Object localization using RFID

Authors:
Kirti Chawla;Gabriel Robins;Liuyi Zhang
Affiliations:
Department of Computer Science, University of Virginia, Charlottesville, Virginia;Department of Computer Science, University of Virginia, Charlottesville, Virginia;Department of Computer Science, University of Virginia, Charlottesville, Virginia
Venue:
ISWPC'10 Proceedings of the 5th IEEE international conference on Wireless pervasive computing
Year:
2010

Citing 6
Cited 1

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Abstract

Object localization is a key primitive in pervasive computing environments, where numerous applications depend on the rapid and accurate position estimation of objects. We present a general RFID-based localization framework that reliably determines the positions of objects with unprecedented accuracy and speed. This is achieved by varying the power levels of the RFID readers, calibrated against reference tags of known sensitivity. Our implementation and experiments are able to localize objects to an accuracy of 15 em within a few seconds, and this compares favorably with previous techniques. We also suggest senral practical optimizations for further enhancing the speed and accuracy ofthe method.