Proceedings of the KSR Conference (한국철도학회:학술대회논문집)

The Korean Society for Railway (한국철도학회)
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A study on Train Control System(CBTC) in 5GHz Band

5GHz 대역의 열차제어(CBTC) 적용에 대한 연구

  • 오광록 (서울도시철도공사 신신호연구단) ;
  • 박종헌 (서울도시철도공사 기술본부) ;
  • 김구식 (서울도시철도공사 신신호연구단) ;
  • 김건호 (서울도시철도공사 신신호연구단) ;
  • 김종복 (주)제이티) ;
  • 김기춘 (서울도시철도공사)
  • Published : 2011.05.26
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Abstract

Due to overuse of commercial network systems such as bluetooth and WI-FI, the problems of frequency interruption and line-crossing may arise. For this reason, wireless communication frequency ISM 2.4GHz, a recently adapted concept in Korea which is employeed by RF-CBTC system, is predicted not to have guarantee for outstanding and continuous performance. Therefore in this study, considering these problems, 5GHz capacity wireless Lans with international standard 802.11a/b/g applied were installed in the underground urban transit areas and it was proved that these lans exceeded the performance level of 2.4GHz with international standard 802.11b which is being introduced in the nation. In addition, it was verified through carrying out an application test that the communication condition was stable in a running train with high speed in the tunnel.

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