Rfid Explained
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RFID Explained
This lecture provides an introduction to Radio Frequency Identification (RFID), a technology enabling automatic identification of objects at a distance without requiring line-of-sight. Electronic tagging can be divided into technologies that have a power source (active tags), and those that are powered by the tag interrogation signal (passive tags); the focus here is on passive tags. An overview of the principles of the technology divides passive tags into devices that use either near field or far field coupling to communicate with a tag reader. The strengths and weaknesses of the approaches are considered, along with the standards that have been put in place by ISO and EPCGlobal to promote interoperability and the ubiquitous adoption of the technology. A section of the lecture has been dedicated to the principles of reading co-located tags, as this represents a significant challenge for a technology that may one day be able to automatically identify all of the items in your shopping cart in a just few seconds. In fact, RFID applications are already quite extensive and this lecture classifies the primary uses. Some variants of modern RFID can also be integrated with sensors enabling the technology to be extended to measure parameters in the local environment, such as temperature & pressure. The uses and applications of RFID sensors are further described and classified. Later we examine important lessons surrounding the deployment of RFID for the Wal-Mart and the Metro AG store experiences, along with deployments in some more exploratory settings. Extensions of RFID that make use of read/write memory integrated with the tag are also discussed, in particular looking at novel near term opportunities. Privacy and social implications surrounding the use of RFID inspire recurring debates whenever there is discussion of large scale deployment; we examine the pros and cons of the issues and approaches for mitigating the problems. Finally, the remaining challenges of RFID are considered and we look to the future possibilities for the technology. Table of Contents: Introduction / Principles of Radio Frequency Identification / RFID Industry Standards / Reading Collected RFID Tags / Applications of RFID Tagging / RFID Incorporating Sensing / Deployment and Experience with RFID Systems / Privacy, Kill Switches, and Blocker Tags / Opportunities for RFID Integrated with Memory / Challenges, Future Technology, and Conclusion
RFID Explained
Introduction -- Principles of radio frequency identification -- RFID industry standards -- Reading collected RFID tags -- Applications of RFID tagging -- RFID incorporating sensing -- Deployment and experience with RFID systems -- Privacy, kill switches, and blocker tags -- Opportunities for RFID integrated with memory -- Challenges, future technology, and conclusion.
Spychips
Big Brother gets up close and personal. Do you know about RFID (Radio Frquency IDentification)? Well, you should, because in just a few short years, this explosive new technology could tell marketers, criminals, and government snoops everything about you. Welcome to the world of spychips, where tiny computer chips smaller than a grain of sand will trace everyday objects?and even people?keeping tabs on everything you own and everywhere you go. In this startling, eye-opening book, you'll learn how powerful corporations are planning a future where: Strangers will be able to scan the contents of your purse or briefcase from across a room. Stores will change prices as you approach-squeezing extra profits out of bargain shoppers and the poor. The contents of your refrigerator and medicine cabinet will be remotely monitored. Floors, doorways, ceiling tiles, and even picture frames will spy on you?leaving virtually no place to hide. microchip implants will track your every move?and even broadcast your conversations remotely or electroshock you if you step out of line. This is no conspiracy theory. Hundreds of millions of dollars have already been invested in what global corporations and the government are calling "the hottest new technology since the bar code." Unless we stop it now, RFID could strip away our last shreds of privacy and usher in a nightmare world of total surveillance?to keep us all on Big Brother's very short leash. What critics are saying about Spychips, the book: Spychips "make[s] a stunningly powerful argument against plans for RFID being mapped out by government agencies, retail and manufacturing companies." ?Evan Schuman, CIO Insight "The privacy movement needs a book. I nominate Spychips." ?Marc Rotenberg, EPIC "Brilliantly written; so scary and depressing I want to put it down, so full of fascinating vignettes and facts that I can't put it down." ?Author Claire Wolfe Spychips "makes a very persuasive case that some of America's biggest companies want to embed tracking technology into virtually everything we own, and then study our usage patterns 24 hours a day. It's a truly creepy book and well worth reading." ?Hiawatha Bray, Boston Globe "You REALLY want to read this book." ?Laissez Faire