• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.7
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• pp.3236-3244
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• 2011

Negligent accidents are often caused by risk factors of working environment at most construction sites and construction schedules are delayed as the workers' work location and construction progress are not figured out accurately, and this leads to a lot of loss. In this paper, with the object of solving the problems at construction sites, RFID portable device, active tag and wireless RFID reader to provide the status of workers which is based on location are designed in order to send information about the location of workers and work progress in real time to a personal RFID device. Also an application system to monitor workers' approaching to prevent accidents from vehicles and danger zones and to manage the real time location of workers is designed.

• Proceedings of the IEEK Conference
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• 2002.07c
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• pp.1764-1767
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• 2002

Recent explosive increases in information 'volume have led to a rapid development or a change of information technology which stores, searches, and manages a vast amount of information. It is considered that an effective share and utilization of a large amount of digital information produced by work performances is a pivotal element which can make decisive contributions to a great success of business management. This common property of information reflects a changing social paradigm including a change of business processes. This paper is aimed at designing and embodying the construction of knowledge base in an efficient project management system using unsupervised data mining techniques in order to extract information and utilize it as knowledge about standard data (statistical data, template etc.,), size prediction and a danger precaution notice which are needed for a plan and a scheduling of a new project from data coming from already-established projects.

• Proceedings of the IEEK Conference
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• 2005.11a
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• pp.1149-1152
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• 2005

This thesis estimates relationships between area and volume of visceral adipose tissue about health risk. Visceral adipose tissue quantity showed the quantitative relationship, where degree of area was similar to the volume.Threrfore, it is more useful to use the area which is simpler,than the volume when using visceral adipose tissue quantity for estimating the degree of danger factors related with fatness.

• Proceedings of the Korea Contents Association Conference
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• 2016.05a
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• pp.237-238
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• 2016

This paper describes Web-based information sharing mechanism in our hazard map creation support system. This system aims at collecting the unique information received from residents and raising resident's consciousness to disasters by recording hazardous locations where residents feel danger in case of disasters. We have implemented a mechanism to share and integrate data of each terminal through a Web server. We expect that this information sharing effects scalability and usefulness of our system by utilizing collected local hazard information of each district.

• Proceedings of the IEEK Conference
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• 2008.06a
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• pp.773-774
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• 2008

As an Embedded system get more complicated, the importance of the software test increases. Especially it is mandatory to test the embeded software for a charge degrade of the development company which is happened due to the error, a danger element clearance to the customer, a performance enhance of the system. In this paper, we propose efficient test method which discovers the bug an embedded system using suitable test case selection and automation test.

• Proceedings of the KIEE Conference
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• 1990.07a
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• pp.480-484
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• 1990

A simple time-delay method for avoiding collisions between two articulated robot manipulators is proposed. Links of robot are approximated by polyhedra and the danger of collision between two robots is expressed by distances between the robots. An algorithm, which can fast obtain the minimum time-delay value needed for collision avoidance, using scheme of following the boundary contour of collision region in the collision map which has information about collisions between two robots, is described.

• 한국방재학회:학술대회논문집
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• 2008.02a
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• pp.353-356
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• 2008

최근 대규모 산림재해로 인한 산림환경 훼손 및 산림 농가의 피해는 물론 산림생태계에도 나쁜 영향을 미치고 있으며 이는 사회적으로 매우 민감한 환경문제로서 국민의 주요 관심사가 되고 있다. 본 연구에서는 울진군 전체를 대상으로 GIS 및 RS 기법을 이용하여 다양한 산사태 관련 인자들을 추출 하여 이를 기반으로 GIS 중첩 및 가중치 분석을 통하여 울진군의 산사태 발생 가능 위험지역의 분포도를 작성하고자 한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.01a
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• pp.221-222
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• 2015

본 논문은 노약자가 차량들로부터 위험이 되는 구역에 진입하였을 경우, virtual BLE(Bluetooth Low Energy)를 이용해 주변 차량들로부터 안전운전 메시지를 전송함으로써 차량이 안전하게 운전 할 수 있도록 유도하는 모델에 대한 설계를 제안한다.

• Proceedings of the KSR Conference
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• 2008.06a
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• pp.122-127
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• 2008

General bus stop is very simple and have some problem to protect the passengers and don't have any proper information messenger for the convenience of bus riding in spite of present initiative bus information system. However, this paper have introduced new conceptual modular-smart station avaliable to both public bus and bimodal tram. It can secure the passenger's safety from other danger attributes like running car or unexpected natural disaster and supply the passengers the variable information from display which is connected to the control center. Therefore, modular-smart station is both shelter and information messenger for passenger's safey and convenience.

• Journal of the Korean Association of Geographic Information Studies
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• v.7 no.4
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• pp.57-64
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• 2004

In order to decrease the area damaged by forest fires and to prevent the occurrence of forest fires, the forest fire danger rating system was developed to estimate forest fire risk by means of weather, topography, and forest type. Forest fires occurrence prediction needs to improve continually. Logistic regression and spatial analysis was used in developing the forest fire occurrence probability model. The forest fire danger index in accordance to the probability of forest fire occurrence was used in the classification of forest fire occurrence risk regions.