• Journal of the Korean Institute of Gas
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• v.24 no.2
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• pp.22-28
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• 2020

In this study, quantitative risk assessment was carried out for city gas high-pressure pipelines crossing through urban rivers. The risk assessment was performed based on actual city gas properties, traffic volume and population and weather data in the worst case scenario conditions. The results confirmed that the social and individual risks were located in conditionally acceptable areas. This can be judged to be safer considering that the risk mitigation effect of protecting the pipes or installing them in the protective structure at the time of the construction of the river buried pipe is not reflected in the result of the risk assessment. Also, SAFETI v8.22 was used to analyze the effects of wind speed and pasquil stability on the accident damage and dispersion distances caused by radiation. As a result of the risk assessment, the safety of the pipelines has been secured to date, but suggests ways to improve safety by preventing unexpected accidents including river bed changes through periodic inspections and monitoring.

• The Journal of Society for e-Business Studies
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• v.19 no.4
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• pp.135-150
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• 2014

As the collection and use of personal information increases, the accidents that abuse and leak personal information are continuously increasing. The nation has established new laws and strengthened related laws for the prevention of the mass leakage of personal information and the secondary damage due to the leaked personal information. The nation also established the guidelines that need to be implemented by the institutions handling personal information for the safety of the personal information. For the efficient implementation of guidelines under the limited time and resources, it is necessary to establish the priorities between guidelines. This paper compares the relative importance of the guidelines by AHP (Analytic Hierarchy Process) technique. We performed the analysis on two expert groups, the group of consultants working in information security consulting company and the group of information security staffs handling personal information directly in the company. We compared the differences between groups and recommended the relative importances of the guidelines.

• Fire Science and Engineering
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• v.25 no.2
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• pp.39-46
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• 2011

In correctional facilities with majority of occupants in custody, the safe evacuation guide without getaway accidents should be very important due to complexity in escape paths. Fire causes are various in correctional facilities, for example, arson fire is a major cause in mental treatment facilities, however, old facilities or carelessness of flammable materials consist of fire causes in jail facilities. Both types of correctional facilities are the same in terms of many casualties from the fire cases. The thesis focus on escape paths and evacuation guide plans on the basis of analysis on fire cases and structural vulnerability, and then an electronic unlocking system is concededly installed for safe evacuation of occupants in custody without getaway accidents. Especially, the effect of the electronic unlocking system is going to be analyzed on the basis of RSET (required safe egress time) in order to realize for the occupants to evacuate safely to the front yard in case of emergency. In conclusion, if electronic security allowed system with USN (Ubiquitous Sensor Networks) technology should be installed in multi-storey correctional buildings, it is proposed that the occupants in custody might be a guided safely without getaway trials.

• Journal of the Korean Society of Marine Environment & Safety
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• v.28 no.6
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• pp.1036-1043
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• 2022

This paper discusses about the development of a visual sensor that can be installed in an automatic mooring device to detect the berthing condition of a vessel. Despite controlling the ship's speed and confirming its location to prevent accidents while berthing a vessel, ship collision occurs at the pier every year, causing great economic and environmental damage. Therefore, it is important to develop a visual system that can quickly obtain the information on the speed and location of the vessel to ensure safety of the berthing vessel. In this study, a visual sensor was developed to observe a ship through an image while berthing, and to properly check the ship's status according to the surrounding environment. To obtain the adequacy of the visual sensor to be developed, the sensor characteristics were analyzed in terms of information provided from the existing sensors, that is, detection range, real-timeness, accuracy, and precision. Based on these analysis data, we developed a 3D visual module that can acquire information on objects in real time by conducting conceptual designs of LiDAR (Light Detection And Ranging) type 3D visual system, driving mechanism, and position and force controller for motion tilting system. Finally, performance evaluation of the control system and scan speed test were executed, and the effectiveness of the developed system was confirmed through experiments.

• The Korean Society of Law and Medicine
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• v.22 no.4
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• pp.59-88
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• 2021

The National Assembly of the Republic of Korea recently enacted laws to fortify sanctions about data manipulation of pharmaceutical companies. The medicine approval system is the result of legislative efforts to prevent accidents that caused damages to patients' life and health. The medicine approval system is based on the trust that the data submitted by pharmaceutical companies is not manipulated. The Supreme Court of Korea clarified that strict standard shoud be required to secure the medicine safety in Supreme Court Decision 2008Du8628 decided November 13, 2008. We agree. This paper suggest legislation to weaken the economic incentives for pharmaceutical companies to choose data manipulation by minimizing the expected profit. In addition to revoking the marketing authorization of the medicine, the 'unfair' profits the pharmaceutical company has earned must be recovered. In addition, in order to increase the possibility to discover data manipulation, it is necessary to strengthen the review capacity and to activate the whistle-blowing.

• Journal of IKEEE
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• v.18 no.3
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• pp.368-375
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• 2014

Brain computer interface(BCI) technology has been continuously developed due to the continuous development of interface technology and the promotion of brain wave research. In this paper, we propose a driving habit management system by adopting BCI to transportation. The proposed system consists of the electroencephalogram(EEG) measuring unit, the EEG analysis unit, the memory section for storing the state information of drivers, the speed controller unit and the alarming section for generating warnings. Our proposed system can reduce the drowsy driving, improve the driving habits of users and help to prevent traffic accidents.

