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Erik Dahlquist

Stefan Backa

Thomas Liljenberg

Galia Weidl

A method and an analyzer for producing information associated with a process is disclosed. Information from information sources that associate with the process is processed to classify the information into characteristic states. Results of the classification are then analyzed for producing information associated with at least one root cause for an event by means of at least one analyzing technology that is capable of reasoning under at least one uncertainty.

Provision of process related information

A computer based method for controlling an industrial process that includes at least two unit processes, including the steps of directly controlling the process by a control model including one or more algorithms, and automatic diagnosis of the validity of the process data retrieved from the process for the purpose of preventing irrelevant process data from being used as an input in the control model.

Computer based method and system for controlling an industrial process

A method and a device for controlling a process ( ), having at least two sub-processes ( ), by tracking, processing and correcting variables for the product, the production means and/or any process media throughout the process line. The process flow for the first sub-process ( ) is divided into slices, each slice representing a specific volume of process flow. At least some of the measured and sampled variable values are related to its specific slice volume. Any variable value obtained is processed using a control and processing, unit ( ) with means for receiving, information on variable values on-line, means for presenting ( ) the process flow through the production units, means for dividing the process flow into slices, means for processing a variable value obtained, including means for relating, the variable value to is specific slice volume, means to develop one or more multivariate models based on variable values for a multiple of slice volumes and means to combine the multivariate model with a processed variable value for a specific slice volume to predict a variable value and/or a quality variable for subsequent second sub-process ( ). Corrective actions are executed in the subsequent second sub-process ( ) based on a processed variable value from the first sub-process ( ) using, actuating, means ( ) for execution of corrective action.

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Västerås, Sweden

Erik Dahlquist