Research And Implementation Of Distribution Line Online Monitoring System Based On Internet Of Things Technology

The distribution line is the bridge between the high-voltage transmission network and the power users,which plays the role of distributing electric energy and transmitting electricity over short distances.During the operation of the distribution line,it will be affected by many factors,and there are potential safety hazards.If the hidden dangers cannot be discovered and eliminated in time,it may cause safety problems and even lead to large-scale blackouts,Therefore,online monitoring of distribution lines is particularly important.At present,the online monitoring and inspection of distribution lines mainly adopts the combination of manual inspection lines and unmanned aerial vehicles.This method has great limitations and there will be monitoring blind areas.In response to this problem,this paper designs a An online monitoring system for distribution lines based on IoT technology.Firstly,this paper analyzes the current research status of online monitoring systems at home and abroad,clarifies the functions and design requirements of the monitoring system,and compares several common wireless communication technologies to determine the choice of system communication methods.Completed the overall design of the system.In the hardware design,wireless communication technologies such as Internet of Things technology,ZigBee technology and GPRS communication are the core.According to the functions of the online monitoring system,the appropriate hardware modules or chips are selected and analyzed to design the terminal nodes,router nodes and coordinator nodes,and according to their The function and energy consumption are different,the power supply mode is selected,and the power supply module is designed.In the software design,according to the system function requirements,in the IAR Embedded Workbench development environment,the Z-Stack-CC2530-2.3.0-1.4.0protocol stack is used to complete the terminal nodes,router nodes and coordinator nodes and sensor groups in the system.The software design uses theUSR-GM3-V1.1.3.61 to complete the instruction setting and network configuration of the GPRS communication module USR-GM3,and the software design of using VB6.0to complete the system login interface and monitoring interface.Then,the energy consumption of the terminal nodes of different data acquisition periods is estimated,and the battery capacity of the joint power supply system is estimated by combining the data collection period and the number of self-supplied days of the terminal nodes in different illumination areas.Finally,set up an experimental platform to verify the system.Tests show that the system power supply has high stability and small voltage deviation.the tower tilt angle acquisition error is less than 1°,the humidity monitoring error is less than 1.5%rh,the temperature monitoring error is less than 0.5°C,the light intensity error is less than 2lx,in line with the "transmission line condition monitoring" Enterprise standards such as the General Technical Specification for Devices and the actual requirements for online monitoring.