Detector for sensing motion and direction of a railway device

Details Detector for sensing motion and direction of a railway device Detector for sensing motion and direction of a railway device

1999-09-01

2000-07-11

Lee, Benjamin C..

Communications: electrical

Condition responsive indicating system

Specific condition

340669, 340683, 34087003, 310318, 240167R, 240182R, 73651, G08B 2100

Patent

active

060879505

ABSTRACT:
A motion detector for detecting movement of a rail based vehicle and the direction of that movement is provided. The motion detector can be integral with or attachable to an end-of-train unit and can include a single axis accelerometer mounted at an angle from the rails for detecting acceleration in both the lateral and vertical directions. A systems controller, which can include an analyzer, can be provided to receive and analyze output from the accelerometer to determine a motion state and a direction. A power controller can be provided for supplying power to the accelerometer on an intermittent basis to conserve power. A calibration unit can be provided to both initially calibrate and to subsequently recalibrate the accelerometer after a stopped motion state is detected. Additionally, an input/output port and an output driver for conditioning the signal for output to the end-of-train unit can be provided.

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