Browsing by Author "Miekk-oja, Ville"

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  • Static beacons based indoor positioning method for improving room-level accuracy
    (2015-08-24) Miekk-oja, Ville
     Sähkötekniikan korkeakoulu | Master's thesis
    Demand for indoor positioning applications has been growing lately. Indoor positioning is used for example in hospitals for patient tracking, and in airports for finding correct gates. Requirements in indoor positioning have become more strict with demands for a higher accuracy. This thesis presents a method for improving the room-level accuracy of a positioning system by using static beacons. As a static beacon, Bluetooth low energy modules will be used to test how much they can improve room-level accuracy on top of an existing positioning system. First, base technologies used in indoor positioning are reviewed. These include but not limited to: WLAN, Bluetooth and Ultra-wideband. Then, general indoor positioning are reviewed. After that, Ekahau positioning system will be introduced, as it is used as the base positioning system in the proposed method. The Ekahau positioning system applies WiFi networks and a fingerprinting method. Next, tests and their results in the thesis are shown. In the first test, a received signal strength of a static emulated WiFi AP is measured indoors to study radio signal behaviour indoors and to investigate whether the proposed method could improve the room-level accuracy. Then in the second test, the proposed method is presented and tested with the Ekahau positioning system. The results showed that it is possible to improve the room-level accuracy by using static beacons.
  • Vianhallinta tietoliikenneverkoissa
    (2010) Miekk-oja, Ville
     Elektroniikan, tietoliikenteen ja automaation tiedekunta | Bachelor's thesis