基于IEEE1588精确时间同步的无线传感器网

无线传感器网(WSN)正在从要求不高的应用向要求更高的应用演进。分布式实体和事件的协调需要时间同步。虽然,已开发了很多用于WSN的时间同步方法,但某些应用需要高精度时间同步。精确时间同步支持应用的各种扩展。IEEE 1588精确时间协议(PTP)提供在一个网络中,一种具亚微秒精度、标准的设备同步方法。本文研究了在无线传感器网上,使用IEEE 1588的精确时间同步。使用IEEE 1588的精确时间同步提供了WSN中异构系统间的兼容性。

Wireless sensor networks are evolving from relatively undemanding applications to applications which have stronger requirements.The coordination of distributed entities and events requires time synchronization.Although a number of methods have been studied for WSNs,but some applications require high precision time synchronization.Precision time synchronization enables a variety of extensions of applications.The IEEE 1588 precision time protocol(PTP)provides a standard method to synchronize devices in a network with sub-microsecond precision.This paper deals with precision time synchronization using IEEE 1588 over wireless sensor networks.Precision time synchronization using IEEE 1588 provides compatibility between heterogeneous systems in WSNs.