US 12,287,256 B2
Vibrational alarms facilitated by determination of motor on-off state in variable-duty multi-motor machines
Robert T. Fayfield, Orono, MN (US); and Ryan Kornetzke, Plymouth, MN (US)
Assigned to Banner Engineering Corp., Minneapolis, MN (US)
Filed by Banner Engineering Corp., Minneapolis, MN (US)
Filed on Dec. 23, 2022, as Appl. No. 18/146,315.
Application 18/146,315 is a continuation of application No. 17/301,632, filed on Apr. 9, 2021, granted, now 11,585,726.
Application 17/301,632 is a continuation of application No. 16/109,441, filed on Aug. 22, 2018, granted, now 11,002,634, issued on May 11, 2021.
Claims priority of provisional application 62/549,581, filed on Aug. 24, 2017.
Prior Publication US 2023/0132266 A1, Apr. 27, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G01M 13/045 (2019.01); G01H 1/00 (2006.01); G05B 23/02 (2006.01)
CPC G01M 13/045 (2013.01) [G01H 1/003 (2013.01); G05B 23/027 (2013.01); G05B 23/0283 (2013.01); G05B 23/0289 (2013.01); G05B 23/0264 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A vibration sensing method comprising:
in a learn mode: generate at least one threshold as a function of a first set of vibration data; and,
in a run mode:
receive vibration data of a monitored mechanical unit;
compute at least one parameter based on the received vibration data;
compare the at least one parameter to the generated at least one threshold;
determine an on-off operational state of the monitored mechanical unit based on the comparison of the at least one parameter to the at least one threshold;
gate data processing of the vibration data based on the determined on-off operational state of the mechanical unit; and,
output at least one indication signal when the received vibration data exceeds the at least one threshold.