MULTI-SENSE ENVIRONMENTAL MONITORING DEVICE AND METHOD
First Claim
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1. A monitoring device for monitoring substances, the monitoring device comprising:
- a plurality of sensors, each of the at least two sensors being configured to detect a same substance separately from all other sensors of the monitoring device and to generate an output signal in response to a detection of the same substance;
a processing unit operably coupled to the at least two sensors, the processing unit being configured to;
receive each of the output signals from the at least two sensors, determine a detection signal for the same substance based on the output signals, andgenerate a calibration action responsive to at least two of the output signals deviating by a threshold amount, the calibration action comprising at least one of performing self-calibration and generating a calibration request; and
a display operably coupled to the processing unit, the display being configured to show a detection condition for the same substance in accordance with the detection signal.
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Abstract
An environmental monitoring device for detecting and warning users of unhealthy levels of a given substance is disclosed having more than one sensor for each substance to be detected. Each sensor for each substance detected may be positioned in more than one plane or surface on the device. The device may be capable of auto or self calibration. Methods for reading substance levels and auto calibrating are also disclosed.
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Citations
20 Claims
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1. A monitoring device for monitoring substances, the monitoring device comprising:
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a plurality of sensors, each of the at least two sensors being configured to detect a same substance separately from all other sensors of the monitoring device and to generate an output signal in response to a detection of the same substance; a processing unit operably coupled to the at least two sensors, the processing unit being configured to; receive each of the output signals from the at least two sensors, determine a detection signal for the same substance based on the output signals, and generate a calibration action responsive to at least two of the output signals deviating by a threshold amount, the calibration action comprising at least one of performing self-calibration and generating a calibration request; and a display operably coupled to the processing unit, the display being configured to show a detection condition for the same substance in accordance with the detection signal. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for monitoring a substance using a monitoring device operably coupled with a plurality of sensors, wherein each of the plurality of sensors is configured to detect the same substance, the method comprising the steps of, by a processor:
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detecting a concentration of the substance based on output signals from each of the at least two sensors comprising concentration information associated with detection of the same substance; determining a detection signal for said same substance based on the output signals; calculating a display reading of the substance, the display reading being determined based on an aggregate of the output signals; generating a calibration action responsive to the output signals deviating by a threshold amount, the calibration action comprising at least one of performing self-calibration and generating a calibration request; comparing the display reading to a threshold limit; and actuating an alarm in response to the display reading deviating from the threshold limit by a predetermined value. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A monitoring device for monitoring substances, the monitoring device comprising:
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at least two sensors configured to detect a same substance and to generate an output signal in response to a detection of the same substance; and a processing unit operably coupled to the at least two sensors, the processing unit being configured to; receive each of the output signals from the at least two sensors, determine a weight of each of the at least two sensors configured to indicate a reliability of each of the at least two sensors, and determine an aggregate substance concentration reading by aggregating the output signals from the at least two sensors biased toward output signals from sensors indicated as being more reliable based on the weights. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification