Siemens AG is a German multinational technology conglomerate. Its operations encompass automation and digitalization in the process and manufacturing industries, intelligent infrastructure for buildings and distributed energy systems, rail transport solutions, as well as health technology and digital healthcare services. Siemens is the largest industrial manufacturing company in Europe, and holds the position of global market leader in industrial automation and industrial software.
Headquarters in Munich
Werner von Siemens, co-founder of Siemens & Halske
First electric locomotive, built in 1879 by company founder Werner von Siemens
The company built airplanes during World War I, for example, this Siemens airplane in 1926 for Ernst Udet.
Automation describes a wide range of technologies that reduce human intervention in processes, mainly by predetermining decision criteria, subprocess relationships, and related actions, as well as embodying those predeterminations in machines. Automation has been achieved by various means including mechanical, hydraulic, pneumatic, electrical, electronic devices, and computers, usually in combination. Complicated systems, such as modern factories, airplanes, and ships typically use combinations of all of these techniques. The benefit of automation includes labor savings, reducing waste, savings in electricity costs, savings in material costs, and improvements to quality, accuracy, and precision.
Minimum human intervention is required to control many large facilities, such as this electrical generating station.
Ctesibius's clepsydra (3rd century BC)
Steam engines promoted automation through the need to control engine speed and power.
A flyball governor is an early example of a feedback control system. An increase in speed would make the counterweights move outward, sliding a linkage that tended to close the valve supplying steam, and so slowing the engine.
