论文部分内容阅读
时间同步是分布式系统实现的重要前提。分布式无线传感器网络在未来将扮演越来越重要的角色,它对于时间同步有很高的要求,是实现传感器数据融合、TDMA调度、定时触发的基础。但是,传感器网络自身的特点决定了现有的网络时间同步方法并不完全适合运用,需要被拓展来适应分布式传感器网络新的需求。本文分析了分布式传感器网络时间同步的特点,使用了基于层次结构的传感器网络时间同步方法,实验证明是可行的,适用于分布式传感器网络。
Time synchronization is an important prerequisite for distributed system implementation. Distributed wireless sensor network will play an increasingly important role in the future. It has high requirements for time synchronization and is the basis of sensor data fusion, TDMA scheduling and timing triggering. However, the characteristics of the sensor network determine that the existing network time synchronization method is not entirely suitable for use and needs to be extended to meet the new needs of distributed sensor networks. This paper analyzes the characteristics of time synchronization in distributed sensor networks, and uses time-synchronization method based on hierarchical structure in sensor networks. Experiments prove that it is feasible and suitable for distributed sensor networks.