• Journal of Institute of Control, Robotics and Systems
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• v.10 no.5
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• pp.428-433
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• 2004

In this paper, we developed a multi-protocol controller based on SoC and embedded Linux and applied it to integrate with BAS in a unified TCP/IP socket communication. The multi-protocol controller integrates control networks of RS-485 and LonWorks devices to BAS. The system consists of three-tier architecture, such as a BAS, a multi-protocol converter, and control devices. By using UML, we modeled the system architecture. In order to show the feasibility of system architecture, it was applied to a small BAS system. The experimental results show that the multi-protocol controller using embedded Linux is flexible and effective way to develop a building control system.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.10a
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• pp.269-272
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• 2004

The target of this paper is the development of Web-based monitoring & control system which is for effective and economic management of mold manufacturing process. This system has three module; G-code Control, Monitoring Module and Result analysis module. Also, as the environment of development is based on internet, this system which is possible to the remote site management of manufacturing process works on Web. To be possible to control the manufacturing monitoring by client, each module is made ActiveX control and is based on socket communication. This system makes the foundation which is possible to manage the mold manufacturing process efficiently from remote site by matching real-time monitoring with manufacturing process in factory using G-code control and displaying the result of manufacturing using Ch-CGI.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.10a
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• pp.809-813
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• 2004

In this paper, we developed a network camera for CMOS camera module inspection. The design, implementation details including embedded linux porting and CPLD logics, and performance of network camera are described. The network camera consists of SoC(S3C4530A), CPLD and CMOS image sensor. In order to image data of CMOS image sensor we designed capture logics on CPLD by using VHDL program. Embedded Linux such as uClinux is performed on the network camera to utilize development environment and TCP/IP protocol specification. The application is based on socket communication between GUI on PC and Embedded Linux based network camera. When JPEG compression is applied, the transmission speed was improved enough for this system to be used for an alternative of expensive CCTV or remote monitoring system in a power plant and uninhabited places.

• The Journal of Korea Robotics Society
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• v.5 no.1
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• pp.64-69
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• 2010

In this paper, we propose remote navigation control for intelligent robot using particle swarm optimization(PSO). The proposed system consists of interfaces for intelligent robot navigation and user interface in order to control the intelligent robot remotely. And communication interfaces using TCP/IP socket is used. To do this, we first design the fuzzy navigation controller based on expert's knowledge for intelligent robot navigation. At this time, we use the PSO algorithm in order to identify the membership functions of fuzzy control rules. And then, we propose the remote system in order to navigate the robot remotely. Finally, we show the effectiveness and feasibility of the developed controller and remote system through some experiments.

• Proceedings of the Korean Information Science Society Conference
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• 2012.06d
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• pp.97-99
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• 2012

최근 스마트폰, 스마트 태블릿 등의 모바일 단말이 급속도로 보급됨에 따라 모바일-클라우드 컴퓨팅 환경이 대중화 되는 추세다. 이에 따라, REST 웹 서비스 Open API의 활용 역시 점차 확대되는 추세이다. REST 웹서비스 Open API는 서버에서 제공하는 기능을 스마트폰 애플리케이션에 추가함으로써 기능을 확장하기 위해 사용하는 경우가 대부분이다. 그러나, 본 논문에서는 웹 서비스 Open API의 사용목적을 일반적인 모바일-클라우드(스마트폰-서버, 클라이언트-서버) 환경으로 확대하는 방법을 제안한다. 본 논문에서는 파이(pi)값 계산을 병렬적으로 처리하는 알고리즘을 활용하여 다수의 클라우드 컴퓨팅 노드에서 병렬수행을 테스트한다. 이 때, 소켓을 이용한 통신방법과 REST 웹서비스 Open API에 의한 통신방법을 적용한 경우의 성능을 비교한다. 결과적으로 REST 웹서비스 기반의 Open API 방식을 적용하는 것이 여러측면에서 유리함을 성능분석을 통해 보인다.

