基于压电传感器的矿井瓦斯监测无线传感器网络设计
首发时间:2011-04-28
摘要:本文针对矿井瓦斯监测无缝覆盖的要求,提出了一种基于压电传感器、适合矿井应用环境的无线传感器网络。网络呈分簇式链状拓扑结构,以竞争学习的方式选取簇头节点。由簇头节点控制簇内节点的数据融合及路由选择。为减少网络信息冗余及节省能量消耗,利用覆盖配置协议(CCP)控制节点状态,使其在工作、侦听、休眠三种状态之间转换,从而实现传感器节点数最大化的休眠调度。节点传感器选用一种新型薄膜声波压电传感器(TFPAS),该传感器功耗小,灵敏度高,适用于无线传感器网络。
关键词: 无线传感器网络 网络拓扑 竞争学习 休眠调度 压电传感器
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Design of Coal Mine Wireless Sensor Networks based on Piezoelectric Sensors for Gas Monitoring
Abstract:IIn order to meet the seamless coverage requirments of coal mine gas monitoring, we propose a fomal classification of wireless sensor, based on piezoelectric sensors, which is suitable for the coal mine environment. The networks' topology is sub-cluster type, and the cluster head nodes is selected in competitive method. Data fusion and routing of the cluster nodes are controlled by the cluster head node. In order to reduce information redundancy and energy consumption, we use coverage configuration protocol (CCP) to control nodes states to switch between three states of working, listening and sleeping, enabling sensor nodes to maximize the sleep schedule. We use a new type of thin film acoustic sensors piezoelectric sensors (TFPAS) as the sensor node, this kind of sensor is of low power consumption, high sensitivity, which is suitable for wireless sensor networks.
Keywords: wireless sensor networks network topology competitive learning sleep scheduling piezoelectric sensor
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