Classification of automatic control: semi-automatic and full-automatic application scope: important courses of industry, agriculture, military and scientific research: control principle of automatic control theory, application of automatic control, process automation, machinery manufacturing automation, management automation, automatic control system and characteristics of automatic control system. Control principle Automatic control includes semi-automatic and full-automatic. For example, machinery and equipment can be automatically produced according to production requirements and uses; Fully automatic people only need to be the author, determine the control requirements and procedures, and do not directly participate in the control technology of the production process; Semi-automatic control requires labor such as facilities, equipment, machinery, instruments or manual labor. Automation Control Automation control technology is widely used in industry, agriculture, military, scientific research, transportation, commerce, medical care, service and family. Using automatic control can not only liberate people from heavy manual labor, part of mental labor and bad and dangerous working environment, but also expand the function of human organs, greatly improve labor productivity and enhance human ability to understand and transform the world. Therefore, automatic control is an important condition and symbol for the modernization of industry, agriculture, national defense and science and technology. Automatic control theory is an important learning course for automation specialty. The application process of automatic control in the chemical treatment of fluid or powder in petroleum refining and chemical industry. Generally, a process control system consisting of measuring instruments, regulators and computers is used to optimally control heating furnaces, distillation columns and other equipment or the whole factory. The main control methods are feedback control, feedforward control and optimal control. Mechanical manufacturing automation is the result of the combination of mechanization, electrification and automatic control, and the processing object is discrete workpiece. Early mechanical manufacturing automation was a single machine automation or a simple automated production line using mechanical or electrical components. Since the 1960s, due to the application of electronic computers, CNC machine tools, machining centers, robots, computer-aided design, computer-aided manufacturing, automated warehouses and so on have emerged. A flexible manufacturing system suitable for multi-variety and small batch production is developed. In the automatic workshop based on flexible manufacturing system, coupled with information management and production management automation, a factory automation control system using computer integrated manufacturing system (CIMS) appeared. The automatic control of business management such as people, finance, goods, production and office in management automation factories or institutions is a comprehensive technology with information processing as the core and involving electronic computers, communication systems and control. Usually, a local area network consisting of multiple computers and various terminals with high-speed processing capability is adopted. Modern decision support system (DSS) is developed on the basis of management information system, which provides an alternative decision scheme for senior managers. Automatic control system Automatic control system refers to a system that can realize automatic control tasks, and consists of a controller and a controlled object. The concept of automatic control system refers to the automatic operation of a certain working state or parameter of a machine, equipment or production process according to a predetermined law by using additional equipment or devices without direct participation. Automatic control system is a technical measure to automatically control machinery, equipment and instruments that can be automatically adjusted, detected and processed, and automatically operate according to specified procedures or instructions. Its purpose is to increase output, improve quality, reduce cost and labor intensity, and ensure production safety.
The theory of automatic control of automatic control system is relative to the concept of manual control, which refers to the use of control devices to make the controlled object or process run automatically according to predetermined rules without anyone's participation. The research of automatic control technology is conducive to liberating human beings from complex, dangerous and complicated working environment and greatly improving control efficiency. Automatic control is a branch of engineering science, which involves the automatic influence of feedback principle on dynamic systems, so that the output value is close to what we want. From the perspective of methodology, it is based on the system theory of mathematics. The automatic control we are talking about today is a branch of cybernetics formed in the middle of the twentieth century.