• 어항어장
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• s.78
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• pp.35-38
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• 2007

안전점검결과 취약시설물 대부분이 정밀점검을 통하여 판단되었으므로, 향후 연차적으로 정밀점검 대상항의 확대 추진과 주기적인 저밀안전진단 실시방안도 검토되어야 할 것이다.아울러, 자연재해로부터 어민의 생명과 재산을 안전하게 보호하기 위해 보다 더 체계적이고 과학적인 안전유지관리시스템과 첨단장비도 점차 마련되어야 할 것이다.

• Aerospace Engineering and Technology
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• v.12 no.2
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• pp.173-179
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• 2013

This paper describes a testbed that was designed and implemented for the development of KSLV-II onboard equipment simulator. It used the CPCI-based industrial hardware system for scalability and the QNX real-time operating system for reliability and real-time simulation. In addition, a real-time application under QNX for function simulations of the KSLV-I PDU was developed and it was verified through interface experiments with KSLV-I upper-stage test equipment. The implemented simulator testbed will be used to verify the development feasibility in the design and development phase of a real KSLV-II onboard equipment simulator.

• Proceedings of the Safety Management and Science Conference
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• 2012.11a
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• pp.293-301
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• 2012

공연장의 무대기계설비 시스템 및 조명장비 시스템 설치 완료 후 각 시스템의 최종 검사에 적용되는 검사 기준과 검사 방법을 명시함으로써 효율적으로 최종 설비 상태를 점검하고, 발주처의 최종 검사에 효과적으로 대비할 수 있게 하고 안전사고를 미리 예방할 수 있게 하기 위하여 연구하였다.

• Aerospace Engineering and Technology
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• v.13 no.1
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• pp.55-62
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• 2014

FTSR(Flight Termination System Receiver) is a device that receives a ground command signal to abort a flight mission when abnormal conditions occur in the space launch vehicle. The secure tone command message shall consist of a series of 11 character tone pattern. Each character consists of the sum of two tones which taken from a set of 7 tones defined by IRIG(Inter-Range Instrumentation Group) in the audio frequency range. The MHA(Modified High alphabet) command adds a security feature to the secure tone command by using the predefined difference code. In order to check the function and performance of MHA FTSR, which is under development, for KSLV-II, the testbed should have functions of RF signal generation, receiver's output port monitoring, RS-422 communication and test data management. In this paper, we first briefly introduce MHA command and FTSR interface, and then show the LavVIEW based testbed include its H/W configuration, S/W implementation and test results.

• Journal of the Society of Disaster Information
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• v.16 no.1
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• pp.178-191
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• 2020

Purpose: This paper proposes a performance evaluation method for state-of-the-art facility inspection/diagnostic equipment through a trend survey of equipment and standardization systems of US, Japan, and Korea. This paper also suggests the priority of developing a performance evaluation method through expert interviews and surveys. Method: In this study, report for the last 5 years of FMS, state-of-the-art equipment of facility maintenance companies/safety diagnosis specialist agencies and papers/research reports/patents of NTIS were analyzed to identify recent trends of facility inspection/diagnostic equipment usages. standardization system of US, Japan, and Korea were analyzed to figure out a suitable form of a performance evaluation method for the domestic situation. And expert interview and survey were conducted to identify the priority of developing a performance evaluation method. Result: The performance evaluation method must be developed by the shape that only evaluates performance, regardless of types of equipment, on inspection item level for creative technology development. The priority of developing the performance evaluation method was identified as crack detection of concrete for durability evaluation and displacement/deformation/fatigue detection of concrete and steel for stability evaluation. Conclusion: The performance evaluation method will be developed firstly for the crack detection of concrete for durability evaluation and displacement/deformation/fatigue detection of concrete/steel for stability evaluation. In order to promote creative technology development, the performance evaluation method should be developed in a form that provides standardized specimens or testbeds and can be applied regardless of types of technologies.

