An HVAC monitoring system that tests for an abnormal environmental condition, wherein the abnormal condition results in effectuating a selected response from an HVAC building system, the HVAC monitoring system utilizing an existing sensor for detecting the gas abnormal condition, wherein a first event marker signal is generated from the existing sensor detecting the abnormal condition. Further included is an audio sensor, a wireless transmitter, a wireless receiver, programable control circuitry, a switching transistor, a relay, and a power supply for all the previous elements, wherein these components utilize the first event marker signal and through a series of subsequent signals to result in the relay being operative to be in an activated operational state upon being energized by the switching transistor to operationally effectuate the selected response from the HVAC building system.

An air-conditioning system includes: an air conditioner including a refrigerant circuit formed by connecting an outdoor unit and a plurality of indoor units together, the air conditioner being configured to condition air in a plurality of indoor spaces; at least one countermeasure device provided in correspondence with at least one of the plurality of indoor spaces and configured to operate during leakage of a refrigerant; a plurality of detectors configured to detect a concentration of the refrigerant, at least one of the detectors being provided in each of the plurality of indoor spaces; and a control unit configured to operate all of the at least one countermeasure device if at least one of the concentrations of the refrigerant respectively detected by the plurality of detectors exceeds a predetermined value.

The present invention relates to an air quality monitoring and controlling system and method for enclosed spaces, which provides an innovative closed loop (i.e., inline real time feedback) air management process, utilizing learning and prediction capabilities to provide with effective air purification and reliable alerting when required.

An environmental control system for a building, the system including a vent. The vent includes one or more louvers configured to change position between an open position and a closed position to permit air from the air duct to enter a zone of the building or stop the air from entering the zone and a vent circuit configured to operate the one or more louvers based on one or more control commands. The system includes a controller device including a processing circuit configured to receive a selection of an operating profile from a plurality of predefined operating profiles for the vent, each of the plurality of predefined operating profiles indicating an intended use of the zone, determine, based on the operating profile, the one or more control commands, and cause the vent circuit to operate the one or more louvers based on the one or more control commands.

A greenhouse-linked air conditioning system includes a first greenhouse through which sunlight is transmitted and in which plants are grown, a second greenhouse through which sunlight is not transmitted and in which plants are grown, an indoor space excluding the first and second greenhouses in a building, a sunlight panel formed outside the first greenhouse and generating power using the sunlight, an auxiliary light source connected to the sunlight panel to provide light to the second greenhouse, and an air conditioning unit configured to connect the first and second greenhouses and the indoor space and selectively exchange air, humidity, and energy between the first and second greenhouses and the indoor space.

A refrigerant leak sensor includes: a first refrigerant sensor element configured to, when powered: measure a first amount of the refrigerant present in air; and generate a first output based on the first amount; a second refrigerant sensor element configured to, when powered: measure a second amount of the refrigerant present in air; and generate a second output based on the second amount; a first selection module configured to: during a first period, apply power the first refrigerant sensor element and not apply power to the second refrigerant sensor element; and during a second period after the first period, apply power to the second refrigerant sensor element and not apply power to the first refrigerant sensor element.

A central controller for an intelligent environmental air management system includes at least one processor and memory storing instructions executable by the at least one processor. The instructions, when executed, cause the central controller to detect and communicate with an air hazard sensor, an environmental condition monitor, and an air hazard mitigation device of the intelligent environmental air management system.

An indoor air quality control method using an intelligent air cleaner is disclosed. An indoor air quality control method using an intelligent air cleaner according to an embodiment of the present invention classifies dust concentration data received from the air cleaner according to predetermined criteria and performs dust concentration pattern analysis. Particularly, dust concentration patterns for respective time periods are analyzed to control the air cleaning intensity of the air cleaner in advance of a predicted time, thereby facilitating efficient indoor air quality management. The intelligent air cleaner and the indoor air quality control method using the same of the present invention can be associated with artificial intelligence modules, devices related with the 5G service, and the like.

A total logging system configured to promptly and properly identify the cause of trouble and confirm countermeasures by comprehensively recording and accumulating an operator, a state of operations, and a work environment and tracing a series of operations together with recorded videos. The system includes: an image capturing device (ICD) configured to capture images of the state of operations; an information exchanging device (IED) configured to communicate information between a tag and a reader; several types of sensors configured to monitor the internal environment of a sterile working device and the operating state of an inward/outward conveying mechanism and other mechanisms; and an information recording and accumulating device (IRAD). The IRAD the operator according to information received from the IED and records details of operations performed by the operator using machines, appliances, treatment object articles and other items. The IRAD additionally records information regarding any or no change in the internal environment of the sterile working device and the operating state of the inward/outward conveying mechanism and other mechanisms according to information received from the sensors. The recorded information is provided with an index by corresponding to a video in chronological order to be recorded and accumulated.

An air-conditioning system includes: an air conditioner including an outdoor unit and a plurality of indoor units each provided in a corresponding one of a plurality of indoor spaces and each including a first control unit; and a second control unit capable of communicating with the first control units. Each first control unit is capable of communicating with a countermeasure device if the countermeasure device is installed in correspondence with one of the indoor spaces where the first control unit is located. The second control unit has a first function of prohibiting operation of the air conditioner if a first condition where communication between the first control unit and the countermeasure device is not established in any of the indoor units is satisfied.