基于GPS授时的多通道数据同步采集系统  

A Multi-channel Synchronous Acquisition System with GPS Timing

作　　者：周文渊[1] 李宏云[1] 万可友[1] 李白平 

机构地区：[1]西北核技术研究所,西安710024

出　　处：《计算机测量与控制》2015年第7期2532-2534,共3页Computer Measurement &Control

摘　　要：针对异地多通道同步数据采集需要,设计并实现了一种基于GPS授时的多路数据采集系统;利用EP4CE10F17C8+UBLOX-6T+ADS8568+CYPRESS68013A的组合实现8路数据的同步采样及上传;系统内建两个高精度时钟,通过GPS秒脉冲校准,从而获得每个采样点的准确时间;以FPGA为核心,完成AD转换控制、数据组织和缓存、USB数据传输控制;基于VS2010应用程序完成数据的接收和处理;测试结果表明,该系统各模块设计合理,运行稳定,实时性高,具有较好推广价值。A multi-channel data acquisition system based on GPS timing was designed for long-distance multi- channel synchronized data acquisition.The system combined EP4CE10F17C8,UBLOX-6T,ADS8568 and CYPRESS 68013 A to implement 8-channel synchronized and update.The exact time of each sample was obtained with two build-in high precision clock synchronized with GPS timing plus.The FPGA functioned as the core,controlling AD conversion,data organization,caching,and USB transmission.A PC program based on VS2010 was written for data receiving and processing.An experiment shows that the system is stable,features high real-time performance,have a good application value.

关 键 词：数据采集 ADS8568 FPGA GPS授时 

分 类 号：TP274[自动化与计算机技术—检测技术与自动化装置]