Patent ID: 9707983
Date: 2017-07-18
CPC Classifications: B61K,G01B

Claim:
1. A track status monitoring device that detects an amount of horizontal-direction displacement of a rail for a railway car to run, the device comprising: an acceleration detection unit that is disposed on the railway car and detects an acceleration at least in axle direction among accelerations generated on a wheel of the railway car; a rail position detection unit that is disposed on the railway car, wherein a position of the rail in relation to the rail position detection unit and a position of the wheel in relation to the rail position detection unit are detected, and based on both detected positions, a value indicating a position of the rail in relation to the wheel in the axle direction is detected; an integration unit that calculates a value based on a 2 a subtraction unit that counterbalances an undulating component of the wheel by subtracting a value detected by the rail position detection unit from a value calculated by the integration unit and calculates an amount of horizontal-direction displacement of the rail.