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

Abstract

The invention provides a pipeline leakage detection method based on secondary screening of acoustic real-time data, and relates to the technical field of pipeline leakage detection. It is implemented using a device including an acoustic sensor module, DSP processing module, ARM control module, A / D conversion module, data storage module, GPRS wireless communication module, GPS timing and positioning module, signal conditioning amplification module and solar battery module. The acoustic signal is processed After collection and conversion, it is an analog quantity, and then converted into a digital signal and sent to the DSP processing module and data storage module. After processing, analysis, and screening, the data packets to be sent are sent to the ARM control module, and the corresponding data packets are sent from the data storage module. Sent to the host computer via GPRS wireless communication module. Based on the real-time acoustic data information, typical signals are screened twice, and pipeline leakage signals are sent wirelessly in the wild environment. The amount of data transmitted is effectively reduced, which greatly saves the storage space of the host computer and improves efficiency.

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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