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RFID ExplainedPrinciples of Radio Frequency Identification

RFID Explained: Principles of Radio Frequency Identification [There are many types of RFID [9], and at the highest level of classification these can be divided into two classes: active and passive devices. Active tags require a power source [10] and either need a connection to powered infrastructure or have a limited lifetime defined by the energy stored in an integrated battery, balanced against the number of read operations that will be performed on the tag. Examples of active tags are, transponders attached to aircraft to identify their national origin, and LoJack devices attached to cars that incorporate cellular technology along with a Global Positioning System (GPS), communicating the location of a car if stolen. Olivetti Research Ltd’s Active Badge, used to determine the location of people and objects in a building is an example of a small wearable active tag with a lifetime of about 1 year [11]. There are also some types of active tag that scavenge power from their enviornment. MIT Media lab’s push-button powered doorbell controller [12] is another; the mechanical energy scavenged from pushing the switch is used to power the electronics.] http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png

RFID ExplainedPrinciples of Radio Frequency Identification

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Publisher
Springer International Publishing
Copyright
© Springer Nature Switzerland AG 2006
ISBN
978-3-031-01346-1
Pages
7 –15
DOI
10.1007/978-3-031-02474-0_2
Publisher site
See Chapter on Publisher Site

Abstract

[There are many types of RFID [9], and at the highest level of classification these can be divided into two classes: active and passive devices. Active tags require a power source [10] and either need a connection to powered infrastructure or have a limited lifetime defined by the energy stored in an integrated battery, balanced against the number of read operations that will be performed on the tag. Examples of active tags are, transponders attached to aircraft to identify their national origin, and LoJack devices attached to cars that incorporate cellular technology along with a Global Positioning System (GPS), communicating the location of a car if stolen. Olivetti Research Ltd’s Active Badge, used to determine the location of people and objects in a building is an example of a small wearable active tag with a lifetime of about 1 year [11]. There are also some types of active tag that scavenge power from their enviornment. MIT Media lab’s push-button powered doorbell controller [12] is another; the mechanical energy scavenged from pushing the switch is used to power the electronics.]

Published: Jan 1, 2006

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