IPC 코드 시각화를 이용한 특허 분석: 태양광 발전 예측 진단 기술을 중심으로

"In order to understand the development trend of technology, it is necessary to collect and analyze data that is open to the public, including information on the technology. Among them, patents contain detailed information on developed technologies and are quickly released, making it easy to grasp technology development trends. There are various methods for identifying technology development trends using patents, but if the International Patent Classification assigned to patents is used, analysis can be performed in detailed technology units. In this paper, based on the international patent classification code, visualize and identify technology trends through bar graph, circular barplot, and network analysis. In this paper, applied patents are collected and used to verify whether the proposed method can be used in the actual industry. Experimental data are related to solar power prediction and diagnosis technology, and are applied for patent cooperation treaties in Korea, the United States, Japan, Europe, and so on. As a result of the experiment, the solar power prediction and diagnosis technology was developed separately from the power storage system and management and supervision technology in the early stage. Recently, however, it has been confirmed that technologies such as power storage, control, and prediction are being developed convergently."