针对目前靶场光学测量设备中大量超高速高像素值数字相机, 设计了一种基于64位操作系统的高速数字视频存储系统。硬件平台采用高性能PC机并搭载大容量内存, 软件先将数字图像和相应的附加信息全部存入内存中, 待停止存储后再将内存中的信息对齐并写入硬盘阵列中。避免了阵列因为硬盘数量太多造成存储速率不稳定进而丢帧、错帧的瓶颈。在实际使用中可实现速率为800 Mbyte/s的超高速存储, 取得了预期效果, 实现了低成本硬件平台和高性能存储的统一。

The design of high speed digital video storage system based on 64-bit operation system is discussed because ultra high frame-rate and high pixel number digital cameras are widely used in the field of optical measurement. This system uses high performance PC as hardware platform and high capacity memory is carried. The software puts image and appendix data into cache in memory during the storage process and after the process the software writes the data into hard disks array. The choke point in unstability of data transfer speed of the increasing number of hard disks is overcomed. According to application the bandwidth can exceed 800 Mbyte/s and the expected result is obtained.