Nowdays, as the key technology and basic industry for the Internet of things, RFID recieves unprecedented attention and rapid development. Thorough research on its technology trend and competitive posture will provide a scientific basis for the decision making of both relevant industry policies and business strategies. By using Derwent innovations index, two data samples are generated based on whether is distinguish tripartite patent or not. Comparative analysis on RFID patents are conducted through Derwent Manual Code Co-occurrence Networks, which reveal the key technology in the field. Then, three major competitive stages during the development of RFID are put forward based on time evolution analysis of Manual Code. At last, combining with the statistic result of regional patent, the further interpretation of overall development trend and the competitive posture in the field are made.
Key words
scienology and S&T management /
petrometrics /
visualization
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