• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2008.08a
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• pp.165-168
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• 2008

이 논문에서는 멀티미디어 컴퓨터에 연결된 미디키보드를 사용하여 피아노 연주를 혼자서 배우고 연습할 수 있도록 하기 위한 지능형 교습 시스템을 개발하기 위하여, 시스템 구조 및 모듈별 기능과 기본적인 사용자 인터페이스를 설계하였다. 시스템의 구조는 미디 키보드의 실시간 연주 샘플링 모듈, 미디 데이타의 시퀀싱 모듈, 사운드 합성 모듈과 연결된 지능형 교습 시스템이 된다. 세분화된 모듈별 기능에서는 학습 콘텐츠, 학습자 모델, 진단 평가 모듈, 진도 관리 모듈, 등의 세부적인 기능 설계가 필요하다. 학습자 모델을 기반으로 진단 편가 및 진도 관리를 지능적으로 처리하기 위해서 CLIPS를 사용한 전문가시스템 접근을 사용한다. 컴퓨터 화면상의 악보 디스플레이, 실시간 연주 화면, 진단 평가 디스플레이를 위한 GUI 설계가 필요하다. 그리고, 향후 콘텐츠 구축 및 시스템 구현 시에 예상되는 문제점과 해결 방안을 논의한다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• v.8 no.3
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• pp.225-230
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• 2008

In this paper we embody a system that recognizes printed alphabet, numeral figures and symbols written on the keyboard for the recognition of English sentences. The image of the printed sentences is inputted and binarized, and the characters are separated by using histogram method that is the same as the existing character recognition method. During the abstraction of the individual characters, we classify one group that has not numerical information by the projection of the vertical center of the character. In case of another group that has the longer width than the height, we assort them by normalizing the width. The other group normalizes the height of the images. With the reverse application of the basic principle of the Japanese Puzzle to a normalized character image, the proposed system classifies and recognizes the printed numeral figures, symbols and characters, consequently we meet with good result.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.739-742
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• 2011

This paper describes system design and realization to the ubiquitous intelligent lesson management. This system includes students management by utilizing RFID and web-cam, personal security certification by fingerprint recognition, keyboard locking of PC by hooking technology, personal data management by cloud system, internet block access by a packet monitoring. We have design and realize this system, In the future, we will applicate our system to the classes using computer.

• Journal of the Korean Society for Precision Engineering
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• v.22 no.12 s.177
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• pp.77-86
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• 2005

This paper is about the development of Automatic FPC(flexible printed circuit) punching instrument for the improvement of working condition and cost saving. FPC is used to detect the contact position of keyboard and button like a cellular phone. Depending on the quality of the printed ink and position of reference punching point to the FPC, the resistance and current are varied to the malfunctioning values. The size of reference punching point is 2mm and the above. Because the punching operation is done manually, The punching accuracy is varied with operator's condition. Recently, The punching accuracy has deteriorated severely to the 2mm punching reference hall so that assembly of the K/B has hardly done. To improve this manual punching operation to the FPC, automatic FPC punching system is introduced. Precise mechanical parts like a 5-step stepping motor and ball screw mechanism are designed and tested and low cost PC camera is used fur the sake of cost down instead of using high quality vision systems for the factory automation. Test algorithms and programs showed good results to the designed automatic punching system and led to the increasement of productivity and huge cost down to law material like FPC by avoiding bad quality.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2005.10a
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• pp.976-979
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• 2005

This paper is about the development of automatic FPC(flexible printed circuit) punching instrument for the improvement of working condition and cost saving. FPC is used to detect the contact position of keyboard and button like a cellular phone. Depending on the quality of the printed ink and position of reference punching point to the FPC, the resistance and current are varied to the malfunctioning values. The size of reference punching point is 2mm and the above. Because the punching operation Is done manually, the accuracy of the punching degree is varied with operator's condition. To improve this manual punch ing operation to the FPC, automatic FPC punching system is introduced. Test algorithms and programs showed good results to the designed automatic punching system and led to the increasement of productivity and huge cost down to law material like FPC by avoiding bad quality.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.40 no.2
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• pp.363-365
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• 2015

Recently, Smart Phone is widely used and replaces with the work of computer system. So, to overcome the inconveniences of Smart-Phone small screen size, a mirroring the screen of Smart Phone to TV or Computer monitor is studied to show a larger screen to the users. In this study, we implemented a screen mirroring and efficient user interface(computer mouse and keyboard) system with Bluetooth and USB host functions for a smart phone using standard 5 pin(MHL compatible) connector output to HDMI Monitor. Dock-style and Monitor embedded system are designed respectively.

