• 제목/요약/키워드: Realtime System

검색결과 914건 처리시간 0.029초

Matlab/Simulink기반 유도전동기 벡터제어 시스템의 실시간 시뮬레이션 (Matlab/Simulink based Realtime Simulation of Induction Motor Drives)

  • 이학주;권성철;양승권;오성업;성세진
    • 전력전자학회:학술대회논문집
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    • 전력전자학회 2004년도 전력전자학술대회 논문집(1)
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    • pp.19-22
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    • 2004
  • In this paper, we present a way that can implement the vector control Algorithm of induction motor and PWM signal generation on the basis of Matlab Simulink environment. The overall system model is designed by Simulink toolbox for vector control of induction motor, and then implement experiment with the DS1103 board of dSPACE. Although we are not coding the system, it is capable of doing simulation and experiment simultaneously. That is why Matlab and dSPACE board compiler can generate the '*.c' and '*.obj' files on the designed system automatically. After considering about hardware structure and driving system in Ds1103 board we verify the availability of Proposed method through in a comparison/analysis between simulation and experiment.

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히스토그램을 이용한 효율적인 차선검출 (Efficient Lane Detection Using Histogram Based Segmentation)

  • 남기환;배철수
    • 한국정보통신학회논문지
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    • 제7권5호
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    • pp.1062-1067
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    • 2003
  • 본 논문에서는 히스토그램에 기반한 영상분할과 결정트리구조를 이용하여 효율적으로 도로의 차선을 검출하는 알고리즘을 제안하였다. 제안한 시스템은 먼저 차선을 감지하기 위한 방법으로 그레이 레벨을 이용한 히스토그램의 특성을 사용하였고, 감지된 차선은 결정트리에 의해 보다 명확히 분류되어, 도로와 차선과의 관계를 분석할 수 있었다. 또한 시스템은 약 30Hz의 실시간 속도로 작동하면서 차선감지는 물론, 차선의 추적이나 장애물 감지의 효과도 얻을 수 있었다.

A Consideration on Load Disturbance Characteristics of Realtime Adaptive Learning Controller based on an Evolutionary algorithms - Application to an Electro Hydraulic Servo System

  • Sung-Ouk;Lee, Jin-Kul
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2001년도 ICCAS
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    • pp.176.3-176
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    • 2001
  • Hydraulic servo system has the characteristic of high power in itself, as combining its characteristics with excellent electro equipment that comes from the development of electronics, electro-hydraulic servo system is widely used in industry that are requested high precision and power Electro-hydraulic servo system is characteristic of very strong non-linearity in itself and it is mainly applied the field of the inner or outer fluctuating load or disturbance in industry. Evolutionary computation based on the natural evolutionary process may solve many engineering problems. Algorithms can represent the natural selection in crossovers, mutations, production of the offspring, selection, etc. Nature has already shown is the superiority through ...

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RCP 시스템에서 사용가능한 DMC (Dynamic Matrix Control) 블록의 개발과 응용 (Development of a DMC Block for Use with an RCP System and its Application)

  • 이영삼;유광명
    • 제어로봇시스템학회논문지
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    • 제21권9호
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    • pp.827-835
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    • 2015
  • In this paper, we present the implementation method of Dynamic Matrix Control(DMC) block for use with a Rapid Control Prototyping(RCP) system and consider the speed control of a DC motor using the developed DMC block. Firstly, we briefly introduce a lab-built RCP system. Secondly, we present a method for implementing a DMC block using C-language, which enables the DMC algorithm to be represented in a library block that can be used in a Simulink environment. Finally, we use the developed DMC block for the speed control of a DC motor, through which we show that the DMC-based control system can be easily implemented and applied to the real-time control of systems with relatively fast dynamics.

DSP를 이용한 능동소음 제어시스템의 개발 (Development of Active Noise Control System using DSP)

  • Kim, H.S.;Shin, J.;Oh, J.E.
    • 한국정밀공학회지
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    • 제11권1호
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    • pp.108-113
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    • 1994
  • Active noise control technique has superior performance in low frequency ranges(50 .approx. 400Hz) to the conventional passive noise control technique. For the feasibility of active noise control, it is required to develop a controller which can implement control algorithm on real-time. In this study, therefore, real-time controller is developed using TMS320c25, high speed digital processor. Unlike conventional DSP board of complete ADD ON type, it is possible for the developed controller to interface with the other computer system easily by series communication for the convenience of program development. Furthermore it is designes to be separated readily as a control device. Active noise control of duct system is implemented ti evaluate a performance of developed device. Active noise control of duct system is implemented to evaluate a performance of developed controller using filtered-x LMS algorithm.

