• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.391-396
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• 2013

As the construction environment has been changing all the times, the techniques for managing the construction projects have been improved accordingly. The schedule management technique, one of the construction management tools, has been evolved as well in order to be adaptable to new construction environment. Most of newly proposed scheduling techniques have been based on the Critical Path Method (CPM) that was proposed in 1956. The CPM is classified into two categories, Arrow Diagramming Method (ADM) and Precedence Diagramming Method (PDM). ADM is so good in the visual format but it cannot express the overlapping relationships between two consecutive activities. On the other hand, PDM can express the overlapping relationships but it is unsatisfactory in the visual format. Recently, as the construction environment becomes more complex and the role of schedule management becomes more and more important, the overlapping expression becomes one of critical factors for scheduling as well. Most of construction project participants prefer more comfortable visual format, however, the scheduling software based on the PDM cannot satisfy their basic requirement. Beeliner, new scheduling software based on the Beeline Diagramming Method (BDM) that was proposed in 2010, was developed in 2012, it can express more flexible overlapping relationships and has superior visual format as well. This paper presents major features and applications of Beeliner, and makes construction professionals understand new scheduling concept and its applications.

• 한국터널지하공간학회 논문집
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• 제13권3호
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• pp.159-176
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• 2011

현재 3차원 레이저 스캐너는 게임, 영화, 의료, 미술, 디자인 분야 등 다양한 분야에서 널리 사용되고 있다. 토목분야에서는 교량 및 터널에 3차원 레이저 스캐너를 이용한 시공관리 방안 및 적용에 관한 연구가 다수 수행되었다. 그러나 3차원 레이저 스캐너로 얻어진 데이터의 용량이 너무 크고 우리나라 현장 실정에 적합한 소프트웨어가 없는 것이 현실이다. 따라서 본 연구에서는 3차원 레이저 스캐너의 데이터를 신속하게 처리할 수 있도록 데이터베이스를 구축하였으며, 터널의 미굴 여굴 여부 판단, 균열 누수 백태를 확인할 수 있는 소프트웨어를 개발하였다. 또한 실제 터널 현장에 3차원 레이저 스캐너를 사용하여 3차원 레이저 스캐너와 소프트웨어를 검증하였다. 이는 터널 시공 중 시공관리 및 시공 후 유지관리에도 기여할 수 있을 것으로 예상된다.

• 한국측량학회:학술대회논문집
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• 한국측량학회 2003년도 추계학술발표회 논문집
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• pp.257-262
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• 2003

This study is aimed to research the management methodology for the process of GIS database construction. In general, used methodologies are made for the purpose of application program development. And the methodologies reflected GIS characteristics are also applied for GIS software development. But the software methodologies are never introduced to construction of GIS database. In this study, various common methodologies are investigated and analyzed, and the methodology which include the characteristic of GIS database construction process as work steps and detail paths is developed and suggested.

• 한국정보통신학회논문지
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• 제22권4호
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• pp.648-655
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• 2018

정부는 SW 중심사회 실현을 위해 SW 산업에 대한 정책역량을 집중해 왔으며, 이를 통해 SW 산업은 지속적인 발전을 거듭하고 다양한 산업들과의 융합을 통해 고부가가치 산업으로서 그 중요성과 시장이 폭발적으로 확대되고 있다. 그러나 소프트웨어 산업에 치중된 급격한 지원 정책들로 인해 사업자 선정 혼란에 따른 시공품질 저하, 업역(시장)분쟁 등 다양한 문제와 부작용이 발생하고 있다. 따라서 본 논문에서는 급속한 시장 변화에 따른 소프트웨어 지원 정책 및 관련 법령들에 대한 문제점과 관련 원인을 파악하고 그에 따른 개선안을 제안함으로써, 복합적 ICT 산업의업역 명확화(소프트웨어 및 정보통신공사업)를 통해 사업자 선정 혼란에 따른 문제점들을 최소화하고자 한다.

• International Journal of Internet, Broadcasting and Communication
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• 제15권2호
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• pp.168-174
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• 2023

In the current world, with the massive scale of SOC construction, it is difficult to diagnose and check all of a bridge's abnormal states with even the experts' eyes for maintenance. It is because we should spend huge costs and time on maintenance. Still, there are not many alternative ways to inspect bridges remotely regarding accuracy or reality. Therefore, we remark on the advantages and disadvantages of previous methods through practices in SOC maintenance. To inspect the abnormal state of the Bridge, we suggest inspecting bridges with an Augmented Reality (AR) mechanism to reduce cost, human resource consumption, and the risk of work. Through the proposed approach, we expect that it provides ways to solve massive construction problems with software-based technologies.

• 한국측량학회지
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• 제21권1호
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• pp.89-97
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• 2003

This study is aimed at standardizing the process of spatial database construction and developing a software tool for process management. Knowhow of five GIS firms and provisions of NGI(National Geography Institute) was analyzed. In this study, the process of spatial database construction was standardized. The system from this study has the capability to manage the process of construction database using GIS and to deal with the metadata of unit map, generated from the process, systematically and continuously. The process was also shown by using either Gantt chart or PERT chart after developing an interface for "MS Project". A software "Visual Basic for Application" was used for this study.

• 산업경영시스템학회지
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• 제18권35호
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• pp.115-122
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• 1995

This paper is developed with software system for the construction of periodic maintenance. The system includes records of equipment, maintenance work, failure mode analysis and work standards of maintenability, inspection & repair to establish periodic maintenance system. And the software program is designed with user-oriented to analyze maintenance data and maintenance system of periodic interval times. Also machine operator can easily apply maintenance management system in production & manufacturing field. Visual Basic in the environment of Window system is used as computer program language for graphics and data base management in IBM PC.

• 한국인공지능학회지
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• 제11권1호
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• pp.17-24
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• 2023

With the continuous growth in the amount of data collected and analyzed, deep learning has become increasingly popular for extracting meaningful insights from various fields. However, hardware limitations pose a challenge for achieving meaningful results with limited data. To address this challenge, this paper proposes an algorithm that leverages the characteristics of convolutional neural networks (CNNs) to reduce the size of image datasets by 20% through smoothing and shrinking the size of images using color elements. The proposed algorithm reduces the learning time and, as a result, the computational load on hardware. The experiments conducted in this study show that the proposed method achieves effective learning with similar or slightly higher accuracy than the original dataset while reducing computational and time costs. This color-centric dataset construction method using image smoothing techniques can lead to more efficient learning on CNNs. This method can be applied in various applications, such as image classification and recognition, and can contribute to more efficient and cost-effective deep learning. This paper presents a promising approach to reducing the computational load and time costs associated with deep learning and provides meaningful results with limited data, enabling them to apply deep learning to a broader range of applications.

• 한국측량학회지
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• 제34권4호
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• pp.425-430
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• 2016

Currently, start of the operation US GPS, the Russian Glonass, European Galileo, the Chinese Compass satellites for positioning are celebrating a true GNSS (Global Navigation Satellite System) generation. Korea is building advanced infrastructure such as a national network consisting of CORS (Continuously Operating Reference Station), VRS service for real-time precise positioning and perform continuous upgrading. However, the acquisition of geospatial information using the national infrastructure requires many steps and high dependence on foreign software part in this process. This study contributes to advanced construction technology of geospatial information by design of realtime GNSS surveying system. As a results, it has designed the surveying software that can effectively positioning realtime. Designed realtime surveying software can utilized in various fields.

• 드라이브 ㆍ 컨트롤
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• 제2권1호
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• pp.3-9
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• 2005