基于ARM和LabVIEW的网络数据采集测试系统设计

Design of network data acquisition and test system based on ARM and LabVIEW

网络化虚拟仪器是继虚拟仪器之后仪器仪表领域出现的新的发展方向,提出了将嵌入式系统、网络与虚拟仪器结合的技术路线,将信号的采集、处理、存储分布于不同的网络位置的实施方案。利用ARM嵌入式在现场采集数据,通过网络通信将信号处理和存储工作交给上位机负责,采用S3C44B0X为核心的开发环境,然后进行软件系统的搭建,包括移植μC/OS-Ⅱ嵌入式操作系统,嵌入式图形界面系统μC/GUI,ADC及网卡的驱动程序编写以及移植Lw IP实现TCP/IP协议等。测试结果表明,该系统的功能完善、操作十分方便,完全满足实际应用的需要,可以有效地组织和管理数据以及构架网络数据库。

Abstract： The networked virtual instrument is the new development trend in the field of instrument and meter after that of virtual instrument. The integrated technology approach of embedded system, network and virtual instrument is proposed to distri- bute the signal acquisition, processing and storage into different network places. The ARM embedded system is adopted to ac- quire the field data. The upper computer is responsible for the single processing and storage work by network communication. The S3C44BOX is taken as the core development enviroment to establish the software system, including of μC/OS-Ⅱ embedded operating system transplant, embedded graphic interface system μC/GUI, ADC and network-card driver programmings, and LwlP transplat to realize TCP/IP protocol. The test results show that the system has perfect function and easy operation, and can satisfy the practical application needs. The system can effectively orgnize and manage the data, and construct the network database.