• 한국재난관리표준학회지
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• 제2권3호
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• pp.47-53
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• 2009

본 연구에서는 기구축 계측시스템의 안전관리 네트워크 시스템(국토해양부, 2008) 연계 가능성을 타진하기 위해서 신공항하이웨이(주) 관할 현수교인 영종대교 계측시스템의 안전관리 네트워크 시스템 연계 시범구축을 실시하였다. 기구축 계측시스템 데이터 연계를 위하여 DAQ Sender 서버 프로그램과 DAQ Receiver 서버 프로그램으로 구성되는 연계 프로그램을 개발하였다. DAQ Sender 서버 프로그램은 기구축 계측시스템 전산센터 내 중립지역 (DMZ ZONE)de미리 설치 서버계서버설치되운영되는 프로그램으로 기구축 계측시스템과의 통신을 담당한다. DAQ Receiver 서버 프로그램은 안전 관리 네트워크 시스템 통합운영 센터 내 연계서버에 설치되어 운영되는 프로그램으로 DAQ Sender와 통신을 통해 실시 간 및 기간이력 데이터를 수집하고 이를 통합운영 서버에 저장하는 역할을 수행한다. 본 시범구축 결과 기구축 계측시스템으로부터 연계항목을 구성하고 실시간 및 기간이력 데이터를 성공적으로 연계 할 수 있었다. 따라서 향후 각 기구축 계측시스템들을 통합할 때 필요한 연계방안의 토대를 마련할 수 있었다.

• Nuclear Engineering and Technology
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• 제38권6호
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• pp.575-584
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• 2006

As the development of total management systems for sites along with site environmental information is becoming standard, the system known as the Site Information and Total Environmental database management System (SITES) has been developed over the last two years. The first result was a database management system for storing data obtained from facilities, and a site characterization in addition to an environmental assessment of a site. The SITES database is designed to be effective and practical for use with facility management and safety assessment in relation to Geographic Information Systems. SITES is a total management program, which includes its database, its data analysis system required for site characterization, a safety assessment modeling system and an environment monitoring system. It can contribute to the institutional management of the facility and to its safety reassessment. SITES is composed of two main modules: the SITES Database module (SDM) and the Monitoring & Assessment (M&A) module [1]. The M&A module is subdivided into two sub-modules: the Safety Assessment System (SAS) and the Site Environmental Monitoring System (SEMS). SAS controls the data (input and output) from the SITES DB for the site safety assessment, whereas SEMS controls the data obtained from the records of the measuring sensors and facilities. The on-line site and environmental monitoring data is managed in SEMS. The present paper introduces the procedure and function of the M&A modules.

• 대한안전경영과학회지
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• 제13권2호
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• pp.1-8
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• 2011

The Chicago Convention in 1944 made important contributions to aviation safety improvement, building an aviation safety monitoring system for its signatory countries. As ICAO is now on the verge of changing its supervision system from self-reporting to preventive Continuous Monitoring Approach(CMA) in 2013, we also expect our own safety system to make a progress accordingly. The government is pushing ahead with plans to build an integrated safety management system at government level that satisfies international standards and reflects domestic features. To this end, this report proposes the most effective system-building model, by analyzing the current status of the system that is in use and meets the requirements of international aviation agencies.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.324-327
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• 2015

Scaffold is the most commonly used equipment in various types of construction works. Since various types of construction works use the same scaffold equipment, it becomes more difficult to be controlled and managed, thus resulting hazard frequently. According to the information announced in July 2012 by Council of Labor Affairs Executive Yan, the site collapse or incomplete anti-falling protection has led the site to accident frequently, and this is the main reason that causes construction industry occupational disasters. The labor death occupational hazard ratio rises up to 13% in scaffold activity, and the Council of Labor Affairs Executive Yan has showed that the death ratio is higher when using the scaffold in construction site, the total number of death has reached to 139 from 2005 to 2010. In order to ensure the safety of scaffold user, this study tends to build a wireless sensor monitoring system to detect the reliability and safety of the scaffold. The wireless sensor technique applies in this study is different with the traditional monitoring technique which is limited with wired monitoring. Wireless sensor technique does not need wire, it just needs to consider the power supply for establishing the network and receiving stable information, and it can become a monitoring system. In addition, this study also integrates strain gauge technique in this scaffold monitoring system, to develop a real-time monitoring data transfer mechanism and replace the traditional wired single project monitoring equipment. This study hopes to build a scaffold collapse monitoring system to effectively monitor the safety of the scaffold as well as provide the timesaving installation, low-cost and portable features.

• 해양환경안전학회지
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• 제27권7호
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• pp.1129-1136
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• 2021

본 논문은 선박 기관실 내의 효율적인 감시를 위한 팬-틸트-줌(PTZ) 카메라 기반의 모니터링 시스템의 설계 방법을 다룬다. 선박 기관실에는 여전히 전통적인 아날로그 계기들을 사용하는 곳이 많고, 침수나 화재 등 안전과 밀접하게 관련된 사각지대들이 다수 존재한다. 이러한 감시 개소들에 대하여 비교적 빠른 주기로 넓은 범위를 보장하는 카메라 기반 감시 시스템은 선박의 안전을 강화시킬 수 있는 효과적인 대안이 될 수 있다. 이에 본 연구에서는 기존 PTZ 카메라의 기능들을 소프트웨어적 방법으로 더욱 강화시킨 형태의 모니터링 시스템을 제안한다. 보다 구체적으로는 카메라제어 모듈, 위치등록 모듈, 순회제어 모듈, 멀티뷰 영상재구성 모듈로 구성된 모니터링 시스템의 설계 방법을 제안하고, 제안된 방법은 기관실 환경에서의 실험을 통해 그 효용성을 평가한다.

