• The Journal of the Korea Contents Association
• /
• v.18 no.5
• /
• pp.674-682
• /
• 2018

In the time of the Fourth Industrial Revolution, we endlessly cross between the virtual and the real in our daily routine. Information saving method has changed from physical to virtual and the contents of a digital device can be a method of showing one's identity. A digital device can be seen as a virtual version of a 'wuderkammer'. With this perspective, this study focuses on the changes that has occurred in our daily interaction, the process of thinking, perceiving, and understanding in the time of 'digital wunderkammer'. In order to discuss this matter, this study looks at the two art work series - 'Universal Addressability of Dumb Things' and 'UniAddDumThs' - by a British artist, Mark Leckey and analyzes the digital environment of today, its visual expression, and the characteristic of 'digital wunderkammer' reflected in his art works. Through this study, we hope that the readers can understand the paradigm shift of today and expand the creative possibilities in this new era of digital revolution.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2011.06a
• /
• pp.71-73
• /
• 2011

다기능 선박조종시뮬레이터(Full-mission Shiphandling Simulator)는 항해사, 선장 및 도선사의 자질 향상을 위한 교육뿐만 아니라 항만개발을 위한 사전 검토와 해난사고 발생 시, 원인규명을 위한 분석에도 이용되고 있다. 한국해양수산연수원에서는 이러한 목적을 위하여 2011년 2월 28일 Russia Transas 제품의 선박조종시뮬레이터를 설치 완료 하였다. 이 FMSS는 적어도 360도의 수평시각을 가진 대형 구형화면에 여섯(6) 자유도 운동을 하는 본선 및 타선을 실시간으로 표현하는 photo-realistic high resolution computer graphic visual system과 같은 최신기술을 사용하는 가장 현대화된 최고급 해상용 시뮬레이터로 해난 사고 윈인규명을 위한 분석 연구 목적을 위하여 광범위한 출처로부터 모델시험과 자료의 신뢰할만한 공식적 기록들에 근거한 매우 정확한 수력학적 선박 모델링 소프트웨어로 이루어졌다. 여기서는 이 FMSS의 형태와 복잡성을 상세하게 소개한다.

• Proceedings of the Korea Society for Simulation Conference
• /
• 2000.11a
• /
• pp.73-77
• /
• 2000

현재 발전소의 시뮬레이터 교육은 교재 위주로 시행되고 있어서 발전소의 입체영상이나 가상사고 진행에 따른 동적 상태변화 등을 실감있게 교육할 수 있는 교육설비가 없다. 이러한 문제점을 보완하기 위해 가상현실 및 멀티미디어 기법을 적용하여, 발전소 전반 및 주 제어실 등을 3차원 모델로 개발하고 이를 입체영상으로 시각화하여 발전소의 복잡한 구조와 기능들을 설명하고, 운전 중 발생 가능한 다양한 사고에 대한 시나리오 선정 및 저작으로 운전원 교육시 시뮬레이터실이 아닌 강의실에서 사고현상 시뮬레이션을 가능하게 하는 시스템을 개발하기 위한 설계를 완료하였다. 본 논문에서는 3차원 CAD 데이터 구축, 가상현실 시스템 개발, 웹 환경의 교육시스템 개발, MMI 화면개발을 통한 시뮬레이터 연동 시스템 개발 등을 구현하기 위해 현재까지 설계된 컴퓨터 지원 교육훈련시스템에 대한 전반적인 내용을 제시 하고자 한다.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.27 no.7
• /
• pp.1004-1010
• /
• 2021

Ship-floating object accidents can lead not only to a delay in ship's operations, but also to large scale casualties. Hence, preventive measures are required to avoid them. This study analyzed the spatiotemporal aspects of such collisions based on the data on ship-floating object accidents in sea areas in the last five years, including the collisions in South Korea's territorial seas and exclusive economic zones. We also provide basic data for related research fields. To understand the distribution of the relative density of accidents involving floating objects, the sea area under analysis was visualized as a grid and a two-dimensional histogram was generated. A multinomial logistic regression model was used to analyze the effect of variables such as time of day and season on the collisions. The spatial analysis revealed that the collision density was highest for the areas extending from Geoje Island to Tongyeong, including Jinhae Bay, and that it was high near Jeongok Port in the West Sea and the northern part of Jeju Island. The temporal analysis revealed that the collisions occurred most frequently during the day (71.4%) and in autumn. Furthermore, the likelihood of collision with floating objects was much higher for professional fishing vessels, leisure vessels, and recreational fishing vessels than for cargo vessels during the day and in autumn. The results of this analysis can be used as primary data for the arrangement of Coast Guard vessels, rigid enforcement of regulations, removal of floating objects, and preparation of countermeasures involving preliminary removal of floating objects to prevent accidents by time and season.

