Abstract:
A user-friendly, network-connected learning thermostat is described. The thermostat is made up of (1) a wall-mountable backplate that includes a low-power consuming microcontroller used for activities such as polling sensors and switching on and off the HVAC functions, and (2) separable head unit that includes a higher-power consuming microprocessor, color LCD backlit display, user input devices, and wireless communications modules. The thermostat also includes a rechargeable battery and power-stealing circuitry adapted to harvest power from HVAC triggering circuits. By maintaining the microprocessor in a “sleep” state often compared to the lower-power microcontroller, high-power consuming activities, such as learning computations, wireless network communications and interfacing with a user, can be temporarily performed by the microprocessor even though the activities use energy at a greater rate than is available from the power stealing circuitry.
Abstract:
Various utility portals that enable utility companies to manage demand-response events are disclosed. The disclosed utility portals include several different options for enabling utility companies to communicate information to and received information from an energy management system. The energy management system can host the portal and can carry out a demand response event via intelligent, network-connected devices based on information provided by the utility company.
Abstract:
Devices and methods are provided for generating and/or displaying a graphical user interface used to control an energy-consuming system, such as a heating, ventilation, or air conditioning (HVAC) system. Such an electronic device may include, for example, a processor that generates the graphical user interface and an electronic display that displays the graphical user interface. The graphical user interface may include a menu formed from discrete display elements that, owing to the way in which the discrete display elements are shifted into and out of view on the screen, appear to be spatially related to one another.
Abstract:
A thermostat includes at least a housing, a user interface, a memory, an environmental sensor, and a processing system. The processing system may be configured to operate in a wake state and a sleep state by determining wake-up conditions upon which the processor is to enter into the wake state from the sleep state that includes a threshold value associated with an environmental condition sensed by the environmental sensor, causing the wake-up conditions to be stored in the memory, operating in the sleep state during a time interval subsequent to causing the wake-up conditions to be stored in the memory, determining whether at least one of the wake-up conditions has been met, and operating in the wake state upon a determination that the at least one wake-up condition has been met.