Simple high-speed train inertia guide rail detection device and detection method thereof

Abstract

The invention discloses a simple high-speed train inertia guide rail detection device. The detection device is characterized in that a T-type three-wheel trolley structure is adopted, and a medium-low accuracy (equal to or less than 0.15 degree / h) three-axis fiber optic gyroscope combination device, a 3-way odometer, a 2-way electronic level meter, a 1-way rail distance measuring device and the like are adopted to form the simple high-speed train inertia guide rail detection device and a unified whole through calibration and adjustment; a track gauge ruler and the like are taken as rail measuring auxiliary means, a unified mounting interface of a total station or a prism is reserved; measured data are formed into complete curves, wherein the curves reflect absolute parameters of a track and are consistent with the accuracy and physical meanings of a high-speed train measurement and control network; and finally, in combination with a measurement work flow, wherein the measuring efficiency can reach 2 km / h. According to the simple high-speed train inertia guide rail detection device, compared with high-precision inertial navigation and the like scheme, the price and cost can be reduced by a half, thus being favorable for product popularization and application.

Description

technical field [0001] The invention belongs to the field of high-speed rail track measurement, and in particular relates to a static detection device and a measurement method for high-speed rail track measurement; it is a product of interdisciplinary research of inertial integrated navigation technology and high-speed rail "three-in-one" measurement technology. Background technique [0002] In the stages of survey, construction, operation and maintenance of high-speed railways, in order to ensure the quality of high-speed railways, TB10601-2009 "High-speed Railway Engineering Measurement Specifications" stipulates the requirements for high-speed railway measurement and control network and "three networks in one", among which the control point of CPⅢ network It is an independent control network with high internal coincidence accuracy, and precise measurement depends on the measurement and control network. [0003] At present, the commonly used methods on high-speed rail are:...

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Problems solved by technology

[0004] 1. Pure optical total station measurement method; it uses the total station to freely set up stations, combined with the parameters of CPⅢ point, uses the reflective prism on the track detection trolley to measure the parameters of the rail point by point, and then obtains the relevant static parameters of the track through calculation; advantages It belongs to absolute measurement, and both internal and external parameters of the track can be measured. The disadvantage is that the efficiency is extremely low, and the data are discrete points;

[0005] 2. Gyro track detector method: install a single-axis or two-axis gyro on a track inspection trolley to make a high-precision gyro track detector, but only detect some static internal parameters of the railway track;

[0006] 3. Install reflectors on the gyro track detector; the parameters at both ends of the measured road section are attached to the CPIII; this method can take into account some external parameters, but the efficiency and reliability are still not ideal;

But the weakness of this invention is that if the number of mileage sensors is insufficient; the longitudinal inclination sensor, lateral inclination sensor, mileage sensor and three-dimensional gyro box are not considered as a whole for error calibration (elimination of related installation errors) when multi-source information fusion, It is difficult to effectively combine the advantages of absolute measurement and trajectory measurement; and it is not clear whether trajectory measurement can replace absolute measurement, whether the measured trajectory is an estimate of the actual trajectory parameters or a real physical measurement value

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