Multiple model supervisor control system and method of operation

Details Multiple model supervisor control system and method of operation Multiple model supervisor control system and method of operation

1996-06-26

1997-08-19

Elmore, Reba I.

Boots, shoes, and leggings

364180, G05B 1502, G05B 1918

Patent

active

056594674

ABSTRACT:
A multiple model supervisor control system (24) for use in a manufacturing environment (10) including a plurality of model based statistical process control units (14.sub.1 -14.sub.N) associated with equipment (#1-#N) is provided. The multiple model supervisor control system (24) includes a database (16) storing model coefficient shift data representing statistically significant drifts in output measurables that are associated with the model based statistical process control units (14.sub.1 -14.sub.N). A supervisor control unit (26) is coupled to the database (16) and is operable to access the coefficient shift data stored in the database (16). A multiple model map (30) of coefficient shift history is generated by the supervisor control unit (26) and shows the coefficient shift data against a common domain. A user interface (28) is coupled to the supervisor control unit (26) to provide user access to the multiple model map (30) to allow identification of problems caused by equipment drift and problems caused by environmental change.

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