Design of optical and wireless sensors for underground mining monitoring system

Miner'health and safety is now considered as a major challenge, hence novel technologies such as optical sensors and wireless sensors networks (WSN) have been adopted to monitor underground mining. In this paper we propose a real time system for underground mining monitoring based on optical sensors and WSN. We treat the sensor deployment in underground tunnels and its impacts on underground mining monitoring system (UMMS). The dilemma of wireless and optical node deployment, efficient coverage and sensing in underground mining is detailed. Therefore, we are interested on the case of optical sensors use in UMMS. The introduced architecture may detect and localize damages such as strain vibration, temperature and humidity change. In this work, the suggested optical sensors (Raman, Brillouin, Fabery-Perot and Bragg) are used in UMMS.