• 한국항해항만학회:학술대회논문집
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• 한국항해항만학회 2019년도 추계학술대회
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• pp.59-61
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• 2019

유인등대 무인화 구축에 있어 효율적인 관리와 운영을 위해 표준화된 시스템 구축이 필요하며, 등대의 역할 중 가장 중요한 등명기에 대해 회전식 등명기를 효율적으로 관리운영시스템으로 관리하기 위해 상태 감시 및 제어를 위한 RTU 표준 프로토콜을 제정하여 효율적인 관리를 통해 해상교통안전에 만전을 기하고자 한다.

• 한국물환경학회지
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• 제22권2호
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• pp.238-243
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• 2006

In order to improve the water quality of stream water, the facilities equipped with rope media filter have been examined as a part of national projects. This work may provide design and operating parameters from 2 years monitoring for 2 streams. Depending on the characteristics of streams, the flow rate into the facilities were shown different, where K stream was almost the same and D stream was less than 25% of design flow rate. Although the clogging of filter media was not observed during the operation, the removal of accumulated sludges was required for the stable operation. The removal efficiencies of BOD, SS, T-N and T-P for D stream were 60.5%, 80.1%, 25.2% and 36.2%, respectively. The most important factor for the construction of stream water purification facilities was recommended for the selection of proper sites.

• 한국철도학회:학술대회논문집
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• 한국철도학회 1998년도 추계학술대회 논문집
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• pp.210-218
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• 1998

The ATO(Automatic Train Operation) System is used for train operation instead of drivers. It is interfaced with TCMS(Train Control and Monitoring System) and ATC/TWC system in the train and wayside facilities. In this paper describes configuration of ATO, specification of ATO hardware, construction of ATO software and the algorithm fur automatic train speed regulation in the carborn ATO system. ATO Application Software is consist of ART, SPR, REG, SRV and PSM tasks. ART task is main control part of the ATO that determine ATO control, ATO mode, state transition. SPR determine speed reference according to train motion status, track data, train data and restricted train speed. REG task regulated train speed form the starting of one station to the precision stop at the other station under the result of ART and SPR tasks. In this paper, a algorithm for the train speed regulation while running is described.

• 한국지하수토양환경학회지:지하수토양환경
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• 제12권6호
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• pp.92-99
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• 2007

우리나라 지하수수질측정망은 2007년 현재 환경부가 관리하고 있는 오염우려지역 781개 지점 및 일반지역 1,240개 지점과 건설교통부에서 관리하고 있는 국가지하수관측망 478지점을 합쳐 총 2,499지점으로 구성되어 운영되고 있다. 1999년 이후 측정망 운영에 따른 지하수의 수질분석 결과를 매년 발표하고 있지만, 지하수수질측정망 지점에 대한 관정의 현황 정보는 제공하지 못하였다. 이에 본 연구에서는 지하수수질측정망의 운영현황, 지점선정 및 관정 정보등 현황을 평가하여 특성을 파악하고자 하였으며, 이를 통하여 향후 지하수수질측정망의 개선방안을 고찰하고자 하였다.

• Asian Journal of Atmospheric Environment
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• 제12권3호
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• pp.232-243
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• 2018

The construction, development and maintenance of an economically, environmentally and socially sustainable campus involves the integration of measuring tools and technical information that invites and encourages the community to know the actual state to generate positive actions for reducing the negative impacts over the local environment. At the Universidad Nacional de Colombia - Campus $Bogot{\acute{a}}$, a public area with daily traffic of more than 25000 people, the Environmental Management Bureau has committed with the monitoring of the noise pollution and air quality, as support to the campaigns aiming to reduce the pollutant emissions associated to the student's activities and campus operation. The target of this study is based in the implementation of mobile air quality and sonometry monitoring equipment, the mapping of the actual air quality and noise pollution inside the university campus as a novel methodology for a sub-area inside a megacity. This results and mapping are proposed as planning tool for the institution administrative sections. A mobile Kunak$^{(R)}$ Air & OPC air monitoring station with the capability to measure particulate matter $PM_{10}$, $PM_{2.5}$, Ozone ($O_3$), Sulfur Oxide ($SO_2$), Carbon Monoxide (CO) and Nitrogen Oxide ($NO_2$) as well as Temperature, Relative Humidity and Latitude and Longitude coordinates for the data georeferenciation; and a sonometer Cirrus$^{(R)}$ 162B Class 2 were used to perform the measurements. The measurements took place in conditions of academic activity and without it, with the aim of identify the impacts generated by the campus operation. Using the free code geographical information software QGIS$^{(R)}$ 2.18, the maps of each variable measured were developed, and the impacts generated by the operation of the campus were identified qualitative and quantitively. For the measured variables, an increase of around 21% for the $L_{Aeq}$ noise level and around 80% to 90% for air pollution were detected during the operation period.

