• 통합자연과학논문집
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• 제12권4호
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• pp.105-115
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• 2019

In this paper, a prediction system is proposed to control the brightness of smart street lamps by predicting the moving path through the reduction of consumption power and information of pedestrian's past moving direction while meeting the function of existing smart street lamps. The brightness of smart street lamps is adjusted by utilizing the walk tracking vector and soft hand-off characteristics obtained through the motion sensing sensor of smart street lamps. In addition, the motion vector is used to analyze and predict the pedestrian path, and the GPU is used for high-speed computation. Pedestrians were detected using adaptive Gaussian mixing, weighted difference imaging, and motion vectors, and motions of pedestrians were analyzed using the extracted motion vectors. The preprocessing process using linear interpolation is performed to improve the performance of the proposed prediction system. Fuzzy prediction system and neural network prediction system are designed in parallel to improve efficiency and rough set is used for error correction.

• 한국조명전기설비학회:학술대회논문집
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• 한국조명전기설비학회 2006년도 춘계학술대회 논문집
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• pp.426-431
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• 2006

The case where a drain cannot flow backwards, a sewer institution can be unmanageable in this, and a mad is under water momentarily by local heavy nin by the climate phenomenon in spite of not being a lowlands belt has occurred well more than recently. By the flooded mea since it is in the state which has some human bodies at hand, when a short circuit occurs in street lighting pole which is the electric institution thing of a road, the danger of an electric shock accident becomes higher. In this paper, it was going to show improvement plan for grasping the brittle factor of street lighting pole electricity facilities through the on-site survey of street lighting pole electricity facilities, and improving this.

• 한국IT서비스학회지
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• 제2권1호
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• pp.145-156
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• 2003

This paper presents and analyzes urban planning process to be adopted to create ubiquitous space in city environment, using City of Seoul's Digital Media Street Project as a case study. The Digital Media Street will become the main pedestrian thoroughfare in the Digital Media City (DMC) in Sangam area, planned to become the world's first ubiquitous environment in full urban scale. Ubiquitous space is reinterpreted from an urban planning perspective, and a new approach to planning such a space is introduced, including strategies to couple technology, space, and human activities. Methodology, role of different actors, planning process, and institutional arrangement are examined in turn, and this yields further agenda for improvements that can be made in planning ubiquitous spaces in the future.

• 대한전자공학회논문지
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• 제21권4호
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• pp.84-89
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• 1984

In the design of digital system, designers use multi-layer LSI to connect all signal sets between circuit modules. This paper suggests how to minimize upper street congestions and lower congestions in the single-row routing, a routing method of multi-layer LSI. This paper suggests the heuristic algorithm which minimize upper street congestions and lower street congestions by suggesting interval graph and relational operator and finding out of the order of signal sets The algorithm was implemented on a VAX-11/780 computer and illustrated by means of examples.

• 한국콘텐츠학회논문지
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• 제18권4호
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• pp.154-163
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• 2018

중국 북쪽의 산서성 대동시는 오랜 역사문화와 지역적 특색을 가지고 있는 고도(古都)이다. 특히 화엄사 주변의 화엄거리는 예로부터 종교 문화와 상업 문화가 혼재하는 문화적으로 융성한 곳이었다. 본 연구에서는 이러한 화엄거리의 역사 문화적 전통을 회복하고 지역의 경제를 활성화하기 위한 공공디자인의 새로운 개념의 제안을 목적으로 한다. 특히 지역문화에 존재하는 역사문화적 스토리를 반영하여 화엄거리의 공공디자인에 적용하는 연구를 진행했다. 먼저 화엄거리의 발전과정을 소개하였고 그 역사 문화 이야기에 대해 수집과 발굴 작업을 진행하였다. 그리고 화엄거리 공공 디자인의 현황에 대해 분석을 진행하여 이 거리의 부족한 점과 사람들의 이목을 끌지 못하는 원인 등을 찾았다. 이어서 스토리텔링에서 이야기를 구성하는 서술 방법인 '기승전결', 네 부분의 플롯을 구성하여 이 지역의 역사와 문화가 담긴 스토리에 근거한 새로운 디자인을 제안하였다. 화엄거리가 가지고 있는 역사문화적인 스토리를 발굴하여 스토리텔링에 기반한 전체적인 이미지 개선에 초점을 두고, 인문학적인 색채를 더한 거리의 공공 디자인 개념을 제시하도록 한다.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2004년도 ICCAS
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• pp.1187-1190
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• 2004

