• Science of Emotion and Sensibility
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• v.1 no.1
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• pp.213-221
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• 1998

현대의 시스템들이 가지는 고기능화와 자동화로 인하여 인간의 운용 능력이 점점 더 중요한 능력으로 부각되고 있으며, 이는 사용자가 경험하게 되는 인지넉 복잡도를 제어하는 것을 요구한다. 본 연구에서는 사용자 인터페이스에서 사용자가 경험해야 하는 인지적 복잡도를 스키마 구조를 반영하여 정량화하는 엔트로피 모형(윤완철, 1992)을 적용하여 사용자가 겪게 될 인지적 복잡도를 예측하는 척도가 제안되었으며 실험적으로 검증되었다. 엔트로피와 시스템 크기-조작의 수와 상태의 수-가 각각 다른 세 가지 인터페이스 (엔트로피가 낮고 작은 크기의 인터페이스, 엔트로피가 높고 작은 크기의 인터페이스, 엔트로피가 높고 큰 크기의 인티페이스) 중의 하나를 사용하는 것을 피험자이 학습하고, 이에 대해 검사를 받았다. 제안된 척도인 시스템 엔트로피는 사용자 수행도를 잘 설명하였지만, 시스템의 크기는 그러하지 않았다. 본 연구는 사용자가 겪게 될 인지적 복잡도를 평가자의 주관이 개입하지 않는 방법을 통하여 평가할 수 있음을 보인 것으로 가전제품이나 스프트웨어의 디자인의 평가와 개선 등 인간의 인지적 복잡도가 사용성에 중요한 영향을 미치는 분야에서 유용하리라 여겨진다.

• The Journal of Korea Institute of Information, Electronics, and Communication Technology
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• v.12 no.3
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• pp.282-289
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• 2019

Reflective and solar LED road studs are being used as a way of securing visibility for road environments. Road markers have various advantages and disadvantages in terms of versatility, efficiency, simplicity and visibility as individual products of reflective type and solar LED. However, in addition to the above, it is possible to prevent secondary accident after accident, It has a common drawback that it is difficult to have. In this paper, we propose a road stud system incorporating a wireless control function using RF - based communication with existing solar LED road studs and a system for controlling them. The proposed system is called the smart road stud system and it can control the equipment through the central control unit and the relay unit connected to the central control room by incorporating the RF communication function in the existing solar LED road stud. In addition, since it is possible to control the lighting method, color, etc. according to the road condition, it is possible to provide the driver with the state of the road to perform the function for preventing the second accident after the accident. It also adds features that minimize the ongoing power consumption of LED and RF communications. In order to verify the validity of the proposed system, prototypes were produced and it was confirmed that it is possible to act as a university for prevention of accident after accident by linking with other traffic system besides accident prevention function by securing existing visibility.

• Journal of Korea Game Society
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• v.3 no.1
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• pp.94-101
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• 2003

본 연구의 목표는 GPS(Global Positioning System)을 이용한 3차원 네비게이션 시스템을 개발하여 원하는 목적지까지의 경로를 실시간으로 도로 전경과 동일한 3차원 영상으로 살펴봄으로써 운전자를 효과적으로 도울 수 있도록 하는 것이다. 실제 도로에서 일정 간격을 두고 촬영한 파노라마 실사 영상에 TIP 기법을 적용하여 가상환경을 구축하고 이들 사이의 부드러운 전이를 통해 사진과 같은 품질의 3차원 영상을 보여준다. 개발된 시스템은 2차원 네비게이션 모듈을 가지며 최적 경로 탐색 및 도로 상황 예측 기능을 제공한다.

