• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.323-324
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• 2008

This study implemented the LED lighting control system using Zigbee Communication. We designed a desk lamp using LEDs. The PWM signals control LEDs using LED drivers. A desk lamp received PWM signals using Zigbee protocol to control LED Color, Color temperature and brightness. Zigbee protocol that have such several advantages to existent Home network system can upgrade more interface dimension.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.05a
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• pp.999-1006
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• 2003

This research presents efficient operation schemes that is emphasized on mailing center's automation parts. We utilized the automation indicator to analyzed the mailing center system. For automation of the mailing center, we proposed the sorting automation alternative of registered mail, automation of conveyance system between workshops and the Up-Grade scheme for process improvement in mailing center. The selection of the registered mailing f s automation alternatives is composed of the AHP(Analytic Hierarchy Process) method. Through the analysis of the space and the quantity of materials, the simulation experiments are conducted to examine conveyance equipment possibility of the mailing center. By simplifying the mailing center conceptually, we proposed the upgrade of process for the mailing center system. The result of this research can give some ideas to people who are formulating a policy for the mailing center operation.

• Convergence Security Journal
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• v.15 no.1
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• pp.105-113
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• 2015

This study is improvement plan to the Certification System thorough awareness analysis of the Private Security Guard Certification. It's understanding what problems of Private Security Guard Certification by making a qualitative analysis. The findings of the study were as follows: First. skill upgrade who evaluation committee's, Second, introduction of technology what imagery interpretation system, Third, a public offering of examination result and a formal objection.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2012.10a
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• pp.351-354
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• 2012

The core of cloud computing is to provide efficient computing resource sharing. In this paper, we have designed and implemented a virtual computer lab system using open source cloud computing infrastructure. The proposed virtual computer lab system can be used to reduce computer upgrade and maintenance cost significantly.

• Proceedings of the KIEE Conference
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• 1994.07a
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• pp.106-109
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• 1994

The object of this study is to propose the simplified power demand control system which is appliable to existing buildings or new buildings. Through the technical survey and power demand analysis in office buildings, the electric facilities which can be controlled are selected. Power demand control program can be controlled the electric facilities in order, and displayed the facility operation state. The proposed power demand control system is cost-effective and flexibly adoptable in system upgrade or retrofit.

• Journal of the Optical Society of Korea
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• v.10 no.1
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• pp.23-27
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• 2006

We are studying the application of an adaptive optics system to upgrade the beam quality of a laser. The adaptive optics (AO) system consists of a bimorph deformable mirror, a Shack-Hartmann sensor and a control system. In most AO applications, the beam aperture is considered to be circular. However, in some cases such as laser beams from unstable resonators, the beam apertures are annulus or a holed-rectangle. In this paper, we investigate how well a bimorph deformable mirror of ${\Phi}120\;mm$ clear aperture can compensate phase distortions for three different beam configurations; 1) ${\Phi}120\;mm$ circular aperture, 2) ${\Phi}100\;mm$ annulus aperture with a ${\Phi}20\;mm$ hole and 3) $70\;mm{\times}70\;mm$ square aperture with a hole of $30\;mm{\times}30\;mm$. This study concludes that the bimorph mirror, which might be considered as a modal controller, can compensate tilt, defocus, coma and astigmatism, and spherical aberration for all three beams.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.261-262
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• 2016

In this article, we present some derived subjects from the concept of ICT-based DPD concept for the safety of folk villages in both Korea and Japan. First, our deduced topic would rather be a monitoring system design of structures in folk villages. We, therefore, offer an integrated model of maintenance and management monitoring scheme. As another research subject, we submit safety sign or sign system installed in traditional towns and their standardization. We have draw up a plan to make signs upgrade applied to folk villages in Korea and Japan. According to our investigations, we should suggest and focus on flood in the area of traditional town in Korea. We present a water-level expectation model using deep learning simulation. We have applied this method to the area of 'Andong Hahoe' village which had been registered on World Cultural Heritage of UNESCO. The final goal of our research is to propose and realize an integrated disaster prevention and/or safety system based on big data concepts for both Korea and Japan.

• Nuclear Engineering and Technology
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• v.37 no.2
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• pp.167-176
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• 2005

We developed the PERUPS system to aid the on-line performance analysis for the turbine cycle of the YongGwang 3 and 4 nuclear power plants. Procedure of measurement validation is included in the performance calculation to obtain heat balance. Precision of on-line performance calculation is increased via practical modifications of standard calculation algorithms based on the PTC (Performance Test Code). The proposed system also provides useful Web-based aids for performance analysis, including performance data management, a graphic viewer for heat balance and turbine expansion lines, and synthesized reports of performance.

• Journal of the Korea Institute of Military Science and Technology
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• v.10 no.2
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• pp.115-125
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• 2007

The ubiquitous embedded computers are firmly established as the basic electronic component of design that control military systems. Such applications can be found everywhere in the field of military system. A embedded computer is required to redesign when system needs performance upgrade or production-state of processor is NRND or EOL. This paper describes a scheme about impact analysis of designing processor alteration on embedded computer. In this case, hardware architecture and interrupt source of target system must be considered. Also, performance and throughput of that must be analyzed.

• Proceedings of the KIEE Conference
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• 1999.07a
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• pp.6-8
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• 1999

In this paper deals with running test for the UTM(Urban Transit Maglev)-01, that is test and evaluation for the maglev. We will predict about the test value for running maglev vhicle. In this time we tested rms gap fluctuation and peak to peak air gap for levitation system of UTM-01. And then we profit for the upgrade Maglev System.