| With the rapid development of social science and technology,the widespread application of Io T technology in the smart grid is a natural consequence.As an important part of the smart grid,the status monitoring of transmission lines is an important means to ensure the safe and stable operation of the power system.Currently,transmission line condition monitoring technology is making up for the shortcomings of traditional manual inspections.However,with the continuous development of Io T technology,transmission line monitoring systems are mostly for a single physical volume monitoring,low integration,high monitoring costs and post-maintenance difficulties and other shortcomings have been unable to keep up with the construction of the Internet of Things in power.To this end,on the basis of the analysis and research of Io T technology,a transmission line condition monitoring system based on Io T technology has been designed in conjunction with the actual engineering requirements,and the main research content of the paper includes the following aspects.(1)Research on the theoretical basis and key technical features involved in system design,including intelligent sensing technology,wireless communication technology,.NET framework,SQLite database,etc.,to provide technical reference for power transmission line Io T construction.At the same time,according to the operating characteristics of the transmission line,analyze the system requirements from the perspective of engineering application,and combine with the power Internet of Things system architecture,design the overall structure of the system,and provide corresponding solutions for the follow-up work.(2)A multi-parameter integrated intelligent sensing terminal is designed according to the development needs of the ubiquitous Io T of power and the overall design of the system.The transmission line conductor voltage,conductor current,conductor dance acceleration,temperature and humidity acquisition,and the data transmission to the service side through wireless communication technology,with miniaturization,multisensing,integration and self-powered features.(3).NET framework and C# language to design a transmission line condition monitoring system software.Based on the functional design of the sensing terminal,the processing,analysis and storage of the collected data is realized.The system software uses a three-tier C/S architecture,and each part of the business logically remains relatively independent,facilitating software maintenance and expansion.NET data interface technology to effectively improve the efficiency of system software development.(4)Build an analog transmission line test platform to test the working performance of the system.The main tests include voltage sensing,current sensing,acceleration sensing,temperature and humidity sensing performance testing of sensing terminals,as well as overall system functionality testing.Experiments have shown that various types of sensors have good functional characteristics,and the system can work stably and reliably in an analog transmission line environment,confirming that the system design is feasible,can realize digital management of transmission line condition monitoring system,and can provide strong data support for line fault assessment and expert system establishment. |