Method and apparatus for predicting a fault condition
First Claim
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1. An apparatus for predicting a fault condition, comprising:
- a machine having a plurality of parameters being dependent upon machine performance;
a sensor connected to the machine and adapted to produce an electrical signal in response to one of the plurality of machine parameters;
means for producing a data trend of the parameter in response to the electrical signal;
means for calculating the duration and slope of the trend;
means for calculating the distance from the last data point of the trend to a warning level;
means for determining a severity index; and
means for predicting the time period in which the trend will exceed the warning level in response to the duration, slope, and distance, and modifying the use of the machine as a function of the severity index and the predicted time period.
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Abstract
An apparatus for predicting a fault condition for a machine is disclosed. The machine has a plurality of parameters being dependent upon machine performance. A sensor connected to the machine produces an electrical signal in response to one of the plurality of machine parameters. A computer produces a data trend of the parameter in response to the electrical signal, calculates the duration and slope of the trend, and predicts the time period in which the trend will exceed the warning level.
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16 Claims
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1. An apparatus for predicting a fault condition, comprising:
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a machine having a plurality of parameters being dependent upon machine performance; a sensor connected to the machine and adapted to produce an electrical signal in response to one of the plurality of machine parameters; means for producing a data trend of the parameter in response to the electrical signal; means for calculating the duration and slope of the trend; means for calculating the distance from the last data point of the trend to a warning level; means for determining a severity index; and means for predicting the time period in which the trend will exceed the warning level in response to the duration, slope, and distance, and modifying the use of the machine as a function of the severity index and the predicted time period. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A method for predicting a fault condition for a machine having a plurality of parameters being dependent upon machine performance, the method including the following steps:
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producing an electrical signal in response to one of the plurality of machine parameters; producing a data trend of the parameter in response to the electrical signal; calculating the duration and slope of the trend; calculating the distance from the last data point of the trend to a warning level; determining a severity index; predicting the time period in which the trend will exceed the warning level in response to the duration, slope, and distance; and modifying the use of the machine as a function of the severity index and the predicted time period. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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Specification