• Title/Summary/Keyword: 데이터 취득장치

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A Red Ginseng Internal Measurement System Using Back-Projection (Back-Projection을 활용한 홍삼 내부 측정 시스템)

  • Park, Jaeyoung;Lee, Sangjoon
    • KIPS Transactions on Software and Data Engineering
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    • v.7 no.10
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    • pp.377-382
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    • 2018
  • This study deals with internal state and tissue density analysis methods for red ginseng grade determination. For internal measurement of red ginseng, there have been various studies on nondestructive testing methods since the 1990s, It was difficult to grasp the most important inner hole and inside whites in the grading. So in this study, we developed a closed capturing device for infra-red illumination environment, and developed an internal measurement system that can detect the presence and diameter of inner hole and inside whites. Made devices consisted of infrared lights with a high transmission rate of red ginseng in 920 nanometer wave band, a infra-red camera and a Y axis actuator with a red ginseng automatically controlled focus on the camera. The proposed algorithm performs an auto-focus system on the Y-axis actuator to automatically adjust the sharp focus of the object according to the size and thickness. Then red ginseng is rotated $360^{\circ}$ at $1^{\circ}$ intervals and 360 total images are acquired, and reconstructed as a sinogram through Radon transform and Back-projection algorithm was performed to acquire internal images of red ginseng. As a result of the algorithm, it was possible to acquire internal cross-sectional image regardless of the thickness and shape of red ginseng. In the future, if more than 10,000 different shapes and sizes of red ginseng internal cross-sectional image are acquired and the classification criterion is applied, it can be used as a reliable automated ginseng grade automatic measurement method.

The Road Cross Section Evaluation With The Rotational Laser Scanner (회전식 레이저를 이용한 도로 횡단경사 평가에 관한 연구)

  • Lee, Jun Seok;Yun, Duk-Geun;Sung, Jung-Gon
    • International Journal of Highway Engineering
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    • v.12 no.4
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    • pp.71-78
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    • 2010
  • The road safety depend on many road factors like vertical alignment, horizontal alignment and road cross section angle. These data are hardly to get with drawings, and the real data are differ from drawings because of road pavement overlay, etc. To get these data, so many time and cost are needed, moreover it is dangerous work in heavy traffic road. In this study we obtained the road safety data with RoSSAV(Road Safety Survey & Analysis Vehicle) of Korea Institute of Construction Technology in accordance with traffic flow, and make analysis of road safety with the vertical alignment, horizontal alignment and road cross section angle data. We derived the safety improvement method in Young-dong accident prone spot and described detail method in this paper.

IEC 61850 Based IoT Gateway Platform for Interworking to Microgrid Operational System (마이크로그리드 운영 시스템 연계를 위한 IEC 61850 기반 IoT 게이트웨이 플랫폼)

  • Park, Jeewon;Song, ByungKwen;Shin, InJae
    • KEPCO Journal on Electric Power and Energy
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    • v.4 no.2
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    • pp.67-73
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    • 2018
  • There are many types of power facilities such as transformers, switches, and energy storage devices in the micro grid environment. However, with the development of IoT technology, opportunities to acquire sensor information such as temperature, pressure, and humidity are provided. In the existing micro grid environment, the communication protocols such as MMS transport protocol in IEC 61850 standard is applied in accordance with the integrated operation between the power facilities and the platform. Therefore, to accommodate IoT data, a gateway technology that can link IoT data to a data collection device (FEP) based on IEC 61850 is required. In this paper, we propose IEC 61850 based IoT gateway platform prototype for microgrid operating system linkage. The gateway platform consists of an IoT protocol interface module (MQTT, CoAP, AMQP) and database, IEC 61850 server. For databases, We used open source based NoSQL databases, Hbase and MongoDB, to store JSON data. We verified the interoperability between the IoT protocol and the IEC 61850 protocol using Sisco's MMS EASY Lite.

Color Correction Using Polynomial Regression in Film Scanner (다항회귀를 이용한 필름 스캐너에서의 색보정)

  • 김태현;백중환
    • Journal of the Institute of Electronics Engineers of Korea SP
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    • v.40 no.1
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    • pp.43-50
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    • 2003
  • Today, the demand of image acquisition systems grows as the multimedia applications go on increasing greatly. Among the systems, film scanner is one of the systems, which can acquire high quality and high resolution images. However due to the nonlinear characteristic of the light source and sensor, colors of the original film image do not correspond to the colors of the scanned image. Therefore color correction mr the scanned digital image is essential in the film scanner. In this paper, polynomial regression method is applied for the color correction to CIE $L^{*}$ $a^{*}$ $b^{*}$ color model data converted from RGB color model data. A1so a film scanner hardware with 12 bit color resolution for each R, G, B and 2400 dpi was implemented by using TMS320C32 DSP chip and high resolution line sensor. An experimental result shows that the average color difference ($\Delta$ $E^{*}$$_{ab}$ ) is reduced from13.48 to 8.46.6.6.6.6.

