• Title/Summary/Keyword: Impact Monitoring

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Graphical display technology of internal impact in remote monitoring and simulation system (원격 모니터링 및 시뮬레이션 시스템의 내부 충격 그래픽 표시 기법)

  • Yoon, Ji-young;Lee, Hyo-jai;Woo, Deok-gun;Jang, Moon-su;Kim, Cheol-hwan
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2022.10a
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    • pp.574-576
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    • 2022
  • In this paper, we developed a technique to graphically display impact effects for remote monitoring or simulation systems. A remote monitoring or simulation system is being used to find a repair time or to prevent accidents while inspecting equipment or facilities in an industrial site in real time. These systems provide visual information to users so that they can analyze problem situations. The technique proposed in this paper is a method of modeling equipment and facilities using 3D graphics, and displaying the location of impact and damage occurring in the equipment inside using volume rendering. This technique has the advantage that the problem can be identified more accurately by displaying the impact animation by volume rendering at the location of the impact and damage inside the equipment. And it is expected that the problem situation can be identified more quickly through more intense visual effects.

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A Real-time Calculation Method on Performance Impact of Controllable Operation Parameters for Combined Cycle rower Plant (복합화력 제어가능 운전 파라미터의 실시간 영향산출 기법)

  • Joo Yong-Jin;Park Jong-Ho
    • Journal of Energy Engineering
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    • v.15 no.1 s.45
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    • pp.67-73
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    • 2006
  • A calculation method on performance impact of the controllable operations parameter such as GT inlet filter ${\Delta}P$, compressor efficiency, and condenser pressure was devised to achieve best performance of combined cycle power plant with the on-line performance monitoring system. This method calculates the performance impact on the deviation between 'Expected' values and 'Actual' values. Controllable parameter targets are determined based on achievable performance given existing equipments and control conditions.

A Study of Effective Collection of Public Opinion on Environmental Impact Assessment (환경영향평가상의 효율성 주민의견 수렴에 관한 연구)

  • Yoo, Heon-Seok;Joo, Yong-Joon;Jeong, Seong-Hoon
    • Journal of Environmental Impact Assessment
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    • v.11 no.4
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    • pp.311-319
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    • 2002
  • Procedures to establish well-balanced development and effectiveness of environmental impact assessment need include various stakeholder's participation in writing and reviewing document of environmental impact assessment, collecting public opinion, and post monitoring. Accordingly, to encourage effective and efficient collection of resident's opinion analyze present conditions and problems and suggest institutional and politic alternative proposals of it. This study resulted in following conclusions. In institutional aspects, (1) Proposal for drafting document of environmental impact assessment (2) Composition of committee for collecting and regulating stakeholder's opinion (3) Width of civil participation scale. In politic aspects, (1) Use of local community (2) Guide of local information from local society and environmental specialist (3) Understandable document and data of environmental impact assessment (4) Strength of roles and duties of local government.

Scoping for Environmental Impact and System Improvement of Marine Sand Mining in Korea (바다골재채취에 따른 환경영향 스코핑과 제도개선)

  • Lee, Dae-In;Eom, Ki-Hyuk;Jeon, Kyeong-Am;Kim, Gui-Young
    • Journal of Environmental Impact Assessment
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    • v.19 no.3
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    • pp.335-345
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    • 2010
  • This paper assessed environmental impacts of marine sand mining on coastal areas and Exclusive Economic Zones (EEZs) of Korea, and diagnosed problems of the related assessment statements for suggesting key assessment items (scoping) and system improvement. To mitigate conflicts and environmental impacts caused by large-scale, concentrated sand mining, we suggest it is critical to promote sustainable and eco-friendly utilization of marine resources while listening opinions from various stakeholders and analyzing alternative plans. Especially, it should be mandatory as a scoping item to provide verifiable data on the amount of sand, potential and accumulative impacts by mining, and key assessment items (e.g. erosion and sedimentation by submarine topography, benthic change, spreading of suspended solids, water pollution, grain-size change, and impact on fisheries resources). We also suggest that postassessment and monitoring should be improved to enable tracking of environmental impacts caused by sand mining through seasonal monitoring together with intermittent short-term surveys. In addition, effective measures to mitigate the impacts is also essential. As repeated sand mining at large-scale can damage marine ecosystems by long-term accumulated impacts, we suggest that assessment systems and regulatory policies should be developed and established, especially for ensuring reliability of assessment and review on selected major sandmining projects.

Problems of Assignable Causes in Process Monitoring and Adjustment (공정 모니터링과 조절에 있어 이상원인의 문제)

  • 이성철;전상표
    • Journal of the Korea Safety Management & Science
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    • v.2 no.4
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    • pp.19-32
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    • 2000
  • Assignable causes producing temporary deviation from the underlying system can influence on process adjustment and process monitoring in dynamic feedback control system. In this paper, the impact of assignable causes on EWMA forecasts and process adjustment which is based on the EWMA forecasts are derived for optimum control methods.

