• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2009.10a
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• pp.237-240
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• 2009

In this paper study is to present a framework for sharing medical information. information is generated on the basis of HL7 Messaging standards and shared between, message design on the Implementation of Medical Inform Based on HL7. Effective management control bundled with other devices.

• Korean Journal of Labor Studies
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• v.14 no.2
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• pp.377-413
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• 2008

세계 경제의 환경 변화로 제조업 부문은 경쟁 압력과 함께 구조조정 압력에 직면하고 있다. 특히, 석유화학 산업은 대표적인 장치산업이란 특징으로 인해 중국과 중동의 대규모 신규 설비투자가 한국 석유화학 산업에 커다란 구조조정 압력으로 작용하고 있다. 정부가 정책대안의 1순위로 꼽는 인수합병 계획으로 인해 대규모 고용조정과 함께 비정규직 증가가 초래될 가능성이 크다. 석유화학산업의 고용형태는 '핵심-주변'으로 이원화되어 있으며 '구조조정 = 비정규직 증가'로 나타나고 있기 때문이다. 프랑스의 구조조정 대응 사례를 통해 정부의 능동적 개입과 노조의 적극적 대안 추구 노력이 구조조정에 따른 고용 문제의 해결책을 마련해 낼 수 있음을 알 수 있다. 정부는 석유화학산업의 당면 과제인 산업 내 양극화를 극복하고 산업연관체계를 재구축하기 위한 능동적 역할을 담당해야 한다. 또한 지역차원의 고용안정시스템의 구축을 위해 지방정부의 능동적 역할이 요구된다. 특히, 도급구조로 이원화된 노동력 구조를 극복하기 위해서 건설플랜트노동자를 비롯해 하청구조 하의 다양한 비정규직의 이해를 반영하는 교섭틀 구축이 중요하다. 노동조합은 전체 노동자를 포괄하는 위치에서만 산업정책에 대한 개입력을 높여나갈 수 있다. 사회연대적, 사회운동적 노동조합주의라는 새로운 정체성 하에서만 적극적인 산업재편 개입전략의 토대를 형성할 수 있다.

• Proceedings of the Korea Information Processing Society Conference
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• 2022.11a
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• pp.992-994
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• 2022

본 논문에서는 시각장애인의 안내견을 위한 인공지능을 활용한 객체 인식 기반 과속 탐지 알고리즘을 제안한다. 이는 안내견이 도로 상에서 이동용 장치를 인식하는 것을 도와줌으로써 위험 요소 탐지 능력을 향상시킬 수 있고, 시각장애인의 안전을 보장할 수 있다. 인식 시스템은 Yolov5를 활용하여 사물 학습 과정을 진행하였고, 이동용 물체의 인식 과정을 통해 속도 측정 및 주변 위험 요소를 구분하여 판단하게 하였다. 판단된 정보는 안내견에게 교육된 신호로 전달되고, 시각장애인을 안전하게 인솔하여 도로상의 사고를 사전에 예방할 것으로 기대된다.

• The Journal of the Korea Contents Association
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• v.20 no.6
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• pp.99-113
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• 2020

In the future, robots and drones for the convenience of our lives in everyday life will increase. As a method for controlling this, a remote control or a human voice method is most commonly used. However, the remote control needs to be operated by a person and can not ignore ambient noise in the case of voice. In this paper, we propose an economical attitude information acquisition method to accurately acquire the posture information of the arm in real time under the assumption that the surround drones or robots can be controlled wirelessly with the posture information of the arm. For this purpose, the extended Kalman filter was used to eliminate the noise of the arm position information. in order to detect the arm movement, a low cost MEMS type sensor was applied to secure the economical efficiency of the apparatus. To increase the wear ability of the arm, We developed a compact and lightweight attitude information acquisition system by integrating all functions into one chip as much as possible. As a result, the real-time performance of 1 ms was secured and the extended Kalman filter was applied to acquire the accurate attitude information of the arm with noise removed and display the attitude information of the arm in real time. This provides a basis for generating commands using real-time attitude information of the arm.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.3
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• pp.499-505
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• 2016

In this Paper, we propose a body-area localization technique based on WUSB (Wireless USB) over WBAN (Wireless Body Area Networks) protocol required for wearable computer systems. The proposed localization algorithm is executed on the basis of WUSB over WBAN protocol at each sensor node comprising peripherals of a wearable computer system. To increase the accuracy of input information through various body motions in wearable computer systems, a new localization technique with high precision must be developed. To achieve the goal, This paper proposes a combined TDoA/FDoA/AoA (Time Of Arrival/Time Difference Of Arrival/Angle Of Arrival) localization technique with more than four WUSB over WBAN devices to estimate body-area location accurately. The combined TDoA/FDoA/AoA technique reduces 10mm in location estimation errors comparing with a combined TDoA/FDoA technique. This performance enhancement in location error reduction can be ignored at other systems but is meaningful results in body-area localization-based communications.

