• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.19 no.2
• /
• pp.147-154
• /
• 2001

The development of equipments which are for the collection and processing of digital images in digital photogrammetry is actively performed at the research about practical use. The close-range digital photogrammetry is widely using to determine accurate position, feature, and size of objects. The goal of this study is to judge the precise surveying possibility of a streamline object, like a vehicle, using digital close-range photogrammetry. The standard deviation of the calculated coordinates is respectively ${\sigma}_x$=0.434mm, ${\sigma}_y$=0.619mm, ${\sigma}_z$=0.387mm. The result values is enough to converge an accuracy required for the field of an automobile design. Therefor we suggest that the digital close-range photogrammetry could be use for the majority of industries.

• Journal of the Korean Institute of Intelligent Systems
• /
• v.14 no.1
• /
• pp.20-27
• /
• 2004

We propose the character recognition system for Gerber files. The Gerber file is the vector-formatted drawing file for PCB manufacturing, which includes various symbols, figures and characters. Also, the characters are written in horizontal, vertical, and reverse-vortical directions. In this paper, we newly propose the Gerber-character recognition system to recognize all of component names located in PCB. To improve the performance, we develop the multiple recognizers by neural networks and the verifier considering the structural features. The developed system has been installed to the auto-programming software for PCB assembly and inspection machines.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• v.1
• /
• pp.317-323
• /
• 2006

The objective of this study is to test and modify the gantry travel mechanism of an ALV(automated lifting vehicle) as a main technology of development of ALV. For the purpose of the improvement of container terminal productivity, this study performed to develop the ALV as a part of R&D. In order to verify the design data and detect the errors of detailed drawings, we performed the various limited weight test under load and unload conditions. Through the reflect of final drawing based on the this test, we could use to produce the more complete vehicle.

• The KIPS Transactions:PartC
• /
• v.12C no.2 s.98
• /
• pp.261-266
• /
• 2005

This paper proposes two systems. One is a Home Gateway(HG) which efficiently connects and controls digital appliances in the home network environments. The other is a Management Server(MS) that overcomes the physical limitation of the HG. The HG supports networking modules(TCP/IP for Ethernet, ADSL), home networking functions(HomePNA, IEEE1394 PLC) and telecommunication system(PSTN/SLT, VoIP, Video Communication). The HG is expected to be a core device for the integrated digital home environments. The MS is a dedicated server which manages and controls individual HG, home appliances and HA devices implemented at an area.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
• /
• 2006.05a
• /
• pp.1005-1008
• /
• 2006

In this paper, we provide data of wireless environment in indoor for Bluetooth and wireless LAN systems. To accurately measure transmission characteristic for influence of the indoor wall, we used radiation measurement system with antennas. And various structure and material of the indoor wall are measured. Results of the measurement show that the attenuation of power is about $1\sim3dB$ for cement wall(25cm). In the case of cement wall with steel frame, the attenuation of power was increased using horizontal polarization but was not affect using vertical polarization.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2009.06a
• /
• pp.419-424
• /
• 2009

The ocean rock was crushed mainly by drop hammer and blasting. In recent years, because of farming and harbors extension, the ocean rock crushing method is changing to popular complaint solving type. Effective rock crushing methods of protecting environment are studied under consideration for topography, farming, structures, electronic equipment, environment protection arm near to rock crushing sector. Effective rock crushing methods are compared under consideration for crushing volume, rock quality, distribution, crushing speed. Effective rock crushing methods at once solving popular complaint and protecting ocean environment and building ocean structures, are compared according to the coast development.

• The KIPS Transactions:PartA
• /
• v.8A no.4
• /
• pp.339-344
• /
• 2001

In this paper, we describe the issues associated with implementing embedded Linux system. As an example of embedded system, a router which utilizes the powerful networking capability of Linux is implemented and the details of porting Linux to the dedicated hardware is discussed. Several efficient methods to avoid performance degradation resulted from porting lap top computer oriented Linux to embedded system are suggested. To verify the eligibility of the method to embed Linux into standalone system and to see the performance of the implemented router, comparison data with one of the most popular routers is presented.

• Proceedings of the Korean Institute of Intelligent Systems Conference
• /
• 2006.11a
• /
• pp.57-60
• /
• 2006

최근 유비쿼터스 헬스케어 서비스를 이용한 시간과 공간의 제약 없이 각종 의료서비스와 건강관리를 제공받는 유비쿼터스 헬스케어에 대한 관심이 증대되고 있다. 유비쿼터스 헬스케어 산업은 특성상 단일 제품이나 서비스로만 존재하지 않고, 의료정보, 장비, 소프트웨어, 네트워크, 전자상거래 등의 보건 의료를 구성하는 모든 산업이 IT에 기반 하여 집약된 새로운 산업분야이다. 이러한 산업 특성상 유비쿼터스 헬스케어 서비스는 다양한 기술들을 이용하기 때문에 이들을 서비스의 개발, 이용 단계에서 통합된 환경을 제공받아 이용하는 것이 효과적이다. 본 논문에서는 유비쿼터스 헬스케어 서비스 이용을 위한 서비스 시스템 아키텍쳐를 제안하고, 제안된 시스템에서 이용할 수 있는 서비스들을 개발하기 위한 유비쿼터스 헬스케어 서비스 개발 Framework을 설계한다. 제안된 시스템 아키텍쳐와 개발 Framework을 이용하면 헬스케어 서비스 이용자에게 적절한 인터페이스의 제공과 질환에 대한 추적 관찰, 증상의 판단, 진료 지원, 건강관리, 외부 기관과의 정보 교환 등의 서비스를 개발할 수 있다.

• Journal of the Korean Society of Propulsion Engineers
• /
• v.25 no.3
• /
• pp.81-88
• /
• 2021

An airbreathing propulsion system of a subsonic cruise missile is mainly composed of a small gas turbine engine, air intake and vehicle's fuel tank. The propulsion system integration work started from engine acceptance test is finally closed by ground functional test of the missile's propulsion section, after some modifications of engine's sub-components, development of engine-related onboard systems, interface analyses, and tests. The whole process and stepwise technologies of this system integration work are described herein.

• KNOM Review
• /
• v.23 no.1
• /
• pp.18-25
• /
• 2020

Recently, a research on a smart factory was developed from a concept of factory automation(FA) to the formation of collecting and analyzing data. This trend is accelerated as the development of communication technology(5G) and IoT devices are developed in various ways according to the field situation. In addition, digital transformation has been actively conducted in the strengthening corporate competitiveness, and various optimization studies are being conducted through process re-adjustment by combining data received from various IoT equipment and automated facilities. Therefore, in this paper, we propose a system architecture and its related components in diagnosing and repairing facility failure using a prediction system which is one of the related researches.