• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2022.11a
• /
• pp.96-98
• /
• 2022

MX-S2X(선박중심직접통신)은 디지털 통신 연계기술 개발 및 실증을 통한 육상·선박·시설의 유기적 연결을 제공함으로써, 향후 도래할 해상 통신 기술 인프라로서의 효과적 활용이 가능할 것으로 기대된다. 본 논문은 '초고속해상무선통신망 무설설비 다각화 및 통신연계 기술개발 '의 1차년도에 수행한 MX-S2X 시스템의 물리계층 설계에 대한 보완 및 해상통신을 위한 최적화를 통해 상세설계를 확정하고, 이를 구현/제작한 HW의 성능을 검증한다. 제작한 HW의 검증을 위해 시험환경을 구성하여 PER 성능을 측정하고 M&S 결과와 비교 분석함으로써 MX-S2X HW의 기능 및 성능을 검증하였다.

• Proceedings of the Korean Society of Disaster Information Conference
• /
• 2022.10a
• /
• pp.417-418
• /
• 2022

최근 기후변화와 집중호우, 도시배수체계의 한계로 인해 도시침수가 빈번하게 일어나고 있으며 이에 따른 인적·물적 피해가 지속적으로 발생하고 있다. 기후변화 보고서에 따르면 우리나라 강우량은 21세기 후반까지 증가할 것으로 예측되고 있어 도시 침수 피해를 사전에 예측하고 피해 규모를 감소시키기 위한 위기 대응 시스템의 개발이 필요하다. 본 논문에서는 효율적이고 정확한 도시침수 상황관리를 가능하게 하기 위해 센서 계측 기술, IoT, 빅데이터 등의 최신 기술을 적용한 도시침수 모니터링 시스템을 설계하였다. 도시침수 모니터링 시스템은 스마트 레인센서, 스마트 지표 침수계측센서, 스마트 지표하 침수계측센서 등 다양한 종류의 센서와 연동되어 있으며 시스템에서 계측 데이터를 감시, 분석, 통계할 수 있어 효율적인 재난관리 대응이 가능하다. 또한, 도시침수 모니터링 시스템은 재난상황 발생 시 사전에 침수예상지역을 분석하고 대피계획 및 시점을 제공함으로써 인명피해를 줄이고 급작스런 홍수에 대비할 수 있다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
• /
• 2023.11a
• /
• pp.149-151
• /
• 2023

MX-S2X(선박중심직접통신)은 선박을 중심으로 한 D2D 통신을 통해 육상·선박·시설의 유기적 연결을 제공함으로써, 해양 분야의 4차 산업혁명에서 해상 통신 기술 인프라로서의 핵심 역할이 가능할 것으로 기대 된다. '초고속해상무선통신망 무설설비 다각화 및 통신연계 기술개발 '의 1단계 3차년도에서는 2차년도에 제작한 MX-S2X 1차 시제품에 대한 기능을 보완하고 ISM 대역의 소출력 요구사항을 만족하기 위한 DSSS을 적용하여 2차 시제품을 구현/제작하고 실제 해상환경에서 성능을 검증한다. 본 논문에서는 MX-S2X 2차 시제품에 대한 1, 2차 실해역 시험결과 및 향후 계획에 대해 공유한다.

• Journal of KIBIM
• /
• v.13 no.4
• /
• pp.13-25
• /
• 2023

Recently, interest in the necessity and practical application of BIM (Building Information Modeling) is also increasing in the civil engineering field. However, there are difficulties in building BIM models and utilizing BIM modeling in the civil engineering field due to various reasons. To this end, it is necessary to develop management tools and research on management methods that can effectively utilize the BIM library in the civil engineering field. Libraries in the civil engineering field are complementary to each other, so library management in consideration of library management in various combinations and continuous updates is important. BIM library management was proposed through the development of a management tool that reflects these characteristics, which is expected to contribute to improving productivity in the field of civil design.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2024.01a
• /
• pp.271-272
• /
• 2024

현재 자동차 산업은 내연기관에서 전기차 시스템으로 접어들고 있다. 전 세계적으로 탄소 중립 정책이 이를 가속화하고 있으며, 자동차 제조사들은 기존 내연기관 시스템으로는 불가능했던 기술들을 개발하고 있다. 대부분의 전기차에는 PMSM이 적용되고 있는데 부피가 크고 무거우며 토크 밀도가 낮다는 단점이 있다. AFPM은 기존 PMSM의 단점을 개선한 모터로, 부피와 무게가 작으며 토크밀도가 높다는 장점이 있어 전기차의 In-Wheel Motor System과 UAM에 적용되는 모터이다. 하지만 전기차는 도로 주행만 가능하고 UAM은 비행만 할 수 있기 때문에, 미래 모빌리티인 전기자동차와 UAM이 통합된 모빌리티를 개발하고자 한다. 본 과제에 적용되는 AFPM모터는 PMSM의 단점을 보완할 수 있기 때문에 전기차-UAM 트랜스포밍 모빌리티의 모터로 적합하다. 이 모빌리티는 자동차와 UAM의 역할을 모두 수행할 수 있어 효율적인 이동을 돕고 도시의 교통 인프라 문제를 완화할 수 있다.

• The Journal of the Korea Contents Association
• /
• v.19 no.12
• /
• pp.440-451
• /
• 2019

Smart City is a future-oriented city that provides users with desired services through various devices anytime and anywhere using Information and Communication Technologies (ICTs). In order to provide the smart city service desired by the user, the user-oriented design concept should be based on above all. The design and development process must be based on the opinions and needs of everyone involved and needs to ideally reflect all user information and feedback, including users, designers and stakeholders at all levels. Participatory design approaches can be seen as an attempt to better understand and engage real users, and they are essential and important to create more appropriate and user-friendly smart-city services. This study has recognized the importance of developing a smart city service from the viewpoint of user - centered design and examined the methodology of design thinking and service design process for smart city service development. User - centered design concept model for smart city service design was designed, and serviceability case developed based on concept model was verified.

