Method and apparatus for determining machine maintenance due times
First Claim
1. A method of determining maintenance due times for a machine on the basis of the operating status, comprising the steps of:
- giving a score according to reserve time remaining until next maintenance due time to each component of the machine;
associating a point to be subtracted from a score of each the component of the machine, for every type of abnormal phenomenon that could occur while the machine is operating, and for associating a point to be added to the score of each the component of the machine for every type of maintenance that would be performed on the machine;
detecting abnormal phenomena that occurred while the machine is operating, and inputting information on maintenance that was performed on the machine;
subtracting a subtraction point associated with the detected abnormal phenomena from the score of the corresponding component of the machine, and for adding an addition point associated with maintenance type indicated by the maintenance information to the score of the corresponding component of the machine; and
determining that the maintenance due time for the component has been reached when value resulting from subtraction from or addition to the score for the component of the machine attains a prescribed value.
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Accused Products
Abstract
Maintenance due times of components of a machine are determined according to the status of user-performed in-house maintenance and according to the occurrence of abnormalities during machine operation. A subtraction point (20 points) associated with an abnormality (overheating) detected during machine operation is subtracted from the score (80 points) of a corresponding component (engine) in the machine. An addition point (50 points) associated with the type of maintenance (overhaul performed by in-house maintenance) indicated in maintenance information is added to the score (80 points). Thus, at the time where the value resulting from subtractions from and additions to the score for that component (engine) reaches a prescribed value (10 points) indicating maintenance due time, it is determined that the maintenance due time for that component (engine) has been reached.
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Citations
8 Claims
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1. A method of determining maintenance due times for a machine on the basis of the operating status, comprising the steps of:
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giving a score according to reserve time remaining until next maintenance due time to each component of the machine; associating a point to be subtracted from a score of each the component of the machine, for every type of abnormal phenomenon that could occur while the machine is operating, and for associating a point to be added to the score of each the component of the machine for every type of maintenance that would be performed on the machine; detecting abnormal phenomena that occurred while the machine is operating, and inputting information on maintenance that was performed on the machine; subtracting a subtraction point associated with the detected abnormal phenomena from the score of the corresponding component of the machine, and for adding an addition point associated with maintenance type indicated by the maintenance information to the score of the corresponding component of the machine; and determining that the maintenance due time for the component has been reached when value resulting from subtraction from or addition to the score for the component of the machine attains a prescribed value. - View Dependent Claims (2, 3, 4)
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5. A apparatus of determining maintenance due times for a machine on the basis of its operating status, comprising:
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first memory means for storing a score according to reserve time remaining until next maintenance due time for each component of the machine; second memory means for storing points to be subtracted from the score of each the component of the machine, the points to be subtracted being associated with each type of abnormal phenomenon that could occur while the machine is operating, and points to be added to the score of each the component of the machine, the points to be added being associated with each type of maintenance that would be performed on the machine; abnormality detection means for detecting abnormal phenomena that occurred while the machine is operating; input means for inputting information on maintenance that was performed on the machine; score computation means for subtracting a subtraction point associated with the detected abnormal phenomena from the score of the corresponding component of the machine, and for adding an addition point associated with maintenance type indicated by maintenance information to the score of the corresponding component of the machine; and determination means for determining that the maintenance due time for a component has been reached when value resulting from subtraction from or addition to the score for the component of the machine attains a prescribed value. - View Dependent Claims (6, 7, 8)
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Specification