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US07789348B2 Methods and systems for verifying the operation of a railroad gate 有权
验证铁路门操作的方法和系统

Methods and systems for verifying the operation of a railroad gate
Abstract:
A system for verifying the operation of a railroad gate is provided. The system includes a tilt device for measuring a tilt of the railroad gate and a controller coupled to the tilt device. The controller is selectively operable in a calibration mode and a monitoring mode. In the calibration mode, the controller measures a predetermined tilt of the railroad gate. In the monitoring mode, the controller measures a current tilt of the railroad gate to determine deviations between the current tilt and the predetermined tilt.
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