Ultra high frequency (UHF) radio frequency identification (RFID) systems suffer from
issues that limit their widespread deployment and limit the number of applications where
they can be used. These limitations are: lack of a well defined read zone, interference,
and environment sensitivity. To overcome these limitations a novel receiver device is
introduced into the system. The use of such device or devices mitigates the issues by
enabling more "anchor points" in the system. Two such devices exist in industry and
academia: the Astraion Sensatag and the Gen2 Listener. The drawbacks of the Sensatag
is that it offers poor performance in capturing tag signals. The Gen2 Listener is based
on the expensive software defined radio hardware.
The purpose of the thesis was to develop a receiver that will enable several new
RFID applications that are not available with current RFID systems. The receiver,
named ARR (Augmented RFID Receiver), receives tag and reader signals, which are
decoded by an FPGA and the results are reported through Ethernet. This device is
central to the augmented RFID system. To show the suitability of such an approach, the
performance of the implementation was compared to the other two outlined solutions. A
comparison of the read rate and range of the implementations were the defining factors.
The analysis showed that the ARR is capable of receiving tag signals with a read rate of
50% for passive and 66% for semi-passive tags at a one meter distance and is capable of
receiving tag signals at a maximum of 3.25 meters for passive and 5.5 meters for semi-
passive tags, with the reader being within 8 meters of the ARR. Two applications were
implemented to showcase the ARR: an RFID portal and protocol analyzer.
| Identifer | oai:union.ndltd.org:uottawa.ca/oai:ruor.uottawa.ca:10393/22914 |
| Date | January 2012 |
| Creators | Borisenko, Alexey |
| Contributors | Bolic, Miodrag |
| Publisher | Université d'Ottawa / University of Ottawa |
| Source Sets | Université d’Ottawa |
| Language | English |
| Detected Language | English |
| Type | Thesis |
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