一种高速实时数据采集处理系统设计

针对目前高速数据采集中的实时性和同步性问题,提出了一种高速实时数据采集处理设计方案。根据上述方案进行了系统的硬件和软件设计,该系统以FPGA器件作为下位机控制核心,设计了时钟同步、数据采集、数据处理、数据缓存、数据通讯等功能模块;整个系统采用ARM微处理器作为上位机控制核心,基于嵌入式Linux 2.6内核进行软件编程,负责向FPGA发送设置参数和控制指令,同时对数据前端采样和处理数据进行存储、显示、统计等。经测试验证,该方案具有高速率、高精度、同步测量、实时处理、体积小、功耗低等优点。

Design of a High-speed Real-time Data Acquisition and Processing System

One solution is proposed to enhance the real-time performance and synchrony in high-speed real-time data acquisition and processing. The data acquisitionand processing system is designed in hardware and software. The modules of clock synchronization,data sampling,processing,caching and communication are designed with the FPGA device as the control core of the lower computer. On the basis of Linux 2.6 kernel,the ARM microprocessor is selected as the upper computer to send the setting parameters and control instructions to the FPGA device. Via the ARM,the sampling data and processing data can be stored,displayed and counted. The tests show that the design scheme has the advantages of high speed,high precision,good synchrony,real-time processing ,small volume and low power consumption.