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US 11,906,415 B1Granted
Pollutant sensor device, system and method
AssigneeHalo Smart Solutions, Inc.
InventorsPaul Galburt, Kenneth Addy, Frank L. Jacovino
Life of this patent
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Abstract
Embodiments of a sensor device, method and system employ one or more particle detection sensors to collect particle measurement values in a plurality of particle bins collecting particles of different sizes, generate a histogram representing the particle measurement values and determine based on a comparison of the histogram with a profile histogram for a pollutant, a match quality indicative of whether the pollutant is present in the environment. In various embodiments, a location of a pollutant is also determined according to the determined match quality.
Claims28
A device, comprising;
- a particle detection sensor operable to detect a range of particle measurements in each of a plurality of bins, wherein a first bin of the plurality of bins measures a first particle measurement value for particles of a first size, and wherein a second bin of the plurality of bins measures a second particle measurement value for particles of a second size, wherein the second size is larger than the first size;
- a processor;
- a memory storing instructions that, when executed by the processor, cause the processor to:
- generate a first sample histogram comprising particle measurement values in each of the plurality of bins, wherein the first sample histogram represents an ambient environment being evaluated and comprises the first and second particle measurement values as received from the particle detection sensor at a first time;
- generate a second sample histogram comprising particle measurement values in each of the plurality of bins, wherein the second sample histogram comprises the first and second particle measurement values as received from the particle detection sensor at a second time different from the first time;
- determine a distance of a source of a pollutant from the device based upon the first and second sample histograms;
- determine, based on a comparison of the first sample histogram with a profile histogram, a match quality value for the presence of the pollutant in the environment;
- upon the match quality value meeting or exceeding a threshold match value, generate a detected event notification.
5 more elements
A system, comprising:
- a plurality of networked particle detection sensors, each of which is operable to detect a range of particle measurements in each of a plurality of bins, wherein a first bin of the plurality of bins for each of the plurality of particle detection sensors measures a first particle measurement value for particles of a first size, and wherein a second bin of the plurality of bins for each of the plurality of particle detection sensors measures a second particle measurement value for particles of a second size, wherein the second size is larger than the first size;
- a processor;
- a memory storing instructions that, when executed by the processor, cause the processor to:
- generate a series of first sample histograms comprising an array of particle measurement values in each of the plurality of bins for each of the plurality of particle detection sensors, wherein the series of first sample histograms represents an ambient environment being evaluated, wherein the array for each of the plurality of particle detection sensors comprises the first and second particle measurement values as received from each of the plurality of particle detection sensors;
- determine a distance of each of the plurality of particle detection sensors to a source of a pollutant within the environment based upon sensor measurement values consisting of the particle measurement values in each of the plurality of bins over a time span;
- determine, based on a comparison of the series of first sample histograms with a profile histogram, a match quality value for each of the plurality of particle detection sensors for the presence of the pollutant in the environment;
- and
- upon the match quality value for at least one of the plurality of particle detection sensors meeting or exceeding a threshold match value, generate a detected event notification.
5 more elements
A computer-implemented method, comprising:
- receiving, by a computing device, first and second particle measurement values as received from a particle detection sensor, wherein the particle detection sensor is operable to detect a range of particle measurements in each of a plurality of bins, wherein a first bin of the plurality of bins measures a first particle measurement value for particles of a first size, and wherein a second bin of the plurality of bins measures a second particle measurement value for particles of a second size, wherein the second size is larger than the first size, wherein the first and second particle measurement values of the first sample histogram are measured at a plurality of intervals over a time span;
- generate, by the computing device based on the received first and second particle measurement values, a first sample histogram comprising an array of particle measurement values in each of the plurality of bins, wherein the first sample histogram represents an ambient environment being evaluated;
- determine a distance of a source of the pollutant from the device based solely upon the first and second particle measurement values over the time span;
- determine, based on a comparison of the first sample histogram with a profile histogram, a match quality value for the presence of a pollutant in the environment;
- and
- upon the match quality value meeting or exceeding a threshold match value, generate a detected event notification.
3 more elements
Dependencies are inferred from the claim text.