中文摘要：

以数据为中心（data—centile）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。

英文摘要：

Data-centric data management has become the most widely accepted scheme for wireless sensor networks,It attracts more and more interests because of its merits in small amount of communication,its scalability and robustness to network scale changes and topology changes.This paper proposes a low layer data management protocol for wireless sensor networks.The protocol utilizes the node＇s capacity of data storage and communication to attach the data to the geographical region it belongs to,With this protocol,the data of one region is guaranteed to be always stored in the node closest to the region and not to get lost or move with the node＇s turning off or movement.The protocol ensures the stability of the network strncture,which efficiently avoids the interruption of the query or the changing of the routing.In this way our protocol provides supports to the reliable implementation of data-centric data management schemes.