基于ARM7的多路高精度数据采集系统设计与研究  

Design and Research of a Multi-channel High-precision Data Acquisition System Based on ARM7

作　　者：王典洪[1] 汪萍[1] 赵娟[2] 

机构地区：[1]中国地质大学(武汉)机械与电子信息学院,湖北武汉430074 [2]中国地质大学(武汉)信息实验中心,湖北武汉430074

出　　处：《机械与电子》2009年第6期57-59,共3页Machinery & Electronics

摘　　要：介绍了一种以ARM7微控制器为核心的多路数据采集系统.硬件部分采用的微控制器是Phliphs公司的LPC2468,A/D芯片则是TI公司24位精度的ADS1271.软件部分采用了实时性高的μc/OSⅡ作为嵌入式操作系统,在此基础上选用图形化编程语言LabVIEW完成应用程序的设计.系统实现了最高采样率50 KSPS,18位分辨率的4通道数据实时采集,可以满足绝大多数应用场合需求.This paper puts emphasis on intro- ducing a multi - channel data acquisition system based on ARM7 microcontroller. In the hardware part,we uses the LPC2468 manufactured by Philip corporation as its core and we select the ADS1271 produced by TI corporation as its A/D chip. At the same time,μc/OSⅡ is taken as its embedded oper- ating system in the software part. On this base,we choose LabVIEW which is a kind of graphical programming language to complete the application design. This system＇s highest sampling rate can reach 50 KSPS,it achieves a 18 bit resolution of the 4 -channel realtime data collection and can meet the most needs of vast applications.

关 键 词：数据采集 编程语言LabVIEW LPC2468 μc/OSⅡ 

分 类 号：TP335[自动化与计算机技术—计算机系统结构]