Model based diagnosis and repair for event logs
First Claim
1. A method for isolating a hardware or user error and for providing a suitable repair action in a software controlled apparatus using recorded events and a causality model, that relates at least one root cause to at least one root cause related pattern of the events, comprising:
- relating at least one of the root cause related patterns with probability factors to more than one root cause;
relating at least one repair action of the causality model that is related with probability factors to at least one of the root causes;
recording a series of events;
evaluating the series of events by comparing it with at least one of the root cause related patterns, thereby producing matched patterns;
determining a best match of the matched patterns;
isolating the root cause underlying the error by evaluating the probability factors; and
suggesting at least one repair action based on the root cause related patterns, the root causes, and the probability factors.
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Accused Products
Abstract
A system and appertaining method isolates a hardware or user error in a software controlled apparatus e.g., an NMR-apparatus. A diagnostic function is added to an event log that uses a causality model to analyze the event log. A series of events in the event log is evaluated by comparing the events with at least one of a number of root cause related patterns, and a best match of these patterns is used to assign a root cause for the error. Various repair actions may be associated based on a probabilistic model. Additional information may be utilized to modify or improve respective probabilities associated with causes and/or repair actions. This additional information may utilize other automated diagnostic information or may query users for additional information.
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Citations
14 Claims
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1. A method for isolating a hardware or user error and for providing a suitable repair action in a software controlled apparatus using recorded events and a causality model, that relates at least one root cause to at least one root cause related pattern of the events, comprising:
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relating at least one of the root cause related patterns with probability factors to more than one root cause; relating at least one repair action of the causality model that is related with probability factors to at least one of the root causes; recording a series of events; evaluating the series of events by comparing it with at least one of the root cause related patterns, thereby producing matched patterns; determining a best match of the matched patterns; isolating the root cause underlying the error by evaluating the probability factors; and suggesting at least one repair action based on the root cause related patterns, the root causes, and the probability factors. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A system for isolating a hardware or user error and for providing a suitable repair action in a software controlled apparatus, comprising:
a memory comprising; an event log into which events of the apparatus are recorded; a table comprising a list of possible root causes for various problems or states; a table comprising repair actions; and a diagnosis module configured to implement, utilizing a processor, a causality model relating at least one root cause from the table with probability factors to at least one root cause related pattern of events by producing matched root cause related patterns to a series of events, determining a best match of the matched patterns, isolating the root cause underlying the error by evaluating the probability factors, and suggesting at least one repair action via an output, based on the root cause related patterns, the root causes and the probability factors. - View Dependent Claims (12, 13, 14)
Specification