• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.622-627
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• 2003

The existing remote control system have some inherent disadvantage of direct control in the limit range. In some special cases, for example, a power apparatus, an unmanned factory, a nuclear factory, a security management system, the tele-operation is needed to control remote robot without limit space. This field is based on the Internet communication. Because the Internet is constructed all over the world. And it is possible that we control remote mobile robot in the long distance. In this paper, we developed a remote control system. This system is divided into two primary parts. These are local site and remote site. There are the moving robot and web server in the remote site and there is the robot control device in local site. The moving robot is moved by two stepper motors and the robot control device consists of SA-1100 micro controller and embedded Linux. And this controller is an embedded system. Public personal computer which is connected the Internet is used for the web server. The web server provides the mobile robot control interface program to the remote controller and captures the image for feedback information. In the whole system, a robot control device is connected with moving robot and web server through the Internet. So the operator can control the moving robot in the distance through the Internet.

• 제어로봇시스템학회논문지
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• 제19권6호
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• pp.520-526
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• 2013

This study presents the unit control of a PC (Personal Computer) program using multiple smartphones based on ad hoc communication. A design of the data packet that multiple smartphones send to a computer, and a framework that manages and controls the unit in a computer after analyzing the data packet, are proposed. As a result, multiple users are able to control their own units using their smartphones while seeing the monitor connected to a computer. In other words, multiple users can share the same game in a computer or control their units embedded in a system using their smartphones. An experimental result shows that a racing game in a PC can be realized by the proposed communication interface, where four iPhones are used to control their units in a computer. Thus, the proposed framework can be effectively used for unit control in a PC using multiple smartphones.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2017년도 추계학술발표대회
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• pp.789-791
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• 2017

음악은 매장의 분위기를 결정짓는 중요한 요소이다. 그러나 현재 대부분의 매장에서는 음악 스트리밍 사이트에서 추천해주는 플레이리스트 혹은 개인의 취향에 의한 선곡이 이루어지고 있다. 이때 매장의 분위기와 적합하지 않는 곡이 선곡되는 경우가 발생하며 고객들로 하여금 불만스러운 경험을 제공할 수 있는 여지가 있다. 이에 본 연구는 기존의 음악 선곡 시스템을 고객 중심적으로 전환하고자 한다. 고객의 감정 분석, 상황 분석과 머신 러닝을 적용하여 현재 매장의 분위기와 어울리는 음악이 선곡되고 재생될 수 있도록 하는 것을 목표로 하고 있다.

• 한국정보처리학회:학술대회논문집
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• 한국정보처리학회 2000년도 제13회 춘계학술대회 및 임시총회 학술발표 논문집
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• pp.71-76
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• 2000

일반 사용자들의 데이터베이스 사용 증가와 부정확한 질의를 처리할 수 있는 데이터베이스의 요구가 증가하면서 기존의 관계형 데이터베이스에 퍼지이론을 적용한 퍼지 데이터베이스에 대한 연구가 진행되고 있다. 본 논문에서는 인적사항 관련 데이터베이스에 대하여 이러한 퍼지 데이터베이스인 퍼지질의 시스템의 개발을 위해서 아직 일반화 되지 않은 FSQL을 정의하였으며 meta DB의 분류와 그에 따른 소속함수에 대하여 정의하였다. 또한 정의된 데이터를 이용하여 내부에서 필요로 하는 FSQL 처리 부분을 설계하였다.

• 한국안전학회지
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• 제30권2호
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• pp.77-82
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• 2015

When accidents that relate to a large numbers of people occur, such as disasters involving group tours by ship or aircraft, or large-scale chemical leakages, it is very important to know the personal identification of victims and to determine their locations and status. It is true that there will be serious damage or injury to people who engaged especially when information does not transfer properly or people get inaccurate one. In this study, therefore, we analysed the disaster response management system for rescued people of the Sewo ferry sinking accident. Based on the analysis we proposed to improve the real-time disaster management system with ICT(Information & Communication Technology).

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 D
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• pp.2553-2555
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• 2002

In this paper, we designed the monitoring system by one personal computer which supervise multiple data of multiple system based on the serial communication. This multiple data of multiple system has the merit of the effective data acquisition.

• 정보학연구
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• 제6권3호
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• pp.115-135
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• 2003

오늘날 국내 제조업은 상당히 어려운 환경에 취해 있다. 높은 임금과 물류비용의 과다, 임대료의 상승등 원가요인의 상승으로 인하여 경쟁력을 잃어가고 있는 환경 속에서 선진경영기법을 도입하여 원가를 절감시키고 고객과의 관계강화를 함으로써 기업의 지속적인 매출을 신장시키고 영업비용을 절감시킴으로써 기업의 경쟁력을 강화시켜야 한다. 이의 효율화를 위한 방법으로 CRM에 대하여 논의하여 보고자 한다.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1939_1941
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• 2009

The modulation quality of the RF transmitter in a wireless communication system usually affects system performance and it mostly depends on both a nonlinearity and a distortion, from the intermodulation products and the I/Q mismatch such as I/Q amplitude error and a local phase error, respectively. This paper focused on how much the error vector magnitude(EVM) which describes the modulation accuracy changes according to the variation of the I/Q mismatch components at I/Q modulator. For this work, the equation for the EVM including the I/Q mismatch components can be induced and calculated in accordance with the variation of the I/Q mismatch components. Consequently, the effect of I/Q mismatch components on the EVM, which is required in the transmitter specification of Personal Area Network, can be clearly analyzed.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2000년도 제15차 학술회의논문집
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• pp.439-439
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• 2000

In this paper, the relationship among the vertical acceleration, measuring points and walking patterns is analyzed. To measure acceleration, the acceleration measurement unit and communication board is constructed. It uses MEMS accelerometer ADXL-202 that detects 2-axis acceleration simultaneously. It is shown by the experiment test that the walking pattern is recognized and walking step is detected at easy when acceleration measurement unit is mounted on leg.. This results can be directly utilized in designing the personal navigation system with low-cost inertial sensor.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2005년도 공동추계학술대회
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• pp.157-162
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• 2005

Seamlessness is the Keyword of U-Commerce Which may be defined as the commercial interaction among providers, consumers, products, and services, enabled and supported especially by the real-world seamless communication of each entity and object's digital information. However, the possibility of the seamless transactions increases the privacy risk of the entities involved. Therefore, the core issue of U-Commerce is how to promote seamless transactions while protecting the privacy. for the seamlessness, the role of incentive-emphasized business model is important since the seamlessness makes clear which economic entities contribute to a commercial transaction. Economic entities will reject the seamless transactions unless the sufficient incentives are given to them. In order to consider the privacy issue, we suggest an alternative U-Commerce architecture based on Hybrid P2P Model and Personal Information Base.