• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2020.11a
• /
• pp.31-32
• /
• 2020

정보통신 기술의 발달로 항만 및 항만배후단지에도 다양한 시설물들이 구축되고 있다. 그리고 구축된 항만 및 항만배후단지 시설물들은 「항만법」, 「지하안전관리에 관한 특별법」에 따라 지속적으로 유지관리 및 갱신을 수행하도록 하고 있다. 이에 본 연구에서는 항만 및 항만배후단지에 매설된 지하시설물을 비굴착방식으로 탐사하여 정확도를 확보할 수 있는 방안으로 Coded Signal 기반의 NM-GPR 방식을 제안했다. 그리고 실증을 통해 Coded Signal 기반의 NM-GPR의 정확도를 검토하였으며 향후 개선방향을 제시하였다.

• 한국정보통신설비학회:학술대회논문집
• /
• 2005.08a
• /
• pp.197-200
• /
• 2005

도로에는 많은 종류의 지하시설물이 매설되어 있어 이에 대한 효율적인 관리를 위해 1995 년부터 국가적으로 국가지리정보체계 (NGIS:National Geographic Information System) 구축사업을 시작하였고, 많은 지방자치단체에서도 지하시설물 전산화를 통하여 시설물에 대한 DB 를 구축하여 전반적인 관리시스템을 갖추어 놓았다. 아울러 지하시설물 기관별로도 별도의 유지관리시스템을 구축하여 운용하고 있다. KT 에서도 TOMS(선로도면시설관리시스템: Telephone Outside-plant Management System)를 이용하여 도면전산 DB로 활용하고 있으며 이를 기반으로 TOPS (선로시설설계시스템:Telephone Outside Plant Design System)로 공사 설계를 하고 있다. 하지만 지하시설물로써 원초적인 관로에 대한 설계시스템은 도면의 hand drawing 작성방식으로 도시 한후 MS windows 환경의 excel로 설계함에 따라 설계시간이 많이 소요 되는 실정이다. 따라서, 본 프로그램의 개발은 KT 통신 network 구축에 필요한 맨홀 및 관로등의 지하시설물에 대한 공사설계의 툴로써 전산화 설계를 가능하게 하고 공사감리업무 종사자들의 업무환경 개선을 위해 개발 하였다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.38 no.6
• /
• pp.533-542
• /
• 2020

This study proposes the logical data model design of a spatial data model that complies with international standards for the waterworks of underground facilities. We conduct a preliminary study related to underground spatial data standards and data models, and review the status of the existing systems. Then, we defined the conceptual design direction of underground spatial data model based on the problems and issues. Next, we defined the terminology, classification, semantic relationships of waterworks. Next, for the conceptual design of the underground spatial data model, we defined the naming criteria for all data according to the waterworks classification. In addition, a logical model is drawn and described using UML (Unified Modeling Language) diagrams. Based on the results, it is expected that the accuracy related to underground facilities data will be improved.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
• /
• 2010.06a
• /
• pp.255-257
• /
• 2010

본 논문은 우리나라가 선도하는 도시모델이며, 첨단도시 기술인 U-City(유비쿼터스 도시)의 서비스 모델 중 하나인 지하시설물 관리를 위한 기술 개발에 있어 필요한 지중 통신 기술에 대한 비교실험에 대한 결과이다. 지하시설물은 전 도시에 걸쳐 넓게 분포되어 있어 관리의 중요성이 높은 시설물이지만 대부분 매립되어 있기 때문에 육안 검사가 불가능하며, 센서를 이용한다고 해도 일반적인 무선통신이 불가능하여 매우 제한적으로 센서를 운영할 수 밖에 없다. 그러나 IT 기술의 발달로 인하여 무선통신기술의 성능이 매우 향상되고 있어 지중에 매설된 시설물관리에 사용할 수 있는 기술이 속속 개발되고 있다. 본 연구에서는 이러한 무선통신기술의 한계를 파악하여 U-City의 지하시설물 관리에 적용할 수 있는지 여부를 판단하고자 한다.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.18 no.2
• /
• pp.111-120
• /
• 2000

Water, waste, electric and gas facilities are urban based facilities that needed in our life and are often located in underground. Therefore, underground facilities are more difficult to manage efficiently than ground facilities. It is needed to carry out survey/probe into underground facilities and to build database in order to prevent city-misfortunes being occurred because of negligent management and in order to minimize budget-waste and a traffic jam according to repetition of road excavation constructions. Also, the development of application system is required to manage efficiently underground facility. Chonju city has launched underground water supply facility computerizing project as a part of National Geographic Information System project until December 1998 and executed survey/probe into 402.89 km water supply that is 80 mm up inside central town area 39.6 $km^2$. Also, chonju city built database into 537 km water supply that is 80 mm below based on water supply card without other survey/probe works. Also, existing work process each department is changed into GIS applied work process and underground water supply facility management system is developed by its work process basis. Water supply underground facility management system that is developed is composed of sub-system like base-map management, water supply inspect, water supply management and water supply inquiry, construction work management, administration management and map management. This research presents the procedure and method of underground water supply facility survey/probe and problem being occurred during survey/probe procedure and also show the functions of each sub-systems composing underground water supply facility management system.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
• /
• v.39 no.6
• /
• pp.429-435
• /
• 2021

