• 한국컴퓨터정보학회논문지
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• 제29권1호
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• pp.151-161
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• 2024

이 논문에서는 제조공장 사업장 현장 내 각 공정을 촬영한 영상을 인공지능(AI)으로 분석하여 위험·유해 요인을 파악할 수 있도록 작업장 위험지도(Danger Map)를 개발하고 이 Danger Map 에서 도출된 빈도·강도에 기반한 위험도와 안전도를 실제 현장상황에 맞추어 자동으로 도출하여 유사 제조 업종에 적용할 수 있는 시스템을 제시히였다. 특히, 사업장의 안전도(위험도)를 엑셀 등 수동으로 평가하던 종래의 평가방식에서 영상으로부터 취득된 유해·위험 요인별 위험성 수준을 자동으로 산정 평가하여 시스템에 의한 안전 확보와 안전도(위험도)를 계산함으로써 이에 따라 기업에서 적절한 활동 및 조치를 마련할 수 있도록 하였다. 안전도(위험도) 산출 및 평가 자동화를 위해 '하인리히의 법칙(Heinrich's law)'을 모델로 하였으며, 위험한 행동 패턴에 대해 5X4점 평가척도를 계산하였다. 이 시스템을 실증적용하기 위해 금속주물주조공장에 적용하였으며 매월 안전도(위험도) 계산에 추가되는 시간적 비용 및 노동력을 2명 절감할 수 있었다.

• 디지털산업정보학회논문지
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• 제5권4호
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• pp.109-116
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• 2009

In the paper, we designed an automatic security diagnostic evaluation System(SeDES) based on a security diagnostic evaluation model(SeDEM) for an organization's security assurance. The SeDEM evaluates a security level of an organization quantitatively by a security evaluation formula which is composed of security variables and security index as applying the statistical CAEL model for evaluate risk level of banks. The SeDES has a good expandability as changing security variables according to an organization scale, characteristics and so on. And it also has a excellent usage because it inputs only numeric data got from statistical technique to security index. We can understand more a security level correctly than the existent risk assessment system because it is possible to assess quantitatively with an security grade as well as score. analysis.

• 한국환경복원기술학회지
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• 제24권6호
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• pp.97-107
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• 2021

Abnormal climate caused by climate change causes enormous social and economic damage. And such damage and its impact may vary depending on the location and regional characteristics of the region and the social and economic conditions of local residents. Therefore, it is necessary to continuously monitor whether there are indicators that are weaker than other regions among the detailed indicators that constitute the risk, exposure and vulnerability of climate change risk. In this study, the concept of climate change risk was used for heatwave to determine regional inequality of climate change risk. In other words, it was judged that inequality in climate change risk occurred in regions with high risk but high exposure and low vulnerability compared to other regions. As a result of the analysis, it was found that 13 local governments in Korea experienced regional inequality in climate change risk. In order to resolve regional inequality in climate change risks, the current status of regional inequality in climate change should be checked based on the analysis proposed in this study, there is a need for an evaluation and monitoring system that can provide appropriate feedback on areas where inequality has occurred. This continuous evaluation and monitoring-based feedback system is expected to be of great help in resolving regional inequality in climate change risks.

• 한국항해항만학회지
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• 제36권10호
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• pp.795-801
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• 2012

본 논문에서는 요트 계류장과 같은 소형 해상 부유체의 위기수준을 모니터링하기 위한 확률 기반 위기평가기법(Probability based risk Evaluation Techniques, PET)의 이론적인 접근 방법을 기술하였다. PET는 5단계 척도의 위기 기준을 이용한 위기 판단 절차가 핵심 개념이다. 이러한 5단계 척도들은 폐형 공식을 이용한 해상 부유체 운동의 응답함수에 대한 누적확률분포에서 계산했다. 그리고 위기기준을 갖는 PET의 위기판단 절차를 제안하였다. PET의 유용성 검증을 위하여 시뮬레이션 실험을 하였는데, 실험에는 해상 부유체의 운동 측정에 사용할 ADIS16405 센서의 전기특성을 갖는 모의 신호를 이용하였다. 실험결과, PET의 위기평가 오차는 최대 5.0 수준에서 0.38 수준으로 나타났다. 이 결과로부터 제안한 PET가 모니터링 기법으로 사용 가능함을 확인하였다.

• 경영정보학연구
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• 제4권2호
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• pp.361-376
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• 2002

본 논문은 국내 은행금응기관의 신용위험관리를 보다 효율적이고 과학적으로 지원하기 위한 통합 위험관리시스템의 프레임웍을 제시한다. 즉, 담보 보증중심의 사전관리 위주의 대출관리에서 신용중심의 사후관리 위주의 대출관리로 전환되어야 함에 따라 신용평가시스템, 대출의사결정시스템, 사후관리시스템, 그리고 통합 신용위험관리시스템에 이르기까지 각 단위 시스템이 전체적으로 하나의 시스템으로 통합되어야 한다. 특히, 통합 위험관리시스템은 신용위험을 은행전체의 신용 포트폴리오의 관점에서 측정하고 분석함을 의미한다. 통합 위험관리시스템은 개별 대출기업 혹은 개별 대출에 대한 신용위험을 분석함과 동시에 이를 기초 데이터로하여 은행 전체 신용 포트폴리오의 신용위험 노출정도를 파악한다. 또한, 개별 대출기업의 신용등급 변화로 인한 은행전체 신용위험의 변화를 자동적으로 파악하고 조기 경보함으로써 은행의 총체적인 통합 신용위험관리가 가능하도록 한다.

