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http://dx.doi.org/10.6109/jicce.2021.19.3.161

Design of System for Accurate Tracking Services in Environments with Obstacles  

Oh, Am-Suk (Department of Digital Media Engineering, Tongmyong University)
Publication Information
Journal of information and communication convergence engineering / v.19, no.3, 2021 , pp. 161-165 More about this Journal
Abstract
Since the first commercialization of beacon-based services in 2011, various services have been provided to improve Bluetooth performance, and research has been conducted to accurately recognize user locations using beacons. The various measurement methods of indoor positioning systems (IPS) include methods using receiver signal strength indicator (RSSI) the strength of which varies greatly in accuracy depending on whether there are obstacles such as cement walls or doors. In this paper, we present a method to provide accurate positioning services even in the presence of obstacles in indoor spaces. To this end, we connect the HM-10 module supporting the beacon with Arduino Uno, to place beacons in three directions in real-world indoor space, and derive an optimal trilateration equation. Based on the derivation, we select the optimal expression for calculating the distance between the beacon and the moving station and use it to verify the coordinate determination for the moving station.
Keywords
Receiver signal strengh indicator; Trilateration; Beacon positioning; Distance;
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