Track geometric state measurement system and method based on multisource information fusion technology

Abstract

The invention discloses a track geometric state measurement system based on a multisource information fusion technology and a track geometric state measurement method based on the multisource information fusion technology. The track geometric state measurement system comprises a track detection trolley and a total station, wherein the track detection trolley is provided with a computer with measurement software, a track gauge sensor, a longitudinal inclination angle sensor, a transverse inclination angle sensor, a mileage sensor and a three-dimensional top box. The invention also discloses the track geometric state measurement method. The invention has the advantages of high measurement precision and wide application range, integrates the advantage of absolute measurement of the total station and the advantage of locus measurement of the three-dimensional top box, and has remarkably higher measurement efficiency.

Description

technical field [0001] The present invention relates to a track geometric state measurement system and method, in particular to a track geometric state measurement system and method based on multi-source information fusion technology. Background technique [0002] High-speed railway is the development trend of railway transportation in the world today. With the construction and operation of large-scale passenger dedicated lines in my country, higher requirements are put forward for railway tracks. The accurate geometry of the railway track is the most basic condition to ensure the safe operation of the train. Only a high and smooth track can ensure the high-speed and safe operation of the train. For this reason, in addition to special requirements for the design and construction of railway engineering and track engineering, a complete, efficient and accurate engineering measurement system must be established. The track precision control network has been established during ...

AI Technical Summary

Problems solved by technology

However, in this measurement method, the trolley must stop running at all measurement points to ensure that the measurement is carried out under the stationary state of the trolley. This mode is called single-point static measurement mode, and the measurement efficiency is low, and the speed of field work is average. Around 100~200m / h

Due to the fixed-point independent measurement method, the measurement accuracy of the smoothness parameters of the track cannot meet the needs of operation and maintenance, the measurement accuracy is low, and the scope of application is small

Therefore, there is a big gap between this kind of equipment and the objective requirements of the actual application in the field. It is necessary to study a set of high-precision and high-efficiency track geometric state measurement methods and systems suitable for railway operation and maintenance.

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