Dynamic Detection Algorithm for Geometric Parameters of Urban Rail Power Supply Rail
The detection of urban power supply rails is generally based on the basic rail or track centerline,and the repeatability of the detection results is poor due to sensor errors and changes in the geometric parameters of the basic rail.This article proposed a novel dynamic detection algorithm for geometric parameters of urban rail power supply rails based on the principle of inertial reference.Firstly,a benchmark for power supply rail detection was established based on inertial components.Secondly,a laser camera component was used to obtain high-frequency distance variation for the horizontal and vertical degrees of freedom between the power supply rail and the inertial reference.Finally,by integrating inertial reference and high-frequency distance change data,power supply rail height and the pull-out values of power supply rail were output.The algorithm was tested on site,and the experimental results showed that the 95th percentile of the dynamic detection repeatability of the geometric parameters of the power supply rail was less than 0.8 mm,and the detection accuracy could meet the detection requirements.This algorithm has a small data processing capacity,does not require external auxiliary information,and the detection results are stable and reliable,which has no baseline differences,and has good repeatability and reproducibility,and strong practical application value.
urban rail transitpower supply rail detectioninertial reference methodpower supply rail heightpull-out value of power supply rail
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维普
