The Journal of Korean Institute of Communications and Information Sciences (한국통신학회논문지)

The Korean Institute of Commucations and Information Sciences (한국통신학회)
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Design of a Multi-Protocol Gateway System Based on Low Power Wireless Communications

저전력 무선통신 기반 다중 프로토콜 게이트웨이 시스템 설계

  • Received : 2015.07.19
  • Accepted : 2015.09.30
  • Published : 2015.10.31
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Abstract

In this paper we propose a multi-protocol gateway system based on low power wireless communications. The proposed multi-protocol gateway system was designed to allow real-time monitoring and control of the on-site situation through wired and wireless networks by gathering information for streetlight power control and environmental monitoring. The sensing data using multi-sensors with composite processing that selectively used wired or wireless communication (e.g., CDMA, Ethernet (TCP/IP), GPS, etc.) were designed to act as intermediaries that transmitted to the main server through ZigBee. Inaddition, they were designed by separating a CPU board and baseboard to ensure low maintenance cost and ease of hardware replacement. The proposed multi-protocol gateway system's power, impact, continuous operation stability, and immunity test results obtained a normal operation success rate of over 95% and normal continuous operation results. Moreover, in the voltage drop test, instantaneous immunity test, and conductive RF electromagnetic field immunity test, it obtained an average rating result of "A".

본 논문에서는 저전력 무선통신 기반 다중 프로토콜 게이트웨이 시스템 설계를 제안한다. 제안 된 멀티 프로토콜 게이트웨이 시스템은 가로등 전력 제어 및 환경 모니터링을 위한 정보를 수집하여 무선 네트워크와 유선 네트워크를 통해 현장 상황을 실시간으로 모니터링 및 제어 할 수 있도록 설계하였다. 코드분할 다중접속 및 이더넷, 위성 항법장치, 저전력 무선통신 등의 유선 또는 무선통신을 선택적으로 사용한 복합처리와 함께 다중 센서를 이용하여 수집 된 데이터를 저전력 무선통신을 통해 서버로 전송하는 중개 역할을 하도록 설계하였다. 그리고 유지보수 비용 및 하드웨어 교체 용이성을 위해 CPU 및 베이스 보드로 분리하여 설계하였다. 본 논문에서 제안된 다중 프로토콜 게이트웨이 시스템의 전원, 충격, 연속동작 신뢰성 검증결과, 95% 이상의 정상동작 성공률 및 정상적인 연속동작 결과를 얻을 수 있었다. 그리고 전압 강하 및 순간 내성시험, 전도성 RF 전자기장 내성시험에서 평균 A등급의 평가결과를 얻을 수 있었다.

Keywords

References

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