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提出一种多相机的高速图像传输方法,以克服目前采用LVDS方式进行长距离图像传输技术存在的所需线缆数量大、同时需要进行数据中继、系统的复杂度高的缺陷。系统采用FPGA为主控制器,将接收到的高速相机发出的LVDS格式图像数据转换成TTL信号,并分别输入到指定的存储区中。将相应存储区中的图像数据进行打包处理,送入RocketI O中转换为高速串行数据后,利用光纤进行远距离传输。实验表明,该方法在1.6 Gbps的传输速率下,传输数据量为32 Gbit时,误码数为零,且系统设计简单、性能优良,具有较强的可扩展性。
A multi-camera high-speed image transmission method is proposed to overcome the shortcomings of large number of cables required for long-distance image transmission using the LVDS method at the same time requiring data relay and high system complexity. The system adopts FPGA as the main controller, converts the received LVDS format image data from high-speed camera into TTL signals, and inputs them into the designated storage area respectively. The corresponding storage area of the image data package processing, into the RocketI O converted to high-speed serial data, the use of optical fiber for long-distance transmission. Experimental results show that the proposed method achieves a transmission rate of 1.6 Gbps and a transmission error of 32 Gbits / s when the data is transmitted. The error code is zero and the system design is simple with excellent performance and scalability.