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A Study on the Environmental Impact of Offshore Wind Farms Through Monitoring Case in Overseas Country (W국외 모니터링 사례를 통한 해상풍력발전의 환경적 영향 고찰)

  • Maeng, Jun-Ho;Cho, Beom-Jun;Lim, O-Joung;Seo, Jane
    • Journal of the Korean Society for Marine Environment & Energy
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    • v.16 no.4
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    • pp.276-289
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    • 2013
  • In developing offshore wind farms, many environmental issues arise because of the concentration on supply demand and economic logic. Accordingly, community conflict is induced. Especially, recent studies regarding the capacity and location of offshore wind development have been conducted considering wind states and ocean conditions, etc. of coastal seas in Republic of Korea. Nevertheless, studies on the impact of marine environments and ecosystems are very limited so far. Environmental monitoring that follows development projects has been actively done in the offshore wind farms in many developed European countries. In contrast, there is no domestic monitoring data regarding environmental impacts caused by installing and operating offshore wind power. Therefore, the environmental impacts under construction and operation phases as well as the guidelines in the stage of environmental impact assessment suited for domestic coastal seas are well presented in this study by analyzing monitoring cases and references of overseas offshore wind farm. For this reason, this research is ultimately aimed at minimizing the environmental impact in offshore wind farm development and thus simplify administrative procedures in Korea.

Development of Dynamic Frequency Monitoring Software for Wide-Area Protection Relaying Intelligence (광역 보호계전 지능화를 위한 동적 주파수 모니터링 S/W 개발)

  • Kim, Yoon-Sang;Park, Chul-Won
    • The Transactions of the Korean Institute of Electrical Engineers P
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    • v.61 no.4
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    • pp.174-179
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    • 2012
  • The social and economic level of damages might be highly increased in the case of wide-area black-outages, because of heavy dependence of electricity. Therefore, the development of a wide-area protection relay intelligence techniques is required to prevent massive power outages and minimize the impact strength at failure. The frequency monitoring and prediction for wide-area protection relaying intelligence has been considered as an important technology. In this paper, a network-based frequency monitoring system developed for wide-area protection relay intelligence is presented. In addition, conventional techniques for frequency estimation are compared, and a method for advanced frequency estimation and measurement to improve the precision is proposed. Finally, an integrated monitoring system called K-FNET(Korea-Frequency Monitoring Network) is implemented based on the GPS and various energy monitoring cases are studied.

Linking Clinical Events in Elderly to In-home Monitoring Sensor Data: A Brief Review and a Pilot Study on Predicting Pulse Pressure

  • Popescu, Mihail;Florea, Elena
    • Journal of Computing Science and Engineering
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    • v.2 no.2
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    • pp.180-199
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    • 2008
  • Technology has had a tremendous impact on our daily lives. Recently, technology and its impact on aging has become an expanding field of inquiry. A major reason for this interest is that the use of technology can help older people who experience deteriorating health to live independently. In this paper we give a brief review of the in-home monitoring technologies for the elderly. In the pilot study, we analyze the possibility of employing the data generated by a continuous, unobtrusive nursing home monitoring system for predicting elevated(abnormal)pulse pressure(PP) in elderly(PP=systolic blood pressure-diastolic blood pressure). Our sensor data capture external information(behavioral) about the resident that is subsequently reflected in the predicted PP. By continuously predicting the possibility of elevated pulse pressure we may alert the nursing staff when some predefined threshold is exceeded. This approach may provide additional blood pressure monitoring for the elderly persons susceptible to blood pressure variations during the time between two nursing visits. We conducted a retrospective pilot study on two residents of the TigerPlace aging in place facility with age over 70, that had blood pressure measured between 100 and 300 times during a period of two years. The pilot study suggested that abnormal pulse pressure can be reasonably well estimated (an area under ROC curve of about 0.75) using apartment bed and motion sensors.

Real-time Water Quality Prediction for Evaluation of Influent Characteristics in a Full-scale Sewerage Treatment Plant (하수처리장 유입수의 특성평가를 위한 실시간 수질예측)

  • Kim, Youn-Kwon;Chae, Soo-Kwon;Han, In-Sun;Kim, Ju-Hwan
    • Journal of Environmental Impact Assessment
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    • v.19 no.6
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    • pp.617-623
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    • 2010
  • It is the most important subject to figure out characteristics of the wastewater inflows of sewerage treatment plant(STP) when situation models are applied to operation of the biological processes and in the automatic control based on ICA(Instrument, Control and Automation). For the purposes, real-time influent monitoring method has been applied by using on-line monitoring equipments for the process optimization in conventional STP. Since, the influent of STP is consist of complex components such as, COD, BOD, TN, $NH_4$-N, $NO_3$-N, TP and $PO_4$-P. MRA2(Microbial Respiration Analyzer 2), which is capable of real-time analyzing of wastewater characteristics is used to overcome the limitations and defects of conventional online monitoring equipments in this study. Rapidity, accuracy and stability of developed MRA2 are evaluated and compared with the results from on-line monitoring equipments for seven months after installation in Full-scale STP.