• Journal of the korean Society of Automotive Engineers
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• v.26 no.4
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• pp.17-22
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• 2004

위성항법시스템(GPS)을 이용하여 목적지까지의 최적경로를 보여주는 경로안내시스템은 이미 상용화 단계에 도달하였으며, 최근에는 차량에 내재된 모뎀을 통해 통신기지국과 접속하여 사고 시 즉시 응급기관에 연락이 가능하도록 하는 장치의 설치 등이 정보통신기술의 발달로 가능하게 됨으로써 자동차는 이제 단순한 탈것에서 위치이동 시 일어날 수 있는 제반 상황에도 대처할 수 있는 움직이는 비즈니스 공간으로 탈바꿈하고 있다. (중략)

• Proceedings of the Korea Multimedia Society Conference
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• 2003.05b
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• pp.663-666
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• 2003

기근의 산업현장에서는 장리관리 자가 장비의 모니터링과 제어를 위하여 항상 대기하고 있어야 하므로, 인력 낭비와 시간 손실이 많으므로 비효율적이다. 본 논문에서는 이러한 문제점을 해결하기 위하여 유무선 인터넷을 기반으로 하는 실시간 장비관리시스템을 개발한다. 이 시스템에서는 장비에 이상 발생시 고장을 자동으로 감지하여 장비관리자의 휴대폰으로 통보하고, 관리자가 유무선 인터넷을 통하여 고장 장비에 대한 응급조치를 한다. 이를 위하여 세부적으로 로컬 장비 제어시스템, 장비관리시스템, 모바일 시스템, 웹 시스템을 각각 개발한다.

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.29 no.2
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• pp.55-60
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• 2000

최근 고속도로 터널의 TGMS 구축에 따라 요구되는 일반 상황 및 응급상황시 설비 시스템간의 연동제어 방안에 대해 기술하였음.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10c
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• pp.61-63
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• 2003

본 논문에서는 PDA에서 IP Multicast방법을 이용한 멀티미디어 통신 시스템을 설계하고 구현한다. IP Multicast는 하나이상의 송신지에서 다수의 수신지로 패킷을 보내게 되는 통신방식으로 특정 그룹내에서의 통신을 가능하게 한다. 본 논문에서 구현한 PDA용 멀티미디어 통신 시스템은 음성, 문자, 필기체등으로 구성된 멀티미디어 요소를 IP Multicast를 응용한 통신 시스템이다. 구현된 PDA용 멀티미디어 통신 시스템은 네트워킹의 이동성(mobility)과 단말의 휴대성(portability)이 요구되는 유통업계의 POS시스템이나, 서비스업계의 사고보고, 주차통제, 응급서비스 및 수리, 유지보수등의 분야에서 폭넓게 사용될 수 있다.

• Journal of the Korean Institute of Intelligent Systems
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• v.20 no.2
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• pp.208-213
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• 2010

Generally, the mal factor for speech recognition is the background noise in speech recognition. The noise is the reason to reduce the speech recognition performance. Owing to the fact, the place to recognize is very important. To improve the recognition performance from the sound having noise, we implemented the noise filtered Wiener filter at the signal process step which adopted the FIR filter. In FIR filter, it deal with the filtered speech signal which is appropriate frequency range of human speech frequency range. Therefore, we make the recognition system distinguish between noise and speech sound from the incoming speech signal.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.19 no.12
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• pp.2836-2843
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• 2015

Due to metallicity of materials, a vessel has a limitation to adopt RF-based wireless communication technologies for the inner communication means. Visible Light Communication(VLC) can be a sound alternative to dissolve such a limitation. Using a visual light as a transmission medium, VLC is free from radio interferences and restriction of radio usages which are typically related to RF-based wireless communications. In addition, VLC can not only require the facility cost relatively low because of being possibly converged with existing LED illumination, but also be harmless to the human body. This paper proposes an indoor location-based emergency call service system solution for ships using the VLC technology that supports 256Kbps data rate and 5m transmission distance. This paper presents real implementation and testing results of the solution which verifies the propriety of the proposal.

• Journal of Digital Convergence
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• v.18 no.4
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• pp.229-236
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• 2020

As the number of elderly drivers increases, traffic accidents from the elderly also increase. In particular, the emergency situation of the elderly driver is not transmitted to the following vehicle during cloudy days and night highway accidents, so it is extended to the second and third accidents, leaving serious aftereffects. Therefore, there is an urgent need to establish an economic and effective inter-vehicle emergency communication system between the accident vehicle of the elderly and the following vehicles. In this paper, we have proposed a policy and method that can take advantage of the special emergency light pattern of an elderly driver in an emergency and transmit it to the following vehicles, thereby providing secondary accident prevention and emergency relief. Furthermore, by introducing an infrared emergency communication system between vehicles using red brake lights and implementing it as a prototype of RC-Car, we have checked the feasibility of the system.

• Journal of Korea Society of Industrial Information Systems
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• v.18 no.6
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• pp.61-70
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• 2013

This paper proposes a design of SARPE(Speed and Azimuth based Routing Protocol for Emergency) system which transfers an emergency message rapidly and accurately by minimizing path disconnection with a vehicle's speed and azimuth in case of accidents. The SARPE system accomplishes the path search based on an azimuth in order to minimize unnecessary messages and workload. It also selects the paths with the lowest probability that the path disconnection will happen by using the difference between the speed(maximum, minimum) of intermediate nodes and the average speed of a source node and destination node. Therefore, this paper minimizes the path resetting work happening due to path disconnection and transfers an emergency message rapidly and accurately.

• Smart Media Journal
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• v.5 no.3
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• pp.81-87
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• 2016

In line with the sharp increase of container traffic from globalization, ships have become larger with an aim of improving the maritime transport capacity in addition to the growing interest in monitoring danger areas on ships considering the quantity increase of ships, along with the tightening of international standard for ship safety by IMO(international Maritime Organization). Korea established a location based ship accident forecasting and preventing system in 2012 by Korea Coast Guard, however its poor response in ship accidents has been pointed out in the wake of the recent disaster of Sewol ferry. To resolve this problem, this study attempts to design a wearable type, instant emergency response system that has DGPS to issue an alert on danger areas and automatically send ship's location and operation information in emergency situation.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.1
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• pp.40-45
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• 2007

In this paper, aim to suggest the medical information wireless transmission system to provide the mobility of medical service by means of wireless area network which makes it possible, home or at a long range, to check and oversee the state of patients, and to can out a simulation. The proposed method converts medical information to digital data in an emergency and sends them to mobile terminals such as PDAs to make possible swift first aid. The simulation took advantage of the OFDM transmission method based on IEEE 802.1la in order to send reliable medical information in mobile wireless channel environment, and analyzed the system performance by applying convolution encoding to transmit reliable information in AWGN and 3-ray mobile multipath fading channel environment.