基于LabVIEW和DLL的USB2850采集卡DAQ系统设计

High Speed Data Acquiring System of USB2850 DAQ Card Based on DLL and LabVIEW

介绍了一种在LabVIEW平台下使用国产数据采集卡实现高速数据采集的可行方法。探讨了USB2850高速采集卡在复杂网络应用环境下,通过LabVIEW调用板卡的动态库(DLL),实现上层数据的采集与分析过程的关键技术。实例中设计和实现了下位测控机进行数据采集后再通过以太网与上位处理机进行通信,同时上位处理机进行数据显示和分析,以及远程的Web测控应用。

This paper introduces a feasible approache to realize high-speed data acquisition of domestic DAQ-Card in LabVIEW,. and discusses that based on complex network condition,USB2850 high-speed DAQ-Card achieves the data acquiring and analysing process on LabVIEW platform by using dynamic library （DLL）.The example designs and achieves that after data acquisition,the Lower-Machine communicates with the Host processor over Ethernet,which displays and analysises data as well as monitors and controls Web applications remotely.