• 한국통신학회논문지
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• 제23권4호
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• pp.1134-1147
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• 1998

SK 텔레콤에서 국내 기술로 개발 중에 있는 LMDS 무선 CATV망을 구성하는 기지국과 중계기 등의 원격 송수신 장치를 원격관리 및 제어하는 시스템을 개발하였다. 이 시스템은 중앙제어국에 중앙제어부를 설치하고 기지국과 중계기 등에 있는 원격 송수신 장치에 원격 송수신 장치부를 설치하여 공중전화망을 이용하여 원격송수신 장치의 상태를 감시하고, 동작을 제어한다. 여분의 송수신 장치를 함께 설치하였으며, 원격 송수신 장치부는 만일의 사태가 발생할 경우 동작을 자동적으로 절체할 수 있도록 하였다. 원격 송수신 장치부는 중앙제어부에서 하달된 명령을 수행하기도 하지만 고장이나 정전등의 비상상황이 발생하면 중앙제어부에 이 사실을 통보하는 기능도 갖는다. 본 연구에서 개발한 중앙제어부와 원격 송수신 장치부를 대억 연구단지의 SK텔레콤 중앙연구소와 인근에 설치한 BTX, PPTX 및 PPRX 등에 설치하여 운용에 성공하였으며, 원격 관리를 요하는 다른 분야에 다소 수정으로 활용할 수 있다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 1997년도 한국자동제어학술회의논문집; 한국전력공사 서울연수원; 17-18 Oct. 1997
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• pp.1884-1887
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• 1997

The increasing concern over radiation exposure in the nuclear industry has fostered agrressive efforts to reduce the levels of radiation exposure. One area of the effot to reduce the radiation exposure is the development of a remote radiation monitoring system. Remote radiation monitoring can serve many benificaial functions reduce exposure to radiation by plant personnel, impruve the quality of the data that is collected and recognize the radiation environment easily. Radiation mapping system gives a good information that represents radiation level distribution. The system we have developed consists of a data acquistion parts, mobile robot and remote control parts. Data acquisition parts consist of radiation detection module and vision acquistion module which collect radiation data, visiion data and distance information. In remote control parts, the acquision data are processed and displayed. We have constructed radiation mapping image by overlaying the vision and radiation data. The radiation mapping techniques for displaying the results of the survey in an easily comprehendable form will facilitate a better understanding of the radiation environment in the facility. This system can reduce workers radiation exposure and aid to help work plan, so it has significant benifits in cost and safety.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2009년도 제40회 하계학술대회
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• pp.1743_1744
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• 2009

In this paper, we propose a double network control approach for linear systems. Generally, there are two network control system structures: the direct structure and the hierarchical structure. Here, the hierarchical structure consists of a main controller and a remote controller. The network delay of the structure only appears in the closed loop between the main controller and the remote system. However, the delay can exist between the remote controller and the actuator. Therefore, we design the double network system with delays between the main controller and the remote system, and the remote controller and the actuator. Finally, we carry out simulations on the linear system to illustrate the effectiveness of the proposed control method.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2005년도 ICCAS
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• pp.43-48
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• 2005

A robot system encompassing a remote control and monitoring through a virtual robot design is addressed and a tracking problem for a 2D (2 dimension) moving target by a robot vision is chosen as a case study. The virtual robot is developed, and it synchronizes with the real robot by compensating delay time. Two systems are displayed on a remote panel by communicating command and image data. The virtual robot utilizes an OpenGL library in Visual $C^{++}$ environment. Additionally, the remote monitoring and control between the real robot and the virtual robot are accomplished by employing an appropriate data compression in a network communication.

• Journal of Electrical Engineering and Technology
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• 제8권3호
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• pp.613-620
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• 2013

A new remote control algorithm for a mobile robot is proposed, where a remote controller consists of a camera and inertial sensors. Initially the relative position and orientation of a robot is estimated by capturing four circle landmarks on the plate of the robot. When the remote controller moves to point to the destination, the camera pointing trajectory is estimated using an inertial navigation algorithm. The destination is transmitted wirelessly to the robot and then the robot is controlled to move to the destination. A quick movement of the remote controller is possible since the destination is estimated using inertial sensors. Also unlike the vision only control, the robot can be out of camera's range of view.

