Industrial automation technology is a comprehensive high-tech that uses control theory, instrumentation, computer and other information technology to detect, control, optimize, schedule, manage and make decisions on industrial production processes to increase output, improve quality, reduce consumption, and ensure safety, including industrial automation software, hardware and systems. As one of the most important technologies in the field of modern manufacturing in the 20th century, industrial automation technology mainly solves the problem of production efficiency and consistency. Whether it is a high-speed high-volume manufacturing enterprise or an enterprise that pursues flexibility, flexibility and customization, it must rely on the application of automation technology. The automation system itself does not directly create benefits, but it plays a significant role in improving the production process of enterprises:

1.Improve the safety of the production process;

2.Improve production efficiency;

3.Improve product quality;

4.Reduce raw material and energy consumption in the production process.

According to the statistics of international authoritative consulting institutions, the output ratio of investment in automation systems and enterprise benefits is about 1:4 to 1:6. Especially in capital-intensive enterprises, automation systems account for less than 10% of the total equipment investment, playing the role of "four or two appropriations". The traditional industrial automation system, that is, the mechatronics system, is mainly the control of equipment and production process, that is, by the mechanical body, power part, test sensing part, actuator, drive part, control and signal processing unit, interface and other hardware elements, under the guidance of the purposeful information flow of software programs and electronic circuit logic, mutual coordination, organic integration and integration, forming an orderly and regular movement of matter and energy, thereby constituting industrial automation systems or products.

In the field of industrial automation, the traditional control system has experienced the development process of base-type pneumatic instrument control system, electric unit combined analog instrument control system, centralized digital control system and distributed control system DCS.

With the development of control technology, computer, communication, network and other technologies, the field of information interaction and communication is rapidly covering all levels from the field device level of the factory to the control and management level. Industrial control machine system generally refers to the general term of automation technical tools (including automatic measuring instruments and control devices) for the measurement and control of industrial production processes and their mechanical and electrical equipment and process equipment. Today, the simplest understanding of automation has also shifted: the use of machines in generalized sense, including computers, to partially replace or completely replace or surpass human physical strength.