Novo rešenje za detekciju prisustva i kretanja ljudi u prostorijama na osnovu analize signala u bežičnoj senzorskoj mreži
A novel solution for indoor human presence and motion detection in wireless sensor networks based on the analysis of radio signals propagation
Author
Mrazovac, BojanMentor
Temerinac, MiodragCommittee members
Teslić, Nikola
Popović, Miroslav

Kukolj, Dragan

Đorđević, Jovan
Temerinac, Miodrag
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Show full item recordAbstract
Neregularnost prostiranja radio talasa je uobičajeni fenomen koji utiče na kvalitet radio veze u okviru bežične mreže, rezultujući različitim obrascima prostiranja radio talasa. Ova teza daje predlog nekoliko postupaka analize prostiranja radio talasa u cilju bez-senzorskog otkrivanja prisustva i kretanja ljudi unutar postojeće bežične mreže. Indikator primljene snage radio signala predstavlja osnovni element analize, iz kog se izdvajaju informaciono, amplitudsko i frekventno obeležje. Analizom navedenih obeležja moguća je realizacija robusnog postupka bez-senzorske detekcije ljudi koja se može primeniti u različitim rešenjima ambijentalne inteligencije, zahtevajući minimalan broj elemenata fizičke arhitekture, neophodnih za uspostavljanje korisnički svesnog okruženja.
Radio irregularity is a common and non-negligible phenomenon that impacts the connectivity and interference in a wireless network, by introducing disturbances in radio signal’s propagation pattern. In order to detect a possible presence of a human subject within the existing radio network sensorlessly, this thesis analyze the irregularity data expressed in a form of received signal strength variation. The received signal strength variation is decomposed into information, amplitude and frequency characteristics. The combination of these three characteristics analysis enables the definition of robust and cost-effective device-free human presence detection method that can be exploited for various ambient intelligence solutions, requiring the minimum hardware add-ons that are necessary for the establishment of a user aware environment.