• 국제학술발표논문집
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• The 9th International Conference on Construction Engineering and Project Management
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• pp.418-425
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• 2022

For a commercial building, property managers play an important role in maximizing the benefit by reducing cost and increasing revenue in the operation and maintenance phase of the building. However, most of property managers are spending their time in monitoring facility managers who have little impact on cost reduction and maximization of operating profit. The industry practitioners have difficutlty in increasing the efficiency of thier work due to this work environment. In addition, both property managers(PMr) and facility managers(FMr) are dependent on the paper drawings and manuals, which can worsen the inefficiency and human errors are inevitable. This study aims to contribute to improvement of the current practice by developing a novel algorithm that autmatically links the facility information with 3D model, which can provide an efficient property management for commercial buildings.

• 한국재난관리표준학회지
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• 제2권3호
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• pp.47-53
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• 2009

본 연구에서는 기구축 계측시스템의 안전관리 네트워크 시스템(국토해양부, 2008) 연계 가능성을 타진하기 위해서 신공항하이웨이(주) 관할 현수교인 영종대교 계측시스템의 안전관리 네트워크 시스템 연계 시범구축을 실시하였다. 기구축 계측시스템 데이터 연계를 위하여 DAQ Sender 서버 프로그램과 DAQ Receiver 서버 프로그램으로 구성되는 연계 프로그램을 개발하였다. DAQ Sender 서버 프로그램은 기구축 계측시스템 전산센터 내 중립지역 (DMZ ZONE)de미리 설치 서버계서버설치되운영되는 프로그램으로 기구축 계측시스템과의 통신을 담당한다. DAQ Receiver 서버 프로그램은 안전 관리 네트워크 시스템 통합운영 센터 내 연계서버에 설치되어 운영되는 프로그램으로 DAQ Sender와 통신을 통해 실시 간 및 기간이력 데이터를 수집하고 이를 통합운영 서버에 저장하는 역할을 수행한다. 본 시범구축 결과 기구축 계측시스템으로부터 연계항목을 구성하고 실시간 및 기간이력 데이터를 성공적으로 연계 할 수 있었다. 따라서 향후 각 기구축 계측시스템들을 통합할 때 필요한 연계방안의 토대를 마련할 수 있었다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2008년도 정기학술발표대회 논문집
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• pp.720-724
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• 2008

급변하는 기업 경영 환경 속에서 기업의 무형자산의 가치에 대한 관심이 높아지고 있다. 이러한 흐름의 하나로 지식경영이 많은 기업에서 도입되고 있으며, 다양한 참여자와 업무 수행자의 역량이 프로젝트 성패에 큰 영향을 끼치는 건설 산업에서도 지식경영을 도입하는 사례가 증가하고 있다. 하지만 업무 프로세스와 연계되지 못한 지식경영시스템으로 인해 기대한 효과를 거두지 못하는 경우가 많은 현실이다. 이에 본 연구는 업무 프로세스를 중심으로 IT시스템, 업무 수행자의 통합을 목표로 하는 BPM의 주요 기능인 업무 프로세스의 설계, 운영, 모니터링, 지속적인 개선 등을 검토하고, 기존 지식분류체계가 가지고 있는 문제점을 분석, 그 개선기회를 도출하여 BPM 도입을 통한 건설기업의 성공적인 지식경영을 위한 지식분류체계 개선 방법을 제안한다.

• 산업경영시스템학회지
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• 제46권spc호
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• pp.1-8
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• 2023

To investigate the national science and technology policy direction in the field of construction machinery, an analysis was conducted on projects selected as national research and development (R&D) initiatives by the government. Assuming that the project titles contain key keywords, text mining was employed to substantiate this assumption. Project information data spanning nine years from 2014 to 2022 was collected through the National Science & Technology Information Service (NTIS). To observe changes over time, the years were divided into three-year sections. To analyze research trends efficiently, keywords were categorized into groups: 'equipment,' 'smart,' and 'eco-friendly.' Based on the collected data, keyword frequency analysis, N-gram analysis, and topic modeling were performed. The research findings indicate that domestic government R&D in the construction machinery field primarily focuses on smart-related research and development. Specifically, investments in monitoring systems and autonomous operation technologies are increasing. This study holds significance in analyzing objective research trends through the utilization of big data analysis techniques and is expected to contribute to future research and development planning, strategic formulation, and project management.

• Smart Structures and Systems
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• 제21권1호
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• pp.123-137
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• 2018

Structural monitoring is the most important part of the construction and operation of the embankment dams. Appropriate instruments selection for dams is vital, as inappropriate selection causes irreparable loss in critical condition. Due to the lack of a systematic approach to determine adequate instruments, a framework based on three comparable Multi-Attribute Decision Making (MADM) methods, which are VIKOR, technique of order preference by similarity to ideal solution (TOPSIS) and Preference ranking organization method for enrichment evaluation (PROMETHEE), has been developed. MADM techniques have been widely used for optimizing priorities and determination of the most suitable alternatives. However, the results of the different methods of MADM have indicated inconsistency in ranking alternatives due to closeness of judgements from decision makers. In this study, 9 criteria and 42 geotechnical instruments have been applied. A new method has been developed to determine the decision makers' importance weights and an aggregation method has been introduced to optimally select the most suitable instruments. Consequently, the outcomes of the aggregation ranking correlate about 94% with TOPSIS and VIKOR, and 83% with PROMETHEE methods' results providing remarkably appropriate prioritisation of instruments for embankment dams.