• Proceedings of the Korean Society of Computer Information Conference
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• 2013.07a
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• pp.299-300
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• 2013

본 논문에서는 한정된 지역 내의 시청자들이 다양한 전달매체로 전송되는 방송콘텐츠를 기존의 TV로 시청하는 도중에 특정 시간 동안 긴급, 재난, 알림, 관심 정보 등에 관련된 콘텐츠를 수신하여 TV에 보여 주는 시스템을 제안한다. 한정된 지역에 네트워크가 가설되어 있다는 전재 하에서, 제안하는 시스템은 방송콘텐츠 저작 및 송출 시스템과 기존의 방송콘텐츠 제공자들이 제공하는 콘텐츠와 자체 제작해 전송되는 콘텐츠를 제어하여 시청 중인 TV에 전송하는 수신제어기로 구성된다. 제안하는 시스템으로 기존의 TV를 다양한 매체로 전송되는 방송콘텐츠를 시청함과 동시에 한정된 지역 내에서 자체 정보를 공유할 수 있는 장비로 활용할 수 있다.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.24 no.3
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• pp.49-53
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• 2024

Maritime safety is a critical factor in protecting lives from accidents at sea and fostering a safer marine environment. In this study, we developed a TPMS device aimed at enhancing maritime safety, providing technological solutions for detecting accidents at sea and enabling swift responses. The device utilizes a Tube Pressure Monitoring System (TPMS) to detect tube expansion and is designed to collect real-time data and communicate with surrounding devices for rapid responses. Experimental results confirm the effective detection of pressure by TPMS (Tube Pressure Monitoring System) and stable data transmission and reception with the main IoT device. Additionally, a mobile app capable of receiving emergency alert messages and accessing information for rapid responses in emergency situations was developed. The developed device and mobile app encompass technology applicable not only in the maritime safety field but also in various other application areas, with potential for expanded application in real-world scenarios in the future. These results are expected to contribute to enhancing safety in the marine environment.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.12 no.5
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• pp.283-290
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• 2012

In this paper, a system for wake-up method for T-DMB AEAS is introduced. Wake-up function is important in emergency alert service. But there was no AEAS receiver that has the method. Google C2DM is efficient method for wake-up in android platform. So this paper suggests wake-up method in android smartphone with T-DMB by C2DM. This method will be an alternative plan until native broadcasting wake-up technology.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.20 no.5
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• pp.957-962
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• 2016

Current terrestrial Digital Multimedia Broadcasting (T-DMB) is conducting the emergency alert broadcast, or can view a variety of broadcasting. However, propagation shadow area is a situation where the service is limited due to limitations of facilities investment. In addition, there is the problem of T-DMB broadcasting is for viewing only a restricted area and a mobile device because the mobile is also T-DMB viewing device impossible. In this paper, it receives a T-DMB broadcasting as a way to solve the problems of the T-DMB system, which was studied the re transmission to the mobile device. Accordingly, by receiving the broadcast may be watched in the mobile device the T-DMB reception impossible. Also provides a one-way/two-way authentication mechanism using a conditional access function, and the system was configured so that the user can watch only the registered broadcasting.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.21 no.5
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• pp.1-9
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• 2021

In Korea, various information related to COVID-19 has been provided to the public through an EAM (Emergency Alert Message) service using CBS (Cell Broadcast Service) technology to respond to COVID-19. In particular, local governments have been actively using the EAM service as a major means of responding to COVID-19. However, since excessive use of EAM service has caused the inconvenience of the people rather than the positive effects, the authority to be able to send EAMs has be limited. In this paper, with the purpose of providing primary data for establishing a plan to properly operate EAMs, we compare and analyze the number of EAMs issued and the incidence rate of COVID-19 cases during the period from 2020 to the present. In addition, the monthly EAM usage and incidence rate of COVID-19 cases are compared in detail and correlation analysis is performed for local governments that have issued many EAMs. We expect that the analysis results of this paper will be used as primary data in establishing strategies for EAM service to counteract the prolonged COVID-19.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.794-796
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• 2016

Recently terrestrial mobile multimedia broadcasting(T-DMB) service is being provided throughout the country are expanding and demand is increasing day by day. T-DMB has the advantage of being cheaper in cost than installing another mobile multimedia broadcasting. However, there are a variety data of additional and provide it difficult for localized emergency alert broadcasting services. In this paper, a method to solve this problem feature was designed to restrict incoming unidirectional / bidirectional authentication via T-DMB system. In the mobile device is received by the T-DMB broadcasting service authentication mechanism for re-transmission to the mobile device, and T-DMB receiving other registered users can view it impossible to receive the broadcast. Through the proposed system it is considered to be able to solve the problems of the existing T-DMB technology.

