基于Camera Link的视频图像信号源设计  

Design of video image excitation source based on Camera Link

作　　者：马银鸿 范正吉 李张倩 洪应平[1,2] 张会新[1,2] MA Yinhong;FAN Zhengji;LI Zhangqian;HONG Yingping;ZHANG Huixin(State Key Laboratory of Electronic Testing Technology,North University of China,Taiyuan 030051,China;Key Laboratory of Instrument Science and Dynamic Testing,Ministry of Education,Taiyuan 030051,China)

机构地区：[1]中北大学电子测试技术国家重点实验室,山西太原030051 [2]仪器科学与动态测试教育部重点实验室,山西太原030051

出　　处：《电子设计工程》2023年第12期23-27,共5页Electronic Design Engineering

摘　　要：针对给某智能图像信息处理终端提供可靠的图像信号源,设计了一种基于Camera Link接口的视频图像信号源。该文对图像信号源进行了总体方案设计、硬件电路设计以及帧同步算法设计并进行了验证。该图像信号源通过PCIe总线连接到上位机,并利用DDR3高速缓存图像。通过Camera Link接口与智能图像信息处理终端之间进行通信。结果表明,该设备可用于生产过程中智能图像信息处理终端的相关试验,完成了测试图像的输出,输出图像有效像素为2 560×720,采集到的画面40帧/秒,带宽可达1.9 Gbps,具有一定的工程应用价值。Aiming at providing a reliable image signal source for an intelligent image information proc⁃essing terminal,a video image signal source based on Camera Link interface is designed.In this paper,the overall scheme design,hardware circuit design and frame synchronization algorithm of image signal source are designed and verified.The image cache is connected to the host computer through PCIe bus,and uses DDR3 to cache the image.Communicate with the intelligent image information processing terminal through the Camera Link interface.The results show that the equipment can be used in the relevant tests of intelligent image information processing terminal in the production process,and the output of the test image is completed.The effective pixels of the output image are 2560×720,the collected picture is 40 frames/s,and the bandwidth can reach 1.9 Gbps.It has certain engineering application value.

关 键 词：Camera Link PCIe总线 图像信号源 图像传输 

分 类 号：TN919.82[电子电信—通信与信息系统]