Relative localization of RFID tags using spatial-temporal phase profiling
Many object localization applications need the relative locations of a set of objects as oppose to their absolute locations. Although many schemes for object localization using Radio Frequency Identification (RFID) tags have been proposed, they mostly focus on absolute object localization and are no...
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sg-smu-ink.sis_research-56252020-01-02T08:50:09Z Relative localization of RFID tags using spatial-temporal phase profiling SHANGGUAN, Longfei YANG, Zheng LIU, Alex X. ZHOU, Zimu LIU, Yunhao Many object localization applications need the relative locations of a set of objects as oppose to their absolute locations. Although many schemes for object localization using Radio Frequency Identification (RFID) tags have been proposed, they mostly focus on absolute object localization and are not suitable for relative object localization because of large error margins and the special hardware that they require. In this paper, we propose an approach called Spatial-Temporal Phase Profiling (STPP) to RFID based relative object localization. The basic idea of STPP is that by moving a reader over a set of tags during which the reader continuously interrogating the tags, for each tag, the reader obtains a sequence of RF phase values, which we call a phase profile, from the tag’s responses over time. By analyzing the spatial-temporal dynamics in the phase profiles, STPP can calculate the spatial ordering among the tags. In comparison with prior absolute object localization schemes, STPP requires neither dedicated infrastructure nor special hardware. We implemented STPP and evaluated its performance in two real-world applications: locating misplaced books in a library and determining baggage order in an airport. The experimental results show that STPP achieves about 84% ordering accuracy for misplaced books and 95% ordering accuracy for baggage handling. 2015-05-06T07:00:00Z text application/pdf https://ink.library.smu.edu.sg/sis_research/4622 https://ink.library.smu.edu.sg/context/sis_research/article/5625/viewcontent/nsdi15_paper_shangguan.pdf http://creativecommons.org/licenses/by-nc-nd/4.0/ Research Collection School Of Computing and Information Systems eng Institutional Knowledge at Singapore Management University Software Engineering |
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Software Engineering SHANGGUAN, Longfei YANG, Zheng LIU, Alex X. ZHOU, Zimu LIU, Yunhao Relative localization of RFID tags using spatial-temporal phase profiling |
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Many object localization applications need the relative locations of a set of objects as oppose to their absolute locations. Although many schemes for object localization using Radio Frequency Identification (RFID) tags have been proposed, they mostly focus on absolute object localization and are not suitable for relative object localization because of large error margins and the special hardware that they require. In this paper, we propose an approach called Spatial-Temporal Phase Profiling (STPP) to RFID based relative object localization. The basic idea of STPP is that by moving a reader over a set of tags during which the reader continuously interrogating the tags, for each tag, the reader obtains a sequence of RF phase values, which we call a phase profile, from the tag’s responses over time. By analyzing the spatial-temporal dynamics in the phase profiles, STPP can calculate the spatial ordering among the tags. In comparison with prior absolute object localization schemes, STPP requires neither dedicated infrastructure nor special hardware. We implemented STPP and evaluated its performance in two real-world applications: locating misplaced books in a library and determining baggage order in an airport. The experimental results show that STPP achieves about 84% ordering accuracy for misplaced books and 95% ordering accuracy for baggage handling. |
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SHANGGUAN, Longfei YANG, Zheng LIU, Alex X. ZHOU, Zimu LIU, Yunhao |
author_facet |
SHANGGUAN, Longfei YANG, Zheng LIU, Alex X. ZHOU, Zimu LIU, Yunhao |
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SHANGGUAN, Longfei |
title |
Relative localization of RFID tags using spatial-temporal phase profiling |
title_short |
Relative localization of RFID tags using spatial-temporal phase profiling |
title_full |
Relative localization of RFID tags using spatial-temporal phase profiling |
title_fullStr |
Relative localization of RFID tags using spatial-temporal phase profiling |
title_full_unstemmed |
Relative localization of RFID tags using spatial-temporal phase profiling |
title_sort |
relative localization of rfid tags using spatial-temporal phase profiling |
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Institutional Knowledge at Singapore Management University |
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2015 |
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https://ink.library.smu.edu.sg/sis_research/4622 https://ink.library.smu.edu.sg/context/sis_research/article/5625/viewcontent/nsdi15_paper_shangguan.pdf |
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