An air conditioner is disclosed. The air conditioner comprises a storage, and a processor for identifying a target space on the basis of first gas sensing data, moving the air conditioner to the target space, acquiring information about a gas type on the basis of second gas sensing data sensed within the target space and reference data stored in the storage, and performing an air conditioning operation on the basis of the information about the gas type, wherein the gas sensing data is sensed by a sensor comprising a plurality of sensing modules that react to different gases.

A system and method for evacuating a harmful gas from an enclosed structure. The operation of the system is triggered by the detection of the harmful gas. Once triggered, normal air circulation through the HVAC duct is stopped. One or more separate evacuation blowers are activated and these pull the air withing the structure out. Some version are housed in a pass-through evacuation module within an existing HVAC duct. Other versions are housed within a combined register/evacuation module.

A method and system is disclosed for determining multiple parameters of air at multiple locations. Based on the determined parameters air quality is determined by comparison of the determined air quality with standard parameters as prescribed by World Health Organization (WHO). Further, a database is maintained for keeping records and trends of the air quality in multiple varied locations at varying times. Based on the maintained air quality parameters the entities are issued health advisory related to their visit to the multiple locations.

A heating, ventilation, or air conditioning (HVAC) system for one or more building zones includes airside HVAC equipment that provide air to the one or more building zones and a controller. The controller obtains predictive models to predict values of a first control objective and a second control objective for the one or more building zones as a function of control decision variables for the airside HVAC equipment. The controller performs a Pareto optimization for a time period using the one or more predictive models to determine multiple sets of Pareto optimal values of the control decision variables and corresponding sets of Pareto optimal values of the first control objective and the second control objective for the time period. The controller operates the airside HVAC equipment to provide the air to the one or more building zones in accordance with a selected set of the Pareto optimal values.

A gas detection system includes a first sensor unit that outputs a voltage corresponding to a concentration of a specific gas, a storage tank capable of storing a sample gas or a purge gas to be supplied to the first sensor unit, and a control unit. The control unit detects a type and a concentration of a gas contained in the sample gas on the basis of a detection result of the first sensor unit. The control unit sets a collection period during which a gas in a predetermined space is collected into the storage tank as the sample gas or the purge gas and a supply period during which the sample gas or the purge gas is supplied to the first sensor unit such that the collection period and the supply period fall in different time slots.

Systems and methods of holistically controlling a heating, ventilation, air conditioning, and refrigeration (HVACR) system and a multi-contaminant air cleaner (MCAC) are disclosed. The method includes sensing, via at least one HVACR sensor, at least one comfort parameter; sensing, via at least one MCAC sensor, at least one air-quality parameter; determining, via a controller, minimum air changes of the HVACR system based on the at least one comfort parameter; and determining, via the controller, equivalent air changes of the MCAC and an indoor air quality (IAQ) score based on the at least one air-quality parameter. The method also includes controlling an operation of the HVACR system and controlling an operation of the MCAC based on the determined air changes to optimize an energy consumption.

The disclosure relates to an air conditioner and a control method thereof, the air conditioner including: a housing including an inlet and an outlet through which air is introduced and discharged; a fan driver configured to drive air introduced through the inlet to be discharged through the outlet; a filter configured to filter the introduced air; a sensor configured to detect a foreign material in air; a storage configured to store information; and a processor configured to control the storage to store information about mass concentration of the foreign material in air detected by the sensor, and calculate a remaining life of the filter based on the information stored in the storage. Thus, the air conditioner can identify proper time to replace the filter by calculating the remaining life of the filter.

A method for intelligently preventing and handling indoor air pollution is adapted to be implement in an indoor space. The method includes providing an outdoor gas detector to detect a polluted gas in an outdoor space and transmit an outdoor gas detection data; providing an indoor gas detector to detect a polluted gas in the indoor space and transmit an indoor gas detection data; and providing an indoor gas exchange system including a gas exchanger. The gas exchanger compares the outdoor gas detection data with the indoor detection data and controls the polluted gas in the indoor space to determine if the gas exchange function should be performed. Therefore, the indoor gas detection data of the polluted gas in the indoor space is decreased to a safety detection value and the polluted gas in the indoor space becomes a clean, safe, and breathable gas.

A method for intelligently preventing and handling indoor air pollution is adapted to be implemented in an indoor space and includes providing a cloud processing device to receive and intelligently compare an outdoor gas detection data, an indoor gas detection data, and device gas detection data with each other. Then, the cloud processing device remotely transmits a control signal to the communication relay station and further to an indoor gas exchange system, so that the indoor gas exchange system is capable of intelligently enabling the gas processing device and controlling the operation time of the gas processing device for exchanging a polluted gas in the indoor space with the outdoor gas. Moreover, the gas exchanger can perform purification for the polluted gas at the location of the gas exchanger, thereby allowing the polluted gas in the indoor space to be exchanged into a clean, safe, and breathable gas.

A method is disclosed that includes continuously obtaining air purity and floor particle data from one or more sensors and/or one or more cameras of a robotic device among a fleet of robotic devices; determining whether air impurities around the robotic device exceed an air purity threshold based on air purity feedback from the one or more sensors of the robotic device; based on the determination whether air impurities around the robotic device exceed the air purity threshold, modifying an air purification mode of the robotic device; determining whether floor particles around the robotic device exceed a floor particle threshold based on floor particle feedback from the one or more sensors of the robotic device; and based on the determination whether floor particles around the robotic device exceed the floor particle threshold, modifying a floor cleaning mode of the robotic device.