DOI QR코드

DOI QR Code

XML-Based Network Services for Real-Time Process Data

실시간 공정 데이터를 위한 XML 기반 네트워크 서비스

  • 추영열 (동명대학교 컴퓨터공학과) ;
  • 송명규 (동명대학교 컴퓨터공학과)
  • Published : 2008.02.01

Abstract

This paper describes a message model based on XML (eXtensible Markup Language) to present real-time data from sensors and instruments at manufacturing processes for web service. HTML (Hyper Text Markup Language) is inadequate for describing real-time data from process control plants while it is suitable for displaying non-real-time multimedia data on web. For XML-based web service of process data, XML format for the data presentation was proposed after investigating data of various instruments at steel-making plants. Considering transmission delay inevitably caused from increased message length and processing delay from transformation of raw data into defined format, which was critical for operation of a real-time system, its performance was evaluated by simulation. In the simulation, we assumed two implementation models for conducting the transformation function. In one model, transformation was done at an SCC (Supervisory Control Computer) after receiving real-time data from instruments. In the other model, transformation had been carried out at instruments before the data were transmitted to the SCC. Various tests had been conducted under different conditions of offered loads and data lengths and their results were described.

References

  1. 홍승호, 손병관, 'Foundation fieldbus에서 긴급데이터의 지연시간 성능해석 및 실험적 검증,' 제어.자동화.시스템공학 논문지, 제9권 제7호, pp.569-576, 2003. 7
  2. S. G. Park, "Fie1dbus in IEC61158 standard," Proceedings on the 15th C1SL Winter Workshop, Kushu, Japan, 2002. 2
  3. 이강찬, 손홍, 박기식, 'XML 표준화 동향,' 정보과학회지 제19권 제1호, pp. 6-14, 2001. 1
  4. 주홍택, 윤정혁, 홍원기, 'XML 기반 네트워크 관리를 위한 SNMP-XML 변환기 및 게이트웨이,' KNOM Reveiw, vol. 5, no. 1, pp. 1-17, June 2002
  5. 최미정, 오정민, 홍원기, '네트워크 관리를 위한 XML 기반 관리 에이전트,' KNOM Reveiw, vol. 6, no. 1, pp. 59-68, June 2003
  6. T. Klie, F. StrauB, 'Integrating SNMP agents with XML-based management systems,' IEEE Communications Magazine, pp. 76-83, July 2004
  7. 이민경, 정재헌, 전종훈, 유수영, 김보영, 최진욱, 'The LEX system : HL7을 사용하는 전자의 무기록의 효율적인 교환과 공유를 위한 XML기반 통합의료환경의 구축,' 정보처리학회논문지 D 제9-D권 제5호, pp. 769-778, 2002. 10
  8. J. McGilvreay, "The ethemet decision" ISA Industrial Computing Online, http://www.sixnetio.com/htm1_files/web _articles/The_Ethemet_Decision.htm, June 2001
  9. 임종선, 주경수, 'TCP/IP 기반의 XML 메시징 시스템 설계 및 구현,' 멀티미디어학회 논문지 제6권 제3호, pp. 481-487, 2003. 6
  10. 문용선, 이명복, 정철호, '필드기기 통합구성을 위한 XML 적용에 관한 연구,' Journal of Control, Automation and Systems Engineering vol. 11, no. 8, pp. 733-739, August 2005 https://doi.org/10.5302/J.ICROS.2005.11.8.733