Design and Implementation of content information enrichment service in the IPTV environment (IPTV 환경에서의 콘텐츠 정보 강화 서비스의 설계 및 구현)

  • Lee, Jong-Seol;Jang, Se-Jin;Lee, Seok-Pil
    • Proceedings of the Korean Society of Broadcast Engineers Conference
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    • 2011.07a
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    • pp.424-427
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    • 2011
  • 방송 환경과 인터넷 환경이 융합되고 스마트 TV의 등장에 따라, 사용자는 복잡한 미디어 서비스 환경에 노출되었다. 이로 인해 사용자가 접하는 미디어 콘텐츠의 종류와 데이터의 양은 기하급수 적으로 증가 하고 있다. 웹과 인터넷을 기반으로 하는 정보기술은 모바일 전자 기술의 발달에 따라 데스크탑 이라는 공간적인 한계를 벗어나 유기적인 유비쿼터스 환경으로 변화하고 있으며, 정보 및 콘텐츠의 개념은 웹문서와 텍스트를 넘어서 UCC, 음악, 영화 등의 모바일 멀티미디어 콘텐츠들로까지 빠르게 확장되고 있다. 또한, N-스크린과 IPTV 서비스의 등장은 사용자로 하여금 장소와 시간에 관계없이 미디어를 취득할 수 있는 이득을 제공할 수 있으나 사용자가 선택은 더욱 힘들어 졌다. 방송 통신 융합 단말에서 콘텐츠에 대한 정보를 제공 받기 위해서는 TV-Anytime 인터페이스, MPEG Query Format 인터페이스, OPEN API 등이 사용 가능하다. TV-Anytime 인터페이스는 대용량 저장 장치를 갖는 방송 단말기에서 메타데이터를 제공 및 검색하기 위한 인터페이스를 제공하며, MPEG Query Format 인터페이스는 MPEG-7을 기반으로 하는 메타데이터를 검색하기 위한 인터페이스를 제공한다. 또한, OPEN API는 업체들을 중심으로 공개적으로 제공 되어지는 API로 개방과 참여를 목적으로 한다. 이에 본 논문에서는 사용자의 콘텐츠 사용 정보를 바탕으로 선호 정보를 생성하고, 이를 바탕으로 콘텐츠에 대해서 강화된 정보를 생성하기 위한 서비스를 설계 및 개발한다.

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Suggestion of Device for Collecting Fine Dust using Drone (드론을 이용한 미세먼지 데이터 수집 장치 제안)

  • Jo, Youngjun;Baek, SeungHyun;Lee, JongGu;Yu, Sangmin;Jang, Minseok;Lee, Yonsik
    • Proceedings of the Korean Society of Computer Information Conference
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    • 2019.07a
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    • pp.397-400
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    • 2019
  • 급격히 증가하는 자동차 수, 발전량 증가 등으로 인하여 미세먼지로 인한 환경오염이 심각한 사회문제로 대두되고 있는 실정이다. 50개가 넘는 국가들이 권고치 이상의 미세먼지로 인해 피해를 받고 있으며 각 피해국들은 미세먼지 저감 대책 및 발생을 최소화하기 위한 방안을 연구하고 있다. 하지만 현재 고정형 미세먼지 취득 드론으로는 다양한 포인트의 미세먼지 데이터를 수집하기 힘든 상황이며, 기존 드론을 활용한 방법에서 도 회전 날개의 영향으로 인해 정확한 데이터를 수집하기 힘든 실정이다. 본 논문에서는 드론과 특정 구조물을 활용한 미세먼지 수집 방법을 제안하고 이의 효율성을 보여주고자 한다.

