• Smart Structures and Systems
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• 제17권5호
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• pp.743-751
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• 2016

An ongoing research project is devoted to the design and implementation of a satellite based asset tracking for supporting emergency management in crisis operations. Due to the emergency environment, one has to rely on a low power consumption wireless communication. Therefore, the communication hardware and software must be designed to match requirements, which can only be foreseen at the level of more or less likely scenarios. The latter aspect suggests a deep use of a simulator (instead of a real network of sensors) to cover extreme situations. The former power consumption remark suggests the use of a minimal computer (Raspberry Pi) as data collector.

• 디지털산업정보학회논문지
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• 제12권1호
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• pp.1-12
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• 2016

The current economic crisis is making new demands on manufacturing industry, in particular, in terms of the flexibility and efficiency of production processes. This requires production and administrative processes to be meshed with each other by means of IT systems to optimise the use and capacity utilisation of machines and lines but also to be able to respond rapidly to wrong developments in production and thus to minimise adverse impacts on the business. The future scenario of the "smart factory" represents the zenith of this development. The factory can be modified and expanded at will, combines all components from different manufacturers and enables them to take on context-related tasks autonomously. Integrated user interfaces will still be required at most for basic functionalities. The complex control operations will run wirelessly and ad hoc via mobile terminals such as PDAs or smartphones. The comnination of IoT, and Big Data optimisation is bringing about huge opportunities. these processes are not just limited to manufacturing, anywhere a supply chain environment exists can benefit from information provided by linked devices and access to big data to inform their decision support. Building a smart factory with smart assets at its core means reaching those desired new levels of productivity and efficiency. It means smart products that leverage advanced traceability, connectivity and intelligence. For businesses, it means being able to address the talent crunch through more autonomous. In a Smart Factory, machinery and equipment will have the ability to improve processes through self-optimization and autonomous decision-making.

• 유통과학연구
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• 제21권12호
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• pp.23-34
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• 2023

Purpose: The purpose of this study is to identify factors affecting satisfaction as well as the intention of Gen Z customers to reorder food online in the context of a crisis. Research design, data and methodology: Data for this cross-sectional study were collected via the Internet by conducting an online survey of 652 Gen Z respondents, aged 15-25, in the south of Vietnam and using a convenience sampling method. To analyse the reliability of the scales, SPSS was used to run Cronbach's alpha. Then, SmartPLS was used to assess the measurement model, including variable reliability and validity, convergent validity, and discriminant validity of the proposed model, as well as test the hypotheses with partial least squares structural equation modelling (PLS-SEM). Results: Social influence, price value, and convenience all have a positive effect on satisfaction and repurchase intention. Satisfaction not only plays a critical role in mediating the relationship between social influence, price value, convenience and repurchase intention but also has a positive impact on repurchase intention towards buying food online. Conclusions: This study was successful in identifying the factors of repurchase intention in a crisis setting among Gen Z customers by developing a theoretical research model via literature to complete a brief Theory of Planned Behaviour model. This study also took an innovative approach to earlier ones by demonstrating not just the significant effect of social influence on satisfaction and repurchase intention, but also by identifying critical variables that managers should focus on increasing and improving management.

• 한국항행학회논문지
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• 제16권4호
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• pp.717-722
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• 2012

정보통신기술을 활용한 스마트한 재난관리체계는 가장 빈번하게 발생하는 자연재난과 교통사고 범죄 같은 사회적 재난에 충분히 대비할 수 있고 피해를 줄일 수 있는 한 방안이라고 볼 수 있다. 언제 어디서 어떻게 일어날지 예상할 수 없는 재해에 대비하기 위하여 무엇보다 중요한 것은 적절한 위기의식과 재난 초기의 올바른 선택과 대응일 것이다. 본 논문은 향후 국내 재난안전 부문에서 소셜 네트워크 서비스를 효과적으로 활용할 수 있는 방안을 모색하고자 한다. 이를 위해 해외의 재난안전 분야에서의 성공적 활용 사례를 소개하고 우리나라에 적용 가능한 방안을 도출하고자 한다. 결과적으로 유비무환의 자세로 종합적이고 체계적인 재난관리체계를 도입한다면 피해의 최소화와 신속한 재해복구에 효과적으로 기여할 것이다.

