Rfid Technology - History and Future

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How It Works?4
Why RFID Is Hot5
The RFID System5
Types Of RFIDags6
1.New and Improved Tags7
Alternative Tag Designs7
Sensory Tags7
2.Architecture for the New Network7
Microprocessor Design8
Peer-to-Peer Computing8
3.Falling RFID Tag Price8
4.Business Process Innovations9
Item-Level Tagging9
Third-Party Logistics Management9
Real-time Inventory Management10
Business Intelligence10
IT Outsourcing10
Real-Time Data Sharing for Total Supply Chain Integration11 HISTORY OF RFID11
Forward to 20th century11
Genesis of an idea12
RFID becomes reality12
The 1990s13
Back to the future: The 21st century13
2.Privacy Concerns16
3.Bleeding Edge Technology16
4.Tag Interference Vulnerability17
5.Tag Collision17
RFID for the Consumer in the Future17
Easy item returns17
Smart appliances18
Easy shopping18
Looking Back at the Wal-Mart RFID Time Line18
Five Interesting Cases on Human RFID Implanting20

Radio frequency identification (RFID) is a generic term that is used to describe a system that transmits the identity (in the form of a unique serial number) of an object or person wirelessly, using radio waves. It's grouped under the broad category of automatic identification technologies (Auto-ID). Auto-ID technologies include bar codes, optical character readers and some biometric technologies, such as retinal scans. The auto-ID technologies have been used to reduce the amount of time and labor needed to input data manually and to improve data accuracy. Some auto-ID technologies, such as bar code systems, often require a person to manually scan a label or tag to capture the data. RFID is designed to enable readers to capture data on tags and transmit it to a computer system—without needing a person to be involved. A typical RFID tag consists of a microchip attached to a radio antenna mounted on a substrate. The chip can store as much as 2 kilobytes of data. For example, information about a product or shipment—date of manufacture, destination and sell-by date—can be written to a tag. To retrieve the data stored on an RFID tag, you need a reader. A typical reader is a device that has one or more antennas that emit radio waves and receive signals back from the tag. The reader then passes the information in digital form to a computer system. RFID technology has been used by thousands of companies for a decade or more. The technology is not new, so why is it taking off now? Until recently, the cost of RFID has limited its use. For many applications, such as tracking parts for just-in-time manufacturing, companies could justify the cost of tags—a dollar or more per tag—by the savings an RFID system could generate. And when RFID was used to track assets or reusable containers within a company’s own four walls, the tags could be reused. But for tracking goods in open supply chains, where RFID tags are put on cases and pallets of products by one company and read by another, cost has been a major obstacle to adoption. Tags must, in effect, be disposable because the company putting them on cannot recycle them. They get thrown out with the box. (Tags built into pallets could be reused, and some companies are looking to develop ways to recycle tags on corrugated cases.) Wal-Mart was the first retailer to require suppliers to put tags on cases and pallets of goods. In June 2003, it told its top 100 suppliers that they would need to begin putting tags on shipments in January 2005. One reason Wal-Mart chose this approach was to solve the chicken and-egg problem. If the giant retailer's top suppliers began buying tags, which would begin to drive the price down. Lower prices would enable more companies to use the technology. Then volumes...
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