• The Journal of the Korea Contents Association
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• v.21 no.12
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• pp.296-301
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• 2021

This study is a study dealing with the empirical test of standardized multimedia disaster warning broadcasting linked with the next-generation prediction and warning platform and the disaster warning additional data service of terrestrial UHD broadcasting. The next-generation prediction and warning platform used in the demonstration test complies with the CAP-based TTA standardization standard, and the UHD disaster warning additional data service complies with the AEAT standard. As a result of the experiment, when a standardized CAP disaster warning message is issued and delivered to a broadcasting company, a system was established so that it is automatically converted to AEAT, a UHD disaster warning additional data message, and transmitted. The receiver unit was configured by connecting a set-top capable of receiving disaster alert data and a TV with an HDMI cable. When a disaster is announced, the set-top displays the AEAT message on the TV broadcasting screen, customized to the priority of the disaster and the area where it is issued. In addition, incoming messages are displayed in a language suitable for user settings among 5 languages. Additional multimedia functions such as images and alarm sounds could also be linked. In particular, it was confirmed that the receiver message was displayed within 3 seconds of issuing the disaster alert, enabling prompt delivery of the disaster alert.

• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.301-302
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• 2013

본 논문에서 제안하는 시스템은 특정 지역 내에 공청방송시스템과 인터넷 망이 설치되어 있다는 가정 하에서 콘텐츠 송출 시스템과 콘텐츠 분배기 및 TV 제어기로 구성된다. 이 시스템의 목적은 재난경보방송을 위한 긴급방송 콘텐츠를 송출하여 이를 TV를 통해 건물 내에 있는 사람들이 강제적으로 시청하게 함으로써 재난정보를 알리는 것이다. 그 지역 내의 일반적인 인프라와 경제적인 측면을 고려하여 콘텐츠 송출시스템과 콘텐츠 분배기는 LAN에 연결되며 콘텐츠 분배기와 TV 제어기는 RF로 연결되도록 구성하였으며, TV 제어기는 IR로 TV를 제어한다. 제안하는 시스템은 재난경보방송 외에도 안내정보 등을 공유하려는 목적으로도 다양하게 활용될 수 있다.

• Journal of Internet Computing and Services
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• v.12 no.6
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• pp.129-137
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• 2011

In this paper, a fast and reliable emergency broadcasting system for Advanced Television System Committee (ATSC) Mobile DTV is proposed. The proposed protocol is based on the Emergency Alert Message (EAM) standard currently used for cable TV emergency broadcasting in the United States. The protocol is implemented and evaluated to enable fast emergency information propagation. ATSC Mobile DTV enables digital mobile broadcasting without affecting the existing ATSC legacy digital TV system. Since ATSC Mobile DTV devices are mobile and self-powered, they can effectively propagate emergency information. The proposed emergency broadcasting protocol can be applied in all countries adopting the ATSC standard.

• Journal of Broadcast Engineering
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• v.12 no.3
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• pp.230-241
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• 2007

This paper presents the requirements analysis for the Terrestrial DMB Automatic Emergency Alert Service (AEAS) Standard. First, the basic concepts in disaster management and the AEAS system structure are presented as a background. Next, other emergency alert systems and the related standards are analyzed. We propose taxonomy to categorize the emergency alert systems and analyze the characteristics of each system. Next, we analyze advantages of T-DMB for the delivery medium of emergency alert message and problems to resolve for the enhanced performance. Finally, we propose service requirements which will achieve general/special-purpose, non-interrupting, location-adaptive, automatic, message delivery service. The paper will contribute as a guideline to the development for emergency alert service standards for other broadcasting media.

• Journal of the Korea Convergence Society
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• v.4 no.1
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• pp.9-13
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• 2013

In this paper, broadcasting contents management system which is for sharing user-created information in restricted areas is proposed. By the proposed system, the information is compulsively sent to a television set receiving broadcasting contents via various transmit media. So, user should be contacting the information while they are watching broadcasting contents.

• Journal of Broadcast Engineering
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• v.12 no.6
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• pp.630-640
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• 2007

This paper presents the design of service model, transport channel, and service signaling for the Terrestrial DMB Automatic Emergency Alert Service (AEAS) Standard. The paper begins with the analysis of technical backgrounds related to the design topics. Next, the raper presents the design of service model for the AEAS. Since, unlike the regular T-DMB services, the AEAS is event-driven and common to all services, some problems have been identified to design a service model conforming to the T-DMB standard. So, the paper proposes a new concept, called the common service, and the AEAS is modeled using the common service. Next, in order to decide the transport channel for the alert information, the paper proposes to divide the alert information into the message which contains code/text-based essential information, and the supplemental multimedia information. Then, the paper tries to find the most efficient transport channels. Emergency Warning Service (EWS) which uses FIG 5/2 is selected for the delivery of the message. The paper proposes no constraints on delivery of supplemental information except that it shall use the MSC. Finally, it proposes the service signaling for the common service and transport channel. Due to the problems of conventional signaling using the MCI, it proposes a new signaling method. The paper will contribute as a guideline to the development for emergency alert service standards fur other broadcasting media.

• Journal of Broadcast Engineering
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• v.27 no.1
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• pp.80-90
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• 2022

Currently, the domestic early warning system is issued differently for each disaster, and is operated independently by relevant organizations from central government to local governments. Representative domestic disaster warning systems include disaster broadcasting using CBS(Cell Broadcasting Service) and DMB(Digital Multimedia Broadcasting) Automatic Emergency Alert Service, DITS(Disaster Information Transform System) transmitted and displayed on TV screens, automatic response system, automated rainfall warning system, and disaster message board. However, due to the difference in the method of issuing each emergency alert at the site of an emergency disaster, the alerts are issued at different times for each media, and the delivered content is also not integrated. If these systems are integrated, it is expected that damage to people's property and lives will be minimized by sharing and integrated management of disaster information such as voice, video, and data to comprehensively judge and make decisions about disaster situations. Therefore, in this study, we present a plan for the integration of the disaster warning system along with the analysis of the operation status of the domestic early warning system.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2018.06a
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• pp.280-281
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• 2018

2017년 UHD 본방송을 시작한 후 ESG, TIVIVA와 같은 부가서비스들이 지속적으로 도입되고 있다. 최근에 UHD 재난경보방송 도입 논의가 시작되었고, 서비스 방향을 TV에서 공공미디어로 확대하는 방안에 논의가 이어지고 있다. 재난경보방송의 대상이 TV가 아닌 다른 유형의 수신기들로 달라지면 서비스 시나리오도 달라진다. 기존의 아날로그 TV재난방송은 TV 화면에 자막으로 재난 문자가 표출되었고, DMB 재난경보방송은 내비게이션에서 알람음을 동반한 팝업창에 문자 메시지 형태로 표출되었다. UHD 재난경보방송 서비스가 공공미디어로 확장되기 위해서 역시 새로운 서비스에 관련한 다양한 연구가 요구된다. 이에 본 논문은 공공미디어를 통한 UHD 재난경보방송의 서비스 요구사항에 있어 3가지 연구 과제를 점화하고 있다. 우선 기존과 다른 재난 정보전달 서비스인 만큼 공공미디어를 통한 재난경보방송의 서비스 성격 정립이 필요하다. 그리고 공공미디어 수신 환경에 적합한 다양한 메시지 형식이 연구되어야 한다. 마지막으로 공공미디어를 통한 재난경보방송 시스템과 솔루션의 원격 관리 방안을 모색하고자 한다.

• Proceedings of the IEEK Conference
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• 2009.05a
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• pp.299-301
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• 2009

Current standard for T-DMB Automatic Emergency Alert Service(AEAS) contains controversial problems in service signaling. In this paper, we first describe two important characteristics of AEAS which hinder normal MCI service signaling: Common Service and Aperiodic Service. Next, we propose four method to overcome the problems, followed by the characteristics of each method. In this analysis, current T-DMB standard, the broadcasting system, and receivers are the major player to decide the optimum service signaling method. This analysis will be also applied to the design of transmission standard for other media such as cable, satellite, the Internet, etc.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2012.07a
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• pp.145-149
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• 2012

2005년 국내에서 본방송을 실시한 DMB는 모바일 방송이라는 새로운 방송 이용 환경을 창출하였다. 더불어 기존 TV를 통한 재난 방송의 사각지대로 거론되어 온 야외, 정전, 해상, 이동 환경에서 재난정보를 전달할 수 있어 방송 매체로 평가되면서, 다양한 기술 개발이 진행되었다. KBS는 DMB를 통한 재난경보방송 기술을 구현하여 2008년 제주도 지역 실험방송과 2009년 전국 실험방송을 거쳐 2010년 8월부터 본방송을 실시하는 등, DMB 재난경보방송 체계 마련을 위해 노력하여 왔다. 이러한 과정에서 차기 국가 모바일 재난경보 체계 마련의 필요성과 방향성에 대한 경험적 안을 제시해 본다. 본 연구는 급변하는 미디어 환경을 고려하여 모바일 재난 정보 전달체계에서 통신망의 역할을 강화하여 방송과 융합한 모델을 마련하고, 조속히 범국가적 재난정보의 표준 규격을 마련할 것을 촉구하며, 궁극적으로 뉴미디어 도입 정책에서 재난 정보전달에 관한 공공성 정책이 우선되어야 함을 제시하였다.