• 제목/요약/키워드: operation status monitoring

검색결과 258건 처리시간 0.024초

무인가공을 위한 PC 카메라 기반의 모니터링 (PC-Camera based Monitoring for Unattended NC Machining)

  • 송시용;고기훈;최병규
    • 산업공학
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    • 제19권1호
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    • pp.43-52
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    • 2006
  • In order to make best use of NC machine tools with minimal labor costs, they need to be in operation 24 hours a day without being attended by human operators except for setup and tool changes. Thus, unattended machining is becoming a dream of every modern machine shop. However, without a proper mechanism for real-time monitoring of the machining processes, unattended machine could lead to a disaster. Investigated in this paper are ways to using PC camera as a real-time monitoring system for unattended NC milling operations. This study defined five machining states READY, NORMAL MACHINING, ABNORMAL MACHINING, COLLISION and END-OF-MACHINING and modeled them with DEVS (discrete event system) formalism. An image change detection algorithm has been developed to detect the table movements and a flame and smoke detection algorithm to detect unstable cutting process. Spindle on/off and cutting status could be successfully detected from the sound signals. Initial experimentation shows that the PC camera could be used as a reliable monitoring system for unattended NC machining.

마을 내 잔존 노거수의 생육현황 및 실태진단 - 경주시 현곡면을 중심으로 - (Diagnosis of the growth status and actual condition of the remaining old trees in the village - Focused on Hyeongok-myeon in Gyeongju-si -)

  • 김영훈;덩베이지아;천겅;유주한
    • 한국환경복원기술학회지
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    • 제23권6호
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    • pp.109-123
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    • 2020
  • The purpose of this study is to provide basic data for the establishment of future countermeasures by diagnosing the growth status and actual condition of undesignated old trees distributed in Hyeongok-myeon, Gyeongju, Gyeongsangbuk-do. The number of old trees surveyed was 2 weeks in Gajeong-ri, 2 weeks in Haguri, 3 weeks in Nae-Tae-ri, 1 week in Nawon-ri, 6 weeks in Oryu-ri, 3 weeks in Sangguri, and 2 weeks in Sohyeon-ri, The trees species composition was 6 trees Celtis sinensis Pers., 1 Diospyros lotus L. trees, 4 trees Salix chaenomeloides Kimura trees, 2 Styphnolobium japonicum L. trees, and 7 Zelkova serrata (Thunb.) Makino trees. Growth status is 7.1~22.0m in height, 14.6~25.1m in long axis, 10.2~19.2m in short axis, root diameter is 76.0~236.4cm, diamter at breast height is 67.0~220.0cm, soil acidity is pH4.9~7.0, soil The hardness was measured to be 4.0-27.0mm. The result grade of the scoring data of health information is represented by monitoring generally, monitoring critically, and absolute monitoring, and it was confirmed that out of the 20 trees population in Hyeongok-myeon, the general monitoring grade was 7 weeks, the major monitoring grade was 13 weeks, and there was no absolute monitoring grade. Accordingly, the number of old trees of the general surveillance level was maintained at the current level, and ecological surgical operations were introduced for the major surveillance level, but the case of village forests should be different, and sequential treatments were the old tree urgently needed. The level and bark of the target tree, the state of the crown, the root exposure, the presence of pests and pests, the vitality and the ground condition, the degree of pollution are normal, poor, or very poor, operation and protection management, soil improvement, removal of cover, and disinfection were urgently needed for the old trees with the surveyed data. In order to compensate for these matters, continuous monitoring and management measures for the old number should be sought.

농촌중심지 마을만들기를 위한 계획수립과 모니터링 개선 방안 (A Study on the Improvement of Planning and Monitoring for the Rural Center Village Development Project)

  • 강신길;최영완;김근호;김영주
    • 농촌계획
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    • 제24권3호
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    • pp.117-125
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    • 2018
  • After it was reorganized as the rural center revitalization project recently, there is an opinion that the nature of the project was changed to solve long-time aspired projects of some districts unlike various projects according to the previous project purposes. Therefore, this study analyzes the current status of revitalization project plans and operation monitoring to make rural center villages, establishes plans that can be applied to the rural center village revitalization project and suggests the improvement plans for monitoring. With the necessity of connectivity with centrality analysis for long-term and sustainable growth of the rural center revitalization project, the analysis on the 8 districts' centrality analysis and the function of the master plan were compared and analyzed, but there is not enough interrelation. Regarding the consulting methods for weak districts to activate facility operation after the project is implemented, the field consulting performed by the collaboration of Gyeongsangnam-do government, Gyeongnam Rural Revitalization Support Center and Gyeongnam branch of Korea Rural Community Corporation shows 87.6% of satisfaction level, which indicates it is the most effective. Based on the above results, it is necessary to reinforce the methods on resident demand survey, dimension and the reflection process of the project when preliminary plans are established for effective implementation of the rural center village revitalization project. It is also necessary to revise relevant standards not to change preliminary plans excessively during the master plan establishment process, and to oblige preliminary investigation of experts. The joint monitoring and consulting systems of experts and local governments should be applied from the establishment stage of the master plan, so that it can be sustainable rural center village revitalization project.

