Thermostat with external interrupt
AssigneeTyco Fire & Security GmbH
InventorsSayan Chakraborty, Aaron D. Wagner
Life of this patent
Estimating the term…
Abstract
A HVAC system includes building equipment operable to affect a physical state of a space in the building and a controller coupled to the building equipment. The controller is configured to accept a plurality of binary inputs indicating one or more conditions of the space, provide, to the building equipment, a plurality of outputs configured to control the operation of the building equipment, configure a first binary input of a plurality of binary inputs as an interrupt, the interrupt configured to receive an interrupt signal, determine, based on the interrupt signal, a state of the interrupt, and deactivate the plurality of outputs so that no control signals are sent to the building equipment so long as the controller determines the interrupt is in an activated state.
Claims20
A heating, ventilation, or air conditioning (HVAC) system in a building, the HVAC system comprising:
- building equipment operable to affect a space in the building;
- a controller coupled to the building equipment via a system bus, the controller comprising a processing circuit comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to:
- receive an input signal via a binary input of the controller, the input signal based on one or more conditions of the space or the building equipment;
- generate a control signal to provide via an output of the controller to control the building equipment;
- determine the input signal is an interrupt signal based on a configuration of the binary input;
- and
- deactivate, in response to the interrupt signal, the output.
A method for operating a heating, ventilation, or air conditioning (HVAC) system in a building, the method comprising:
- providing a controller comprising a processing circuit comprising one or more memory devices coupled to one or more processors, the one or more memory devices configured to store instructions thereon that, when executed by the one or more processors, cause the one or more processors to:
- receive an input signal via a binary input of the controller, the input signal based on one or more conditions of a space in the building or building equipment operable to affect the space;
- generate a control signal to provide via an output of the controller to control the building equipment;
- determine the input signal is an interrupt signal based on a configuration of the binary input;
- and
- deactivate, in response to the interrupt signal, the output.
Dependencies are inferred from the claim text.