• Proceedings of the Korean Society of Computer Information Conference
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• 2011.06a
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• pp.111-113
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• 2011

우리나라에서도 2010년 1월 25일 지식경제부의 "Smart Grid 로드맵" 확정으로 Smart Grid 사업이 진행 중이다. 그러나 정보통신 환경에서 발생하고 있는 다양한 공격에 대한 보안위협이 Smart Meter에서도 발생하고 있다. 따라서 본 논문에서는 Smart Grid에 사용되는 Smart Meter 공격을 분석하고 Smart Meter 방어 방안을 제시한다.

• Journal of the Microelectronics and Packaging Society
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• v.30 no.3
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• pp.78-82
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• 2023

A fabrication of smart windows with controllable visible light transmittance in three steps by using λ/2 retardation films based on a reactive mesogen (RM) material and polarizing films is demonstrated. The phase retardation films with a Δn·d value of λ/2 (λ: wavelength) convert the direction of a traveling light to the optical axis of the film symmetrically. In this work, the retardation characteristics according to the RM thickness were evaluated and henceλ/2 phase retardation film can be fabricated. The phase retardation film with Δn·d of 276.1 nm, which is close to λ/2 (=275 nm @550 nm), was fabricated. The light transmittance of a smart window with the structure of (polarizing film)/(glass)/(alignment layer)/(λ/2 retardation film) was measured in the transmission mode, half mode and blocking mode. The evaluation results show that the transmittance of the smart window can be controlled in three steps with 35.8%, 27.8%, and 18.2% at each mode, respectively. In addition, by fabricating a smart window with a size of 15×200 mm², the feasibility of use in various fields such as buildings and automobiles was verified.

• Korean small business review
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• v.41 no.4
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• pp.1-36
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• 2019

The purpose of this study is to identify the relationships among purposes and contents of smart factory building and continuous utilization of smart factory. Specifically, this study identifies two types of purposes of smart factory building as follows: (1) improving productivity, (2) increasing flexibility. In this study, three aspects of smart factory building contents were suggested like this: (1) automation area (facility automation vs. work automation), (2) big data system focus (radical transformation vs. incremental improvement), and (3) value chain integration area (internal value chain integration vs. external value chain integration). In addition, we looked at how firm size moderates the purposes - contents - continuous utilization of smart factory relationship. A questionnaire survey was conducted on 151 manufacturing companies. More specifically, out of 151 companies, 100 are small-and-medium-sized enterprises and 51 large-sized enterprises. All questionnaires were targeted at companies with Smart Factory level above level 2. The analysis results of this study using Smart PLS statistical programs are as follows. First, the purposes of smart factory building including increasing productivity and flexibility had positive impacts on all of the contents of smart factory building. Second, all of smart factory building contents had positive impacts on the continuous use of smart factory except big data system for incremental improvement of manufacturing process. Third, the impacts of smart factory building purposes implementation on smart factory building contents varied depending on whether the purpose is productivity improvement or flexibility. Fourth, it was founded that firm size moderated the relationships of purposes - contents - continuous utilization of smart factory in such a way that large-sized firms tend to empathize the link between flexibility and smart factory building contents for continuous use of smart factory, while small-and-medium-sized-firms emphasizing the link between productivity and smart factory building contents. Most of the previous studies have focused on presenting current smart factory deployment cases. However, it is believed that this research has made a theoretical contribution in this field in that it established and verified a research model for the smart factory building strategy. Based on the findings from a working-level perspective, corporate practitioners also need to have a different approach to smart factory building, which should be emphasized depending on whether their purpose of building smart factory is to increase productivity or flexibility. In particular, since the results of this study identify the moderating effect of firm size, it is deemed necessary for firms to implement a smart factory building strategy suitable for their firm size.

• Journal of Digital Convergence
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• v.9 no.4
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• pp.235-244
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• 2011

According to spread of Smart Work introduction to public organizations & commercial enterprises, its being more focused on how to implement Smart Work effectively. So far current Smart Work, mainly Mobile Office has emphasized the speed & efficiency of management. But future Smart Work, Smart Work 2.0 must focus on the creativity & innovation of companies & people. In order to do that, the new technology like Social networking & Cloud computing should be applied. This study suggests Smart Work 2.0 implementation methodology including critical successful factors & solutions of Smart Work implementation through referencing existing implementation methodology and case study.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.23 no.12
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• pp.1596-1601
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• 2019

