• Title/Summary/Keyword: Instrumentation and Control

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Control of the flexible system under irregular disturbance by using of 『random gain』

  • Cho, Yun-Hyun;Yang, Jae-Hyuk;Kim, Dae-Jung;Park, Sang-Tae;Chung, Jae-Wook;Hoon Heo
    • 제어로봇시스템학회:학술대회논문집
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    • 1998.10a
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    • pp.435-439
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    • 1998
  • A control strategy for flexible structure under irregular disturbance by using of$\boxDr$random gain$\boxUl$is developed and implemented. System equation is transformed to stochastic domain by F-P-K approach from physical domain. A controller is designed in the stochastic domain, accordingly system is controlled by$\boxDr$random gain$\boxUl$in time domain. In the paper, a new control technique is successfully employed for flexible system under white noise, and the result is verified by Monte-Carlo simulation and compared with the performance via LQR controller.

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Automated Diagnosis of Disease in Medical Information Management System (의료용 정보처리시스템에서 질환해석)

  • Kim, Hie-Sik;Choi, Gi-Sang;Kim, Gyu-Sik;Choi, Jin-Uk;Park, Jong-Sung;Lee, Pyong-Won;Kim, Eul-Sik;SeoMun, Jun
    • Proceedings of the KOSOMBE Conference
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    • v.1997 no.11
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    • pp.193-196
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    • 1997
  • This paper proposes a new medical information management system to be used or small to medium sized clinics and hospitals. The system is designed to process, analyze and manage each patient's clinical record using database technique. The structure of the database was determined and implemented through careful and rigorous study of medical practices in Korea and, therefore, reflects the needs of information management in Korean medical community. Furthermore, a sophisticated inference engine that can deduce possible disease from the result of medical examination is added to the system to provide doctors with a guideline in medical diagnoses.

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Design of a Pedestal Part for the Marine Surveillance Night Vision System

  • Kim, Jung-Keun;Kim, Jong-Min;Park, Ki-Rang;Song, Se-Hun;Baek, Seung-Hun;Baek, Jong-Ok;Lee, Yun-Hyung;Hwang, Seung-Wook;Jin, Gang-Gyoo
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • 2006.10a
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    • pp.123-128
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    • 2006
  • This paper presents the design of a surveillance night vision system for marine ships. Both a hardware system and software modules for tracking control are developed. In order to control each control axis with compensation for ship motion, the two-degree of freedom(TDF) PID controller is designed and its parameters are tuned using a real-coded genetic algorithm(RCGA). Simulation demonstrates the effectiveness of the proposed system.

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Control of a Swing-up Inverted Pendulum by an Adaptive Neuro Fuzzy Inference System (적응 뉴로-퍼지 추론 시스템을 이용한 스윙-업 도립진자 제어)

  • Kim, Keun-Ki;Yu, Chang-Wan;Hong, Dae-Seung;Sin, Ja-Ho;Choe, Chang-Ho;Choe, Yong-Gil;Song, Yeong-Mok;Yim, Wha-Yeong
    • Proceedings of the KIEE Conference
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    • 2001.07d
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    • pp.2261-2263
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    • 2001
  • Fuzzy controller design consists of intuition, and any other information about how to control system, into a set of rules. These rules can then be applied to the system. It is very important to decide parameters of IF-THEN rules. Because fuzzy controller can make more adequate force to the plant by means of parameter optimization, which is accomplished by learning procedure. In this paper, we apply fuzzy controller designed to the Swing-UP Inverted pendulum.

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Characteristics of Ultrasonic Motor using Voltage Control and Phase Difference Control (초음파 모터의 전압 및 위상차 제어 특성)

  • Shin, Duk;Kim, Dong-Ok;Ko, Nak-Yong;Choi, Han-Soo;Kim, Young-Dong
    • Proceedings of the KIEE Conference
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    • 1996.07b
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    • pp.949-952
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    • 1996
  • The ultrasonic motor(USM) has good characteristics such as compact size, silent motion, low speed, high torque and high speed response. The USM is driven by 2-phase AC electricity. The control parameters of USM are voltage, phase difference, frequency of input power, etc. In this paper, we propose voltage difference control. And we designed USM controller to adjust voltage and phase using pLSI(programmable Large Scale Integration). Voltage difference control has many advantages that are lower current, lower power than phase difference control. Especially there is nearly zero ampere at the zero point of speed and torque. we can apply this voltage difference control to the compliance control of DD manipulator.

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On Design of the Decentralised Controller for a System with a Linear Symmetric Structure (선형 대칭 구성 시스템에 대한 분산 제어기 설계)

  • Lee, Se-In;Lee, Sang-Chuel;Cho, Do-Hyeon;Lee, Jong-Yong;Park, Jong-Woo;Lee, Sang-Hyo
    • Proceedings of the KIEE Conference
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    • 1999.07b
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    • pp.636-638
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    • 1999
  • 본 논문에서는 선형 대규모 시스템(large-scale systems)에 대하여 강건한 분산 제어기를 설계한다. 동일한 부시템(identical subsystems)들이 서로 대칭적으로 연결되어 있는 제어기 설계 시 불확실성은 부시스템 행렬과 연결 시스템 행렬의 유계된 매개 변수 변동을 모두 고려한다. 본 논문의 설계 절차는 대칭 연결 구조를 불확실성으로 포함시킨 하나의 인공적인 보조 시스템(artificial auxiliary systems)으로 번환 함으로써 대규모 시스템에 대한 분산 제어기 설계의 복잡성을 줄일 수 있음을 보이고 수치 예를 통해 이를 확인한다.

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