REMOTE MONITORING OF MACHINE ALARMS

• US 20110282630A1
• Filed: 05/12/2011
• Published: 11/17/2011
• Est. Priority Date: 05/14/2010
• Status: Active Grant

• Current Assignee: Joy Global Surface Mining Inc. (Mitsui & Company Limited)
• Original Assignee: Joy Global Surface Mining Inc. (Mitsui & Company Limited)
• Inventors: RIKKOLA, MICHAEL, DANIEL, KENNETH
• Granted Patent: US 9,971,346 B2
• Time in Patent Office: Days
• US Class Current: 702/184
• CPC Class Codes: G05B 23/02 Electric testing or monitoring
• CPC Class Codes: G05B 23/0232 based on qualitative trend analysis, e.g. system evolution
• CPC Class Codes: G06F 21/554 involving event detection and direct action
• CPC Class Codes: G06V 20/695 Preprocessing, e.g. image segmentation

Abstract

Methods for monitoring a machine are described. In one aspect, a method includes receiving information on a plurality of events associated with the machine, determining a severity value for at least one event of the plurality of events, the severity value based on at least one of a safety value, a hierarchy value, a time-to-repair value, and a cost-of-repair value, and outputting an alert includes the severity value if the severity value exceeds a predetermined threshold associated with the at least one event. Systems and machine-readable media are also described.

Claims

1. A method for monitoring a machine comprising:

receiving information on a plurality of events associated with the machine;

determining a severity value for at least one event of the plurality of events, the severity value based on at least one of a safety value, a hierarchy value, a time-to-repair value, and a cost-of-repair value; and

outputting an alert comprising the severity value if the severity value exceeds a predetermined threshold associated with the at least one event.

2. The method of claim 1, wherein the severity value is a sum of any combination of the safety value, the hierarchy value, the time-to-repair value, and the cost-of-repair value.

3. The method of claim 2, wherein the severity value is a sum of 3 times the safety value, 2 times the hierarchy value, the time-to-repair value, and the cost-to-repair value.

4. The method of claim 1, further comprising identifying an episode, wherein an episode is identified by a plurality of events exceeding a predetermined threshold within a predetermined period of time.

5. The method of claim 4, wherein the alert comprises information on the identified episode.

6. The method of claim 4, wherein each of the plurality of events exceeding the predetermined threshold within the predetermined period of time is identified as a fault.

7. The method of claim 6, wherein the episode is identified as beginning at the time the first fault is identified, and ending at the time the machine is determined to start in a normal mode.

8. The method of claim 6, wherein the fault associated with the greatest severity value is identified as the parent fault of the episode, and the remaining faults are identified as children faults to the parent fault of the episode.

9. A system for monitoring a machine comprising:

a memory comprising information on a plurality of events associated with the machine;

a processor configured to determine a severity value for at least one event of the plurality of events, the severity value based on at least one of a safety value, a hierarchy value, a time-to-repair value, and a cost-of-repair value; and

an output module configured to output an alert comprising the severity value if the severity value exceeds a predetermined threshold associated with the at least one event.

10. The system of claim 9, wherein the severity value is a sum of any combination of the safety value, the hierarchy value, the time-to-repair value, and the cost-of-repair value.

11. The system of claim 10, wherein the severity value is a sum of 3 times the safety value, 2 times the hierarchy value, the time-to-repair value, and the cost-to-repair value.

12. The system of claim 9, further comprising identifying an episode, wherein an episode is identified by a plurality of events exceeding a predetermined threshold within a predetermined period of time.

13. The system of claim 12, wherein the alert comprises information on the identified episode.

14. The system of claim 12, wherein each of the plurality of events exceeding the predetermined threshold within the predetermined period of time is identified as a fault.

15. The system of claim 14, wherein the episode is identified as beginning at the time the first fault is identified, and ending at the time the machine is determined to start in a normal mode.

16. The system of claim 14, wherein the fault associated with the greatest severity value is identified as the parent fault of the episode, and the remaining faults are identified as children faults to the parent fault of the episode.

17. A machine-readable storage medium comprising machine-readable instructions for causing a processor to execute a method for monitoring a machine comprising, comprising:

receiving information on a plurality of events associated with the machine;

determining a severity value for at least one event of the plurality of events, the severity value based on at least one of a safety value, a hierarchy value, a time-to-repair value, and a cost-of-repair value; and

outputting an alert comprising the severity value if the severity value exceeds a predetermined threshold associated with the at least one event.