摘要
为了适应无线传感器网络资源受限的特点,提出一种多传感器数据融合算法,算法在传感层和网络层之间增加数据融合层,将采集的数据分为实时数据和非实时数据,对数据进行约简处理,提高传感器节点传输被采集信息的效率.利用TinyOS进行仿真测试,结果表明:数据融合算法可以有效地减少网络中数据通讯流量,节省传感器节点能量,延长网络生存时间.
The author promotes a WSN data reduction algorithm in order to adapt the limitation of the WSN source. The algorithm in- creases data fusion layer between sensing application layer and routing layer. In this paper, the sensed data from the sensor nodes are divided into two types. By using the data reduction algorithm, sensor nodes only transfer the emergent data and the changed information of usual sensed data to sink node. And the sink node recruits the full sensed data. Finally, we implement the data reduction algorithm in TinyOS. Experiment results show that the data reduction algorithm can save energy without losing the sensed information.
出处
《小型微型计算机系统》
CSCD
北大核心
2009年第9期1734-1737,共4页
Journal of Chinese Computer Systems
基金
国家"八六三"高技术研究发展计划项目(2001AA415320)资助
关键词
无线传感器网络
数据约简
约简算法
数据融合
wireless sensor network
data reduction
reduction algorithm
data fusion
