Architecture of Web-Based Real-Time Monitoring Systems

웹 기반 실시간 모니터링 시스템의 구조

  • Park, Hong-Seong (Dept.of Electrical Electronics Information Communication Engineering, Kangwon National University) ;
  • Jeong, Myeong-Sun (Dept.of Electrical Electronics Information Communication Engineering, Kangwon National University) ;
  • Kim, Bong-Sun (Dept.of Electrical Electronics Information Communication En)
  • 박홍성 (강원대학교 전기전자정보통신공학부) ;
  • 정명순 (강원대학교 전기전자정보통신공학부) ;
  • 김봉순 (강원대학교 전기전자정보통신공학부)
  • Published : 2001.07.01

Abstract

This paper proposes an improved architecture of web-based monitoring systems for monitor of processes in plants from the soft real-time point of view. The suggested model is designed to be able to guarantee the temporal and spatial consistency and transmit the monitoring data periodically via the intranet and the Internet. The model generates one thread for monitoring management, one DB thread, one common memory, and corresponding monitoring threads to clients. The monitoring thread is executed during the smaller time than the execution time of the process used in the conventional methods such as CGI and servlet method. The Java API for the server API, VRML, EAI(External Authoring Interface) and Java Applets for efficient dimensional WEB monitoring are used. The proposed model is implemented and tested for a FMS plant, Some examples show that the proposed model is useful one.

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