[Via: Slashdot] The Guardian has a lengthy and extremely interesting article on customer loyalty cards and tracking. Projects are underway to add these tracking tags to items we use and wear every day.
FID is a tracking system that uses a chip around the size of a speck of dust joined to an antenna. The chip is embedded into a product and can then talk to a hand-held scanning device, currently at a range of 1-20ft. The conversation between chip and scanner reveals the item’s “electronic product code”, similar to a barcode, except that in this case the information is unique to the item. At the Tesco Cambridge (UK) store a camera trained on the Gillette blade shelf, and triggered by the tags, captures a photo of each customer who removes a Mach3 pack. Another photo is taken at the checkout and security staff compare the two images to ensure they always have a pair.