Technicians and all those interested in inventions and new devices will enjoy discovering the RFID tags on How Stuff Works. As usual on How Stuff Works, the pages are illustrated with drawings, diagrams and visual interactive features which are very helpful to understand. What I also like there is that some students know the systems and are quite happy to bring more information and explain details to the teacher and the class.
Here is what you can read on the page:
« Imagine going to the grocery store, filling up your cart and walking right out the door. No longer will you have to wait as someone rings up each item in your cart one at a time. Instead, these RFID tags will communicate with an electronic reader that will detect every item in the cart and ring each up almost instantly. The reader will be connected to a large network that will send information on your products to the retailer and product manufacturers. Your bank will then be notified and the amount of the bill will be deducted from your account. No lines, no waiting.
RFID tags, a technology once limited to tracking cattle, will soon be tracking trillions of consumer products worldwide. Manufacturers will know the location of each product they make from the time it’s made until it’s used and tossed in the recycle bin or trash can. In this article, you’ll learn about the types of RFID tags in development and how these smart labels will be tracked through the entire supply chain. »
all the details on how it works at:
http://electronics.howstuffworks.com/ref/smart-label.htm?cid=e13
Discover also several other systems and devices: UPC Bar Codes, Anti-shoplifting Devices, E-ZPass, Blink Technology
How UPC Bar Codes Work
http://electronics.howstuffworks.com/ref/upc.htm?cid=e13
How Anti-shoplifting Devices Work
http://electronics.howstuffworks.com/ref/anti-shoplifting-device.htm?cid=e13
How E-ZPass Works
http://auto.howstuffworks.com/ref/e-zpass.htm?cid=e13
How Blink Technology Works
http://electronics.howstuffworks.com/ref/blink.htm?cid=e13
– Tracking : is Big Brother helping us?