System Integration for the Operation of Unmanned Audio Center based on AoIP

  • Lee, Jaeho;Hamacher, Alaric;Kwon, Soonchul;Lee, Seunghyun
    • International journal of advanced smart convergence
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    • 제6권2호
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    • pp.1-8
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    • 2017
  • Recently, the development of the information communication industry has made many changes in the industrial acoustic industry. Especially, it has a great influence on the change of system and equipment of acoustic system. Analog equipment is changing to digital equipment, and integrated control equipment makes it easier to operate and manage the sound system. However, the integrated control system currently on the market is only controllable for some devices. In this paper, we propose a new AoIP - based system configuration method, which enables the operation status monitoring, unmanned operation and self - diagnosis of equipment. As a result of the study, it is confirmed that the proposed system can be operated, monitored, and self - diagnosed at remote sites. It is expected that an AoIP- based sound system will be the industry standard in the future.

국가교육과정 모니터링단의 법적 문제와 과제 (Legal Issues and Challenges of National Curriculum Monitoring Group)

  • 박창언
    • 국제교류와 융합교육
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    • 제4권2호
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    • pp.21-41
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    • 2024
  • 이 연구의 목적은 국가교육과정모니터링단의 법적 규정과 그에 따른 문제와 과제를 모색하는데 있다. 연구 방법은 문헌 연구와 법 해석, 그리고 면담의 방법을 사용하였다. 문헌 연구는 국가교육과정모니터링단 관련 법제 및 정책 및 현황 분석에 활용하였고, 법 해석은 국가교육과정모니터링 관련 법 규정의 체계와 논리 정립을 위해 사용하였다. 면담은 법 해석에서의 오류를 줄이기 위해 법학전문대학원 교수와 교육전문직의 자문을 구해 본문 내용의 전개에서 직·간접적으로 활용하였다. 연구의 주요 내용은 우선 연구에 대한 문제의식을 바탕으로 법적 성격과 제도의 필요성에 대해 살펴보았다. 다음으로 국가교육과정모니터링단의 운영에 대한 평가를 하고, 이들 평가 결과를 토대로 문제와 과제를 제시하였다. 논의 결과는 법 시행령상의 문제와 과제, 고시 규정의 문제와 과제로 구분하여 제시하였다. 법 시행령상의 문제와 과제는 법률의 근거가 없는 목적의 규정, 설치의 임의성과 의견 제출의 의무성에 대한 불일치 규정, 모니터링단 조직의 구성과 역할의 불일치에 대한 논의를 하였다. 고시 규정상의 문제와 과제에서는 모니터링과 모니터링단 정의의 불일치, 인적 구성에서 대표성을 위한 자격 기준의 엄격성, 모니터링 범위의모니터링 정의와의 부정합성으로 구분하여 논의하였다. 이들 논의 결과 대표성에 치중을 하면서 조직을 구성함으로써 조직의 구성이 특수이익집단화 될 수 있는 여지가 있어 전문성을 토대로 대표성을 확립하기 위한 법제 개편과 운영의 합리화가 요청되었다.

노인장기요양보험 급여 주야간보호사업소의 운영현황 (Current Management Status of 'Day and Night Care Facilities' for Long-Term Care Insurance Benefit)

  • 진영란;전경숙;이효영
    • 한국노년학
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    • 제31권4호
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    • pp.985-998
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    • 2011
  • 본 연구는 노인장기요양보험제도 도입 이후 주야간보호사업소 운영현황을 파악하고 가동률 관련 요인을 탐색하고자 하였다. 전국 주야간보호사업소에 2010년 7월 14일에서 7월 28일까지 설문지를 우편 발송하여 설문에 성실히 응답한 277개소의 조사지를 분석하였다(응답률 24.5%). 사업소의 운영주체는 법인이 219개소(79.1%), 개인이 48개소(17.8%), 국공립 등이 10개소(3.6%)이었으며, 평균 가동률은 국공립 등은 79.08%, 법인은 72.49%인 반면, 개인운영 사업소는 57.58%로 낮았다. 사업소 운영주체별로 전체 인력 수에는 차이가 없었으나, 국공립 사업소는 간호사 수가 1.07명인데 비해 개인 사업소는 0.08명으로 유의한 차이가 있었다. 법인 및 국공립사업소가 개인사업소보다 프로그램 실시율이 높았고, 신체활동, 음악활동, 물리치료, 레크레이션, 작업치료 등에서는 통계적으로 유의한 차이가 있었다. 본 연구결과에 기초할 때, 개인운영 사업소와 2008년 이후에 설립된 사업소에 대해 대상자 평가 및 모니터링, 프로그램 실시에 대한 교육훈련 및 서비스 질 관리를 강화할 필요성이 제기된다. 또한, 주야간보호서비스 이용자의 가족에 대한 실효성 있는 지원을 강화하여 주야간보호서비스에 대한 수요를 확대해야 할 것이다.

