• Proceedings of the Korea Information Processing Society Conference
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• 2022.05a
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• pp.316-319
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• 2022

도시의 복잡화와 노후화로 인해 신규·대형 재난의 발생 빈도가 늘고 재난의 피해 규모가 커짐에 따라 신속하고 정확한 재난 상황관리가 필요하다. 재난 상황관리의 신속성과 정확성을 높이기 위해 상황관리 의사결정을 지원하기 위한 보다 체계적인 방법의 필요성이 대두되고 있으며, 이를 위해 기존 재난 상황관리 의사결정 지원 방법의 고찰이 선행되어야 한다. 이 논문에서는 재난 상황관리 의사결정 지원을 위한 기존 방법을 비교·검토하고 이를 기반으로 지능형 재난 상황관리 의사결정 지원을 위해 해결해야 할 도전과제를 제안한다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.21 no.1
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• pp.51-63
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• 2022

Convoy driving is one of the technologies of multi-vehicle cooperation driving along with platoon driving. All over the world, research on vehicle control mechanisms to maintain vehicle formation during convoy driving convoy driving has been actively conducted and in Europe's Autonet 2030 project has developed and demonstrated convoy driving services for highways. But, even the concept of convoy driving is still insufficient in Korea. Therefore, in this study, the concept of convoy driving service was established and scenarios and communication messages for service application on urban roads were developed. And its effectiveness was verified through simulation analysis. As a result of comparing and analyzing individual vehicle cooperative driving and convoy driving for the blind spot support service and dilemma zone safety support service, which are representative V2I cooperative driving services on urban roads, the number of conflicts(indicator of traffic safety) and delays and stops(indicator of traffic efficiency) are significantly improved in convoy driving compared to individual vehicle cooperative driving.

• Spatial Information Research
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• v.16 no.4
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• pp.421-439
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• 2008

The objective of this project is to construct the intelligent underground facility management system based on UFSN (Underground Facility Sensor Network). Total project duration is 6-year. And first two years' project has been finished. First two years' project focused on water supply and sewage facilities among 7 underground facilities and investigated the fundamental construction technology for the underground facilities management system. To contribute the development of systematic and scientific management of underground facilities, KRIHS implemented 3 researches for 'Underground facilities management system for an intelligent city' like followings: (1) to investigate an integration plan for current water supply and sewage management systems, (2) to derivate of water supply and sewage monitoring items for the monitoring technology development, and (3) to implement a basic research for sensor installation plans on different types of current and new underground facility systems. This research paper contains the first two years' outcome of researches from KRIHS (Korea Research Institute for Human Settlements).

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.390-390
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• 2022

도시 생활용수 수요는 생활 수준 향상, 도시화 등으로 지속적 증가 추세에 있으며, 최근 기후변화, 시설 노후화, 도시화, 그리고 수질 오염 등의 문제들에 직면해 있다. 이는 물 부족을 심화시켜 현행 상수도시스템에서 한정적인 수자원을 배분하는데 어려움을 가중시킨다. 이를 해결하기 위해 스마트워터그리드 기술이 상수도시스템에 도입이 되면서 지능형 상수도 계량기를 이용한 개별 소비자들의 물 소비량 자료를 보다 정밀하게 실시간으로 모니터링 할 수 있게 되었다. 실시간 실측을 바탕으로 한 물 소비량 자료는 미래 용수 수요 예측과 수운영 관리에 도움을 줄 수 있다. 한편 생활용수는 용도 또는 요금 부과 기준에 따라 가정용, 업무용, 영업용, 욕탕용, 그리고 공업용으로 분류할 수 있다. 미국과 호주 등에서는 용도 분류에 따른 모니터링 강화로 절수 방안을 개발하여 물 부족에 대비하고 있다. 우리나라도 비 가정용수(가정용수를 제외한 용수들)를 체계적으로 분류하기 위한 선행 연구들이 이뤄졌으나 분류체계가 표준화되지 않았는데, 이는 용도에 따른 개별 소비자들의 소비 특성 분석이 충분히 선행되지 않았기 때문이며, 아직까지 많은 지자체에서 물 소비량을 월 단위로 인력검침 하는데 의존하고 있어, 충분한 물 소비량 자료가 부족했기 때문이다. 본 연구에서는 영종도 112 블록에 구축된 스마트워터그리드 파일롯플랜트 527개 개별 소비자들로부터 2018년 1월 1일부터 2020년 1월 1일까지 1시간단위로 수집된 물 소비량 자료를 이용하여, 개별 소비자들의 일평균 첨두 소비량과 발생 시간, 관경, 요일, 계절에 따른 물 수요 특성 분석을 수행했다. 이 때 수집된 자료의 결측치 및 오측치를 보정하여 자료의 신뢰성을 높이고자 했다. 분석결과는 용도별 물 수요 특성을 보다 잘 이해할 수 있게 도와주며, 비가정용수의 용도별 분류에 기초자료로 사용될 수 있을 것이라 사료된다.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.23 no.1
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• pp.97-111
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• 2024

Developing countries and small local governments face financial constraints, limiting the adoption of their own bus information systems. However, despite poor social infrastructure and low income levels, developing countries have a high smartphone penetration rate, and the distribution and usage of online content and social media are widespread. Smartphones, equipped with GPS sensors, cameras, and other location-based information collection capabilities, can replace expensive on-site terminals. This study aims to replace expensive on-site terminals with smartphones, develop a center system based on cloud servers, and establish an extensible Open BIS (Bus Information System) service and platform that can be applied anywhere. The goal is to formulate a business model in the process.

