Pipeline leak detection method based on secondary screening of acoustic real-time data

Abstract

The invention provides a pipeline leakage detection device and method based on secondary screening of sound wave real-time data and relates to the technical field of pipeline leakage detection. The device comprises a sound wave sensor module, a DSP processing module, an ARM control module, an A / D conversion module, a data storage module, a GPRS wireless communication module, a GPS time correcting positioning module, a signal conditioning amplification module and a solar storage battery module; and a sound wave signal is acquired and converted into an analog quantity, and then is converted into a digital signal to be transmitted to the DSP processing module and the data storage module, a data packet needing to be sent is sent to the ARM control module after processing, analyzing and screening, and a corresponding data packet is sent to an upper computer from the data storage module through the GPRS wireless communication module. According to sound wave real-time data information, a typical signal is subjected to secondary screening, a pipeline leakage signal is sent wirelessly in a field environment, the data transmission volume is effectively reduced, the storage space of the upper computer is greatly saved, and efficiency is improved.

Description

technical field [0001] The invention relates to the technical field of pipeline leakage detection, in particular to a pipeline leakage detection method based on secondary screening of acoustic wave real-time data. Background technique [0002] As an economical, effective and environmentally friendly means of transportation, oil and gas pipelines play an important role in the transportation of energy such as oil and natural gas. Due to the long transmission distance of oil and gas pipelines at home and abroad, the transportation safety of oil and gas pipelines cannot be ignored. In the transportation of oil and gas pipelines, there are inevitable aging, corrosion, wear and other natural and man-made damages, which will cause oil and gas in the process of transportation. There is a leak. Once leakage occurs, it will not only cause huge loss of national property and huge waste of energy, but also pollute the environment and even endanger human safety. Since the online detecti...

AI Technical Summary

Problems solved by technology

Due to the long transmission distance of oil and gas pipelines at home and abroad, the transportation safety of oil and gas pipelines cannot be ignored. In the transportation of oil and gas pipelines, there are inevitable aging, corrosion, wear and other natural and man-made damages, which will cause oil and gas in the process of transportation. leak occurred

Once a leak occurs, it will not only cause huge losses of national property, a huge waste of energy, but also pollute the environment and even endanger human safety.

Since the online detection system is used for pipeline leakage detection, the length of the pipeline to be detected can reach tens of kilometers, and there are many detection equipment in the pipeline. In particular, the sonic method is used for pipeline detection to collect high-frequency sound wave information. Usually, what is collected are background noise signals. The real-time transmission and storage of background noise signals not only wastes the transmission bandwidth, but also makes the storage device store a large amount of useless data.

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