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作 者:张习博 ZHANG Xibo(Yanglingzhi Institute of Technology,Xianyang Shanxi,712100)
机构地区:[1]杨凌职院技术学院
出 处:《自动化与仪器仪表》2018年第11期7-10,共4页Automation & Instrumentation
摘 要:一般来说,传感器的节点必须要分布在外部环境中来对数据进行采集和传输,同时利用电池来进行供电,因此,对传感器节点的能量消耗必须要降低。因为ZigBee技术的特点是成本低、功耗低、数据速率低等,所以ZigBee技术就成为目前使用最为普遍的无线传感器网络通信技术[1]。文章主要通过设计和实现基于ZigBee的无线传感器网络数据采集系统,深入研究了ZigBee的协议体系结构,详细分析了AODVjr、ClusterTree、ZigBee等三种路由算法。本次主要研究的内容有:首先,详细介绍了ZigBee协议的体系结构,研究了ZigBee网络中节点设备的类型以及网络的拓扑结构,确定ZigBee网络路由策略,并为ZigBee技术中的路由算法的研究做准备;其次,分析了AODVjr和Cluster-Tree路由算法,结合AODVjr路由算法之中的最佳路径和ClusterTree路由算法的优点,并通过父子节点来传输数据包的方便性而分析出ZigBee路由算法;然后,提出了一种改进的ZigBee路由算法,在一定程度上减少了ZIgBee网络的端到端时延,均衡了网络中传感器节点的能量,且提出了相应的改进办法。最后实验结果表明,改进后的路由算法减少了ZigBee节点之间的跳数和时延,以及提高了路由的效率。In general, sensor nodes must be distributed in the external environment to collect and transmit data, and use batteries to supply power. Therefore, the energy consumption of sensor nodes must be reduced. However, because ZigBee technology is characterized by low cost,low power consumption, low data rate and so on, ZigBee technology has become the most widely used wireless sensor network communication technology [1]. By designing and implementing the data acquisition system of wireless sensor network based on ZigBee, the protocol architecture of ZigBee is deeply studied, and three routing algorithms, AODVjrCluster-Tree, are analyzed in detail. The main contents of this pa- per are as follows : firstly, the architecture of ZigBee protocol is introduced in detail, the types of node devices in ZigBee network and the topology of the network are studied, and the routing strategy of ZigBee network is determined. And prepare for the research of the routing algorithm in ZigBee technology. Secondly, this paper analyzes the AODVjr and Cluster-Tree routing algorithms, combines the best path of AODVjr routing algorithm and the advantages of Cluster-Tree routing algorithm, and analyzes the ZigBee routing algorithm by using the parents and children nodes to transmit data packets conveniently. Then, an improved ZigBee routing algorithm is proposed, which can reduce the end-to-end delay and equalize the energy of sensor nodes in ZigBee network to some extent. Finally, the experimental results show that the improved routing algorithm reduces the number of hops and delays between ZigBee nodes, and improves the efficiency of routing.
关 键 词:ZIGBEE无线传感器网络 数据采集 ZigBee路由算法及其改进 cluster-tree AODVJR
分 类 号:TP273[自动化与计算机技术—检测技术与自动化装置]
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