US 11,693,381 B2
Wireless emergency stop systems including mobile device controllers linked with safety stop devices
David Stagg, Flat Rock, NC (US)
Assigned to CATTRON NORTH AMERICA, INC., Warren, OH (US)
Filed by Cattron North America, Inc., Warren, OH (US)
Filed on Oct. 31, 2022, as Appl. No. 17/977,312.
Application 17/977,312 is a continuation of application No. 16/781,292, filed on Feb. 4, 2020, granted, now 11,487,263.
Claims priority of provisional application 62/965,488, filed on Jan. 24, 2020.
Prior Publication US 2023/0047268 A1, Feb. 16, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04W 72/04 (2023.01); G05B 19/042 (2006.01); H04W 4/80 (2018.01); H04W 76/10 (2018.01); H04L 61/50 (2022.01); H04L 101/622 (2022.01)
CPC G05B 19/0425 (2013.01) [H04L 61/50 (2022.05); H04W 4/80 (2018.02); H04W 76/10 (2018.02); G05B 2219/24003 (2013.01); G05B 2219/25186 (2013.01); H04L 2101/622 (2022.05)] 31 Claims
OG exemplary drawing
 
1. A wireless emergency stop system comprising:
a machine safety device connectable to a machine stop circuit for stopping operation of a machine when the machine stop circuit is activated, the machine safety device including a wireless communication interface;
a mobile device controller configured to control operation of the machine; and
a safety stop device including:
a wireless communication interface for wireless communication with the machine safety device; and
an emergency stop switch configured to, when activated, transmit an emergency stop signal to the machine safety device to trigger an emergency stop of the machine;
wherein the mobile device controller is configured to link with the safety stop device via short-range wireless communication; and
wherein the mobile device controller is configured to detect an identifier of the safety stop device and bind to the safety stop device after determining which machine the safety stop device is in communication with to provide emergency stop functionality, thereby allowing the mobile device controller to provide a high safety category emergency stop switch that can be used to control the machine with security for emergency stop functionality.