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以数据为中心(data-centric)的数据管理是当今公认的无线传感器网络数据管理模式,由于其通讯量小、可扩展性好、适应网络规模和拓扑变化等优良性能而受到日益广泛的关注。提出一套适用于无线传感器网络的数据管理底层协议,其基本功能是利用传感器节点的数据通讯和存储能力,使某区域的数据(包括历史数据)总保存在离该区域最近的传感器节点中,而不随最初采集该数据节点的关闭或移动而丢失或移动。该协议在网络中建立起的结构稳定性,使网络中的数据查询过程避免了因网络拓扑的动态变化造成的访问中断和路由更换,为以数据为中心(data-centric)的数据管理的可靠实现提供了支持。
Data-centric data management is today’s recognized data management model for wireless sensor networks. Due to its small amount of communication, good scalability and adaptability to the excellent performance of network size and topology changes, data management is receiving more and more attention. A set of data management protocol for wireless sensor networks is proposed. Its basic function is to make use of the data communication and storage capabilities of sensor nodes so that the data (including historical data) in a certain area is always stored in the sensor nodes closest to the area. Without losing or moving with the close or move of the node that originally acquired the data. The protocol builds on the stability of the network so that data in the network can be queried without interruptions and routing changes due to the dynamic changes in the network topology. It provides reliable data-centric data management Implementation provides support.