CAJ | 학술논문

针对目前工业现场和车载信息交换的特点，为了解决车内通信带宽和响应实时性的问题，设计实现千兆光纤网络的中心节点装置。采用 FPGA 设计中心节点的 MAC 层逻辑，实现基于无源光网络(Ethernet-based passive optical network，EPON)的千兆光纤交换协议层，采用GMII媒介无关接口链接节点的千兆物理层电路，千兆物理层芯片采用成熟的高速通信千兆位SERDES器件，并通过交换协议确保交换实时性达到微秒级。试验测试结果表明：该装置具有带宽大、交换实时性高、抗电磁干扰能力强和成本低等特点，有很好的实用价值。
침대목전공업현장화차재신식교환적특점，위료해결차내통신대관화향응실시성적문제，설계실현천조광섬망락적중심절점장치。채용 FPGA 설계중심절점적 MAC 층라집，실현기우무원광망락(Ethernet-based passive optical network，EPON)적천조광섬교환협의층，채용GMII매개무관접구련접절점적천조물리층전로，천조물리층심편채용성숙적고속통신천조위SERDES기건，병통과교환협의학보교환실시성체도미초급。시험측시결과표명：해장치구유대관대、교환실시성고、항전자간우능력강화성본저등특점，유흔호적실용개치。
According to industry and vehicle information communications features, this paper design and realize Gigabit optical network central node to solve problem of vehicle communication bandwidth and real-time response. Use MAC layer logic of FPGA design central node, realize Gigabit vehicle exchange protocol layer of Ethernet-based passive optical network (EPON), use GMII interface to connect the Gigabit physical layer circuit. The Gigabit physical layer core uses high speed communication Gigabit SERDES. Then use exchange protocol to ensure the microsecond real-time exchange. The test data shows that the equipment is practical with features of wide bandwidth, high real-time exchange rate, high anti-electromagnetic disturbance ability and low cost.