17ZK1200, Realtime Management of Renewable Energy System and Regional Energy Industry Advancement Project,
Yoo Hark
Abstract
본 논문에서는 산업용 사물인터넷 장치를 제어하고 모니터링하기 위한 차세대 네트워크 기술로써 최근 활발히연구되고 있는 TSN(Time-Sensitive Network)의 IEEE 802.1AS 고정밀 시각동기 기능을 지원하는 MAC 설계 및구현에 관한 내용을 기술한다. 본 논문에서 기술하는 IEEE 802.1AS 시각동기 지원 MAC은 ALTERA SoC FPGA기반으로 이더넷 MAC과 Time-of-Day 모듈로 구성되며, SoC FPGA에 내장된 ARM 프로세서에서 해당하드웨어 블록을 제어할 수 있도록 설계하였다. 또한, Linux OS(ubuntu 16.04 LTS)에서 IEEE 802.1AS 시각동기지원 MAC 디바이스 드라이버 소프트웨어를 구현하였으며, PTP(Precision Time Protocol)에 대한 오픈소스 프로그램인 LinuxPTP를 통해 시각동기 정확도 성능을 측정하였다. 본 논문에서 구현한 MAC의 시각동기 성능은 최대1982ns, 최소 ?2991ns 시각오차 범위에서 rms 기준 125ns으로 측정되었다.
KSP Keywords
IEEE 802.1AS, Linux Os, Time-sensitive network, precision time protocol
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