分布式无线传感器网络时间同步的模块化设计

Modular Design of Time Synchronization in Distributed Wireless Sensor Network

随着分布式无线传感器网络中时间同步在工程时间中的运用,针对时间同步的模块化进行了研究,设计了一种采用PTP协议的时间同步模块。使用STM32F103处理器和LORA无线传输模块实现了主从节点之间的精准时间同步,针对与世界协调时绝对同步的无线传感器网络,给予了改进方案,增加了无线传感器网络时间同步的便捷性。实验结果表明,时间同步模块主从节点能够达到亚微秒的时间精度,适用于各种无线传感器网络,并且能够满足大多数场景的精度要求,具有重要的实际应用推广价值。

With the application of time synchronization in engineering time in distributed wireless sensor networks,the modularization of time synchronization has been studied,and a time synchronization module using PTP protocol has been designed.Using the STM32F103 processor and the LORA wireless transmission module to achieve precise time synchronization between the master and slave nodes.For the wireless sensor network that is absolutely synchronized with the world coordinated time,an improved solution is given to increase the convenience of time synchronization of the wireless sensor network.The experimental results show that the master-slave nodes of the time synchronization module can achieve sub-microsecond time accuracy,are suitable for various wireless sensor networks,and can meet the accuracy requirements of most scenarios,and have important practical application promotion value.