Where in the world is my PSP?

RFID Triangulation

Stuart Lenz

North Star High School

Example:You just bought a PSP on

Ebay. It is being shipped using USPS. You are given a

code so that you can go online and check the status

of your shipment.

How does USPS track your PSP?

Definition of RFIDRFID: Radio Frequency Identificationis based on wireless communication over

the air that reads or writes information from a Tag.

Components:1) Tag2) Reader3) Air Interface

How RFID works

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RFID in a Nutshell

“How did I get in the crazy nutshell?”- Austin Powers

Uses of RFIDCredit Cards

Bar CodesCattle Tracking

Toll BoothsMilitary

AutomobilesKeyless Entry

How does USPS track your PSP?

Triangulation:A process by which the location of a transmitter can be determined by measuring either the radial distance, or the direction, of the received signal from two or three different points.•GPS•Cell Phones