• 한국지능시스템학회:학술대회논문집
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• 한국퍼지및지능시스템학회 2003년도 ISIS 2003
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• pp.500-503
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• 2003

The navigation problem of robot is one of the main themes to deal with conficts or interferences between obstacles and the robot itself In this case, while the robot avoids obstacles on the space, the passage route should be determined efficiently. In order to solve problems above, we have come up with the distance field space medel (DFM) and then, under known environment, we have presented the distance field A algorithm for passage route path search. In this research, the method of performing the 3-dimensional passage route path search of robot under unknown environment is proposed. It is shown that the authors can build the distance search model the does not need space division by taking into account of sensor information to a distance field space model, and constructing this information as virtual obstacle information.

• 한국컴퓨터정보학회논문지
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• 제20권8호
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• pp.93-104
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• 2015

In this paper, the design of intelligent_advertisement_operation system(IAdOS) based on user's feedback is proposed for mobile environments. The proposed system stores the advertising contents created by the advertising provider and recommends the personalized advertising contents by analyzing the context information, and then feedback information of the advertisements. Since the proposed system which can recommends provide the smart advertisement contents based on personal preference, it is expected to contribute the new service model development of in the field of advertising market.

• 전자공학회논문지 IE
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• 제47권1호
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• pp.12-21
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• 2010

본 논문에서는 센서 네트워크를 이용하여 로봇 자신의 위치를 인식할 수 있는 위치인식 시스템을 제안하였다. 그리고 센서 네트워크에서 얻은 정보와 사용자의 운행 정보를 이용하여 사용자의 선호도 및 성향과 주변의 환경 상태를 판단하여 사용자에게 적합한 경로를 추천하는 지능형 네비게이션 시스템을 제안하였다. 이 시스템은 소프트 컴퓨팅 기법을 사용하여 인간의 선호도와 성향을 학습 및 추론하였다. 그리고 사용자와 모바일 로봇을 중계자 역할을 담당하고 휴대가 가능한 지능형 보조 모듈(IAM)을 정의하고 제안하였다. 마지막으로 제안한 알고리즘을 시뮬레이션을 통해 검증하였다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제7권2호
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• pp.154-158
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• 2007

As the technology developed, the system is being developed as the structure that is adapted to the intelligent environment. Therefore, the existing situation information system couldn't provide satisfactory service to the user as it provides service only by the information which it received from the sensor. This paper analyzed the problems of the existing user intention awareness system and suggested user intention awareness system to provide a stable and efficient service that fits to the intention of the user compensating this. This paper has collected the behavior data based on the scenario of the sequential behavior course of the user that occurs at breakfast time in the kitchen which is the home domain environment thai is closely related to our lives. This scenario course also showed the flow that the goal intentional user intention awareness system acted that it suggested, and showed the sequential course processing the user behavior data by tables and charts.

• JSTS:Journal of Semiconductor Technology and Science
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• 제14권6호
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• pp.750-754
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• 2014

Emulations of memristor-family elements are very important, since their physical realizations are very difficult to achieve with recent technologies. Although some previous studies succeeded in designing memristor and memcapacitor emulators, no significant contribution towards meminductor emulator has been presented so far. The implementation of a meminductor emulator is very important, since real meminductors are not expected to appear in near future. We designed the first meminductor emulator whose inductance can be varied by an external current source without employing any memrisitve system. The principle of our architecture and its feasibility have been verified using SPICE simulation.

• 대한음성학회:학술대회논문집
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• 대한음성학회 2005년도 추계 학술대회 발표논문집
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• pp.117-120
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• 2005

This paper suggests an algorithm that can estimate the direction of the sound source in realtime. Our intelligent service robot, WEVER, is used to implement the proposed method at the home environment. The algorithm uses the time difference and sound intensity information among the recorded sound source by four microphones. Also, to deal with noise of robot itself, the kalman filter is implemented. The proposed method takes shorter execution time than that of an existing algorithm to fit the real-time service robot. The result shows relatively small error within the range of ${\pm}$ 7 degree.

