Featured Research

from universities, journals, and other organizations

RFIDs: Smart little gizmos get even smarter

Date:
July 9, 2010
Source:
Expertanswer (Expertsvar in Swedish)
Summary:
With the help of smart RFID technology, things, animals, and people can be identified remotely, and the information can be sent and stored in databases. Now the method will be even smarter, thanks to a researcher in Sweden who is presenting solutions that make this technology more effective and more energy efficient. In fact, as much as 60 percent more efficient.

Researcher Björn Nilsson.
Credit: Photo by Ida Lövstål

With the help of smart RFID technology, things, animals, and people can be identified remotely, and the information can be sent and stored in databases. Now the method will be even smarter thanks to researcher Björn Nilsson at Halmstad University in Sweden, who is presenting solutions that make this technology more effective and more energy efficient. In fact, as much as 60 percent more efficient.

RFID stands for "Radio Frequency Identification" and is about identifying something remotely with the help of wireless technology. A product is provided with a tag -- or a label -- which in turn has a unique identity number. When a tag passes a reader, the tag is read, and the number is registered.

RFID tags are found on masses of items in a great number of different areas where someone wants to trace, identify, and store information. Business like logistics, transportation, and animal husbandry can be made considerably more efficient with the aid of more modern tags.

Thanks to Björn Nilsson's research, there is now a solution that makes the technology even more effective and, what's more, more energy efficient. He has developed a protocol, that is, rules for communication between readers and tags, for so-called active RFID tags that entail that the use of energy is reduced and batteries last longer. This means that it is now possible to produce simpler and thereby cheaper tags.

Today's active tags have been relatively limited since they have been energy-consuming and expensive to produce. There is a great demand for more energy-efficient tags with longer lives. But there's another snag. If multiple tags pass a reader at the same time, it might be that all tags are not read then and there.

"This is what it's all about. They can't 'interrupt' each other. The talk needs to be organized. You also want the tags to use as little energy as possible. This is what my research is about: how readers and multiple tags talk to each other at the same time, effectively and without causing confusion," explains Björn Nilsson.

The next step is to develop an active tag with a single circuit. Björn Nilsson is already working on this. Together with his colleague Emil Nilsson at Halmstad University, he is running a project where Björn's job is to see to it that readers and tags communicate with each other, while Emil is developing the electronics to make it all more efficient.

Early this summer Björn Nilsson, together with his thesis director at Chalmers University of Technology, Lars Bengtsson, and his colleague Emil Nilsson at Halmstad University, presented this research at one of the world's largest RFID conferences in China. Their paper was selected as one of the eight best at the conference in China.

"We're very competitive in this field at Halmstad University," says Björn Nilsson.

The dissertation is titled Energy Efficient Protocols for Active RFID and was submitted to Chalmers in June. The research work was carried out at Halmstad University and the company Free2Move.


Story Source:

The above story is based on materials provided by Expertanswer (Expertsvar in Swedish). Note: Materials may be edited for content and length.


Cite This Page:

Expertanswer (Expertsvar in Swedish). "RFIDs: Smart little gizmos get even smarter." ScienceDaily. ScienceDaily, 9 July 2010. <www.sciencedaily.com/releases/2010/07/100707065214.htm>.
Expertanswer (Expertsvar in Swedish). (2010, July 9). RFIDs: Smart little gizmos get even smarter. ScienceDaily. Retrieved July 24, 2014 from www.sciencedaily.com/releases/2010/07/100707065214.htm
Expertanswer (Expertsvar in Swedish). "RFIDs: Smart little gizmos get even smarter." ScienceDaily. www.sciencedaily.com/releases/2010/07/100707065214.htm (accessed July 24, 2014).

Share This




More Matter & Energy News

Thursday, July 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Creative Makeovers for Ugly Cellphone Towers

Creative Makeovers for Ugly Cellphone Towers

AP (July 24, 2014) — Mobile phone companies and communities across the country are going to new lengths to disguise those unsightly cellphone towers. From a church bell tower to a flagpole, even a pencil, some towers are trying to make a point. (July 24) Video provided by AP
Powered by NewsLook.com
Algonquin Power Goes Activist on Its Target Gas Natural

Algonquin Power Goes Activist on Its Target Gas Natural

TheStreet (July 23, 2014) — When The Deal's Amanda Levin exclusively reported that Gas Natural had been talking to potential suitors, the Ohio company responded with a flat denial, claiming its board had not talked to anyone about a possible sale. Lo and behold, Canadian utility Algonquin Power and Utilities not only had approached the company, but it did it three times. Its last offer was for $13 per share as Gas Natural's was trading at a 60-day moving average of about $12.50 per share. Now Algonquin, which has a 4.9% stake in Gas Natural, has taken its case to shareholders, calling on them to back its proposals or, possibly, a change in the target's board. Video provided by TheStreet
Powered by NewsLook.com
Robot Parking Valet Creates Stress-Free Travel

Robot Parking Valet Creates Stress-Free Travel

AP (July 23, 2014) — 'Ray' the robotic parking valet at Dusseldorf Airport in Germany lets travelers to avoid the hassle of finding a parking spot before heading to the check-in desk. (July 23) Video provided by AP
Powered by NewsLook.com
Boeing Ups Outlook on 52% Profit Jump

Boeing Ups Outlook on 52% Profit Jump

Reuters - Business Video Online (July 23, 2014) — Commercial aircraft deliveries rose seven percent at Boeing, prompting the aerospace company to boost full-year profit guidance- though quarterly revenues missed analyst estimates. Bobbi Rebell reports. Video provided by Reuters
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
 
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:  

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:  

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile iPhone Android Web
Follow Facebook Twitter Google+
Subscribe RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins