• Smart Media Journal
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• v.9 no.4
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• pp.109-117
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• 2020

Recently, with the advent of the 4th industrial revolution, digital twins are emerging as an important technology that connects and integrates physical systems and cyber systems. In this article, we analyzed the major requirements of digital twins required for the construction of digital twins of power equipments in the energy field, focusing on the industry 4.0-based Asset Administration Shell(AAS). However, since not so many studies have been conducted yet on a common platform or demonstration model for implementing digital twins both domestically and internationally, digital twin requirements are analyzed with the consideration of digital twinning of power equipment in the energy field. Also, we suggested necessary procedures and specific functions of AAS to establish a smart energy digital twin in the future by analyzing the core requirements necessary for the construction and designing the AAS design for specific power equipment.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.5
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• pp.923-928
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• 2009

The advance of scientific technology is enhanced the effect of reaction. The trend of customer for high function product is enlarged. Thus, the composition of each industry, technology and product is actually happened. Therefore, the fusion of different fields in industrial design is widely accomplished. The example of this fusion effect is that 'ubiquitous or wearable computer' which is combined the function of cloth and computing, which is including any type, any purpose, any telecommunication and any multimedia of cloth inside. The ubiquitous or wearable computer will be a final thing of post pc or next step to pc and internet. This paper is studied for the research of smartware by assistance energy. In this paper, the development of multipurpose smartware(wearable computer) powered by solar energy is introduced.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.699-701
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• 2011

The Next-generation IT technology has been evolving from single technique to another which has merged, converging characteristics. The government categorized the 5 essential technologies to secure competitiveness in designing system semiconductors as smart motor vehicle info-tainment platform, smart TV multimedia system, smart phone analog interface technique, smart convergence digital communication and RF techniques, and advanced power management for smart devices. Also, it designated smart phone, smart TV, smart motor vehicle, and smart pad as the key industries. Such core techniques will become the key technologies of semiconductor design to secure the competitiveness of the next generation smart devices and the techniques can be transferred to fab-less design companies. In this contribution, we analyze the issues and the problems of the SoC design trends for smart motor vehicle info-tainment platforms.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2011.05a
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• pp.668-670
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• 2011

The Next-generation IT technology has been evolving from single technique to another which has merged, converging characteristics. The government categorized the 5 essential technologies to secure competitiveness in designing system semiconductors as smart motor vehicle info-tainment platform, smart TV multimedia system, smart phone analog interface technique, smart convergence digital communication and RF techniques, and advanced power management for smart devices. Also, it designated smart phone, smart TV, smart motor vehicle, and smart pad as the key industries. Such core techniques will become the key technologies of semiconductor design to secure the competitiveness of the next generation smart devices and the techniques can be transferred to fab-less design companies. In this contribution, we analyze the issues and the problems of the smart phone analog and interface techniques.

• Journal of Korea Multimedia Society
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• v.14 no.11
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• pp.1478-1490
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• 2011

Recently, multi-core processors have been drawing significant interest from the embedded systems research and industry communities due mainly to their potential for achieving high performance and fault-tolerance at low cost in such products as automobiles and cell phones. To process multimedia data, a scheduling algorithm is required to meet timing constraints of periodic tasks in the system. Though Pfair scheduling algorithm can meet all the timing constraints while achieving 100% utilization on multi-core based system theoretically, however, the algorithm incurs high scheduling overheads including frequent core migrations and system-wide synchronizations. To mitigate the problems, we propose a real-time scheduling algorithm for multi-core based system so that system-wide scheduling is performed only when it is absolutely necessary. Otherwise the proposed algorithm performs scheduling within each core independently. The experimental results by extensive simulations show that the proposed algorithm dramatically reduces the scheduling overheads up to as negligible one when the utilization is under 80%.

• Smart Media Journal
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• v.5 no.4
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• pp.9-17
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• 2016

Over the next 20 years it will begin the exodus from the Internet and smart phones to the Internet of Things. The heart of IoT gives new utility and value with connectivity among things around people to the human. In future, Industrial environment will be intimately connect all among machines and machines or factories and factories in all processing, and by digitizing of all goods and production life-cycle, which is a combination of virtual world and real world, the digital factory will become reality eventually. The proposed IoT or IIoT based Download OTA (Over-the-Air) provides a flexible mechanism for downloading Media objects of any type and size from a network. Moreover, proposed IoT based DLOTA provides a part of security by lightweight encryption, OTP, and CapBAC technique.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2013.05a
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• pp.132-135
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• 2013

Today's modern society can be called the era of convergence. Mobile communication industry has become a rapid transformation to the era of mobile convergence. Smart phone users increasingly rapidly and the new role and value of smart phones is increasing in all walks of life, the impact of knowledge and information society, to accelerate the more recent case of Korea, determined to become more. The convergence of these, provided the creation of new value of the smart phone. It is intended to provide the ability to control television, set-top box, multimedia devices by using a smart phone.

