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Feedback Control, Cybernetics, and Robotics. What is a Robotic System?. A robotic system—a device that can measure its own state and take action based on it. History of Feedback Control. Ancient China two-foot-long bamboo straw which automatically regulated wine consumption!.
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What is a Robotic System? A robotic system—a device that can measure its own state and take action based on it.
History of Feedback Control • Ancient China • two-foot-long bamboo straw which automatically regulated wine consumption!
History of Feedback Control • Greek water clock
History of Feedback Control • Drebbel’s furnace
History of Feedback Control • Bonnemain’s chickens
History of Feedback Control • Windmills and fantails
History of Feedback Control • Watt’s centrifugal flyball “Governor” • The breakthrough in effectiveness and public recognition. • Built on the windmill and water regulation principles. • Huge impact on the Industrial Revolution
The Governor • Applying a known principle to a new application
Control Engineering Closed-loop control • Cruise control
Control Engineering • WWII advances achieved out of need for survival • Radar • Guided missles • Automatic pilots
Control Engineering • Norden Bombsight • Ending the war in both Europe and the Pacific
Soviet Union • Sputnik 1957 • International Federation of Automatic Control (IFAC) • First meeting held in Moscow 1960
US Response • The era of Modern Control begins with the Kalman Filter--1960 • combining and filtering information from multiple sensor sources • Highly accurate mathematic formula • Navigation systems transformed
Modern Control • Microprocessor 1969 • Industrial process control • Relies less on engineering intuition and more on internal system design
Linear time-invariant systems Design done graphically by hand Involves a great deal of intuition Design process is an engineering art An exact description of the internal system dynamics is needed A good knowledge of matrices and linear algebra is required Classical vs. Modern Systems