Process control system with reconfigurable expert rules and control modules
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United States of America Patent
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Apr 9, 1991
Grant Date -
N/A
app pub date -
Sep 30, 1987
filing date -
Sep 30, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An integrated system for process control in which a process supervisor procedure (which is preferably the top-level procedure) is configured as a modular software structure, with modules which can be revised by a user at any time, without significantly interrupting the operation of the process supervisor. The modular software structure can define control parameters for many process control procedures, and can retrieve data from many sources (preferably including a historical database of process data, which can provide time-stamped data). The supervisor can also call on various expert subprocedures. Preferably the expert subprocedures can also be modified by an authorized user at any time, by calling up and editing a set of natural-language rule templates which correspond to the rules being executed by the expert subprocedure.
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