• 한국건축시공학회지
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• 제8권6호
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• pp.75-82
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• 2008

The purpose of this study is to present the rational decision process for new ward office building site. AHP Technique used in this study considers both quantitative and qualitative factors on the basis of decision maker's intuitive, reasonable or unreasonable judgement by giving weight through mutual comparision of publicity factors. The evaluaion factors were refer to another five ward office there were executed these kinds of new site selection before. These standards are composed of 6 middle groups and classified into 9 detailed standards. Alternative building sites are five places in this district. The final evauation standards are Accessibility, Urban Expansion Possibility. Distrct balance, Environment, Financing. Development easiness. And It became clear that the priority of evaluation is Financing > Urban expansion > Accessibility > Development easiness > District balance > Environment. In conclusion, it was determined that alternative " E " is the most adequate place for new ward office building.

• 한국정보통신학회논문지
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• 제26권8호
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• pp.1130-1135
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• 2022

서울특별시는 25개 구청에 7만5천여대의 CCTV가 설치되어 있다. 각 구청은 CCTV관제를 위한 관제센터를 구축하고 시민의 안전을 위해 24시간 CCTV영상관제를 수행하고 있다. 서울특별시는 유관기관과 MOU를 체결하여 긴급/응급 상황에 신속한 대응이 가능하도록 구청의 CCTV영상을 제공하여 시민이 안전한 스마트시티통합플랫폼을 구축하고 있다. 본 논문에서는, 서울특별시 관할구청에서 사건 발생 시, CCTV영상에 대해 인공지능 DNN 기반의 Template Matching 기술, MLP 알고리즘과 CNN 기반으로 YOLO SPP DNN모델을 사용하여 사람과 차량을 판별하여 도주경로를 예측한다. 또한, 관할구청을 이탈하여, 차량 및 사람이 도주 시, 인접 구청에 영상정보와 상황정보를 자동전파 하도록 설계한다. 인공지능을 활용한 도주경로 예측 및 추적 시스템은 스마트시티 통합플랫폼을 전국으로 확장시킬 수 있다.

• 한국환경보건학회지
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• 제41권6호
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• pp.389-396
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• 2015

Objectives: A hospital is a complex building that serves many different purposes. It has a major impact on patient's well-being as well as on the work efficiency of the hospital staff. Thermal comfort is one of the major factors in indoor comfort. The purpose of this study was to determine thermal comfort in various locations in a hospital. Methods: Various indoor environmental conditions in a general hospital were measured in February 2014. The predicted mean vote (PMV) and carbon dioxide ($CO_2$) concentration were measured simultaneously in the lobby, office, restaurant, and ward. Results: The ward was the most thermally comfortable location (PMV=0.44) and the lobby was the most uncomfortable (PMV = -1.39). However, the $CO_2$ concentration was the highest in the ward (896 ppm) and the lowest in the lobby (572 ppm). The average PMV value was the most comfortable in the ward and the lowest in the lobby. In contrast, for concentration of carbon dioxide, the highest average was in the ward and the lowest in the lobby. Due to air conditioner operation, during operating hours the PMV showed values close to 0 compared to the non-operating time. Correlation between PMV and $CO_2$ differed by location. Conclusion: The PMV and concentration of carbon dioxide of the hospital lobby, office, restaurant and ward varied. The relationship between PMV and carbon dioxide differed by location. Consideration of how to apply PMV and carbon dioxide is needed when evaluating indoor comfort.

• Environmental Engineering Research
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• 제18권2호
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• pp.85-90
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• 2013

This study is an attempt to quantify rainwater utilization and miscellaneous water demand in Tokyo's 23 special wards, the core of the urban area in Tokyo, Japan, in order to elucidate the potential of further rainwater utilization. The rainwater utilization for miscellaneous appropriate water demands, including toilet flushing, air conditioning, and garden irrigation, were calculated for six different types of building: residential house, office, department store, supermarket, restaurant, and accommodation. Miscellaneous water demands in these different types of building were expressed in terms of equivalent rainfall of 767, 1,133, 3,318, 1,887, 16,574, and 2,227 (mm/yr), respectively, compared with 1,528 mm of Tokyo's average annual precipitation. Building types, numbers and its height were considered in this study area using geographic information system data to quantify miscellaneous water demands and the amount of rainwater utilization in each ward. Area precipitation-demand ratio was used to measure rainwater utilization potential for miscellaneous water demands. Office and commercial areas, such as Chiyoda ward, showed rainwater utilization potentials of <0.3, which was relatively low compared to those wards where many residential houses are located. This is attributed to the relatively high miscellaneous water demand. In light of rainwater utilization based on building level, the introduction of rainwater storage mechanisms with a storage depth of 50 mm for six different types of buildings was considered, and calculated as rainfall of 573, 679, 819, 766, 930, and 787 (mm), respectively. Total rainwater utilization using such storage facilities in each building from 23 wards resulted in the retention of 102,760,000 $m^3$ of water for use in miscellaneous applications annually, and this volume corresponded to 26.3% of annual miscellaneous water demand.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2022년도 춘계학술대회
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• pp.225-227
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• 2022

현재 서울특별시는 25개 구청에 7만5천여대의 CCTV가 설치되어 있다. 서울특별시 구청별로, CCTV관제를 위한 관제센터를 구축하고 24시간 인공지능 지능형 영상분석을 통해 차량 종류, 번호판인식, 색상 분류 등의 정보를 빅데이터로 구축하고 있다. 서울특별시는 국토교통부, 경찰청, 소방청, 법무부, 군부대 등과 MOU를 체결하여 긴급/응급 상황에 신속한 대응이 가능하도록 하고 있다. 즉, 각 구청의 CCTV영상을 제공하여 안전하고 재난의 예방이 가능한 스마트시티를 구축하고 있다. 본 논문에서는 CCTV영상을 인공지능을 통해 사건발생 시 차량 및 인원에 대한 특징을 추출하고 이를 기반으로 도주경로를 예측하고 지속적인 추적이 가능하도록 설계한다. 해당 경로의 CCTV영상을 인공지능이 자동으로 선택하여 표출하도록 설계한다. 해당 관할 권역 이외 지역으로 사건 관련 사람이나 차량의 도주경로가 예상될 때 인접 구청에 영상정보와 추출된 정보를 제공함으로써 스마트시티 통합플랫폼을 확장할 수 있도록 설계한다. 본 논문은 스마트시티 통합플랫폼 연구발전에 기초자료로 기여할 것이다.

• 국제초고층학회논문집
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• 제5권3호
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• pp.177-186
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• 2016

Along the subduction-zone of the western Japanese islands, large earthquakes are expected occur around the middle of this century, and long-period ground motions will reach major urban areas, shaking high-rise buildings violently. Since some old high-rise buildings were designed without considering long-period ground motions, reinforcing such buildings is an important issue. An effective method to reinforce existing high-rise buildings is installing additional dampers. However, a problem with ordinary dampers is that they require reinforcement of surrounding columns and girders to support large reaction forces generated during earthquake ground motion. To solve this problem, a deformation-dependent oil damper was developed. The most attractive feature of this damper is to reduce the damping force at the moment when the frame deformation comes close to its maximum value. Due to this feature, the reinforcement of columns, girders, and foundations are no longer required. The authors applied seismic retrofitting with a deformation-dependent oil damper to an existing 54-story office building (Shinjuku Center Building) located in Shinjuku ward, Tokyo, in 2009 to suppress vibration under the long period earthquake ground motions. The seismic responses were observed in the 2011 Tohoku Earthquake, and it is clarified that the damping ratio was higher and the response lower by 20% as compared to the building without dampers.