• Title/Summary/Keyword: Thermal Imaging Camera

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Temperature Measurement of Photovoltaic Modules Using Non-Contact Infrared System

  • Jovanovic, Ugljesa;Mancic, Dragan;Jovanovic, Igor;Petrusic, Zoran
    • Journal of Electrical Engineering and Technology
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    • v.12 no.2
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    • pp.904-910
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    • 2017
  • This paper presents temperature measurement of solar photovoltaic modules using the custom-made system composed of an infrared temperature sensor and a microcontroller. The obtained measurement results are processed, displayed and stored on a PC using the custom-made virtual instrument. The proposed system overcomes some of the problems related to the contact sensor application, and at the same time offers accurate readings and better flexibility. The proposed system is especially suitable for applications where the cost is a limiting factor in the choice of measuring system. The conducted analysis and the obtained results have shown an excellent accuracy of the proposed system in comparison to a high quality thermal imaging camera used as the reference instrument.

The Educational Effect of the Visualization of Heat Conduction with a Thermal Imaging Camera on Elementary School Students in Small Group Activity - Focusing on the Change of the Mental Model of Why Metal Feels Cold - (열화상 사진기로 열전도 현상을 시각화한 자료가 소집단 활동에서 초등학생에게 미치는 교육적 효과 - 금속이 차갑게 느껴지는 이유에 대한 정신모형 변화를 중심으로 -)

  • Lee, Ga Ram;Ju, Eunjeong;Park, Il-Woo
    • Journal of Korean Elementary Science Education
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    • v.41 no.3
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    • pp.569-591
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    • 2022
  • This study aims to investigate the educational effects of the visualization of heat conduction using a thermal imaging camera on elementary school students through small group activities. It endeavors to explain the reason for why metal feels cold. The scholars conducted in-depth interviews before and after learning the unit "Temperature and Heat" for four students in fifth grade in Seoul. Recorded video and audio materials of the activities, their outputs, and journals of scholars were collected, reviewed, and analyzed. The result demonstrated that visualizing heat conduction using the thermal imaging camera aroused curiosity and provided an opportunity for sophisticated observation and integrated thinking. In addition, the visualization of the heat conduction phenomenon was used as the basis for interpretation and rebuttal for active communication during the small group activities of the students. Consequently, the students changed their non-scientific beliefs, refined their knowledge, and developed their mental models through a small group discussion based on a thermal image video.

A Study on the Improvement of Image Quality for a Thermal Imaging System with focal Plane Array Typed Sensor (초점면 배열 방식 열상 카메라 시스템의 화질 개선 연구)

  • 박세화
    • Journal of the Korea Academia-Industrial cooperation Society
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    • v.1 no.2
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    • pp.27-31
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    • 2000
  • Thermal imaging system is implemented for the measurement and the analysis of the thermal distribution of the target objects. The main Part of the system is thermal camera in which a focal plane array typed sensor is introduced The sensor detects mid-range infrared spectrum or target objects and then it output generic video signal which should be processed to form a thermal image frame. A digital signal processor(DSP) in the system inputs analog to digital converted data. performs algorithms to improve the thermal images and then outputs the corrected frame data to frame buffers for NTSC encoding and for digital outputs.. To enhance the quality of the thermal images, two point correction method is applied. Figures indicate that the corrected thermal images are much improved.

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Development of IR Thermal Camera Detector based on Smartphone Interlocking for Hidden Camera Crime Prevention (몰래카메라 범죄방지를 위한 스마트폰 연동 기반의 IR 열카메라 탐지기 개발)

  • Kang, Young-Gil;Cho, Pil-Gu;Kim, Young-Gon
    • The Journal of the Institute of Internet, Broadcasting and Communication
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    • v.21 no.6
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    • pp.1-8
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    • 2021
  • The performance of hidden camera cameras is improving day by day due to miniaturization and advanced technology integration according to the speed of technological development of smartphones. As this external networking computing environment is advanced and diversified, exposure to hidden cameras in addition to general safety cameras is also increasing. On the other hand, the technology for detecting and preventing hidden cameras is not keeping up with the development and speed of these hidden cameras. Therefore, in this study, the heat of the hidden camera was detected using infrared thermal detection technology based on general image and thermal image synthesis technology, and the reflectance of each wavelength according to the difference in ambient temperature was analyzed to reduce the false positive rate.

Inspection of Calandria Reactor Area of Wolsung NPP using Thermal Infrared and CCD Images

  • Cho, Jai-Wan;Kim, Chang-Hoi;Seo, Yong-Chil;Park, Young-Soo;Kim, Seung-Ho
    • 제어로봇시스템학회:학술대회논문집
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    • 2002.10a
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    • pp.96.4-96
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    • 2002
  • Thermal infrared imaging is a highly promising technology for condition monitoring and predictive maintenance of electronic, electrical and mechanical elements in nuclear power plants. However, conventional low-cost infrared imaging systems suffer from poor spatial resolution compared to commercial CCD cameras. This paper describes an approach to enhance inspection performances for calandria reactor area of Wolsung nuclear power plant through the technique of superimposing thermal infrared image into real CCD image. In the occurrence of thermal abnormalities on observation points and areas of calandria reactor area, unusual hot image taken from thermal infrared camera is mapped upon re...

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Farm Damage Prevention System Using Thermal imaging Camera and Deep Learning (열화상 카메라와 딥러닝을 이용한 농가피해방지 시스템)

  • Shin, Seung-min;Lee, Sang-hoon;Choi, Hyo-sun;Kim, Seung-hoo;Lee, Cherl-hee
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2019.05a
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    • pp.306-309
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    • 2019
  • The damage to farms due to wild animals such as wild boars and elks increases every year, but, in the current system, the catchers from government hunt animals by using guns at night as making an effort to detect wild animals personally by using flashlights. This is very time-inefficient and immediate follow-up action on being damaged is not possible. In this paper, we introduce a system which can detect and recognize the wild animals or the people with high accuracy using thermal imaging camera and infrared camera in company with deep learning technology, so that could kick out or catch the wild animals more quickly than current system.

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Development and Possibility Evaluation of Thermal Imaging Camera for Medical Monitoring of Body Temperature (열화상카메라 개발을 통한 의료용 체열진단 가능성 평가)

  • Ryu, Seong Mi;Kim, Hye-Jeong
    • Journal of Korea Society of Industrial Information Systems
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    • v.20 no.1
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    • pp.57-62
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    • 2015
  • Recently, thermography camera have been using for body-temperature monitoring. We report on fabrication of prototype thermography camera using the chalcogenide-glass lens and the camera test by analysis of thermal image. In this work, it was found out that thermography camera discerned body-temperature between 20 and $50^{\circ}C$ with noise equivalent temperature difference(NETD) of 87.7mK. It is confirmed that thermography camera using the chalcogenide-glass lens is applicable to the body-temperature monitoring system.

A Design of Fire Detection System based on Infrared Thermal Imaging & CCD Camera (적외선 열영상 및 CCD 카메라 기반 화재감지 시스템 설계)

  • Kim, Tae Wan;Choi, Chang Yong;Lee, Dong Myung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2013.05a
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    • pp.597-598
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    • 2013
  • A lot of fire and crime accidents are caused to a significant national loss. For example, the network and power facilities in national industry facilities, the fire risk region in large scale factories such as nuclear and thermal power plants, large-sized buildings, cultural properties, metal and steel mills, chemical plants, oil refineries. The development of a fire detection system that can detects the temperature and movement of objects as high-level quality is essential to prevent these incidents and accidents fundamentally. In this paper, the fire detection system based on infrared thermal imaging & CCD camera id designed to solve these problems.

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