Real-time and Multi-channel Parallel Data Acquisition System Based on CPLD

摘要：

Data acquisition technology is widely used in modern industry and science research. It is the precondition of information processing system. Due to high frequency, fast transportation speed, and real-time parallel sampling requirements, conventional data acquisition methods can not satisfy new demands of modern data acquisition. In this paper we propose a CPLD based multi-channel parallel data acquisition system in which each data acquisition channel consists of a signal recuperates module, an A/D converter and an asynchronous dual-port static RAM. It adopts CPLD as the control core, achieves the goal of complete parallel data acquisition by controlling sampling clock of each A/D converter, transports data using time-sharing method by cycle, assures no breakpoint and parallel process of acquisition, store and transportation. The actual result shows that the system has excellent accuracy and reliability.

关键词： Data acquisition USB CPLD Parallel A/D converter Real-time

作者: DAI Guojun LIU Peng ZHANG Xiang ZENG Hong FU Tingting

作者单位: Institute of Computer Application Technology, Hangzhou Dianzi University, Hangzhou, 310018 Institute of Graphics and Image, Hangzhou Dianzi University, Hangzhou, 310018,

会议类型: 国际会议

会议名称: 第七届国际测试技术研讨会

会议地点: 北京

会议语种:英文

在线出版日期: 2007-08-05（万方平台首次上网日期，不代表论文的发表时间）