Exploiting phase measurements of EPC Gen2 RFID tags

J. Huiting; Hubert Flisijn; Andre B.J. Kokkeler; Gerardus Johannes Maria Smit

doi:10.1109/RFID-TA.2013.6694503

Exploiting phase measurements of EPC Gen2 RFID tags

J. Huiting, Hubert Flisijn, Andre B.J. Kokkeler, Gerardus Johannes Maria Smit

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

26 Citations (Scopus)

Abstract

This paper presents a 2d localization system for UHF RFID tags. By measuring the phase between the transmitted continuous wave and received backscatter from the tag at different frequencies, it is possible to estimate the distance between the reader and tag. By determining distance estimates to three antennas it is possible to determine a location of a tag with the help of trilateration. The location of the antennas has to be known and any error in distance measurement influences the location estimate. Mainly to overcome the expected impact of the environment on the distance estimate, we opt for the use of reference tags and the K-Nearest Neighbor (KNN) algorithm to derive a location. An experiment is done and results are compared with an KNN algorithm based on received signal strength. Furthermore some experiments are done to verify the use of phase measurements for the detection of stationary tags in a portal application.

Original language	Undefined
Title of host publication	2013 IEEE International Conference on RFID-Technologies and Applications (RFID-TA)
Place of Publication	United States of America
Publisher	IEEE RFID
Pages	1-4
Number of pages	4
ISBN (Print)	978-1-4673-4656-6
DOIs	https://doi.org/10.1109/RFID-TA.2013.6694503
Publication status	Published - 4 Sep 2013
Event	2013 IEEE International Conference on RFID-Technologies and Applications, RFID-TA 2013 - Zon Regency Hotel, Johor Bahru, Malaysia Duration: 4 Sep 2013 → 5 Sep 2013

Publication series

Name
Publisher	IEEE

Conference

Conference	2013 IEEE International Conference on RFID-Technologies and Applications, RFID-TA 2013
Abbreviated title	RFID-TA
Country	Malaysia
City	Johor Bahru
Period	4/09/13 → 5/09/13

Keywords

EWI-24236
IR-88649
METIS-302605

Access to Document

10.1109/RFID-TA.2013.6694503

http://eprints.eemcs.utwente.nl/secure2/24236/01/06694503.pdf

Cite this

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title = "Exploiting phase measurements of EPC Gen2 RFID tags",

abstract = "This paper presents a 2d localization system for UHF RFID tags. By measuring the phase between the transmitted continuous wave and received backscatter from the tag at different frequencies, it is possible to estimate the distance between the reader and tag. By determining distance estimates to three antennas it is possible to determine a location of a tag with the help of trilateration. The location of the antennas has to be known and any error in distance measurement influences the location estimate. Mainly to overcome the expected impact of the environment on the distance estimate, we opt for the use of reference tags and the K-Nearest Neighbor (KNN) algorithm to derive a location. An experiment is done and results are compared with an KNN algorithm based on received signal strength. Furthermore some experiments are done to verify the use of phase measurements for the detection of stationary tags in a portal application.",

keywords = "EWI-24236, IR-88649, METIS-302605",

author = "J. Huiting and Hubert Flisijn and Kokkeler, {Andre B.J.} and Smit, {Gerardus Johannes Maria}",

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doi = "10.1109/RFID-TA.2013.6694503",

language = "Undefined",

isbn = "978-1-4673-4656-6",

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Huiting, J, Flisijn, H, Kokkeler, ABJ & Smit, GJM 2013, Exploiting phase measurements of EPC Gen2 RFID tags. in 2013 IEEE International Conference on RFID-Technologies and Applications (RFID-TA). IEEE RFID, United States of America, pp. 1-4, 2013 IEEE International Conference on RFID-Technologies and Applications, RFID-TA 2013, Johor Bahru, Malaysia, 4/09/13. https://doi.org/10.1109/RFID-TA.2013.6694503

Exploiting phase measurements of EPC Gen2 RFID tags. / Huiting, J.; Flisijn, Hubert; Kokkeler, Andre B.J.; Smit, Gerardus Johannes Maria.

2013 IEEE International Conference on RFID-Technologies and Applications (RFID-TA). United States of America : IEEE RFID, 2013. p. 1-4.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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N2 - This paper presents a 2d localization system for UHF RFID tags. By measuring the phase between the transmitted continuous wave and received backscatter from the tag at different frequencies, it is possible to estimate the distance between the reader and tag. By determining distance estimates to three antennas it is possible to determine a location of a tag with the help of trilateration. The location of the antennas has to be known and any error in distance measurement influences the location estimate. Mainly to overcome the expected impact of the environment on the distance estimate, we opt for the use of reference tags and the K-Nearest Neighbor (KNN) algorithm to derive a location. An experiment is done and results are compared with an KNN algorithm based on received signal strength. Furthermore some experiments are done to verify the use of phase measurements for the detection of stationary tags in a portal application.

AB - This paper presents a 2d localization system for UHF RFID tags. By measuring the phase between the transmitted continuous wave and received backscatter from the tag at different frequencies, it is possible to estimate the distance between the reader and tag. By determining distance estimates to three antennas it is possible to determine a location of a tag with the help of trilateration. The location of the antennas has to be known and any error in distance measurement influences the location estimate. Mainly to overcome the expected impact of the environment on the distance estimate, we opt for the use of reference tags and the K-Nearest Neighbor (KNN) algorithm to derive a location. An experiment is done and results are compared with an KNN algorithm based on received signal strength. Furthermore some experiments are done to verify the use of phase measurements for the detection of stationary tags in a portal application.

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