I. Analysis of global machine vision production and marketing in 2017With the wave of industry 4.0 coming, machine vision will get rid of the status of "auxiliary tool" and become the "eye" and "brain" of production system. At present, machine vision has already developed in developed countries, and the industry has entered a stable growth period.At present, the scale of global machine vision market is between 4.5-7 billion US dollars: in 2016, the scale of global machine vision market is about 6.2 billion US dollars, with an average compound growth rate of about 12% in 2002-2016; in 2015, the scale of global machine vision system and component market is 4.2 billion US dollars, with a figure of about 4.6 billion US dollars in 2016, and in 2017, the scale of global machine vision system and component market reaches 5 $0 billion.II. Comparison of Chinese and foreign machine vision market in 2017With the transfer of global manufacturing center to China, Chinese machine vision market is becoming an important target market for International Machine Vision manufacturers after North America, Europe and Japan. At present, the Asia Pacific region, including China and Japan, accounts for more than 20% of the world's share and has surpassed Europe, ranking the second largest regional market in the world.From the perspective of global market, the machine vision industry has become mature. In recent years, the number of patents in foreign machine vision market has declined year by year. The global distribution of machine vision patents is mainly concentrated in the United States, Europe, Japan and other developed countries, and the European and American technology in the field of machine vision is in a dominant position.From the perspective of application distribution, the application and popularization of machine vision abroad are mainly reflected in the semiconductor and electronic industries, of which about 40% - 50% are concentrated in the semiconductor industry. In addition, machine vision system has been widely used in various aspects of quality detection, and its products play an important role in the application.In terms of regional distribution, the early development of machine vision was mainly concentrated in Europe, America and Japan. With the transfer of global manufacturing center to China, China's machine vision market is becoming an important target market for International Machine Vision manufacturers after North America, Europe and Japan, while the market share of Europe and America has declined steadily. But overall, North America is still the largest market for machine vision, accounting for about 35-40%.At present, the Asia Pacific region occupies the leading position in the global market of machine vision system and its components, and is also the fastest growing region in the market of machine vision system. During 2011-2017, the compound annual growth rate reached 11%. Next is North America, which accounts for more than 30% of the market share, becoming the second largest growth area of the global machine vision market.III. current situation of domestic patent application: the number of annual patents steadily increased and patent holders concentrated in the southeast coastThe number of domestic machine vision patents is increasing year by year. Many universities and enterprises have invested in the field of machine vision research. The domestic machine vision industry is in a rapid development stage. The domestic machine vision industry is mainly concentrated in the coastal developed provinces and Beijing, and the number of patents in Jiangsu, Guangdong, Zhejiang, Beijing and Shanghai accounts for 75% of the total number of applications.Number of industrial enterprises: at present, there are more than 100 international machine vision brands in China. In addition to the old brands such as vision image, there are more than 102 machine vision enterprises in China. There are more than 200 agents for machine vision products, and more than 50 professional machine vision system integrators, covering light sources, industrial cameras, industrial lenses, image acquisition cards and smart cameras. All machine vision industry chain products.