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为了可靠地监测井下设备的运行状态,延长设备无线监测网络的生命周期,采用一种新的路由协议代替Zigbee中的AODV协议.将煤矿井下液压支架运行状态无线监测系统中的监测节点分布简化为链式2层拓扑结构,应用Free-space无线信号传输模型寻找使该拓扑结构每回合能耗最小最优簇数,同时利用设备排列的有序性引入虚拟地址的方法来分簇,提出了一种基于Zigbee的虚拟地址能量有效分簇路由协议(ZVAEECP).仿真结果表明:该协议比Zigbee的AODV协议至少提高50%的网络生存周期,丢包率最大为0.87%,是相同情况下AODV的12%.ZVAEECP协议比AODV具有更长的网络生存周期和更高的可靠性,且路由表只需维护少数几条信息.该协议可以扩展应用到具有相似拓扑的其他设备中,适合在井下设备监测中应用.
In order to reliably monitor the operation status of downhole equipment and extend the life cycle of equipment wireless monitoring network, a new routing protocol is adopted to replace AODV protocol in Zigbee.The distribution of monitoring nodes in the wireless monitoring system for operating status of hydraulic supports in coal mines is simplified to Chain 2-layer topology, the Free-space wireless signal transmission model is used to find the minimum optimal energy consumption per round for this topology. At the same time, the order of the devices is introduced to cluster the virtual addresses, Zigbee-based Virtual Address Energy-efficient Clustering Routing Protocol (ZVAEECP) is proposed.The simulation results show that this protocol can improve network lifetime by at least 50% compared with Zigbee’s AODV protocol, with a maximum packet loss rate of 0.87%, which is the same for AODV 12% .ZVAEECP agreement than AODV has a longer network life cycle and higher reliability, and the routing table only need to maintain a few pieces of information.This protocol can be extended to other devices with similar topology, suitable for underground equipment Monitoring applications.