US 11,703,849 B2
Predicting end of life for industrial automation components
Suresh R. Nair, Nashua, NH (US); Lee A. Lane, Medford, MA (US); Brian J. Taylor, Boston, MA (US); Yongyao Cai, Malden, MA (US); Burt Sacherski, Nashua, NH (US); Ashley M. Killian, Eastlake, OH (US); Kevin Zomchek, Nashua, NH (US); Michelle L. Poublon, Nashua, NH (US); Linxi Gao, Reading, MA (US); Timothy P. Wolfe, Medford, MA (US); Rebecca R. Jaeger, Somerville, MA (US); and Wayne R. Foster, Tyngsborough, MA (US)
Assigned to ROCKWELL AUTOMATION TECHNOLOGIES, INC., Mayfield Heights, OH (US)
Filed by Rockwell Automation Technologies, Inc., Mayfield Heights, OH (US)
Filed on Jan. 5, 2021, as Appl. No. 17/142,092.
Prior Publication US 2022/0214680 A1, Jul. 7, 2022
Int. Cl. G05B 23/02 (2006.01); G06N 20/00 (2019.01)
CPC G05B 23/0283 (2013.01) [G05B 23/0281 (2013.01); G05B 23/0291 (2013.01); G06N 20/00 (2019.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
determining a baseline lifetime model for a component connected to a machine functional safety system from an equation-based lifetime model, the component part of a system with physical devices, the baseline lifetime model generated from the equation-based lifetime model using initial environmental conditions and usage conditions;
monitoring environmental conditions and usage conditions of the component during usage of the component;
modifying the baseline lifetime model based on the monitored environmental and usage conditions of the component to produce a modified lifetime model for the component by inputting the monitored environmental and usage conditions of the component into one or more equations of the equation-based lifetime model to derive the modified lifetime model of the component being monitored;
tracking a lifetime progress of the component with respect to the modified lifetime model; and
sending an alert in response to lifetime progress of the component reaching a lifetime threshold associated with the modified lifetime model.