The integrated underground space map shows the underground facility(water supply, sewage, gas, electric power, communication, heating), underground structures (subway, underpass, underground walkway, underground parking lot, underground shopping mall, common ward), ground(drilling, coffin, geology) refers to a map constructed so that a total of 15 types of underground information can be checked at a glance on a three-dimensional basis. The purpose of this study is to develop a technology to correct the problem of curved surface processing and the unevenness of underground facility pipelines that occur in converting 2D underground facility data into 3D-based underground space integrated map(3D underground facility model). do it with. To this end, we first investigated and reviewed the domestic and foreign status of technologies that generate data on underground facilities based on three dimensions, and developed a surface correction algorithm and an unevenness correction algorithm to solve practical problems. Algorithms to verify the developed algorithm This applied correction program was developed. Based on the above process, the three-dimensional model of the underground facility could be produced identically to reality. This study is judged to have significance as a basic study to improve the utilization of the underground spatial integration map.

• 한국정보통신설비학회:학술대회논문집
• /
• 2008.08a
• /
• pp.83-86
• /
• 2008

도시의 많은 시설물을 좀더 지능화된 체계로 관리하기 위한 수단으로 RFID/USN을 이용한 솔루션이 다양하게 제안되고 있다. 최근에 상하수도, 전력, 가스, 통신 관로 등 지하시설물 관리분야도 기존의 도면 관리체계에서 센서를 이용한 실시간 운영관리시스템 형태로의 진화를 시도하고 있다. USN은 일반적으로 무선전송을 기반으로 발전시킨 기술로서 이를 지하 매설물 센서네트워크에 적용할 경우 여러 가지 제약사항이 따르게 된다. 전자기파의 물리적 특성상 지하에서는 통신이 어렵기 때문에 이를 보완할 수 있는 적용기술 및 시설물 분포에 맞는 네트워크 토폴로지 또 싱크 노드의 물리적 설치공간 확보 및 구동전력 공급 등 현장에서 부딪히는 여러 가지 네트워크 구축에 관련된 현안사항에 대하여 그 해결방법에 대하여 기술하였다.

• Spatial Information Research
• /
• v.18 no.1
• /
• pp.19-26
• /
• 2010

It is important to manage the underground facilities efficiently because they are directly related to the convenience and safety of citizens. But the fact that the different agencies take on a role of managing the underground facilities respectively makes it impossible. So Korean government has exerted great efforts to solve this problem through several projects. Korean government expects that the ubiquitous technologies such as sensor and wireless communication in the domain of the underground facilities management will be useful. It is main duty of u-City Management Center to monitor several situations about the underground facilities using ubiquitous technologies. But there is no consensus about what concrete situations it has to monitor even though u-cities under construction. Because local governments or related companies are in charge of carrying out these roles yet, there is no legal basis on which to do these tasks by the center. And it is needed to develop new technologies for u-services efficiently. Because technologies for u-service are vast, various and converged, so it necessary to develop them according to priority or in cooperation with other developers. In this paper, we classify the monitoring items for each facility which were investigated by a recent research. It is expected to make use of defining the role of the center and developing technologies with u-service.

• Journal of Korean Society for Geospatial Information Science
• /
• v.12 no.3 s.30
• /
• pp.69-78
• /
• 2004

Since 1995, One of the NGIS(National Geographic Information System) projects, the underground utilities project, has been finished in 2003. The 19 cities in korea for this project will use underground utilities management system using underground utilities database focusing on water and sewage system. However, special expert, technical and experience problem in computer environment has not been had in working department for water and sewage management and maintenance for each local government. The management and maintenance by underground utilities database by manual method is getting lowered a data qualify of underground utilities database because of the data omitting, error in writing and securing of the lasted database. Therefore, in this study, Application test for field workers using a mobile tool and environment analysis of wireless communication in Korea and application test of GPS receiver for mobile tools had been processed and made a mobile working environment. The efficient management and maintenance method for underground utilities database has been developed an off-line method for modification and update of database about general work which has a high working frequency because of the limitation of wireless communication environment. Also, the emergency working has been applied for on-line method.

• Journal of Cadastre & Land InformatiX
• /
• v.51 no.2
• /
• pp.35-49
• /
• 2021

In order to manage the underground spatial information in systematic and effective way, production of an integration underground spatial information map is essential process. The government has been making efforts to expand manage the production of 3D underground spatial integrated map. In recent the GPR is actively used for exploring underground facilities in non-exploring area and sinkhole. For achieving the research objectives presenting the accuracy of verification standard in underground spatial information surveying using GPR, the related legislation standard, the experiment resutls and international criteria have been analyzed. From this research it is found that the accuracy standard has been made by the related academic society(USA) and association(UK) in foreign counties. It is recommended that indicate the verification standard with number and percent together considering the characteristics of GPR.