针对高清视频信号的数据量大,所需的传输带宽高的问题,设计了嵌入式千兆网高清视频传输系统.该系统选用Altera公司Cyclone Ⅱ系列的FPGA芯片为主控制器,完成数据的采集、处理和传输控制.系统采集端选用CameraLink接口,其数据传输速率最高可达1 Gbit/s,可为高清相机提供简单、灵活的连接.数据传输方式上采用千兆以太网技术,使视频信号不经压缩即可高速远程传输.实验采用分辨率为1 392列×1 040行×8位,帧频为16 Hz的紫外相机,结果表明,该系统每秒最高可传输52帧图像数据,数据流速度达到607.8 Mbit/s,且成本低、体积小、功耗低、性能稳定,满足了工程需要.
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