http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 박수열(Su-Yeul Park) (검색결과 13 건)
- 무료
- 기관 내 무료
- 유료
-
-
건설현장 3차원 점군 데이터 정합 정확성 향상을 위한 중첩비율 분석
박수열(Park, Su-Yeul),김석(Kim, Seok) 한국BIM학회 2021 KIBIM Magazine Vol.11 No.4
Comparing to general scanning data, the 3D digital map for large construction sites and complex buildings consists of millions of points. The large construction site needs to be scanned multiple times by drone photogrammetry or terrestrial laser scanner (TLS) survey. The scanned point cloud data are required to be registrated with high resolution and high point density. Unlike the registration of 2D data, the matrix of translation and rotation are used for registration of 3D point cloud data. Archiving high accuracy with 3D point cloud data is not easy due to 3D Cartesian coordinate system. Therefore, in this study, iterative closest point (ICP) registration method for improve accuracy of 3D digital map was employed by different overlap ratio on 3D digital maps. This study conducted the accuracy test using different overlap ratios of two digital maps from 10% to 100%. The results of the accuracy test presented the optimal overlap ratios for an ICP registration method on digital maps.
-
-
건설현장 적용을 위한 디지털맵 노이즈 제거 알고리즘 성능평가
박수열,김석,Park, Su-Yeul,Kim, Seok 한국BIM학회 2020 KIBIM Magazine Vol.10 No.4
In recent years, the construction industry is getting bigger and more complex, so it is becoming difficult to acquire point cloud data for construction equipments and workers. Point cloud data is measured using a drone and MMS(Mobile Mapping System), and the collected point cloud data is used to create a 3D digital map. In particular, the construction site is located at outdoors and there are many irregular terrains, making it difficult to collect point cloud data. For these reasons, adopting a noise reduction algorithm suitable for the characteristics of the construction industry can affect the improvement of the analysis accuracy of digital maps. This is related to various environments and variables of the construction site. Therefore, this study reviewed and analyzed the existing research and techniques on the noise reduction algorithm. And based on the results of literature review, performance evaluation of major noise reduction algorithms was conducted for digital maps of construction sites. As a result of the performance evaluation in this study, the voxel grid algorithm showed relatively less execution time than the statistical outlier removal algorithm. In addition, analysis results in slope, space, and earth walls of the construction site digital map showed that the voxel grid algorithm was relatively superior to the statistical outlier removal algorithm and that the noise removal performance of voxel grid algorithm was superior and the object preservation ability was also superior. In the future, based on the results reviewed through the performance evaluation of the noise reduction algorithm of this study, we will develop a noise reduction algorithm for 3D point cloud data that reflects the characteristics of the construction site.
-
-
박수열(Su-Yeul Park),윤원건(Won-Gun Yun),강고운(Go-Une Kang),김석(Seok Kim) 한국산학기술학회 2021 한국산학기술학회논문지 Vol.22 No.4
국내에서 항만의 방파제는 안전점검 및 안전진단을 통해 기술적 상태평가를 수행하고, 필요 시 해당 시설물에 대해 유지관리를 수행한다. 그러나 최근 생애주기비용(Life Cycle Cost, LCC) 측면에서 기반시설에 대한 관리의 필요성이 증가함에 따라 「지속가능한 기반시설 관리 기본법」이 제정되고, 방파제의 기술적 부분만 평가했던 기존 평가방식에 경제성 평가 및 정책성 평가가 추가되어 성능개선을 통해 방파제에 대한 종합적인 관리가 가능해질 것으로 예측하고 있다. 이러한 이유로 본 연구는 「지속가능한 기반시설 관리 기본법」에서 규정하고 있는 총공사비 500억 미만의 방파제 성능개선사업을 대상으로 성능개선사업의 세부평가항목 및 방법 등을 개발하여 평가방안을 제시하고, 향후 실무에 적용될 성능개선 평가를 위한 방파제 성능개선 평가항목 및 평가방법의 개발 방향을 제시하는 것을 목적으로 연구를 수행하였다. 본 연구는 유지관리 및 성능개선의 개념 검토, 성능개선 관련 문헌조사, 성능개선 공통기준 사업유형 검토, 방파제 성능개선 평가항목 및 평가방법(안) 도출, 전문가 검토 등의 순서로 수행하였으며, 도출한 방파제 성능개선에 대한 평가방안은 지금까지 기술적 상태평가에 국한된 유지관리 업무에 성능개선을 적용한 구체적인 평가방법을 제시한 것으로 시설물의 선제적 관리 및 안전사고 예방에 활용 가능할 것으로 기대된다. Domestically, technical condition evaluation for breakwaters has been conducted through safety checks and safety diagnosis. If necessary, maintenance for the facility is conducted. However, in recent years, the need for infrastructure management has been increasing from a life-cycle-cost perspective. For these reasons, the “Sustainable Infrastructure Management Basic Act” was enacted. Previously, only the technical part of the breakwaters was evaluated. However, based on the act, comprehensive management of breakwaters will be possible through performance improvement by adding economic and political evaluations. In this study, evaluation factors and evaluation methods were developed for a breakwater rehabilitation project. The purpose of this study is to present a development direction, items, and methods for the evaluation of breakwater performance improvement to be applied in future practice. This study reviews the concept of maintenance and performance improvement, the literature related to performance improvement, and the project type for the common standard of performance improvement. Evaluation items and evaluation methods for breakwater rehabilitation are suggested to be reviewed by experts. The methodology suggested in this study could be used for preventive maintenance and to reduce accidents.
