汪晓华,唐明,宋玮琼,羡慧竹,连利波,王剑.满足国家电网公司标准体系下的LoRa用能采集专网技术研究及应用[J].电测与仪表,2020,57(8):8-12. Wang Xiaohua,Tang Ming,Song Weiqiong,Xian Huizhu,Lian Libo,Wang Jian.Research and Application of Dedicated LoRa Electrical Energy Acquisition Network Under State Grid Standard System[J].Electrical Measurement & Instrumentation,2020,57(8):8-12.
Research and Application of Dedicated LoRa Electrical Energy Acquisition Network Under State Grid Standard System
Firstly, this paper explains why the current electrical energy acquisition technology is not very suitable in the complex, variable, new type, and weak planning application environment. After that, the advantages of LoRa technology are compared and analyzed, and the dedicated LoRa electrical energy acquisition network architecture based on the State Grid standard system is proposed. Then, a LoRa network based on "multi-forked tree" model is established. When assessing the communication quality, the paper takes the slave node receiving signal-to-noise ratio into consideration and proposes the Max Reliable Route Network(MRRN) and Best Route Network(BRN). To verify the dedicated LoRa network’s reliability, the network was built in several underground garages. The result shows that the coverage of LoRa signal reaches 100%, the area with good LoRa signal quality reaches 100%, and the success rate of continuous meter reading in a week reaches 100%.