知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

726 条记录 (耗时 0.023 秒)

    DETECTION CIRCUIT AND SYSTEM FOR DETECTING DETECTOR REMOVAL FAILURE
    1.
    发明公开
    DETECTION CIRCUIT AND SYSTEM FOR DETECTING DETECTOR REMOVAL FAILURE 审中-公开

    公开(公告)号：US20240304077A1

    公开(公告)日：2024-09-12

    申请号：US18598470

    申请日：2024-03-07

    申请人： Gulf Security Technology Company Limited

    发明人： Juan Feng ,  Junling Shao ,  Zhanlin Yang

    IPC分类号： G08B29/04 ,  H02H1/00 ,  H02H3/02 ,  H02H3/05

    CPC分类号： G08B29/04 ,  H02H1/0007 ,  H02H3/021 ,  H02H3/05

    摘要： The present application relates to a detection circuit for detecting a detector removal fault. The detection circuit comprises: a switching circuit. The switching circuit comprises one or more switching elements; an energy storage element; and a control circuit for controlling the energy storage element to discharge by controlling the one or more switching elements to perform an opening or closing action. The control circuit is configured to cause the energy storage element to discharge based on a first loop if the detector is removed from the diode bases, and to cause the energy storage element to discharge based on the first loop and a second loop including the terminal resistor if the detector is not removed from the diode bases. The control circuit is further configured to detect the detector removal fault based on an output voltage of the area monitoring module during discharge process.

    Method for determining the performance of a constant false alarm rate device of a sensor and associated devices and method
    3.
    发明公开
    Method for determining the performance of a constant false alarm rate device of a sensor and associated devices and method 审中-公开

    公开(公告)号：US20240203238A1

    公开(公告)日：2024-06-20

    申请号：US18537800

    申请日：2023-12-13

    申请人： THALES

    发明人： Adrien GILLIOT ,  Vincent CORRETJA

    IPC分类号： G08B29/04

    CPC分类号： G08B29/04

    摘要： A method for measuring the performance of a CFAR detection system of a sensor in observing an environment, the CFAR detection system being provided with an estimator suitable for determining an estimate of parameters related to noise affecting the sensor depending on parameters related to the environment, the measurement method including estimating noise-related parameters, obtaining detection thresholds for the CFAR detection system, characterizing estimation errors of the estimator of the CFAR detection system, determining each detection threshold likely to be actually used by the CFAR system due to estimation errors, and calculating the performance of the CFAR detection system on the basis of the detection thresholds determined.

    DETECTION OF INTERFERENCE OF THE OPERATION OF SMOKE DETECTORS
    5.
    发明公开
    DETECTION OF INTERFERENCE OF THE OPERATION OF SMOKE DETECTORS 审中-公开

    公开(公告)号：US20240112565A1

    公开(公告)日：2024-04-04

    申请号：US18478689

    申请日：2023-09-29

    申请人： Anastasia Mae Edwards

    发明人： Anastasia Mae Edwards

    IPC分类号： G08B29/04

    CPC分类号： G08B29/046 ,  G08B29/043

    摘要： A circuit added to a smoke detector which uses a sensing device to detect interference to smoke detectors. The circuit can be MOSFET circuit or a normally open relay circuit. The sensing devices to determine whether interference has occurred to the smoke detector, for example covering or interfering with the outer housing of the smoke detector can include a fan, a distance sensing device, a LiDAR device or other devices.

    Detecting sensor malfunction or tampering based on reductant consumption
    6.
    发明授权
    Detecting sensor malfunction or tampering based on reductant consumption 有权

    公开(公告)号：US11945401B2

    公开(公告)日：2024-04-02

    申请号：US17657589

    申请日：2022-03-31

    申请人： Caterpillar Inc.

    发明人： Jay Venkataraghavan ,  Baoyong Liu ,  Urvish Joshi ,  Kevin Lloyd Dea

    IPC分类号： B60R25/10 ,  G07C5/08 ,  G08B29/04

    CPC分类号： B60R25/101 ,  G07C5/0816 ,  G08B29/046

    摘要： A systems for detecting level sensor malfunction or tampering based on reductant consumption and determining when to initiate a quality check of reductant used in an aftertreatment system are disclosed. The system comprises a memory storing instructions and a processor executing the instructions to perform a process including: receiving dosing data associated with an amount of DEF supplied to the aftertreatment system; receiving tank level data from a level sensor in a DEF tank; comparing the dosing data with the tank level data; and based on the comparison: initiating, by the one or more processors, a quality check; and/or determining, by the one or more processors, a possible error requiring further diagnostics; and causing to present, by the one or more processors, an indication that the quality check is being initiated and/or that a possible error requires further diagnostics on a display.

    Self-testing fire sensing device for confirming a fire
    7.
    发明授权
    Self-testing fire sensing device for confirming a fire 有权

    公开(公告)号：US11900791B2

    公开(公告)日：2024-02-13

    申请号：US17729434

    申请日：2022-04-26

    申请人： Honeywell International Inc.

    发明人： Kamal Raja Ganesan ,  Barath Murugavel

    IPC分类号： G08B29/04 ,  G08B17/06 ,  G08B17/107 ,  G08B29/20

    CPC分类号： G08B29/043 ,  G08B17/06 ,  G08B17/107 ,  G08B29/20

    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.

    Subscriber, module of a subscriber and method for configuring a subscriber
    10.
    发明授权
    Subscriber, module of a subscriber and method for configuring a subscriber 有权

    公开(公告)号：US11804117B2

    公开(公告)日：2023-10-31

    申请号：US16968503

    申请日：2019-01-25

    申请人： Minimax GmbH

    发明人： Axel Grothoff ,  Thorsten Mitzlaff

    IPC分类号： G08B17/06 ,  H04W12/72 ,  A62C35/68 ,  A62C37/40 ,  H04M11/04 ,  G08B29/04

    CPC分类号： G08B17/06 ,  A62C35/68 ,  A62C37/40 ,  G08B29/043 ,  H04M11/04 ,  H04W12/72

    摘要： The present invention relates to a subscriber, in particular a module or device for monitoring a function and/or status and/or for transmitting an alarm, having: a first interface for communicating with a control panel, preferably a fire alarm and/or extinguishing control panel, a data memory for storing configuration data relating to the subscriber comprising at least an identifier of the subscriber for identifying the subscriber with respect to the control panel, a second interface for inputting configuration data to the data memory. The second interface has an NFC interface for communicating with a mobile write and/or read device The NFC interface is configured to receive at least the identifier of the subscriber from the mobile write and/or read device and to transmit it to the data memory. The invention improves known subscribers to the effect that a configuration which is less susceptible to faults and is simpler at the same time is possible.