The process of automatic operation or control of a machine or device in accordance with specified procedures or instructions without any interference is aimed at "stabilization, accuracy and speed". Automation technology is widely used in industry, agriculture, military, scientific research, transportation, commerce, medical treatment, services and families.

The use of automation technology can not only liberate people from heavy physical work, part of mental work and harsh and dangerous working environment, but also expand human organ functions, greatly improve labor productivity, and enhance human ability to understand and transform the world. Automation equipment not only enables enterprises to better control expenditure budget, but also improve work efficiency.

Large-scale complete sets of equipment in automation system, also known as automation device. It refers to the process in which a machine or device operates or controls automatically according to specified procedures or instructions without any interference. Therefore, automation is an important condition and remarkable symbol of modernization of industry, agriculture, national defense and science and technology.