摘要
对数据采集与处理时序有严格要求的无线传感器网络必须进行时间同步,不同的时间同步技术会影响整个网络的时间同步精度、算法复杂性、功耗及通信带宽等。研究现有的时间同步算法在铁路运输装备监测无线传感器网络应用上存在功耗和鲁棒性方面的限制,基于分簇思想,提出无线传感器网络的I-PTP算法。仿真结果表明,该算法能够在保证时间同步精度的同时,节约能量消耗,一定程度上提高实际应用水平。
Wireless sensor network（ WSN） which has strict requirements on data acquisition and processing needs time synchronization,and different time synchronization technology will affect time synchronization precision,complexity of algorithm,energy consumption,and communication bandwidth of WSN. The paper studies the restrictions of current time synchronization algorithm in energy consumption and robustness,and puts forward I-PTP algorithm based on cluster. The simulation result shows that this algorithm can guarantee the precision of time synchronization and reduce the energy consumption,which can improve the practical application level to some extent.
出处
《军事交通学院学报》
2016年第11期27-30,共4页
Journal of Military Transportation University
关键词
铁路运输装备
无线传感器网络
时间同步算法
railway transportation equipment
wireless sensor network（WSN）
time synchronization algorithm
