Steel rail vibration measurement method and device

• Main Authors: CHEN CHUNLEI, ZHAO ZISHEN, WANG FUYIN, FU QIANG, HAN ZHI, HE YU, HAN LUPING, LIU KAI, HAO JINFEI
• Format: Patent
• Language: Chinese; English
• Published: 16.05.2023
• Subjects: CALCULATING; COMPUTING; COUNTING; IMAGE DATA PROCESSING OR GENERATION, IN GENERAL; MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES; MEASURING; OTHER AUXILIARY EQUIPMENT FOR RAILWAYS; PERFORMING OPERATIONS; PHYSICS; RAILWAYS; TESTING; TRANSPORTING

The invention discloses a steel rail vibration measurement method and device, and the method comprises the steps: calibrating a camera array according to an image of a marking plate collected by the camera array, and obtaining the calibration parameters of the camera array; images, shot by the camera array, of preset mark points on the steel rail at different moments are collected; performing three-dimensional reconstruction on the mark points according to the calibration parameters of the camera array and the images of the preset mark points on the steel rail under different time sequences to obtain three-dimensional space position coordinates of the mark points at each moment; according to the three-dimensional space position coordinates of the mark point at each moment, the space position change direction, change amplitude and change frequency of the mark point along with time are calculated; and the space position change direction, the change amplitude and the change frequency of the marking point along w