Patents Knowledge Mapping Comparative Analysis In International And Domestic Of The Internet Of Vehicles

The internet of things technology is used to solve some problems of thetraffic areas after the internet of vehicles is the second Internet of things.Auto industrial power nations are actively promoting the patent research of the carnetworking. At present, the key technology research is involved in some low technicalareas, especially in the core technology breakthrough of our country car networking.Therefore, Patents Knowledge Mapping Comparative Analysis of the Internet ofVehicles has an important significance for the core technology research anddevelopment to guide our car network. We have discussed the related theory analysis ofdomestic and foreign car networking field development. The key technology patentdocuments have collected abroad Derwent patent database and Chinese patent databasefrom2009to2013.First of all, we have built car networking automotive sensors and CAN bustechnology hot spots and the technological frontier knowledge map at home and abroad,using the method of patents were cited and emergent word detection in CiteSpacesoftware. Mapping Knowledge and cited frequency table have been identifiedrespectively technology hot spot areas, frontier areas, display context and predictiontechnology development trend in the progress of technology, compared the differencesbetween international and domestic. Secondly, we have constructed car key networkingtechnology developer collaboration matrix by Bibexcel software co-occurrence analysis.Inventor cooperation network mapping have been built by Netdraws visualizationsoftware. Using social network analysis methods, we have analyzed cooperationsituation in research and have contrasted international collaboration features withdomestic developers. Finally, this paper put forward targeted countermeasures andsuggestions to catch up with core technologies of the car networking industry in China.