Generating a reliability analysis by identifying casual relationships between events in an event-based manufacturing system
First Claim
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1. A method for analyzing reliability of a manufacturing system, said method comprising:
- receiving an event chronology having a plurality of chronologically ordered event records, said event chronology being associated with a manufacturing system, said manufacturing system including a plurality of machines operating in sequence, each of the plurality of machines operating in sequence being identified by a machine section value, each of the plurality of chronologically ordered event records having a machine section value associated therewith;
identifying an adverse event record in the received event chronology;
determining a relationship between the adverse event record associated with one of the plurality of machines and at least one previous event record in the event chronology, said at least one previous event record being associated with the one machine or another machine from the plurality of machines, said other machine operating previous to the one machine in the sequence, said determining including comparing the machine section value of the identified adverse event record and the machine section value of the previous event record; and
incrementing a value representative of a correlation between the identified adverse event record and the previous event record as a function of the determined relationship.
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Abstract
Analyzing an event chronology record to permit identification of periods of a production sequence that correspond to a high probability of failure. Systems and methods include receiving an event chronology for a particular machine in the production sequence and for a particular time interval. A reliability analysis system accesses process flow information to determine whether a particular event in the event chronology is related to a subsequent adverse event within a predefined event window.
33 Citations
33 Claims
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1. A method for analyzing reliability of a manufacturing system, said method comprising:
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receiving an event chronology having a plurality of chronologically ordered event records, said event chronology being associated with a manufacturing system, said manufacturing system including a plurality of machines operating in sequence, each of the plurality of machines operating in sequence being identified by a machine section value, each of the plurality of chronologically ordered event records having a machine section value associated therewith; identifying an adverse event record in the received event chronology; determining a relationship between the adverse event record associated with one of the plurality of machines and at least one previous event record in the event chronology, said at least one previous event record being associated with the one machine or another machine from the plurality of machines, said other machine operating previous to the one machine in the sequence, said determining including comparing the machine section value of the identified adverse event record and the machine section value of the previous event record; and incrementing a value representative of a correlation between the identified adverse event record and the previous event record as a function of the determined relationship. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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12. One or more computer storage media having computer-executable components for analyzing reliability of a manufacturing process, said components comprising:
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an interface component for receiving an event chronology having a plurality of chronologically ordered event records, said event chronology being associated with a manufacturing system, said manufacturing system including a plurality of machines operating in sequence, each of the plurality of machines operating in sequence being identified by a machine section value, each of the plurality of chronologically ordered event records having a machine section value associated therewith; a process flow component for identifying a causal relationship between the event records in the event chronology received by the interface component by; identifying an adverse event record in the event chronology, said identified adverse event record being associated with one of the plurality of machines in the sequence; and determining if the machine section value of the identified adverse event record and the machine section value of at least one previous event record in the event chronology are related, said at least one previous event record being associated with the one machine or another machine from the plurality of machines, said other machine operating previous to the one machine in the sequence; and a display component for displaying the identified causal relationship to a user. - View Dependent Claims (13, 14, 15, 16, 17, 18, 19, 20)
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21. A system for analyzing the reliability of a manufacturing process having one or more machine sections, said system comprising:
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an event chronology having a plurality of chronologically ordered event records, each of the plurality of chronologically ordered event records having a machine section value associated therewith, said event chronology being associated with a manufacturing system, said manufacturing system including a plurality of machines operating in sequence, each of the plurality of machines operating in sequence being identified by a machine section value; a memory area for storing process flow information identifying at least one relationship between machine section values; and a processor configured to execute computer-executable instructions for identifying a causal relationship between at least two of the event records in the event chronology, said at least two of the event records being associated with machines in sequence in the manufacturing system, said identifying including accessing the process flow information stored in the memory area and comparing the accessed process flow information with the machine section values corresponding to the machines associated with the at least two of the event records. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33)
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Specification