摘要
针对基于煤矿安全监测的Zig Bee网络中数据传输的特点,对Zig Bee原有路由算法进行改进,提出了一种多路径路由协议。在协议中,重点考虑煤矿发生突发事件时大量紧急数据的传输问题,在事发节点与协调器节点之间建立多条路径并发地传输数据,提高数据的传输速率和可靠性,并且在寻找多条路径时,只将RREQ分组转发给父节点或者满足能量和广播半径要求的网络深度更低的邻居节点。仿真结果显示,改进后的路由协议在数据量大、发包速率更快的情况下表现出更优的性能,满足煤矿安全监测的要求。
According to the features of data transmission in Zig Bee network applied in coal mine security monitoring,a multipath routing protocol is proposed by improving the existed Zig Bee routing algorithm. The multipath routing protocol focuses on the problem of massive urgent data transmission occurred in coal mine emergency. In this multipath routing protocol,data are transmitted concurrently through multiple paths between the node of the incident and the coordinator. And the transmission rate and reliability are improved. Furthermore,when looking for multiple paths,RREQ packets are only forwarded to the parent nodes or the neighbor nodes with the lower network depth,which meets the requirements of energy and broadcast radius. The simulation results show that the improved multipath routing protocol shows better performance when a large amount of data is transmitted in a faster rate and it can meet the requirements of coal mine security monitoring.
出处
《工业安全与环保》
北大核心
2015年第1期99-102,共4页
Industrial Safety and Environmental Protection
基金
河南省科技攻关计划项目(122102210444
142102210575)
