首页> 外国专利> CLUSTER-BASED WIRELESS SENSOR NETWORK SUPPORTING MOBILITY FOR MOBILE SENSOR NODE AND WIRELESS SENSOR NETWORK THEREOF

CLUSTER-BASED WIRELESS SENSOR NETWORK SUPPORTING MOBILITY FOR MOBILE SENSOR NODE AND WIRELESS SENSOR NETWORK THEREOF

机译:基于集群的无线传感器网络支持移动性的传感器节点及其无线传感器网络

摘要

The present invention relates to a wireless sensor network system using a cluster structure and a wireless networking method using the same, wherein the cluster structure supports the mobility of a mobile sensor node by detecting the mobility of a mobile sensor node and allowing the mobile sensor node to access a new cluster based on a beacon signal when a cluster-based mobile sensor node moves. The wireless sensor network system using a cluster structure supporting the mobility of a mobile sensor node according to the present invention comprises at least one cluster head node, multiple cluster member nodes, and a base station. The at least one cluster head node is a mobile sensor node included in a cluster in a wireless sensor network, and a transmission cycle, T_beacon, of a beacon message for another mobile sensor node in the cluster is set in the cluster head node. The multiple cluster member nodes: are mobile sensor nodes transmitting data to a head node to which each cluster member node belongs among the cluster head nodes included in the cluster; have a function of calculating, from the beacon message, the signal strength of the cluster head node, and at the same time, a R_th value which is the signal strength to support data transmission is set; and calculate a distance from the cluster head node using the calculated signal strength of a cluster head node and the R_th value. The base station receives data on the cluster member nodes which are collected and transmitted by the cluster head node.
机译:本发明涉及使用集群结构的无线传感器网络系统和使用该集群结构的无线联网方法,其中该集群结构通过检测移动传感器节点的移动性并允许移动传感器节点来支持移动传感器节点的移动性。当基于群集的移动传感器节点移动时,根据信标信号访问新群集。根据本发明的使用支持移动传感器节点的移动性的集群结构的无线传感器网络系统包括至少一个集群头节点,多个集群成员节点和基站。所述至少一个簇头节点是包括在无线传感器网络中的簇中的移动传感器节点,并且在所述簇头节点中设置用于所述簇中的另一移动传感器节点的信标消息的传输周期T_beacon。多个集群成员节点:是将数据发送到集群中包括的集群头节点中的每个集群成员节点所属的头节点的数据的移动传感器节点;具有从信标消息计算簇头节点的信号强度的功能,并且同时设置作为支持数据传输的信号强度的R_th值;并使用计算出的簇头节点的信号强度和R_th值计算到簇头节点的距离。基站在集群成员节点上接收由集群头节点收集并发送的数据。

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