公开(公告)号：US12067856B2

公开(公告)日：2024-08-20

申请号：US17865566

申请日：2022-07-15

申请人： Electronics and Telecommunications Research Institute

发明人： Hoe Sung Yang ,  Soo Cheol Kim ,  Hyun Seok Kim ,  So Yung Park ,  Kang Bok Lee ,  Kwang Soo Cho ,  Kyu Won Han

IPC分类号： G08B17/10 ,  G01N21/27 ,  G01N21/53 ,  G08B17/107 ,  G01N15/00

CPC分类号： G08B17/107 ,  G01N21/27 ,  G01N21/534 ,  G01N2015/0046

摘要： A smoke detection apparatus based on multiple wavelengths is provided, which includes: a chamber configured to receive an inflow of a smoke; a detector including a light emitter having a plurality of light sources that radiate light having a plurality of different wavelengths into a space in the chamber, and a light receiver configured to receive scattered light by the plurality of light sources; and a controller configured to control an operation of the detector and to distinguish between fire smoke and non-fire quasi-smoke by detecting and analyzing a light receiving signal of the light receiver.

公开(公告)号：US11959857B2

公开(公告)日：2024-04-16

申请号：US17478727

申请日：2021-09-17

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Hoe Sung Yang ,  Soo Cheol Kim ,  Hyun Seok Kim ,  Sang Hyun Mo ,  So Young Park ,  Kang Bok Lee ,  Kyu Won Han

IPC分类号： G08B17/10 ,  G01N21/53 ,  G01N21/65 ,  G01N21/31

CPC分类号： G01N21/65 ,  G01N21/53 ,  G01N2021/3166 ,  G01N2201/06113

摘要： Provided is a Raman scattering measurement apparatus including a light source which emits light to smoke particles, a filter configured to block light which is incident to the smoke particles and passes through the particle and to allow Raman scattered light to pass therethrough, and a photodetector which detects the Raman scattered light passing through the filter in order to distinguish fire smoke generated due to a true fire from non-fire smoke generated due to daily life or industrial activity. The present invention also provides a fire determination apparatus including a unit which reads a Raman shift from Raman scattered light detected by the photodetector of the Raman scattering measurement apparatus, estimates a smoke component from the read Raman shift, and determines fire/non-fire from the estimated smoke component and a method thereof.

公开(公告)号：US11747270B2

公开(公告)日：2023-09-05

申请号：US17531926

申请日：2021-11-22

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Kyu Won Han ,  Soo Cheol Kim ,  Hyun Seok Kim ,  Sang Hyun Mo ,  So Yung Park ,  Hoe Sung Yang ,  Kang Bok Lee

IPC分类号： G01N21/31 ,  G01N21/94 ,  G08B17/12

CPC分类号： G01N21/31 ,  G01N21/94 ,  G08B17/12 ,  G01N2201/126

摘要： Optical data is collected from an optical sensor of a dual wavelength, and in order to detect the fire from the collected optical data, an average value of a first wavelength, an average value of a second wavelength, and a ratio of the average values of the two wavelengths are calculated, and an amount of change of a slope of the ratio is used to detect the fire and determine the fire occurrence time. From the determined fire occurrence time, fire features are extracted from the optical data in real time according to defined rules to configure a data set. The data set may be used for learning and inference techniques to identify a fire or non-fire, a fire source, a combustion material, and the like.

公开(公告)号：US09514402B1

公开(公告)日：2016-12-06

申请号：US14947750

申请日：2015-11-20

申请人： Electronics and Telecommunications Research Institute

发明人： Hyun Seok Kim ,  Chan Won Park

IPC分类号： G06F19/00 ,  G06K19/077 ,  H01Q1/22 ,  G06K19/073 ,  H03C1/08

CPC分类号： H03C1/08 ,  G06K19/0723 ,  G06K19/0724 ,  G06K19/0726 ,  H01Q1/2225 ,  H04L27/04

摘要： Provided is a Radio Frequency Identification (RFID) tag having a plurality of antennas. The RFID tag includes: a plurality of antennas each configured to backscatter received Radio Frequency (RF) signals; a digital and memory circuitry, which once the RF signals are received through the plurality of antennas, is configured to generate a series of programmed encoding signals based on identification information to be transmitted, and to output the generated signals; and a modulator configured to vary power of an uplink signal backscattered through the plurality of antennas based on the encoding signals input from the digital and memory circuitry, in which the modulator operates such that the power of the uplink signal backscattered through each of the plurality of antennas is equal regardless of types of the encoding signals.

摘要翻译： 提供了具有多个天线的射频识别（RFID）标签。 RFID标签包括：多个天线，其被配置为反向散射所接收的射频（RF）信号; 一旦通过多个天线接收RF信号的数字和存储器电路被配置为基于要发送的识别信息生成一系列编程编码信号，并输出所生成的信号; 以及调制器，被配置为基于从所述数字和存储器电路输入的编码信号来改变通过所述多个天线反向散射的上行链路信号的功率，其中所述调制器进行操作，使得所述上行链路信号的功率通过所述多个 无论编码信号的类型如何，天线是相等的。

公开(公告)号：US09355286B2

公开(公告)日：2016-05-31

申请号：US14558129

申请日：2014-12-02

申请人： Electronics and Telecommunications Research Institute

发明人： Sang Hyun Mo ,  Hyun Seok Kim ,  Kyu Won Han ,  Jae Young Jung ,  Chan Won Park ,  Hyung Chul Park ,  Cheol Sig Pyo

IPC分类号： G06K7/10 ,  G06K19/07 ,  G06K19/073 ,  H04L25/49

CPC分类号： G06K7/10198 ,  G06K7/10297 ,  G06K19/0723 ,  G06K19/073 ,  H04L25/4902

摘要： An extended Pulse-Interval Encoding (PIE) modulating method in a Radio Frequency IDentification (RFID) system, wherein the method modulates 2-bit transmitted data and comprises: adjusting a length of a symbol according to a value of the first bit of the transmitted data; and adjusting a length of an energy transfer waiting section according to a value of the second bit of the transmitted data.

摘要翻译： 一种在射频识别（RFID）系统中的扩展脉冲间隔编码（PIE）调制方法，其中该方法调制2位发送数据，包括：根据发送的第一比特的值来调整符号的长度 数据; 以及根据所发送的数据的第二位的值来调整能量传送等待段的长度。

公开(公告)号：US11668605B1

公开(公告)日：2023-06-06

申请号：US17860227

申请日：2022-07-08

申请人： ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

发明人： Soo Cheol Kim ,  Hyun Seok Kim ,  So Yung Park ,  Hoe Sung Yang ,  Kang Bok Lee ,  Kwang Soo Cho ,  Kyu Won Han

IPC分类号： G01J5/00 ,  G01J1/44

CPC分类号： G01J5/0018 ,  G01J1/44

摘要： Provided is a system for detecting flame, which includes a light collecting module configured to collect light emitted from flame and sense location information and intensity information of the collected light, a memory configured to store a program for determining fire information on the basis of the sensed location information and intensity information of the light, and a processor configured to calculate intensity information and fluttering information of the flame from the intensity information of the light by executing the program stored in the memory, to calculate centroid spatial distribution information of the flame from the location information of the light, and to detect whether there is flame on the basis of at least one of the intensity information of the flame, the fluttering information of the flame, and the centroid spatial distribution information.