THERMOSTAT WITH OCCUPANCY DETECTION BASED ON LOAD OF HVAC EQUIPMENT
First Claim
1. A thermostat for a building space, the thermostat comprising:
- a communications interface configured to engage in bidirectional communications with heating, ventilation, or air conditioning (HVAC) equipment and to receive an indication of a current heating or cooling load from the HVAC equipment; and
a processing circuit configured to;
determine an occupancy of the building space based on the indication of the current heating or cooling load received from the HVAC equipment; and
operate the HVAC equipment based on the determined occupancy of the building space.
3 Assignments
0 Petitions
Accused Products
Abstract
A thermostat for a building space. The thermostat includes a communications interface and a processing circuit. The communications interface is configured to engage in bidirectional communications with heating, ventilation, or air conditioning (HVAC) equipment and to receive an indication of a current heating or cooling load from the HVAC equipment. The processing circuit is configured to determine an occupancy of the building space based on the indication of the current heating or cooling load received from the HVAC equipment. The processing circuit is further configured to operate the HVAC equipment based on the determined occupancy of the building space.
29 Citations
20 Claims
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1. A thermostat for a building space, the thermostat comprising:
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a communications interface configured to engage in bidirectional communications with heating, ventilation, or air conditioning (HVAC) equipment and to receive an indication of a current heating or cooling load from the HVAC equipment; and a processing circuit configured to; determine an occupancy of the building space based on the indication of the current heating or cooling load received from the HVAC equipment; and operate the HVAC equipment based on the determined occupancy of the building space. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for operating a bidirectional thermostat, the method comprising:
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determining a time to setpoint for a building space; and displaying the time to setpoint on a user interface. - View Dependent Claims (11, 12, 13, 14)
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15. A thermostat for a building space, the thermostat comprising:
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a communications interface configured to engage in bidirectional communications with heating, ventilation, or air conditioning (HVAC) equipment and to receive an indication of a current heating or cooling load from the HVAC equipment; and a processing circuit configured to determine if a requested setpoint is achievable based on the load. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification