Method for monitoring lockout procedures

Patent metadata

Field	Value
Publication number	US-2018171663-A1
Application number	US-201815896179-A
Country	US
Kind code	A1
Filing date	Feb 14, 2018
Priority date	Nov 9, 2010
Publication date	Jun 21, 2018
Grant date	—

Abstract

In a method of monitoring lockout procedures, a first lockout device is secured with a first component in a lockout condition to block operation of the first component, and a corresponding first data signal is received, with the first data signal including at least a first identification code corresponding to the first lockout device. A second lockout device is secured with a second component in a lockout condition to block operation of the second component, and a corresponding second data signal is received, with the second data signal including at least a second identification code corresponding to the second lockout device. The first and second data signals are monitored to determine an order in which the first and second lockout devices have been locked out, which is compared with a predefined lockout procedure. An alert is provided if the order is inconsistent with the predefined lockout procedure.

First claim

What is claimed is:

1 . A method of monitoring lockout procedures for a multi-process arrangement having first and second components, the method comprising:
securing a first lockout device with the first component in a lockout condition to block operation of the first component; receiving a first data signal corresponding to the first lockout device being secured with the first component in the lockout condition, the first data signal including at least a first identification code corresponding to the first lockout device; securing a second lockout device with the second component in a lockout condition to block operation of the second component; receiving a second data signal corresponding to the second lockout device being secured with the second component in the lockout condition, the second data signal including at least a second identification code corresponding to the second lockout device; monitoring the first and second data signals to determine an order in which the first and second lockout devices have been locked out; and comparing the order in which the first and second lockout devices have been locked out with a predefined lockout procedure, and providing an alert if the order is inconsistent with the predefined lockout procedure.

2 . The method of claim 1 , further comprising delivering information corresponding to the first and second data signals to a central computer.

3 . The method of claim 1 , wherein the first and second data signals further include a condition code identifying a lockout condition of the first and second lockout devices.

4 . The method of claim 1 , wherein the first and second data signals are generated by the first and second lockout devices.

5 . The method of claim 1 , wherein securing the first and second lockout devices in the lockout conditions comprises securing first and second lock units to first and second lockout interfaces of the first and second lockout devices.

6 . The method of claim 5 , wherein the first and second data signals are generated by the first and second lock units.

7 . The method of claim 5 , further comprising receiving a third data signal corresponding to the first lockout device being secured with the first component in the lockout condition, the third data signal including at least a third identification code corresponding to the first lock unit, and receiving a fourth data signal corresponding to the second lockout device being secured with the second component in the lockout condition, the fourth data signal including at least a fourth identification code corresponding to the second lock unit.

8 . The method of claim 5 , wherein the first lock unit comprises a first padlock and the second lock unit comprises a second padlock.

9 . The method of claim 5 , wherein the third and fourth data signals are generated when the first and second lock units are placed in a locked condition.

10 . The method of claim 5 , wherein the first and second data signals are generated when the first and second lock units are secured to the first and second lockout interfaces.

11 . The method of claim 5 , further comprising identifying system users that locked out the first and second components based on the third and fourth identification codes.

12 . The method of claim 1 , wherein the first and second data signals are generated when the first and second lockout devices are moved to the lockout condition.

13 . The method of claim 1 , wherein the first and second data signals are generated by first and second RFID tags.

14 . The method of claim 1 , wherein the first and second data signals are received at a receiver proximate to the first and second components.

15 . The method of claim 14 , wherein the receiver comprises one of a smart phone and an RFID reading device.

16 . The method of claim 1 , wherein the first data signal is received at a first receiver proximate to the first component, and the second data signal is received at a second receiver proximate to the second component.

Assignees

• Master Lock Co

Inventors

• Ebner Timothy

Classifications

• G07C9/28

  the pass enabling tracking or indicating presence · CPC title

• E05B2047/0058

  by batteries · CPC title

• F16P3/08

  in connection with the locking of doors, covers, guards, or like members giving access to moving machine parts · CPC title

• G06K7/10

  by electromagnetic radiation, e.g. optical sensing; by corpuscular radiation · CPC title

• G06K7/10366

  the interrogation device being adapted for miscellaneous applications · CPC title