Low-carbon technology innovation in the building industry:Patent analysis the mediating effect of green innovation

HU Yujie; LIU Meng; TANG Baojun

Abstract：The development of low-carbon technology is an effective means to achieve low-carbon transformation of the industries.However,there are currently more obvious shortcomings in the comprehensive tracking of low carbon technologies in a sector.This study provides a comprehensive assessment of low-carbon technology development and innovation in the construction sector using a scientometric approach and thematic modeling.Using the Derwent Patent Database as the data retrieval source,the patent families retrieved from the search query were subjected to two rounds of rigorous screening,and 640 patent families were retained as a result of the analysis.The development trend and geographical distribution of retained low-carbon technology innovation patents were investigated and analyzed,while the main path of the patent citation network was analyzed to dynamically track the changes in technological hotspots and the identification of cutting-edge technologies,and to determine the low-carbon technology development routes and innovation driving forces,so as to provide a specific reference for the development routes of low-carbon technological innovation in the construction industry.The results of the study show that:① Patent invention applications for low-carbon technological innovation in the construction industry show a surge in number,and technological innovation is mainly driven by global climate change and carbon emission reduction policies.② It is found that low-carbon building materials are the core area of low-carbon technological innovation in the construction industry,and it is a hot issue in the development of low-carbon technology.③ It is found that technologies such as building clean energy technologies,building energy-saving and carbon reduction technologies,building energy systems and smart manufacturing technologies are promising.④ In the building operation stage,low-carbon innovation behaviors in the building sector can be driven by exploring the efficacy of building energy systems in reducing carbon emissions in buildings and optimizing users'energy use behaviors.