• 한국지형공간정보학회:학술대회논문집
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• 2002.03a
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• pp.3-8
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• 2002

현장에서 GPS 측량을 하였을 때 그 측량성과를 처리할 수 있는 장소로 이동을 한 후 측량결과를 확인해야 하며, 만약 측량이 잘못 되었다는 결과가 나오면 재 측량을 해야하는 상황이 발생한다. 이와 같은 경우가 생기면, 계획했던 시간과 경비의 소요가 더 많아지게 되므로 작업의 손실이 생기는 것은 당연하다. 본 연구에서는 이러한 작업의 손실을 최소화하기 위한 방법으로 GPS 측량을 한 현장에서 바로 측량성과의 가용성 여부를 결정해 줄 수 있는 소프트웨어 개발을 연구하였다.

• Spatial Information Research
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• v.11 no.1
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• pp.41-60
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• 2003

It is noted that the paper mapping system for University Building Facility has many limitations in terms of data maintenance, real-time GIS data acquisition, and economic efficiency. The aim of this research was to evaluate an operational potential of an on site real-time mobile GIS technique to resolve the problem faced in the university. The idea is based upon the recent trends in the field of 'Telecommunication and Information Technology' that uses a PDA (personal Digital Assistants), wireless network computing, mobile computing, etc. A real time mobile GIS approach has been adopted, in which a PDA is linked to a wireless internet and field workers record data on the computer at the site and analyse data on site. While there should be a considerable number and variety of factors associated with real-time mobile GIS quality, this research focuses on three criteria that are identified as fundamental to customer requirements; (1) data quarry (2) spatial analysis (3) real-time GIS database building. 'Art--empirical study for a case study facility has been conducted to confirm the validity for the system. The system has been checked experimentally, enabled the field users to quarry the data required simply and execute spatial analysis (buffer, overlay etc.,) accommodating versatile alternatives on the site. Detailed visual maps can be generated over large areas quickly and easily. The PDA interface, in particular, were ideally suited for field users to interactively displaying positional information with attribute data. This system has shown to be quite convenient to maintaining a highly reliable database since it could playa crucial role in documenting at real-time basis temporal and spatial changes occurred in the facilities. It is anticipated that this research output will greatly serve to introduce the reliable and cost-effective facility mapping system in the university by overcoming serious constraints suffered from the past non-real time mobile GIS approach.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.37 no.1C
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• pp.1-7
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• 2012

At the industrial work site, the manufacturing process is being automated to improve work efficiency. However, it is often difficult to automate the entire manufacturing process, and there are spaces in which workers there are constantly exposed to danger. To protect such workers from the danger, this paper studied a worker safety management system for the industrial work site which uses a location recognition system and which is based on the Ubiquitous-Wireless Sensor Network (U-WSN). Using wireless signals, the distance between two devices can be measured and the location of a worker can be calculated using triangularization in 3-D. But at the industrial work sites where there are a lot of steel and structures, errors occur due to signal reflection and multi-path, etc., which makes it difficult to get the accurate location. To address this problem the following was done: first, a circular polarization patch antenna appropriate to the work site was used to reduce the degree of error that may occur from the antenna emission pattern and the particular Line of Sight (LOS); second, a 3-D localization technique and a filtering algorithm were used to improve the accuracy of location determination. The developed system was tested by using it on a wharf crane to validate its accuracy and effectiveness. The proposed location recognition system is expected to contribute greatly in ensuring the safety of workers at industrial work sites.

• Korean Journal of Construction Engineering and Management
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• v.21 no.6
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• pp.16-26
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• 2020

Road Pavement Maintenance Work is generated in a variety of different field conditions, and it is difficult to calculate the construction cost because there are no detailed criteria when preparing the estimated construction cost. Unlike new pavements, Road Pavement Maintenance has to be constructed with operating vehicles, and there are many differences in productivity depending on urban areas, limited work hours, night-time, construction area, etc. To compensate for this, the standard for calculation of construction cost provides additional charges for the number of lanes, residential areas, working hours, and night work, but it applied differently depending on construction officials. In this study, construction cost estimation standards that can properly reflect the conditions of the site was investigated for major types of Road Pavement Maintenance work. The site was investigated and analyzed mainly for many construction sites with 'overlay of asphalt after cutting', 'restore surface', 'repair of pavement', and 'recovery of roadway'. The criteria for the application of construction volume separately according to working hours, public places, and land area including extra charges for basic downtown and residential area. The hours of operation were divided into three types(7 hours, 5 hours, 3 hours) excluding movement and preparation time, and each type provided a coefficient for dividing the area of the construction site into five types. The construction cost calculation method based on the construction purpose is site conditions is proposed accordingly, and it is deemed that a plan for the designer to calculate the construction cost has been prepared in consideration of the site conditions.

