This thesis analyzes the structure, principle and character of VISA ( Virtual Instrument Software Architecture(VISA) ). 同时,定义了上位机与下位机相互通信的协议,深入分析了VISA(virtualinstrumentsoftwareArchitecture虚拟仪器软件系统结构)标准的结构、原理和特点。
Design and Application of Virtual Instrument System Software Architecture Description Language 虚拟仪器系统软件结构描述语言的设计与应用
In order to describe virtual instrument system software architecture effectively, this paper provides the concept & models of the virtual instrument system software architecture description language ( VSDL ). 为了正确有效地描述虚拟仪器系统软件结构,提出了虚拟仪器系统软件结构描述语言的概念与模型,对其中的模块描述、元件描述与连线描述作了详细的分析,并提供了结构化语言。
Architecture of virtual instrument was built up with two big parts-hardware architecture and software architecture, which were mainly introduced in Chapter III and Chapter IV. As the kernel of virtual instrument architecture, software architecture could be divided into four layers. 虚拟仪器体系结构由硬件体系结构与软件体系结构两大部分组成,第三章、第四章分别着重分析、介绍了这两大体系结构,而软件才是虚拟仪器的核心。