• Journal of Applied Reliability
• /
• v.14 no.3
• /
• pp.191-196
• /
• 2014

The importance of railway safety has become increasingly significant domestically as well as internationally, as a series of high speed railway accidents and other major accidents have occurred recently. Especially for the domestic railway, the Korean Railway Safety Law has been revised recently, mandates all the domestic railway operation authorities to render the performance of RAMS and RCM. This study inspects and analyzes the current status of the sensing technology of the electric detection system to tell the status of railway facilities in the highway railway in a real time through a sensor. It also performs the reliability analysis of the electric detection system that is being progressed as a study assignment and suggests the system construction for the higher reliability.

• Proceedings of the KIEE Conference
• /
• 1992.07b
• /
• pp.1048-1051
• /
• 1992

The design method is a crucial factor for the successful operation of photovoltaic system. A design method is proposed and applied practically to a stand-alone system of 25KWp aimed at the power supply for a remote-island. In this paper the operation results of this system are discussed. In addition, the current status and future prospects at home and abroad on the development of photovoltaic systems are also described.

• The Transactions of the Korean Institute of Electrical Engineers P
• /
• v.58 no.1
• /
• pp.48-55
• /
• 2009

In order to keep safe driving conditions under road networks, there are several formations such as road structure, road surface condition, traffic occupancy and supplement of an accurate information of traffic status ahead To support safe-driving on each road formation, each formation is supplied with various information to help the driver. However, in some cases like rapid status change at local-scale geography, traffic information systems often displays insufficient information because of the lack of information correlation. In order to accurately aware the driver, all road formation must be in sync. It is important to supply accurate information to the driver because this information directly impacts the drivers on the road. This paper discusses the amber information to keep the least safety driving over road formations including tunnels and bridges. This paper also will propose the informations for safe-driving conditions, information linkage on the road and rule-base safety information, as ITS technology, being displayed for all drivers under the worst weather conditions.

• The Transactions of The Korean Institute of Electrical Engineers
• /
• v.56 no.10
• /
• pp.1852-1858
• /
• 2007

To Increase availability and to enhance the safety, the modernization of Instrumentation & Control (I&C) systems is considered. The extended use of the digital technology lets nuclear power plants(NPPs) to replace their old analog systems with some proven digital systems. To adapt digital equipment to plants effectively and systematically, however, there must be an essential prerequisite, which is to evaluate current I&C equipment. This paper shows a practical methodology to evaluate the current status and reliability of I&C systems of NPPs using Reliability Evaluation System(RES) before performing upgrades or replacements for systems. The proposed method was applied to KORI Unit 2. The proposed method shows the current status of operating I&C systems effectively for upgrading I&C systems.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2018.05a
• /
• pp.408-409
• /
• 2018

In this paper, we propose an effective web service software platform for remote monitoring and control. In order to propose a system configuration that can check the object information on the web in real time to improve the performance of the web service, the object information reception module and the web viewer system are configured. As IoT devices grow, the environment becomes too complicated to identify and control the status of many devices. We have proposed that these problems be easily controlled in a web-based environment and current status information can be viewed in real time.

• Journal of Korean Library and Information Science Society
• /
• v.22
• /
• pp.171-203
• /
• 1995

The purpose of this study is to analyse the current status and to suggest some strategies for vitalizations of the citizen participation in Korean public library administration as a part of exploring ways toward the development of public libraries in the time of localization. The concepts, types, needs and some problems of the citizen participation in local public administration are examined as a theoretical framework for this study. Public library board system in America and public library council system in Japan are investigated on their history, legal status, composition, function and are evaluated as a citizen participation system. Results of the survey on actual conditions of the institutional device for citizen participation in Korean public library administration, library administration committee, are presents. And some strategies for vitalizations of the system are suggested.

• 기계와재료
• /
• v.11 no.2 s.40
• /
• pp.111-118
• /
• 1999

Test Results and Status of development of the urban transit maglev system(UTM-O1) are reported. Maglev Project Team in KIMM, in cooperation with Hyundai Precision Company and the Korea Electrotechnology Research Institute(KERI), has successfully finished the second stage development project (1995. 5-1998. 8) and demonstrated a prototype two vehicle consisted urban maglev train operating in the speed range of 50km/h. In this paper, we report various test results of the UTM-01 system, present status of quo and future prospect, and what have been done so far to improve the performance of the maglev system overall.

• 제어로봇시스템학회:학술대회논문집
• /
• 2002.10a
• /
• pp.54.2-54
• /
• 2002

Robots are widely used for welding automation in the shipbuilding industry. Because of the distinguishing mark of the shipbuilding, many robots conduct each other welding jobs at a point of time. The manager/operator stay in a place apart from working site for safety reason, but need to observe the progress of work and the status of robots. On this account, the monitoring system for welding robots has become essential. We developed a monitoring system by which, many people can monitor robot's status simultaneously at separated locations through the web. The monitoring system consists of Server and Client, where the server keep connection to robots and deliver client's request to robots and cli...

• Proceedings of the Korean Society of Precision Engineering Conference
• /
• 1997.10a
• /
• pp.60-63
• /
• 1997

Recently, factory automation and shop floor control system need a web based remote monitoring technology to control effectively machine tool. This paper describes a web based remote monitoring system which is concerned with open architecture controller for machine tool. The environment of this system consists of a lot of elements such as web server, database, machine tool, pc based controller, client computers and script programs, also which is interconnected by network including intranet or internet. Designed script programs, also which is interconnected by network including intranet or internet. Designed script program service current status and faults information of machine to remote users who want to monitor machine tool. Additionally those have various functions to service we board for q&a, downloading data and information of after-service managers.

• 제어로봇시스템학회:학술대회논문집
• /
• 1992.10a
• /
• pp.49-54
• /
• 1992

A flexible robotic assembly cell is modeled using Petri net. A simulator is developed and used to predict the optimal status of the system. The assembly cell of flexible manufacturing system(FMS) pilot plant of Automation and Systems Research Institute(ASRI) in Seoul National University is modeled. The system consists of 3 robots, 4 conveyors, automatic guided vehicle(AGV) and auto-stacker. The simulator is programmed in Turbo C on IBM PC, supporting a simple graphic simulation with pull-down menu. The flexibility of the assembly cell in the FMS plant is guaranteed, since it is possible to predict the optimal status of the system using this simulator.