- Volume 55 Issue 6
DOI QR Code
Analysis of Received Signal Strength Index from Bluetooth Beacons to Develop Proximity Warning Systems for Underground Mines
지하광산용 근접경고시스템 개발을 위한 블루투스 비콘 신호의 수신 강도 분석
- Baek, Jieun ;
- Suh, Jangwon ;
- Choi, Yosoon (Dept. of Energy Resources Engineering, Pukyong National University)
- Received : 2018.12.04
- Accepted : 2018.12.20
- Published : 2018.12.31
In this study, we analyzed the variations in the received signal strength index (RSSI) measured from Bluetooth beacons based on the strength and propagation direction of Bluetooth low energy (BLE) signal. Using a smartphone, we performed field experiments to investigate RSSI variations in the BLE signal transmitted by non-directional and directional beacons in an amethyst mine. In case of non-directional beacons, as the distance between the Bluetooth beacon and smartphone decreased, the RSSI increases, whereas as the BLE signal strength increased, the RSSI average gradually increased. The mean value of RSSI measured from the directional beacons was changed without relation to the facing angle between the Bluetooth beacon and smartphone. The results of this study can be used as basic data for developing a Bluetooth beacon-based proximity warning system for underground mines.
Grant : 광물자원 탐사.개발
Supported by : 산업통상자원부
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