A computer-implemented method for anomaly detection in a data processing system comprising a processor and a memory comprising instructions which are executed by the processor. The method includes receiving a plurality of real-time airflow patterns acquired by a plurality of airflow alerters, wherein each real-time airflow pattern corresponds to a different airflow alerter; comparing each real-time airflow pattern with a predetermined airflow pattern, wherein each real-time airflow pattern corresponds to a different predetermined airflow pattern; when there is any real-time airflow pattern different from the corresponding predetermined airflow pattern, identifying a group of airflow alerters among the plurality of airflow alerters, wherein a real-time airflow pattern of each airflow alerter in the group is different from the corresponding predetermined airflow pattern; and identifying a location of an anomaly based on the group of airflow alerters.

A ventilation system with: (i) a volumetric enclosure having an inlet and an outlet and for coupling to an interior of a building habitable by human occupants; (ii) a fan located within the volumetric enclosure and for drawing air exterior to the building and supplying the air to the interior of the building; (iii) a programmable control apparatus for enabling and disabling the fan in response to a plurality of parameters, at least some of the parameters relating to quality of air to me moved in response to the fan; and (iv) circuitry coupled between the inlet and the outlet for measuring a signal representative of a volume of air passing through the volumetric enclosure over a period of time.

A ventilation system with: (i) a volumetric enclosure having an inlet and an outlet and for coupling to an interior of a building habitable by human occupants; (ii) a fan located within the volumetric enclosure and for drawing air exterior to the building and supplying the air to the interior of the building; (iii) a programmable control apparatus for enabling and disabling the fan in response to a plurality of parameters, at least some of the parameters relating to quality of air to me moved in response to the fan; and (iv) circuitry coupled between the inlet and the outlet for measuring a signal representative of a volume of air passing through the volumetric enclosure over a period of time.

A method monitors an air-conditioner having a semi-conductor gas sensor, the method including: determining that a refrigerant leakage has occurred on condition that the detection value is equal to or greater than a first threshold when the fan is in operation; starting operation of the fan as a provisional operation if the detection value is equal to or greater than a second threshold when the fan is not in operation; stopping the provisional operation of the fan; determining that a refrigerant leakage has occurred on condition that the detection value is equal to or greater than a third threshold after stopping the provisional operation of the fan; and taking a predetermined action for outputting alarm information and/or limiting supply of refrigerant to the heat exchanger when a refrigerant leakage is determined to have occurred.

A method monitors an air-conditioner having a semi-conductor gas sensor, the method including: determining that a refrigerant leakage has occurred on condition that the detection value is equal to or greater than a first threshold when the fan is in operation; starting operation of the fan as a provisional operation if the detection value is equal to or greater than a second threshold when the fan is not in operation; stopping the provisional operation of the fan; determining that a refrigerant leakage has occurred on condition that the detection value is equal to or greater than a third threshold after stopping the provisional operation of the fan; and taking a predetermined action for outputting alarm information and/or limiting supply of refrigerant to the heat exchanger when a refrigerant leakage is determined to have occurred.

An environmental equipment control apparatus controls environmental equipment. The environmental equipment control apparatus includes a grasping unit that grasps physical-and-mental-state information about a physical and mental state of a user, a control unit that changes a control state of the environmental equipment in a case in which the physical-and-mental-state information satisfies a predetermined state condition, and a storage unit that stores correspondence information in which changes in the control state of the environmental equipment are associated with changes in the physical-and-mental-state information of the user grasped by the grasping unit in accordance with the changes in the control state of the environmental equipment.

An environmental equipment control apparatus controls environmental equipment. The environmental equipment control apparatus includes a grasping unit that grasps physical-and-mental-state information about a physical and mental state of a user, a control unit that changes a control state of the environmental equipment in a case in which the physical-and-mental-state information satisfies a predetermined state condition, and a storage unit that stores correspondence information in which changes in the control state of the environmental equipment are associated with changes in the physical-and-mental-state information of the user grasped by the grasping unit in accordance with the changes in the control state of the environmental equipment.

An air-conditioner indoor unit (10) is configured to be capable of changing the direction of an airflow that is blown out through a blow-out port (15). The air-conditioner indoor unit (10) includes a control unit (40) that switches between a normal mode and a wide mode. The control unit (40) switches to the wide mode when an air conditioning load is higher than a predetermined value and extends at least vertically a range that is to be reached by the airflow in an air-conditioning target space in the wide mode compared with the normal mode.

An air-conditioner indoor unit (10) is configured to be capable of changing the direction of an airflow that is blown out through a blow-out port (15). The air-conditioner indoor unit (10) includes a control unit (40) that switches between a normal mode and a wide mode. The control unit (40) switches to the wide mode when an air conditioning load is higher than a predetermined value and extends at least vertically a range that is to be reached by the airflow in an air-conditioning target space in the wide mode compared with the normal mode.

An environmental equipment control apparatus controls environmental equipment. The environmental equipment control apparatus includes a grasping unit that grasps physical-and-mental-state information about a physical and mental state of a user, and a control unit that changes a control state of the environmental equipment in a case in which the physical-and-mental-state information satisfies a predetermined state condition.