• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2004년도 추계학술대회 논문집
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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.

• 대한안전경영과학회지
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• 제4권3호
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• pp.67-78
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• 2002

Automated manufacturing systems are applied to shop floors as tools for increase of productivity and quality and the decrease of manufacturing lead times and industry accidents. One of the most important issue of the present day is the application of Internet. The development of Internet technologies makes manufacturing enterprises break spacial barriers between users and shop floors, and collect various field data in remote sites. In this research, an Internet-based remote control system for a small-sized automated storage and retrieval system is developed for the purpose of real-time monitoring and control of automatic production equipment. The developed system has a client-server architecture and sends real-time images of the automated storage and retrieval system to clients by an CCD camera connected to a server.

• 전자공학회논문지CI
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• 제43권4호
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• pp.15-22
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• 2006

요즘, 에너지 절감이라는 전 세계의 요구에 따라 많은 연구와 응용개발이 이루어지고 있다. 이러한 응용개발에는 INTERNET, LAN, PLC, ZIGBEE 등과 같은 유무선 네트워크 장치를 이용하고 네트워크 상에서 발생할 수밖에 없는 제어시스템에서의 치명적인 문제를 비교적 저렴하고, 작은 노력을 들여 구축할 수 있는 방법에 대한 연구가 이루어져야 한다. 또한, 네트워크 기능을 가진 임베디드 시스템의 경우 펌웨어 업그레이드가 타 장치에 비해서 장점이 많으므로 네트워크 노드들을 원격으로 관리하고, 신뢰성 있도록 하는 제어방법이 중요할 것이다. 본 논문에서는 센서 노드 및 릴레이를 관리하는 PLC 영역과 ESS의 핵심요소인 LACC 구현과 신뢰성 있는 결과를 얻기 위한 성능분석 및 평가를 행함으로서 본 논문에서 제안된 효과적 원격관리와 제어방법 등을 실험결과를 통해 검증한다.

• 전자공학회논문지CI
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• 제46권6호
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• pp.63-69
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• 2009

인터넷의 탈 중심적, 개방적인 특징과 이동통신의 이동성, 휴대성 그리고 인터넷과 이동통신의 양방향성 이라는 특징 및 장점들의 접목은 우리생활에 무선 인터넷을 탄생하게 하였으며, 생활에 많은 변화를 가져오게 되었다. 그러나 기존 유선상의 웹 기반인 시스템 관리 소프트웨어 솔루션들은 시간적, 공간적 제약과 오류사항에 대한 통보가 불확실하거나 신속한 지원요구 및 실시간 긴급조치가 어렵다는 문제점들을 갖는다. 따라서 본 논문에서는 모바일 통신기기(휴대폰, PDA, Smart Phone, Webpad)를 이용하여 원격시스템을 관리 및 모니터링하고 실시간으로 원격지의 시스템을 제어할 수 있는 실시간 무선 원격제어 시스템을 설계 및 구현하였다. 구현된 실시간 무선 원격제어 시스템은 모바일 장비를 이용하여 원격지 서버 관리 기능, 장애 및 이벤트 통보기능, 로그기록 기능, 인증기능 그리고 클라이언트 트랜잭션별 시스템 성능평가 기능 등을 제공한다.

• 한국멀티미디어학회논문지
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• 제25권2호
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• pp.325-334
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• 2022

Digital twin has the advantages of quality improvement and cost reduction, so it is widely applied to various industries. In this paper, a method to implement the major technologies of digital twin easily and quickly is presented. These include data management and relay servers, real-time monitoring applications including remote control interfaces, and direct connection protocols for video streaming. In addition, an algorithm for controlling a two-wheeled vehicle with a 2D interface is also proposed. The implemented system performs near real-time synchronization between the real environment and the virtual space. The delay time that occurs in remote control of the vehicle in the real environment was compared with the results of applying the proposed delay time reduction method. In addition, in the case of 2D interface-based control, an algorithm that can guarantee the user experience was implemented and applied to the actual environment and verified through experiments.

