基于射频识别无线传感器网络的电能表系统数据库研究

Investigation of watt-hour meter system database based on radio frequency identification and wireless sensor networks

研究了采用射频识别技术的电能表无线传感器网络系统。通过运用虚拟化的元数据模型与目录服务相结合,提供元数据目录服务,并在此基础上提出了单一数据访问接口,从而实现网格环境下统一的数据访问。介绍了时钟同步算法在无线传感器网络中的应用及需求,分析了性能参数和时间同步的误差,阐述了基于层次的传感器网络时间同步算法。

A wireless sensor networks （WSN） for the watt-hour meter based on the radio frequency identification is investigated. Combining the virtual Meta data model with directory service, the Meta data directory service is offered. On the basis of this study, a uniform data interface is put fox,yard so that the uniform data access is realized in the grid environment. Then the application and requirements of the time synchronization algorithm in the WSN is introduced. The error of time synchronization and property parameters of the WSN are analyzed. Finally, the algorithm for time synchronization of the WSN base on the administrative level is discussed.