• Journal of Wetlands Research
• /
• v.21 no.4
• /
• pp.354-364
• /
• 2019

Sri Lanka is an island nation susceptible to climate-related disasters and extreme weather events. Kurunegala City is the developing capital city of the North-Western Province of Sri Lanka. Changes in rainfall patterns and a steadily increasing annual average temperature amounting to 0.69±0.37℃ were observed in the city area. Generally, urban areas are at risk due to the lack of climate change adaptation provisions incorporated in the development plans. This study was conducted to investigate the characteristics of Krunegala City, Sri Lanka and develop an appropriate climate change adaptation plan for the city. Site investigation and qualitative risk assessment were conducted to devise a plan relevant to the climate change adaptation needs of the city. Qualitative risk analyses revealed that drinking water, water resources, and health and infrastructure risks were among the major concerns in Kurunegala City. Low impact development (LID) technologies were found to be applicable to induce non-point source pollutant reduction, relieve urban heat island phenomenon, and promote sound water circulation systems. These technologies can be effective means of alleviating water shortage and reducing urban temperature. The measures and strategies presented in this study can serve as reference for developing climate change adaptation plans in areas experiencing similar adverse effects of climate change.

• Journal of Korea Water Resources Association
• /
• v.54 no.12
• /
• pp.1233-1242
• /
• 2021

In this study, a model was developed to determine whether flooding occurred using image data, which is unstructured data. CNN-based VGG16 and VGG19 were used to develop the flood classification model. In order to develop a model, images of flooded and non-flooded images were collected using web crawling method. Since the data collected using the web crawling method contains noise data, data irrelevant to this study was primarily deleted, and secondly, the image size was changed to 224×224 for model application. In addition, image augmentation was performed by changing the angle of the image for diversity of image. Finally, learning was performed using 2,500 images of flooding and 2,500 images of non-flooding. As a result of model evaluation, the average classification performance of the model was found to be 97%. In the future, if the model developed through the results of this study is mounted on the CCTV control center system, it is judged that the respons against flood damage can be done quickly.

• Journal of the Korea Academia-Industrial cooperation Society
• /
• v.14 no.10
• /
• pp.5251-5259
• /
• 2013

This study aims to make sustainable and future-oriented eco-archipelagic city through developed trend of analysis physical design method and correlation analysis between design method and development purpose for archipelagic development. First, EU cases had variety developed thema and identity such as science city, leisure and resort city, commercial city, ecology city in environmental theory aspects but, Korean cases have plenty of problems such as focused development of leisure and resort city for fund profit, imperfected native people's developed knowledge learning and understanding and figure out that they will not make to the sustainable development for islands of archipelagic. Second, as a in-depth analysis, the application of methods and developed trend were figured out by correlation analysis between physical design methods and development purpose through result(physical design methods) of case studies. As a result, contents and design methods from development purposes have to develop by multilateral aspects and also, native resident will have to require infrastructure expansion about service contents for smooth communication and sustainable information sharing.

• Cartoon and Animation Studies
• /
• s.51
• /
• pp.181-201
• /
• 2018

The cartoon industry in Korea has continued to decline due to the contraction of published comics market and decrease in the number of comic books rental stores until the 2000s when it rapidly started to experience qualitative changes and quantitative growth due to the emergence of webtoon. The market size of webtoon industry, valued at 420 billion won in 2015, is expected to grow to 880.5 billion won by 2018. Notably, most cartoonists who draw cartoon strips are using digital devices and producing scripts in data, thereby overcoming the geographical, spatial and physical limitation of contents. As a result, a favorable environment for the creation of local ecosystems is generated. While the infrastructures of human resources are steadily growing by region, cartoon industries that are supported by the government policy have shown good performance combined with factors of creative infrastructures in local areas such as webtoon experience centers, webtoon campuses and webtoon creation centers, etc. Nevertheless, it is true that cartoon infrastructures are substantially based on a capital area which leads to an imbalanced structure of cartoon industry. To see the statistics, companies of offline cartoon business in Seoul and Gyeonggi Province make up 87%, except for distribution industry. In addition, companies of online cartoon business which are situated outside of Seoul and Gyeonggi Province form merely 7.5%. Studies and research on local webtoon are inadequate. The existing studies on local webtoon usually focus on its industrial and economic values, mentioning the word "local" only sometimes. Therefore, this study looked into the current status of local webtoon of the present time for the current state of local cartoon ecosystem, middle and long-term support from the government, and an alternative in the future. Main challenges include the expansion of opportunities to enjoy cartoon cultures, the independence of cartoon infrastructure, and the settlement of regionally specialized cartoon cultures. It means that, in order to enable the cartoon ecosystem to settle down in local areas, it is vital to utilize and link basic infrastructures. Furthermore, it is necessary to consider independence and autonomy beyond the limited support by the government. Finally, webtoon should be designated as a culture, which can be a new direction of the development of local webtoon. Furthermore, desirable models should be continuously researched and studied, which are suitable for each region and connect them with regional tourism, culture and art industry. It will allow the webtoon industry to soft land in the industry. Local webtoon, which is a growth engine of regions and main contents of the fourth industrial revolution, is expected to be a momentum for the decentralization of power and reindustrialization of regions.