Spatial and temporal analysis on the distribution of active radio-frequency identification (RFID) tracking accuracy with the kriging method

Xin Liu, Jeremy Shannon, Howard Voun, Martijn Truijens, Hung-lin Chi, Xiangyu Wang

Research output: Journal article publicationJournal articleAcademic researchpeer-review

13 Citations (Scopus)

Abstract

Radio frequency identification (RFID) technology has already been applied in a number of areas to facilitate the tracking process. However, the insufficient tracking accuracy of RFID is one of the problems that impedes its wider application. Previous studies focus on examining the accuracy of discrete points RFID, thereby leaving the tracking accuracy of the areas between the observed points unpredictable. In this study, spatial and temporal analysis is applied to interpolate the continuous distribution of RFID tracking accuracy based on the Kriging method. An implementation trial has been conducted in the loading and docking area in front of a warehouse to validate this approach. The results show that the weak signal area can be easily identified by the approach developed in the study. The optimum distance between two RFID readers and the effect of the sudden removal of readers are also presented by analysing the spatial and temporal variation of RFID tracking accuracy. This study reveals the correlation between the testing time and the stability of RFID tracking accuracy. Experimental results show that the proposed approach can be used to assist the RFID system setup process to increase tracking accuracy.
Original languageEnglish
Pages (from-to)20451-20467
Number of pages17
JournalSensors (Switzerland)
Volume14
Issue number11
DOIs
Publication statusPublished - 29 Oct 2014
Externally publishedYes

Keywords

  • Radio frequency identification (RFID)
  • Spatial analysis
  • Spatial and temporal variation
  • Tracking

ASJC Scopus subject areas

  • Analytical Chemistry
  • Atomic and Molecular Physics, and Optics
  • Biochemistry
  • Instrumentation
  • Electrical and Electronic Engineering

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