• 대한전기학회:학술대회논문집
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• 대한전기학회 1999년도 추계학술대회 논문집 학회본부 A
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• pp.381-383
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• 1999

In this paper a remote monitoring and control system using SNMP(Simple Network Management Protocol) for UPS (Uninterruptible Power Supply) systems is proposed. The local remote system by RS-232 or RS-485 communication code or the wide remote system by modems is used for conventional remote monitoring & control system for UPSs. But recently because of communication cost and long distance the system is changed to remote control systems through internet and information communication network. And serial communication method by RS-232 or RS-485 is used between agent and UPSs. In this study. we designed and developed the system which is able to control UPSs and to monitor errors. statuses and actual values transmitted from UPS through internet.

• 한국정보통신학회:학술대회논문집
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• 한국해양정보통신학회 2003년도 춘계종합학술대회
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• pp.301-304
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• 2003

본 논문은 웹 브라우저 만으로 원격지에 위치한 설비의 모니터링과 제어를 할 수 있고, 서로 다른 시스템간의 호환성과 확장성을 지원할 수 있는 lava 플랫폼을 기반으로 응용 계층인 HTTP 프로토콜의 URL통신을 이용한 인터넷 원격제어 시스템 구축 방법을 제안하였다. 제안한 인터넷 원격제어시스템을 실험하기 위하여 서버 PC와 RS-232 통신방식으로 연결된 $\mu$-Processor를 통한 직류전동기의 속도 및 온도를 모니터링하고 제어하는 실험을 하였다.

• 제어로봇시스템학회논문지
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• 제8권5호
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• pp.434-437
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• 2002

A small size and light-weight DSP board is newly designed for a real time multi-distributed control system that overcomes constraints on time and space. There are a variety of protocols for a real-time distributed control system. In this research, we selected CAN for the multi distributed control, which was developed by the BOSCH in the early 1980's. If CAN and Internet are connected together, the system attains the characteristics of a distributed control system and a remote control system simultaneously. To build such a system. The TCP/IP-CAN Gateway which converts a CAN protocol to TCP/IP protocol and vice verse, was designed. Moreover, the system is required to be small and light-weighted for the high mobility and cost effectiveness. The equipment in remote place has a TCP/IP-CAN Gateway on itself to be able to communicate with another systems. The received commands in the remote site are converted from TCP/IP protocol to CAN protocol by the TCP/IP-CAN Gateway in real time. A simulation system consists of a TCP/IP-CAN Gateway in remote place and a command PC to be connected to Ethernet.

• 한국멀티미디어학회논문지
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• 제24권2호
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• pp.267-273
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• 2021

Recently, the small-size mobile robots with remote-control are rapidly growth which market of mobile is increased in the world. Especially, the smart-phones are widely used for interface device in the small size of a mobile robot. The research goal is control system design which is applied to miniaturization of a mobile robot using smart-phone and it can be confirmed performance for designed system. Meanwhile, the fabrication of mini-mobile robot can also be remote-control operation through the WIFI performance of a smart-phone. The smart-phone is used to remote-control for robot operation which control data transmit to robot via the WIFI network. To drive the robot, we can observe by the smart-phone screen and it can easily adjust the robot drive condition and direction by smart-phone button. Consequentially, there was no malfunction and images were printed out well. However, in drive, because of blind spot, robot was bumped into obstacle. Therefore, the additional test is necessary to sensor for blind spot which sensor can be equipment to mobile robot. In addition, the experiment with robot object recognition is needed.

• 한국컴퓨터산업학회논문지
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• 제5권9호
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• pp.883-890
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• 2004

본 논문에서는 임베디드 시스템을 응용하여 인터넷으로 기기들을 원격으로 제어하는 장치를 개발한다. 이극 위하여 임베디드 디바이스 서버를 이용한 원격인터페이스 장치와, 이 장치륵 이용한 원격 제어 방법을 설계하고, 임베디드 인터넷 원격 제어를 위한 PC 프로그램을 개발을 설명한다. 개발된 장치는 집 안팎에서 출입구나 전등, 가전제품 등을 제어할 수 있는 홈 오토메이션이나 기타 인터넷을 이용한 산업용 원격 제어에 다양하게 이용가능하다. 또 논문에 서는 수 십 개의 모터를 동시에 제어할 수 있는 장치에 응용 예를 보인다.