Manufacturing, as the cornerstone of modern industry, is ushering a new era with the continuous integration of AI, big data, IoT and other high-tech. As the main area of manufacturing, smart factory is a new stage of modern factory development, the core of which lies in interconnection of production equipment and production scenarios, production process digitization and intelligent management, analysis and application of production data. With the upgrading equipment, complicated processes, increased labor costs and the digital management requirements, a new round of scientific and technological revolution aimed at smart factories is imperative.