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Finland : Metso receives patent for Automated Root Cause Analysis.

The new automated determination of root cause does not rely on process models which enables major operational benefits across most complex process plants.

The U.S. Patent office has issued a patent for Automated Determination of Root Cause to Metso Automation USA, Inc. The patent was developed by Metso's ExperTune team, and is used in their PlantTriage Control Loop Monitoring software.

The key to assessing a control loop is to locate the original root cause of upsets. The new patented method determines the most likely root cause using a "big data" technique and it eliminates several costly and time-consuming steps in the problem-solving process.

''Our clients see the benefits in energy savings, production increases, and quality improvements. With the proper training and methodology, a single engineer can perform like a large team of engineers,'' says George Buckbee, General Manager, Automation, and the inventor of record.

The new tools are available in the current release of Metso ExperTune PlantTriage software which is an integral part of Metso's Control Performance Business Solution.

Applicable across many various unit operations

The new automated method determines the most likely root cause using a "big data" technique. First, it gathers real-time data from hundreds or thousands of controllers. Then, it looks at correlations between controllers, and especially at the effect of time-shifting on correlations. Since root causes come usually appear as the first in a series of similar events, the software is able to identify the most likely root cause from this combination of correlation and time shift.

Because the new technology does not rely on process models, it is very adaptable, and can be applied across many various unit operations. This is especially important in complex process plants where interactions are complex, and accurate dynamic process models may not be available.

Results of the automated analysis are displayed in a Process Interaction Map. The Process Interaction Map shows the relationship graphically, using bands of color to highlight the strongest correlations. For oscillatory interactions, the PlantTriage software also includes the Oscillation Details Problem-Solver.

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Publication:Mena Report
Date:Jul 8, 2014
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