Method and terminal device for detecting problem of turnout slab seam of track

Abstract

The invention is applicable to the field of track detection technology, and provides a method and a terminal device for detecting the problem of a turnout slab seam of a track. The method comprises steps of: establishing an elastic wave echo signal sample library of the problem of the turnout slab seam of the track according to knocking echo signals of a turnout slab of the track; establishing a recognition model of the problem of turnout slab seam of the track according to the neural network; determining theoretical results of the problem of the turnout slab seam of the track corresponding tosignals in the sample library; determining whether differences between the theoretical results and real results of the problem of turnout slab seam of the track corresponding to the signals in the sample library exceed a preset threshold; and if the differences do not exceed the preset threshold, determining the condition of the problem of the turnout slab seam of the track corresponding to the knocking echo signal of a to-be-detected turnout slab of the track according to the current recognition model of the problem of the turnout slab seam of the track. After adopting the above scheme, theproblem of low efficiency of manual recognition is overcome, and the intelligent recognition of the problem of the turnout slab seam of the ballastless track is realized.

Description

technical field [0001] The invention belongs to the technical field of track detection, and in particular relates to a method for detecting a defect of a track turnout slab and a terminal device. Background technique [0002] With the rapid construction and development of high-speed railways in my country, ballastless track is used as the carrier of track and train, and its quality is directly related to the smoothness and comfort of train operation. However, due to the long-term repeated action of train loads and environmental loads, the interlayer structure of the ballastless track has already suffered from defects such as separation joints, especially in the turnout plate part of the ballastless track, the structure is complex, and the force between the turnout area and the main line is uneven. And other phenomena, resulting in serious damage to the lower part of the turnout slab. [0003] At present, the detection method for the defect of the turnout slab is to use the ...

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Problems solved by technology

[0004] In view of this, the embodiment of the present invention provides a detection method and terminal equipment for track turnout slab separation defects, so as to solve the problem in the prior art that it is impossible to effectively judge whether there is a separation defect in the turnout slab, which affects the safe and stable operation of the railway.

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