Automation: the profession of "liberating human hands"
With the least people, the least physical strength, do the most things, this is the dream of mankind has never stopped. So, there is automation, which is a "free human hands" professional. In the 17th century, guides, clocks and wind mill control devices were the forerunners of automation technology. In the 18th century, British mechanic Watt invented a centrifugal governor and connected it with the valve of a steam engine to form a closed-loop automatic control system for the speed of the steam engine. In the 19th century, British mathematician Babbage proposed the principle of program control. In the late 1950 s, modern control theory was born. So far, automation technology has been widely used in industry,
