• Title/Summary/Keyword: Automatic measurement

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A Study of Automatic Measurement using Bluetooth Modem for Railway structures (블루투스 통신모뎀을 이용한 철도구조물의 자동계측에 관한 연구)

  • Lee, Seong-Won;Lee, Keun-Ho;Chung, Jae-Min
    • Proceedings of the KSR Conference
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    • 2006.11b
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    • pp.316-321
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    • 2006
  • The objective of this study is the developement of real time automatic datalogger using bluetooth modem for safety and maintence of civil construction sites. Automatic measurement system using general wireless modem is studied, and data communication method of between personal computer(or Server) and automatic measurement data is analyzed. Therefore data communication method and analyzing program of automatic measurement data is developed using real time automatic datalogger with bluetooth modem. The results of this study will be using real time automatic measurement of civil construction sites

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Automatic Hand Measurement System from 2D Hand Image for Customized Glove Production

  • Han, Hyun Sook;Park, Chang Kyu
    • Fashion & Textile Research Journal
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    • v.18 no.4
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    • pp.468-476
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    • 2016
  • Recent advancements in optics technology enable us to realize fast scans of hands using two-dimensional (2D) image scanners. In this paper, we propose an automatic hand measurement system using 2D image scanners for customized glove production. To develop the automatic hand measurement system, firstly hand scanning devices has been constructed. The devices are designed to block external lights and have user interface to guide hand posture during scanning. After hands are scanned, hand contour is extracted using binary image processing, noise elimination and outline tracing. And then, 19 hand landmarks are automatically detected using an automatic hand landmark detection algorithm based on geometric feature analysis. Then, automatic hand measurement program is executed based on the automatically extracted landmarks and measurement algorithms. The automatic hand measurement algorithms have been developed for 18 hand measurements required for custom-made glove pattern making. The program has been coded using the C++ programming language. We have implemented experiments to demonstrate the validity of the system using 11 subjects (8 males, 3 females) by comparing automatic 2D scan measurements with manual measurements. The result shows that the automatic 2D scan measurements are acceptable in the customized glove making industry. Our evaluation results confirm its effectiveness and robustness.

Three‐Dimensional Automatic Measurement Extraction Algorithms for Neck‐base Part of Females in Their Twenties (20대 여성의 목밑둘레 부위에 대한 3차원 자동 측정 알고리즘)

  • Hwang, Keun-Young;Nam, Yun-Ja;Park, Jae-Kyung
    • Journal of the Ergonomics Society of Korea
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    • v.24 no.2
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    • pp.35-43
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    • 2005
  • The purpose of this study is to suggest computer assisted neck-base's landmark identification algorithms and measurement extraction methods from three-dimensional human scan data. So we developed the algorithms for automatic identification of landmarks related to the neck-base types. The subjects were 58 women $18{\sim}24$ years of age. Their body were measured directly and indirectly by using camera and three-dimensional body scanner. They were measured during the months of October in 2001. Based on the characters of classified neck-base types, algorithms for the automatic identification of landmarks and methods of automatic measurement are developed. The three-dimensional automatic measuring program is made by $C^{++}$ language. Using this program, 4 landmarks are identified and 6 items are measured. In the verifying the precision of automatic measurement, the height measurements(cervicale, side neck point, front neck point) were relatively accurate, but neck-base width measurement was measured wide.

A Study on the Selection of Measurement Point for Automatic Environmental Noise Measurement System (환경소음자동측정망의 측정지점 선정에 관한 연구)

  • Lim, J.S.;Lee, B.C.;Jeong, D.J.;Lee, M.H.;Yang, K.H.;Oh, Y.S.
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.11a
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    • pp.442-445
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    • 2007
  • A noise reduction policy can be more effectively made when automatic environmental noise measurement system is set up. However, the local characteristic of noise pollution requires a lot of measurement points. This study considers that automatic environmental noise measurement system connects with automatic air pollution measurement system and noise map. The measurement points of traffic volume by the National Police Agency and the Ministry of Construction and Transportation are investigated to use at drawing the road traffic noise map. Finally, the effective application method of the environmental noise measurement vehicle is discussed.

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A Study on the Measurement Methods of Plastic Strain Ratio in Automotive sheet steel (자동차용 강판의 소성변형비 측정 방법 연구)

  • 김인수;김인수
    • Proceedings of the Korean Society for Technology of Plasticity Conference
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    • 1996.10a
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    • pp.85-92
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    • 1996
  • The Measurement method of the plastic strain ratio is various in Automotive sheet steel. In this paper, the measurement of the plastic strain are used two different methods, ASTM E 517 method and the automatic strain measurement tensile specimen during the tensile test, and compared the plastic strain ratios from the two methods. The experimental results showed that the measured plastic strain ratios from the automatic strain measurement method are coincide with that from the ASTM E 517 standard measurement in various specimens. Therefore, automatic strain measurement method by two extensometers shows good accuracy. Also, the strain dependance of plastic strain ratios could be recorded by the computer continuously and anisotropy of the strength coefficient, K, and strain hardening exponent, n ,could be compared with each direction automatically through the use of automatic strain measurement system.

