ACCURATE LOCATION METHOD FOR TRACK PRECISION MEASUREMENT AND FINE TAMPING OPERATION IN RAIL TRANSIT TUNNEL

• Main Authors: YANG, Shuangqi, ZHANG, Yunlong, HU, Shihui, HUANG, Dazhong, SHI, Debin, TAN, Zhao, HU, Jinmin, WANG, Jiao, LIANG, Yong, FANG, Bole, WANG, Shaolin, QI, Chunyu, AN, Ran
• Format: Patent
• Language: Chinese; English; French
• Published: 03.10.2024
• Subjects: GYROSCOPIC INSTRUMENTS; MEASURING; MEASURING DISTANCES, LEVELS OR BEARINGS; NAVIGATION; PHOTOGRAMMETRY OR VIDEOGRAMMETRY; PHYSICS; SURVEYING; TESTING

Disclosed is an accurate location method for track precision measurement and fine tamping operation in a rail transit tunnel, comprising: S1, before performing track precision measurement and fine tamping, arranging an RFID location tag at the center position of the upper surface of each sleeper in a tunnel; S2, collecting full-line track precision measurement data by means of a track inspection instrument having a sleeper identification module integrated therein; S3, performing sleeper center accurate identification; S4, performing line centerline three-dimensional coordinate calculation and line shape fitting; S5, performing sleeper center accurate mileage and three-dimensional coordinate calculation; S6, when the RFID location tag is arranged for the first time, writing an information file of each sleeper obtained in S5 into the RFID location tag corresponding to the sleeper, and then executing S8; S7, when the RFID location tag has been arranged, updating sleeper file information in the RFID location tag,