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Research on Test System of ZPW-2000R Automatic Block System

Author: WangJiKun
Tutor: HePing
School: Harbin Institute of Technology
Course: Control Science and Engineering
Keywords: ZPW-2000R Receptor Test system TMS320F2812 FIR digital filter
CLC: TP368.1
Type: Master's thesis
Year: 2011
Downloads: 27
Quote: 0
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Abstract


The frequency shift automatic blocking system to ensure the the railway safe and efficient running equipment, China is promoting the application ZPW-2000 Series frequency-shift automatic block system is currently the most advanced. Our existing frequency shift device test system is mainly used for the maintenance of the railway electricity department, and shift the frequency test equipment manufacturers for product delivery inspection system has been relatively rare. Manufacturers are now using the the artificial test method is not only time-consuming effort requires a lot of instruments, but does not meet the requirements of modern enterprise management. Learning device test system at home and abroad in the frequency shift and manual testing methods based on automatic test system design a ZPW-2000 Series frequency-shift automatic blocking system receiver. The system is fully reproduce the manual testing process, the entire testing process is almost no artificial, improve test efficiency, saving the cost of test, to exclude the impact of the human subjective factors on test accuracy has important practical value. Firstly ZPW-2000R type shift works explore frequency automatic blocking system receiver, according to the manual testing process, given the overall design of DSP-based test system. The test system using the host computer and the next bit machine binding, this article mainly work on the lower machine study The main contents are as follows: the design of the DSP lower machine hardware, high-speed digital signal processor TMS320F2812 as the master chip with signal amplitude adjustment switch, multiple the waveform adjustment peripheral circuit receiver input signal to provide acquisition parameter to be measured, and for data processing, the basic functions of the RS485 communication with the host computer. Elaborate works of various functional modules and design ideas, summarized the problems in the actual process of debugging and given circuit board PCB design considerations. Design of a DSP-based machine software development environment CCS and XDS510 emulator, place under the control procedures to achieve the function of various parameters of the test according to the manual testing process, design, and discussed in detail the various parameters of the test process. Problems testing process the sampled data in the presence of interference, using MATLAB analyzed interference frequency component use FDATool tools designed FIR low-pass filter, and the filtering effect in the Simulink environment simulation, and finally to the designed filter in the DSP to achieve.

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