【摘要】 保障工业物联网中无线传感器节点的高速率数据采集和实时监控,时间同步是重要的技术之一。针对工业物联网中要求时间精度高、能量损耗小,传统的时间同步算法中同步随跳数聚累积,协调性、扩展性差以及鲁棒性等问题,提出分布扩散萤火虫时间同步算法。基于频率不同线性模型的萤火虫同步算法,解决晶振不同传感器的时间;广播式降低时间同步能耗,减小网络分组数据的传输量。通过仿真验证成对广播萤火虫同步方法在传感器节点上时间同步的有效性。更多还原

【Abstract】 For security industry IOT wireless sensor nodes in the high speed data acquisition and real-time monitoring,time synchronization is one of the important technologies. For industrial IOT required time with high precision,small energy consumption,but the traditional time synchronization algorithm in synchronization with problem such as the hop accumulation,coordination,poor extensibility and robustness,so propose the broadcasting firefly time synchronization algorithm,which based on frequency of different linear model,to solve the crystals different sensor time; broadcasting groups to reduce energy consumption of time synchronization,reduce the network packet data transmission. Pairs of broadcasting groups firefly synchronization method is validated the node on the effectiveness of time synchronization by computer simulation.更多还原