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A Study of Health & Disaster Monitoring Measurement using Ubiquitous Active Communication Digital Datalogger System for Railway Structures (유비쿼터스 기반 통신의 철도구조물에 대한 재난감지용 능동형 데이터로거 시스템 연구)

  • Lee, Seong-Won
    • Proceedings of the KSR Conference
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    • 2011.05a
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    • pp.470-475
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    • 2011
  • The objective of this study is the developement health & disaster monitoring measurement using ubiquitous active communication digital datalogger system for monitoring measurement of railway construction sites. For the replacement of current passive data communication, ubiquitous active communication digital datalogger system is studied for the first time with in a country. Therefore data communication method and analyzing program of automatic measurement data is developed for the global positioning automatic digital datalogger system. The results of this study will be using both real time automatic monitoring measurement and health & disaster monitoring measurement of railway structures.

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A Study of Monitoring Measurement using Global Positioning Digital Datalogger System for Railway Structures (GPS를 내장한 위치추적 데이터로거 시스템의 철도 계측 적용성 연구)

  • Lee, Seong-Won
    • Proceedings of the KSR Conference
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    • 2010.06a
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    • pp.2002-2007
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    • 2010
  • The objective of this study is the developement monitoring measurement using global positioning digital datalogger system for monitoring measurement of railway construction sites. For the replacement of current passive data communication, Global positioning digital datalogger system using active communication is studied for the first time with in a country. Therefore data communication method and analyzing program of automatic measurement data is developed for the global positioning automatic digital datalogger system. The results of this study will be using real time automatic monitoring measurement of railway structures.

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A Study on Weld Bead Profile Measurement System for Use in Automatic Weld Bead Removal System

  • Lee, Jeong-Woo;Lee, Eun-Hyun
    • 제어로봇시스템학회:학술대회논문집
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    • 1999.10a
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    • pp.194-197
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    • 1999
  • Automatic weld bead removal system is consisted of bead removal tool, bead profile measurement system and tool motion control system. In this paper, design of weld bead profile measurement system which is used for automatic weld bead removal system is described. The system measures the weld bead position, normal vector of the auto-body and weld bead profile. The optical sensor with structured laser beam is used as a sensor and comparison of the sensor that can be used for this purpose is discussed in detail. The measurement process and the related software developed for this purpose are also described. A median filter, average filter and long line filters are used and their effects in bead profile measurement are discussed. The measurement system is integrated into automatic bead removal system and is used to remove weld bead in rear pillar of automotive body. The whole system operates well in automotive body assembly line and thus the system is proved to be good for this purpose.

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Diagnosis Accuracy Rate Comparative Study of Each Sasang Constitutions and Sex Distinction by Body Measurement Method between 3D Body Measuring Instrument and Hand-operating (3D체형측정기와 수동측정 방법간의 사상체질별 ${\cdot}$ 성별 진단정확률 비교연구)

  • Kwon, Suk-Dong;Sul, Yu-Kyung;Lee, Eui-Ju;Kim, Kyu-Kon;Kim, Jong-Won
    • Journal of Sasang Constitutional Medicine
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    • v.19 no.1
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    • pp.60-77
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    • 2007
  • 1. Objectives This is the comparative study with hand-operated measurement method and Automatic measurement method, in order to convert the automatic measurement method. 2. Methods We measured the body of patients(hand-operated Width 5 Places and hand-operated circumference 8 place,Automatic Width 5 and automatic circumference 8 place by 3D body measuring instrument) and analyzed the anthropometric data divding into sex&age. 362 patient's data are used in the analysis. 3. Results and Conclusions 1) 1th circumference variable which standing was not a sasang constitutional difference. 2) Diagnostic accuracy rate of the body measurement was 50-80%. 3) Diagnostic accuracy rate of man is higher than Diagnostic accuracy rate of women 4) Diagnostic accuracy rate of Automatic & hand-operated measuring was not a big difference.

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Automatic Measurement of Microbial Growth in Snake-Flask Culture using an Economic and Automated flow injection Analysis Apparatus (경제적인 자동화 FIA 장치를 이용한 진탕플라스크 배양액의 미생물 증식도의 자동측정)

  • 이형춘
    • KSBB Journal
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    • v.19 no.3
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    • pp.241-244
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    • 2004
  • An automated flow injection analysis apparatus manufactured economically was used in the automatic measurement of E. col growth in shake-flask culture of nutrient broth. The detailed measurement of whole growth was possible at intervals of 10 minutes by the automatic measurement system which adopted the sterilized nutrient broth as a carrier solution. Using distilled water as a carrier solution showed less accurate results than nutrient broth.