For what it's worth, RFID tags have no power source. The transmitters inside of them only activate when a receiver, which is also a transmitter provides enough RF to power the tiny transmitter inside the tag.
An RFID scanner that would work at a range of more than a few feet (read 6' or under) would require a substantial power source, a substantial amount of RF, and would not be safe to work around for any extended period of time.
Quote:
Originally Posted by karlsgunbunker  Put on your TinFoil hat.
Wal-Mart has been working with MFG of Razors and other small plastic items to put imbeded RF chips in their products.
This is for Inventory Control and of course Loss Prevention.
Wal-Mart loses a crap load of money on people shoplifting small stuff like razors etc.
Critics say that it will be used to track usage. That they could drive a van down your street and tell what brand of Razor etc. you are using in your house.
I read an article a couple years ago about all of this and did some research for my employer.
The technology exhists to put a tracking chip in almost any product.
We were planning to use it to imbed unique Serial Numbers in our speakers that could not be removed for warrenty and fraud purposes.
Now go line all the wall inside your house with tin foil and have a great day.  |