Optimistic data retrieval in a process control environment

US11244221B2 · kind B2 · utility

Assignee

• Aveva Software, LLC · US

Inventors

• Vinay T. Kamath · Rancho Santa Margarita, US
• Yevgeny Naryzhny · Modjeska, US
• Alexander Vasilyevich Bolotskikh · Ladera Ranch, US
• Abhijit Manushree · Laguna Niguel, US
• Elliott Middleton · Tyler, US
• Bala Kamesh Sista · Lake Forest, US

Key dates

• Filing date: Jul 14, 2020
• Grant date: Feb 8, 2022
• Expiry date: Aug 4, 2040

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P90/02
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Processing raw data stored in an historian device for determining an amount of products passed through a process element in a process control environment is described. A count value is incremented by a counter at a rate at which products pass through the process element. The count value rolls over to zero when the count value reaches a rollover value R. An historian device periodically receives count value data points from the counter. A deadband value D is set in the historian device for distinguishing between rollovers, resets, and reversals. A client device queries the historian device for an amount of products passed through the process element for a timeframe. The historian device selects a set of count value data points from within the queried timeframe. The historian device determines, based on the selected data points and their quality, an amount of products passed through the process element.