• 제어로봇시스템학회:학술대회논문집
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• 2005.06a
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• pp.915-919
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• 2005

It is materialized an unmanned vehicle system as a part of Intelligent Transportation System (ITS) which is a fundamental constituent for unmanned vehicle. Remote control system, monitoring system and remote operating system which are consisted of unmanned vehicle system. Network program by TCP/IP socket, and real-time control & operating controlled by servo-motors from a remote place, those are used to verify safety and stability of the unmanned vehicle system in this research. This unmanned vehicle is divided into two major sections which are an unmanned vehicle part and control station part. The server PC is installed on the unmanned vehicle and a client PC is installed at a remote place, which can control the u manned vehicle. In this research work, main theme is that we experimented and tested to check the speed and utilization of the wireless LAN communication.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.231-232
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• 2013

본 논문에서는 타 지역 상황이미지 공유를 위한 안드로이드 기반의 '거긴어때요?' 애플리케이션의 개발 내용에 대해서 기술한다. 이는 소켓통신을 이용한 서버/클라이언트 구조로 되어 있으며, 타 지역에 있는 사용자 간에 실시간으로 상황이미지을 공유하고 확인할 수 있는 시스템이다. 이 애플리케이션을 사용하는 A지역에 있는 사용자는 보고 싶은 B지역에 관한 요청 글을 올릴 수 있고, 알림을 받은 B지역에 있는 다른 사용자는 자기가 있는 B지역에 관한 이미지를 첨부하여 답변 글을 올릴 수 있다. 이는 네이버 지식인을 통해 사용자들이 각자 알고 있는 지식을 공유하듯이 본 애플리케이션을 이용해 타 지역을 직접 가지 않고서도 그곳의 상황이미지를 실시간으로 공유할 수 있도록 해 준다.

• 제어로봇시스템학회:학술대회논문집
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• 2002.10a
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• pp.58-58
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• 2002

Recently Many technologies of the P.L.N (Power Line Network) are introduced for an efficient communication. P.L.N transmits information using power line channel. A medical information transmission system is proposed in this paper for the effective transmission. The Power Line Networks have an advantage in low cost because it uses existent power line. It can be easily applied anywhere that a power line socket is available. But the power line channel is very noisy, because many electronic devices in generate electronic noise in modulated signals. This problem should be considered carefully in the design of medical information transmission system using P.L.N. The proposed system can be applied...I propose a telemedicine system using the power line network.

• Journal of Institute of Control, Robotics and Systems
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• v.13 no.3
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• pp.242-248
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• 2007

In this paper, we implement the internet-based remote control system for intelligent robot. For remote control of the robot, it uses the socket communication of the TCP/IP. It consists of the user interface and the robot control interface. Robot control interface transmits the navigation and environmental informations of the robot into the user interface. In order to transmit the large environmental images, a JPEG compression algorithm is used. User interface displays the navigation status of the robot and transmits the navigation order into the robot control interface. Also, we propose the design method of the fuzzy controller using navigation data acquired by expert's knowledge or experience. To do this, we use virus-evolutionary genetic algorithm(VEGA). Finally, we have shown the proposed system can be operated through the real world experimentations.

• Proceedings of the KIEE Conference
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• 2007.04a
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• pp.325-327
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• 2007

In this paper, we implement the internet- based remote control system for intelligent robot. For remote control of the robot, it uses the socket communication of the TCP/IP. It consists of- the user interface and the robot control interface. Robot control interface transmits the navigation and environmental informations of the robot into the user interface. In order to transmit the large environmental images, a JPEG compression algorithm is used. User interface displays the navigation status of the robot and transmits the navigation order into the robot control interface. Also, we propose the design method of the fuzzy controller using navigation data acquired by expert's knowledge or experience. To do this, we use virus-evolutionary genetic algorithm(VEGA). Finally, we have shown the proposed system can be operated through the real world experimentations.