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Improved Control Algorithm Development for Control Element Drive Mechanism Control System (제어봉구동장치제어계통의 개선된 제어 알고리즘 개발)

  • Kim, Byeong-Moon;Lee, Young-Ryul;Han, Jae-Bok;You, Joon
    • Proceedings of the KIEE Conference
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    • 1995.07b
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    • pp.761-765
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    • 1995
  • The old Timing Controller for Control Element Drive Mechanism (CEDM) is designed as an open loop control system because it is difficult to mount sensors within the Control Element Drive Mechanism(CEDM) which is operating under the pressure boundary of the reactor vessel. In this work new method which can be used to detect the CEDM operational conditions without mounting sensors within the CEDM housing is developed in order to resolve problems of the old Timing Controller. By using the developed new method, the new Timing Controller for the CEDM is designed as a closed loop controller which has features of the control rod drop prevention, fine position control and the coil life time extension. The algorithm developed under closed loop control concept resolves most problems occurred in the old Timing Controller and improves the performance and reliability of the system. During designing and testing of the Timing Controller algorithm, the real time CEDM simulator developed here was used. And all functions of the developed algorithm were verified using CEDM simulator with the real data collected from the site. The results show that the Timing Controller performs its intended functions properly.

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A Study on the Monitoring Technique for Musculoskeletal Safety Management and Implementation of the System (근골격계 안전관리를 위한 모니터링 기법에 관한 연구 및 시스템 구현)

  • Shin, Yeong-Ju;Joo, Ha-Young;Yang, Jin-Hong
    • The Journal of Korea Institute of Information, Electronics, and Communication Technology
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    • v.13 no.3
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    • pp.267-276
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    • 2020
  • Manufacturing workers are easily exposed to the risk of musculoskeletal disorders caused by repetitive tasks in their working environment. This is due to problems with occupational characteristics that repeatedly use the body. However, the current lack of monitoring systems for monitoring and prevention has led to an increase in workers' exposure to risks each year. This paper presents how to solve these problems in real working environment by producing wearable devices using IMU sensors. After wearing a wearable type device, the user's movement is judged through data analysis by receiving the rotation value according to musculoskeletal movement. At this time, the risk is determined by measuring the number of rotations of the user by eliminating bias and eliminating cumulative error, acquiring sophisticated data, and analyzing it in the form of dynamic threshold values. Using the wearable device proposed in this paper, the effect of this method could be checked through a web page measuring the number of rotations for elbow musculoskeletal disorders.

Method of Biological Information Analysis Based-on Object Contextual (대상객체 맥락 기반 생체정보 분석방법)

  • Kim, Kyung-jun;Kim, Ju-yeon
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2022.05a
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    • pp.41-43
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    • 2022
  • In order to prevent and block infectious diseases caused by the recent COVID-19 pandemic, non-contact biometric information acquisition and analysis technology is attracting attention. The invasive and attached biometric information acquisition method accurately has the advantage of measuring biometric information, but has a risk of increasing contagious diseases due to the close contact. To solve these problems, the non-contact method of extracting biometric information such as human fingerprints, faces, iris, veins, voice, and signatures with automated devices is increasing in various industries as data processing speed increases and recognition accuracy increases. However, although the accuracy of the non-contact biometric data acquisition technology is improved, the non-contact method is greatly influenced by the surrounding environment of the object to be measured, which is resulting in distortion of measurement information and poor accuracy. In this paper, we propose a context-based bio-signal modeling technique for the interpretation of personalized information (image, signal, etc.) for bio-information analysis. Context-based biometric information modeling techniques present a model that considers contextual and user information in biometric information measurement in order to improve performance. The proposed model analyzes signal information based on the feature probability distribution through context-based signal analysis that can maximize the predicted value probability.

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Implementation of Low-priced Bicycle Black Box Using 6-axis Sensor (6축 센서를 이용한 저가형 자전거 블랙박스 구현)

  • Weon, La-Kyoung
    • The Journal of The Korea Institute of Intelligent Transport Systems
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    • v.18 no.5
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    • pp.171-182
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    • 2019
  • Bicycles are a pollution-free means of transportation. In addition to leisure, the use of bicycles is increasing as alternative eco-friendly transportation. Accordingly, bicycle accidents are also increasing. The purpose of this study is to implement bicycle black box technology to identify situation when a bicycle accident occurs. Currently, bicycle black box products are mainly based on video cameras, and are commercially available by adding various functions mainly on high resolution cameras and are sold at high prices. If a bicycle accident occurs, quantitative data on the accident location at the time of the accident and the state of the bicycle at the time of the accident is required. In this study, IMU sensor used to obtain acceleration and slope, and time and coordinates are obtained. In addition, real-time acceleration and tilt data while is stored in memory card and by using Bluetooth transmit to the smart phone owned by the in real time to prevent accidents and to monitor status.