An underground pipeline detection and positioning system

Abstract

The invention provides an underground pipeline detection and positioning system, belonging to the field of pipeline detection, which includes an electronic marker and a marker detector; the marker detector includes an antenna module, a first radio frequency module and a control module; the electronic marker includes a marker antenna and a marker detector Two radio frequency modules; the antenna module is used to transmit the excitation signal, and the identification antenna sends the flyback signal after receiving the excitation signal, and the antenna module outputs the flyback signal to the first radio frequency module after receiving the flyback signal, and the first radio frequency module receives the flyback signal And the flyback signal is amplified and output to the control module. The control module is used to monitor and analyze the flyback signal according to the reference signal. The control module multiplies the flyback signal and the reference signal and performs integral transformation to filter out the interference signal get a valid flyback signal. The invention provides an underground pipeline detection and positioning system, which can improve the anti-interference ability of signals and realize accurate positioning of underground pipelines.

Description

technical field [0001] The invention relates to the field of pipeline detection, in particular to an underground pipeline detection and positioning system. Background technique [0002] At present, in the municipal pipeline network, the construction conditions of underground pipelines are relatively complicated, and there is a certain distance between the electronic marker and the detector of the electronic marker. In areas where the distribution density of underground metal pipelines is high, the signals collected by the detector on the ground often include Signals with multiple components have some electromagnetic interference, which affects the reception of useful signals by the receiving coil of the detector, resulting in signal instability, which brings large errors to traditional positioning accuracy and depth measurement. Contents of the invention [0003] Therefore, the object of the present invention is to provide an underground pipeline detection and positioning ...

AI Technical Summary

Problems solved by technology

[0002] At present, in the municipal pipeline network, the construction conditions of underground pipelines are relatively complicated, and there is a certain distance between the electronic marker and the detector of the electronic marker. In areas where the distribution density of underground metal pipelines is high, the signals collected by the detector on the ground often include Signals with multiple components have some electromagnetic interference, which affects the reception of useful signals by the receiving coil of the detector, resulting in unstable signals and bringing large errors to traditional positioning accuracy and depth measurement

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