Remote Monitoring System Of Distribution Room Operating Environment Based On LoRa Network

With the development of society,the power consumption is increasing,and the power companies have higher and higher requirements for the operation and maintenance of the distribution network.The distribution room has the characteristics of large number,wide distribution and harsh environment.In the operation and maintenance of distribution network,the monitoring of operation environment of distribution room is relatively weak.The power distribution room is mostly in the basement,with poor ventilation and high temperature and humidity.The long-term operation of power distribution equipment in this environment can easily cause mildew and poor insulation of the equipment,which greatly affects the normal power distribution work.In addition,the fire caused by the ignition in the power distribution cabinet or the fire caused by the overheating of the equipment seriously threatens the safety of power distribution.However,the traditional periodic maintenance is difficult to ensure the timeliness and predictability of fault detection,which can easily lead to fault spread.Therefore,the design of a power distribution room operating environment monitoring system is of great significance to ensure the safe and normal operation of the power distribution room and avoid fires.In order to monitor the operating environment of the power distribution room,analyze the monitoring requirements firstly,and determine the temperature,humidity,ignition situation and smoke concentration in the power distribution room as the monitoring target according to the reference value and the achievability of monitoring among many environmental parameters.And the parameter indicators are set according to the relationship between it and the operating state of the power distribution room,and the monitoring index system of the operating environment of the power distribution room is established.Secondly,the effective acquisition of environmental parameters is realized.The parameter acquisition terminal of this system is mainly controlled by STM32,and parameter acquisition sensors with high reliability and strong anti-interference are used to obtain accurate operating environment parameters of the power distribution room.Next,the long-distance transmission of environmental parameter data is realized,and the LoRa communication technology is selected.Due to the characteristics of the long transmission distance of the LoRa technology,the LoRa single-hop networking method can meet the requirements of the communication between the terminal and the LoRa gateway within a range(such as power distribution stations,schools or hospitals,etc.).The gateway transmits the terminal data to the cloud platform for communication between the terminal and the cloud platform.Finally,the remote monitoring and alarm functions of the human-computer interaction interface are realized.The Ruimi cloud platform and Ruimi open source App are used,which have real-time monitoring functions and data download functions.After corresponding configuration and secondary development,real-time monitoring of operating environment parameters of power distribution room and abnormal alarm are realized.Based on LoRa network technology,this system realizes the remote monitoring scheme of Internet of Things for the operating environment of the power distribution room.Through environmental parameter acquisition performance test,single-hop networking communication test,real-time data upload test and alarm function test,it can realize effective collection of environmental parameters of the distribution room,remote monitoring and abnormal alarm function.Compared with the existing distribution room monitoring system,it is more reasonable in monitoring parameters,more superior in communication function and more convenient in human-computer interaction...