• Proceedings of the Korean Institute of Intelligent Systems Conference
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• 2008.04a
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• pp.400-402
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• 2008

The human-computer interaction technology (HCI) that has played an important role in the exchange of information between human being and computer belongs to a key field for information technology. Recently, control studies through which robots and control devices are controlled by using the movements of a person's body or hands without using conventional input devices such as keyboard and mouse, have been going only in diverse aspects, and their importance has been steadily increasing. This study is proposing a recognition method of user's gestures by applying measurements from an acceleration sensor to the PCA algorithm.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.6 no.1
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• pp.29-35
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• 2012

Most Augmentative and Alternative Communication(AAC) use exclusive equipment or studied desktop, tablet PC based windows. Besides, the preceding study offers proper noun dictionary so, henceforward study has problem to innumerable proper noun processing. This paper suggests a method of proper noun processing using a mobile smart equipment. And via the button with virtual keyboard input method and the errors that can occur is also proposing a complementary way. AAC system to check availability for application on Android has been implemented. Experimental results, depending on user location and selection of proper nouns in the around could produce a sentence is derived.

• Proceedings of the Korean Information Science Society Conference
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• 2011.06c
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• pp.405-408
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• 2011

In this paper, we propose a robot remote control system based on mouth tracking. The main idea behind the work is to help disabled people who cannot operate a joystick or keyboard to control a robot with their hands. The mouth detection method in this paper is mainly based on the Adaboost feature detection approach. By using the proposed new Haar-like features for detecting the corner of mouth, the speed and accuracy of detection are improved. Combined with the Kalman filter, a continuous and accurate mouth tracking has been achieved. Meanwhile, the gripping commands of the robot manipulator were also achieved by the recognition of the user.s mouth shape, such as 'pout mouth' or 'grin mouth'. To assess the validity of the method, a mouth detection experiment and a robot cargo transport experiment were applied. The result indicated that the system can realize a quick and accurate mouse tracking; and the operation of the robot worked successfully in moving and bringing back items.

• Journal of Welding and Joining
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• v.15 no.4
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• pp.11-23
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• 1997

시험편을 용접할때 사용한 용접 변수의 기록서인 PQR(Procedure Qualification Record)은, 용접구조물을 제작하는 제조 업체에서, 수시로 PQ Test를 수행하여 작성되고 있으며, 가장 기본적이고 중요한 용접 데이터이기 때문에 소중하게 관리되고 있다. 그리고, PQR의 수량이 많아지면, 관리에 많은 어려움이 따르고, 필요 한 데이터를 찾는데 많은 시간이 소요될뿐만 아니라, 정확한 데이터를 찾아내는 것도 쉽지가 않다. 따라서, PQR 관리 시스템을 개발하여, PQR의 데이터를 쉽게 활용하고, 자료 검색을 간단하게 할 수 있으며, PQR의 작성을 간편하게 하고자 PQR 관리 시스템 을 개발 하였다. 본 시스템의 특징은 PQR 양식을 새롭게 표준화하여 출력할 수 있게 하였고, PQR 작성을 처음 시작하는 사용자도 쉽게 배워 업무에 적용할 수 있다. 이는 용접 전문가의 노하우가 데이터 베이스에 내재되어 있어 서로 관련된 정보의 반복 입력이 적으며, 한 개의 데이터로 다른 데이터가 자동 결정되고, 데이터의 입력방식 이 키인(Keyboard Input)이 아닌 리스트(List)에서 선택하는 방식으로 하였다. 또한, 용접부 개선 형상의 Outline을 제공하여 수작업의 부담을 줄였으며, 검색의 기능이 강력하여 검색조건 선정에 제한이 없다. 그러므로, 본 시스템은 전반적으로 용접전문 가의 지식을 프로그래밍한 지능성, 전문성, 복합성을 가진 시스템이라 할 수 있다. 본 고에서는 ASME CODE에 따라서 작성되는 PQR의 관리 시스템을 소개하고자 한다.