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The Design and Implementation of the Leak Location System for Underground Pipeline Based on DSP and μC/OS-Ⅱ

Author: NaShunWuLiJi
Tutor: TieYong
School: Inner Mongolia University
Course: Signal and Information Processing
Keywords: Leak location DSP HR filtering Cross-correlation time delay estimation μC / OS-II
CLC: TP274.4
Type: Master's thesis
Year: 2009
Downloads: 73
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Abstract


This article uses DSP chip TMS320VC5416-160 as a core processor, μC/OS- Ⅱ real-time operating system platform to complete leak location system hardware and software design , to achieve the dual leaky sound signal acquisition, filtering, correlation analysis and mapping results display. This paper introduces the underground pipeline leak localization principle and system hardware and software design ; in the MATLAB platform based on system needs IIR filter design parameters, and the DSP filtering algorithm written in assembly language programs ; using fast correlation algorithm on DSP achieve cross-correlation time delay estimation leak location , and in the CCS environment simulation testing to verify the feasibility of the system ; to improve system performance , the DSP transplant μC/OS- Ⅱ embedded real-time operating system, and uses its multi-tasking management functions for system programming. System design debugging is complete, the simulated field environment using two -way cable signal receiving means complete system simulation test , the test is given in the text and position displays the results. Finally, the paper summarizes the main work and its problems , and suggestions for future work and prospects . This design proved positioning system leak detection speed , accurate positioning , stable performance , low power consumption , simple operation with high practical value.

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CLC: > Industrial Technology > Automation technology,computer technology > Automation technology and equipment > Automation systems > Data processing, data processing system > Centralized testing and roving detection system
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