it when/if Google restocks my account with free money.
Take a picture of it and you're instantly taken to the wikipedia page http://en.wikipedia.org/wiki/Cue_cat.
Are you trying to imply that you can't turn off NFC capability in the iPhone?
It works on every device with a webbrowser, no code needed, with the additional bonus of having the user type in your URL by hand. Thas marketing!
QRs are just links that you can't click without launching a specific 'click a QR link' reader. Less of all this please.
He's implying that if apple thought it could make a buck off of it, they'd take the option to turn it off out.
bend like the reed
I thought the QR code thing in advertising was over. I saw more QR codes two years ago than now.
Rectennas? really?
What is the first thought that goes into ones head at first seeing the word 'rectennas'?
Exactly.....this is a poor choice of word that will only cause derision and child-level jokes at every mention of the word.
And on another note, can any Americans here please explain what a 'penny' is? 1c? 5c? 10c? 20c? 50c? a dollar?
Kinda hard, considering the iPhone doesn't even have NFC on it.