| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device for accurately measuring the travel trajectory of a carriage on rails regardless of trajectory irregularity. SOLUTION: The device measures the travelling distance L from a starting point A of the carriage 10 travelling on a pair of rails 6L, 6R, the azimuthα/the pitching angleβ, and the undercarriage/the intervals dL, dR between the rail pair continuously, measures the trajectory irregularity of the rail pair 6L, 6R based on the measured values of the intervals dL, dR between the rail pair and compensates the travelling distance L, the azimuthα, and the pitching angleβaccording to the measured values. From the travelling distance L and the azimuthα/the pitching angleβcompensated, the travelling trajectory of the carriage 10 with respect to the starting point A is derived. Preferably, the device measures the vertical acceleration of the carriage 10 continuously, measures the trajectory irregularity of the rail pair 6L, 6R based on the measured values of the intervals dL, dR between the rail pair and the vertical acceleration of the carriage 10, and compensates the travelling distance L, the azimuthαand the pitching angleβbased on the measured values. COPYRIGHT: (C)2004,JPO
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