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해양환경 모니터링 센서 시스템 개발에 관한 연구 (Study on Development of Marine Environment Monitoring Sensor System)

  • 윤영
    • 한국항해항만학회:학술대회논문집
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    • 한국항해항만학회 2019년도 추계학술대회
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    • pp.211-212
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    • 2019
  • 후쿠시마 원전사고 이후, 오염수 방출등에 의한 해양오염문제가 크게 대두되고 있다. 본 논문은 해양환경 모니터링 센서 시스템 개발에 관한 연구에 관한 내용이다. 본 논문에서는 해양환경 모니터링을 위해서 실시간의 해상에서의 여러 가지 해양 오염원을 계측하고 이를 실시간으로 분석하여 관측센터로 전송하는 센서 및 통신 시스템에 관한 연구를 발표하고자 한다.

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TFT-LCD 채널검사 자동화를 위한 원격 모니터링 시스템 개발 (Development of n Remote Monitoring System for TFT-LCD Panel Test Automation)

  • 박형근;이승대;김선엽
    • 한국산학기술학회논문지
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    • 제8권3호
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    • pp.483-487
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    • 2007
  • 본 연구에서는 TFT-LCD Panel 생산한 후 Panel을 검사하는 공정에서 사용되는 Ti-Con 보드의 동작 상태를 실시간으로 모니터링하고 원격지에 있는 엔지니어에게 TCP/IP를 이용하여 고장 유무를 판별할 수 있는 데이터를 전송함으로써 신속한 대처가 가능할 뿐만 아니라 다중 프로세스가 가능하도록 제어할 수 있는 시스템을 개발하였다.

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모바일 환경에서 Haar-Like Features와 PCA를 이용한 실시간 얼굴 인증 시스템 (Implementation of Realtime Face Recognition System using Haar-Like Features and PCA in Mobile Environment)

  • 김정철;허범근;신나라;홍기천
    • 디지털산업정보학회논문지
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    • 제6권2호
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    • pp.199-207
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    • 2010
  • Recently, large amount of information in IDS(Intrusion Detection System) can be un manageable and also be mixed with false prediction error. In this paper, we propose a data mining methodology for IDS, which contains uncertainty based on training process and post-processing analysis additionally. Our system is trained to classify the existing attack for misuse detection, to detect the new attack pattern for anomaly detection, and to define border patter between attack and normal pattern. In experimental results show that our approach improve the performance against existing attacks and new attacks, from 0.62 to 0.84 about 35%.

DSP를 이용한 다축제어기 개발 및 로봇 제어 시스템에의 응용 (Development of Multi-Axis Controller using DSP and its use on a Robot Control System)

  • 이준수;유범재;오상록;조영조;이종원
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1996년도 하계학술대회 논문집 B
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    • pp.1225-1227
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    • 1996
  • In this paper, we delelop 4-axis motion controller using TMS320c30 DSP chip and build a 5-axis vertical articulated robot control system. The 4-aixs controller uses a DSP, a high-speed AID and a D/A converter to implement advanced robot control algorithms. The robot control system uses VME-bus and VxWorks realtime multi-tasking operating system. We use RCCL type to implement robot languages.

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유도전동기 베어링의 원거리 실시간 결함진단시스템 개발 (Web-based Real Time Failure Diagnosis System Development for Induction Motor Bearing)

  • 권오헌;이승현
    • 한국안전학회지
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    • 제20권3호
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    • pp.1-8
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    • 2005
  • The industrial induction motor is widely used in the rotating electrical machine for the transmission of power. It is very reliable equipment, but it could lead to the loss of production and lift when failure occurs. Therefore, the failure data is acquired and analyzed by attaching an exclusive instrument to existing induction motor. However, these instruments could lead to side effects, increasing the production costs, because they are very expensive. The purpose of this study is the development of an induction motor bearing failure diagnosis system constructed using LabVIEW which can be supplied the kernelled function, process monitoring and current signature analysis. In addition, the availability and reasonability of the constructed system was examined for an induction motor with failure defects in outer raceway and ball bearing. From the results, it shows that failure diagnosis system constructed is useful for real-time monitoring with detection of bearing defects over the web.