• Convergence Security Journal
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• v.12 no.1
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• pp.27-33
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• 2012

VANET(Vehicular Ad-hoc Network) is a kind of ad hoc networks consist of intelligence vehicular ad nodes, and has become a hot emerging research project in many fields. It provide traffic safety, cooperative driving and etc. but has also some security problems that can be occurred in general ad hoc networks. Also, in VANET, vehiculars sho uld be able to authenticate each other to securely communicate with network-based infrastructure, and their location s and identifiers should not be exposed from the communication messages. This paper explains V2I authentication pr otocol using a hash function that preserves the user privacy. In addition, we analyze the security stability of the V2I authentication protocol using Casper in the formal verification technique. As a result, V2I authentication protocol us ing hash function prove a stability.

• Proceedings of the KIEE Conference
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• 2007.11b
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• pp.133-135
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• 2007

2003년 8원 북미 북동부지역 광역정전에 이어 영국과 말레시아, 이태리에서도 대규모 정전이 발생하여 지진, 태풍에 버금가는 사회적인 혼란과 경제적인 피해를 초래했다. 이러한 광역 정전사고는 학내 전력산업계에도 상당한 충격과 시사점을 제공했고, 정부와 전력거래소 주도하에 대정전의 원인과 이를 방지하기 위한 권고치에 대한 다각적인 검토와 보완이 이루어지고 있다. 이 보완사항에는 대규모 정전을 막기 위해 필수적인 대규모 발전소 및 변전소에 계통안정화장치의 설치, 통신규격의 표준화, 인격 취득자료의 정확도를 유지하기위한 전력시장운영규칙의 개정 능의 제도적인 지원뿐만 아니라 급전원에 대한 주기적인 교육을 통해 상황대처능력을 향상시키기 위한 노력 등 대정전을 예방하기위해 전력산업 전반에 걸쳐 다양한 개선과 노력이 이루어지고 있다. 이에 대한 노력과 함께 전력거래소는 후비급전소를 천안으로 이설 중에 있고, 공공기관 지방이전 시에 신규로 중앙급전소를 설치 할 예정이다. 본 논문은 위에서 언급한 광역정전을 예방하고, 전력계통을 안전하고 효율적으로 운영하기위한 중앙급전소를 설계할 때 고려해야 할 사항에 대해 논하고자 한다.

• Annual Conference of KIPS
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• 2017.04a
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• pp.1214-1216
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• 2017

사물인터넷 관련 기술들의 다양한 연구개발은 정치 경제 문화 등 사회 각 분야의 진화를 촉진시키는 기반이 되고 있으며, 이러한 현상은 장애인을 포함한 사회적 약자를 위한 각종 제도 및 기기들의 다양한 개발 및 활용을 촉진시키는 기화로도 작용하고 있다. 그러나 아직까지 장애인을 위한 사물인터넷 기반 장비의 개발은 더디게 이루어지고 있는 것이 사실이다. 특히, 청각장애인의 경우 위험을 회피할 수 있는 소리를 사전에 인지할 수 있을 경우, 다른 장애인 대비 매우 높은 확률로 위험을 회피할 수 있음에도 불구하고 아직까지 이에 대한 연구개발이 매우 부족하다. 때문에 본 논문에서는 청각장애인들이 주변의 소리를 사전에 인지/확인할 수 있도록 하여, 발생할 수 있는 위험을 미연에 방지할 수 있는 디바이스의 개발을 제안한다. 제안하는 디바이스는 특정 크기 이상의 소리를 인지할 수 있는 소리 측정센서를 통해 해당 소리를 청각장애인이 인지할 수 있도록 알림을 제공하는 디바이스이며, 아두이노를 기반으로 하고 있기 때문에 기존의 다양한 청각보조기구 대비 매우 저렴하게 개발이 가능하다. 이를 통해, 청각장애인은 소리의 미인지로 발생할 수 있는 사고의 위험을 회피할 수 있으며, 안전한 보행권 및 이동권을 확보할 수 있을 것으로 기대한다.

• The Journal of the Korea Contents Association
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• v.11 no.6
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• pp.26-32
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• 2011

Recently, in the U-health area, there are research related on monitoring brainwaves in real-time for coping with emergent situations like the fatigue driving, cerebral infarction or the heart attack of not only the patients but also the normal elderly folks by transmitting of the EEG(Electroencephalograph). This system could be applied to hospitals or sanatoriums. In this paper, it is applied for the vehicular ad-hoc network to prevent the car accident in advance by monitoring the brainwaves of a driver in real-time. In order to do this, I used mobile ad-hoc nodes supported in the Opnet simulator for the efficient EEG brainwave transmission in the VANET environment. The vehicular ad-hoc networks transmitting the brainwaves to the nearest road-side unit are designed and simulated to draw an efficient and proper vehicular ad-hoc network environment.