基于USB的多路数据采集器  

Multi-channel Data Acquisition Unit Base on USB

作　　者：狄旭明[1] 吴建平[1] 

机构地区：[1]成都理工大学核技术与自动化工程学院,四川成都610059

出　　处：《自动化信息》2011年第1期62-63,54,共3页Automation Information

摘　　要：提出了一种基于USB的多路数据采集系统的设计方法。该系统利用ARM＋FPGA＋AD7656的系统组合实现16路通道信号同步采样，其中FPGA完成对A／D转换的逻辑控制，使用ARM7处理器对A／D转换数据进行处理，再通过USB接口与计算机进行数据通信。测试结果表明，基于FPGA与ARM的多通道数据采集系统结构简单盛制方便戚本较低，能够准确快速地对16路信号同时进行采集。A design method for multi-channel data acquisition system based on USB is proposed in this article. The system realizes the 16-channel synchronous signal sampling by taking use of the combination of ARM＋FPGA＋ AD7656, in this system, the logic control of A/D conversion is completed by the FPGA, and the data of A/D conversion is processed by using ARM7 processor and then the data communication between the system and the computer is conducted through the USB. The test results show that the multichannel data acquisition system based on FPGA and ARM has the advantages of structure simpleness, lower cost and easy to control, it can accurately and quickly acquire the .data of 16-channel signals at the same time.

关 键 词：数据采集 FPGA ARM AD7656 

分 类 号：TP274.2[自动化与计算机技术—检测技术与自动化装置]