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公开(公告)号：US20180331609A1
公开(公告)日：2018-11-15
申请号：US15867153
申请日：2018-01-10
Inventor： Won Kyu CHOI , Hyun Seok KIM , Sang Hyun MO , Chan Won PARK , Kyu Won HAN
Abstract: An energy harvester includes a first core vibrating in a predetermined direction; a second core being U-shaped and having opposite ends facing at least a part of the first core; a pair of magnetic bodies forming a magnetic flux connected between the first core and the second core; and a coil member wound on the second core to generate an induced current due to a magnetic flux change in the second core.
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公开(公告)号：US20230206742A1
公开(公告)日：2023-06-29
申请号：US17865566
申请日：2022-07-15
Inventor： Hoe Sung YANG , Soo Cheol KIM , Hyun Seok KIM , So Yung PARK , Kang Bok LEE , Kwang Soo CHO , Kyu Won HAN
IPC: G08B17/107 , G01N21/27 , G01N21/53
CPC classification number: G08B17/107 , G01N21/27 , G01N21/534 , G01N2015/0046
Abstract: 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.
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公开(公告)号：US20230018507A1
公开(公告)日：2023-01-19
申请号：US17522268
申请日：2021-11-09
Inventor： Soo Cheol KIM , Kang Bok LEE , Hyun Seok KIM , Sang Hyun MO , So Yung PARK , Hoe Sung YANG , Kwang Soo CHO , Kyu Won HAN
Abstract: Provided herein is an infrared spectroscopy technique capable of performing spectroscopic analysis on infrared rays in a broad infrared range (including a near infrared range, a short infrared range, a mid-infrared range, a far infrared range, and an extreme infrared range). An apparatus and a method for spectroscopic analysis on infrared rays are provided, without using an image sensor having a limited response range, to generate a signal in which transmitted light for each wavelength passes through a plurality of filters having different transmittances for each wavelength and is spatially pattern-coded, restore the signal into an infrared transmittance image, discriminate a wavelength according to a transmittance of the filter from the infrared transmittance image, calculate an intensity of the light for each wavelength, and output infrared spectrum information.
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4.发明申请公开(公告)号：US20220163443A1
公开(公告)日：2022-05-26
申请号：US17531926
申请日：2021-11-22
Inventor： Kyu Won HAN , Soo Cheol KIM , Hyun Seok KIM , Sang Hyun MO , So Yung PARK , Hoe Sung YANG , Kang Bok LEE
Abstract: 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.
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Patent Agency Ranking
公开(公告)号：US20230160748A1
公开(公告)日：2023-05-25
申请号：US17860227
申请日：2022-07-08
Inventor： Soo Cheol KIM , Hyun Seok KIM , So Yung PARK , Hoe Sung YANG , Kang Bok LEE , Kwang Soo CHO , Kyu Won HAN
CPC classification number: G01J5/0018 , G01J1/44
Abstract: 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.
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公开(公告)号：US20220099579A1
公开(公告)日：2022-03-31
申请号：US17478727
申请日：2021-09-17
Inventor： Hoe Sung YANG , Soo Cheol KIM , Hyun Seok KIM , Sang Hyun MO , So Young PARK , Kang Bok LEE , Kyu Won HAN
Abstract: 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.
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7.发明申请公开(公告)号：US20190147201A1
公开(公告)日：2019-05-16
申请号：US16033595
申请日：2018-07-12
Inventor： Dong Beom SHIN , Yang Gi KANG , Kwang Jin OH , Sang Mok LEE , Hyun Seok KIM , Sang Hyun MO , Kang Bok LEE
IPC: G06K7/10 , H04B10/116
Abstract: A radio frequency identification (RFID) technology which overcomes a cross-reading problem by using visible light recognition and identification values. An RFID reader terminal includes a visible light transmitter configured to transmit a visible light signal including an identification value of the RFID reader terminal, a radio frequency (RF) receiver configured to receive an RF signal including an identification value of an RFID tag terminal and information of the RFID tag terminal from the RFID tag terminal, and a reader controller configured to determine whether the identification value of the RFID reader terminal is identical to the identification value of the RFID tag terminal. In addition, there is provided an RFID tag terminal corresponding to the RFID reader terminal.
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公开(公告)号：US20230206741A1
公开(公告)日：2023-06-29
申请号：US17849835
申请日：2022-06-27
Inventor： Hoe Sung YANG , Soo Cheol KIM , Hyun Seok KIM , So Yung PARK , Kang Bok LEE , Kwang Soo CHO , Kyu Won HAN
IPC: G08B17/107 , G08B29/18 , G01N21/53 , G01N21/31 , G01N15/06
CPC classification number: G08B17/107 , G08B29/185 , G01N21/534 , G01N21/31 , G01N15/06 , G01N2021/4792
Abstract: Provided is an apparatus for detecting smoke based on polarization. The apparatus includes a chamber into which smoke is introduced, a detection unit comprising a light-emitting unit configured to emit light beams having a plurality of different wavelengths into a space in the chamber, and a light-receiving unit configured to receive scattered light from a plurality of light sources, a control unit configured to control an operation of the detection unit, and a fire determination unit configured to distinguish between fire smoke and non-fire analogous smoke by detecting and analyzing a light-receiving signal received by the light-receiving unit, in which horizontal polarization and vertical polarization are applied to the plurality of light sources of the light-emitting unit and the light-receiving unit.
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公开(公告)号：US20170193256A1
公开(公告)日：2017-07-06
申请号：US15172433
申请日：2016-06-03
Inventor： Jae Young JUNG , Chan Won PARK , Hyun Seok KIM , Hyo Chan BANG , Won Kyu CHOI
CPC classification number: G06K19/0726 , G06K2007/10495
Abstract: Disclosed are a high speed wide range RFID tag capable of improving a data transmission speed and a recognition distance between an RFID tag and an RFID reader by controlling a reflected power as multi levels through adjustment of a reflection coefficient in the RFID tag, and a method of controlling the same. The RFID tag includes a data converting unit configured to convert stored RFID serial tag data into a number of multi-level parallel data according to a request of an RFID reader, a reflection coefficient adjusting unit configured to generate a plurality of reflection coefficients corresponding to a number of the converted parallel data, and a transmitting unit configured to transmit a number of the multi-level parallel data according to the generated plurality of tag reflection coefficients through an antenna to the RFID reader.
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