Shaft end grounding monocular reconstruction system and method for concentric quadratic curve epipolar geometry

Abstract

The invention discloses a shaft end grounding monocular reconstruction system and method for concentric quadratic curve epipolar geometry, and aims to solve the problem of the shaft end grounding monocular detection for concentric quadratic curve epipolar geometry. The concentric quadratic curve epipolar geometry shaft end grounding monocular reconstruction system is mainly composed of a base (1),a supporting rod (2), a camera connecting rod (3), a camera (4), a laser (5), a laser fixing block (6), a supporting rod fixing block (7), a two-dimensional target plate (8), a camera fixing block (9), a linear sliding table (10) and a laser connecting rod (12). The two-dimensional target plate (8) is a flat plate with a concentric quadratic curve pasted on the surface, and the supporting rod fixing block (7) is a cuboid iron block provided with two circular through holes with the axes perpendicular to each other and provided with circular through holes in the two ends respectively. The shaftend grounding monocular reconstruction system and method for concentric quadratic curve epipolar geometry are simple in structure and reliable in performance.

Description

technical field [0001] The invention relates to a measuring device and a measuring method in the field of rail vehicles, more specifically, it is a system and method for grounding a shaft-end monocular reconstruction of a concentric quadratic epipolar geometry. Background technique [0002] As the speed of high-speed EMUs continues to increase, the performance requirements for each component of high-speed EMUs are also getting higher and higher. The increase of vehicle speed increases the friction between the contact plate of the grounding device of the axle end of the bogie axle and the carbon brush, which poses a very serious threat to the operation safety of the rail vehicle. Commonly used contact disk measurement systems are mainly contact measurement systems. However, the contact measurement system is easy to scratch the measured object because the measuring instrument needs to be in contact with the surface of the measured object, and the measurement speed is very slo...

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Problems solved by technology

[0003] Aiming at solving the problems of low precision and low efficiency of traditional contact detection equipment and difficult measurement of some complex areas in the process of measuring the contact disc shape, the present invention proposes a method and system with reliable performance, simple structure and easy operation , to realize the three-dimensional free reconstruction of the characteristic points of the contact disc shape, and lay the foundation for further improving the wear detection technology of parts and components and improving the driving safety of high-speed trains

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