Self-testing fire sensing device for confirming a fire

    公开(公告)号:US11900791B2

    公开(公告)日:2024-02-13

    申请号:US17729434

    申请日:2022-04-26

    摘要: Devices, methods, and systems for a self-testing fire sensing device are described herein. One device includes a fan, an optical scatter chamber configured to measure a quantity of particles therein, and a controller configured to compare the quantity to a baseline quantity and transmit a command to a fan responsive to the quantity being greater than the baseline quantity, wherein the fan is configured to activate for a particular period of time to remove particles from the optical scatter chamber responsive to receiving the command, wherein the optical scatter chamber is configured to measure the quantity of particles therein after the particular period of time, and wherein the controller is configured to compare the quantity of particles after the particular period of time to the baseline quantity and report a confirmed fire responsive to the quantity of particles after the particular period of time being greater than the baseline quantity.

    Fire system with current response calibration

    公开(公告)号:US11875667B2

    公开(公告)日:2024-01-16

    申请号:US17712712

    申请日:2022-04-04

    IPC分类号: G08B29/20 G08B17/00

    CPC分类号: G08B29/20 G08B17/00

    摘要: A fire system for a building is provided, the fire system including a fire panel for monitoring the building and activating an alarm; and a plurality of remote units electrically connected to the fire panel in a circuit having a loop configuration. At least some of the plurality of remote units including an indicating device for modulating a current in the circuit. The plurality of remote units are in communication with the fire panel in a master-slave relationship. The fire panel includes a calibration module for polling each indicating device to obtain a current response value and for storing said current response values, the current response value of an indicating device being based on the amplitude of the current when modulated by that indicating device.

    SELF-TESTING FIRE SENSING DEVICE
    5.
    发明公开

    公开(公告)号:US20230162593A1

    公开(公告)日:2023-05-25

    申请号:US18095633

    申请日:2023-01-11

    IPC分类号: G08B29/24 G08B17/10 G08B29/20

    摘要: Devices, methods, and systems for a self-testing fire sensing device are described herein. One device includes an adjustable particle generator and a variable airflow generator configured to generate an aerosol density level, an optical scatter chamber configured to measure a rate at which the aerosol density level decreases after the aerosol density level has been generated, and a controller configured to compare the measured rate at which the aerosol density level decreases with a baseline rate, and determine whether the self-testing fire sensing device requires maintenance based on the comparison of the measured rate at which the aerosol density level decreases and the baseline rate.

    System and method of automatically alerting a user to remain awake

    公开(公告)号:US11373503B2

    公开(公告)日:2022-06-28

    申请号:US17218151

    申请日:2021-03-30

    IPC分类号: G08B21/06 G08B29/20

    摘要: A system and method of automatically alerting a user to remain awake is able to automatically notify a user of a head tilt or other malposition of their head indicative of falling asleep, thereby preventing the user from falling asleep while driving or performing any other task requiring an alert operator. The method is provided with a headset, at least one inclination sensor, and an alerting system, wherein the inclination sensor receives a plurality of head inclination readings. The method is further provided with an allowable range of head inclination managed by the controller, thereby allowing a head tilt to be detected based on at least one abnormal reading from the plurality of head inclination readings. The controller generates a sleep warning in response to the abnormal reading, whereby the sleep warning is subsequently output by the alerting system, whereby the sleep warning is rendered as an alarm or notification.

    USER INTERFACE FOR NETWORK CAPABLE SMOKE DETECTOR

    公开(公告)号:US20210209916A1

    公开(公告)日:2021-07-08

    申请号:US17255187

    申请日:2019-12-10

    发明人: Gabriel Anzziani

    摘要: An example smoke detector includes a smoke detection circuit operable to detect smoke, a piezo buzzer, a single color visual indicator, and a transceiver operable to communicate with at least one other smoke detector. A processor is operatively connected to the smoke detection circuit, piezo buzzer, single color visual indicator, and transceiver. The processor is operable to provide distinct notifications for each of a plurality of modes of the smoke detector including at least one alarm mode that indicates detected smoke, at least one maintenance mode that indicates a maintenance condition of the smoke detector, and at least one network configuration mode. Each notification includes one or more audio tones from the piezo buzzer, one or more illuminations of the single color visual indicator, or a combination thereof.