• Journal of the Korea Society of Computer and Information
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• v.27 no.9
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• pp.139-147
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• 2022

The goal of this study is to develop a mobile application so that a person who is new to chemistry can easily acquire the knowledge necessary for chemical structure learning using image tracking technology. The point of this study is to provide a new chemical structure learning experience by recognizing a two-dimensional picture, augmenting the chemical structure into a three-dimensional object, showing it on the user's screen, and using a service that simultaneously provides related information in multiple fields. characteristic. Login API and real-time database technology were used for safe and real-time data management, and an application was developed using image tracking technology for image recognition and 3D object augmentation service. In the future, we plan to use the chemical structure data library to efficiently load and output data.

• Journal of Internet of Things and Convergence
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• v.9 no.6
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• pp.29-35
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• 2023

Braille can be said to be an essential means used for the visually impaired to communicate or acquire information on visual materials in their lives. However, the rate of interpretation of braille among the visually impaired is insignificant at 5%. As a result, libraries for the visually impaired produce various types of materials that can obtain various information for the visually impaired and also have assistive technology equipment to interpret them. However, the publication rate of Braille books is too low to purchase and interpret Braille books. In addition, the Braille interpretation rate is too low, and the purchase of assistive technology devices is too expensive and slow. Therefore, in this paper, we implemented a system that displays Braille using Arduino to help visually impaired people in addition to the existing methods they use to obtain information. For Braille display, Korean data is transmitted from Python through serial communication between Python and Arduino, and Arduino, which receives the data, compares the Korean data with the data in the array in the program and retrieves the Braille values of the Korean data. Here, the Braille value was expressed by controlling the servo motor perpendicular or horizontal to the body using white and black circles based on the Braille list.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2005.06a
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• pp.1601-1604
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• 2005

The demand increasing of optical applications like as display devices derives interest for fabrication process. The product s development is apt to fabricate numerous thin and wide surfaces with micro pattern. Naturally that needs injection molding fabrication for the mass production. In existing manufacturing, the product quality is controlled by input fabrication condition from the outside. That can be called as a try and error method and not fundamentally solve the troubles; imperfect replication, war page, short shot, etc. To understand the cause and bring a solution, it is needed that check of changing in the cavity. This study can catch them. Data acquisition system about temperature and pressure distribution is settled and can get some data. From this research, other studies related with DAQ in cavity can start on the easier step.

• Journal of the Korean Society of Safety
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• v.12 no.1
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• pp.140-145
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• 1997

안전측면에서 볼 때 각종 유해위험물질 정보분석은 산업현장의 교육자료 및 기초자료로 활용할 수 있고 이러한 사전 교육을 통해 예비지식을 습득함으로써 유해위험물질로 인해 발생 가능한 사고를 미연에 방지할 수 있어 유용하다. 이로 인해 각종 유해위험물질 정보를 제공하고자 1994년 말에 한국산업안전공단에서 제시한 "화학물질의 위험특성 조사 및 MSDS의 제도화 연구 보고서"에서 물질안전보건자료(MSDS)를 검색하는 도스용 프로그램이 개발되었고 국내에서는 통신을 이용한 서비스로는 KISCO-NET의 물질안전보건자료를 검색하는 대화형 방식의 서비스가 있다. 최근 들어 국외에서는 하이퍼텍스트 포맷을 사용한 그래픽환경의 클라이언트 프로그램인 웹 브라우저(Web Browser)로 World Wide Web 서버에 구축되어진 물질안전보건자료를 검색하는 사이트(site)가 늘어나고 있다. 이는 웹 서버가 단순히 문서만 전송하는 것이 아닌 멀티미디어 서비스를 지원하고 있을 뿐만 아니라 그래픽 환경의 클라이언트 프로그램으로 자료의 검색이 손쉽다는 점에서 웹상의 데이터 베이스화는 늘어가고 있는 추세이다. 하지만 현재까지 국내에는 물질안전보건자료를 웹상에서 검색할 수 있도록 한 웹 서버 구축사례는 없다. 따라서 1995년 초부터 작업을 시작하여 물질안전 보건자료를 검색하는 웹 서버를 국내에서 처음으로 구축하였으며 현재 거의 완성단계에 이르러 시범운전을 하고 있다.운전을 하고 있다.

• Proceedings of the KAIS Fall Conference
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• 2006.05a
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• pp.457-461
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• 2006