Design and Implementation of Data Processing Middleware and Management System for IoT based Services

  • Lee, Yon-Sik;Mun, Young-Chae
    • 한국컴퓨터정보학회논문지
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    • 제24권2호
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    • pp.95-101
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    • 2019
  • Sensor application systems for remote monitoring and control are required, such as the establishment of databases and IoT service servers, to process data being transmitted and received through radio communication modules, controllers and gateways. This paper designs and implements database server, IoT service server, data processing middleware and IoT management system for IoT based services based on the controllers, communication modules and gateway middleware platform developed. For this, we firstly define the specification of the data packet and control code for the information classification of the sensor application system, and also design and implement the database as a separate server for data protection and efficient management. In addition, we design and implement the IoT management system so that functions such as status information verification, control and modification of operating environment information of remote sensor application systems are carried out. The implemented system can lead to efficient operation and reduced management costs of sensor application systems through site status analysis, setting operational information, and remote control and management.

혈복강 수술 환자에게서 발생한 지연성 외상성 뇌실질내 출혈 (Delayed Traumatic Intracerebral Hemorrhage in Patient with Hemoperitoneum Operation)

  • 김소현;배금석;변진수;김종연;조성민;노하니;황금;오지웅
    • Journal of Trauma and Injury
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    • 제26권3호
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    • pp.233-237
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    • 2013
  • Delayed traumatic intracerebral hemorrhage (DT-ICH) is a rare event in head trauma patients. However, it develops unexpectedly and results in very severe brain damage. Thus, close monitoring of the neurologic status is needed for every trauma patient. Sometimes, however, neurologic monitoring cannot be done because of sedation, especially in cases of abdominal surgery. In this case report, we describe the case of a 37-yr-old, male patients who had hemoperitoneum because of spleen and renal injury. At the initial operation, massive bleeding was found, so gauze-packing surgery was done first. After the first operation, we sedated the patient for about two days, after which the packed gauze was removed, and the abdominal wound was closed. Immediately after the second operation, we found pupil dilation. Emergent CT was performed. The CT revealed DT-ICH with severe brain edema and midline shifting. However, the patient condition deteriorated progressively despite emergency operation, he expired 2 days after hematoma evacuation.

Computer Based Core Monitoring System for an Operating CANDU Reactor

  • Yoon Moon Young;Kwon Hwan O.;Kim Kyung Hwa;Yeom Choong Sub
    • Nuclear Engineering and Technology
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    • 제36권1호
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    • pp.53-63
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    • 2004
  • The research was performed to develop a CANDU-6 Core Monitoring System(CCMS) that enables operators to have efficient core management by monitoring core power distribution, burnup distribution, and the other important core variables and managing the past core history for Wolsong nuclear power plant unit 1. The CCMS uses Reactor Fueling Simulation Program(RFSP, developed by AECL) for continuous core calculation by integrating the algorithm and assumptions validated and uses the information taken from Digital Control Computer(DCC) for the purpose of producing basic input data. The CCMS has two modules; CCMS server program and CCMS client program. The CCMS server program performs automatic and continuous core calculation and manages overall output controlled by DataBase Management System. The CCMS client program enables users to monitor current and past core status in the predefined GUI(Graphic-User Interface) environment. For the purpose of verifying the effectiveness of CCMS, we compared field-test data with the data used for Wolsong unit 1 operation. In the verification the mean percent differences of both cases were the same($0.008\%$), which showed that the CCMS could monitor core behaviors well.

국내 작업환경측정기관의 측정 및 분석장비 보유실태에 대한 고찰 (I) (Evaluation of the Possession of Measurement and Analytical Instruments among Domestic Work Environment Monitoring Service Providers (I))

  • 장재길
    • 한국산업보건학회지
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    • 제23권3호
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    • pp.250-260
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    • 2013
  • Objectives: The aim of this study is to analyze the current status of the possession of measurement and analytical instruments among work environment monitoring organizations that have been designated by the Ministry of Employment and Labor (MoEL) in Korea. Methods: Data for measurement and analytical instruments were gathered by inspectors who had been assigned by the Korea Occupational Safety and Health Agency (KOSHA) and MoEL during the evaluation program for designated work environment monitoring service providers in 2012. Data for 11 monitoring instruments and nine analytical instruments were collected from 108 organizations. Basic data such as the type of service provides and the size of employment were also recorded by the inspector. Results: The total number of personal air samplers including high and low flow rates operated in Korea was 5,418, with average of 50.2. Average operation number of noise dosimeters was 35.0, while 3,780 dosimeters were used in 108 work environment monitoring organizations. There were 10,488 monitoring instruments in total. All service providers possessed at least one AAS and GC in their analytical laboratory. Total number of HPLC/MS was five, followed by ICP/MS of seven, with an average of 0.07. Conclusions: Based on the data, domestic work environment monitoring service providers possessed relatively reasonable measurement and analytical instruments. Nearly all instruments had been imported from advanced countries such as USA, UK and Japan. Periodic gathering of data on these instruments may help maintain good workplace monitoring results and the health of workers at the sites.