Method and apparatus for monitoring process transitions
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United States of America Patent
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Jun 19, 2007
Grant Date -
May 26, 2005
app pub date -
Nov 2, 2004
filing date -
Nov 14, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for identifying modes and transitions during plant operation, wherein measured values of process variables are used to evaluate a current state of the process and its sections and subsections. An identified state of the plant is signaled and the plant is monitored for normal execution of any transition, identifying a current task being performed in the process and sending a message to different sections of the plant. Results are displayed on a visual display device and can be sent to other plant computer programs for guidance during the transition. A permanent chronological record of the sequence of events--modes and transitions--of the plant and sections and subsections including the pertinent plant conditions and information is generated for subsequent review and analysis.
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Cited Art Landscape
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