RFID Based Location in Closed Rooms - Implementation of a location algorithm

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Abstract

This paper presents a new concept for determining the location of an RFID-tag without any additional hardware. For this positioning system standard RFID components with passive RFID-tags within the UHF range are used. The measurement is based on a location algorithm which makes use of the RSSI value of the UHF reader. The RSSI value is the return signal strength indicator and, as it is shown in the paper in hand, this signal correlates to the distance between the RFID tag and the antenna of the reader. This positioning system is especially useful indoors, where other positioning systems may not work. For this reason it could prove very useful in various logistics applications. The maximum distance from antenna to the tag is approximately between 0.5 m and 3 m. To this end a special algorithm is used to obtain stable calculation results. A minimum of two antennas is needed to get a two-dimensional location.
Original languageEnglish
Title of host publicationProceedings of the 5th International Conference on Informatics in Control, Automation and Robotics - ICINCO 2008
Pages135-140
Publication statusPublished - 2008
EventICINCO 2008 - 5th International Conference on Informatics in Control, Automation and Robotics - Funchal, Madeira, Portugal
Duration: 11 May 200815 May 2008
http://www.icinco.org

Conference

ConferenceICINCO 2008 - 5th International Conference on Informatics in Control, Automation and Robotics
CountryPortugal
CityFunchal, Madeira
Period11.05.200815.05.2008
Internet address

Keywords

  • Passive RFID
  • Location
  • RFID-standard-components
  • Positioning system
  • RSSI value

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