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A real-time monitoring system for interference potential of buried metal pipelines

A buried pipeline, real-time monitoring technology, applied in the direction of electrical signal transmission system, electrostatic field measurement, signal transmission system, etc., to achieve the effect of high accuracy, large control range and wide coverage

Active Publication Date: 2021-06-22
LIAONING TECHNICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The current data collection of buried pipelines still uses voltmeters for measurement, and the collection coverage, accuracy, control range and other functions still need to be further improved

Method used

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  • A real-time monitoring system for interference potential of buried metal pipelines
  • A real-time monitoring system for interference potential of buried metal pipelines
  • A real-time monitoring system for interference potential of buried metal pipelines

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Embodiment Construction

[0055] The specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0056] The system structure block diagram of this embodiment is as follows figure 1 As shown, it includes: power supply module, on-site potential real-time acquisition and protection module, signal conversion module, control module, communication transmission module and monitoring host; among them, the power supply module, on-site potential real-time acquisition and protection module, signal conversion module and control module belong to the data acquisition The communication transmission module belongs to the communication layer, and the monitoring host belongs to the monitoring layer. The system schematic diagram is as follows figure 2 shown.

[0057] (1) The power su...

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Abstract

The invention discloses a system for real-time monitoring of the interference potential of metal buried pipelines, which belongs to the technical field of buried pipeline monitoring. The host, the on-site potential real-time acquisition module collects the interference potential of the metal buried pipeline and performs step-down processing, performs analog-to-digital conversion through the signal conversion module, and passes the converted discrete digital signal through the minimum system of the control chip in the control module based on the improved threshold value The wavelet transform method of the function performs denoising and frequency division processing on the signal, and the potential amplitude at different frequencies and the potential signal amplitude at different time points are transmitted to the monitoring host by the communication transmission module, and the monitoring realizes the management and analysis of the sampling data , and realize the control of the monitoring site through wireless communication. The invention has the advantages of wide collection coverage, high accuracy and large control range.

Description

technical field [0001] The invention relates to the technical field of buried pipeline monitoring, in particular to a system for real-time monitoring of interference potential of metal buried pipelines. Background technique [0002] In recent years, the erection of high-voltage direct current transmission (HVDC) system has entered a stage of rapid development with the rapid growth of my country's economy, and the accompanying phenomenon of high-voltage direct current transmission lines and buried pipelines is increasing day by day, resulting in grounding of high-voltage direct current transmission systems. The corrosion and interference of metal pipes are getting more and more serious. In my country's ongoing large-scale engineering projects, DC stray current interference problems are becoming more and more serious, mainly concentrated in the initial stage of HVDC transmission system operation, maintenance period and failure period. The high-voltage direct current transmissi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R29/12G08C17/02G08C19/00
CPCG01R29/12G08C17/02G08C19/00
Inventor 杨桢苏小平李鑫马子莹胡善华茹正刚葛非刘宏志
Owner LIAONING TECHNICAL UNIVERSITY
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