A heating, ventilation, and air conditioning (HVAC) control device configured to collect event data from the one or more devices and to populate time entries in an occupancy history log with the event data. The event data includes a timestamp indicating a time when an event occurred, a set point temperature value for the HVAC system, and an occupancy status indicating whether a space is occupied. The device is further configured to identify blank time entries in the occupancy history log and to populate the blank time entries by forward filling the occupancy history log using event data from another time entry in the occupancy history log. The device is further configured to output the populated occupancy history log.

An information processing apparatus includes a controller. The controller is configured to execute operations including: identifying a user; acquiring attribute information for the user, the attribute information being stored in association with the user; estimating, from the attribute information, a power consumption amount for an environment preferred by the user; determining whether the power consumption amount is equal to or greater than a predetermined value; upon determining that the power consumption amount is equal to or greater than the predetermined value, guiding the user to a first space; and upon determining that the power consumption amount is less than the predetermined value, guiding the user to a second space, wherein a power consumption amount for the first space is greater than a power consumption amount for the second space.

A building system operates to receive building data from one or more building data sources associated with the building, wherein at least a portion of the building data is associated with control of the one or more environmental conditions of the building and generate, based on the building data, one or more data quality indicators for the building data received from the one or more building data sources, the one or more data quality indicators indicating quality levels of the building data. The building system operates to generate user interface data configured to cause a user device to display a user interface providing indications of the one or more data quality indicators.

A building system operates to receive building data from one or more building data sources associated with the building, wherein at least a portion of the building data is associated with control of the one or more environmental conditions of the building and generate, based on the building data, one or more data quality indicators for the building data received from the one or more building data sources, the one or more data quality indicators indicating quality levels of the building data. The building system operates to generate user interface data configured to cause a user device to display a user interface providing indications of the one or more data quality indicators.

In a commercial building, individual occupant thermal comfort is achieved with optimal cost and energy efficiency through the integration of a variety of local thermal comfort components into a communication network that employs emerging optimization principles to meet individual preferences for the thermal environment on a workstation basis while reducing building energy use and operating in accordance with any constraints on the energy grids that serve the buildings. These multiple objectives are met in part through a robust communication network that employs distributing processing to achieve preferred thermal conditions with optimal control of all components at subzone, zone, system, central plant, and energy grid levels.

In a commercial building, individual occupant thermal comfort is achieved with optimal cost and energy efficiency through the integration of a variety of local thermal comfort components into a communication network that employs emerging optimization principles to meet individual preferences for the thermal environment on a workstation basis while reducing building energy use and operating in accordance with any constraints on the energy grids that serve the buildings. These multiple objectives are met in part through a robust communication network that employs distributing processing to achieve preferred thermal conditions with optimal control of all components at subzone, zone, system, central plant, and energy grid levels.

An air-conditioning apparatus includes a compressor, an outdoor fan, and a controller configured to perform a fan intermittent operation for causing the outdoor fan to run and stop repeatedly after the compressor stops. The controller is configured to, in the fan intermittent operation, in a case where the outdoor fan is running and there is no snow accumulation on the outdoor fan, change a stop upper limit time for the outdoor fan depending on a running time of the outdoor fan in the fan intermittent operation and cause the outdoor fan to stop running after changing the stop upper limit time for the outdoor fan. The controller is configured to, in a case where a stop time of the outdoor fan exceeds the changed stop upper limit time, cause the outdoor fan to run.

An air-conditioning apparatus includes a compressor, an outdoor fan, and a controller configured to perform a fan intermittent operation for causing the outdoor fan to run and stop repeatedly after the compressor stops. The controller is configured to, in the fan intermittent operation, in a case where the outdoor fan is running and there is no snow accumulation on the outdoor fan, change a stop upper limit time for the outdoor fan depending on a running time of the outdoor fan in the fan intermittent operation and cause the outdoor fan to stop running after changing the stop upper limit time for the outdoor fan. The controller is configured to, in a case where a stop time of the outdoor fan exceeds the changed stop upper limit time, cause the outdoor fan to run.

A system for acquisition and storage of data relative to BACnet objects of a BACnet standard HVAC system having BACnet network, where BACnet objects each generate change data upon occurrence of a change in a value thereof and a controller receives and concatenates the change data of the plurality of BACnet objects into payloads encapsulated into system specific data packets conforming to the BACnet data packet standards and transmitted over the BACnet network. The system also has a data conversion unit receiving the system specific data packets, retrieving the change data therefrom and generating database write commands including the change data. The system also comprises a main data acquisition database in data communication with the data conversion unit and receiving the database write commands therefrom. The main data acquisition database stores the data relative to all data changes of the standard BACnet objects over time.

A system for acquisition and storage of data relative to BACnet objects of a BACnet standard HVAC system having BACnet network, where BACnet objects each generate change data upon occurrence of a change in a value thereof and a controller receives and concatenates the change data of the plurality of BACnet objects into payloads encapsulated into system specific data packets conforming to the BACnet data packet standards and transmitted over the BACnet network. The system also has a data conversion unit receiving the system specific data packets, retrieving the change data therefrom and generating database write commands including the change data. The system also comprises a main data acquisition database in data communication with the data conversion unit and receiving the database write commands therefrom. The main data acquisition database stores the data relative to all data changes of the standard BACnet objects over time.