Design Of Video Identification Management System For Transmission Lines

Video identification technology can be applied to patrolling and fault monitoring of transmission lines to improve the accuracy and automation level greatly. A new video identification management system for transmission line is designed and implemented in this paper, which makes use of the determining influence of micro-meteorological parameter on the fault of transmission line caused by icing, galloping and sag to manage different identification functions integrated.The components of the video identification management system for transmission line is presented based on the research of the components and principle of video identification system. The corralation between micro-meteorological parameters and transmission line faults is analyzed to sum up the specific micro-meteorological parameters that cause the icing, galloping and sag fault of transmission line. Accoding to the request of transmission line video identification, requirement analysis and development program are discussed. Six kinds of transmission line fault can be identified accurately as required, which include ice thickness, galloping amplitude, angle and frequedcy, size of sag, bird nest on the tower, grower below the transmission line and stealing tower. Besides, the system has automatic operation mode which is implemented by calling the identification subprogram according to the micro-meteorological parameters. That can improve efficiency and save overhead. Finally, the system structure, flow of main program and identification subprogram, and database table are designed. The whole sysem is implemented in laborotory environment. VC++and SQL Server2000are applied as the developing tools in this system. Moreover, the application architecture of C/S and the ADO way of connecting to the database is used to develop and research. The methord of multithreading, raising priority and locking physical address are used to enhance real-time performance.Test results show that the system with frendly interface is easy to use, can satisfy the functional and real-time requirement, and has good practicality.