Forum for Science, Industry and Business

Sponsored by:     3M 
Search our Site:

 

Better than barcodes

13.08.2002


That bar code on your cereal box holds information read by a laser scanner. It’s not much information, but it’s enough to let the supermarket take your money, keep track of inventory, follow trends in customer preference, and restock its shelves. Scanners and bar codes speed up checkout, but they’ve got a few limitations. The scanning laser needs a direct line of sight to the bar code, and the bar code itself needs to be reasonably clean and undamaged – one reason your cashier might have to swipe that bag of spuds four or five times before the scanner reads it.



Now there’s something better, and it comes out of an Office of Naval Research program that goes back four decades. Very small electric crystal chips can now be embedded into products to provide up to 96 bits of information when they’re read by an electromagnetic scanner. (That’s roughly 6 times as much as bar codes hold. It also meets the new industry standard developed by the MIT-led Auto-ID Center.) These new radio-frequency scanners, unlike the optical ones in most supermarkets today, can read the chip whether they have direct line-of-sight to it or not. And dirt? Ordinary dirt matters not at all.

The chips themselves are so small (less than an inch long with the antenna attached, and only about as thick as a pencil lead) and so simple that they don’t need a power source--it all comes from the scanner. The new chips store enough information to uniquely tag just about every individual manufactured item. In effect, the scanner reads not only the category and model number, but a serial number for the particular item that bears the tag. The tags can be used for all kinds of marking, supply, tracking, inventory management, and logistical tasks. Imagine checking out by just pushing your cart through the supermarket’s door--that’s one of the new possibilities some major retailers are looking at.


From 1962 to 1976, the Office of Naval Research (ONR) sponsored development of "surface acoustic wave (SAW) technology" for filters in electromagnetic systems, electronic warfare surveillance devices, color TV receivers, and other devices of use to the Navy and Marine Corps. The original work was performed at Texas Instruments by Clinton Hartman and Lew Clairborne, who have since spun the technology off into their Texas-based company, RF SAW, Inc.

Just another example of better living through (Navy-sponsored) science.


For more information on the technology, or to interview those scientists involved in SAW research, please contact John Petrik or Gail Cleere at 703-696-5031, or email petrikj@onr.navy.mil or cleereg@onr.navy.mil


Gail Cleere | EurekAlert!
Further information:
http://www.onr.navy.mil/

More articles from Information Technology:

nachricht Fraunhofer FIT announces CloudTeams collaborative software development platform – join it for free
10.01.2017 | Fraunhofer-Institut für Angewandte Informationstechnik FIT

nachricht Electron-photon small-talk could have big impact on quantum computing
23.12.2016 | Princeton University

All articles from Information Technology >>>

The most recent press releases about innovation >>>

Die letzten 5 Focus-News des innovations-reports im Überblick:

Im Focus: Designing Architecture with Solar Building Envelopes

Among the general public, solar thermal energy is currently associated with dark blue, rectangular collectors on building roofs. Technologies are needed for aesthetically high quality architecture which offer the architect more room for manoeuvre when it comes to low- and plus-energy buildings. With the “ArKol” project, researchers at Fraunhofer ISE together with partners are currently developing two façade collectors for solar thermal energy generation, which permit a high degree of design flexibility: a strip collector for opaque façade sections and a solar thermal blind for transparent sections. The current state of the two developments will be presented at the BAU 2017 trade fair.

As part of the “ArKol – development of architecturally highly integrated façade collectors with heat pipes” project, Fraunhofer ISE together with its partners...

Im Focus: How to inflate a hardened concrete shell with a weight of 80 t

At TU Wien, an alternative for resource intensive formwork for the construction of concrete domes was developed. It is now used in a test dome for the Austrian Federal Railways Infrastructure (ÖBB Infrastruktur).

Concrete shells are efficient structures, but not very resource efficient. The formwork for the construction of concrete domes alone requires a high amount of...

Im Focus: Bacterial Pac Man molecule snaps at sugar

Many pathogens use certain sugar compounds from their host to help conceal themselves against the immune system. Scientists at the University of Bonn have now, in cooperation with researchers at the University of York in the United Kingdom, analyzed the dynamics of a bacterial molecule that is involved in this process. They demonstrate that the protein grabs onto the sugar molecule with a Pac Man-like chewing motion and holds it until it can be used. Their results could help design therapeutics that could make the protein poorer at grabbing and holding and hence compromise the pathogen in the host. The study has now been published in “Biophysical Journal”.

The cells of the mouth, nose and intestinal mucosa produce large quantities of a chemical called sialic acid. Many bacteria possess a special transport system...

Im Focus: Newly proposed reference datasets improve weather satellite data quality

UMD, NOAA collaboration demonstrates suitability of in-orbit datasets for weather satellite calibration

"Traffic and weather, together on the hour!" blasts your local radio station, while your smartphone knows the weather halfway across the world. A network of...

Im Focus: Repairing defects in fiber-reinforced plastics more efficiently

Fiber-reinforced plastics (FRP) are frequently used in the aeronautic and automobile industry. However, the repair of workpieces made of these composite materials is often less profitable than exchanging the part. In order to increase the lifetime of FRP parts and to make them more eco-efficient, the Laser Zentrum Hannover e.V. (LZH) and the Apodius GmbH want to combine a new measuring device for fiber layer orientation with an innovative laser-based repair process.

Defects in FRP pieces may be production or operation-related. Whether or not repair is cost-effective depends on the geometry of the defective area, the tools...

All Focus news of the innovation-report >>>

Anzeige

Anzeige

Event News

12V, 48V, high-voltage – trends in E/E automotive architecture

10.01.2017 | Event News

2nd Conference on Non-Textual Information on 10 and 11 May 2017 in Hannover

09.01.2017 | Event News

Nothing will happen without batteries making it happen!

05.01.2017 | Event News

 
Latest News

Energy-Efficient Building Operation: Monitoring Platform MONDAS Identifies Energy-Saving Potential

16.01.2017 | Trade Fair News

Designing Architecture with Solar Building Envelopes

16.01.2017 | Architecture and Construction

Sensory Stimuli Control Dopamine in the Brain

13.01.2017 | Life Sciences

VideoLinks
B2B-VideoLinks
More VideoLinks >>>