디지털 융합(Digital Convergence)이 모든 분야에서 급속히 전개됨으로서 기업들은 전략적으로 IT를 전사적으로 활용하면서 글로벌 시대의 경쟁 기업들에 비해 보다 빠른 신기술 습득을 적용함으로써 생존 경쟁의 우위 확보 전략이 점차 강화되고 있는 실정이다. IT 기술의 발전 방향도 전사적 데이터 및 비즈니스 프로세스의 통합을 통하여 전 영역에 걸쳐 신기술을 이용하여 표준화와 통합화로 진보되고 있다. 그러나 글로벌 경쟁체제인 세계화가 가속화 되고 있는 기업들의 품질 경영 활동이 실시간으로 처리되지 못함에 따라 각종 경영혁신 활동에 대한 통제/관리와 비용 절감 노력이 기업 역량 강화에 유기적인 효과를 거두지 못하고 있는 실정이다. 따라서 본 연구에서 일반적으로 제조 부문이나 사무간접(관리)부문에서도 적용 가능한 6시그마 추진 방법론을 기반으로 목표관리 및 방침관리인 Top-Down 프로세스인 순공학 품질경영 활동인 뿐만 아니라, 현장의 창의적인 품질경영 활동을 통한 Bottom-Up 프로세스인 역공학 품질경영 활동에서도 적용 가능한 실시간 동시공학적인 품질경영 활동의 프레임워크를 설계하도록 한다. 또한 가치 흐름 분석을 통해 낭비 요인을 철저하게 제거하고, 프로세스의 흐름을 최적화하여 원하는 품질경영 활동이 프로젝트로 발전하여 기업경영에 실시간으로 반영될 수 있는 전사적 통합 품질경영 활동 시스템을 제안하도록 한다.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.5
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• pp.901-910
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• 2023

In universities, programming language-based thinking and software education for non-majors are being implemented to cultivate creative and convergent talent capable of leading the digital convergence era in line with the Fourth Industrial Revolution. However, learners face difficulties in acquiring the unfamiliar syntax and programming languages. The purpose of this study is to propose a software education model to alleviate the challenges faced by non-major students during the learning process. By introducing algorithm techniques and diagram techniques based on programming language thinking and using the EZMKER kit as an instructional model, this study aims to overcome the lack of learning about programming languages and syntax. Consequently, a structured software education model has been designed and implemented as a top-down system learning model.

• Korean Journal of Construction Engineering and Management
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• v.7 no.1 s.29
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• pp.159-167
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• 2006

Better utilization of the knowledge of employees in any organization has long been accepted as a vital component of a corporation's competitiveness. This has been considered even more important in the construction industry due to the dynamic and intermittent nature of construction projects. With the rapid advance of network technologies during the last decade, construction companies quickly shifted their focus of knowledge management to interactive online repositories. However, the efforts of leveraging organizational knowledge has remained fragmented in the construction industry until recent years. In addition, companies have begun to realize that actual returns on this investment in network technologies would be far less than initial expectations if online efforts do not incorporate companies' general offline knowledge management efforts, which are done without the use of computer network. Thus, this paper focused on assessment of implementing current Lessons-Learned Systems at the large construction companies in Korea to provide the foundation for developing a renovated conceptual Lessons-Learned System model.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2015.05a
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• pp.93-96
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• 2015

In this paper, we introduce a fire detection system using context-aware sensor. In existing weather and based on vision sensor of fire detection system case, acquired image through sensor of camera is extracting features about fire range as processing to convert HSI(Hue, Saturation, Intensity) model HSI which is color space can have durability in illumination changes. However, in this case, until a fire occurs wide range of sensing a fire in a single camera sensor, it is difficult to detect the occurrence of a fire. Additionally, the fire detection in complex situations as well as difficult to separate continuous boundary is set for the required area is difficult. In this paper, we propose an algorithm for real-time by using a temperature sensor, humidity, Co2, the flame presence information acquired and comparing the data based on multiple conditions, analyze and determine the weighting according to fire it. In addition, it is possible to differential management to intensive fire detection is required zone dividing the state of fire.

• The Journal of the Korea Contents Association
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• v.17 no.9
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• pp.132-144
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• 2017

The fingerprint classification of categorizing fingerprints by classes should be used in order to improve the processing speed and accuracy in a fingerprint recognition system using a large database. The fingerprint classification methods extract features from the fingerprint ridges of a fingerprint and classify the fingerprint using learning and reasoning techniques based on the classes defined according to the flow and shape of the fingerprint ridges. In earlier days, many researches have been conducted using NIST database acquired by pressing or rolling finger against a paper. However, as automated systems using live-scan scanners for fingerprint recognition have become popular, researches using fingerprint images obtained by live-scan scanners, such as fingerprint data provided by FVC, are increasing. And these days the methods of fingerprint classification using Deep Learning have proposed. In this paper, we investigate the trends of fingerprint classification technology and compare the classification performance of the technology. We desire to assist fingerprint classification research with increasing large fingerprint database in improving the performance by mentioning the necessity of fingerprint classification research with consideration for fingerprint images based on live-scan scanners and analyzing fingerprint classification using deep learning.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.3
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• pp.477-483
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• 2016

In this paper, we propose a distributed user scheduling with interference-aware power control (IAPC) to maximize signal to generating interference plus noise ratio (SGINR) in uplink multi-cell networks. Assuming that the channel reciprocity time-division duplexing (TDD) system is used, the channel state information (CSI) can be obtained at each user from pilot signals from other BSs. In the proposed scheduling, to be specific, each user reduces the transmit power if its generating interference to other BSs is larger than a predetermined threshold. Each BS selects the user with the largest SGINR among users. Simulation results show that the proposed technique significantly outperforms the existing user scheduling algorithms. It is worth noting that the proposed technique operates with distributed manner without information exchange among cells. Hence, it can be easily applied to the practical wireless systems like 3GPP LTE without significant modifications of the specification.