THERMODYNAMIC MODELING FOR ENCLOSURES
First Claim
1. A method for modeling an internal environmental behavior of an enclosure for use by a control system of an HVAC system installed in the enclosure, the method comprising:
- determining, by the control system, historical weather data corresponding to a location of the enclosure;
creating, by the control system, a thermodynamic model for the enclosure using the determined historical weather data corresponding to the location of the enclosure, wherein the thermodynamic model describes the thermodynamic behavior of the enclosure for use by the control system;
receiving, by the control system, weather forecast data corresponding to the location of the enclosure;
predicting, by the control system, using the created thermodynamic model and a thermodynamic behavior prediction engine, how the enclosure will thermally react to activity of the HVAC system when the enclosure is exposed to forecast weather indicated by the weather forecast data; and
controlling, by the control system, based on the created thermodynamic model for the enclosure, the HVAC system to adjust a temperature of the internal environment of the enclosure.
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Abstract
Modeling the behavior of an enclosure for use by a control system of an HVAC system is described. A model for the enclosure that describes the enclosure'"'"'s behavior for use by the control system is updated based on weather forecast data. The weather forecast data can include predictions more than 24 hours in the future, and can include predictions on temperature, humidity and/or dew point, solar output, precipitation. The model for the enclosure can also be updated based on additional information and data. The model for the enclosure can be updated based also on an enclosure model stored in a database, and/or enclosure information from a user. The model can be updated based on active testing of the enclosure which can be performed automatically or in response to user input. The testing can include heating and/or cooling the enclosure at times when the enclosure is not likely occupied.
49 Citations
20 Claims
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1. A method for modeling an internal environmental behavior of an enclosure for use by a control system of an HVAC system installed in the enclosure, the method comprising:
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determining, by the control system, historical weather data corresponding to a location of the enclosure; creating, by the control system, a thermodynamic model for the enclosure using the determined historical weather data corresponding to the location of the enclosure, wherein the thermodynamic model describes the thermodynamic behavior of the enclosure for use by the control system; receiving, by the control system, weather forecast data corresponding to the location of the enclosure; predicting, by the control system, using the created thermodynamic model and a thermodynamic behavior prediction engine, how the enclosure will thermally react to activity of the HVAC system when the enclosure is exposed to forecast weather indicated by the weather forecast data; and controlling, by the control system, based on the created thermodynamic model for the enclosure, the HVAC system to adjust a temperature of the internal environment of the enclosure. - View Dependent Claims (2, 3, 4, 5, 7, 8)
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6. The method for modeling the internal environmental behavior of the enclosure for use by the control system of the HVAC system installed in the enclosure of claim 6, further comprising:
generating, by the control system, the error metric based upon a comparison of an indoor temperature of the enclosure predicted using the updated model and at least one sensor reading within the enclosure indicative of a measured indoor temperature.
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9. A system for modeling the internal environmental behavior of an enclosure for use by a control system of an HVAC system installed in the enclosure, the system comprising:
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at least one processor; and a non-transitory storage medium having instructions stored thereon, the instructions executable by the at least one processor to; determine historical weather data corresponding to a location of the enclosure; create a thermodynamic model for the enclosure using the received historical weather data corresponding to the location of the enclosure, wherein the thermodynamic model describes behavior of the enclosure for use by the control system; receive weather forecast data corresponding to the location of the enclosure; predict, using the created model and a thermodynamic behavior prediction engine, how the enclosure will thermally react to activity of the HVAC system when the enclosure is exposed to forecast weather indicated by the weather forecast data; and control based on the created thermodynamic model for the enclosure, the HVAC system to adjust a temperature of the internal environment of the enclosure. - View Dependent Claims (10, 11, 12, 13, 14)
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15. A non-transitory processor-readable medium for modeling the internal environmental behavior of an enclosure for use by a control system of an HVAC system installed in the enclosure comprising processor-readable instructions configured to cause one or more processors to:
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determine historical weather data corresponding to a location of the enclosure; create a thermodynamic model for the enclosure using the received historical weather data corresponding to the location of the enclosure, wherein the thermodynamic model describes behavior of the enclosure for use by the control system; receive weather forecast data corresponding to the location of the enclosure; predict using the created thermodynamic model and a thermodynamic behavior prediction engine, how the enclosure will react to activity of the HVAC system when the enclosure is exposed to forecast weather indicated by the weather forecast data; and control based on the created thermodynamic model for the enclosure, the HVAC system to adjust a temperature of the internal environment of the enclosure. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification