Steel rail wearing integrative parameter vehicle-mounted dynamic measuring device and method

A comprehensive parameter and dynamic measurement technology, applied in the direction of measuring devices, railway vehicle shape measuring devices, optical devices, etc., can solve the problems of sampling density, image sensing and acquisition hardware equipment performance limitations, to reduce cost and improve utilization rate and processing efficiency, and overcome the effect that the transfer function is not 1

Inactive Publication Date: 2009-04-22
BEIHANG UNIV
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Problems solved by technology

[0007] In view of this, the main purpose of the present invention is to provide a vehicle-mounted dynamic measurement device and method for comprehensive parameters of rail wear, which solves the problem that the sampling density of existing dynamic measurement devices is limited by the performance of image sensing and acquisition hardware equipment

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  • Steel rail wearing integrative parameter vehicle-mounted dynamic measuring device and method
  • Steel rail wearing integrative parameter vehicle-mounted dynamic measuring device and method
  • Steel rail wearing integrative parameter vehicle-mounted dynamic measuring device and method

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Embodiment Construction

[0028] The vehicle-mounted dynamic measuring device for comprehensive parameters of rail wear provided by the invention, such as figure 1 As shown, it includes a visual sensor, computer, and odometer; generally, the computer is placed in the train compartment, and the computer is equipped with a high-speed image acquisition card and a measurement module. The visual sensor includes a rail section imaging system 1 and a grating projector 2. The rail section imaging system 1 is composed of a high-speed industrial charge coupled device (CCD, Charge Coupled Device) camera 3 , a filter device 4 , and a light shielding device 5 , and the grating projector 2 is composed of a semiconductor laser 6 and an optical system 7 . The grating projector 2 can project more than two light planes perpendicular to the measured rail, the distance between the light planes is known, the angle between the optical axis of the rail section imaging system 1 and the optical axis of the grating projector 2 i...

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Abstract

The invention discloses a vehicle dynamic measuring device of a steel rail abrasion integrated parameter, and the vehicle dynamic measuring device comprises a visual sensor, a computer and a mileometer, wherein, a high speed image acquisition card and a measuring module are installed in the computer, the visual sensor comprises a steel rail section image system and an optical grating projector, the optical grating projector can project out more than one light planes vertical to a measured steel rail, the measuring module is used for obtaining the vertical abrasion of the steel rail, the lateral surface abrasion, the wave depth and the wave length of the wave abrasion; the invention also discloses a vehicle dynamic measuring method of a steel rail abrasion integrated parameter. The adoption of the device and the method described in the invention can improve a sampling intensity under the condition of not improving the performance of the image sensing and an acquisition hardware equipment, thereby meeting the high speed online dynamic measurement requirement of the wave abrasion, and obtaining the exact wave depth and the wave length of the wave abrasion.

Description

technical field [0001] The invention relates to dynamic measurement technology, in particular to a vehicle-mounted dynamic measurement device and method for comprehensive parameters of rail wear. Background technique [0002] Regular inspection of rails is very important for reasonable planning and low-cost maintenance of railway transportation: on the one hand, in the early stages of rail wear and deformation, rail inspection helps to formulate a reasonable railway maintenance schedule to avoid dangerous situations; On the other hand, effective track inspection will lay the foundation for the transition from periodic track repair to state track repair, make better use of limited manpower and equipment resources, and effectively save track maintenance costs. [0003] At present, many research institutions and scholars at home and abroad have studied the detection methods of rail wear, and successfully developed various measurement devices. According to different detection me...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B21/30B61K9/08
CPCG01B11/2522G01B11/2513B61K9/08
Inventor 张广军孙军华魏振忠周富强
Owner BEIHANG UNIV
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