Data processing: vehicles – navigation – and relative location – Vehicle control – guidance – operation – or indication – Railway vehicle
Reexamination Certificate
2007-04-24
2007-04-24
Le, Mark T. (Department: 3617)
Data processing: vehicles, navigation, and relative location
Vehicle control, guidance, operation, or indication
Railway vehicle
C701S220000, C246S12200A
Reexamination Certificate
active
10980191
ABSTRACT:
A locomotive location system and method utilizes inertial measurement inputs, including orthogonal acceleration inputs and turn rate information, in combination with wheel-mounted tachometer information and GPS/DGPS position fixes to provide processed outputs indicative of track occupancy, position, direction of travel, velocity, etc. Various navigation solutions are combined together to provide the desired information outputs using an optimal estimator designed specifically for rail applications and subjected to motion constraints reflecting the physical motion limitations of a locomotive. The system utilizes geo-reconciliation to minimize errors and solutions that identify track occupancy when traveling through a turnout.
REFERENCES:
patent: 5902351 (1999-05-01), Streit et al.
patent: 6408254 (2002-06-01), Suter
patent: 6424914 (2002-07-01), Lin
patent: 6831599 (2004-12-01), Morgan
patent: 2001/0020216 (2001-09-01), Lin
patent: 2002/0010531 (2002-01-01), Hawthorne et al.
patent: 2002/0072833 (2002-06-01), Gray
patent: 2002/0103585 (2002-08-01), Biess et al.
patent: 2003/0236598 (2003-12-01), Antelo et al.
patent: 2004/0006413 (2004-01-01), Kane et al.
patent: 2004/0015275 (2004-01-01), Herzog et al.
patent: 2004/0015276 (2004-01-01), Kane et al.
Metzger Thomas R.
Meyer Thomas J.
Le Mark T.
Lockheed Martin Corp.
Walter Wallace G.
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