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    Fire detection device and method of detecting fire
    31.
    发明授权
    Fire detection device and method of detecting fire 有权

    公开(公告)号：US09928709B2

    公开(公告)日：2018-03-27

    申请号：US15164937

    申请日：2016-05-26

    申请人： FUJITSU LIMITED

    发明人： Ryozo Takasu ,  Jiyunichi Iwata

    IPC分类号： G08B17/12 ,  G08B17/117 ,  G08B25/10 ,  G08B25/14

    CPC分类号： G08B17/117 ,  G08B25/10 ,  G08B25/14

    摘要： A fire detection device includes a gas sensor, a measuring instrument, and a control device. The gas sensor is configured to detect a gaseous substance in a measurement space. The gas sensor is configured to output a first result of the detection. The measuring instrument is configured to measure a diameter of each particle existing in the measurement space and count a number of particles for each of diameter ranges to generate distribution data. The control device includes a processor. The processor is configured to determine, on basis of the first result acquired from the gas sensor, whether a smoke exists in the measurement space. The processor is configured to start the measuring instrument upon determining that a smoke exists in the measurement space. The processor is configured to determine, on basis of first distribution data acquired from the measuring instrument, whether a fire has occurred.

    Fire Detector With a Scattered Light Arrangement
    32.
    发明申请
    Fire Detector With a Scattered Light Arrangement 审中-公开

    公开(公告)号：US20180061215A1

    公开(公告)日：2018-03-01

    申请号：US15560609

    申请日：2016-02-12

    申请人： Siemens Schweiz AG

    发明人： Walter Vollenweider

    IPC分类号： G08B29/04 ,  G08B17/117 ,  G08B21/12 ,  G08B17/107

    摘要： The present disclosure relates to fire detectors. Teachings thereof may be embodied in an optical smoke detector. For example, a fire detector may include: a housing with a smoke inlet opening; a detection unit for detection of specific fire parameters; an analyzing unit for output of a fire alarm; a light transmitter; and a light receiver connected to the analyzing unit for monitoring the smoke inlet opening for impermissible pollution. The light transmitter and the light receiver comprise a scattered light arrangement with a scattered light volume in a region of the smoke inlet opening susceptible to pollution. The light transmitter may be oriented so a part of the light bundle traverses the region without striking adjacent housing parts, or a part of the light bundle strikes a housing part and a surface of the housing part deflects the second part of the light bundle away from the light receiver or absorbs the second part of the light bundle. The analyzing unit sends a service message if the scattered light detected by the light receiver exceeds a threshold value.

    Smoke detection
    34.
    发明授权
    Smoke detection 有权

    公开(公告)号：US09792795B2

    公开(公告)日：2017-10-17

    申请号：US15228930

    申请日：2016-08-04

    申请人： UT-Battelle, LLC

    发明人： Robert J. Bruce Warmack ,  Dennis A. Wolf ,  Steven Shane Frank

    IPC分类号： G08B3/10 ,  G08B5/36 ,  G08B17/10 ,  G08B29/18 ,  G08B29/20 ,  G08B17/117 ,  G08B17/00

    CPC分类号： G08B17/10 ,  G08B3/10 ,  G08B5/36 ,  G08B17/00 ,  G08B17/117 ,  G08B29/188 ,  G08B29/20

    摘要： Various apparatus and methods for smoke detection are disclosed. In one embodiment, a method of training a classifier for a smoke detector comprises inputting sensor data from a plurality of tests into a processor. The sensor data is processed to generate derived signal data corresponding to the test data for respective tests. The derived signal data is assigned into categories comprising at least one fire group and at least one non-fire group. Linear discriminant analysis (LDA) training is performed by the processor. The derived signal data and the assigned categories for the derived signal data are inputs to the LDA training. The output of the LDA training is stored in a computer readable medium, such as in a smoke detector that uses LDA to determine, based on the training, whether present conditions indicate the existence of a fire.