• 한국지진공학회논문집
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• 제13권6호
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• pp.39-46
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• 2009

구조물의 지진취약도 분석을 위해서는 평가용 지반응답스펙트럼의 선택이 중요한 영향을 미친다. 본 연구에서는 기존의 설계응답스펙트럼을 이용하여 평가된 전력설비에 대하여 등재해도 스펙트럼을 이용하여 취약도 변수를 치환하는 방법을 제시하였다. 제시된 방법을 이용하여 기존의 전력설비를 대상으로 도출된 고신뢰도저파손확률값(HCLPF)을 비교하였으며, 최종적으로 지진재해도 곡선을 이용하여 전력설비에 대한 정량적 지진위험도를 도출하였다. 결과적으로 설계응답스펙트럼을 이용한 지진위험도 평가는 전력설비의 지진위험도를 보수적으로 판단할 수 있는 것으로 평가되었다.

• 한국안전학회지
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• 제29권3호
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• pp.79-84
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• 2014

Human error is one of the major contributors to the accidents. A lot of risk assessment techniques have been developed for prevention of accidents. Nevertheless, most of them were interested in physical factors, because quantitative evaluation of human errors was difficult quantitatively. According to lack of risk assessment techniques about human errors, most of industrial risk assessment for human errors were based on data of accident analysis. In order to develop an effective countermeasure to reduce the risk caused by human errors, a systematic analysis is needed. Generally, risk assessment system is composed of 5 step(classification of work activity, identification of hazards, risk estimation, evaluation and improvement). This study aimed to develop a risk identification technique for human errors that could mainly be applied to industrial fields. In this study, Ergo-HAZOP and Comprehensive Human Error Analysis Technique were used for developing the risk identification technique. In the proposed risk identification technique, Ergo-HAZOP was used for broad-brush risk identification. More critical risks were analysed by Comprehensive Human Error Analysis Technique. In order to verify applicability, the proposed risk identification technique was applied to the work of pile head cutting. As a consequence, extensive hazards were identified and fundamental countermeasures were established. It is expected that much attention would be paid to prevent accidents by human error in industrial fields since safety personnel can easily fint out hazards of human factors if utilizing the proposed risk identification technique.

• Fisheries and Aquatic Sciences
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• 제22권12호
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• pp.29.1-29.7
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• 2019

Veterinary drugs are widely used to protect production-related diseases and promote the growth of farmed fish. The use of large amounts of veterinary drugs may have potential risk and cause adverse effects on both humans and the environment. In this study, we developed risk-based ranking based on a scoring system to be applied in the national residue program. In this approach, the following three factors of veterinary drugs that may occur as residues in fishery products were considered: potency (acceptable daily intake), usage (number of dose and withdrawal period), and residue occurrence. The overall ranking score was calculated using the following equation: potency × usage (sum of the number of sales and withdrawal period) × residue occurrence. The veterinary drugs that were assigned high score by applying this approach were enrofloxacin, amoxicillin, oxolinic acid, erythromycin, and trimethoprim. The risk-based approach for monitoring veterinary drugs can provide a reliable inspection priority in fishery products. The developed ranking system can be applied in web-based systems and residuemonitoring programs and to ensure safe management of fishery products in Korea.

• 산업경영시스템학회지
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• 제23권56호
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• pp.65-85
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• 2000

Industrial accidents have been consistently increased in terms of medical costs, lost work days, and incidence rates every year in Korea. Since the infrastructure of the industry changed shifts rapidly from 1980s in the developing countries such as South Korea, the nature and magnitude of the industrial accidents have also undergone a major shift. The situation is especially severe in small-to-medium sized industry(SMI). This article reports the development of a systematic evaluation system of risk factors specifically for the SMIs. The new approach introduced by this article is geared to the systematic identification and evaluation of the injuries from power press machines using the Analytic Hierarchy Process with the key evaluation data generated and evaluated by the employees on site. A total of 21 companies was studied and surveyed using the hierarchical structures of the cause-effect relationship of the mechanical injuries and their countermeasures. For the relative weighting of each risk factor, separate questionnaire survey was conducted for the selected workers from each company who had worked for more than 10 years in press work. Most participants (48 out of 62) replied that human attributes were the most significant factors for mechanical injuries fellowed by administration, machine, and work environment factors. The result also showed that the self-motivated risk assessment and safety enhancement activities would be an effective and efficient way of managing the risk factors in the SMIs.

• Journal of Information Processing Systems
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• 제16권5호
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• pp.1064-1073
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• 2020

The general situation of system composition and safety management of high-speed railway terminal is investigated and a comprehensive evaluation index system of operational security is established on the basis of railway laws and regulations and previous research results to evaluate the operational security management of the high-speed railway terminal objectively and scientifically. Index weight is determined by introducing interval eigenvalue method (IEM), which aims to reduce the dependence of judgment matrix on consistency test and improve judgment accuracy. Operational security status of a high-speed railway terminal in northwest China is analyzed using the traditional model of fuzzy comprehensive evaluation, and a general technique idea and references for the operational security evaluation of the high-speed railway terminal are provided. IEM is introduced to determine the weight of each index, overcomes shortcomings of traditional analytic hierarchy process (AHP) method, and improves the accuracy and scientificity of the comprehensive evaluation. Risk factors, such as terrorist attacks, bad weather, and building fires, are intentionally avoided in the selection of evaluation indicators due to the complexity of risk factors in the operation of high-speed railway passenger stations and limitation of the length of the paper. However, such risk factors should be considered in the follow-up studies.