• Proceedings of the Korean Information Science Society Conference
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• 2000.04b
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• pp.99-101
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• 2000

현행 주소는 지번 주소체계로서 많은 문제점이 지적되고 있다. 이에 새로운 주소 체계의 도입이 시급한 실정이다. 따라서 효율적인 도로 중심체계의 도입으로 사용자의 편의와 경제적 파급효과를 누리고자 한다. 새주소 관리 시스템은 돌 중심 주소체계에 따른 건물, 도로, 도로명판, 이력 등의 효율적 관리를 위해 구축했는데 특히 건물관리를 중점으로 본 논문에서 서술하였다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.31 no.1D
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• pp.127-132
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• 2011

Load managing method on road became necessary since overloaded vehicles occur damage on road facilities and existing systems for preventing this damage still show many problems. Accordingly, efficient managing system for preventing overloaded vehicles could be organized by using the road itself as a scale by applying genetic algorithm to analyze the load and the drive information of vehicles. First of all, accurate analysis of load using the behavior of road itself is needed for solving illegal axle manipulation problems of overloaded vehicles and for installing intelligent embedded load analyzing system. Accordingly in this study, to use the behavior of road, the transformation was measured by installing underground box type indoor model and indoor experiment was held using genetic algorithm and 10% error were checked.

• 한국도로학회지:도로
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• v.18 no.3
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• pp.30-34
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• 2016

• Journal of Korean Society of Transportation
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• v.23 no.5 s.83
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• pp.35-45
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• 2005

The speed enforcement camera has been regarded as one of the most important safety countermeasures. Drivers decelerate in front of the speed enforcement camera and gain speed up after passing the camera. So there is a strong need to develop the method how to place the camera to overcome this problem. This study applied the concept of design consistency to the installation of the camera, so speed difference along the road sections should be controlled within the predetermined boundary. Specially, this study also regarded camera as the one of the elements of the road alignments which can change the speed of drivers abruptly, and suggested the way to put this concept into the selection of the placement of the camera.

• Spatial Information Research
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• v.13 no.3 s.34
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• pp.211-220
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• 2005

To understand present road state quickly and correctly, The Ministry of Construction and Transportation pushing on with their plan that they offer digital images to user with position information in the HMS(Highway Management System). For that plan, the Korea Institute of Construction Technology developed a highway photologging vehicle which could acquire two high resolution color CCD images with fixed distance on the way to run. In this paper, especially, development of image aquisition S/W and synchronization device are described. And also their performance and trajectory accuracy are investigated together. As a result, it could be hon that the newly developed highway photologging vehicle is suitable to the road image acquisition work far the HMS.

• KIISE Transactions on Computing Practices
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• v.24 no.2
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• pp.59-66
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• 2018

In this paper, we propose a system to detect various damage automatically inflicted on road pavement by collecting and analyzing data from acceleration and camera sensors in real time. The proposed system sends the collected images, acceleration signals, and GPS coordinates to the road manager and the database in the remote server, shortly after detecting the damage to the road pavement. Our study makes three key contributions. The proposed system 1) enables road managers to maintain road conditions quickly, accurately, and conveniently; 2) allows road mangers to take care of various kinds of damage to the road pavement at the initial stage; and finally 3) even makes it possible to track the damage, which suggests that the integration of a high-level decision support function becomes affordable. We tested the sensitivity and precision of the proposed system against real-time data obtained from the vehicles driving on the highway at an average speed of 100 km/h. With ten iterations, the proposed system achieved an average sensitivity of 74% and an average precision of 84% in road pavement damage detection, which is comparable with the best competing schemes.

• Journal of Korean Society for Geospatial Information Science
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• v.6 no.2 s.12
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• pp.35-44
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• 1998

Road guide sign is one of important traffic facility, which guides a driver a direction to go. A road is being newly built and/or an existing road can be temporarily closed very often at metropolitan area. Such information has to be linked to a road guide sign and to be updated in time. Otherwise, it might cause not only confusion to a driver but also traffic accident and/or traffic congestion. However, road guide signs are not properly managed at this time since the amounts of information are huge and they are being managed through paper maps manually. A decision-making framework has been developed to manage a variety of information of road guide signs based on the concept of GIS(Geographic Information Systems). Especially, it is designed on the fact that the existing national digital base maps under the NGIS(National Geographic Information Systems) program can be utilized. This framework has several functions such as the manipulation of statistics, landmark linkages along the selected traffic corridor and automatic design of signboard's content. This system is applied to the Kangnam district in Seoul Metropolitan area (SMA) for a case study.