Research on the Innovatory Development of Global Intelligent Power Transmission and Maintenance Key Technologies Based on Patent Information Mining

This paper analyses the innovatory development of key technologies of global intelligent transmission operation and maintenance by mining the global patent data. Patent information analysis method and DDA patent analysis tool are used to analyze patent application situation, technology life cycle, technology distribution, dominant countries and institutions, and the latest development trend of technology This study draws the following conclusions: (1)technological innovation in the field of intelligent transmission operation and maintenance is very active, and patent applications are increasing significantly, which is still in the stage of rapid development; (2)patent technology mainly concentrates on the detection of faults in cables/transmission lines or power grids, circuit devices providing remote control of power grids, data processing systems or methods of power departments, etc.; (3)in recent years, technology fields such as manipulator, resource/workflow/ personnel or project management, dielectric strength testing or breakdown voltage testing are the hotspots of technological innovation; (4)the number of patents in China is much larger than that in developed countries such as Japan, the United States, South Korea, etc.; (5) the new patented technologies emerging in recent years are mainly focuses on the calculation based on neural network model calculation, image analysis and processing, satellite radio beacon positioning system, and in particular the neural network model calculation is the most significant growth.