-
박수열,배영훈,박영곤,김석,Park, Su-yeul,Bae, Young-hoon,Park, Young-Kon,Kim, Seok 한국BIM학회 2022 KIBIM Magazine Vol.12 No.3
Railway is compsed in various components, such as subgrade, track bed, sleeper, rail, and overhead line, on a linear space. Therefore, comprehensive work for various design standards and guidelines is required when designing a railway facility. For this reason, much time and effort are required to review the relevant design standards and guidelines. While, automatic legal check system for BIM models has been developed in the architectural engineering, it has not been developed in the railway engineering. This study reviews the korean design standard and the korean code for railway engineering, and suggests some rule items of logical information. Comparing the suggested rule items to the railway BIM library, items of logical information and additional attribute information are obtained. The analysis results of railway design standards and BIM library presented in this study would be utilized for defining rule-set items that is essential for development of the automatic legal check system for railway BIM models.
-
-
박수열(Su-Yeul Park),최수영(Soo-Young Choi),오은호(Eun-Ho Oh),김진만(Jin-Man Kim) 한국산학기술학회 2017 한국산학기술학회논문지 Vol.18 No.4
강우는 자연과 인간에게 중요한 자원이다. 적절한 강우는 농작물의 성장과 토지의 온도를 일정하게 유지시켜줌으로써 우리 사회가 안정적으로 유지되도록 하는 매우 중요한 역할을 한다. 그러나 태풍 및 집중호우 등과 같이 특정 지역에 계획강수량보다 더 많이 발생한 집중강우는 시설물 및 인간에게 커다란 피해를 입히기도 한다. 이에 따라 미국, 일본 등 국외 선진국의 수재해 대응기관들은 시설운영자와 재난전문가, 응급대응인력들에게 가이드라인을 제공하기 위해 수재해 EAP(Emergency Action Plan)를 작성·운영하여 시설물을 보호하고 강화하는데 활용하고 있다. 대표적인 예로, 미국의 FEMA와 DHS는 시설물과 인명을 보호하기 위해 댐, 제방 등을 위한 다양한 EAP를 운영하고 있는데, 특히 FEMA는 EAP를 시설물이나 인명에 가해지는 피해나 기능적 충격과 같은 응급상황을 감소시키기 위해 작성하는 공식문서로 규정하고 있으며, 이 EAP를 통해 응급 시에 발생할 수 있는 모든 상황뿐만 아니라 평상시 발생할 수 있는 시설물관리상의 문제까지 대응이 가능하도록 규정하고 있다. 이에 본 연구에서는 미국, 일본 등 국외주요국과 국내에서 사용중인 EAP 관련 규정을 분석하여 국내 상황에 적합한 EAP 체계를 제안하였다. EAP는 예방, 준비, 대응, 복구의 재난단계별로 시설물과 인명을 보호하기 위해 재난전문가들과 시설운영자들이 취해야 할 업무, 응급장비 운용 등의 내용을 담고 있다. 본 연구를 통해 개발된 EAP 프레임워크는 테스트베드 적용을 통해 적정성을 평가받았으며, 국내 홍수재난 위험을 감소시키기 위한 절차와 방법 개선에 기여할 것으로 기대된다. Unusual precipitation caused by typhoons and severe rain stormscan threaten human life and property. Thus, various organizations prepare emergency action plans (EAPs) to provide proper guidelines for operators, experts, and emergency response personnel to protect and enhance critical infrastructure. For example, FEMA and DHS have various types of EAPs for dams, levees, and other structures to protect people and property. FEMA defines EAPs as official documents to decrease the damage and impact in emergency situations and to reduce casualties. These documents should consider all possible situations in an emergency and can reduce problems in facility management. This study analyzes EAPs for infrastructure from the USA, Japan, and Korea in order to suggest an ideal EAP framework. EAPcontent can include how to guide experts and operators in disaster stages (mitigation, preparedness, response, and recovery), how to operate emergency equipment, and how to protect critical infrastructure and life. The suggested EAP framework performed very well in a test location. It can therefore be used for infrastructure organizations in Korea and to inform of the appropriate processes and methods for risk reduction in flood disasters.
-
ScienceON연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
