High-precision detection method and vehicle for track geometric parameters

Abstract

The invention provides a high-precision detection method and vehicle for track geometric parameters, and belongs to the technical field of data detection. The high-precision detection vehicle for thetrack geometric parameters comprises a vehicle body, a track wheel set, a sensor set, an inclinometer, a data acquisition card, a lithium battery and an industrial personal computer; the vehicle bodycomprises a bottom plate, a bottom bracket, a detection beam, a seat, an equipment placing table and a sun visor, the track wheel set comprises a front track wheel and a rear track wheel, and the sensor set comprises two laser sensors. According to the high-precision detection method for the track geometric parameters, actual geometric parameter data is generated after initial coordinate data is sequentially subjected to filtering processing and error correction processing, filtering processing effectively reduces the interference of the ground and weeds with the initial coordinate data, and therefore the accuracy of the finally-generated geometric parameter data is ensured.

Description

technical field [0001] The invention relates to the technical field of data detection, in particular to a high-precision detection method of track geometric parameters based on tramway grooved rails and a high-precision detection vehicle of track geometric parameters. Background technique [0002] In recent years, urban rail transit such as subways, light rails, and modern trams has developed rapidly. Modern trams are superior to subways and light rails in terms of cost, energy consumption, service life, construction period, and safety, and can effectively solve urban traffic problems. Social problems such as congestion and traffic pollution meet the needs of low-carbon and fast transportation in modern cities, so modern trams have been rapidly promoted and developed across the country. At present, more than a dozen cities across the country have opened and operated trams, and more than 100 cities have proposed the intention or planning of building modern tram lines. Facing...

AI Technical Summary

Problems solved by technology

[0004] The problem with the existing geometric parameter detection method of grooved rails is that when correcting, the method mostly uses the data of the rail vertices as the calculation reference, but in fact, the rail vertices are mostly covered by weeds or cement ground. Therefore, the coordinate data of the track vertices in the contour data obtained by the laser displacement sensor has a large deviation, which leads to a large deviation in the final calculated track geometric parameters.

Images