• Title/Summary/Keyword: 남문

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Electro-magnetic measuring system for head rotations (전자기학적 방법을 이용한 머리운동 측정 시스템)

  • 남문현;김정현
    • 제어로봇시스템학회:학술대회논문집
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    • 1986.10a
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    • pp.652-657
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    • 1986
  • 본 연구는 시야나 머리운동을 구속하지 않고 수평 및 수직 머리운동을 측정하여 처리하는 방법에 관한 것이다. 이를 위해 Helmholtz 코일을 적절히 구성하여 균일 자계를 발생시키고 탐지 코일을 이용하여 머리운동의 동적 특성을 검출하고, 검출된 신호는 신호처리 장치를 구성하여 처리하는 방법을 개발하고 다른 연구결과와 비료 고찰하였다.

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Study on the Southern Gate(南門) And Front Road(前路) of Korean Ancient Buddhist Temples (한국 고대 사찰 남문(南門)과 전로(前路) 연구)

  • Seo, Hyowon;Jang, Jiyeong
    • Journal of the Architectural Institute of Korea Planning & Design
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    • v.35 no.2
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    • pp.73-82
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    • 2019
  • The purpose of this study was to analyze the area of the southern gate in ancient temples. As the southern gate played a role of the front gate, the national or royal ceremonies had been held around the southern gates. The ancient southern gate of temples has had the place for the huge ceremonies such as a royal parade and an inspection of troops. Moreover, this place was recorded in the 'Samkooksagi(三國史記)' as Jeon-Ro(前路). The Southern gate and the Jeon-Ro had been planned together in the front area of the ancient temples, and the gate had been designed to look down the Jeon-Ro. These findings can be verified through the result of a recent excavation at a site of Hwangnyongsa temple in Gyeongju. This research confirmed that the huge ceremonies had been held at the Jeon-Ro including the area of southern gates. Furthermore, a Hwangnyongsa temple is regarded as a concrete case of verifying the composition of the area of Southern gate.

Speed control of AC Servo motor using neural network (뉴럴네트웤을 이용한 AC 서보 전동기의 속도제어)

  • Ban, Gi-Jong;Yun, Gwang-Ho;Choe, Seong-Dae;Nam, Moon-Hyon;Kim, Lark-Kyo
    • Proceedings of the KIEE Conference
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    • 2005.07d
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    • pp.2747-2749
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    • 2005
  • This paper presents an intelligent control system for an ac servo motor dirve to track periodic commands using a neural network. AC servo motor drive system is rather similar to a linear system. However, the uncertainties, such as machanical parametric variation, external disturbance, uncertainty due to nonideal in transient state. therefore an intelligent control system that isan on-line trained neural network controller with adaptive learning rates.

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Obstacle Avoidance Technique of the Autonomous Mobile Robot using Potential Function (포텐셜 함수를 이용한 자율주행 로봇의 장애물 회피에 관한 연구)

  • Nam, Mun-Ho;Kim, Min-Soo;Chung, Chan-Soo
    • Proceedings of the KIEE Conference
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    • 2005.05a
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    • pp.266-268
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    • 2005
  • Recently, the ability of sensing obstacles by oneself and creating suitable moving path in mobile robots are required to provide various kinds automation services. Therefore, in this paper, we studied the avoidance behavior of mobile robots from dynamic obstacles using potential function that minimizes distance and time. We examined the performance of the proposed algorithm by comparing the method of based on the geometrical experience in simulations.

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Adaptive Fuzzy Control for a DC Mmotor Using Weight Tuning Algorithm (가중치 조정 알고리즘을 이용한 직류 전동기의 적응 퍼지제어)

  • 손재현;지성현;전병태;임종광;남문현
    • 제어로봇시스템학회:학술대회논문집
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    • 1993.10a
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    • pp.360-363
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    • 1993
  • Fuzzy Logic Control immitating human decision making process is a novel control strategy based on expert's experience and knowledge and many process designers are developing its applications. But it is difficult to obtain a set of rules from human operator. And there is a limitation on adjusting to environmental changes. In this paper, we proposed adaptive fuzzy algorithm to overcome these difficulties using weights added to the rules. To verify the validity of this control strategy, we have implemented this algorithm for a DC servo motor with PD-type fuzzy controller.

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Position control of DC Motor using Variable Structure (가변구조를 이용한 직류전동기의 위치제어)

  • Li, Sun-Jong;Nam, Moon-Hyon;Kim, Lark-Kyo
    • Proceedings of the KIEE Conference
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    • 1989.11a
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    • pp.337-341
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    • 1989
  • This theory has fast response and low overshoot by transforming its structure and this system may have new character which did not appear in this system. The VSS system transform its structure by switching logic. Then, the state trajectory is to sliding along the switching line to the phase-plane orgin. The phase trajectory is known as the sliding mode of this controller. This paper performed position control in the theory and analysised the change in variable loads.

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