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Received:May 19, 2011 Revised:June 16, 2011
Received:May 19, 2011 Revised:June 16, 2011
中文摘要: 定位是无线传感器网络研究的一个热门课题。提出一种基于Zigbee的混合定位算法,将TOA(Time of Arrival)测距与DV_distance定位算法加以融合。TOA测得相邻节点间距离后,利用DV_distance获得未知节点到锚节点的累加距离并加以修正后对节点定位。其中TOA利用Zigbee网络中MAC(medium access controlsub-layer)层协议,无需增加额外硬件实现精准测距。该混合算法定位精度高,受网络中锚节点所占比例影响小,适用于大规模传感器网络定位。
中文关键词: 定位算法,Zigbee TOA DV_distance 无线传感器网络
Abstract:Localization is an emerging subject in the filed of Wireless Sensors Networks(WSNs). This paper describes a hybrid localization approach combinning TOA(Time of Arrival) ranging with DV_distance localization algorithm based on Zigbee networks. The main principle of hybrid scheme is using DV_distance to get the culmulative distance with correction, after ranging the neighbor-nodes distance by TOA. The TOA ranging based on MAC-layer protocal of Zigbee can get a perfect result with no additional hardwares. This approach shows perfect precision, less affected by the proportion of anchor nodes, which is quite suitable for localization in large scale WSNs.
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基金项目:安徽省教育厅自然科学基金(2005KJ004ZD)
引用文本：
贺宝岳,蒲宝明,李生金,王维维.一种基于Zigbee 的混合定位算法.计算机系统应用,2012,21(1):77-80
HE Bao-Yue,PU Bao-Ming,LI Sheng-Jin,WANG Wei-Wei.Hybrid Localization Algorithm Based on Zigbee.COMPUTER SYSTEMS APPLICATIONS,2012,21(1):77-80
贺宝岳,蒲宝明,李生金,王维维.一种基于Zigbee 的混合定位算法.计算机系统应用,2012,21(1):77-80
HE Bao-Yue,PU Bao-Ming,LI Sheng-Jin,WANG Wei-Wei.Hybrid Localization Algorithm Based on Zigbee.COMPUTER SYSTEMS APPLICATIONS,2012,21(1):77-80
