A heating, ventilation, and air conditioning (HVAC) control device is configured to record a plurality of actual occupancy statuses, to determine a plurality of corresponding predicted occupancy statuses, and to compare the plurality of predicted occupancy statuses to the plurality of actual occupancy statuses. The device is further configured to identify conflicting occupancy statuses based on the comparison. A conflicting occupancy status indicates a difference between an actual occupancy status and a corresponding predicted occupancy status. The device is further configured to identify timestamps corresponding with the conflicting occupancy statuses, to identify historical occupancy statuses corresponding with the identified timestamps, and to update the conflicting occupancy statuses in the predicted occupancy schedule with the historical occupancy statuses.

An all-inclusive fluid flow device that can variably magnify differential pressure, measure, and control a flow of a fluid is described. Various procedures, including measuring, controlling, balancing, or calibration procedures can leverage a variably magnified differential pressure measurement. Differential pressure measurements can be measured across the fluid flow device such that a first pressure measurement is taken upstream of the fluid flow device while a second pressure measurement is taken downstream of the fluid flow device. Moreover, one or more of the various pressure measurements, and in particular the downstream pressure measurement, can be performed at stagnation zone where the flow has stagnated. Such can provide significant magnification and/or turndown capabilities and the magnification can vary based on a damper position and/or apertures dimensions.

An air conditioner and a method for controlling air conditioner communication are disclosed. The air conditioner includes an indoor unit, an outdoor unit, and a temperature protector. The indoor unit includes an indoor control device and an indoor communication device. The outdoor unit includes an outdoor control device and an outdoor communication device. The temperature protector includes a temperature control device and a temperature control communication device. The temperature control device is configured to output a temperature control setting parameters. The temperature control communication device is coupled with the temperature control device. The temperature control communication device is configured to receive the temperature control setting parameters, generate a fifth high-frequency signal carrying the temperature control setting parameters based on the temperature control setting parameters, and load the fifth high-frequency signal to the power communication line, so as to output the temperature control setting parameters.

A method of controlling signal transmission in a building control system including measuring a number of signal values associated with an environmental variable using a sensor of a wireless device, dynamically determining, by the wireless device, a noise threshold based on the number of signal values, combining a first signal value and a second signal value of the number of signal values using a mathematical relationship to determine a result associated with the first signal value and the second signal value, and periodically transmitting the first signal value from the wireless measurement device to a controller in response to the result exceeding the noise threshold.

An appliance hub for use in an upper portion of an enclosure can include a substrate configured to be positioned in an upper portion of an enclosure. The appliance hub can include a climate control apparatus mounted on the substrate and the climate control apparatus can be configured to regulate a temperature within the enclosure. The appliance hub can include one or more lighting elements configured to provide light within the enclosure, a plurality of fluid lines connected to the substrate and configured to provide fluid service and return to the climate control apparatus, and/or a plurality of electrical connections connected to the substrate and configured to provide electrical power and/or data to at least one of the climate control apparatus and the one or more lighting elements.

Embodiments of the application disclose a temperature control method, system and a temperature controller. The method includes: obtaining a target temperature value set by a user; obtaining a current energy-saving level, the current energy-saving level being used to limit an adjustment speed at which a HVAC system controls a temperature change; determining a target difference between indoor and outdoor temperatures based on a current indoor temperature value and a current outdoor temperature value; determining a target adjustment speed corresponding to the target difference between indoor and outdoor temperatures; determining a target operating mode based on a relationship between the current energy-saving level and the target adjustment speed; and controlling the HVAC system to perform a temperature adjustment operation in the target operating mode. The method can improve the user's comfort experience and effectively reduce energy consumption.

A system that allows a contractor to remotely monitor and/or interact with its customers' building control systems, such as heating, ventilating and air conditioning (HVAC) systems, and analyze information obtained from the building control systems over time. Such a system may help the contractor monitor and diagnosis customer building control systems, setup service calls, achieve better customer relations, create more effective marketing opportunities, as well as other functions. In some cases, the disclosed system may include a controller that analyzes data from HVAC systems, determines a thermal model of a space environmentally controlled by an HVAC system, and provides an energy audit of the space that is environmentally controlled by the HVAC system. The controller may output a result of the energy audit to a user.

A load control system may be configured using a design (e.g., graphical user interface) software. The design software may display icons representing fixtures (e.g., lighting fixtures) and devices (e.g., load control devices, controls, sensors, etc.) on a canvas. The design software may define relationships between the fixtures and/or devices. The design software may provide load control templates defining collections of devices, for example, for particular rooms in a building. The templates may be quickly placed on the canvas to define a particular area. Fixtures may be added to a template on the canvas and the design software may automatically create relationships between the fixtures and the devices (e.g., load control devices) of the template. In addition, the design software may automatically create relationships between the devices of the template (e.g., between controls and load control devices).

A control system has an air conditioner that communicates with a file server via a network. The file server includes a lifestyle log in which information associating lifestyle information indicating a lifestyle with a control method of the air conditioner is accumulated. A first control-operation functional unit operates the air conditioner based on a first control request acquired from a first device. A second control-operation functional unit selects a control method from the lifestyle log based on a second control request acquired from a second device with higher functionality than the first device, and operates the air conditioner using the selected control method.

The present disclosure presents techniques for improving operational efficiency of climate control systems. A climate control system may include climate control equipment, a sensor that measures temperature in a building, and a control system that controls operation of the equipment using a first temperature schedule, which associates each time step with a temperature setpoint, when the building is occupied. When not occupied, the control system determines an expected return time based on historical occupancy data associated with the building, determines the temperature setpoint associated with the expected return time, determines candidate schedules each expected to result in the inside air temperature meeting the temperature setpoint, determines efficiency metrics each associated with one of the candidates based on historical performance data resulting from previous operation of the climate control system, and controls operation of the equipment based on a second temperature schedule selected from the candidates based on associated efficiency metrics.