• Journal of the Korea Safety Management & Science
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• v.13 no.1
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• pp.11-22
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• 2011

본 논문에서는 자기효능감(Self-efficacy belief)과 산업재해의 관계에 대한 분석을 수행하였다. 먼저 연구의 예비 단계에서는 크게 세 그룹 즉, 현장의 작업자, 현장 및 안전관련 자문업체에 근무하는 안전 관리자, 그리고 산업안전에 관계되는 정부기관 종사자 등을 대상으로 집중면접(Focus group interview)을 실시하였고, 이 집중면접의 결과를 근거로 하여 연구의 본 단계에서 적용될 설문지를 개발하였다. 본 설문지는 산업안전, 산업안전교육프로그램의 평가, 산업안전교육을 향상시키기 위한 방법, 자기만족, 스트레스, 산업재해율, 그리고 인구사회학적요인관련 정보 등과 관련되는 효능감을 평가 하도록 설계되었고, 총 917명(현장작업자: 542명, 안전 관리자: 210명, 정부기관종사자: 165명)에게 설문조사를 시행하였다. 주요 결과를 정리하면 다음과 같다. 첫째, 작업자 그룹의 경우에 안전관련 효능감과 관련한 세 가지 요인(자기관리, 사회적 지원, 환경관리)은 해당 회사의 산업재해율과 부(negative)의 상관관계를 갖는 것으로 나타났다. 둘째, 안전효능감이 높은 현장 작업자는 낮은 현장작업자들과 비교하여 안전관련 수칙을 더 잘 지키고, 자기 인생에 대한 만족도가 더 높으며, 스트레스의 정도가 더 낮은 것으로 나타났다. 셋째, 안전관리자의 경우에 안전효능감은 안전교육 프로그램의 효율성과 정(positive)의 상관관계를 그리고 해당회사의 산업재해율과는 부(negative)의 상관관계를 갖는 것으로 나타났다. 넷째, 정부기관 종사자의 경우에는 경력이 길고 높은 지위에 있을수록 산업안전관리관련 안전효능감이 높은 것으로 나타났다.

• Smart Media Journal
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• v.10 no.4
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• pp.9-14
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• 2021

In the case of the existing remote collaboration, the remote support service-oriented system is not suitable for the use of the field-oriented multi-person remote collaboration system. This paper is a remote collaboration system development for various industrial sites. We develop remote support and work management that faces the various needs of industrial sites, real-time video remote support between workers, and real-time voice work sharing between workers. In addition, The goal of the development aims to increase the usability by strengthening the security function through encryption in the video and to develop a more efficient system. Finally, the development contents are the remote management and the support software development, Android app development for worker, WebRTC-based remote collaboration system construction and development, and prototype development. These products are expected to increase demand and increase sales by installing and operating at industrial sites, and can promote manpower training, understanding trending technologies, and improving capabilities.

• Journal of Internet Computing and Services
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• v.25 no.2
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• pp.101-111
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• 2024

In this paper, we propose a concpetual architecture and its implementation approach for contextualizing unstructured CCTV-video frame data into structured XML-video textual data by using the deep-learning neural network models and frameworks. Conclusively, through the conceptual architecture and the implementation approach proposed in this paper, we can eventually realize and implement the so-called sharable working and experiencing knowledge management platforms to be adopted to smart factories in various industries.

• The Safety technology
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• no.154
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• pp.15-17
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• 2010

회사의 안전을 위해서 필요한 것에는 무엇이 있을까? 최고경영자의 안전에 대한 의지, 안전관리자의 능력, 그리고 체계적인 안전시스템 등 여러가지가 있을 것이다. 하지만 그 무엇보다 중요한 것이 바로 생산현장 근로자들의 안전의식이 아닐까 싶다. 현장 근로자들은 '제품생산'이라는 핵심적인 업무를 수행하기 위해 위험요인이 가장 많은 작업현장에서 하루의 대부분을 보낸다. 따라서 이들이 안전을 얼마나 생각하고 실천하느냐에 따라 그 사업장의 안전수준이 결정된다고 할 수 있다. LG Display는 바로 이러한 점을 놓치지 않았다. 산업현장에서 끊임없이 발생하는 산업재해의 가장 큰 원인이 현장 직원들의 안전의식이라고 보고, 이들의 안전의식을 높이는데 많은 투자를 기울여왔다. 'LG Display 안전학교'는 바로 회사의 이러한 취지 아래 설립된 것이다. 자신들의 교육이 산업현장 안전의 초석이 된다는 믿음을 가지고 끊임없이 노력해나가고 있는 'LG Display 안전학교'를 찾아가봤다.

• Proceedings of the Korea Information Processing Society Conference
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• 2021.11a
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• pp.884-886
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• 2021

각종 건설 현장에서 안전모 미착용은 주된 위험 요인 중 하나이다. 현장에서 관리자가 직접 작업자들의 안전모 착용 여부를 감독할 수 있지만 관리자가 항상 관리가 가능한 장소에 있어야 하는 한계가 있다. 본 연구에서는 안전모 착용 여부를 딥러닝 기반으로 인식하여 건설 현장에서의 안전 관리를 할 수 있도록 하는 시스템을 제안한다. 이를 위해 대표적인 객체 인식 알고리즘인 YOLO를 사용하여 현장에서의 안전모 착용 여부를 인식한다. 다음으로는 인식된 결과를 바탕으로 위험 상황을 판단하는 알고리즘을 제안한다. 제안된 시스템을 활용하면 효율적으로 건설 현장의 위험 상황을 관리할 수 있을 것으로 기대된다.

• Korean Journal of Construction Engineering and Management
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• v.23 no.5
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• pp.34-42
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• 2022

Construction site layout is attracting attention as efficient use of construction site space greatly affects the duration and cost of the overall construction. Therefore, there are many studies that automate and optimize construction site layout planning. However, the usability of construction site, which consists of goal variables of the studies, has still been unknown. Therefore, the authors present the evaluation criteria for usability of construction site layout and evaluate the usability of domestic construction sites through user survey. Furthermore, the difference in usability between construction site managers and construction site workers was confirmed. As a result of the survey, domestic construction site layout had a low effectiveness and had the lowest score in the environment category. In addition, construction site workers scored lower overall than construction site managers. Through such usability evaluation results, it contributed to the construction site layout theory by assessing current construction site layout practice and suggesting an improvement direction for automating site layout planning.