• 한국CDE학회논문집
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• 제12권3호
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• pp.171-181
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• 2007

Ubiquitous computing is a vision of our future computing lifestyle in which computer systems seamlessly integrate into our everyday lives, providing services and information in anywhere and anytime fashion. Augmented reality (AR) can naturally complement ubiquitous computing by providing an intuitive and collaborative visualization and simulation interface to a three-dimensional information space embedded within physical reality. This paper presents a service framework and its applications for providing context-aware u-car maintenance services using augmented reality, which can support a rich set of ubiquitous services and collaboration. It realizes bi-augmentation between physical and virtual spaces using augmented reality. It also offers a context processing module to acquire, interpret and disseminate context information. In particular, the context processing module considers user's preferences and security profile for providing private and customer-oriented services. The prototype system has been implemented to support 3D animation, TTS (Text-to-Speech), augmented manual, annotation, and pre- and post-augmentation services in ubiquitous car service environments.

• 한국의료질향상학회지
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• 제16권1호
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• pp.65-76
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• 2010

문제: 퇴원 환자의 문의 전화가 많아지면서 병동 간호사는 이 문의에 응하는 일로 업무량 과다, 전화 상담에 대한 자신감 저하 및 부담 등을 느끼고 있었다. 부적절한 전화문의 관리는 환자와 간호사 모두에게 시간 소모 및 만족도 저하 등의 부정적인 경험을 남길 수 있다. 목적: 전화문의 응대 매뉴얼 구축 및 활용으로 병동 간호사 및 퇴원 환자의 만족도를 향상시키고자 한다. 의료기관: 서울시 종로구에 소재한 대학병원. 질 향상 활동: 표준화된 전화문의 응대 매뉴얼을 개발하였다. 또한 간호사의 업무 효율성 및 지식 향상을 위해 간호사 대상 매뉴얼을 교육하여 실무에서 활용하기 쉽도록 하였다. 개선효과: 표준화된 전화문의 응대 매뉴얼을 안과 병동 간호사와 전보자 및 신규 간호사 교육에 활용할 수 있었다. 간호사의 전화문의 응대 관련 직무 만족도가 향상되었다. 환자 역시 표준화된 매뉴얼에 따라 일치되고 일관성 있는 정확한 정보를 제공받게 되어 환자의 만족도와 이해도가 증가할 것이다.

• 제어로봇시스템학회논문지
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• 제15권9호
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• pp.906-908
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• 2009

AVI (Automatic Vision Inspection) systems automatically detect defect features and measure their sizes via camera vision. It is important to predict the performance of an AVI to meet customer's specification in advance. Also the prediction can indicate the level of current performance of an AVI system. In this paper, we propose a statistical method for prediction of false alarm rate regarding inconsistency of defect size measurement process. For this purpose, only simple experiments are needed to measure the defect sizes for certain number of times. The statistical features from the experiment are utilized in the prediction process. Therefore, the proposed method is swift and easy to implement and use. The experiment shows a close prediction compared to manual inspection results.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2003년도 하계학술대회 논문집 D
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• pp.2020-2021
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• 2003

Korea Research Institute of Standards and Science (KRISS) has developed a Web-based, remote, Internet calibration system to calibrate the Fluke 5700A/5720A calibrator using a transportable standard: specifically, multifunction transfer standard 4950. Although the uncertainty for the Internet calibration is up to two times larger than that using conventional manual calibration, it has many advantages: no need to transport the customer equipment, a reduction in the calibration service time, a directly enforced traceability to the national standards, convenience, and ease of use for the customers.

• Journal of Biosystems Engineering
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• 제31권6호
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• pp.514-523
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• 2006

Production of green pepper has been increased due to customer's preference and a projected ten-year boom in the industry in Korea. This study was carried out to develop an automatic grading and sorting system for green pepper using machine vision. The system consisted of a feeding mechanism, segregation section, an image inspection chamber, image processing section, system control section, grading section, and discharging section. Green peppers were separated and transported using a bowl feeder with a vibrator and a belt conveyor, respectively. Images were taken using color CCD cameras and a color frame grabber. An on-line grading algorithm was developed using Visual C/C++. The green peppers could be graded into four classes by activating air nozzles located at the discharging section. Length and curvature of each green pepper were measured while removing a stem of it. The first derivative of thickness profile was used to remove a stem area of segmented image of the pepper. While pepper is moving at 0.45 m/s, the accuracy of grading sorting for large, medium and small pepper are 86.0%, 81.3% and 90.6% respectively. Sorting performance was 121 kg/hour, and about five times better than manual sorting. The developed system was also economically feasible to grade and sort green peppers showing the cost about 40% lower than that of manual operations.

• 정보처리학회논문지D
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• 제11D권5호
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• pp.1063-1072
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• 2004

