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US 4,361,301 AGranted
Vehicle train tracking apparatus and method
AssigneeWestinghouse Electric Corp.
InventorDonald L. Rush
Life of this patent
Estimating the term…
Abstract
A vehicle train tracking apparatus and method are provided for responding to detected occupancies and unoccupancies of each of a plurality of signal blocks of a roadway track system to establish a position or location record of the movement of each vehicle train operating with the roadway track system.
Claims25
In apparatus for tracking the movement of a train including at least one vehicle along a roadway track including a plurality of signal blocks, the combination of
- first means for determining an occupancy of each signal block by said train,
- second means for determining an unoccupancy of each signal block by said train, and
- third means responsive to each said occupancy and to each said unoccupancy for establishing a record of the position of said train in relation to each of said signal blocks of the roadway track.
The method of tracking the movement of a vehicle along a roadway track including a plurality of signal blocks, the steps of
- detecting an occupancy of any signal block by said vehicle,
- detecting an unoccupancy of any signal block by said vehicle and
- establishing in response to each said occupancy and to each said unoccupancy a position record in accordance with the movement of said vehicle in relation to each of said signal blocks of the roadway track.
Dependencies are inferred from the claim text.