基于多线程技术的USB数据采集系统设计

USB Data Acquisition System Based on Multi-threading Technology

随着计算机技术和电子信息技术的高速发展,数据采集结合先进的电子技术,已经能利用软件来处理大量的测量数据.已成为PC标准的通用串行总线USB为多点数据采集提供了很大的便利,利用USB可以实现较传统方式更有效、更经济的数据采集.文章提出一种由AT89C5131控制的USB数据采集系统的设计与实现方案.介绍了该系统的整体结构,详细论述了多线程应用程序的设计.测试结果表明采用多线程技术有效地提高了应用程序的效率,从而实现了系统对数据的实时采集和处理.

With the development of computer and information techniques, the data acquisition system combined with advanced electronic techniques could process vast data by software. Universal Serial Bus （USB） which has been the PC standard provided a lot of convenience for data acquisition. Using the USB can achieve more effectively, more economicly than traditional methods. The design and realization of a kind of USB data acquisition system which was controlled with AT89C5131 were presented. Then, the whole systematic architecture was introduced, and multi-threading application design was detailed. The experiments indicated that multi-threading improved the efficiency of application effectively, realized real-time acquisition and processing of data.