[1] Zhao R K. Rail fastening systems[M](2018).
[2] Wang S C, Han Q, Wang H et al. Laser stripe center extraction method of rail profile intrain-running environment[J]. Acta Optica Sinica, 39, 0212004(2019).
[3] Han Q, Dai P, Tan S et al. Research and manufacture of vehicle-mounted track inspection system[J]. Railway Engineering, 54, 144-147(2014).
[4] Liu J J, Xiong Y, Li B L et al. Research on automatic inspection algorithm for railway fastener defects based on computer vision[J]. Journal of the China Railway Society, 38, 73-80(2016).
[5] Mao Q Z, Cui H, Hu Q W et al. A rigorous fastener inspection approach for high-speed railway from structured light sensors[J]. ISPRS Journal of Photogrammetry and Remote Sensing, 143, 249-267(2018).
[6] Dai X X, Ding S H, Yang E H et al. Development and verification of automatic inspection system for high-speed railway fastener[J]. Journal of Railway Science and Engineering, 15, 2478-2486(2018).
[7] Wei J H, Liu C, Ren T Q et al. Online condition monitoring of a rail fastening system on high-speed railways based on wavelet packet analysis[J]. Sensors, 17, E318(2017).
[8] Li C R, Cheng S M. Device and method for detecting tightness of railway fastener: CN107421445A[P](2017).
[9] Zuo L M. Method for detecting floating of track fastener bolts based on height comparison: CN109029283A[P](2018).
[10] Zhou J B, Li Y H, Qin Z Y et al. Calibration of line structured light sensor based on reference target[J]. Acta Optica Sinica, 39, 0412005(2019).
[11] Li A J, Xin R, Wu S H. Efficient calibration method for line-structured light vision measurement system[J]. Laser & Optoelectronics Progress, 56, 221505(2019).
[12] Xie Z X, Li J P, Chi S K. Underwater binocular measurement method based on line-structured light[J]. Chinese Journal of Lasers, 47, 0504004(2020).
[13] Xia Y, Lin J H, Wang F et al. Study on dynamic detection system of rail cant based on 2D laser displacement sensor[J]. Railway Standard Design, 63, 63-68(2019).