• Proceedings of the Korea Contents Association Conference
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• 2010.05a
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• pp.5-9
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• 2010

최근 IT산업의 발달과 더불어 내장형 시스템에서의 실시간성은 더욱 중요시되고 있다. 내장형 시스템에서 사용되는 많은 운영체제 중 윈도우즈는 실시간성 지원의 부재로 로봇 플랫폼이나 점검장비와 같은 실시간성이 필수적으로 요구되는 시스템에는 적합하지 않다. 이러한 결점을 보완하기 위해 개발된 실시간 이식커널(Real-Time implanted Kernel)은 윈도우즈에 실시간성을 보장해주지만 ISR(Interrupt Service Routine) 처리시간이 길어질 수 있는 문제가 있다. 본 논문에서는 ISR의 작업을 윈도우즈가 제공하는 지연처리호출(Deferred Procedure Call)에서 처리함으로써 인터럽트 지연시간을 줄이는 실시간 이식커널(RTiK)을 설계 및 구현하였다.

• Proceedings of the IEEK Conference
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• 1999.06a
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• pp.1083-1086
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• 1999

중수로(CANDU) 형 월성 원자력발전소의 칼란드리아 압력관 전면부를 감시점검하기 위한 열영상 관측시스템을 설계/제작하였다. 중수로는 가동중에 핵연료를 교체한다. 칼란드리아 전면부에는 380 개의 압력관 채널이 위치하고 있다. 핵연료를 교체할 시에 핵연료 교체장비가 칼란드리아 압력관 채널의 ENDCAP을 열고 핵연료를 장전하는 과정에서 발생할 지도 모르는 중수누출, 핵연료교체장비의 이상상태를 점검하는데 목적이 있다. 열영상카메라는 상용 CCD 카메라에 비해 영상의 해상도가 떨어진다. CCD 카메라는 수증기 누출과 같은 육안검사에 활용하고, 열영상카메라는 압력관 채널의 온도변화 등을 점검하기 위해 CCD/열영상카메라의 융합구조로 설계/제작하였다.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.8 no.1
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• pp.57-66
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• 2014

This study has been conducted to identify the current status and practices of electrical stimulation for patients with dysphagia in Korea. Main goal of the study is to find evidences of developing and distributing a quality indicator and organized performance exam. This study analyzed 50 survey questionnaires given to clinical professionals in upper-scale general hospitals, university hospitals, nursing homes and professional rehabilitation hospitals. The survey sent out and collected by E-mails or interviews from August 21, 2013 to November 10, 2013. Most of the hospitals showed lack of using a quality indicator and organized performance exams in device maintenance, pre-operational tests and post-operational tests. It is strongly recommended to develop a standardized guideline of a higher quality indicator and organized performance exam in using neuromuscular electrical stimulator for patients who are suffering from dysphagia.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2023.05a
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• pp.270-271
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• 2023

해양 4차 산업 도래에 맞춰 기존 항로표지 역할에 ICT 기술을 융합하여 근거리에서 통신을 활용하여 항로표지의 점검 및 관리시스템 개발의 요구가 있다. 항로표지 점검 시 관리자들의 편의와 점검을 위하여 선박 접안 사고 예방 등 근거리 통신을 적용한 장비 점검 시스템 개발이 필요하다.. 본 논문에서는 현황 분석을 통하여 근거리 점검 시스템 설계 방향을 제시하였다. 다양한 분야에서 무선 통신을 활용한 점검 및 모니터링 기술을 분석하여 시스템 구성 방향을 제시하였고, 현재 운영중인 항로표지 관리운영 시스템을 분석하여 점검을 위하여 표출할 정보를 검토하였다. 향후 설계 방향을 바탕으로 시스템을 개발하고 성능 평가를 수행할 예정이며, 관리의 편의를 위하여 정보협력센터에 제공할 이력 정보를 검토할 예정이다.

• Convergence Security Journal
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• v.9 no.2
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• pp.33-39
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• 2009

The problems of current network security system, separated by a single element is checked. To improve this, this thesis is to find vulnerabilities in the network security systems, and network security systems, security equipment, organic to make sure each works is a comprehensive review. Automation also offers a way to check it, it was implemented.