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Cooperative vehicle infrastructure integration technologies are research hotspots in the field of autonomous driving and transportation control. In order to summarize the development trend and blank field of vehicle infrastructure integration, this paper analyzes the vehicle infrastructure integration technology from the perspective of patent analysis, summarizes the development trends of technologies of cooperative vehicle infrastructure integration in the number of patent applications, applicants, technological know-how and technological effects. Additionally, this paper analyzes the technological decomposition of cooperative vehicle infrastructure integration from the perception level, communication level and application level, and interprets the representative patents of cooperative vehicle infrastructure integration technologies in each technological branch. The analysis results show that, at present, the innovation of cooperative vehicle infrastructure integration technologies take the improvement of safety, efficiency and accuracy as main goals, and environmental protection and comfort are also the important goals of the construction of cooperative vehicle infrastructure integration systems, which still belong to the patent blank and has a broad space for patent portfolio.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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