US 11,681,062 B2
System and a method for vibration monitoring
Michel Pearson, Quebec (CA); Anthony Gerard, Montreal (CA); Pierre-Claude Ostiguy, Verdun (CA); and Philippe Laliberte, Quebec (CA)
Assigned to SYSTEMES DE CONTROLE ACTIF SOFT DB INC., Quebec (CA)
Filed by SYSTEMES DE CONTROLE ACTIF SOFT DB INC., Québec (CA)
Filed on Nov. 10, 2020, as Appl. No. 17/93,903.
Claims priority of provisional application 62/934,177, filed on Nov. 12, 2019.
Prior Publication US 2021/0141106 A1, May 13, 2021
Int. Cl. G01V 1/00 (2006.01); G01V 1/16 (2006.01); G01V 1/24 (2006.01); G01V 1/22 (2006.01)
CPC G01V 1/003 (2013.01) [G01V 1/16 (2013.01); G01V 1/22 (2013.01); G01V 1/24 (2013.01); G01V 2210/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system for vibration monitoring, comprising:
a master station preset for recording vibrations at a master trigger threshold;
a secondary station, the secondary station and the master station being time synchronized,
a server in communication with the master and secondary station;
wherein said master station is positioned at a position uncontaminated by vibration perturbations unrelated to vibration events originating in the operation site; said secondary station is positioned at a position potentially impacted by the vibration events originating in the operation site;
wherein the master station is configured to transmit a master trig time to said server and to start recording vibrations as soon as the master trigger threshold is exceeded; said server is configured to store the master trig time; said secondary station is configured to detect the master trig time stored by the server, and upon detecting the master trig time, to record vibrations;
wherein said master and secondary stations are configured to transmit respective recorded vibrations to said server and said server is configured to classify the recorded vibrations in relation to respective preset seismic thresholds of the master station and the secondary station, and:
i) if the vibration levels on the master station and the secondary station exceed a respective seismic threshold, the server detects an event originating in the operation site and emits a notification message;
ii) if only one of the master station and the secondary station exceeds its respective seismic threshold, the server detects a false-positive event.