Active low-frequency localization system used with passive near field imaging

Antti Ropponen, Henry Rimminen, Raimo Sepponen

    Research output: Contribution to journalArticleScientificpeer-review

    2 Citations (Scopus)

    Abstract

    In this study, a location system that combines a passive NFI and an active RFID system is introduced. The passive NFI system can locate people with an accuracy of about 30 cm. However, it cannot identify persons. The identification can be done using the low-frequency RFID location system that was developed. When these two systems are combined, people could be identified and located with an accuracy of 30 cm. This paper introduces a nearest cell location method and verifies its localization performance with tests. The RFID system itself can locate people with an accuracy of 0.64 m ± 0.31 m (S. D.) and distinguish two persons from each other reliably at a distance of 2.5 m.

    Original languageEnglish
    Pages (from-to)152-157
    Number of pages6
    JournalInternational Journal on Communications Antenna and Propagation
    Volume1
    Issue number2
    Publication statusPublished - 2011
    MoE publication typeA1 Journal article-refereed

    Keywords

    • Indoor localization
    • Low frequency RFID
    • Near field imaging

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