Identification of missing objects with group coding of RF tags

Yuki Sato, Yuki Igarashi, Jin Mitsugi, Osamu Nakamura, Jun Murai

Research output: Chapter in Book/Report/Conference proceedingConference contribution

18 Citations (Scopus)

Abstract

Physical objects often form a group such as objects in a shipping container. RFID enables us to identify each object and even the container itself. However, current RFID does not provide information on IDs missing from a group. This paper proposes a method to determine the unique IDs of objects missing from a group without any external database or verifier. The proposed method logically splits a group into mutually overlapped sub-groups and writes group-related information, which is generated from the unique IDs of objects in the subgroup, to RF tags' memory. When we check the integrity of a group of objects, unique IDs and group-related information of RF tags are extracted from RF tags' memory. With an iterative decoding over group-related information with the unique IDs of identified objects, missing IDs are determined. A numerical simulation reveals that the proposed method can identify 96-bit unique IDs of up to 64 objects missing from a group composed of 100 objects by writing 840-bit group-related information to each RF tag. We also examined the performance with an experiment and confirmed that we can successfully determine 16-bit IDs of up to 12 missing RF tags from a group of 20 RF tags by writing 280-bit group-related information to each RF tag. The experiment results agree well with the numerical simulation.

Original languageEnglish
Title of host publication2012 IEEE International Conference on RFID, RFID 2012
Pages95-101
Number of pages7
DOIs
Publication statusPublished - 2012 May 24
Event2012 6th IEEE International Conference on RFID, RFID 2012 - Orlando, FL, United States
Duration: 2012 Apr 32012 Apr 5

Publication series

Name2012 IEEE International Conference on RFID, RFID 2012

Other

Other2012 6th IEEE International Conference on RFID, RFID 2012
CountryUnited States
CityOrlando, FL
Period12/4/312/4/5

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

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  • Cite this

    Sato, Y., Igarashi, Y., Mitsugi, J., Nakamura, O., & Murai, J. (2012). Identification of missing objects with group coding of RF tags. In 2012 IEEE International Conference on RFID, RFID 2012 (pp. 95-101). [6193063] (2012 IEEE International Conference on RFID, RFID 2012). https://doi.org/10.1109/RFID.2012.6193063