System and method for detecting rail break/vehicle

Details System and method for detecting rail break/vehicle System and method for detecting rail break/vehicle

2007-09-11

2007-09-11

Benson, Walter (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

C246S121000, C246S12200A

Reexamination Certificate

active

11297723

ABSTRACT:
A system for detecting a rail break or train occupancy includes a current source adapted to deliver a current to an isolated block of a rail track. A voltage sensor is coupled to the isolated block and configured to detect voltage across the isolated block. A shunt device is coupled to the isolated block and configured to receive a shunt current from the current delivered by the current source. A shunt current sensor is coupled to the shunt device and adapted to detect the shunt current flowing through the shunt device. A control unit is adapted to receive input from the voltage sensor and the shunt current sensor and to monitor a variation of the shunt current with respect to the voltage to detect the rail break or train occupancy.

REFERENCES:
patent: 4432517 (1984-02-01), Ripamonti
patent: 4728063 (1988-03-01), Petit et al.
patent: 5145131 (1992-09-01), Frank
patent: 5680054 (1997-10-01), Gauthier
patent: 5769364 (1998-06-01), Cipollone
patent: 6102340 (2000-08-01), Peek et al.
patent: 2003/0038216 (2003-02-01), Holgate
patent: 2006/0060724 (2006-03-01), Francis et al.
patent: 0038639 (1981-10-01), None
patent: 2208449 (1989-03-01), None
patent: 97/30878 (1997-08-01), None

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