• Journal of the Society of Disaster Information
• /
• v.20 no.2
• /
• pp.440-447
• /
• 2024

Purpose: The number of registered vehicles in Korea continues to increase. As traffic volume increases gradually due to improved quality of life, the severity of accidents is expected to increase and congestion problems are also expected. Therefore, it is necessary to analyze the accident factors of pointed traffic accidents and non-pointed traffic accidents. Method: The severity of the apical and non-pointed traffic accidents in Incheon Metropolitan City is analyzed by dividing them into apical and non-pointed traffic accidents to investigate the factors affecting the accident. XGBoost machine learning techniques were applied to analyze the severity of pointed and non-pointed traffic accidents and visualized as plot through the results. Result: It was analyzed that during non-peak hours, such as the case of the victim's vehicle type at peak times, the victim's vehicle type and construction machinery are variables that increase the severity of the accident. Conclusion: It is meaningful to derive the seriousness factors of apical and non-pointed accidents, and it is hoped that it will be used to reduce congestion costs by reducing the seriousness of accidents in the case of apical and non-pointed in the future.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2013.10a
• /
• pp.34-36
• /
• 2013

Despite the fact that navigation technology and educational programs were developed and maritime law has been enforced strictly, the number of maritime accidents has not dropped significantly. In order to reduce traffic accidents at sea, the preventive index for maritime accidents is designed and measured to evaluate and visualize the activities performed. The survey module is composed of preventive domains such as education, engineering, enforcement and information. The index was abstracted from the statistics of maritime accidents causes(2010~2012). It can be evaluated by using the newly developed survey modules. It was found that there is some correlation between the index value and the accident rate of maritime traffic. It is expected that this index will become another useful tool to help prevent maritime accidents.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2017.11a
• /
• pp.6-7
• /
• 2017

무인선박의 출현 및 운항 시기가 도래하는 시점에서, 항해사들의 경험적, 정성적 방법으로 항로를 설정하던 기존의 방식이 아니라 정량적 항로 결정 방식 필요성이 제기된다. 본 연구에서는 위험물(HNS) 적재선의 해상교통사고 리스크 기반의 침로 설정을 통해 실시간 데이터 활용에 따라 변화 추정 및 인적 오류를 최소화하여 무인선박 운항 시 활용 가능한 항로 설정 기법을 제안하였다. 항로 주변의 정적 위험(Static Hazard)을 기반한 리스크 평가 방법을 제시하고, Contour map으로 시각화 통해 무인선박뿐 아니라 현존하는 선박에도 적용 가능하여, 사용자 결정에 따라 리스크 기반으로 침로 설정 통해 선박 운항 효율성 및 안전성 확보에 기여할 것으로 기대된다. 본 연구 내용을 토대로 정적 위험뿐 만아니라 선박을 포함한 동적 위험을 반영한 실시간 리스크 기반 항로 설정까지 확장하기 위한 연구가 요구된다.

• The Journal of the Korea Contents Association
• /
• v.19 no.10
• /
• pp.560-567
• /
• 2019

South Korea, which has entered an aged society, is about to enter a super-aged society in 2025. With the increase of an aging population, traffic accidents by aged drivers have been settled as a social problem. Now, when Korea is facing a super-aged society to come, a study was conducted to prevent traffic accidents that occur while the elderly people are driving through a disaster prevention design. For theoretical research, this study examined the concept and necessity of disaster prevention design, the present condition of an aged society, aged drivers' physical and cognitive characteristics, and the policies related to the forms of traffic lights the elderly people see. In addition, to propose the design, this study investigated and analyzed the traffic safety forms and colors of the International Standards Organization and proposed the first and second forms of the design of traffic lights for the gradual improvement of the traffic lights based on that. The first improved design form is a plan for displaying a triangle, an arrow with a large area, and a quadrangle in the lens of the head of the existing traffic lights, and the second improved design form is a plan for introducing a new traffic light head and forming the traffic light with a bigger triangle, an arrow with a large area and a quadrangular lens. Since it has a visually clearer form than the present traffic lights, it is expected that aged drivers who have physical and cognitive characteristics due to aging can secure better visibility and conspicuity and that they can make better reflex responses than they can now, also in the change of driving environment (rain and heavy snowstorm, etc.). In addition, it is expected that this study would be a preceding study to prepare standard guidelines on traffic safety signs other than traffic lights to be prepared for the super-aged society.

• Journal of the Korean Society of Marine Environment & Safety
• /
• v.29 no.7
• /
• pp.836-842
• /
• 2023

Under the Welfare of Disabled Persons Act, the national qualification test allows disabled and non-disabled people to appear for the same test, and the deaf do not fall under the reason for disqualification from obtaining a license for power-driven water leisure crafts; therefore, even the deaf can obtain a license. During a risk of collision at sea, ships and power-driven water leisure crafts notify the other party of dangerous signals such as maneuvering and warning signals through sound signals to prevent accidents that may occur because surrounding ships are not visible. However, a method is required to prevent marine accidents that may occur when the deaf cannot hear danger signals through sounds from nearby ships or power-driven water leisure crafts during leisure activities owing to hearing impairment. A sound reception system is a device installed on a ship where missionary work is completely deposed to display the amplification of external sounds and the direction of sound reception on the screen. Through visual display of sound signals such as dangerous signals that cannot be heard owing to hearing impairment, improvement measures were proposed to prevent marine accidents that can occur owing to the inability of the deaf to check sound signals during leisure activities.

• Communications of Mathematical Education
• /
• v.24 no.3
• /
• pp.709-730
• /
• 2010

The inverse function of a one-to-one correspondence is explained with a graph, a numerical formula or other useful expressions. The purpose of this paper is to know how low achieving students understand the learning contents needed reversible thinking about irrational functions. Low achieving students in this study took paper-pencil test and their written answers were collected. They made various mistakes in solving problems. Their error types were grouped into several classes and identified in this analysis. Most students did not connected concepts that they learned in the lower achieving students to think in reverse order in case of and to visualize concepts of functions. This paper implies that it is very important to take into account students' accommodation and reversible thinking activity.