Thermostat with occupancy detection via proxy measurements of a proxy sensor
First Claim
1. A controller for controlling an environmental condition of a building space comprising:
- a proxy sensor configured to measure a proxy value indicating whether an occupant is within the building space;
an occupancy sensor configured to measure an occupancy value indicating whether the occupant is within the building space, wherein the occupancy sensor is different than the proxy sensor; and
a processing circuit configured to;
determine whether the occupant is within the building space based on the occupancy value of the occupancy sensor;
generate a proxy baseline based on a first proxy value measured via the proxy sensor, the proxy baseline,collects a plurality of proxy values measured via the proxy sensor, wherein the plurality of proxy values include the first proxy value; and
averages the plurality of proxy values, wherein averaging the plurality of proxy values comprises performing a rolling average on the plurality of proxy values;
compare a second proxy value measured via the proxy sensor and the proxy baseline; and
control one or more pieces of building equipment to control the environmental condition of the building space based on a comparison of the second proxy value and the proxy baseline.
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Accused Products
Abstract
A controller for controlling an environmental condition of a building space includes a proxy sensor configured to measure a proxy value indicating whether an occupant is within the building space and an occupancy sensor configured to measure an occupancy value. The controller includes a processing circuit configured to determine whether the occupant is within the building space based on the occupancy value of the occupancy sensor, generate a proxy parameter based on a first proxy value measured via the proxy sensor in response to a determination that the occupant is not within the building space based on the occupancy value of the occupancy sensor, determine whether the occupant is within the building based on a second proxy value measured via the proxy sensor and the generated proxy parameter, and control one or more pieces of building equipment to control the environmental condition of the building space.
131 Citations
18 Claims
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1. A controller for controlling an environmental condition of a building space comprising:
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a proxy sensor configured to measure a proxy value indicating whether an occupant is within the building space; an occupancy sensor configured to measure an occupancy value indicating whether the occupant is within the building space, wherein the occupancy sensor is different than the proxy sensor; and a processing circuit configured to; determine whether the occupant is within the building space based on the occupancy value of the occupancy sensor; generate a proxy baseline based on a first proxy value measured via the proxy sensor, the proxy baseline, collects a plurality of proxy values measured via the proxy sensor, wherein the plurality of proxy values include the first proxy value; and averages the plurality of proxy values, wherein averaging the plurality of proxy values comprises performing a rolling average on the plurality of proxy values; compare a second proxy value measured via the proxy sensor and the proxy baseline; and control one or more pieces of building equipment to control the environmental condition of the building space based on a comparison of the second proxy value and the proxy baseline. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A method for controlling an environmental condition of a building space, the method comprising:
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measuring, via a proxy sensor, a proxy value indicating whether an occupant is within the building space; measuring, via an occupancy sensor, an occupancy value indicating whether the occupant is within the building space, wherein the occupancy sensor is different than the proxy sensor; and determining, by a processing circuit, whether an occupant is within the building space based on the occupancy value of the occupancy sensor, wherein the occupancy sensor is configured to measure the occupancy value indicating whether the occupant is within the building space; generating, by the processing circuit, a proxy baseline based on a first proxy value measured via the proxy sensor, wherein the processing circuit collects a plurality of proxy values measured via the proxy sensor, wherein the plurality of proxy values include the first proxy value; and averages the plurality of proxy values, wherein averaging the plurality of proxy values comprises performing a rolling average on the plurality of proxy values; comparing, by the processing circuit, a second proxy value measured via the proxy sensor and the proxy baseline; and controlling, by the processing circuit, one or more pieces of building equipment to control the environmental condition of the building space based on a comparison of the second proxy value and the proxy baseline. - View Dependent Claims (16)
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17. A system for controlling an environmental condition of a building space, the system comprising:
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a proxy sensor configured to measure a proxy value indicating whether an occupant is within the building space, wherein the proxy sensor is a gas sensor configured to measure a concentration level of an occupant generated gas in the building space, the occupant generated gas generated by the occupant, wherein the concentration level of the occupant generated gas is at least one of a volatile organic compound (VOC) concentration level, an oxygen (O) concentration level, and a nitrogen dioxide (NO2) concentration level; an occupancy sensor configured to measure an occupancy value indicating whether the occupant is within the building space, wherein the occupancy sensor is different than the proxy sensor; and a processing circuit configured to; determine whether the occupant is within the building space based on the occupancy value of the occupancy sensor; generate a proxy baseline based on a first proxy value measured via the proxy, the proxy baseline, collect a plurality of proxy values measured via the proxy sensor, wherein the plurality of proxy values include the first proxy value; and average the plurality of proxy values, wherein averaging the plurality of proxy values comprises performing a rolling average on the plurality of proxy values; compare a second proxy value measured via the proxy sensor and the proxy baseline; and control one or more pieces of building equipment to control the environmental condition of the building space based on a comparison of the second proxy value and the proxy baseline. - View Dependent Claims (18)
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Specification