现代电子技术2024，Vol.47Issue(15)：14-18,5.DOI:10.16652/j.issn.1004-373x.2024.15.003
基于LoRa通信的无线发射台信号智能监测技术研究
Research on wireless transmitting station signal intelligent monitoring technology based on LoRa communication
摘要
Abstract
A wireless transmitting station signal intelligent monitoring technology based on LoRa communication is studied to achieve large-area wireless transmitting station signal coverage monitoring and effectively resist interference factors such as multipath interference and frequency selective attenuation during the process of monitoring.After the wireless transmitting station sends out signals,the signals are converted into digital ones for comparison,and effective transmitting station signals are identified.By cascaded LoRa networking and LoRa communication technology,the data is sent to the server for storage,so as to achieve the transmission of wireless transmitting station signals.The Chirp signals generated by baseband is modulated by frequency modulation and spread spectrum by cyclic shift factor(CSF),so as to expand the signal spectrum,enhance the anti-interference ability and transmission reliability of the signals and enhance the effect of signal monitoring.The experimental results show that the proposed method can be used to receive the transmitting station signals 2.5 km away from the LoRa terminal device,with a packet loss rate of 12%,and can accurately monitor whether there is transmission signals from the wireless transmitting station.关键词
LoRa通信/无线信号/发射台/智能监测/调频扩频/数字信号Key words
LoRa communication/wireless signal/transmitting station/intelligent monitoring/frequency modulation and spread spectrum/digital signal分类
电子信息工程引用本文复制引用
赵志刚,王磊,王兰忠..基于LoRa通信的无线发射台信号智能监测技术研究[J].现代电子技术,2024,47(15):14-18,5.基金项目
中国教育技术协会"十四五"规划重点课题:外语智慧教育环境技术支撑研究(G005) （G005）
