There’s recent research into using Bluetooth beacons in mines. The paper by Department of Energy Resources Engineering, Pukyong National University, Korea on Analysis and Diagnosis of Truck Transport Routes in Underground Mines Using Transport Time Data Collected through Bluetooth Beacons and Tablet Computers analyses truck travel times.
Beacons are detected by truck mounted tablet computers and analysed by a cloud server. This was tested in a limestone mine located in Jeongseon, Korea. The system is able to detect sections of routes that are stable and unstable so as to highlight areas that need further analysis and remediation to improve transit flow.
