• Title/Summary/Keyword: RFID Network System

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Method of RFID Network System Application for Improving of Construction Productivity in Construction Site (건설생산성 향상을 위한 건설현장 내 RFID 네트워크 시스템 적용 방안)

  • Kim, Shin-Gu;Lee, Choong-Hee;Lee, Sung-Hyung;Kim, Jae-Hyun
    • The Journal of Korean Institute of Communications and Information Sciences
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    • v.35 no.8B
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    • pp.1224-1231
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    • 2010
  • We study the RFID network system in a construction site, and study the connection method between the RFID network system and the integrated information system of construction material. Moreover, we developed a prototype of the construction site RFID server for the management of construction materials and performed the pilot application in a construction site. Through the pilot application, it was known that the proposed RFID network system can be more usefully applied in the construction sites. The results of the pilot application show that the RFID network system is faster, more accurate, and more reliable than the existing system of information management and achieves improvement in construction productivity.

High Speed Collision Avoidance Algorithm for Active RFID Network System (능동형 RFID 네트워크 시스템 고속 충돌방지 알고리즘)

  • Kim, Jae-Jeong;Lee, Hak-Jae;Kim, Yoeng-Min
    • The Journal of the Korea institute of electronic communication sciences
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    • v.11 no.6
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    • pp.581-590
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    • 2016
  • This paper proposes an efficient collision avoidance algorithm that a group of RFID readers manage each of their affiliated active RFID tags in a space by establishing wireless network and avoids communication collision between RFID reader to reader and RFID tag to tag, and reader to tag. RF readers operate as wireless network nodes, create synchronous links each other, and can exchange messages. Active tags also are operated communicating each reader devices synchronously, and competing slot position between tags algorithm using unique tag identification number is implemented. Each reader node operates their own reader function different time slot network communication period to prevent collision between readers communication.