摘要
在大型光电测量设备中,高速相机以其优良的时间分辨率得到了广泛应用,因此存储高速数字视频并事后处理有着重要意义;高速相机具有庞大的数据带宽,因此通过多个嵌入式存储子系统并行工作记录图像数据,是一种有效的解决方案;利用FPGA和嵌入式处理器以及外围芯片构成嵌入式存储子系统,FPGA采集视频数据和相关参数,合成一定数据帧格式,在嵌入式处理器的控制下存储到大容量存储体中;上位机通过以太网接口访问磁盘文件,软件合成和还原出原图像帧,再进行处理和分析;实验表明,该系统可以实现对400MB/s数据带宽的高速相机的长时间稳定可靠记录。
In the large photoelectric measuring equipment, high--speed camera for its excellent time resolution has been widely used, so the storage of high speed digital video and post processing has important significance. High--speed camera with huge data bandwidth, so the storage image data by several embedded storage system in parallel, is a kind of effective solution. Embedded storage subsystem based on FP- GA and embedded processor and peripheral chip, FPGA capture videp data and related parameters, and synthesis of certain data frame for- mat, under the control of embedded processor, store to the large capacity storage medium. Computer access disk files through the Ethernet interface, software synthesis and restore the original image frame, and then processing and analysis. Experiments show that the system can realize stable storage for high speed camera with 400 MB/s data bandwidth long time.
出处
《计算机测量与控制》
北大核心
2013年第9期2576-2578,共3页
Computer Measurement &Control
