• Journal of the Korea Institute of Information and Communication Engineering
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• v.14 no.12
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• pp.2663-2669
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• 2010

During the past 5 years, domestic VoIP service has grown rapidly absorbing more than 8 million subscribers. More recently, the increase of enterprise or institutional subscribers become more dominant than individual subscribers. Supporting emergency services such as 119 in these scaled up VoIP services is very essential. In current domestic VoIP networks, the VoIP terminal's location information which are provided to the PSAP with the arriving emergency call depends on the information which are entered at the subscription time or updated by the subscribers when the terminal is moved to other place. This manual provision of location information which requires the user's intervention can result in serious failure in saving people in emergency situations, in case that users are negligent in entering the information or users enter the wrong information. In this paper, we propose an enhanced mechanism in which the terminal's location information is automatically offered by the network for emergency services in ethernet-based enterprise VoIP networks.

• Proceedings of the Korean Society of Disaster Information Conference
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• 2022.10a
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• pp.55-56
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• 2022

긴급재난문자는 재난상황을 전달할 때 가장 선호도가 높은 매체이다. 그러나 전송 채널의 용량이 비교적 작아 텍스트만 보낼 수 있고, 리턴 채널이 없어서 수신자의 응답을 받을 수 없다는 한계가 있다. 이 문제를 해결하기 위해서 다대일 통신 기법 연구가 있었으나 이를 위해서는 5G 표준 개정이 필요하다는 문제가 있다. 본 논문에서는 5G 재난문자환경에서 활용하기 위한 긴급재난문자 답신서비스를 설계하였다. 표준 개정 없이 서비스를 제공하기 위하여 재난문자에 링크를 추가하고 답신서비스 웹페이지에 접근하여 수신자의 상태 또는 재난현장의 상태를 텍스트와 사진으로 신고할 수 있도록 하였다.

• Journal of the Society of Disaster Information
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• v.9 no.1
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• pp.105-112
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• 2013

Socially, citizens' safety needs get higher, therefore support system of emergency vehicles is desperate as it is one of national services. For emergency vehicles, rapid departure and prompt field arrival are necessary. However, delay of departure occurs frequently due to traffic jam within a city so it makes citizens suffer from inappropriate service. Thus this study researched overseas examples in order to adduce solution of obstacles we have when passing through bridges and tunnel. In order to help emergency vehicles to move smoothly, a proposal of design and method for rapid support system was made.

• 한국ITS학회:학술대회논문집
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• 2005.11a
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• pp.114-119
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• 2005

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2016.05a
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• pp.529-530
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• 2016

When the mountain accident occurred, the accident victims should inform anyone of information of the location and accident situation rapidly. But if you are in the radio shadow area where you cannot use GPS, 3G/4G, and wireless communication, you can't inform someone your accidents. In this paper, we suggest the emergency rescue request notification service in situation that victims can't report their accidents. This service is to send request message for rescue in radio shadow area, in mountain accident, by BLE(Bluetooth Low Energy).

• The KIPS Transactions:PartC
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• v.15C no.4
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• pp.245-252
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• 2008

An emergency service over Voice over IP (VoIP) network is an essential condition, like the existing telecommunication services. To support for the emergency services, standardization works have been performed. The National Emergency Number Association (NENA) has been developing the framework and procedures for an emergency service for Non-IP based network, rather than protocols. In contrast, the Internet Engineering Task Force (IETF) has been only focused on end-to-end IP-based emergency calls. The NENA architecture is incompatible with the IETF protocols. To solve the problem, we design and implement a SIP-based VoIP emergency system by adopting the NENA architecture and by applying IETF protocols, for both IP-based Pubic Safety Answering Point (PSAP) and PSTN-based PSAP. It is implemented and tested under UNIX environment.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.21 no.6
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• pp.57-63
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• 2021

The Cell Broadcast Service is a public service that delivers information on disaster situations to mobile phones. In Korea, where mobile phone penetration is high, disaster information delivery through Cell Broadcast Service has a higher preference than other information delivery methods. However, since it consists only of text messages, disaster information is not delivered normally to the information vulnerable class compared to the general public. To compensate for this, a disaster information delivery application using Cell Broadcast Service was proposed and research was conducted. If research like this paper continues and Cell Broadcast Service become a service that transmits various disaster-related information considering the information vulnerable at home and abroad, it will provide the effect of reducing damage to disasters through rapid and accurate response.

• 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.

• Information and Communications Magazine
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• v.32 no.8
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• pp.3-10
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• 2015

최근 전 세계적으로 국민의 안전 및 보호에 대한 관심이 높아지고 있다. 이에, 긴급상황 발생 시 보다 신속한 긴급구조가 가능하도록 위치정보 공유 및 위치정보의 정확도 향상을 위한 기술 및 서비스 개발을 위한 연구가 이루어지고 있다. 그러나 한편으로는 위치정보 제공 시 발생할 수 있는 개인 정보 유출에 대한 우려도 높아지고 있다. 본고에서는 긴급구조를 위한 주요국(미국, 유럽 등)의 법규 및 제도, LBS 관련 국내외 기술 및 표준화 동향에 대하여 살펴보도록 하겠다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.2
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• pp.293-300
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• 2007

As the development of the various IP-based services, it is expected that Internet telephony service will gradually replace the traditional PSTN-based telephony service. But there are many issues resolved to spread the Internet telephony service. One of them is to support the emergency services in the Internet telephony. In the case of USA, it has been regulated that 911 services should be supported in the Internet telephony services using VoIP on the similar performance level to PSTN 911 service. According to the regulation, basic VoIP 911 calls should be routed to the general access line of LEA without the location information or the callback number, but the enhanced VoIP 911 calls with the location information and callback number should be routed on the dedicated 911 network and destined to the local 911 distribution center such as PSAP. But, in the current VoIP-based Internet telephony network, the emergency call service has not been handled as one of the special services as well at has a worse performance in comparison to it on PSTN. Moreover, the service has a critical problem that it can not be destined to the nearest PSAP because of the insufficient information about the location information and the call back number. In this paper, we suggest the SIP-based emergency call service mechanism in order to resolve the problems above mentioned. This suggested mechanism is implemented to show its effectiveness and efficiency.