Journal of the Korean Society of Safety (한국안전학회지)

The Korean Society of Safety (한국안전학회)
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Development of Protocol Analyzer Suited for Maintenance of LonWorks Netwo가 for Safety Management of Underground Facilities

지하시설의 안전관리를 위한 LonWorks 네트워크의 유지보수에 적합한 프로토콜 분석기의 개발

  • Kim, Hyung-Ki (Department of Elec. & Computer Engineering, University of Seoul) ;
  • Choi, Gi-Sang (Department of Elec. & Computer Engineering, University of Seoul) ;
  • Choi, Gi-Heung (Department of Mechanical Systems Engineering, Hansung University)
  • 김형기 (서울시립대학교 전자전기컴퓨터공학부) ;
  • 최기상 (서울시립대학교 전자전기컴퓨터공학부) ;
  • 최기흥 (한성대학교 기계시스템공학과)
  • Received : 2010.04.30
  • Accepted : 2010.12.10
  • Published : 2010.12.31
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Abstract

A compact ANSI/EIA 709.1 protocol analyzer system suited for maintenance of LonWorks network for safety management of underground facilities was developed and tested. The hardware is based on the TMS320LF2406A embedded system, and the software was designed using Visual C++6.0 under Windows XP environment. Connected to the LonWorks network the developed protocol analyzer decodes the raw packets and pass them to the master PC through USB port. Then on the PC the packets are processed and analyzed in various aspects and the key features that are essential to the maintenance of LonWorks network installed at underground facilities are displayed in a user-friendly format. Performance of the developed protocol analyzer was evaluated through a series of experiments, by measuring the speed of packet analysis and the error rate. The protocol analyzer proved to work reliably even under the increased bandwidth. However, more comprehensive tests under various underground environmental conditions are desired.

지하시설의 안전관리를 위하여 설치된 LonWorks 네트워크의 유지보수에 적합한 작은 크기의 ANSI/EIA 709.1 프로토콜 분석기를 개발하고 테스트하였다. 하드웨어는 TMS320LF2406A 임베디드 시스템을 기반으로 하였고, 소프트웨어는 Windows XP 환경의 Visual C++6.0을 이용하여 설계하였다. 개발된 프로토콜 분석기는 LonWorks 네트워크에 연결되어 들어오는 패킷을 디코딩하고, USB 포트를 통하여 마스터 PC에 전달하도록 설계하였다. 그리고 PC에서 패킷이 처리되고, 여러 방법으로 분석되어 지하시설에 설치된 LonWorks 네트워크의 유지보수에 필수적인 정보를 담고 있는 중요변수가 관리자에게 편리한 형태로 화면에 나타나도록 하였다. 프로토콜 분석 성능은 일련의 실험을 통하여 패킷분석의 속도와 에러율을 측정함으로써 평가되었다. 개발된 프로토콜 분석기는 밴드폭 이용이 크게 증가하는 경우에도 안정적으로 동작하였다. 그러나 다양한 지하 환경조건 하에서 좀 더 종합적인 테스트도 필요하다고 생각된다.

Keywords

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