×

System for tracking railcars in a railroad environment

  • US 20070146159A1
  • Filed: 12/22/2005
  • Published: 06/28/2007
  • Est. Priority Date: 12/22/2005
  • Status: Active Grant
First Claim
Patent Images

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.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×