Sunday, February 24, 2008

RFID Technology: Pro and Contra

I found this video on You Tube. It's a very interesting video. Try to watch it before you read through this post.



Video shown above is one of IBM’s commercials. A guy, who initially looked like shoplifter, took whatever he wanted in a supermarket and just walk out without queuing on the checkout line to make payment. According to IBM, This is how we going to shop in future time. Customers do not have to queue up on check out line to pay. The supermarket/store system automatically scans the items taken including customers information (for payment) just as the customers walk out of the store. This is possible due to adoption of technology called Radio-frequency identification (RFID). This technology has been existed since 60 years ago (during word war II). However, only in the last decade, people started to use it commercially.

As according to Wikipedia, RFID is an automatic identification method, relying on storing and remotely retrieving data using devices called RFID tags or transponders. An RFID tag is an object that can be attached to a product, animal, or person for the purpose of identification using radiowaves. The picture below shows how RFID tag looks like.


RFID tag contains microchip that stores particular information and small antenna that sends out information to the reader. RFID tag is relatively small and thin, thus, is can be hidden behind product label. This technology offers more advantages compared to bar code system. Unlike bar code reader, RFID reader can read hundreds of tags at one time. RFID tags are relatively inexpensive, although it is not as cheap as bar code. It costs around $0.05 at the minimum. This trigger the growth of this technology's adoption. People started to apply RFID technology in many areas. One example of successful adoptions of RFID technology may be the warehouse management system. RFID helps in keeping track of all products that are entering and leaving the warehouse. It saves time, cost and effort.

Regardless of its usefulness, this technology is likely to be misused. Imagine that one day RFID technology is so advanced that it can tracks any tag on earth. A shoe manufacturer may simply attach RFID tag in the hidden area of your shoe, and use it to track you down. Application of RFID technology to track down human may be a serious privacy violation.

IBM has patented human-tracking system called "Identification and Tracking of Persons Using RFID-tagged Items". The following paragraph is the abstract taken from the patent application.

"A method and system for identifying and tracking persons using RFID-tagged items carried on the persons. Previous purchase records for each person who shops at a retail store are collected by POS terminals and stored in a transaction database. When a person carrying or wearing items having RFID tags enters the store or other designated area, a RFID tag scanner located therein scans the RFID tags on that person and reads the RFID tag information. The RFID tag information collected from the person is correlated with transaction records stored in the transaction database according to known correlation algorithms. Based on the results of the correlation, the exact identity of the person or certain characteristics about the person can be determined. This information is used to monitor the movement of the person through the store or other areas."

The following video shows how that system may look like.




Personally, I am not against the use of RFID technology in tracking human. However, human have to be given the right to decide when and where the tracking should be active or inactive. For example, when someone is hiking , he/she may want to be tracked in case he/she get lost. Therefore, to prevent misuse of this technology, tight control and proper policy are needed.

References

5 comments:

Anonymous said...

cool....cant wait to shop like that.....

Anonymous said...

Do you think Nottigham's library uses this?

Anonymous said...

This is pretty cool :-P

Anonymous said...

RFID is undoubtedly an intelligent technology, however, the extent to its practical use is debatable. I personally wont allow myself being tracked at all time, but that would be self-defeating in the sense that, if tracking IS the function(for e.g. tracking a potential criminal). there'll never be an answer to the moral implications of RFID but i'd rather be in control of technology than BEING CONTROLLED. Brilliant post btw. :)

Anonymous said...

I like the idea of shopping without hassle (; This concept would really be helpful in time-consuming sectors but using it as a compulsery tool to track every person in this world is pretty absurd. That's like being controlled in a way. Like the idea of putting chips into dogs so that we could track them. I mean, I can't even accept that and yet, this is like trapping ourself and allowing ourselves to be controlled and watched by some one all the time. Crazy. What's the use of living if you're like some pet being watched and traced all the time. Maybe implimentation during trips into the jungle would be useful. But how much does it actually cost to impliment something like the one in the market clip?

interesting posts in your blog. Straight to the point and not draggy. and the clips and graphics are a plus point. ;) Keep it up.