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Custom RF-ID Control

1 Project Overview
Overview

RFID is a relatively new technology that allows for low power tracking informational systems embedded into devices. RF-ID tags are composed of two parts. The first is an integrated circuit that is used to store and process information as well as interpret the radio signal used to transmit information to the tag. The second is an antennae that is used to transmit and receive information. The main use of RF-ID is in inventory tracking and management, but RF-ID is also used in devices that most of us use every day. Some example of these currently in use are storing information in new passports, animal identification, and library inventory systems. There are three different types of RF-ID’s. Active RF-ID’s contain a battery and can actively transmit information without any external stimulus. Passive RF-ID tags have no battery and require an external stimulus to start signal transmission. Battery assisted RF-ID tags require an external source to “wake-up”, but once woken up can work autonomously. {1}

This project requires us to create four working RF-ID systems. These systems must be low-cost, environmentally sound, have a working range of two inches, and most importantly work universally with RF-ID systems. They must both read and write to RF-ID tags as necessary and be low power. It must be able to interface with many different types of systems and be relatively simple to use. For example it should be as easy to use with a door lock as it is with a PC. This means that it also has to have a wide range of input and output capability, as what is being sent to a door lock is most likely much different than what is being sent to a computer. This system will also be able to handle the presence of at least two tags at the same time. Each device must also cost less than six dollars to make in quantity.

Project Requirements

* The system should be environmentally sound

* The system should be manufacturable

* The system should be less than six dollars per unit

* The system should have low power consumption

* The system should have a working range of up to two inches

* The system should be able to read/write to multiple protocols

* The system should be durable and tested in real situations

* The device should be able to handle the presence of at least two tags at the same time

* The device should be able to communicate in a network of multiple devices

Group Members:

Ryan Saffores - safforer@onid.orst.edu