OTrack : Towards order tracking for tags in mobile RFID systems

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Author(s)

  • Longfei Shangguan
  • Zheng Yang
  • Mo Li
  • Yunhao Liu
  • Jinsong Han

Detail(s)

Original languageEnglish
Article number6626304
Pages (from-to)2114-2125
Journal / PublicationIEEE Transactions on Parallel and Distributed Systems
Volume25
Issue number8
Publication statusPublished - Aug 2014
Externally publishedYes

Abstract

In many logistics applications of RFID technology, luggage attached with tags are placed on moving conveyor belts for processing. It is important to figure out the order of goods on the belts so that further actions like sorting can be accurately taken on proper goods. Due to arbitrary goods placement or the irregularity of wireless signal propagation, neither of the order of tag identification nor the received signal strength provides sufficient evidence on their relative positions on the belts. In this study, we observe, from experiments, a critical region of reading rate when a tag gets close enough to a reader. This phenomenon, as well as other signal attributes, yields the stable indication of tag order. We establish a probabilistic model for recognizing the transient critical region and propose the OTrack protocol to continuously monitor the order of tags. To validate the protocol, we evaluate the accuracy and effectiveness through a one-month experiment conducted through a working conveyor at Beijing Capital International Airport. © 2013 IEEE.

Research Area(s)

  • Mobile RFID system, order tracking, probabilistic model

Citation Format(s)

OTrack : Towards order tracking for tags in mobile RFID systems. / Shangguan, Longfei; Li, Zhenjiang; Yang, Zheng; Li, Mo; Liu, Yunhao; Han, Jinsong.

In: IEEE Transactions on Parallel and Distributed Systems, Vol. 25, No. 8, 6626304, 08.2014, p. 2114-2125.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review