Community Power Monitoring System Based On LoRa Wireless Network Technology

Electricity is an indispensable resource in daily life,electric power brings people great convenience,but also brings some security risks.The nonstandard use of electricity by households may lead to the failure of power network,inconvenience to people’s life and production,and may lead to the occurrence of electrical fire,which directly threatens people’s life and property safety.In order to prevent the above situation and enhance the security of community power network,this paper designs a community power monitoring system based on LoRa wireless network technology,which is mainly used to monitor,store and alarm the power information of community residents.The main research work of this paper is as follows:(1)The design of the overall scheme of the system.The system consists of five parts:acquisition node,aggregation node,LoRa gateway,server and client.The acquisition node is responsible for acquiring the power information in the line;the aggregation node is responsible for collecting the power information in the bottom layer;the LoRa gateway is responsible for the connection between the LoRa network and the TCP network;the server is responsible for the receiving,processing and storage of data;the client can display the power consumption information of community residents in real time and give threshold alarm for abnormal conditions.(2)Design of data encryption scheme.In this system,AES symmetric encryption algorithm,RSA asymmetric encryption algorithm and password login are used to encrypt the data transmission safely,so as to prevent the electricity information of the household from leaking during the transmission.(3)Design of LoRa private protocol.This system uses LoRa private protocol to regulate the communication in LoRa network.(4)Software and hardware implementation of the system.It includes the software and hardware design of acquisition node,aggregation node,LoRa gateway and the construction of server and client.Through debugging,it is proved that the system is stable and reliable.It can realize the function of monitoring,storage and threshold alarm of community household electricity information.It can effectively strengthen the security of community power system and has high application value.