• Title/Summary/Keyword: Monitoring simulator

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Development of an Open Architecture CNC and Integration with Intelligent Modules (개방형 CNC 개발 및 지능형 모듈 통합)

  • 윤원수;이강주;김형내;이은애;박천기
    • Proceedings of the Korean Society of Precision Engineering Conference
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    • 2002.10a
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    • pp.37-41
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    • 2002
  • This study has been focused on the development of an open architecture CNC system and integration of core application technology for machine tool such as a remote monitoring/diagnosis system, NURBS interpolation, and cutting process simulation. To do this, we have developed a comprehensive CNC software including the basic HMI, screen editor, ASF, and visual builder. As a control hardware system for machine tool, the universal I/O module and CNC main unit have been developed. Then the remote monitoring/diagnosis system and NURBS interpolation have been implemented in the CNC software. The cutting simulation software will be used for enhancing the productivity of machine tools. Through a simulator and test bed, the whole technology has been verified.

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SAT#1 (Preliminary Integration) Test Results of KASS System

  • Jeong, Hwanho;Jang, HyunJin;Kim, Koontack;Lee, Jaeeun;Lee, ByungSeok
    • Journal of Positioning, Navigation, and Timing
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    • v.10 no.2
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    • pp.145-151
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    • 2021
  • According to the Korea Augmentation Satellite System (KASS) system milestone, Site Acceptance Test (SAT) has three steps test until the end of the project. SAT#1 is the first time of SAT steps and verify the KASS Reference Station (KRS) and Sub System (S/S) for the monitoring and controllable. After the equipment and software were installed at the Mission Control Center (MCC) with Central Monitoring and Control Simulator (CMS) for the SAT#1, the 1:1 test was progressed when the KRS and S/S are ready to test. SAT#1 has a 10 steps test case and it was progressed each KRS sites. The test was finished throughout the real-time monitoring and the data collection including the data analysis all of the 7 KRS sites. Finally SAT#1 was completed on December 2020 with successfully.

Driving behavior Analysis to Verify the Criteria of a Driver Monitoring System in a Conditional Autonomous Vehicle - Part I - (부분 자율주행자동차의 운전자 모니터링 시스템 안전기준 검증을 위한 운전 행동 분석 -1부-)

  • Son, Joonwoo;Park, Myoungouk
    • Journal of Auto-vehicle Safety Association
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    • v.13 no.1
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    • pp.38-44
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    • 2021
  • This study aimed to verify the criteria of the driver monitoring systems proposed by UNECE ACSF informal working group and the ministry of land, infrastructure, and transport of South Korea using driving behavior data. In order to verify the criteria, we investigated the safety regulations of driver monitoring systems in a conditional autonomous vehicle and found that the driver monitoring measures were related to eye blinks times, head movements, and eye closed duration. Thus, we took two different experimental data including real-world driving and simulator-based drowsy driving behaviors in previous studies. The real-world driving data were used for analyzing blink times and head movement intervals, and the drowsiness data were used for eye closed duration. In the real-world driving study, 52 drivers drove approximately 11.0 km of rural road (about 20 min), 7.9 km of urban road (about 25 min), and 20.8 km of highway (about 20 min). The results suggested that the appropriate number of blinks during the last 60 seconds was 4 times, and the head movement interval was 35 seconds. The results from drowsy driving data will be presented in another paper - part 2.

Driving behavior Analysis to Verify the Criteria of a Driver Monitoring System in a Conditional Autonomous Vehicle - Part II - (부분 자율주행자동차의 운전자 모니터링 시스템 안전기준 검증을 위한 운전 행동 분석 -2부-)

  • Son, Joonwoo;Park, Myoungouk
    • Journal of Auto-vehicle Safety Association
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    • v.13 no.1
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    • pp.45-50
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    • 2021
  • This study aimed to verify the criteria of the driver monitoring systems proposed by UNECE ACSF informal working group and the ministry of land, infrastructure, and transport of South Korea using driving behavior data. In order to verify the criteria, we investigated the safety regulations of driver monitoring systems in a conditional autonomous vehicle and found that the driver monitoring measures were related to eye blinks times, head movements, and eye closed duration. Thus, we took two different experimental data including real-world driving and simulator-based drowsy driving behaviors in previous studies. The real-world driving data were used for analyzing blink times and head movement intervals, and the drowsiness data were used for eye closed duration. In the drowsy driving study, 10 drivers drove approximately 37 km of a monotonous highway (about 22 min) twice. The results suggested that the appropriate duration of eyes continuously closed was 4 seconds. The results from real-world driving data were presented in the other paper - part 1.

Development of Emission Monitoring System Using ITS (ITS를 이용한 대기오염 로니터링 시스템 개발)

  • Park, Jun-Hwan;Lee, Jun;Lee, Young-Ihn
    • Journal of Korean Society of Transportation
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    • v.22 no.7 s.78
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    • pp.61-67
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    • 2004
  • It is needed for one to design the better models estimating emission and then with the real time data, make the monitoring system simulating emission rate because of having built the basement of accepting real-time traffic information in ITS projects. The objective of the study is to develop the monitoring system visualizing air pollution to a certain place. It is based on the estimated emission from the patterns of individual vehicles and the changes of traffic flow. For constructing simulator, we loaded referring algorithm in actuality program and simulates the traffic flow movement in a microscopic viewpoint. The simulator is able to express not only the movement of each car but also to visualize processing the emission and diffusion of the air pollutant by computer program. Not only expresses the simulation process the angle of vision but it also cutting down environment expenses and improving the traffic impact assessment and the traffic impact assessment.

