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hierarchical control

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hierarchical control [¦hī·ər¦är·kə·kəl kən′trōl]
(control systems)
The organization of controllers in a large-scale system into two or more levels so that controllers in each level send control signals to controllers in the level below and feedback or sensing signals to controllers in the level above. Also known as control hierarchy.


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As owners of power generation plants and electric distribution wires, they have been managing the power network using top-down hierarchical control for almost a century.
The statement said: "The weaknesses brought to light, in particular the deficiencies in hierarchical controls, carried on over a long period, throughout 2007, without being detected or rectified by the internal control systems.
The weaknesses brought to light, in particular the deficiencies in hierarchical controls, carried on over a long period, throughout 2007, without being detected or rectified by the internal control systems," it said.
 
 
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