基于USB接口与LabVIEW的数据采集系统设计

摘要

设计了基于USB接口与LabVIEW的数据采集系统.单片机将采集到的信号通过USB接口与串口间的桥接控制器——PL2303传输到PC机,通过LabVIEW进行分析处理.整个系统分为数据采集和数据处理2部分.实验证明,系统能实时精确地显示单片机采集的信号.%A data acquisition system based on USB interface and LabVIEW was designed. Utilizing the USB to serialbridge controller-PL2303 chip, the data collected by MCU is transmitted to PC, then analyzed and processed byLabVIEW. The whole system is composed of two parts; one is data acquisition and the other is data processing. The experiment proves that the system can display the signal acquired by MCU precisely.