According to embodiments of the invention, a system 200 and method 100 for identifying CO.sub.2 concentration in a building area using an imaging device 10 is disclosed. The disclosed method and system includes capturing the number of living beings present in a particular area of the building by the imaging device 10, identifying the active state of the living beings and categorizing the active state as per predefined criteria and identifying the CO.sub.2 concentration based on the size of the building area, total number of living beings present in the building area and the active state of the living beings at a given point of time.

The disclosed system comprises a primary air curtain system and one or more optional apparel and/or accessory air curtain subsystem components. The primary system and subsystem(s) are configured to create a directionally controlled air curtain effect that repulses, repels, redirects, neutralizes, and/or disperses airborne infectious pathogens, carcinogens, chemicals, and other contaminants away from the body of a user or a surface susceptible to foreign contamination within a protected enclosure.

An air pressure measuring ventilation system, comprising: at least one duct; at least one motorized exhaust fan; one or more ultrasonic sensors; one or more infrared spark detectors; and one or more air pressure sensors. The at least one motorized exhaust fan may draw air through the at least one duct. The one or more air pressure sensors may be placed on a side of the at least one duct such that an air pressure is measured as the air is drawn through the at least one duct, such that a plurality of air pressure measurements are generated. The one or more air pressure sensors may be substantially flush with an interior side of the at least one duct and do not obstruct the air as the air is drawn through the at least one duct.

Disclosed is an air conditioner. The air conditioner includes an outdoor unit. The air conditioner further includes an indoor unit located in a building and configured to distribute cool air to a space within the building. The air conditioner further includes an antenna unit configured to sense (i) movement of human bodies within the space or (ii) presence of human bodies located in the space and determine a number of human bodies based on the sensed presence, where the antenna unit includes a housing and a plurality of antenna arrays located on an outer surface of the housing.

An air conditioner acquires an arrival required amount of time that is an amount of time required for a user to arrive at a building, calculates a time constant from when air conditioning of a room of the building is started until a temperature of the room reaches a target in-progress temperature that is a temperature reached prior to reaching a target temperature, the target in-progress temperature being determined based on a setting temperature of the room, calculates, based on the time constant, an air conditioning required amount of time from when the air conditioning of the room is started until the temperature of the room reaches the target temperature, and starts an air-conditioning operation when the acquired arrival required amount of time is equal to or shorter than the air conditioning required amount of time.

Provided is an information processing method executed by a computer. The information processing method includes detecting a cough or a sneeze of a person who is in a predetermined space; acquiring an image of the predetermined space captured when the cough or the sneeze is detected; recognizing a state around a mouth of the person from the image; generating, based on the recognized state around the mouth of the person, a control signal for controlling at least one of a direction or a volume of air that is to be sent from an airflow generation apparatus that generates an airflow in the predetermined space; and outputting the generated control signal.

The air-conditioning-apparatus indoor unit includes a main body that has an air inlet and an air outlet that accommodates a heat exchanger and a fan, left-right deflectors that are arranged in the air outlet and are configured to change the direction of an air flow from the air outlet in a left-right direction, up-down deflectors that are arranged in the air outlet and are configured to change the direction of the air flow from the air outlet in an up-down direction, the infrared sensor disposed at one end in the left-right direction of the front surface of the main body, and a large air flow control plate, a small air flow control plate, and an upper air flow control plate that are arranged between the infrared sensor and one end of the left-right deflector close to the infrared sensor and that control the air flow from the air outlet.

In some embodiments, apparatuses and methods are provided herein useful to assess monitor, improve, and/or modify health and well-being as it relates to people associated with a habitable or other built environments or spaces therein. In some embodiments, an intervention assessment system and methods include one or more sensors for measuring aspects related to the built environment, a personal user device, and a control circuit configured to receive one or more measurements form the sensor(s), identify a problem with the built environment, and identify potential interventions based on the indicators associated with the problem. By one approach, a plurality of potential interventions may be ranked based on, for example, the ability to reduce the prevalence of the problem or indicator in the built environment, feasibility, cost, and timeliness. In some approaches, the system and method also select and may implement one or more interventions.

A programmable thermostat supports at least one attribute where each different attribute values may support different sets of thermostatic settings. The programmable thermostat may be programmed based on the different attribute values rather than on temperature set points that are traditionally mapped to programmed times. Each set may include settings for a plurality of controlled equipment including a heating/cooling system, fan, ventilator, humidifier, and/or de-humidifier. Each embodiment may support attribute values associated with an occupancy attribute (which is indicative whether or not people are occupying an environmental entity) and/or a scenario attribute (which flexibly maps different thermostatic settings to different scenario attribute values). Stored configuration data about the thermostatic settings may be organized as a tree structure, where the leaves correspond to the thermostatic settings. A programmable thermostat/ventilator controller may also instruct a ventilator system to run during an adjustable pre-occupancy purge time duration before an environmental entity is occupied.

Systems and methods of environmental parameter determination are provided. A system can include a data processing system to obtain sensor data, apply a data normalization operation to the sensor data to generate a normalized data set for storage in a database, apply at least one filter to the normalized data set to generate a filtered data set, obtain the filtered data set to generate a plurality of performance indices, generate a digital output that corresponds to the performance indices, and provide the digital output to a client computing device for display by the client computing device.