This paper presents a traveler guidance system that offers 3D street information such as road types, signal light systems, street trees, buildings, etc. We consider 5x4 road system of Gangnam(in Seoul, Korea) as a test area and reflect the traveler's car-driving situation. A web server is constructed to serve traveler's driving path by switching 3D animation scenes automatically. To do batch processing of geometric data for the 3D graphical streets construction, we have extracted major street information from present GIS database and created new GIS file formats (SMF files), which contain data sessions for links, nodes, and facilities. With these files, we can render 3D navigation scenes. A number of vector calculations were performed for the geometrical consistence and texture-mapping method was used for the realistic scene generation. Finally, we have verified the effectiveness of the service by operating a test scenario. We have checked whether traveler's 2D path and 3D navigation are exactly reported after setting specific departure and destination. This system offers us well awareness of streets and takes useful role of traveler guidance.

• 한국환경과학회지
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• 제15권4호
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• pp.325-332
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• 2006

The purpose of this paper is to suggest practical suggestions to mitigate Urban Heat Island(UHI) problems in Daegu regarding urban surface temperature. Urban street trees's size and the relations between urban land use types and surface temperature are analysed using aerial photos, the numerical value map and Landsat TM image with special reference to Jung-gu. Total urban street tree's crown size is $156,217.6m^2$ and it is equal to 2.24% of study area. In addition, the size of 'city and residential area' is $6,681,870m^2$(95.7% of study area), which causes UHI and the total size of 'river' shows the lowest surface temperature area and 'road' and 'business and service area' are the highest surface temperature zones. Therefore, it is probable that the network between urban street trees and the lowest surface temperature areas mitigate UHI effects.

• 전자공학회논문지
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• 제51권10호
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• pp.235-242
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• 2014

LED 조명 제어 기술은 LED 조명의 효율적인 관리를 위해 지속적으로 연구되는 분야 중의 하나이다. 본 논문에서는 LED 가로등을 원격으로 제어하기 위해 유무선 통신 기능을 가지는 LED 가로등 원격 제어 장치를 설계하고 구현한다. 구현된 원격 제어 장치는 조도 센서를 이용한 자동 디밍이 가능하고, RS-485/422나 Wi-Fi를 이용하여 LED 가로등을 개별(또는 통합) 제어가 가능하다. 실험을 통해 개발된 원격 제어 장치의 기능이 정상적으로 동작함을 확인하였다.

• 한국건축시공학회지
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• 제22권4호
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• pp.371-378
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• 2022

려명거리 사업은 건설비용이 알려진 유일한 건축사업이지만 북한원으로 표기되어 그 규모를 짐작할 수 없다. 본 논문에서는 려명거리의 건설조립액을 기준으로, 북한 아파트 신축공사의 m²당 공사 원가를 산출하고, 이를 서울주택도시공사가 공개한 원가와 비교하여 남한과 북한의 건축공사비 비율을 산출했다. 그 결과는 160대 1이었고 이는 남북 공식 환율이 없는 상황에서 북한원으로 표기된 공사 규모 추정에 이용될 수 있으며, 향후 남북 공동으로 건축사업을 계획할 때, 상대의 화폐단위로 산출된 건축공사 원가를 이해하는 데 일조할 것으로 기대한다.

• 한국환경복원기술학회지
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• 제22권6호
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• pp.1-14
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• 2019

Carbon storage is one of the regulating ecosystem services provided by urban street trees. It is important that evaluating the economic value of ecosystem services accurately. The carbon storage of street trees was calculated by measuring the morphological parameter on the field. As the method is labor-intensive and time-consuming for the macro-scale research, remote sensing has been more widely used. The airborne Light Detection And Ranging (LiDAR) is used in obtaining the point clouds data of a densely planted area and extracting individual trees for the carbon storage estimation. However, the LiDAR has limitations such as high cost and complicated operations. In addition, trees change over time they need to be frequently. Therefore, Structure from Motion (SfM) photogrammetry with unmanned Aerial Vehicle (UAV) is a more suitable method for obtaining point clouds data. In this paper, a UAV loaded with a digital camera was employed to take oblique aerial images for generating point cloud of street trees. We extracted the diameter of breast height (DBH) from generated point cloud data to calculate the carbon storage. We compared DBH calculated from UAV data and measured data from the field in the selected area. The calculated DBH was used to estimate the carbon storage of street trees in the study area using a regression model. The results demonstrate the feasibility and effectiveness of applying UAV imagery and SfM technique to the carbon storage estimation of street trees. The technique can contribute to efficiently building inventories of the carbon storage of street trees in urban areas.