Method and apparatus for identifying erroneous sensor outputs
First Claim
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1. A method for identifying erroneous sensor outputs, the method comprising:
- with a processing device, obtaining a first plurality of samples from a sensor over a period of time;
determining, with the processing device, a first mean of the first plurality of samples;
with the processing device, obtaining a first additional sample from the sensor at a time subsequent to times that the first plurality of samples were obtained;
determining, with the processing device, a divergence of the first additional sample from the first mean;
identifying, with the processing device, the first additional sample as erroneous when the divergence is greater than a threshold;
determining a second mean of a second plurality of samples including the first additional sample when the first additional sample has been identified as erroneous; and
controlling a mechanism based on only non-erroneous samples obtained from the sensor.
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Abstract
A method for identifying erroneous sensor outputs is provided. The method includes obtaining a first plurality of samples from a sensor over a period of time. A mean of the plurality of samples is determined. A first additional sample from the sensor at a time subsequent to times that the first plurality of samples were obtained is also received. A divergence of the first additional sample from the mean is determined. The first additional sample is identified as erroneous when the divergence is greater than a threshold.
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Citations
20 Claims
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1. A method for identifying erroneous sensor outputs, the method comprising:
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with a processing device, obtaining a first plurality of samples from a sensor over a period of time; determining, with the processing device, a first mean of the first plurality of samples; with the processing device, obtaining a first additional sample from the sensor at a time subsequent to times that the first plurality of samples were obtained; determining, with the processing device, a divergence of the first additional sample from the first mean; identifying, with the processing device, the first additional sample as erroneous when the divergence is greater than a threshold; determining a second mean of a second plurality of samples including the first additional sample when the first additional sample has been identified as erroneous; and controlling a mechanism based on only non-erroneous samples obtained from the sensor. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A system comprising:
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a sensor; and a processing device communicatively coupled to the sensor and configured to; determine a first mean of a first plurality of samples, each of the samples of the first plurality of samples comprising data obtained by the sensor over a period of time; determine a divergence between a first additional sample obtained by the sensor at a time subsequent to the period of time and the first mean; identify the first sample as erroneous when the divergence is greater than a threshold; determine a second mean of a second plurality of samples including the first additional sample when the first additional sample has been identified as erroneous; and control a mechanism based on only non-erroneous samples obtained from the sensor. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15)
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16. A non-transitory processor-readable medium comprising instructions, that when executed by a processor, cause the processor to:
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for a first plurality of samples obtained from a sensor, determine a first mean of a portion of the first plurality of samples using a sliding window; for a new sample obtained from the sensor, determine a divergence between the new sample and the first mean of the samples within the sliding window; identify the new sample as erroneous when the divergence is greater than a threshold; determine a second mean of a second plurality of samples including the new sample when the new sample has been identified as erroneous; and control a mechanism based on only non-erroneous samples obtained from the sensor. - View Dependent Claims (17, 18, 19, 20)
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Specification