• Title/Summary/Keyword: Construction Management Services

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Development of Mobile Monitoring System for Home Security (홈 시큐리티를 위한 모바일 모니터링 시스템 개발)

  • Wang, Jong Soo;Seo, Doo Ok
    • Journal of Korea Society of Digital Industry and Information Management
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    • v.5 no.1
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    • pp.43-49
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    • 2009
  • Network industry is complex combined with various fields of industry, such as communication, broadcast, construction, and home appliances. Moreover, it's fairly lucrative since the growth industry makes lots of added values, interacting with the others. The network industry, usually called 'Ubiquitous', connects some home appliances and makes an integrated system that you can use them with whenever and wherever. A demand for network security, however, has skyrocketed due to the relatively low safety. It's been expected that the market of home security is going to be grown up nearly 30 percent every year. Recently, analog surveilance cameras have been replaced with digital ones, and they will be providing stronger security services taking advantage of mutual interaction with related industies. In this paper, a mobile monitoring system for home security is proposed, which makes it possible to supervise all home appliances wherever you're, using the conventional wired/wireless network infra.

Designing Cost Effective Open Source System for Bigdata Analysis (빅데이터 분석을 위한 비용효과적 오픈 소스 시스템 설계)

  • Lee, Jong-Hwa;Lee, Hyun-Kyu
    • Knowledge Management Research
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    • v.19 no.1
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    • pp.119-132
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    • 2018
  • Many advanced products and services are emerging in the market thanks to data-based technologies such as Internet (IoT), Big Data, and AI. The construction of a system for data processing under the IoT network environment is not simple in configuration, and has a lot of restrictions due to a high cost for constructing a high performance server environment. Therefore, in this paper, we will design a development environment for large data analysis computing platform using open source with low cost and practicality. Therefore, this study intends to implement a big data processing system using Raspberry Pi, an ultra-small PC environment, and open source API. This big data processing system includes building a portable server system, building a web server for web mining, developing Python IDE classes for crawling, and developing R Libraries for NLP and visualization. Through this research, we will develop a web environment that can control real-time data collection and analysis of web media in a mobile environment and present it as a curriculum for non-IT specialists.

A Proposal of Features of Cloud Computing Service for BIM based Architectural Design Management (BIM 기반 건축설계 관리 지원을 위한 클라우드 컴퓨팅 서비스 기능 제안)

  • An, Min-Gyu;Choi, Jong-Moon;Lee, Jaewook;Yoon, Su-Won
    • Journal of KIBIM
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    • v.4 no.2
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    • pp.17-24
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    • 2014
  • Recently, there have been various attempts for the adoption and spread of Building Information Modeling (BIM) in the construction industry. However, the spread of BIM has been less satisfied than expected, because of the insufficient, expensive hardware and software for the authoring, analysis and so forth. As a solution to resolve the obstacles, the applications of cloud computing technology to BIM have been introduced. Due to the vendor-dependent functions and lack of verification on the work process, the spread of cloud-based BIM has been limited in Korea. Therefore, this study proposes the functions of cloud computing services which can support BIM-based design processes through the review of practitioners, questionnaire survey and analysis of design process.

Field Experiments on Features of Airflow through Open Door in Pressure Differential System (급기가압 제연시스템의 피난문 개방시 방연풍속 형성특성에 대한 현장실험)

  • Kim, Jung-Yup;Rie, Dong-Ho;Kim, Ha-Young
    • Proceedings of the SAREK Conference
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    • 2008.06a
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    • pp.463-467
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    • 2008
  • The fact that the major cases of life casualties are from smoke in the fire accidents and the expected steep increase of skyscrapers, huge spaces, multiplexes and huge scaled underground spaces demand establishment of efficient smoke countermeasure. The field experiments on pressure differential systems for smoke management in two high buildings of 20 stories and 21 stories are carried out to evaluate the features of airflow through open door between accommodation and lobby. The procedures and results of experiments are presented.

