基于FPGA的喷绘机高速光纤通信系统设计与实现

Design and implementation of inkjet printer high-speed optical fiber communication system based on FPGA

为解决喷绘机打印数据实时传输问题,将以现场可编程门阵列(FPGA)和串行解串器为基础的高速光纤通信技术应用到打印数据的通讯中。系统中FPGA用于实现通讯数据的存取、8B/10B编解码和CRC校验的功能;串行解串器实现了并/串和串/并转换及锁相功能;光收发一体模块实现了电光转换和光电转换。该光纤通信系统在喷绘机上进行了实际打印试验,应用结果表明系统在300 Mbps通信带宽下能够稳定传输,在120小时的连续测试过程中没有出现打图错误现象。实现了高可靠性、长距离、高速数据传输的功能。

In order to solve the problems of real-time data transmission during printing,a high-speed optical fiber communication technology based on field programmable gate array（FPGA） and serial deserializer was presented.FPGA was used to implement the communication data access,8B/10B encoder and decoder and CRC check.The serial deserializer was used to achieve parallel/serial and serial/parallel convertion and phase lock function.Optical transceiver module was used for electro-optical conversion and the photo-electric conversion.The optical fiber communication system was tested in the inkjet machine with 300 Mbps communications bandwidth to transmit the commuication data stablely and accurately during 120 hours of continuous working.The experient results show that the system can achieve the long distance and high speed data transimision.