The biggest change in the world at the end of the 20th century was the formation of global markets. The global market has caused unprecedented fierce competition, prompting companies to speed up the time to market for new products (TimetoMarket), improve quality (Quality), reduce costs (Cost), and improve the service system (Service). This is the enterprise T.Q.C.S. Although Computer Integrated Manufacturing System (CIMS) combines information integration and system integration, the pursuit of a more comprehensive TQCS enables enterprises to "at the right time, pass the right information to the right people in the right way in order to make the right decisions" , Which is "five corrects." However, this kind of automation requires a large amount of investment. It is a development model with high investment, high efficiency and high risk, and it is difficult for most SMEs to adopt. In China, small and medium-sized enterprises and quasi-large enterprises still follow the path of low-cost industrial control automation.