• Journal of Korea Multimedia Society
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• v.17 no.3
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• pp.364-372
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• 2014

This research enables the user to have access to the desired service which is on the multi-platform display device by establishment customized Digital Signage System using the SaaS method. This system is significantly favorable due to the following points: the expandibility and portability is outstanding compared with the existing signage system, establishment expenses may be reduced because the platform can be established in various configurations independently, maintenance and management, and the strong point of the system is that costs can be reduced due to the fact that the electric power can be controlled according to environmental situations. Various researches should be conducted simultaneously such as researches on automatic pattern recognition technologies which recognizes the sex, age, location among other data of the user and various methods of image processing for the production of contents to elaborate lively contents to provide diverse experience and enjoyable configurations for the future generation.

• Journal of the Institute of Electronics and Information Engineers
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• v.50 no.1
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• pp.239-245
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• 2013

The temperature monitoring of power cable and cable junction point is the necessary link of the safe and reliable operation of the power system. Many kinds of cables and high voltage junction points are easy to exposed continuous vibrations and momentary impulse in industry field especially power plant industries. This system can predict the overheating of the electric cable interface and the possibility of all kinds of accident, and it helps for eliminating the hazards of electric cable interface and provides the effective guarantee for the safety operation. In order to avoid the faults of the inconvenience of installation and maintenance and the high cost of application, this system used small and contactless IR sensor module. The low power consumption is used in the system. The goal of this study is the low cost and on-line reliable monitoring of power cable and junction point temperature.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.35 no.10
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• pp.1193-1198
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• 2011

The solenoid valve used in fuel cell system need to have good sealing performance because the work fluid can explode in the system. Moreover, the temperature of the work fluid is extremely high in order to maintain the properties of the rubber ring that seals the solenoid valve. This study deals with the rubber ring which is made from a fluoro-elastomer. The life cycle of the rubber ring was estimated by the relational expression of Arrhenius, and the solenoid valve was tested to confirm the sealing characteristics.

• Transactions of the Korean hydrogen and new energy society
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• v.22 no.5
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• pp.609-615
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• 2011

A 5 kW class SOFC system for cogeneration power units was consisted of a hot box part and cold BOPs. High temperature components such as a stack, a fuel reformer, a catalytic combustor, and heat exchanges are arranged in the bot box considering their operating temperatures for the system efficiency. The hot box was made of ceramic boards for the thermal insulation. A 5 kW class SOFC stack was composed of 2 sub-modules and each module had 64 cells with $15{\times}15cm^2$ area and stainless steel interconnects. The 5 kW class SOFC system was operated with a hydrogen and a city gas. With a hydrogen, the total power of the stacks was about 7.1 kWDC and electrical efficiency was about 49.3% at 80 A. With a city gas, the total power of the stacks was about 5.7 $kW_{DC}$ and electrical efficiency was about 38.8% at 60 A. Under self-sustained operating condition, the system efficiency including a power conditioning loss and a consumed power by BOPs was about 30.2%.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.5 no.2
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• pp.327-335
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• 2001

In the 21st century, broadcasting, communication, and computer have been integrated due to the development of digital technology. Accordingly, to overcome the limit of respective communication media and to maintain them, their independent area shall not be classified. This study is to examine the future environment of digital TV broadcasting, to analyze customizing type service and interactive type TV technology, and to make asymmetric interactive digital TV publication broadcasting system, which is TV broadcasting in the next generation to treat visual image, sound, and various data all together by harmonizing broadcasting and communication like ISDB(Integrate Service Digital Broadcasting). In addition, to develop service on publication broadcasting with high quality, this study is to propose to develop relative devices for TV/PC reception to realize a new communication type TV publication broadcasting, by analyzing technology for producing, sending, transmitting, receiving, and saving to apply to customizing type interactive system and by examining its application.