According to various aspects and embodiments, a system and method for controlling temperature in a control zone within a building is provided. According to some embodiments, the method includes receiving measured wind condition data external to the building and measured tracer gas concentration data in the control zone for a sample time interval and calculating an air flow characteristic for the sample time interval based on the measured tracer gas concentration data. The method further includes using the air flow characteristic in a temperature control loop for the control zone. According to some embodiments, the air flow characteristic is an air change rate (ACR) that may be used in determining a preheat time interval.

An active airflow inhibiting apparatus for an entranceway comprises a structure, an airflow sensor, and a controller. The structure comprises one or more air mover devices configured to be positioned adjacent an entranceway of a building and defining a passage therethrough for accessing the entranceway. The airflow sensor is configured to provide an output indicative of speed and direction of airflow through the entranceway or at the air mover devices. The controller is connected to the air mover devices and the airflow sensor. The controller is configured to receive the output of the airflow sensor and to control an output of the air mover devices based on the received output so as to generate a differential pressure across the air mover devices which inhibits airflow through the entranceway.

A ventilator (10) comprises a ventilator stator (12) for mounting to a structure and a ventilator rotor (14) for mounting and rotation with respect to the stator. One or more wind drivable elements (44) are mounted to the ventilator rotor. A motor (20) is provided for operation between the ventilator rotor and ventilator stator for selective motor-driven rotation of the ventilator rotor.

A ventilator (10) comprises a ventilator stator (12) for mounting to a structure and a ventilator rotor (14) for mounting and rotation with respect to the stator. One or more wind drivable elements (44) are mounted to the ventilator rotor. A motor (20) is provided for operation between the ventilator rotor and ventilator stator for selective motor-driven rotation of the ventilator rotor.

The present disclosure provides a heating, ventilation, and air conditioning (HVAC) system including interconnected artificial neural networks trained for respective subsystems that are required for building temperature control. The HVAC system includes: an air conditioning sensor units installed in or outside a building to detect environmental data; an HVAC device configured to supply thermal energy into an inner space of the building using input power; and a predictive controller configured to generate operational data based on the environmental data and control the HVAC device by adjusting the input power.

A ventilator having a ventilator stator for mounting to a structure and a ventilator rotor for mounting and rotation with respect to the stator. One or more wind-drivable elements are mounted to the ventilator. A motor is provided for operation between the ventilator rotor and ventilator stator for selective motor-driven rotation of the ventilation rotor.

A heating, ventilation, air conditioning, and refrigeration (HVACR) system includes an array of packaged units; and a controller to obtain an operating condition of the array of packaged units, derive the operating condition to construct an operating pattern, select one or more packaged units to be adjusted to increase efficiency of the array of packaged units based on the operating pattern, and to adjust operation of the one or more packaged units selected by the controller.

A method for controlling an air conditioner, an air conditioner and a computer-readable storage medium are provided. The method includes: obtaining at least two predicted control parameter combinations for a current cycle prediction of the air conditioner and obtaining a historical control parameter combination of the air conditioner from a previous cycle operation; determining a target control parameter combination for the air conditioner according to parameter similarities between each of the predicted control parameter combinations and the historical control parameter combination; and controlling the air conditioner to operate according to the parameter values in the target control parameter combination.

An active airflow inhibiting apparatus for an entranceway comprises: a structure positioned adjacent an entranceway of a building and defines a passage therethrough for accessing the entranceway. The structure defines at least one plenum chamber and first and second outlet slots fluidically coupled to the plenum chamber. A fan fluidically connected to the plenum chamber supplies an airflow to the plenum chamber in order to selectively form a jet of air from the first outlet slot in a first mode of operation and from the second outlet slot in a second mode of operation The first and second outlet slots are configured so that the respective jets of air are each directed towards a centre of the structure, with the jet of air from the first outlet slot being directed away from the entranceway and the jet of air from the second outlet slot being directed towards the entranceway.

An air conditioner may include: a motion detection sensor configured to detect a movement of an object; at least one processor; a memory comprising instructions configured to cause the at least one processor to: determine, based on the motion detection sensor detecting the object, an activity amount of the object via the motion detection sensor, determine, based on the activity amount of the object satisfying a predetermined first condition, whether a number of second predetermined time sections, in a first predetermined time section, in which the object is detected via the motion detection sensor satisfies a predetermined second condition, or whether the activity amount of the object detected via the motion detection sensor in the first predetermined time section satisfies a predetermined third condition, and determine, based on determining that the predetermined second condition or the predetermined third condition is satisfied, that the object exists.