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Research on power quality monitoring system for high speed railway based on ZigBee routing optimization algorithm

机译:基于ZigBee路由优化算法的高速铁路电能质量监测系统研究。

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Taking it into consideration that ZigBee routing algorithm fails to well select optimal path, a ZigBee routing optimization algorithm is proposed, selecting the shortest path with each node maintaining its own neighbor table, which is defined by IEEE802.15.4 standard. Besides, in order to avoid network congestion and excessive energy consumption of nodes, this paper considers the communication link busy status and residual energy of nodes, when the remaining energy of the nodes below the energy threshold, introducing the concept of standby nodes. NS2 simulation experiments show that improved algorithm reduces hop-counts, end-to-end delay and increases network packet delivery ratio. Since the purpose of the algorithm is to improve the real-time performance of the monitoring system by reducing hop-counts, this paper attempts to apply improved ZigBee routing algorithm to high-speed rail power quality monitoring system. Test result shows that system adopting this improved algorithm runs stability, and has high real-time.
机译:考虑到ZigBee路由算法不能很好地选择最佳路径,提出了一种ZigBee路由优化算法,选择了每个节点都维护自己的邻居表的最短路径,这是IEEE802.15.4标准定义的。此外,为了避免网络拥塞和节点过多的能耗,本文考虑了通信链路的繁忙状态和节点的剩余能量,当节点的剩余能量低于能量阈值时,引入了备用节点的概念。 NS2仿真实验表明,改进后的算法减少了跳数,降低了端到端时延,提高了网络报文的发送率。由于该算法的目的是通过减少跳数来提高监视系统的实时性能,因此,本文尝试将改进的ZigBee路由算法应用于高速铁路电能质量监视系统。测试结果表明,采用该改进算法的系统运行稳定,实时性高。

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