一种台区本地双模通信网络信道与中继节点选择方法

A channel and relay node selection method for local dual-mode communication network in station area

泛在电力物联网的建设对台区通信网络提出了更高的要求,单一的电力线载波/微功率无线等通信技术已难以满足发展需求,一种将两种技术相融合的双模通信方案可以实现优势互补,通过相适应的信道选择有效实现可靠通信。首先研究了低压台区本地电力线载波、微功率无线等单模通信现状,分析了台区泛在物联非计量功能高级应用业务发展对本地通信网络的要求;依据台区双树通信架构,分析了表箱内、表箱间两种双模通信网络架构;并重点研究了两种架构下双模通信信道选择及中继优化选择方法,引入接收信号强度变化率实现对通信信道质量的量化评估,据此实现电力线载波/微功率无线信道的自适应优选,进一步地,在信噪比优选的概念下设计了中继节点优选方案。示范验证证明,方案可有效提高采集数据完整度与传输速率,实现对台区高级非计量应用业务的有效支撑。

The construction of ubiquitous power Internet of things(upIoT)puts forward higher requirements for the communication network in station area.Single power line carrier/micro power wireless and other communication technologies have been difficult to meet the development needs.A dual-mode communication scheme that integrates the two technologies can achieve complementary advantages and effectively achieve reliable communication through appropriate channel selection.Firstly,this paper studies the current situation of local power line carrier,micro power wireless and other single-mode communication in the low-voltage station area,analyzes the requirements of local communication network for the development of advanced application business of upIoT in station area;according to the dual-tree communication architecture in station area,analyzes two kinds of dual-mode communication network architectures in the meter box and between the meter boxes.And it focuses on the selection of dual-mode communication channel and relay optimization under the two architectures,introduces the change rate of received signal strength to realize the quantitative evaluation of communication channel quality,and accordingly realizes the adaptive optimization of power line carrier/micro power wireless channel.Furthermore,under the concept of signal-to-noise ratio optimization,it designs the optimization scheme of relay node.The demonstration shows that this scheme can effectively improve the data integrity and transmission rate,and realize the effective support for the advanced non measurement application business in the station area.The demonstration shows that this scheme can effectively improve the data integrity and transmission rate,and realize the effective support for the advanced non measurement application business in the station area.