By searching authoritative databases, it is common to confirm whether a research topic, technical solution, or achievement has been reported in the same or similar way both domestically and internationally, and to determine its innovation and uniqueness. This is commonly used in scientific research project initiation, scientific and technological achievement appraisal, patent application, and other processes. On the basis of searching for new literature, conduct qualitative and quantitative analysis on the screened literature, sort out the research context, core technical route, research hotspots and trends, and remaining problems, providing support for topic optimization, technical route design, and paper writing.