• International journal of advanced smart convergence
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• 제8권3호
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• pp.69-77
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• 2019

Today, most of elevators have an emergency call facility for emergency situations. However, if the network installed in the elevator is also out of power, it cannot be used for the elevator remote monitoring and management. So, we develop an integrated and unified emergency call system, which can transmit not only telephone call but also data signals using PSTN(Public Switched Telephone Network) in order to remote monitoring and management of elevators, even though a power outage occurs. The proposed integrated emergency call system to process multiple data such as voice and operational information is a multi-channel board system which is composed of an emergency phone signal processing module and an operational information processing module in the control box of elevator. In addition, the RMS(remote management server) systems based on the Web consist of a dial-up server and a remote monitoring server where manages the elevator's operating information, status records, and operational faults received via the proposed integrated and unified emergency call system in real time. So even if there's a catastrophic emergency, the proposed RMS systems shall ensure and maintain the safety of passengers inside the elevator. Also, remote control of the elevator by this system should be more efficient and secure. In near future, all elevator emergency call system need to support multifunctional capabilities to transmit operational data as well as phone calls for the safety of passengers. In addition, for safer elevators, it is necessary to improve them more efficiently by combining them with high-tech technologies such as the Internet of Things and artificial intelligence.

• 한국멀티미디어학회논문지
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• 제6권4호
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• pp.638-649
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• 2003

In this monograph, we developed a Remote Courseware Management System so we can more easily cultivate a courseware with various multimedia applications through an easy interface with the internt. In the view of Developer of view, we could develop RCMS rapidly using the application of ASP.NET and have tried to adapt ourself to the future environment using it. ASP.NET provides much richer event programming model than ASP and event processor which are executed on Server. In the view of User, they can used the Internet service with equipment that they want at any place and any time. To control any kinds of courseware for Administrator and Users, we offered a variety of Multimedia applications and an easy interface and built a new style of web courseware.

• 전력전자학회논문지
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• 제4권6호
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• pp.570-578
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• 1999

이 논문은 인터넷이나 정보통신망을 이용하여 멀리 떨어져 잇는 기기를 제어하거나 감시하는 원격 제어 시스템을 개발하는 것을 목표로 하고 있다. 이 때 원격 제어용 프로토콜로는 SNMP(Simple Network Manatement Protocol)를 사용하였고, 지역적으로 멀리 떨어져 있는 기기에 대한 실시간 제어 및 감시를 위하여 자바(Java) 환경의 소프트웨어를 구축하였다. 도한 이 논문에서는 네트워크 기기와 응용 기기 사이의 인터페이스 컨트롤러를 제안하여 대부분의 기기에서도 이 원격 제어 시스템을 사용할 수 있다는 가능성을 보였다.

• 전자공학회논문지
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• 제51권10호
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• pp.235-242
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• 2014

LED 조명 제어 기술은 LED 조명의 효율적인 관리를 위해 지속적으로 연구되는 분야 중의 하나이다. 본 논문에서는 LED 가로등을 원격으로 제어하기 위해 유무선 통신 기능을 가지는 LED 가로등 원격 제어 장치를 설계하고 구현한다. 구현된 원격 제어 장치는 조도 센서를 이용한 자동 디밍이 가능하고, RS-485/422나 Wi-Fi를 이용하여 LED 가로등을 개별(또는 통합) 제어가 가능하다. 실험을 통해 개발된 원격 제어 장치의 기능이 정상적으로 동작함을 확인하였다.

• 조명전기설비학회논문지
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• 제26권10호
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• pp.72-80
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• 2012

In general, electronic conveyor scales are installed in a relatively distributed manner on the crushed rock and sand production site. It is one of the time-consuming and difficult engineering works to monitor and control the plant operation status such as the management of measuring data, malfunction of belt conveyor, and fault of electronic conveyor scale. Therefore, to alleviate the inefficient problems and to monitor the operating plant in the online and remote control room, a remote calibration and real-time monitoring system, which is practically applied to the electronic conveyor scale system and verified by onsite experiment, is developed based on the LabVIEW.