The process of automatic operation or control of an automated pipeline in accordance with specified procedures or instructions without any intervention. The goal is "stable, accurate and fast". Automatic assembly line technology is widely used in industry, agriculture, military, scientific research, transportation, commerce, medical care, service and family. The use of automated assembly lines can not only free people from heavy physical labor, some mental labor, and harsh and dangerous working environments, but also expand the functions of human organs, greatly improve labor productivity, and enhance human ability to understand and transform the world.

The automatic assembly line can form a complete system because it integrates sensing technology, driving technology, mechanical technology, interface technology, computer technology and other technologies. The automatic assembly line has various production needs in various countries. Effective integration and organization can optimize the overall equipment. Although the automatic assembly line is derived from the traditional production line, its effectiveness is far superior to the traditional production line, There are also many significant differences. Its main feature is that the automatic assembly line has very high automatic control, and the precision production rhythm that the traditional assembly line does not have. It is a unified automatic control system, and its work should be completed according to the specified process sequence.

In different application fields, different types of automatic lines have different structures, sizes, and functions. They basically include five parts: detection, mechanical body, information processing, input and output interfaces, and actuators. However, no matter what kind of automatic assembly line, it must be able to control, operate, drive and detect in terms of functions, and the control functions are completed by electronic devices. In the production of automatic assembly line, all sensors are used to detect signals. The control device calculates, transforms and stores its detection signals, and then gives instructions to the actuator through its interface circuit to achieve the corresponding work. The sensor detects the position, temperature, pressure, flow and other signals of the production line to enable the information processing components to analyze and process. The driving function is realized by the hydraulic cylinder motor, solenoid valve, pneumatic valve, manipulator and other executive components. The mechanical part is the main part of the automatic assembly line.