US 12,078,373 B2
Systems and methods for adjusting mitigation thresholds
Stuart K. Morgan, West Chester, OH (US); Hung M. Pham, Dayton, OH (US); and Brian R. Butler, Centerville, OH (US)
Assigned to Copeland LP, Sidney, OH (US)
Appl. No. 17/048,946
Filed by Copeland LP, Sidney, OH (US)
PCT Filed Apr. 19, 2019, PCT No. PCT/US2019/028402
§ 371(c)(1), (2) Date Oct. 19, 2020,
PCT Pub. No. WO2019/204788, PCT Pub. Date Oct. 24, 2019.
Claims priority of provisional application 62/660,373, filed on Apr. 20, 2018.
Claims priority of provisional application 62/660,364, filed on Apr. 20, 2018.
Prior Publication US 2021/0239348 A1, Aug. 5, 2021
Int. Cl. F24F 11/64 (2018.01); F24F 11/58 (2018.01); F24F 110/10 (2018.01); F24F 110/20 (2018.01); F24F 110/66 (2018.01); F24F 110/70 (2018.01)
CPC F24F 11/64 (2018.01) [F24F 11/58 (2018.01); F24F 2110/10 (2018.01); F24F 2110/20 (2018.01); F24F 2110/66 (2018.01); F24F 2110/70 (2018.01)] 20 Claims
OG exemplary drawing
 
1. An indoor air quality (IAQ) system for a building, comprising:
an IAQ sensor that is located within the building and that is configured to measure an IAQ parameter, the IAQ parameter being one of:
a relative humidity (RH) of air;
an amount of particulate of at least a predetermined size present in air;
an amount of volatile organic compounds (VOCs) present in air; and
an amount of carbon dioxide present in air;
a mitigation module configured to:
selectively turn on a mitigation device based on a comparison of the IAQ parameter with a first threshold; and
selectively turn off the mitigation device based on a comparison of the IAQ parameter with a second threshold;
a thresholds module configured to:
set the first and second thresholds to predetermined default values; and
selectively adjust at least one of the first and second thresholds,
wherein the mitigation module is configured to maintain the mitigation device off throughout a predetermined period; and
a baseline module configured to determine a baseline value of the IAQ parameter for the predetermined period,
wherein the thresholds module is configured to selectively adjust at least one of the first and second thresholds based on the baseline value,
wherein the thresholds module is configured to increase the first threshold when the baseline value is greater than the first threshold, and
wherein the thresholds module is configured to increase the first threshold to a predetermined amount greater than the baseline value when the baseline value is greater than the first threshold.