The Journal of the Korea institute of electronic communication sciences (한국전자통신학회논문지)

Korea Institute of Electronic Communication Science (한국전자통신학회)
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Design and Implementation of Standby Power Control Module based on Low Power Active RFID

저 전력 능동형 RFID 기반 대기 전력 제어 모듈 설계 및 구현

  • 장지웅 (전남대학교 대학원 전자컴퓨터공학과) ;
  • 이경훈 (전남대학교 대학원 전자컴퓨터공학과) ;
  • 김영민 (전남대학교 전자컴퓨터공학부)
  • Received : 2015.03.11
  • Accepted : 2015.04.23
  • Published : 2015.04.30
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Abstract

In this paper a method of design and Implementation of RFID based control system for reducing standby power consumption at the power outlet is described. The system is composed of a RF controlled power outlet having relay and an active RFID tag communicating with the RF reader module controlling the relay. When the tag carried by human approaches to the RF reader the reader recognizes the tag and switch off the relay based on the RSSI level measurement. A low power packet prediction algorithm has been used to decrease the DC power consumption at both the tag and the RF reader. The result of experiment shows that successful operation of the relay control has been obtained while low power operation of the tag and the reader is achieved using above algorithm. Also setting the distance between the reader and the tag by controlling transmission power of the tag and adjusting the duty cycle of the packet waiting time when the reader is in idle state allows us to reduce DC power consumption at both the reader and the tag.

본 논문에서는 능동형 RFID 방식의 태그와 리더로 구성된 대기 전력 제어 모듈을 설계하고 구현한다. 태그와 리더는 C8051 MCU와 CC2500으로 구성된 RF모듈을 내장하고 있으며 리더에는 대기 전력 제어 콘센트가 부착되어 있다. 리더는 송신 패킷 인식 여부에 따라 릴레이를 제어한 후 전원 공급을 차단하여 대기 전력으로 소비되는 전력을 감소시키며 저 전력 패킷 예측 알고리즘이 적용되어 태그와 리더의 전력 소모를 낮추었다. 실험 결과, 리더의 패킷 송, 수신 여부에 따라 대기 전력 제어 콘센트의 릴레이를 동작시켜 대기 전력을 제어할 수 있음을 확인하였다. 또한 RSSI값에 따라 태그와 리더 사이의 동작 거리 설정이 가능하며, 콘센트의 대기 시간 동안 리더에서 작동하는 수신 Duty Cycle을 설정함으로써 리더에 소모되는 전력을 절감할 수 있음을 확인하였다.

Keywords

References

  1. J. Kim, Yearbook of Energy Statistics 2011, Korea Energy Economy Institute : Minisry of Knowledge Economy Energy Economic Research Institute, 2011.
  2. Y. Kim, K. Im, and J. Lim, "Design and Implementation of Standby Power Control System based on the User's Location for Power Energy Saving," J. of Korean Institute of Information Scientists and Engineers : Information networking, vol. 39, no. 1D, 2012, pp. 378-380.
  3. Y. Han and D. Kim, "The Development of Android Application for Intelligent Concent," J. of the Korea Institute of Electronic Communication Sciences, vol. 8, no. 10, Oct. 2013, pp. 1515-1521. https://doi.org/10.13067/JKIECS.2013.8.10.1515
  4. W. Seo and M. Jun, "A Direction of Convergence and Security of Smart Grid and Information Communication Network," J. of the Korea Institute of Electronic Communication Sciences, vol. 5, no. 5, Oct. 2010, pp. 477-486.
  5. S. Kim, D. Kim, N. Kwak, and Y. Oh, "SPCS : Standby Power Control System to save energy," J. of the Korea Information Science Society, vol. 37, no. 2B, 2010, pp. 375-379.
  6. I. Kim and C. Kim, "Anti-Collision Algorithm for High-Speed Tags in Active RFID System," J. of the Korea Institute of Electronic Communication Sciences, vol. 8, no. 12. Dec. 2013, pp. 1891-1903. https://doi.org/10.13067/JKIECS.2013.8.11.1891
  7. Y. Yang, S. Kim, and P. Lee, "Improved Authentication and Data Protection Protocol of Passive RFID Security Tag and Reader," J. of Korea Institute Of Information Security And Cryptology, vol. 20, no. 1, 2010, pp. 85-94.
  8. K. Kang and K. Jung, "An Energy Aware Routing Protocol for Harvesting Environment in Wireless Sensor Networks," J. of Korean Institute of Information Scientists and Engineers, vol. 38, no. 3, 2011, pp. 207-217.
  9. G. Ferrari, P. Medagliani, S. Di Piazza, and M. Martalo, "Wireless Sensor Networks : Performance Analysis in Indoor Scenarios," EURASIP J. on Wireless Communications and Networking, vol. 21, no. 1, 2007, pp. 27-38.
  10. K. Lee, B. Lee, and Y. Kim, "Implementation of Active RFID System Using Prediction Packet Algorithm for Ultra Low Power Wireless Communication," J. of Korea Information and Communications Society, vol. 37, no. 8, Aug. 2012, pp. 661-668. https://doi.org/10.7840/kics.2012.37A.8.661
  11. S. Kim and Y. Kim, "A Study on Indoor Location Estimation using RSSI of Low Power Tag in RFID/USN Environments," J. of Korea Information Technology Research Institute, vol. 9, no. 10, Oct. 2011, pp. 67-74.