• International journal of advanced smart convergence
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• 제6권1호
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• pp.82-88
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• 2017

Emergency lights and exit signs are an indispensable part of safety precautions for effective evacuation in case of emergency in public buildings. These emergency sign indicates safe escape routes and emergency doors, using an internationally recognizable sign. However visibility of those signs drops drastically in case of emergency situations like fire smoke, etc. and loss of visibility causes serious problems for safety evacuation. This paper propose a novel emergency light and exit sign built-in with Bluetooth Low Energy (BLE) Beacon to assist the emergency self-guiding evacuation using devices for crisis and emergency management to avoid panic condition inside the buildings. In this approach, the emergency light and exit sign with the BLE beacons deployed in the indoor environments and the smart devices detect their indoor positions, direction to move, and next exit sign position from beacon messages and interact with map server in the Internet / Intranet over the available LTE and/or Wi-Fi network connectivity. The map server generate an optimal emergency exit path according to the nearest emergency exit based on a novel graph generation method for less route computation for each smart device. All emergency exit path data interfaces among three system components, the emergency exit signs, map server, and smart devices, have been defined for modular implementation of our emergency evacuation system. The proposed exit sign experimental system has been deployed and evaluated in real-time building environment thoroughly and gives a good evidence that the modular design of the proposed exit sign system and a novel approach to compute emergency exit path route based on the BLE beacon message, map server, and smart devices is competitive and viable.

• 한국융합학회논문지
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• 제8권3호
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• pp.15-22
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• 2017

최첨단 과학기술 시대를 맞아 사람들은 재난재해 예경보 시스템 및 재난재해 대응 시스템들이 잘 갖추어져 있다고 믿고 있으나 세월호 사건 등에서 알 수 있듯이 현실에서는 제대로 된 재난재해 예경보 및 대응 시스템이 갖추어져 있지 않은 상황이다. 기존의 재난재해 예경보 시스템의 경우 대부분 효율성이 낮은 센서 정보를 기반으로 하고 있으며, 영상 정보는 모니터링 요원에 의해 수동적으로 감시되고 있다. 또한 인식된 재난 재해에 대해서도 어떻게 대응하고 처리할 것인지에 대한 대응 시스템과의 연계가 미흡하다. 이에 따라 본 논문에서 CCTV 영상정보를 기반으로 특정 재난재해의 발생여부 및 정도를 최대한 빠르고 정확하게 인식하고 위기대응 매뉴얼에 근거하여 이를 모든 관련부처나 담당자들에게 자동으로 통보함으로써 효과적인 위기대응이 가능한 CCTV 기반 재난재해 인식 및 실시간 위기 대응 기술을 제안한다.

• 디지털융복합연구
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• 제15권7호
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• pp.41-53
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• 2017

본 연구에서는 2011년 3월 발생한 동일본대지진 이후 스마트그리드에 대한 관심이 높아지고 있는 가운데 일본의 스마트그리드 정책 추진현황 및 문제점에 초점을 맞춰 살펴보았다. 분석 결과, 일본에서는 2011년 동일본대지진으로 인한 전력수급 문제를 계기로 신재생에너지의 고정가격매수제도가 도입되고, 나아가 신재생에너지로 생산된 전력을 거래하는 분산형 그린 전력매매 시장을 설립하는 등 에너지 위기와 환경문제를 동시 해결하는 하나의 솔루션으로서 스마트그리드 관련 프로젝트가 본격적으로 실행되었다. 그 결과 피크전력 억제 및 CO2 삭감효과, 신재생에너지원을 이용한 에너지 수급의 안정적 확보 등 가시적인 성과를 거두었다. 한편, 현행 일본의 스마트그리드 정책 운영상의 개선과제로는 전력계통 안정화 장치의 도입(송배전망의 광역적 운용이나 대형 축전지 도입 등), 스마트그리드 관련 자국기술의 국제표준, 추진 스마트 그리드의 보안성 강화 지원 등을 제시하였다.

