Scpi standard commands for programmable instruments scpi可程式仪器标准指令
Standard commands for programmable instruments scpi 可程式仪器标准指令scpi
Virtual instrument describes the combination of programmable instruments with general-purpose pcs 虚拟仪器描述了可编程仪器和通用计算机的结合。
Labview application environment is adopted for implementation of local instrument control . programmable instruments such as function generator, multi-meters, and oscilloscopes have been linked to the computer through general purpose interface bus ( gpib ) 采用labview应用程序开发环境对本地仪器进行控制,并通过gpib接口将可程控仪器,例如:函数信号发生器、数字万用表和示波器等设备连接到计算机上。
In this disseration the author researched the testing of gsm mobile telephone of the wireless instrument test and carried out it . the work that i shoud do is acquire the testing content 、 standard and method of test of the gsm mobile telephone, then write the driver program of the cmu200 . first acquaint the communication system of gsm; second introuced and analysized the technology of the software and hardware of control the programmable instrument, which include ieee 488 ( gpib ) standard bus 、 scpi ( standard commands for programmable ) and visa ( virtual instrument system architecture ); third reaserach the technology of software, it employs visual c + + 6.0 as application development platform because of its powerful function, universality and programming and employs com module because of its characteristic 、 superiority; the last ascertain the testing item and its standard 、 mehtod through searching the principle of gsm mobile and its testing criterion and select the programble instrment for testing according to the mobile telephone demands, which include cmu200 ( universal radio communication tester ) 、 e4445a ( spectrum analyzer ) 、 e4438c ( signal generator ), all of this build the platform of testing . i realize the automatic testing of gsm mobile telephone by using com module and visa 、 scpi 论文中首先了解了gsm通信系统及其关键技术;再者研究分析了可编程仪器控制的软硬件技术,包括ieee488(gpib)标准总线、scpi(standardcommandsforprogrammableinstruments可编程仪器标准命令)和visa(virtualinstrumentsystemarchitecture虚拟仪器软件架构)为对可编程仪器进行驱动编程打下基础;第三步研究了软件实现技术,对组件的优势和com的特点进行了分析确定采用com组件技术来完成驱动模块;最后根据移动台测试要求选择可编程测量仪器cmu200综测仪、e4445a频谱仪、e4438c信号源和一台测量控制计算机搭建起了测试平台,研读可编程仪器cmu200综测仪的scpi命令和visa(虚拟仪器软件架构),根据gsm移动台测试方法在vc开发平台下采用com组件形式完成对cmu200的驱动编程从而实现对gsm移动台的自动测试。