基于LoRa的无线电气象参数集成监测系统设计

Design of integrated radio meteorological parameter monitoring system based on LoRa

通过无线电气象参数可以获得影响无线电波变化的气象参数变化规律.为研究各种气象变化对无线电波的影响,对无线电气象参数进行准确测量和数据的远程传输与管理,提出了一种基于LoRa的无线电气象参数集成监测系统.系统以LoRa技术为核心进行自组网设计,采用北斗短报文技术进行远距离通信.气象监测节点采用低功耗的STM32微处理器,通过移植uCOS-III实时操作系统来实现多传感器集成模块的多任务调度,远程终端采用Qt设计了配套的上位机软件进行无线电气象参数实时处理分析.实测结果表明,在通信距离小于2 km时,LoRa数据传输丢包率小于10%,上位机软件可准确显示并存储无线电气象数据.系统具有稳定可靠、集成度高、组网便捷、通信距离远等特点,可以实现对复杂环境中无线电气象参数的实时采集和远程管理,这为气象学研究提供了有效的无线电气象参数数据.

The meteorological parameters can characterize the law of change and characteristics of radio waves.In order to study the impact of various meteorological changes on radio waves,it is necessary to accurately measure and remotely manage radio meteorological parameters,thus we propose the design and implementation of an integrated monitoring system for radio meteorological parameters based on LoRa.The specific design and implementation scheme are as follows:using LoRa as a wireless communication transceiver device,long-distance communication using Beidou short message technology,using low-power STM32 microprocessor at the meteorological monitoring node,which is transplanted with uCOS-III real-time operating system to realize multi-task scheduling of multi-sensor integrated system,using Qt to design the matching host computer software for real-time processing,analysis and display of weather data at the remote terminal.The measured results show that the data transmission packet loss rate is less than 10%,and the host computer software can accurately display and store weather data when the communica-tion distance is less than 2 km.The system has the characteristics of stability,reliability,high integration,network convenient,and long communication distance.It can realize real-time collection and remote management of radio meteorological parameters in complex environments,which provides effective meteorological parameter data for radio meteorology research.