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A DSP-Based Acoustic Underground Pipeline Location Method

A technology for underground pipelines and positioning methods, which is applied in seismology, scientific instruments, and acoustic presence detection. Flexible effects

Active Publication Date: 2019-02-22
JIANGSU SHENXIANG ELECTROMECHANICAL +1
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  • Description
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Problems solved by technology

[0019] Aiming at the deficiencies of the above-mentioned prior art, the purpose of the present invention is to provide a DSP-based acoustic underground pipeline positioning method to solve the existing high demand for pipeline positioning in urban development, but the current large-scale use of PE pipelines is difficult to locate. a pair of contradictory questions

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  • A DSP-Based Acoustic Underground Pipeline Location Method
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  • A DSP-Based Acoustic Underground Pipeline Location Method

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Embodiment Construction

[0040] In order to facilitate the understanding of those skilled in the art, the present invention will be further described below in conjunction with the embodiments and accompanying drawings, and the contents mentioned in the embodiments are not intended to limit the present invention.

[0041] A kind of acoustic underground pipeline location method based on DSP of the present invention comprises as follows:

[0042] Based on the system structure such as figure 1 As shown, the TMS320F28335 development board of TI Company is selected, the upper layer application software is CCS6.0, and the emulator is powered by XDS100v3, 12.6V regulated power supply. The DA module is used as a signal generator to periodically send signals, which are amplified by the power amplifier and sent out through the transmitting sound sensor; the receiving end uses the AD module for data collection, because the analog input range of the AD module is 0-3V to ensure the safety of the AD chip Therefore,...

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Abstract

The invention discloses a DSP-based acoustic underground pipeline positioning method, belonging to the technical field of industrial automation and test and measurement. According to the principle of the acoustic positioning technology in the underground PE pipeline detection, the DA module and the AD module of a DSP-F28335 developing plate are taken as the master control chip, and a set of acoustic positioning test system is designed and realized. By taking the complementary Golay sequence as the transmission sequence, a receiving end performs real-time processing on the acquired weak echo acoustical signal and the position of the target point can be calculated according to the echo time delay. The method can accurately position the position of the underground pipeline, and meanwhile, provides the basis for the further development of an underground PE pipeline positioning instrument.

Description

technical field [0001] The invention relates to the technical fields of industrial automation and testing and measurement, and specifically refers to a DSP-based acoustic underground pipeline positioning method. Background technique [0002] Underground pipelines are an important part and infrastructure of a city, providing protection for people's normal production and life at all times. Today, with the continuous development of urban modernization, the number and types of underground pipelines are constantly increasing. PE pipe has the advantages of convenient construction, corrosion resistance and impact resistance, so it is more and more widely used in pipeline engineering, but its non-conductivity and non-magnetic conduction make positioning difficult, which increases the possibility of third-party construction damage to the pipeline. According to reports and statistics, in the first half of 2013, there were 11 third-party sabotage accidents of gas pipelines in Shenzhen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01V1/00
CPCG01V1/001
Inventor 戴晶晶杨东林徐大专
Owner JIANGSU SHENXIANG ELECTROMECHANICAL
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