摘要
感知数据的查询是传感器网络数据管理的核心技术。分析数据查询集中式处理结构和分布式处理结构的特点,讨论分布式处理的Fjords和Cougar系统结构,着重研究聚集查询处理技术。
Query processing for sensor data is the core of data management of sensor networks. The characteristics of a centralized and a distributed system architecture are analysed.Two distributed system named Fjords and Cougar are discussed, respectively, the technologies of aggregate querying has been studied coinstantaneously.
出处
《舰船电子工程》
2008年第1期123-124,127+1,共4页
Ship Electronic Engineering
关键词
传感器网络
查询处理
数据聚集
sensor network
query processing
aggregate query
