MULTI-SENSE PLATFORM FOR IAQ HAZARD CLASSIFICATION

    公开(公告)号:US20230152291A1

    公开(公告)日:2023-05-18

    申请号:US18055745

    申请日:2022-11-15

    CPC classification number: G01N33/0075

    Abstract: A multi-sense platform is provided and includes a first sensor, a second sensor and a controller disposed in signal communication with the first sensor and the second sensor. The controller is configured to determine a presence of a first type of gas based on readings of the first sensor and to distinguish between a first one of the first type of gas and a second one of the first type of gas based on readings of the second sensor.

    ENVIRONMENTAL ENCLOSURE FOR A TRANSPORT GAS SENSOR

    公开(公告)号:US20230094980A1

    公开(公告)日:2023-03-30

    申请号:US17949772

    申请日:2022-09-21

    Abstract: A refrigerant detection assembly operable to detect refrigerant mixed with air includes a housing having an internal cavity fluidly connected with an ambient atmosphere surrounding the housing via an opening. A subassembly mounted within the internal cavity includes an air chamber fluidly connected with the internal cavity, a non-dispersive infrared sensor operably coupled to the air chamber, a printed circuit board, and a heat conduction plate mechanically and thermally coupled to the printed circuit board. At least one insulator is arranged within the internal cavity at a position between a portion of the subassembly and the housing. A shell is connectable to the housing in overlapping arrangement with the opening. The shell has at least one shell opening formed therein such that a flow path extends from the shell opening, through the opening formed in the housing to the internal cavity, and into the air chamber.

    Fire Suppression System Remote Monitoring

    公开(公告)号:US20230083138A1

    公开(公告)日:2023-03-16

    申请号:US17989966

    申请日:2022-11-18

    Abstract: A fire suppression system has a plurality of tank units (40, 42, 44, 46) each having: a tank body having a first port and an interior for storing at least one of fire suppressant and driver gas; a discharge assembly mounted to the first port and comprising: a discharge valve (50, 52); and a first monitoring switch or sensor (230; 240). A first monitoring unit (100) is coupled to the first monitoring switch or sensor of each said tank unit and configured to communicate with a remote monitoring location. For each of the tank units there is: a second monitoring switch or sensor (260, 280, 290); and a second monitoring unit (340) coupled to said second monitoring switch or sensor and configured to communicate with the remote monitoring location.

    METHODS OF REDUCING THE OCCURANCE OF FALSE POSITIVES IN GAS DETECTORS

    公开(公告)号:US20230020905A1

    公开(公告)日:2023-01-19

    申请号:US17805174

    申请日:2022-06-02

    Abstract: A method of indicating the presence of a target gas in a gas volume comprising providing a gas sensing core, configured for detection of the target gas, and a condition sensor within the gas volume, providing a controller, allowing gas to fluidly interact with the gas sensing core, monitoring a target gas measurement output from the gas sensing core, monitoring a parameter output from the condition sensor, recording a parameter output minimum value, calculating a parameter difference, calculating a rate of change of the parameter with respect to time, and indicating the presence of a target gas is detected in the gas volume when the target gas measurement exceeds a target gas measurement threshold value and the parameter difference is less than a parameter difference threshold value.

    Semiconductor film and phototube light detector

    公开(公告)号:US11313718B2

    公开(公告)日:2022-04-26

    申请号:US16613324

    申请日:2018-05-25

    Abstract: A light detection system is provided for association with a light source. The light detection system includes a light detector and circuitry. The light detector includes semiconductor film and phototube devices and is disposed with at least one line-of-sight (LOS) to the light source. The circuitry is coupled to the light detector and the light detector and the circuitry are configured to cooperatively identify a presence and a characteristic of a light emission event at the light source.

    SYNCHRONIZED MESH AUDIO COMMUNICATIONS

    公开(公告)号:US20210153292A1

    公开(公告)日:2021-05-20

    申请号:US17096607

    申请日:2020-11-12

    Abstract: A communications system includes a root node; a plurality of nodes in communication with the root node, the plurality of nodes defining a mesh network; the root node configured to: determine a time delay to each node of the plurality of nodes; transmit audio data to the plurality of nodes, the plurality of nodes configured to produce audio corresponding to the audio data; transmit a delay code to the plurality of nodes, each of the plurality of nodes producing the audio corresponding to the audio data at a time corresponding to the delay code.

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