基于USB3.0接口高速数据采集系统的设计

摘要

针对当前爆炸场测量中存在存储测试系统数据传输慢，经常出现丢点问题，综合运用数据采集技术、存储测试技术，设计了一种基于USB3.0的高速数据采集系统，采用并行采样技术，用两片采样率高达500 Msample/s的A/D芯片，实现高速并行数据采集，该采集系统将在XX爆炸威力试验场的模拟信号，经过模数转换送入FPGA中，再通过USB3.0接口高速传输给上位机，数据存储采用分时存储技术；该设计方法有效地解决了大容量数据采集过程中的数据的高速传输和存储问题。%To meet the problem of current existing in the explosion field measurement memory test system,the data transmission is slow and often lost some data. The high-speed data acquisition system based on USB3.0 is designed by using the data collection technology, memory test technology and parallel sampling techniques. The system a-chieved the high-speed parallel data acquisition with two sampling rates of up to 500 Msample/s A/D chip. It can bring the analog signal from the XX Explosion power test field to the FPGA after A/D conversion,and transmit to the PC by the USB3.0 interface. Data storage can use the time-storage technology. The design method can solved the problem of high-speed transmission and large data storage during the data collection effectively.