• Broadcasting and Media Magazine
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• v.25 no.3
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• pp.68-83
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• 2020

1990년대말, 한국은 북미 ATSC 방송표준을 사용하여, 세계최초 HD Digital TV 방송시대를 시작하였고, 이동방송을 위해서는 DMB를 이용한 모바일 방송을 상용화하여, 이는 디지털 방송미디어 산업의 발전과 함께 글로벌 기술 경쟁력을 만드는 계기가 되었다. 이후, 20여년이 지난 최근, 한국은 북미 최신 방송표준기술인 ATSC3.0을 세계 최초로 국내에 상용화하여 4K UHD 지상파 방송시대를 여는 성과를 또다시 이루었다. 하지만, 그동안 통신기술의 눈부신 발달로 고해상도 몰입형 컨텐츠의 IP 스트리밍 서비스가 대중화되었고, 이에 따른 젊은 소비자들을 중심으로 미디어 소비 성향 변화가 확산되어, 이제는 새로운 형태의 미래 융합 방송미디어 서비스를 위한 기술과 정책이 요구되고 있다. 이에, 정부는 관련 산학연 전문가들과 2027년 ATSC3.0 UHD로의 모든 전환 정책을 위해서 다양한 요구사항을 고려한, 미래형 모바일 방송을 포함한 UHD 활성화 방안을 논의하고 있다. 미래형 모바일 방송은 스마트폰뿐만 아니라, 자동차와 사이니지, 홈 TV에서도 서비스 영역이 확장되어야 하며, IP와 연동하여 인터렉티브 양방향 서비스가 가능하여야 하고, 오디오, 비디오 엔터테인먼트뿐만 아니라 인터넷 데이터와 공공, 관심 정보의 데이터 캐스팅 서비스까지 가능하여야 한다. 본 고에서는 미래형 모바일 방송을 위하여, 현재 상용 서비스가 가능한 최신의 방송과 통신기술인 ATSC3.0과 5G를 통한 방송의 서비스와 기술에 대하여 살펴보고, 이들의 미래융합 서비스의 가능성에 대하여 생각해 보는 기회를 삼고자 한다. 본 고의 구성은 서론에서는 방송미디어의 서비스 트렌드를 분석하여 모바일 방송의 복합적 요구사항을 도출해 보고, 본론에서는 현재, 한국의 지상파 UHD 방송표준 기술인 ATSC3.0의 이동방송으로서의 특성을 살펴보고, DMB 기술과 비교해 본다. 또한, 전세계적으로 관심과 실험이 시작되고 있는 5G 방송에 대해서도 그 내용과 동향을 살펴보았다. 그리고, 결론으로는 미래의 융합서비스에 대한 예측과 연구사항에 대하여 생각해 본다.

• Journal of the Korean Academic Society of Industrial Cluster
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• v.4 no.1
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• pp.51-61
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• 2010

Digital Signage is outdoor media to provide each content and message through digital displays instead that posters and signs are displayed on public facilities. Recently, digital signage have been popular to deliver variety information and advertising on the rapid development of intelligent digital imaging devices based LCD, LED. Continuously digital signage demand and market are growing because digital signage feature is able to capable of interactive communication. Digital signage is expected that digital advertising market is continue rising in spite of global economic downturn at various research institutions, and it is expected to replace traditional media advertising in a new way with the coming digital signage at convergence media side.

• Smart Media Journal
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• v.9 no.2
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• pp.99-109
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• 2020

This paper proposes a platform construction plan for the use of spectrum big data, collects and analyzes the big data in the radio wave field, establishes a linkage plan, and presents a support system scheme for linking and using the spectrum and public sector big data. It presented a plan to build a big data platform in connection with the spectrum public sector. In a situation where there is a lack of a support system for systematic analysis and utilization of big data in the field of radio waves, by establishing a platform construction plan for the use of big data by radio-related industries, the preemptive response to realize the 4th Industrial Revolution and the status and state of the domestic radio field. The company intends to contribute to enhancing the convenience of users of the big data platform in the public sector by securing the innovation growth engine of the company and contributing to the fair competition of the radio wave industry and the improvement of service quality. In addition, it intends to contribute to raising the social awareness of the value of spectrum management data utilization and establishing a collaboration system that uses spectrum big data through joint use of the platform.