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.
Type:
Grant
Filed:
November 2, 2004
Date of Patent:
June 19, 2007
Assignee:
National University of Singapore & Honeywell International