Wireless sensor networks for dust and gas surveillance application

High dense dust and gas in the underground environment or in the long distance tunnel is harmful and dangerous to the workers and drivers. Based on wireless sensor network we use a hybrid monitoring system to realize real-time and unmanned guard monitoring and lowering the potential safety hazard. We analyze the energy efficiency of S-MAC, T-MAC and B-MAC. The simulation results show that B-MAC is more energy saving and better meets the requirement of the actual expectation. Further researches about the comparison have been presented to facilitate the applicator spread.