    FIRE DETECTION DEVICE AND METHOD OF DETECTING FIRE
    37.
    发明申请
    FIRE DETECTION DEVICE AND METHOD OF DETECTING FIRE 有权
    火灾检测装置及其检测方法

    公开(公告)号：US20160358442A1

    公开(公告)日：2016-12-08

    申请号：US15164937

    申请日：2016-05-26

    申请人： FUJITSU LIMITED

    发明人： Ryozo Takasu ,  Jiyunichi Iwata

    IPC分类号： G08B17/117

    CPC分类号： G08B17/117 ,  G08B25/10 ,  G08B25/14

    摘要： A fire detection device includes a gas sensor, a measuring instrument, and a control device. The gas sensor is configured to detect a gaseous substance in a measurement space. The gas sensor is configured to output a first result of the detection. The measuring instrument is configured to measure a diameter of each particle existing in the measurement space and count a number of particles for each of diameter ranges to generate distribution data. The control device includes a processor. The processor is configured to determine, on basis of the first result acquired from the gas sensor, whether a smoke exists in the measurement space. The processor is configured to start the measuring instrument upon determining that a smoke exists in the measurement space. The processor is configured to determine, on basis of first distribution data acquired from the measuring instrument, whether a fire has occurred.

    摘要翻译： 火灾检测装置包括气体传感器，测量仪器和控制装置。 气体传感器被配置为检测测量空间中的气态物质。 气体传感器被配置为输出检测的第一结果。 测量仪器被配置为测量存在于测量空间中的每个颗粒的直径，并且计算每个直径范围的颗粒数以产生分布数据。 控制装置包括处理器。 处理器被配置为基于从气体传感器获取的第一结果来确定测量空间中是否存在烟雾。 处理器被配置为在确定测量空间中存在烟雾时启动测量仪器。 处理器被配置为基于从测量仪器获取的第一分发数据来确定是否已经发生火灾。

    Active protection system
    38.
    发明申请
    Active protection system 有权
    主动保护系统

    公开(公告)号：US20160314676A1

    公开(公告)日：2016-10-27

    申请号：US14999146

    申请日：2016-04-04

    申请人： Wen-Hung Hsieh

    发明人： Wen-Hung Hsieh

    IPC分类号： G08B21/12 ,  G08B17/117

    CPC分类号： G08B17/125

    摘要： An active protection system for protecting an object includes a first lens, a second lens, a processing unit and an alarm unit. The first lens is configured to receive first light and generate a first image. The second lens is configured to receive second light and generate a second image. The processing unit is configured to obtain a characteristic value of the object from the second image, determine whether the characteristic value reaches a pre-set value, and judge whether the object is regulated in a predetermined period after the characteristic value reaches the pre-set value. The alarm unit is configured to raise an alarm under control of the processing unit if the object is not regulated in the predetermined period after the characteristic value reaches the pre-set value.

    摘要翻译： 用于保护物体的主动保护系统包括第一透镜，第二透镜，处理单元和报警单元。 第一透镜被配置为接收第一光并产生第一图像。 第二透镜被配置为接收第二光并产生第二图像。 所述处理单元被配置为从所述第二图像获得所述对象的特征值，确定所述特征值是否达到预定值，并且在所述特征值到达所述预设值之后，在预定时段内判断所述对象是否被调节 值。 警报单元被配置为在特征值达到预定值之后的预定时段内如果物体不被调节，则在处理单元的控制下提高报警。

    Chemical alert system using a protable device with integrated chemical sensor
    39.
    发明授权
    Chemical alert system using a protable device with integrated chemical sensor 有权
    化学警报系统采用具有集成化学传感器的保护装置

    公开(公告)号：US09401983B2

    公开(公告)日：2016-07-26

    申请号：US14161137

    申请日：2014-01-22

    申请人： Sensirion AG

    发明人： Moritz Lechner ,  Rafael Santschi

    IPC分类号： G08B21/00 ,  H04M1/725 ,  G08B21/12 ,  G01N27/12 ,  G08B17/117

    CPC分类号： H04M1/72536 ,  G01N27/122 ,  G08B17/117 ,  G08B21/12 ,  H04M2250/12

    摘要： A chemical alert system for generating an alarm is described including a portable electronic device, preferably with telecommunication capabilities to allow for data and/or voice communication via private or public networks, and at least one chemical sensor integrated with the housing of the portable device and controlled by a chemical sensor processing unit, further comprising an alert discriminator receiving input based on measurements of the chemical sensor, performing a test on the input and based on an outcome of the test initiating the transfer of measurements of the chemical sensor to a remote processing facility.

    摘要翻译： 描述了一种用于产生警报的化学警报系统，其包括便携式电子设备，优选地具有通过私有或公共网络进行数据和/或语音通信的电信能力以及与便携式设备的外壳集成的至少一个化学传感器，以及 由化学传感器处理单元控制，还包括警报识别器，其基于化学传感器的测量接收输入，对输入进行测试，并且基于测试结果，启动将化学传感器的测量值传送到远程处理 设施。