• Journal of Platform Technology
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• 제6권4호
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• pp.3-10
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• 2018

A projection-based active information display system was proposed. The proposed system is based on Intelligent Space and a steerable projector mounted mobile robot which is called Ubiquitous Display (UD). In order to transfer visual information for a human in the Intelligent Space, the UD projects a certain shape of an image with a fixed size. Due to redundancy of degree of freedom (DOF), there are lots of situations to project a same shape and size of the image on a surface. In this paper, we describe a method to determine a goal posture of the UD. Here, the goal posture is the most efficient position and orientation of the UD so as to project visual information and it is determined by the Intelligent Space. To verify the proposed method, simulation and demonstration are carried out.

• 제어로봇시스템학회논문지
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• 제17권6호
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• pp.539-545
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• 2011

This paper describes an intelligent service robot system for managing a store in an unmanned environment. The robot can be a good replacement for humans because it is possible to work all day and to remember lots of information. We design a system architecture for configuring many intelligent functions of intelligent service robot system which consists of four layers; a User Interaction Layer, a Behavior Scheduling Layer, a Intelligent Module Layer, and a Hardware Layer. We develop an intelligent service robot 'Part Timer' based on the designed system architecture. The 'Part Timer' has many intelligent function modules such as face detection-recognition-tracking module, speech recognition module, navigation module, manipulator module, appliance control module, etc. The 'Part Timer' is possible to answer the phone and this function gives convenient interface to users.

• 한국컴퓨터정보학회논문지
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• 제18권8호
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• pp.33-41
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• 2013

최근 지능형자동차 기술은 IT와 융합되어 새로운 첨단 영상미디어 응용기술로 발전하며, 오픈소스 기반의 안드로이드를 탑제한 스마트폰 응용기술과 지능형자동차 개발이라는 새로운 패러다임으로 많은 연구개발이 이루어지고 있다. 안드로이드 기반의 지능형자동차 응용 기술은 이동수단의 한계를 넘어 다양한 멀티미디어 중심의 집합기술로 진화하고 있으며, 이러한 분산 환경에서 개발되어 있는 각각의 멀티미디어 플랫폼서비스와 애플리케이션이 개발되고 있음에 따라 다양한 서비스 기술을 통한 휴대 단말장치기술이 절대적으로 요구되고 있다. 본 논문에서는 안드로이드 기반의 지능형 자동차 전용 미들웨어 설계를 통하여 단일형 시스템 스펙에 맞춰 SVC Codec과 실시간 동영상, 그래픽처리등 지능형자동차 미들웨어 SoC 설계를 통해 응용 연구를 실험 하였으며, 오픈플랫폼에서 제공되는 각종 단말서비스 기능들을 SoC 기반으로 새롭게 설계하고 표준화된 인터페이스 분석기법을 본 연구에서 실험을 통하여 입증하였다.

• 한국정보과학회:학술대회논문집
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• 한국정보과학회 2007년도 한국컴퓨터종합학술대회논문집 Vol.34 No.1 (B)
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• pp.21-26
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• 2007

HITSP(Healthcare Information Technology Standards Panel)은 헬스 케어 관련 산업의 상호 운용성을 위해 일반적으로 수용되고 유용한 표준들을 선별하여 표준 세트를 제공하는 것을 목적으로 한다. HITSP에서는 평생전자건강진료정보(EHR, Electronic Health Record)의 활성화를 위해 첫 번째 해결해야 할 영역으로 검사실 결과 정보 교류를 정하였다. 이에 본 논문에서는 검사실 결과 정보 교류를 위한 방법으로 HITSP에서 제시하는 HL7 버전 2.x 메시지와 CDA 방법 중 인증(authentication) 처리가 가능하고 영속성(persistence)이 있는 CDA 방법을 선택하였다. 또한 CDA를 작성하고 처리하는 방법을 제시하고, 더 나아가 평생전자건강진료정보(EHR)를 위해 CDA를 적용하여 검사실 결과 정보를 교류하여 보았다. 이에 병원과 EHR 시스템의 상호 운용성이 높아져 진료 과정의 효율성을 높일 수 있었고 환자와 의료진에게 양질의 검사 결과 정보를 제공할 수 있었다.