Automation technology is widely used in industry, agriculture, military, scientific research, transportation, commerce, medical treatment, service and family. The adoption of automation technology can not only liberate people from heavy physical labor, some mental labor and bad and dangerous working environment, but also expand human organ functions, greatly improve labor productivity and enhance human ability to understand and transform the world. In the 1970s, the object of automatic processing manufacturers became large-scale and complex engineering and non engineering systems, involving many problems that are difficult to solve with modern control theory. The research on these problems has promoted the innovation of automation theories, methods and means, so there are large-scale system control and intelligent control of complex systems, and advanced automation systems that comprehensively utilize the achievements of computer, communication technology, system engineering and artificial intelligence, such as flexible manufacturing system, office automation, intelligent robot, expert system Decision support system, computer integrated manufacturing system, etc.