A heating, ventilation, and air conditioning (HVAC) system includes a network of wireless remote climate sensors to develop a complete heat map of an enclosed space. The remote climate sensor is configured to collect temperature and humidity data on a zone of the enclosed space. The HVAC system uses a network of these sensors to obtain data points across the enclosed space. The resulting heat map is used by the HVAC system to determine where to direct air in the enclosed space. By comparing the temperature and humidity at a specific remote climate sensor with the user's desired temperature and humidity, the HVAC system can decide whether to increase or decrease the air flow through a variable damper that is located near the remote climate sensor. The disclosed HVAC system provides even comfort to the user along with reduced energy consumption.

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.

An air-conditioning apparatus control device that controls an air-conditioning apparatus and includes an airflow side model construction unit configured to construct an airflow side model, an equipment side model construction unit configured to construct an equipment side model, a coupled optimization execution unit having an objective function calculation unit that calculates a value of an objective function for the air-conditioned space and a sensitivity derivation unit that derives sensitivity, which is change in the objective function when a control variable is changed, and configured to calculate an optimum solution by optimizing the objective function based on the airflow side model and the objective function based on the equipment side model, and a control target value determination unit configured to determine a control target value for the air-conditioning apparatus from the optimum solution.

The present invention discloses a multi-mode air supply terminal and method, and relates to the technical field of indoor ventilation. The multi-mode air supply terminal includes: a shell body (2) as well as a pore-plate air supply mechanism and an air-curtain air supply mechanism which are installed inside the shell body; the shell body is connected with one end of an air supply branch pipe), the air-curtain air supply mechanism is arranged around the pore-plate air supply mechanism, and an inner wall of the shell body (2) forms an empty cavity (6) with the pore-plate air supply mechanism and the air-curtain air supply mechanism; and the pore-plate air supply mechanism and the air-curtain air supply mechanism are respectively used for controlling opening/closing of a pore-plate air supply port and an air-curtain air supply port to form a plurality of air supply modes.

A hygiene management device for an entrance hall and the control method of the same are proposed. The hygiene management device may be installed in an entrance space, and when a person is detected at a preset position, distance between an air discharger and the person may be detected. When the detected distance is within a reference distance, air may be discharged. In addition, an air discharge condition suitable for a person may be preset, and when the person enters the entrance hall, the person's face may be detected, and air may be discharged to the person according to the air discharge condition preset for the person.