Design and Implementation on LoRa-based Fault Diagnosis Device of Automatic Weather Stations
n order to improve the problems of high difficulty and time-consuming for manual localization equipment faults,a fault diagnosis device based on LoRa wireless communication technology is presented.The device is composed of four monitoring units and one master control unit,the STM32 system is used to implement the acquisition and processing of the relevant signals.The four mo-nitoring units are distributed in the key components of the automatic weather station and collect the power supply signals,sensor out-put signals and operating status information,and the LoRa technology is used to transmit the information to the main control unit.The main control unit summarizes and analyzes the information,which is combined with the built-in integrated fault diagnostic meth-ods to locate exact location of faults and output the locating results via the HMI screen,so as to assist the business staff in trouble-shooting in time.Test results show that the device can realize the automatic determination in the fault location of automatic weather stations,which can significantly shorten the troubleshooting time consuming and improve the efficiency of equipment protection.
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