摘要
Wireless sensor networks are useful complements to existing monitoring systems in underground mines. They play an important role of enhancing and improving coverage and flexibility of safety monitoring systems.Regions prone to danger and environments after disasters in underground mines require saving and balancing energy consumption of nodes to prolong the lifespan of networks.Based on the structure of a tunnel,we present a Long Chain-type Wireless Sensor Network（LC-WSN）to monitor the safety of underground mine tunnels.We define the optimal transmission distance and the range of the key region and present an Energy Optimal Routing（EOR）algorithm for LC-WSN to balance the energy consumption of nodes and maximize the lifespan of networks.EOR constructs routing paths based on an optimal transmission distance and uses an energy balancing strategy in the key region.Simulation results show that the EOR algorithm extends the lifespan of a network,balances the energy consumption of nodes in the key region and effectively limits the length of routing paths,compared with similar algorithms.
无线传感器网络是到存在在地下的矿监视系统的有用补充。他们起监视系统的安全提高和改善范围和灵活性的一个重要作用。对在在地下的矿的灾难以后的危险和环境敏感的区域要求节点的节省并且平衡的精力消费延长网络的 lifespan。基于一条隧道的结构，我们在场一个长链类型无线传感器网络(LC-WSN ) 掘监视地下的矿的安全。我们定义最佳的传播距离和关键区域和礼品的范围为 LC-WSN 到的一个精力最佳的路由(EOR ) 算法平衡节点的精力消费并且最大化网络的 lifespan。EOR 基于最佳的传播距离构造路由路径并且使用在关键区域平衡策略的一个精力。模拟结果证明 EOR 算法扩大一个网络的 lifespan，在关键区域平衡节点的精力消费并且有效地限制路由路径的长度，与类似的算法相比。
基金
Financial support for this work,provided by the National Natural Science Foundation of China(No.50904070)
the Science and Technology Foundation of China University of Mining & Technology (Nos.2007A046 and 2008A042)
the Joint Production and Research Innovation Project of Jiangsu Province (No.BY2009114)
