关键词: 矿井, 无线传感器网络, 连通度, 网络效率, 生命周期

Abstract: The connectivity issue is the primary problem to address in building wireless sensor networks. Take the mine laneway as the background, three kinds of network structure are studied based on the rectangular, isosceles triangle and linear. The connectivity of the three kinds of network structure is researched use of the geometric analysis method, under the situation of the arbitrary ratio of the communication radius and the sensing radius. It obtains the algebraic relations between the communication radius and the sensing radius when the network kept 2 and 3 connectivity. The network performance is simulated in terms of the network connectivity, the system life cycles and the network efficiency. Simulation results show that the rectangular network use the resource of nodes more efficient, and prolong the network life cycles than the isosceles triangle and linear network in the same deployment area.

Key words: mine laneway, wireless sensor network, connectivity, network efficiency, life cycles