基于信标时序补偿的机械振动无线传感器网络同步触发方法

发布时间：2018-03-03 11:53

本文选题：无线传感器网络　切入点：机械振动　出处：《振动与冲击》2014年03期 　论文类型：期刊论文

【摘要】：针对无线传感器网络(WSN)在实现机械振动同步采集过程中,采集节点应该同时触发采集命令,同步触发误差应在一个采样周期内的要求,设计了一种基于信标时序补偿思想的WSN同步触发协议STBTC_P(the Synchronization Trigger protocol based on Beacon Timing Compensation)。协议基于IEEE 802.15.4协议标准开发多跳树状网络,以信标负载方式传输采集命令,在利用集中关联信标分配法避免信标冲突并实现全网时钟同步后,采用基于信标时序补偿思想的同步触发方法实现机械振动采集命令的多跳同步触发,为最终提高机械振动同步采集精度创造使能条件。最后,在自研采集节点WSN-G2上运行STBTC_P协议,并验证了其有效性。
[Abstract]:In the process of realizing synchronous acquisition of mechanical vibration in wireless sensor networks (WSNs), the acquisition node should trigger the acquisition command at the same time, and the synchronization trigger error should be required in a sampling period. A WSN synchronization trigger protocol, STBTC_P(the Synchronization Trigger protocol based on Beacon Timing compensation, is designed based on the idea of beacon timing compensation. Based on IEEE 802.15.4 protocol, a multi-hop tree network is developed. After the centralized associated beacon allocation method is used to avoid the beacon collision and realize the clock synchronization in the whole network, the synchronization trigger method based on the idea of beacon timing compensation is adopted to realize the multi-hop synchronous trigger of mechanical vibration acquisition command. In order to improve the precision of synchronous acquisition of mechanical vibration, the enabling conditions are created. Finally, the STBTC_P protocol is run on WSN-G2, and its validity is verified.
【作者单位】：重庆大学机械传动国家重点实验室;
【基金】：国家自然科学基金资助项目(51375514) 高等学校博士学科点专项科研基金资助(20130191130001) 机械传动国家重点实验室科研业务费(SKLMT-ZZKT-2012 MS 09)资助
【分类号】：TP212.9;TN929.5

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