ASP(Application Service Provider) 사업에서 응용프로그램이 데이터베이스를 사용해야 하고 이 데이터베이스가 ASP 고객의 데이터베이스로부터 일련의 데이터를 제공받아야 하는 경우가 점점 더 증가하고 있다. 이를 위한 방법으로 엑셀(EXCEL)과 같은 파일 형태가 이용되는데 고객의 데이터베이스로부터 수작업으로 추출되어진 데이터가 엑셀 파일로 ASP사업자에게 전달된다. 이는 다시 애플리케이션이 이용하는 데이터베이스의 테이터내로 수작업 처리되어 저장된다. 본 연구는 두 데이터베이스 연동 시에 이러한 엑셀 파일 등을 이용하여 발생하는 데이터 추출과 저장시의 데이터베이스 수작업 조작의 비효율성을 극복하는데 있다. 이 때 두 데이터베이스 상의 속성명은 상이한 경우를 일반적인 경우로 전제하였으며 또한 웹 상에서 두 데이터베이스의 연동 시에 피할 수 없는 고객 데이터베이스의 경로 정보를 ASP 사업자에게 노출을 피하도록 한다. 제안된 방법은 두 단계로 걸쳐 데이터 프로세싱이 이루어지는데 먼저, ASP 사이트로부터 다운로드받은 프로그램을 이용하여, 고객데이터베이스를 접속한 후 프로그램의 유저 인터페이스를 이용하여 용이하게 속성 매칭하고 속성치를 XML 파일 형태로 자동 추출하는 단계와 추출된 XML 파일을 웹 상에서 ASP 서버에 접속하여 전송하고 ASP 데이터베이스에 자동 저장하는 후처리 프로세싱 단계로 구성된다. 본 연구에서는 이러한 방법에 맞는 프로토타입 시스템을 구현하여 데이터베이스 연동의 타당성을 검증하였으며, 제안된 방법은 ASP 고객의 데이터베이스를 이용해야 하는 ASP사업의 활성화에 기여할 수 있다.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 1998년도 추계학술대회 논문집
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• pp.407-410
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• 1998

Configuration is a set of building block processes, a series of selection and combining parts or components which composes a whole thing. A whole thing could be such a configurable object as manufacturing product, network system, financial portfolio, system development plan, project team, etc. Configuration problem could happen during any phase of product life cycle: design, production, sales, installation, and maintenance. Configuration has long been one of cost and time consuming work, because only high salaried technical experts on product and components can do configuration. Rework for error adjustments of configurations at later process causes far much cost and time, so accurate configuration is required. Under the on-line electronic commerce environment, configuration problem solving becomes more important, because component-based sales should be done automatically on the merchant web site. Automated product search, order placement, order fulfillment and payment make that manual configuration is no longer feasible. Automated configuration means that all the constraints among components should be checked and confirmed by configuration engine automatically. In addition, technical constraints and customer preferences like price range and a specific function required should be considered. This paper gives an brief overview of configuration problems: characteristics, representation paradigms, and solving algorithms and introduce CRSP(Constraint and Rule Satisfaction Problem) method. CRSP method adopts both constraint and rule for configuration domain knowledge representation. A survey and analysis on web sites adopting configuration functions are provided. Future directions of configuration for EC is discussed in the three aspects: methodology itself, companies adopting configuration function, and electronic commerce industry.

• 한국소성가공학회:학술대회논문집
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• 한국소성가공학회 1999년도 제3회 압연심포지엄 논문집 압연기술의 미래개척 (Exploitation of Future Rolling Technologies)
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• pp.119-125
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• 1999

At Wire Rod Mill Plant, wire is made of the billet produced at continuous casting machine, or rolled bloom produced at billeting mill, and the product can be classified of wire of 5.5${\Phi}$ and bar in coil of 14∼42${\Phi}$ in diameter(bar in coil will be referred to as coil as below). At present, wire is produced at POSCO No.1, 2, 3 WRM, coil at garret line of No. 2 WRM. Head and tail of coil are properly cut and treated to scrap to fulfill the customer's satisfaction. This above cutting is done off line, and small size coil can be cut manually with clipper, large size coil with hydraulic cutter. Nowadays, it is being investigated to cut automatically in line with trimming shear after passing mill stand. At the moment, Because the coil produced at the garret line of No.2 WRM is hot 400∼600$^{\circ}C$ and trimming is done manually with cutter, there are always interference from manual operation or safety problem of bad working condition. Not only because of the diversity of the coil size 14∼42${\Phi}$ in diameter, but because of the rolling speed 2.5∼22m/sec, it is required to be equipped with several trimming shear. But this can be accomplished with only one shear installed proper place at this paper.

• 한국CDE학회논문집
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• 제20권4호
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• pp.375-384
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• 2015

Recently, there has been a gradual increase in the number of people who are interested in cycling, leading to an increasing number of cycling equipment consumers. However, many bicyclists get hurt because of their lack of knowledge about the right size of bicycle for their body. Although it is necessary for a rider to fit their bicycle to prevent injury, they reject a fitting service because of the long hours and high cost. In this study, we propose a bicycle fitting system that uses a depth camera to improve the limitations of existing manual fitting systems. With the defined formula, the system calculates the size of the bicycle using body image information extracted by a depth camera and visualizes a customized bicycle for a specific consumer. This system will not only save the customer time and money, but will prevent injury from the use of a bicycle that does not fit.

• 대한인간공학회:학술대회논문집
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• 대한인간공학회 1997년도 추계학술대회논문집
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• pp.249-259
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• 1997

As the gap between competing products narrows in terms of performance and quality, the product usability is rapidly becoming a new dimension of product design as the key to offering distinctive value to the customer. Because the user interface is important, not only for the user but also for the efficiency of te whole organiation, system designers require increasingly precise evaluation methods to determine how effective and usable human-product interface is. In this study a new methodology named usability analysis diagram(UAD), for evaluating usability of human-product interface systematically, was developed. UAD is a top-down flow diaagram of a human-product interaction, in ehichfour basic elements - perception, understanding, intellectual decision and action - were classified and then represented by a particular symbol for each. The usability of the product is assessed by the frequency of each symbol in a diagram which represents a sequence of cognitive and physical activities of users during the use of the product, and by the level of difficulty that is classif- ied in three levels in terms of easiness of perception, understanding and action. In order to test validity of the proposed UAD in a real situation, a case study was performed on two different cameras, automatic and manual, and their usability was successfully evaluated and compared.