System for tracking railcars in a railroad environment
First Claim
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1. A system for determining real-time locations of railcars in a railroad environment, comprising:
- a plurality of railcars, each railcar including at least four RFID tags attached for railcar identification;
a RFID reader at a fixed location at every branch track in the environment to read an identification of the RFID tags; and
means for updating locations of the plurality of railcars by determining the branches on which the railcars are located.
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Abstract
A system determines real-time locations of railcars in a railroad environment. Railcars are equipped with at least four RFID tags. A RFID reader at a fixed location at every track branch in the environment reads the RFID tags. Railcar locations are updated for the railcars by determining the branches on which the railcars are located.
28 Citations
11 Claims
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1. A system for determining real-time locations of railcars in a railroad environment, comprising:
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a plurality of railcars, each railcar including at least four RFID tags attached for railcar identification; a RFID reader at a fixed location at every branch track in the environment to read an identification of the RFID tags; and means for updating locations of the plurality of railcars by determining the branches on which the railcars are located. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11)
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Specification