A method of and system for conserving power of a battery in a battery-powered electronic device capable of wireless communications are disclosed. The electronic device, which can be a digital video camera or other component of a monitoring system or an HVAC controller, an appliance, or another aspect of a smart home system, is wirelessly communicable with one or more hubs over a wireless local area network. The electronic device has at least a high power radio and a low power radio operating at different frequencies. Communications switch from the high power radio to the low power radio upon the occurrence of a trigger event such as battery charge dropping below a designated threshold. The electronic device may be part of a WLAN coupled to a WAN via the Internet and a cellular network.

A method of and system for conserving power of a battery in a battery-powered electronic device capable of wireless communications are disclosed. The electronic device, which can be a digital video camera or other component of a monitoring system or an HVAC controller, an appliance, or another aspect of a smart home system, is wirelessly communicable with one or more hubs over a wireless local area network. The electronic device has at least a high power radio and a low power radio operating at different frequencies. Communications switch from the high power radio to the low power radio upon the occurrence of a trigger event such as battery charge dropping below a designated threshold. The electronic device may be part of a WLAN coupled to a WAN via the Internet and a cellular network.

Occupancy data over time is received for each of several spaces within a building from occupancy sensors that are disposed within each of the spaces. An occupancy value is determined for each of at least some of the several spaces based on the received occupancy data, each occupancy value representative of a percent of time that the respective space was occupied over an identified period of time. The space that had a highest occupancy value over the identified period of time is identified. A utilization value is determined for each of the spaces, wherein the utilization value is representative of a ratio of the occupancy value of the respective space and the highest occupancy value. An operation of the building is changed based at least in part on the utilization value of at least one of the plurality of spaces.

An air conditioning control system includes a plurality of remote control terminals and a server. The plurality of remote control terminals each calculates a time required for a user of the remote control terminal to return to a building from outside the building, and transmits information indicating the time required to the server. The server calculates an estimated time when a user who returns to the building first among the plurality of users returns to the building on the basis of the time required, and transmits a command for changing air conditioning setting to an air conditioner in stages from a time when the estimated time is calculated to the estimated time calculated.

An air conditioning control system includes a plurality of remote control terminals and a server. The plurality of remote control terminals each calculates a time required for a user of the remote control terminal to return to a building from outside the building, and transmits information indicating the time required to the server. The server calculates an estimated time when a user who returns to the building first among the plurality of users returns to the building on the basis of the time required, and transmits a command for changing air conditioning setting to an air conditioner in stages from a time when the estimated time is calculated to the estimated time calculated.

A system includes multiple HVAC systems. After receiving a demand request, a multiple-system controller a first anticipated power consumption associated with operating a first HVAC system at a first temperature setpoint during a future period of time of the demand response request and a second anticipated power consumption associated with operating a second HVAC system at a second temperature setpoint during the future period of time. Based at least in part on the first and the second anticipated power consumptions, a staging schedule is determined that indicates when to operate the first and second HVAC systems.

A system includes multiple HVAC systems. After receiving a demand request, a multiple-system controller a first anticipated power consumption associated with operating a first HVAC system at a first temperature setpoint during a future period of time of the demand response request and a second anticipated power consumption associated with operating a second HVAC system at a second temperature setpoint during the future period of time. Based at least in part on the first and the second anticipated power consumptions, a staging schedule is determined that indicates when to operate the first and second HVAC systems.

An example dehumidifier system may include one or more of a processor, an input display unit, a temperature and humidity censor configured to acquire current temperature and relative humidity data, an analog-to-digital transducer configured to convert, the acquired current temperature and relative humidity data from analog to digital output, a psychrometric converter module executed by the processor to convert the relative humidity data into ratio/absolute humidity data, a digital-to-analog transducer configured to convert the ratio/absolute humidity data into an analog format, a hysteresis comparator unit configured to compare hysteresis setpoint data received from the input display unit with data received from the temperature and humidity censor, and a ratio/absolute humidity setpoint comparator unit configured to compare a ratio/absolute humidity setpoint data received from the input display unit with the converted ratio/absolute humidity data.

In an exemplary system embodiment, a mobile device is configured to receive and/or determine a first identifier of the first HVAC control and to automatically configure one or more first settings for the first HVAC control corresponding with the first identifier. The one or more first settings are stored within and retrievable directly from the memory of the mobile device. The mobile device is also configured to receive and/or determine a second identifier of the second HVAC control and to automatically configure one or more second settings for the second HVAC control corresponding with the second identifier. The one or more second settings are stored within and retrievable directly from the memory of the mobile device for wireless transmission to the second HVAC control for download to a memory of the second HVAC control for controlling at least one HVAC component according to the one or more second settings.

In an exemplary system embodiment, a mobile device is configured to receive and/or determine a first identifier of the first HVAC control and to automatically configure one or more first settings for the first HVAC control corresponding with the first identifier. The one or more first settings are stored within and retrievable directly from the memory of the mobile device. The mobile device is also configured to receive and/or determine a second identifier of the second HVAC control and to automatically configure one or more second settings for the second HVAC control corresponding with the second identifier. The one or more second settings are stored within and retrievable directly from the memory of the mobile device for wireless transmission to the second HVAC control for download to a memory of the second HVAC control for controlling at least one HVAC component according to the one or more second settings.