Study on the Effect of the Wireless Internet Within the Platform Inside a Subway Station on the ZigBee Wireless Sensor Network

지하철역사 내 승강장의 무선 인터넷이 ZigBee 무선 센서 네트워크에 미치는 영향에 대한 연구

  • 안태기 (한국철도기술연구원. 도시철도표준화연구단) ;
  • 신정렬 (한국철도기술연구원. 도시철도표준화연구단) ;
  • 김갑영 ((주)휴텍이일, 기술연구소 개발3팀) ;
  • 양세현 ((주)휴텍이일, 기술연구소 개발3팀) ;
  • 심보석 (서울메트로. 통신전자처)
  • Published : 2011.10.20

Abstract

With increasing use of wireless mobile devices like smartphone and tablet PC, telecommunication companies have been providing the internet service by installing a multitude of access points (AP) in subway stations. Most of these APs use frequency of 2.4 GHz band range and the three telecom providers (SKT, KT, LGT) are using the limited channels within this range without any regulations. The channels within 2.4GHz band are already saturated as the companies are setting up wireless AP even within the subway trains for better service. This can affect other 2.4GHz wireless devices used for other purposes with channel interference, etc. This study has tested and analyzed the effects of the wireless APs installed within the subway stations and trains for the internet service on ZigBee-based sensor network for the intelligent surveillance system of urban transit, which is currently being developed and installed.

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