• The Journal of the Convergence on Culture Technology
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• v.10 no.3
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• pp.809-818
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• 2024

This paper proposes an action plan for local governments to safely utilize artificial intelligence technology in various local government policies. The proposed method analyzes cases of application of artificial intelligence-related laws and policies in Gyeonggi Province, Seoul City, and New York City, and then presents matters that local governments should consider when utilizing AI technology in their policies. This paper applies the AILocalism-Korea analysis methodology, which is a modified version of the AILocalsm analysis methodology[1] presented by TheGovLab at New York University. AILocalism-Korea is an analysis methodology created to analyze the current activities of each local government in the fields of legal system, public procurement, mutual cooperation, and citizen participation, and to suggest practical alternatives in each area. In this paper, we use this analysis methodology to present 9 action plans that local governments should take based on safe and reliable use of artificial intelligence. By utilizing various AI technologies through the proposed plan in local government policies, it will be possible to realize reliable public services.

• Journal of the Korea Society for Simulation
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• v.24 no.4
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• pp.137-151
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• 2015

This study undertakes a simulation analysis for evaluating the benefits and costs of smart grid hub project. The purpose of the study is to explore extensively the alternatives for infrastructure configurations and identify the best scenarios that can satisfy all the stakeholder needs. We consider 19 parameters for configurating a smart grid hub city, and take a strategy of exhaustive search to find configurations that meet the two criteria simultaneously: each stakeholder's B/C ratio should be equally distributed and the B/C ratio of the entire city should be maximized. The results offer some meaningful implications for building a successful deployment strategy that can facilitate the diffusion of smart grid technologies.

• 한국IT서비스학회:학술대회논문집
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• 2009.05a
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• pp.81-84
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• 2009

우리나라에서는 2000년대 초반부터 u-City(유비쿼터스도시)라는 미래도시 모델을 정립하고 2008년에는 u-City에 관한 법률과 시행령을 제정 공포하여 u-City의 구축과 운영을 제도적으로 지원하고 있다. 다양한 목적과 지역적 특성에 맞게 u-City가 구축 운영되고 있지만, 표준 모델과 프레임워크가 정해져 있지 않은 상태이다. 한편, 지능형교통시스템(ITS, Intelligent Transport System)은 수년간 구축과 운영을 위한 표준모델과 프레임워크가 연구 검증되었으며, 최근 한국에서도 ITS 프레임워크와 관련하여 표준화된 모델이 제시되었다. 본 논문에서는 표준화되어진 ITS 프레임워크를 통해서 도시서비스를 구축 운영하는데 필요한 프레임워크의 구조와 기능을 파악하고, 2008년에 제안한 u-City 제공 서비스 프레임워크(UCSF)를 비교하여 UCSF의 구조와 기능을 검증한다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.12 no.7
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• pp.3220-3226
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• 2011

In order to monitor internal risk factors such as fire, terror, etc. on the subway station, the surveillance systems using CCTV and various kinds of sensors have been implemented and recently, introduction of surveillance systems using an advanced IT technology, sensor network technology is tried on several areas. Since 2007, Korean government has made an effort to develop the intelligent surveillance and monitoring system, which can monitor fire, intrusion, passenger congestion, health-state of structure, etc., by using wireless sensor network technology and intelligent video analytic technique. For that purpose, this study carried out field wireless communication environment test on Chungmuro Station of Seoul Metro on the basis of ZigBee that is considered as a representative wireless sensor network before field application of the intelligent integrated surveillance system being developed, arranged and analyzed and ZigBee based wireless communication environment test results on the platform and waiting room of Chungmuro Station on this paper. Results of wireless spectrum analysis on the platform and waiting room showed that there is no radio frequency overlapped with that of ZigBee based sensor network and no frequency interference with adjacent frequencies separated 10MHz or more. As results of wireless data transmission test using ZigBee showed that data transmission is influenced by multi-path fading effect from the number and flow rate of passengers on the platform or the waiting room rather than effects from entrance and exit of the train to/from the platform, it should be considered when implementing the intelligent integrated surveillance system on the station.

• Spatial Information Research
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• v.18 no.1
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• pp.19-26
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• 2010

It is important to manage the underground facilities efficiently because they are directly related to the convenience and safety of citizens. But the fact that the different agencies take on a role of managing the underground facilities respectively makes it impossible. So Korean government has exerted great efforts to solve this problem through several projects. Korean government expects that the ubiquitous technologies such as sensor and wireless communication in the domain of the underground facilities management will be useful. It is main duty of u-City Management Center to monitor several situations about the underground facilities using ubiquitous technologies. But there is no consensus about what concrete situations it has to monitor even though u-cities under construction. Because local governments or related companies are in charge of carrying out these roles yet, there is no legal basis on which to do these tasks by the center. And it is needed to develop new technologies for u-services efficiently. Because technologies for u-service are vast, various and converged, so it necessary to develop them according to priority or in cooperation with other developers. In this paper, we classify the monitoring items for each facility which were investigated by a recent research. It is expected to make use of defining the role of the center and developing technologies with u-service.