By Topic

Situation assessment for process control

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Jakob, F. ; SYSECA Logiciel, Saint-Cloud, France ; Suslenschi, P.

Extase, a situation assessment system that finds the causes of alarm signals relating to the heating furnace of a distillation column, is presented. The system is centered around two design principles. First, heterogeneous knowledge is represented by causally describing process functions. Second, a hypothesis network that supports local search control, stores time-dependent dynamic information, and forms a basis for the explanation facility is progressively built. The motivations and requirements for this research are examined, the process environment that served as an example is described, and system implementation is discussed. Extase has been installed and tested in a refinery and has completed its first development cycle. The authors describe and discuss system implementation principles in detail. Finally, they present the results of field testing and assess the system's limits and strengths.<>

Published in:

IEEE Expert  (Volume:5 ,  Issue: 2 )