A smart robot game, which is one of the new type expanding the market through coding education classes recently, has a characteristic to manipulate digital games with a smart-phone while using a robot instead of existing games. Under the same rules, the virtual world's game is connected to real world's robot through a smart-phone, and the game is played while exchanging data. This study analyzes smart robot game by dividing them into media features, digital game features, and playful features. In addition, we developed the game based on the board game genre that has the general rules while using the derived development features. As a result, by presenting the case of development of smart robot board game, we would like to propose the points to be considered in the development of smart robot game.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.11a
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• pp.1136-1139
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• 2012

본 연구에서는 EPCIS(전자상품코드 정보 서비스) 시스템의 요구사항인 추상화, 고성능, 확장성, 상호 운용성을 기반으로 EPCIS 시스템의 구조를 설계하고 구현한다. EPCIS 시스템의 추상화를 위해 기존에 존재하는 다양한 데이터 베이스 시스템과 상호 운용을 위한 공통 인터페이스를 구현하고 내부적으로 확장 질의 인터페이스, 공통 질의 언어를 가진다. 연속 질의 처리 시간을 감소 시키고 중복된 결과를 효과적으로 처리하기 위한 연속 질의 처리 모듈을 구현한다. 또한 RFID(전자 태그)의 이력 추적 질의의 고성능을 지원하기 위해 RFID 환경에 최적화된 색인 기술과 질의 처리를 위한 구성 요소(Component)를 추가하여 EPCIS 시스템의 고성능 질의 처리를 가능하게 한다. 또한 확장성을 위해 저장소(EPCIS Repository) 관리자를 구현하여 비즈니스 이벤트의 메타 데이터의 스키마를 정의하여 새로운 종류의 비즈니스 이벤트를 쉽게 등록하고 사용할 수 있도록 하였다. 또한 기업의 응용 시스템과 협력 기업간에 정보 교환을 위해서 EPC 글로벌에서 제시하는 웹 서비스를 지원하며 표준 데이터 형식인 확장성 생성 언어(XML)를 사용한다.

• The Journal of Economics, Marketing and Management
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• v.8 no.3
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• pp.23-36
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• 2020

Purpose: The purpose of this study is to identify the strategic direction of organizations and their employees to efficiently utilize smart factories and enhance business performance among Korean manufacturing companies. Research design, data, and methodology: We derived a structured research model to check the mediated effect of utilization of smart factory between the characteristics of smart factory and the innovation activities. Results: Quality characteristics of smart factory and Innovation activities were all found to have a statistically significant effect on utilization of smart factory, utilization of smart factory was found to have a statistically significant effect on the business performance. And it has been shown that the utilization of smart factory is partially mediated relative to the quality characteristics of smart factory and business performance and relative to innovation activities and business performance. Conclusions: Smart factory builders can reflect the areas that affect utilization of the smart factory in their strategies by considering the quality characteristics of the smart factory and innovation Activities. Therefore, smart factory builders can identify the quality characteristics of smart factory and reflect them in the process and analyze active utilize measures through the innovative activities of the employees of the organization, thereby influencing business performance.

• Journal of the Korea Convergence Society
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• v.5 no.2
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• pp.1-6
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• 2014

Latest Smart TV is rapidly increasing in prevalence. Smart-TV can provide reserve-service, training-service, and game service to user. Smart-TV need standard API for user requested app to run it. In this case, the cracker can run Malicious apps or user-request contents to modify it by analysis of the vulnerability of the smart-TV platform. Therefore, we modify the extension API on Smart-TV to prevent hacking. Our proposed research method can support that device is illegal in Smart-TV device can prevent unauthorized access.

• The Journal of the Korea Contents Association
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• v.17 no.8
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• pp.152-161
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• 2017

This study aims to analyze what is necessary for realization of convergence smart city service, and what is the priority order for it. First, the concept is set up through the theoretical review about convergence smart city service. Second, conduct in-depth interviews with smart-city related experts and derive the necessary elements to implement convergence smart city service. Third, derive priorities by subdividing the derived elements and utilizing the AHP method. The result of this study is expected to contribute to the development of convergence smart city service by deriving what should be considered for implementation of convergence smart city service.

• The Journal of the Korea Contents Association
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• v.15 no.3
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• pp.11-20
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• 2015

Recently, with the market of smart phones slowing down, more attention is paid to wearable devices. It was suggested that 2013 was the "year of the smart watch", due to that the majority of major consumer electronics manufacturers were undertaking work on a smart watch device. However there are still many issues on the interaction and interface design of smart watches. This study reviewed related literatures and evaluated the interaction methods, interface and content design of current smart watches. Based on that, future research directions were proposed. The research results have significant meanings for the guidance of future directions of smart watch.