• 대한전기학회:학술대회논문집
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• 대한전기학회 2005년도 학술대회 논문집 정보 및 제어부문
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• pp.70-72
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• 2005

The present paper designed a weight measuring instrumentation system in which data conversion and a series of signal processing were totally equipped. 16 loadcell are incoming sensors and each output of the loadcell was amplified and filtered for proper analog signal processing. Several measuring instrumentation OP amps and general purposed OP amps were used. 12 bits AID converters converted analog signals to digital bits and a PIC microprocessor controlled the 16 channels of loadcell. RF RS232 modules were used for wireless communication between the PIC microprocessor and an ethernet host for a remote sensor monitoring system development.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1992년도 한국자동제어학술회의논문집(국제학술편); KOEX, Seoul; 19-21 Oct. 1992
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• pp.624-629
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• 1992

This paper deals with the architecture of an information processing model for the human concept understanding required in constructing intelligent man-machine interfaces. The architecture employed is a parallel processing by networking. For this purpose, personal computers are interconnected by LAN and are, in their roles, divided into three levels. A concept has two aspects; i.e., language and image. In the present model, the system as the holistic whole of personal computers together with peripheral devices processes visual information in cognitive level, searching for feasible solutions from a variety of aspects. An image inputted through peripheral systems is categorized and matched with those ever experienced with the aid of that categorization, and thus an image is identified.

• 한국콘크리트학회:학술대회논문집
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• 한국콘크리트학회 1996년도 봄 학술발표회 논문집
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• pp.270-274
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• 1996

Until recently pre & post-processing of finite element model has been heavily relied on expensive graphic peripheral devices. But today, with the aid of inexpensive microcomputers, very effective pre & postprocessor graphics has been developed. In this study, Pre & Post processor(MASSPRE, MASSPOST) of prediction analysis of thermal stress in mass concrete structure is developed. The developed pre & post processors are raise to the efficiency in making input data for the main program and analysis of the results produced by the main program. This MASSPOST presents a stress contour graph, volume slice, time-temperature history graph, time-stress history graph, etc.

• 한국전기전자재료학회논문지
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• 제25권4호
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• pp.282-285
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• 2012

It is well known that Zinc Oxide (ZnO) is an attractive material for its various applications. ZnO has been mostly used as a transparent conducting oxide in liquid crystal displays, solar cells due to its advantages of low cost, high productivity, and excellent electrical conductivity. Notably, flexible-dye-sensitized solar cells (DSSCs) based on polyethylene terephthalate (PET) substrates require low temperature sintering processing conditions. Therefore, low temperature processing conditions have been strongly required for transparent conducting film applications. In this paper, we prepared low temperature-sintered ZnO ceramics employing Li as a sintering aid.

• 융합신호처리학회논문지
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• 제11권3호
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• pp.250-254
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• 2010

As the number of input and fuzzy set of a fuzzy system increase, the size of the rule base increases exponentially and becomes unmanageable (curse of dimensionality). In this paper, tree architectures of fuzzy controller (TAFC) is proposed to overcome the curse of dimensionality problem occurring in the design of fuzzy controller. TAFC is constructed with the aid of AND and OR fuzzy neurons. TAFC can guarantee reduced size of rule base with reasonable performance. For the development of TAFC, genetic algorithm constructs the binary tree structure by optimally selecting the nodes and leaves, and then random signal-based learning further refines the binary connections (two-step optimization). An inverted pendulum system is considered to verify the effectiveness of the proposed method by simulation.

• 대한전자공학회논문지
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• 제18권2호
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• pp.36-43
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• 1981

본 논문은 한글 인식에 있어서 문제점으로 되어 있는 조합문자에서의 자소추출 방법의 제안에 관한 것이다. 한글의 구성원리에 입각하여 자소의 단치정보와 Stroke의 방향성을 고려하여 Top-down 적으로 한글의 구조를 분석하고, 이에 따른 3단계 처리에 의하여 자소가 순차적으로 추출되는 과정을 보였다. 일상 활동에서 사용되고 있는 문자중, 677자에 대한 자소의 추출실험결과, 96 %의 추출률을 얻어, 본 방식의 유효성을 확인할 수 있었다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2019년도 춘계학술발표대회
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• pp.226-229
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• 2019

S/W, Coding 3d Print, Aduino, IoT 등은 4차 산업혁명 시대에 주요 산업 분야에서 공통으로 쓰이는 핵심 기술이다. 2018년도부터 코딩 교육 의무화가 되었으며, 4차 산업혁명 시대에 필요한 인재상인 창의 융합형 인재를 육성할 수 있는 교육이 더욱 필요한 때이다. 본 논문에서는 별자리 12궁에 대한 과학적 지식을 탐구하며 Coding, 3D Print, Aduino에 관한 지식을 교육하기 위한 시스템을 만들어 보았다. 메이커 교육을 융합한 창의 융합형 교구인 별 빛 교구와 별자리 무드 등을 제작하였으며, 이 2가지의 교구의 구성 및 교육 내용에 대해 기술하였다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2013년도 춘계학술발표대회
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• pp.501-503
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• 2013

This project presents a concept of mobile robots using prototypes, computing proposal oriented to embedded systems implementation. We implement our system using GPS module, Ultrasonic sensor(range sensors), H-bridge dual stepper control, DTMF(Dual-tone Multi-Frequency ) and LCD module. In this paper we construct a mechanical simple mobile robot model, which can measure the distance from obstacle with the aid of sensor and should able to control the speed of motor accordingly. Modules were interfaced with FPGA(Field Programmable Gate Array) controller for hardware implementation.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2013년도 춘계학술발표대회
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• pp.667-670
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• 2013

Noise is unwanted in high quality images, but it can aid image tampering. For example, noise can be intentionally added in image to conceal tampered regions or to create special visual effects. It may also be introduced unknowingly during camera imaging process, which makes the noise levels inconsistent in splicing images. In this paper, we present an image forgery detection method using a noise dependent watershed transformation. Image is segmented into objects for initial noise estimation by the watershed transformation, and different noise level in objects are estimated to obtain final decision result. Experimental results of the proposed method on natural images are presented.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2011년도 추계학술발표대회
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• pp.1092-1094
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• 2011

최근 폭발적인 스마트폰의 보급률 증가와 이에 따른 사용자 증가로 인해 스마트폰을 이용한 다양한 어플리케이션이 개발되어 사용자들에게 배포 되고 있다. 본 논문은 이러한 스마트폰을 활용하여 언제 발생할지 모르는 응급상황에 대해서 스마트폰 어플리케이션 사용자에게 각 상황에 따른 응급상황에 대한 대처 요령 및 처치 방법을 제공함으로써 긴박한 실제 응급상황에서도 신속하고 유연하게 초기 대응할 수 있도록 하였다. 또한 가까운 응급실 정보를 제공함으로써 빠르게 응급실로 연락 또는 이동할 수 있는 정보를 제공하여 2차 피해를 줄일 수 있는 어플리케이션을 구현하였다.