Node energy-saving method suitable for linear wireless sensor network

Abstract

The invention discloses a node energy-saving method suitable for a linear wireless sensor network. The node energy-saving method comprises the following steps: 1, constructing the linear wireless sensor network; 2, clustering a plurality of wireless sensor nodes in the wireless sensor network; 3, electing cluster head nodes in the cluster; 4, enabling the cluster head node to transmit the data tothe base station in a multi-hop transmission mode. The wireless sensor nodes in the linear wireless sensor network formed in the long and straight roadway are clustered, the cluster head nodes are elected according to the positions and energy of the wireless sensor nodes in the cluster, and the cluster head nodes transmit data to the base station in a multi-hop transmission mode, so the energy consumption of the wireless sensor nodes is balanced, the energy consumption is reasonable, the selected cluster head nodes are prevented from being too concentrated or too dispersed, the transmission energy consumption between the nodes in the cluster or between the cluster head nodes and the base station nodes is prevented from being too large, the life cycle of the wireless sensor network is prolonged, and node energy waste caused by premature paralysis of the wireless sensor network is avoided.

Description

technical field [0001] 本发明属于无线传感器网节能技术领域,具体涉及一种适用于线型无线传感器网络的节点节能方法。 Background technique [0002] 为了解决由于矿物开采带来地表沉陷和尾矿在地表堆存产生的环境污染问题,绝大多数方案使用充填管道将尾砂、水泥和碎石等各种充填材料制成浆体或膏体对采空区进行充填。 但是随着工作时间的持续增加,不同浓度的充填料浆在管道中皆会发生水化反应造成充填管道结块乃至堵管,一旦堵管或者发生爆管事故,会造成严重的环境污染和经济 loss. 现有矿山充填管道利用ERT传感器和无线传感网络技术,对矿山充填管道进行实时性检测和预警。 ERT传感器节点位置固定于充填管道上且矿山充填管道常置于长直巷道中,所有传感器节点组成线型网络拓扑结构。 线型网络拓扑结构中多个传感器节点多采用传统LEACH路由算法传输信号,传统LEACH路由算法是按轮(rounds)周期性地执行,每轮分为网络的成簇阶段和稳定工作阶段。 在成簇阶段,随机选出簇头节点,通过广播告知整个网络,其他节点根据接收信息的信号强度决定从属的簇;在稳定工作阶段,簇头节点收集簇内所有非簇头节点的监测数据,然后对其进行数据融合处理并将结果发送给基站。 LEACH协议在簇头节点选举保证了每个节点都有机会成为簇头节点,但其在簇头节点选举过程中没考虑节点的位置和节点的当前能量,有可能出现所选出的簇头节点过于集中或者过于分散,簇内节点与簇头节点之间或者簇头节点与基站节点之间的传输能耗过大,这样就会造成节点能量的浪费,导致整个网络的生存周期短。 Contents of the invention [0003] 本发明所要解决的技术问题在于针对上述现有技术中的不足,提供一种适用于线型无线传感器网络的节点节能方法,对长直巷道中形成的线型无线传感器网络中的多个无线传感器节点进行分簇,根据簇内无线传感器节点的位置和能量选举簇头节点,簇头节点以多跳传输方式将数据传输至基站,使得无线传感器节点的能量消耗均衡,耗能合理,避免所选出的簇头节点过于集中或者过于分散、簇内节点与簇头节点之间或者簇头节点与基站节点之间的传输能耗过大,增强无线传感器网络的生存周期,避免无线传感器网络过早瘫痪、造成节点能量的浪费,便于推广使用。 [0004] 为解决上述...

AI Technical Summary

Problems solved by technology

The LEACH protocol guarantees that each node has the opportunity to become a cluster head node in the cluster head node election, but it does not consider the position of the node and the current energy of the node during the cluster head node election process, and the selected cluster head node may appear Too concentrated or too dispersed, the transmission energy consumption between the nodes in the cluster and the cluster head node or between the cluster head node and the base station node is too large, which will cause a waste of node energy and lead to a short life cycle of the entire network

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