Multi-sense environmental monitoring device and method
First Claim
Patent Images
1. A monitoring device for monitoring substances, the monitoring device comprising:
- a plurality of sensors, each of at least two sensors of the plurality of 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 performing self-calibration by adjusting a gain of a sensor according to the relationship;
sensorGainnew=sensorGainold+0.1*[max(sensorReading1, sensorReading2)]/[min (sensorReading1, sensorReading2)]; 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.
1 Assignment
0 Petitions
Accused Products
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.
-
Citations
8 Claims
-
1. A monitoring device for monitoring substances, the monitoring device comprising:
-
a plurality of sensors, each of at least two sensors of the plurality of 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 performing self-calibration by adjusting a gain of a sensor according to the relationship;
sensorGainnew=sensorGainold+0.1*[max(sensorReading1, sensorReading2)]/[min (sensorReading1, sensorReading2)]; anda 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. A monitoring device for monitoring substances, the monitoring device comprising:
-
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, 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, and generate a calibration action responsive to at least two of the output signals deviating by a threshold amount, the calibration action comprising performing self-calibration, wherein the calibration action comprises self-calibration by adjusting a gain of a sensor according to the relationship;
sensorGainnew=sensorGainold+0.1*[max(sensorReading1, sensorReading2)]/[min (sensorReading1, sensorReading2)]. - View Dependent Claims (6, 7, 8)
-
Specification