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计算机工程 ›› 2009, Vol. 35 ›› Issue (23): 234-236. doi: 10.3969/j.issn.1000-3428.2009.23.082

• 工程应用技术与实现 • 上一篇    下一篇

基于PC的吉比特级数据采集快视系统

刘 鹏1,2,张善从1   

  1. (1. 中国科学院光电研究院,北京 100190;2. 中国科学院研究生院,北京 100190)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-12-05 发布日期:2009-12-05

PC-based Quick-Look System for Gigabit Data Acquisition

LIU Peng1,2, ZHANG Shan-cong1   

  1. (1. Academy of Opto-Electronics, Chinese Academy of Sciences, Beijing 100190; 2. Graduate University of Chinese Academy of Sciences, Beijing 100190)

  • Received:1900-01-01 Revised:1900-01-01 Online:2009-12-05 Published:2009-12-05

摘要: 针对某飞行器的有效载荷数据处理单元的吉比特级高速输出信号,实现一个基于PC的吉比特级数据采集快视系统。可以从飞行器内部总线上采集数据,对图像数据进行实时显示,将原始数据写入RAID磁盘阵列保存。为实现高速数据采集,设计一块专用的数据采集卡,利用FPGA对原始数据进行必要处理,通过PCI-E总线将数据接入PC主板。该系统还特别考虑降低CPU占用率以提高系统性能。

关键词: 有效载荷数据处理, 高速数据采集, 快视, PCI-E总线, RAID磁盘阵列

Abstract: A PC-based Quick-Look System(PC-QLS) is developed to meet the demand of quick-looking some Gigabit-per-second payload data on the fly during ground testing stage. The PC-QLS acquires bit stream from the satellite’s internal bus interface, extracts the data frames and displays on PC monitor the real-time remote sensing image as well as messages. Meanwhile, it archives the acquired raw data utilizing a RAID0 disk array. A Data Acquisition Board(DAB), which significantly reduces the PC’s heavy task of dealing with such a high speed real-time data flow, is also designed to pre-process data. To deliver the still not slow pro-processed data stream into PC’s mother board, DAB adopts the PCI Express(PCI-E) bus interface.

Key words: payload data handling, high-speed data acquisition, quick-look, PCI Express(PCI-E) bus, RAID disk array

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