基于LoRa的自动气象站故障诊断装置的设计与实现

Design and implementation of a LoRa-based fault diagnosis device for automatic weather stations

摘要:

为了改善人工定位设备故障难度高、耗时长的问题，设计了一款基于LoRa无线通信技术的自动气象站故障诊断装置。该装置包含4个监测单元和1个主控单元，通过STM32系统实现对相关信号的采集和处理。其中，4个监测单元分别布设在自动气象站的各关键组成部分，可采集相关供电信号、传感器输出信号和工作状态信息等，并通过LoRa通信将信息无线传输至主控单元。主控单元则对信息进行汇总和分析，结合其内置的故障综合诊断方法来定位出故障发生的准确位置，并经HMI屏幕输出定位结果，以协助业务人员及时排除故障。经测试表明，该装置能够实现自动气象站故障位置的自动判定，可大幅缩短故障排除耗时，提高装备保障效率。

Abstract:

In order to improve the problem of high difficulty and time-consuming to locate equipment faults manually, we designed a kind of LoRa wireless communication technology-based fault diagnosis device.The device has signal acquisition and fault diagnosis functions and contains four monitoring units and one master control unit, which use the STM32 system to implement the acquisition and processing of the relevant signals.The four monitoring units are located in the key components of the automatic weather station and are responsible for collecting information such as power supply signals, sensor output signals and operating status, and transmitting this information to the main control unit via LoRa technology.The main control unit summarizes and analyzes the information, combines it with its built-in integrated fault diagnostic methods to locate the exact location of the fault, and outputs the locating results via the HMI screen to assist the business staff in troubleshooting in a timely manner.Tests have shown that the device can realize the automatic determination of the fault location of automatic weather stations, which can significantly shorten the troubleshooting time consuming and improve the efficiency of equipment protection.