전자공학회논문지CI (Journal of the Institute of Electronics Engineers of Korea CI)

대한전자공학회 (The Institute of Electronics and Information Engineers)
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QoS를 이용한 인터넷 원격제어의 임의 시간지연 해결 방법

A Solution for Random Time-dely in Teleoperation via Internet using QoS

  • 허경무 (檀國大學敎 電子컴퓨터學部) ;
  • 침현승 (檀國大學敎 電子컴퓨터學部)
  • Huh, Kyung-Moo (Dept. of Electronics & Computer Engineering dankook University) ;
  • Shim, Hyun-Seung (Dept. of Electronics & Computer Engineering dankook University)
  • 발행 : 2002.07.01
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초록

본 논문에서는 인터넷을 이용한 원격제어시 문제점으로 지적되는 동적으로 불규칙하게 변화하는 예측불가능한 시간지연을 해결할수 있는 방법을 제시하고, 이를 적용한 실험결과를 보인다. 즉 원격제어 대상 시스템에 요구되는 일정한 대역폭을 확보하여 불규칙적으로 변화하는 시간지연을 정적으로 예측가능하도록 고정시키고 실시간성을 확보함으로써, 인터넷을 이용한 원격제어시 시간지연 문제를 해결할 수 있음을 보인다. 또한 전송률을 일정하게 유지함으로써 원격제어시 지연시간을 설정한 시간내에 확실하게 처리할 수 있음을 보인다. 그리고 본 논문에서 제안한 방법과 기존의 TCP, UDP를 이용한 원격제어 방법을 각각 적용한 실험 결과를 통해 비교함으로써, 제안한 방법의 우수성을 보인다.

In this paper, we propose a solution for random time-delay in teleoperation via internet using QoS, and show the experimental results of our proposed method. By ensuring a constant bandwidth required for the specific telecontrolled system, we change irregular random time-delay to a predictable time-delay, and so we can control the system with the time-delay shorter than the specified time-delay. Through the experimental results, we show the effectiveness of our proposed method.

키워드

참고문헌

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