• 디지털융복합연구
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• 제9권5호
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• pp.77-87
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• 2011

어려운 세계 경제 여건 속에서도 스마트폰 산업은 높은 성장률을 보이고 있으며 이를 둘러싼 생태계 변화가 급속히 이루어지고 있다. 이런 가운데 지속적인 글로벌 경쟁력 우위를 지키기 위해서는 스마트폰과 관련된 생태계 변화를 선제적으로 파악하고 이에 알맞은 정책을 구사해 나가야 한다. 미국, 유럽을 비롯한 세계 각 국이 새로운 스마트폰 생태계에서 경쟁력을 유지하기 위해 부단히 노력하고 있다. 한국도 실기하였음을 인정하고 과거 IT 강국 위상을 되찾기 위한 노력을 하고 있다. 본고에서는 변화하는 스마트폰 생태계 속에서 각광 받게 될 새로운 범주의 서비스나 제시하고 우리 정부에서 추진하고 있는 노력에 더하여 어떠한 노력이 더 필요한가를 제시하였다. 본고가 앞으로 한국의 스마트폰 환경 하에서의 적절한 생태계 정책을 마련하는데 도움이 되기를 기대한다.

• 농촌계획
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• 제28권1호
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• pp.17-26
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• 2022

It is necessary to prepare a stable production base in advance for a change in the global grain market, and it is required to prepare comprehensive countermeasures such as securing technical skills and cultivation technology. Therefore, Korea, which relies on imports of major grains other than rice, could be exposed to a food crisis at any time unless the self-sufficiency rate of grains is improved. In order to respond to this new food crisis, it is necessary to find ways to efficiently utilize rice fields to increase the domestic grain self-sufficiency rate. From this point of view, interest and demand for the generalization of farmland that can be used as paddy fields and returned to paddy fields are increasing, and related research is also being continuously performed. In order to select a multipurpose farmland project site, this study extracted farmland containing 10% or more purchased and stockpiled farmland through spatial analysis (buffer, dissolve, intersect, etc.), and finally presented areas subject to multipurpose farmland projects. The target site for the multipurpose farmland project was finally selected by integrating data onto a point-by-point basis so that the current status of farmland purchased and stockpiled, Farm Manager Registration Records, and the Korean Soil Information System data (drainage classes, surface soil texture, field-suitability classification, etc.) can be used in combination. There are 175 areas where the multipurpose farmland is possible. Incheon 2, Gyeongbuk 40, Gangwon 2, Chungbuk 7, Chungnam 48, Jeonbuk 34, Jeonnam 19, Gyeongbuk 15, Gyeongnam 8. Chungcheongnam-do has the most target site for the multipurpose farmland project, and Gangwon-do is the least. It is expected to contribute to new commercialization and business expansion by deriving business areas by identifying the scale of the farmland multipurpose farmland project using Farm Manger Registration Records and spatial data.

• 제어로봇시스템학회논문지
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• 제21권5호
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• pp.442-446
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• 2015

As electricity consumption is increasing rapidly these days, an urgent. need exists to minimize consumption through smart and intelligent ways in order to prevent a future energy crisis. For this purpose, development of an intelligent peak power management system should be required. As the number of appliances and consumer electrical devices increase, power consumption in unit business tends to grow. Generally, electricity consumption can be minimized using a peak power management system capable of. effectively controlling the load power by continuously monitoring the power. In this work, a peak power management system which consists of arduino microprocessor equipped with ethernet and Zigbee shield is presented. To verify the feasibility of the proposed scheme, laboratory-scale experiments are carried out.