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U-City Service Taxonomy and Define for Construction of U-City Management Center (U-City 통합운영센터 구축을 위한 서비스 분류 및 정의에 관한 연구)

  • Baek, Nam-Seok;Kim, Byoung-Gun;Leem, Choon-Seong
    • 한국IT서비스학회:학술대회논문집
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    • 2009.05a
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    • pp.110-114
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    • 2009
  • 최근 정보기술과 유비쿼터스기술을 바탕으로 도시를 미래화하는 유비쿼터스도시(U-City)구축이 범 국가적으로 추진되고 있다. 이에, 정부에서는 2008년 9월 25일 유비쿼터스도시의 건설 등에 관한 법률 시행령을 발표하였으며, 유비쿼터스도시서비스(U-City Service)를 크게 행정, 교통, 보건 의료 복지, 환경, 방범 방재, 시설물 관리, 교육, 문화 관광 스포츠, 물류, 근로 고용 등의 분야로 구분하였다. 이러한 유비쿼터스도시서비스를 제공하고 운영 및 관리하는 시설로 유비쿼터스도시 통합운영센터(U-City Management Center)는 다양한 유비쿼터스도시서비스를 효과적으로 연계하여 서비스에서 발생되는 다양한 도시정보를 통합, 분석하고 제공하는 유비쿼터스도시 핵심기능을 담당한다. 하지만 이러한 유비쿼터스도시 통합운영센터의 구축은 운영조직구성, 운영비용확보, 통합서비스 제공방안, 법 제도 정비 등의 해결과제를 가지고 있어 구현방안에 대한 구체적인 연구가 요구된다. 본 연구에서는 선행연구를 바탕으로 유비쿼터스도시 통합운영센터에서 기본적으로 제공되어야 할 유비쿼터스도시서비스 유형을 제시하고 정의한다.

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Numerical Analysis on Features of Airflow through Open Door in Pressure Differential System (급기가압 제연시스템의 방연풍속 형성특성에 대한 수치해석적 분석)

  • Kim, Jung-Yup;Rie, Dong-Ho;Kim, Ha-Young
    • Proceedings of the SAREK Conference
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    • 2008.11a
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    • pp.463-468
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    • 2008
  • The fact that the major cases of life casualties are from smoke in the fire accidents and the expected steep increase of skyscrapers, huge spaces, multiplexes and huge scaled underground spaces demand establishment of efficient smoke countermeasure. In pressure differential systems for smoke management, the speed of airflow through open door between accommodation and lobby should be maintained over 0.5m/s on the whole area of door to prevent smoke from infiltrate into evacuation root when the door is open for refuge. The numerical analysis on features of airflow through open door are carried out and the results are presented.

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A Lifelog Common Data Reference Model for the Healthcare Ecosystem (디지털 헬스케어 생태계 활성화를 위한 라이프로그 공통데이터 참조모델)

  • Lee, Young-joo;Ko, Yoon-seok
    • Knowledge Management Research
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    • v.19 no.4
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    • pp.149-170
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    • 2018
  • Healthcare lifelog, a personal record relating to disease treatment and healthcare, plays an important role in healthcare paradigm shifts in which medical and information technology converge. Healthcare services based on various healthcare lifelogs are being launched domestically by both large corporations and small and medium enterprises, however, they are being built on an individual platform that is dependent on each company. Therefore, the terms of lifelog data are different as well as the measurement specifications are not uniform. This study proposes a reference model for minimum common data required for sharing and utilization of healthcare lifelog. Literature study and expert survey derived 3 domain, 17 essential items, and 51 sub-items. The model provides definition, measurement data format, measurement method, and precautions for each detailed measurement item, and provides necessary guidelines for data and service design and construction for healthcare service. This study has its significance as a basic research supporting the activation of ecosystem by ensuring interoperability of data between heterogeneous healthcare devices linked to digital healthcare platform.

