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PXI high-speed data acquisition module software development

Author: XuShiJie
Tutor: WangHouJun
School: University of Electronic Science and Technology
Course: Detection Technology and Automation
Keywords: IVI LabWindows / CVI Data acquisition card Instrument drive Soft panel
CLC: TP274.2
Type: Master's thesis
Year: 2009
Downloads: 266
Quote: 5
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Abstract


The concept of virtual instrumentation is a major breakthrough in the traditional concept of the instrument , measuring instruments and personal computer close together , using the latest computer software technology to achieve the functions of traditional instruments and its extensions . Development status and market demand , the project combined with domestic oscilloscope class virtual instrument developed PXI bus - based high - speed data acquisition card , take full advantage of the powerful capabilities and rich resources of the computer , based on traditional oscilloscope function to improve the instrument . data processing and display performance , extends the synchronization between the different instruments and communication capabilities , while significantly reducing the cost of the instrument . This paper discusses the development trends of the virtual instrument test technological innovation drive of the virtual instrument plug-and-play development history , and VXI bus specification (VPP) and interchangeable virtual instrument the specification ( IVI ) Introduction the basic working principle of the data acquisition module and the hardware and software design , to explore the design and realization of data acquisition module instrument drive its soft panel . High-speed transmission between the different modules This design uses advanced field programmable gate array (FPGA) devices to achieve high-speed sampling and complex storage control and trigger functions ; oriented instrumentation system PCI expansion ( PXI ) bus , the data synchronized to accommodate the the computer powerful data processing and system management functions . In several domestic and international virtual instrument system development platform based on the comparison , the selection of the National Instruments (NI) has developed the LabWindows / CVI development environment as the design of the module software , development compatible with the the VPP specification and IVI specifications instruments drive , to design a simple and intuitive soft instrument panel , so that the user can easily operate the instrument , also developed a the instrument simulation function to facilitate the users to develop their own test applications and build a test system platform . Has been tested , the data acquisition module has high-speed data acquisition and transmission function instrument driver for instrumentation control and operation , the completion of the data collection , parameter measurement , waveform analysis , waveform display , and trigger synchronization and other functions , to meet the user 's high-speed signal acquisition and processing requirements .

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Data collection and processing systems
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