Implementation of Real-Time Thermal Environment for Virtual Reality Using Gain Scheduling and Cascade Control

게인 스케쥴링과 캐스케이드 제어에 의한 가상현실용 열환경의 실시간 구현

  • Sin, Yeong-Gi ;
  • Jang, Yeong-Su (Heat Flowing Control Research Center, Korea Institute of Science and Technology) ;
  • Kim, Yeong-Il (Heat Flowing Control Research Center, Korea Institute of Science and Technology)
  • 신영기 (세종대학교 기계항공공학부) ;
  • 장영수 (한국과학기술연구원 열유동 제어연구센터) ;
  • 김영일 (한국과학기술연구원 열유동 제어연구센터)
  • Published : 2001.07.01

Abstract

A real-time HVAC system is proposed which implements real-time control of thermal environment for virtual reality. It consists of a pair of hot and cold loops that serve as thermal reservoirs, and a mixing box to mix hot and cold air streams flowing if from loops. Their flow rates are controlled in real-time to meet a set temperature and flow rate. A cascade control algorithm along with gain scheduling is applied to the system and test results shows that the closed-loop response approached set values within 3 to 4 seconds.

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