ALEXANDRIA, Va., Aug. 12 -- United States Patent no. 12,386,334, issued on Aug. 12, was assigned to Fisher-Rosemount Systems Inc. (Round Rock, Texas).
"Suspicious control valve performance detection" was invented by Shu Xu (Austin, Texas), James Beall (Bryan, Texas) and Mark J. Nixon (Thorndale, Texas).
According to the abstract* released by the U.S. Patent & Trademark Office: "Techniques for detecting suspicious performance of a throttling control valve (also referred to herein as a "valve") in a process plant are described herein. For each of N time periods, a computing device determines and analyzes process parameter values for process parameters related to a valve to determine a status of the valve for the time period. The computing d...