Difference between revisions of "Control theory"
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A control system is a device that keeps a variable at a certain value, despite only knowing what the current value of the variable is. An example is a cruise control, which maintains a certain speed, but only measures the current speed, and knows nothing of the system that produces that speed (wind, car weight, grade). | A control system is a device that keeps a variable at a certain value, despite only knowing what the current value of the variable is. An example is a cruise control, which maintains a certain speed, but only measures the current speed, and knows nothing of the system that produces that speed (wind, car weight, grade). | ||
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| − | ==== | + | ==Blog posts== |
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| − | + | *[http://lesswrong.com/lw/dj/what_is_control_theory_and_why_do_you_need_to/ What is control theory?] by [[RichardKennaway]] | |
| − | + | *[http://lesswrong.com/lw/ek/without_models/ Without models] by [[RichardKennaway]] | |
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| + | [[Category:Concepts]] | ||
Revision as of 19:32, 25 June 2009
A control system is a device that keeps a variable at a certain value, despite only knowing what the current value of the variable is. An example is a cruise control, which maintains a certain speed, but only measures the current speed, and knows nothing of the system that produces that speed (wind, car weight, grade).
