基于虚拟仪器的高职电子远程实验平台设计与实现
发布时间:2018-03-11 10:46
本文选题:LabVIEW 切入点:虚拟仪器 出处:《南京理工大学》2012年硕士论文 论文类型:学位论文
【摘要】:近年来,高职教育获得了快速发展,但同时,急速扩张也带来发展经费的不足,造成实验设备的规模和更新无法满足学生需求。利用网络技术和虚拟仪器技术构建远程虚拟实验室,实现远程测控、资源共享,是一个较为经济有效的解决方案。 本课题将虚拟仪器技术、网络通信技术相结合,设计了一个可供用户远程使用的虚拟电子实验平台。平台提供两类实验,一为仿真实验,包括调幅与解调实验、调频与解调实验、混频实验、信号的分解与合成实验;一为测控实验,包括任意信号发生器实验、频谱分析仪实验、ⅡR滤波器实验、谐波失真仪实验。仿真实验由纯软件编写程序实现,通过LabVIEW提供的远程前面板技术实现网络发布,用户采用浏览器方式或者“连接至远程前面板”方式远程运行实验项目。测控实验则“虚实结合”,通过安装在服务器上的数据采集卡、NI-ELVIS实验仪和平台提供的虚拟仪器,用户远程采集实验仪上的测试信号、运用虚拟仪器进行分析处理,并通过共享变量读取到本地计算机中,实现用户的远程使用。经过调试,系统功能稳定,基本能达到设计要求。 本论文主要探讨了远程实验系统的网络通信方式、工作原理和实现方案。重点介绍了系统的软硬件设计过程,包括各实验项目的设计、平台的设计及网络通信的实现,以及DAQ的安装配置等,给出了平台远程运行效果。
[Abstract]:In recent years, higher vocational education has achieved rapid development, but at the same time, rapid expansion has also brought about the shortage of development funds. Because the scale and renewal of experimental equipment can not meet the needs of students, it is an economical and effective solution to construct remote virtual laboratory by using network technology and virtual instrument technology to realize remote measurement and control and resource sharing. This paper combines virtual instrument technology and network communication technology, and designs a virtual electronic experimental platform which can be used remotely by users. The platform provides two kinds of experiments, one is simulation experiment, including amplitude modulation and demodulation experiment, Frequency modulation and demodulation experiment, mixing experiment, signal decomposition and synthesis experiment; first, measurement and control experiment, including arbitrary signal generator experiment, spectrum analyzer experiment, 鈪,
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