• Journal of the Society of Disaster Information
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• v.12 no.3
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• pp.235-241
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• 2016

Recently our country was entering a high-tech society with social and economic development. However, the individual's ability to respond to disasters is lowered by the increase in complexity society. Accurate situation assessment and disaster response by a margin of personal information that can identify when a disaster has been difficult. Until now, by leveraging Standard speaker was the emergency alert broadcast. However, it was difficult to have regular speakers reverberation, a distinct attenuation of sound by listening to the sound, etc. due to the reflection of sound. By using a directional speaker that is characteristic of the sound attenuation of sound is straight to solve this problem and obtain feedback on measures that can effectively provide the oocytes to a valid information on a disaster situation and the evacuation.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2014.06a
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• pp.234-236
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• 2014

본 논문은 기존의 T-DMB(Terrestrial Digital Multimedia Broadcasting) 재난 정보 신호를 Wi-Fi(Wireless Fidelity)를 이용하여 재전송하는 기법을 제시한다. 각종 재난이 발생하는 지역의 T-DMB 난시청 구간에 대해서 Wi-Fi 를 이용하여 재난 정보 신호를 재전송함으로써 재난 정보 신호를 받지 못하는 시청자에게 신속한 재난 정보 서비스를 가능하게 해준다. 재난이 발생한 지역에서 T-DMB 재난 정보를 수신할 수 없는 시청자에게 AP(Access Point)를 이용하여 재난 정보를 재전송하는 것이 목적이다. 이에 본 논문에서 제안하는 Wi-Fi 를 이용한 재전송 기법은 T-DMB 신호를 수신하지 못한 시청자에게 재난정보를 효율적으로 재전송함으로써 해당 지역에 더 높은 재난 정보 수신률을 제공할 뿐만 아니라 국민의 생명과 안전을 도모할 수 있다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2017.06a
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• pp.177-179
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• 2017

우리나라는 2017 년 5 월부터 ATSC 3.0 표준에 기반한 지상파 UHD 서비스를 시작한다. 지상파 방송은 긴급한 재난 시 재난정보를 신속 정확하게 전달하여 국민의 피해를 줄일 수 있는 효과적인 매체이다. 본 고는 2000 년 이후 우리나라에서 개발했던 재난경보방송 시스템을 조사 분석한다. 우선 아날로그 방송을 활용한 사례를 간단히 조사하고, 지상파 DMB 재난경보방송 개발과정을 기술적, 정책적, 법적 관점에서 조사 분석한다. 분석 결과는 지상파 UHD 를 활용한 효과적인 재난방송 구축을 위한 정책 수립에 참고자료로 활용할 수 있을 것이다.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• 2011.07a
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• pp.160-161
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• 2011

최근 IT 기술의 발전으로 TV, DMB, 이동통신망 등을 이용한 효율적인 재난문자방송 서비스가 국내외에서 관심을 받고 있다. 특히. 이동통신망은 지역단위 전송이 가능하기 때문에 지진, 해일 등의 심각한 재난이 예상되는 지역에 신속한 경보 서비스를 가능하게 해준다. 국내에서는 이미 2G 이동통신망을 이용하여 대국민 재난문자방송 서비스를 실시하였다. 그러나 국내외적으로 3G/4G 이동통신망 서비스가 본격화 되었으며, 이에 맞는 재난문자방송 서비스가 필요한 실정이다. 이에 본 논문에서는 이동통신망을 이용한 재난문자방송 서비스인 CBS의 국내외 동향과 표준안 등을 소개하며, 국내 CBS의 향후 나아갈 방향을 제시하고자 한다.