Track line gradient detection method and device and track line detection system
A detection method and track technology, which are used in measuring devices, surveying and navigation, and measuring inclination, etc., and can solve the problem of inability to detect line gradient parameters.
Active Publication Date: 2021-08-31
CHINA ACADEMY OF RAILWAY SCI CORP LTD +2
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Problems solved by technology
The existing detection items of the track detection system include track line parameters such as gauge, track direction, height, level, superelevation, triangular pit, etc. Currently, the line slope parameters cannot be detected
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[0076] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, the embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings. Here, the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.
[0077] figure 1 The implementation process of the track line slope detection method provided by the first embodiment of the present invention is shown. For the convenience of description, only the parts related to the embodiment of the present invention are shown, and the details are as follows:
[0078] Such as figure 1 As shown, the track line slope detection method is applied to the track line detection system including the detection beam. The detection methods of track line slope include:
[0079] Step 101, using the first time-domain digital low-pass filter an...
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The invention discloses a track line gradient detection method and device and a track line detection system, and relates to the technical field of track detection. The method comprises the following steps of: obtaining filtered output data of the gradiometer by using a first time domain digital low-pass filter and a shift filter; according to the gravitational acceleration and the filtered output data of the gradiometer, determining a detection beam pitch angle based on the gradiometer; taking a detection beam pitch angle based on a gradiometer after low-pass filtering by using a first finite impulse response low-pass filter as a first track line inclination angle; and determining a first track line gradient according to a function relationship between the track line inclination angle and the track line gradient. The detection beam pitch angle based on the gradiometer is determined through the filtered output data of the gradiometer, the detection beam pitch angle after low-pass filtering of the first finite impulse response low-pass filter based on the trapezoidal window function is used as the track line inclination angle to finally determine the track line gradient, and the track line gradient detection accuracy is improved.
Description
technical field [0001] The invention relates to the technical field of track detection, in particular to a track line slope detection method, a device and a track line detection system. Background technique [0002] This section is intended to provide a background or context to embodiments of the invention that are recited in the claims. The descriptions herein are not admitted to be prior art by inclusion in this section. [0003] As the operating mileage of my country's railways continues to increase, the speed of trains is also increasing, and the safety and comfort of rolling stock during operation has also attracted much attention. As the main disturbance source of the wheel-rail system, track irregularity is the main cause of rolling stock vibration. Vehicle vibration not only affects passenger ride comfort, but also endangers driving safety in severe cases. Track irregularity is defined as the deviation of the track geometry from its design parameters. Before the ...
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IPC IPC(8): G01C9/00
CPCG01C9/00
Inventor 魏世斌王琰余宁王昊李颖杜馨瑜
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD