Method and System for Detection and Remediation of Sensor Degradation in a Monitoring Device
First Claim
1. A method for detection and remediation of sensor degradation in a monitoring device, the method comprising:
- defining or selecting a monitor signal;
setting at least one monitor signal range bounded by a first upper threshold and a first lower threshold;
selecting at least one measured sensor output signal from the monitoring device that is within the monitor signal range;
generating a predicted proxy sensor signal concurrently with the measured sensor output signal in real-time;
blending the predicted proxy sensor signal with the measured sensor output signal at an onset of a shut-off period or just prior to recovery from the shut-off period; and
using the predicted proxy sensor signal in place of the measured sensor output signal when the monitor signal crosses the upper threshold or the lower threshold during the shut-off period.
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Accused Products
Abstract
A method and system for detection and remediation of sensor degradation in a monitoring device is disclosed. The method comprises defining or selecting a monitor signal, and setting at least one monitor signal range bounded by one or more upper thresholds and one or more lower thresholds for detecting degradation and/or shut-off. At least one measured sensor output signal is selected from the monitoring device that is within the monitor signal range. A predicted proxy sensor signal is generated concurrently with the measured sensor output signal in real-time. The predicted proxy sensor signal is blended with the measured sensor output signal when shut-down is impending or close to being recovered from. The predicted proxy sensor signal is used in place of the measured sensor output signal when the monitor signal crosses an upper or lower shut-off threshold during a shut-off period. The measured sensor output signal can be used once again when the shut-off period ends. A ‘sensor degraded’ condition can be indicated when the monitor signal crosses an upper or lower degradation threshold.
17 Citations
20 Claims
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1. A method for detection and remediation of sensor degradation in a monitoring device, the method comprising:
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defining or selecting a monitor signal; setting at least one monitor signal range bounded by a first upper threshold and a first lower threshold; selecting at least one measured sensor output signal from the monitoring device that is within the monitor signal range; generating a predicted proxy sensor signal concurrently with the measured sensor output signal in real-time; blending the predicted proxy sensor signal with the measured sensor output signal at an onset of a shut-off period or just prior to recovery from the shut-off period; and using the predicted proxy sensor signal in place of the measured sensor output signal when the monitor signal crosses the upper threshold or the lower threshold during the shut-off period. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A system for detection and remediation of sensor degradation in a monitoring device, the system comprising:
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a threshold generator module; a degradation and shutdown detector/proxy weighting module in communication with the threshold generator module; a sensor output predictor module in communication with the degradation and shutdown detector/proxy weighting module; a signal history generator module in communication with the sensor output predictor module; and a sensor output phase-in/phase-out module in communication with the degradation and shutdown detector/proxy weighting module and the sensor output predictor module. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A computer readable medium having instructions stored thereon for a method for detection and remediation of sensor degradation in a monitoring device, the method comprising:
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defining or selecting a monitor signal; setting at least one monitor signal range bounded by an upper threshold and a lower threshold; generating a predicted proxy sensor signal concurrently with the monitor signal in real-time; blending the predicted proxy sensor signal with the monitor signal when a shut-off period is impending or close to being recovered from; and using the predicted proxy sensor signal in place of the monitor signal when the monitor signal crosses the upper threshold or the lower threshold during one or more sensor shut-off periods.
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Specification