基于对等网络的虚拟仪器通信与控制

Virtual Instrument Communication and Control Based on Equal Network

网络化虚拟仪器是今后虚拟仪器的发展方向之一。基于网络化虚拟仪器的虚拟实验室以其良好的经济性、适应性,受到越来越多的科研单位和高校实验室的关注,均在大力开发研究。本文介绍了对等网络的概念,讨论了一种基于对等网络的虚拟仪器网络测控平台,通过搭建基于该平台的虚拟实验室,以信号发生器的远程控制为例,详细介绍了基于Lab-VIEW提供的TCP/IP通讯协议的虚拟仪器网络数据传输设计编程,以及基于ActiveX调用和LabVIEW提供的远程面板技术相结合的虚拟仪器远程控制设计编程,并对实现过程中应注意的问题进行了总结。最终实现了虚拟仪器的远程控制、远程访问、远程使用,从而拓宽了虚拟仪器的功能,使整个实验室具有良好的灵活性和通用性。

Networked virtual instrument will be the development trend of virtual instrument. Virtual lab based on networked virtual instrument has got much attention and has been developed energetically by more scientific research units and colleges, because of economy and adaptability. This paper introduced a concept of equal network and discussed a measurement ＆ control platform based on virtual instrument and equal network techniques. Through setting up virtual instrument lab based on equal network and taking signal generator remote control as an example, the design and programming of virtual instrument networked data transmission based on TCP/IP communication protocol, and virtual instrument remote control using ActiveX and remote panel technique are described in detail. Finally, virtual instrument remote control, remote access and remote use are realized, which extend the function of virtual instrument and make the whole laboratory convenient to use.