• 한국화재소방학회논문지
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• 제30권4호
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• pp.103-110
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• 2016

가스계소화설비의 수요는 매해 증가하고 있으나, 늘어나는 수요에 대비한 시스템의 안전성 및 신뢰성등 소화성능에 필요한 안전대책이 미흡하여 사회적인 문제가 되고 있는 실정이다. 본 연구에서는 이러한 문제점을 해결하기 위하여 가스 소화시스템의 사고발생 원인 중에서 가장 심각한 문제인 소화약제 저장용기에서 발생하는 압력누기는 화재진압의 성패를 좌우하는 중요한 요소로 시급한 대책이 요구되는 문제점로 판단하여 연구를 하였다. 새로 개발한 압력누기감시장치는 화재진압에 중요한 요소인 소화농도와 관련이 있는 저장용기의 약제확보상태와 압력 및 누기, 방출상태 등을 감시하는 장치로 $CO_2$와 HFC-23 시스템에 적용할 수 있도록 개발하였다. 즉, 압력누기감시장치를 가스소화설비에 적용하였을 때 발생할 수 있는 구조적 안전성 분석을 위하여 유체-구조연계해석을 통하여 안전성능을 검증하였다. 해석에 사용한 프로그램으로 전산유체해석은 Mentor Graphics사의 FloEFD 프로그램을 사용하였고, 구조해석 프로그램은 Dassault systems사의 ABAQUS를 사용하였다. 수치해석결과 $CO_2$용의 구조에서는 소성변형이 발생하지 않아 안전성을 확인하였으나 HFC-23용 감시장치에는 소성변형 및 이탈문제가 발생하여 설계수정과 3차례의 수치해석 조건을 수정하여 얻은 데이터를 기본으로 압력누기감시장치의 구조적인 안전성을 확인하였다.

• 한국안전학회지
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• 제32권2호
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• pp.78-84
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• 2017

Subcontractors have an increased risk of accidents compared to large contractors. Subcontractors' safety management system is in close association with workers in construction sites. Contractors should strengthen subcontractors' roll and responsibility and provide continual support to prevent an accident. And also these supporting system should be provided to subcontractors' headquarters as well as construction site. Contractors' priority management for subcontractors safety should be transferred from the post management for disciplinary action to the preventive management to improve subcontractors participation and safety performance. Subcontractors can not establish the safety management system with just a one time supporting only. Contractors support and monitoring should be provided to subcontractors regularly and continuously to establish their self safety management system. The subcontractors safety management system improvement program(SSMSIP) suggested in this study will be a effective supporting system for subcontractors to establish and improve their safety management system. If we carry out the objective and quantitative evaluations and supporting system such as SSMSIP and provide the consequential incentive program to subcontractors, it can contribute to the accident reduction.

• 한국철도학회:학술대회논문집
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• 한국철도학회 2008년도 추계학술대회 논문집
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• pp.73-78
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• 2008

There has been need for safety monitoring systems for the social infrastructures. These infrastructures are subject to degradation over time, reduced functionality, and loss of functionality as a result of factors such as a wide variety of installation environments, natural disasters, and nearby work. Therefore, it is necessary to perform appropriate inspections, repairs, and renovations to ensure safe and efficient maintenance and operation. This paper introduces the example of the development of the safety monitoring system for operating railway tunnel. Tunnel profile measuring system using laser beam, crack gauges, accelerometer and a pluviometer were implemented to monitor the safety of a deteriorated tunnel. The measured data were transferred through wireless network and analyzed in real time. The safety criteria for tunnel stabilities and train operations are also discussed.

• 한국가스학회지
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• 제12권2호
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• pp.42-47
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• 2008

독성가스나 가연성 폭발 위험이 있는 원료를 운반하는 탱크로리 및 벌크로리는 출발지에서부터 목적지 및 중간 경로를 따라 지속적으로 차량 및 탱크의 다양한 상태를 모니터링하는 것이 안전을 위해 필요하다. 따라서, 본 논문은 탱크로리 운행에 관한 안전 모니터링 시스템에 관하여 제안하고, 운전상태 및 탱크 또는 차량의 상태를 모니터링하기 위한 센서시스템과 차량 내 컴퓨터와 중앙 관제 시스템의 연계에 관하여 고찰한다.

• 한국산업보건학회지
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• 제33권2호
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• pp.215-229
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• 2023

Objectives: To validate the effectiveness of a real-time chemical exposure monitoring system developed by KOSHA (Korea Occupational Safety and Health Agency), we applied the system to a workplace in the electronics industry for 153 days. Methods: The monitoring system consisted of a PID chemical sensor, a LTE communication equipment, and a web-based platform. To monitor chemical exposure, four sets of sensors were placed in two manufacturing tasks - inspection and jig cleaning - which used TCE as a degreasing agent. We reviewed previous reports of work environment measurements and conducted a new work environment measurement on one day during the period. The PID sensor systems detected the chemical exposure levels in the workplace every second and transmitted it to the platform. Daily average and maximum chemical exposure levels were also recorded. Results: We compared the results from the real-time monitoring system and the work environment measurement by traditional methods. Generally, the data from the real-time monitoring system showed a higher level because the sensors were closer to the chemical source. We found that 28% of jig cleaning task data exceeded the STEL. Peak exposure levels of sensor data were useful for understanding the characteristics of the task's chemical use. Limitations and implications were reviewed for the adoption of the system for preventing poisoning caused by chemical substances. Conclusions: We found that the real-time chemical exposure monitoring system was an efficient tool for preventing occupational diseases caused by chemical exposure, such as acute poisoning. Further research is needed to improve the reliability and applicability of the system. We also believe that forming a social consensus around the system is essential.