Research On Substation Environment Monitoring System Based On LoRa

The substation is an extremely important part of the entire power grid system,and its stability is an important guarantee for the normal operation of the entire power grid system.Today’s power grid system has become more and more smart grid development,and smart substation as the main body of smart grid,its wide application in the future has become inevitable.There are still many problems in substations for Io T technology to be suitable for applications,such as the accuracy of data collected by sensors,the stability of data transmission,and the limitations of data transmission distance.This paper takes STM32F03C8T6 microcontroller as the core,and designs a LoRa-based substation environment monitoring system.The specific research contents of this paper are as follows:(1)A kind of substation environmental monitoring system is designed.The hardware part of the system includes two parts: monitoring node module and terminal module,and three sub-nodes,temperature and humidity node,water level node and sulfur hexafluoride node,are designed for monitoring node module,which are used to monitor temperature and humidity in the substation area,cable Ditch water level and concentration of sulfur hexafluoride gas around important power equipment.(2)Establish a connection between the monitoring node module and the terminal module through LoRa technology.Both the monitoring node module and the terminal module are equipped with LoRa chips,which realize the data transmission between the monitoring node module and the terminal module.After the terminal module receives the data collected by the monitoring node module,it will use its onboard 4G chip to receive the data.Sent to the cloud platform.(3)A cloud platform for environmental monitoring of substations is constructed.The basic functions and human-computer interaction of the cloud platform were debugged,and the visual display of the data collected by all monitoring nodes on the computer and mobile APP was completed,and the alarm function was set and tested to realize real-time feedback and early warning.After testing,the system has the advantages of strong stability,high accuracy,no need for manual assistance,more flexibility,simple operation,multi-point monitoring,remote monitoring,etc.,and the LoRa technology is reasonably applied in the substation environmental monitoring,which has improved significantly.the safety and reliability of the substation.