The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 14, 2021
Filed:
Mar. 19, 2015
Fisher-rosemount Systems, Inc., Round Rock, TX (US);
Terrence L. Blevins, Round Rock, TX (US);
Mark J. Nixon, Round Rock, TX (US);
Kurtis K. Jensen, Marshalltown, IA (US);
Mitchell S. Panther, Marshalltown, IA (US);
Deji Chen, Travis, TX (US);
Eric D. Rotvold, West St. Paul, MN (US);
FISHER-ROSEMOUNT SYSTEMS, INC., Round Rock, TX (US);
Abstract
A control technique controls a process in a manner that reduces the number of controller changes provided to a controlled device, and so reduces the power consumption of the controlled device along with the loading of a process control communications network disposed between the controller and the controlled device. This technique is very useful in a control system having wirelessly connected field devices, such as sensors and valves which, in many cases, operate off of battery power. Moreover, the control technique is useful in implementing a control system in which control signals are subject to intermittent, non-synchronized or significantly delayed communications and/or in a control system that receives intermittent, non-synchronized or significantly delayed process variable measurements to be used as feedback signals in the performance of closed-loop control.