A Study on Construction & Management of Urban Spatial Information Based on Digital Twin (디지털트윈 기반의 도시 공간정보 구축 및 관리에 관한 연구)

  • Lih, BongJoo
    • Journal of Cadastre & Land InformatiX
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    • v.53 no.1
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    • pp.47-63
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    • 2023
  • The Seoul Metropolitan Government is building and operating digital twin-based urban spatial information to solve various problems in the city and provide public services. Two essential factors to ensure the stable utilization of spatial information for the implementation of such a digital twin city are the latest and quality of the data. However, it is time-consuming and costly to maintain continuous updating of high-quality urban spatial information. To overcome this problem, we studied efficient urban spatial information construction technology and the operation, management, and update procedures of construction data. First, we demonstrated and applied automatic 3D building construction technology centered on point clouds using the latest hybrid sensors, confirmed that it is possible to automatically construct high-quality building models using high-density airborne lidar results, and established an efficient data management plan. By applying differentiated production methods by region, supporting detection of urban change areas through Seoul spatial feature identifiers, and producing international standard data by level, we strengthened the utilization of urban spatial information. We believe that this study can serve as a good precedent for local governments and related organizations that are considering activating urban spatial information based on digital twins, and we expect that discussions on the construction and management of spatial information as infrastructure information for city-level digital twin implementation will continue.

Economic Feasibility Analysis of Nationwide Expansion of Agro-meteorological Early Warning Service for Weather Risk Management in Korea (농업기상재해 조기경보서비스의 전국 확대에 따른 경제적 타당성 분석)

  • Sangtaek Seo;Yun Hee Jeong;Soo Jin Kim;Kyo-Moon Shim
    • Korean Journal of Agricultural and Forest Meteorology
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    • v.25 no.3
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    • pp.236-244
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    • 2023
  • The purpose of this study was to examine the economic feasibility of providing services according to the nationwide expansion of early warning services. The net present value method, one of the cost-benefit analysis methods, was applied to the analysis. As a benefit item that constituted the net present value, the damage reduction amount using crop insurance data and the willingness to pay for the use of early warning services were used. The cost items included system construction and maintenance costs, and text transmission costs. As a result of the analysis, it was found that the nationwide expansion of early warning services had economic feasibility, and its economic effect varied depending on the level of text message use (10 % to 40 %, 10 %p interval) of participating farmers. In the future, the economic effect of early warning services is expected to increase further due to the increase in the number of farmers participating in early warning services and the increase in crop damage caused by climate change. It is necessary to further enhance the economic effect of early warning services by actively utilizing information delivery means through apps or the web as well as text messages.

Situation Analysis of Work Performance on the Occupational Health Nursing Services Provided in Small Scale Enterprises of Korea (보건관리대행 산업간호사의 업무수행 실태분석)

  • Yoo, Kyung Hae;Ahn, Sung Hee;Cha, Nam Hyun;Song, Yean Ee;Kim, Jeong Ah;Yang, Su Hyung
    • Korean Journal of Occupational Health Nursing
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    • v.7 no.2
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    • pp.186-199
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    • 1998
  • Necessity for the guidebook of occupational health nursing practice has been perceived by our OH research members since the health management of small scale enterprises(SSE) was controlled by law. Mean-while, developing the OH manual, our team found that the work situation of occupational health nursing(OHN) services should be prior to the construction of the OHN manual. This procedure was regarded as helpful for producing the OH manual which is fitting to the Korean nursing circumstances. Thus, this study was planned and carried out. The study aimed to find out current situation of work performance on occupational health nursing practice perceived by nurses working for health management of SSE. Questionnaire was distributed to the OH nurses working in the 55 group occupational health service(GOHS) agencies throughout the Korea from January to March in 1997. Ninety-seven nurses of the 31 GOHS agencies responded. Descriptive statistics was used in the SAS programme. Four nurses participated to select nursing area investigated in the study. Those area were 'document', 'job orientation', 'OH reference', 'nursing theory', 'group health education', 'health examination', 'work dilemma', 'approach attitude', 'workplace visit', 'health promotion' and 'communication'. Results can be summarized as follow : Types of document were mentioned diversely depending on the GOHS agencies. Job orientation was seen to be performed by nurses in 56% among the 75.3% nurses responded. Sixty five percents of nurses agreed to apply nursing theories into the OH with lack of knowledge on them. Health screening and health education were responded as commonly provided nursing activities with various nursing obstacles as well as indicated in the area of 'work dilemma', 'approach attitude', 'workplace visit', 'health promotion'.

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