矿井环境BLE Mesh路由技术分析与改进

Analysis and Improvement of BLE Mesh Routing Technology in Mine Environment

在目前矿井环境下无线感知物联网建设需求的基础上,分析了BLE Mesh目前常用的几种路由技术。结合矿井网络的特殊性及未来发展的趋势性,洪泛路由协议具有协议简单、健壮性好、适应节点频繁进出网络等天然优势。但在实际应用中洪泛路由存在功耗较高、信道竞争冲突等问题,因此引入能耗参数和距离参数改善转发机制,控制节点转发优先权,抑制无效转发,减少竞争冲突,延长网络寿命。实验结果表明,相较于改进前,引入能耗参数和距离参数的管理型洪泛路由协议可以有效降低BLE Mesh网络丢包率,降低整体功耗,延长工作时间,能够更好地满足矿井无线感知物联网要求传输稳定可靠、网络生命周期长的需求。

Based on the requirements for wireless sensing IoT in the current mine environment,several routing technologies commonly used in BLE Mesh are analyzed.Combining the particularity of the mine network and the trend of its future development,the flooding routing protocol has natural advantages such as simple protocol,good robustness,and adaptability to frequent entry and exit of nodes.However,in practical applications,flooding routingalso has problems such as high power consumption and channel competition conflict.Therefore,energy consumption parameters and distance parameters are introduced to improve the forwarding mechanism,control forwarding priority of nodes,suppress invalid forwarding,reduce competition and conflict andextend network life.Experimental results show that,compared to the previous improvement,the introduction of a managed flooding routing protocol with energy consumption parameters and distance parameters can effectively reduce BLE Mesh network channel competition and conflict,reduce overall power consumption,and extendworkinghours,which meets the requirements of stable and reliable transmission and long network life cycle of mine wireless sensing IoT better.