3D video simulation system using GPS (GPS를 이용한 3D 영상 구현 시뮬레이션 시스템)

  • Joo, Sang-Woong;Kang, Byeong-Jun;Shim, Kyou-Chul;Kim, Kyung-Hwan;Jung, Hoe-Kyung
    • Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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    • 2012.10a
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    • pp.891-893
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    • 2012
  • Currently, aircraft and automobile simulator for training provides a variety of training by making hypothetical situation on a simulator Installed on the ground Currently. And the instructor maximizes the effectiveness of the training by Monitoring training and instructing the required training. When trainees are boarding the aircraft or automobile. The Instructor in the ground is not able to monitoring aircraft, automobile. The assessment of the training is not easy after the end of the training Therefore, it is difficult to provide high quality of education to the students. In this paper, Simulation software is to develop the following. Collecting GPS and real-time information for aircraft, automobile ${\grave{a}}implementing$ 3D simulation. Implementing Current image of the aircraft or automobile in the screen by 3D Real-time monitoring of training situation at the control center utilizing for training saving 3D video files Analysis, evaluation on training After the end of the training.

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A Study About Grid Impose Method On Real-Time Simulator For Wind-Farm Management System (풍력발전단지 관리·분석 시스템의 Real-Time Simulator 도입을 위한 계통모델 연동방안 연구)

  • Jung, Seungmin;Yoo, Yeuntae;Kim, Hyun-Wook;Jang, Gilsoo
    • Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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    • v.29 no.7
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    • pp.28-37
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    • 2015
  • Owing to the variability of large-scaled wind power system, the development of wind farm management technologies and related compensation methods have been receiving attention. To provide an accurate and reliable output power, certain wind farm adopts a specified management system including a wind prediction model and grid expectation solutions for considering grid condition. Those technologies are focused on improving the reliability and stability issues of wind farms, which can affect not only nearby system devices but also a voltage condition of utility grid. Therefore, to adapt the develop management system, an expectation process about voltage condition of Point of Common Coupling should be integrated in operating system for responding system requirements in real-time basis. This paper introduce a grid imposing method for a real-time based wind farm management system. The expected power can be transferred to the power flow section and the required quantity about reactive power can be calculated through the proposed system. For the verification process, the gauss-seidel method is introduced in the Matlab/Simulink for analysing power flow condition. The entire simulation process was designed to interwork with PSCAD for verifying real power system condition.

A Study to Develop Optimal Injection System Using ISIS(the In-situ Soil Injection Simulator) (ISIS 시스템을 이용한 최적 그라우팅 시스템 개발 연구)

  • 천병식;김진춘;김경민;이민호;이정훈;김진수;박종근
    • Proceedings of the Korean Geotechical Society Conference
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    • 2002.03a
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    • pp.619-626
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    • 2002
  • In this study, a correlation among pressure, time and quantity of injection was organized from the laboratory tests, which were executed many times representing in-situ soil conditions carefully and then it would be applied to the in-situ soil injection simulator which will be developed for optimal injection into the ground. The sort of sample soils were both sand(A specimen) and silty sand(B specimen). Injection tests were gone into operation by compaction state, injection velocity and the depth individually. In the ground improved with permeation Infection, the relation among injection pressure of the same depth, the injected quantities and time were systematic by the depth. By defining the limit range of injection pressure and quantity about the variety of a linear equation obtained from lining each of their trend, the application of laboratory injection monitoring program and the data to evaluate its realization were produced. In the ground improved with root type injection, the relation between injection pressure and the injected quantities was irregular because fracture state occurred quickly.

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Development of 4MW Class High Voltage Inverter System (4MW급 고압 인버터 시스템 개발)

  • 박영민;한기준;최세경;정명길;이세현
    • The Transactions of the Korean Institute of Power Electronics
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    • v.6 no.5
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    • pp.432-437
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    • 2001
  • This paper describes a new developed 3.3KV/4MW class three-level Voltage Source Inverter(VSI), which is equipped with IIMS(Inverter Information Management System) based on the world wide web and with the Virtual operation simulator. The algorithm for motor control is the stator oriented Direct Torque Control(DTC), which works without speed sensor and gives the physically fastest dynamic response. The IIMS have the functions of operation monitoring and data managements. Virtual operation simulator can analyze and tune the system characteristics without main power. Now, this system is under the field test to verify the confidence.

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A Study on Modeling and Simulation of Wastewater Treatment Process Considering VOC Emissions (VOC 방출을 고려한 폐수처리공정의 모델링 및 모사에 관한 연구)

  • Seong, Kyoung Won;Chun, Sang Ki;Yi, Sung Chul
    • Journal of Environmental Impact Assessment
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    • v.8 no.2
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    • pp.83-93
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    • 1999
  • ASPEN PLUS, a steady-state simulator, was used in this study for predicting emissions of VOCs and tracing the fate of all compounds in biodegradation processes. Mathematical models for the processes such as volatilization, reaction and clarification were adopted from literatures. Unlike most previous simulations that various pollutants were considered as a single component, COD or BOD, four components of water, biomass, VOCs and COD were included in this simulation. Sensitivity analysis of several physical parameters on the performance of the WWTP was conducted. Model predictions of VOCs emissions agreed well with the plant data. The simulator could provide design conditions for a future WWTP as well as monitoring/control regimes to an existing WWTP.

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