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RFIDcover – A Coverage Planning Tool for RFID Networks with Mobile Readers

  • S. Anusha
  • Sridhar Iyer
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3823)

Abstract

Radio Frequency Identification (RFID) finds use in numerous applications involving item identification and tracking. In a typical application, RFID tags are attached to the items and are periodically queried by readers. Using a fixed placement of readers to guarantee complete coverage of all tags in a given area at all times increases the deployment costs. Also, most practical applications do not need complete coverage at all times. It is enough to provide complete coverage periodically, say each tag being covered every τ seconds. For such applications, using mobile readers to cover the area would be more cost-effective.

Given an area to be covered completely within a period τ, determining the number of mobile readers required, their placement and movement pattern, is a difficult problem. We have developed RFIDcover, an automated coverage planning tool, that addresses this problem. Given an application scenario and reader specifications, RFIDcover determines an optimal number of readers required to guarantee complete coverage within the specified period τ. It also generates a layout giving the placement and movement pattern of the readers. The architecture of RFIDcover is generic and extendible, making it easy to implement different application scenarios. In this paper, we present RFIDcover implementation for a retail inventory tracking application scenario and evaluate its effectiveness.

References

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    Radio frequency identification - a basic primer. White Paper, AIM Inc WP-98/002R2 (2001), http://www.aimglobal.org
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    Finkenzeller, K.: RFID Handbook: fundamentals and applications in contactless smart cards and identification. dritte edn. John Wiley, Leipzig (2003)Google Scholar
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    Anusha, S., Iyer, S.: RFIDcover - a coverage planning tool for rfid networks with mobile readers. Master’s thesis, Indian Institute of Technology Bombay (2005)Google Scholar
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    Kershner, R.: The number of circles covering a set. American Journal of Mathematics 61, 665–671 (1939)MathSciNetCrossRefGoogle Scholar
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    Engels, D.W.: The reader collision problem. Technical report, epcglobal.org (2002)Google Scholar

Copyright information

© Springer-Verlag Berlin Heidelberg 2005

Authors and Affiliations

  • S. Anusha
    • 1
  • Sridhar Iyer
    • 1
  1. 1.Indian Institute of Technology BombayIndia

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