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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==References==
 
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=====Less Wrong Articles=====
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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]]
 
  
=====Other Resources=====
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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]]
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*[http://lesswrong.com/lw/ek/without_models/ Without models] by [[RichardKennaway]]
  
 
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[[Category:Concepts]]

Revision as of 20:32, 25 June 2009

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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).

Blog posts