文档介绍：华中科技大学硕士学位论文
Abstract
The purpose of this thesis is to design an Electronic Cabin tester, which can realize
automatic measurement for product. The key point of the system is the PXI control
computer and the control board. FPGA which is embedded in Control board, control the
state of the relay matrix, realizes power supply, measure signal’s level and frequence.
PXI-6123 based on Labview development environment responses for the send of
control word, signal’s sampling and displaying,
This whole system integrates PXI puter, control board and three electronic
devices, include arbitrary waveform generator, digital oscilloscope, and digital multimeter.
PXI mands the arbitrary waveform generator through serial port, the
control board through PXI-6123, the digital oscilloscope through USB port, and finally
completes the measurement of all the performance parameters of the Electronic Cabin
tester automatically.
Firstly, the thesis introduces the concept of Virtual Instrument, the classify, the feature,
and the development trend, describes the architecture of Virtual Instrument. Secondly,
analyze the design idea and system architecture of the Electronic Cabin tester, pay more
attention to the setup of hardware platform, including device selection and the control
board design. Thirdly, describe the realization of all of the instrument control modules and
measurement functions in details. Finally, the project research results and some problems
needed to be solved is proposed.
Key words : FPGA; PXI puter; Labview; Automatic measurement
II
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