Design of High-Speed Orbit Deformation Detection System Based on the Fusion of LiDAR and Airborne Optoelectronic Imaging
High speed track deformation refers to the deformation phenomena caused by train load,temperature changes,founda-tion settlement and other factors during the operation of high-speed railway track,which greatly affects the driving safety of high-speed railway vehicles.Therefore,a high-speed track deformation detection system based on the fusion of LiDAR and airborne photo-electric imaging is designed.By designing and assembling the laser transmitter and laser signal receiver,the LiDAR imaging module is achieved.The airborne photoelectric imaging module is completed from aspects such as drones,photoelectric cameras,and PTZ,a-chieving the fusion processing of image data.With the support of the hardware optimization system,the high-speed orbit LiDAR and airborne optoelectronic images are generated,and the initial image is processed through operations such as denoising,distortion cor-rection,and defogging.The weighted fusion method is used to obtain the fusion image of LiDAR and airborne optoelectronics,extract the edge features of the fusion image,calculate the high-speed track position coordinates,and output the detection results of high-speed track deformation by comparing the coordinate calculation results with the initial structure data of the high-speed railway track.Experimental results show that the average state error detection rate of the designed system is 2.3％,and the average error value of deformation detection is 0.15 mm,indicating good detection ability.
LiDARairborne optoelectronic imaginghigh speed track deformationdeformation detection system
NETL
NSTL
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