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Train control system integrating dynamic and fixed data

  • US 5,340,062 A
  • Filed: 08/13/1992
  • Issued: 08/23/1994
  • Est. Priority Date: 08/13/1992
  • Status: Expired due to Term
First Claim
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1. In a system for controlling the movement of a train along a railroad track, the combination comprising:

  • means for continuously transmitting in an uninterrupted fashion, unsolicited dynamic data concerning track availability and routing, said dynamic data defining a cab signal aspect;

    a plurality of localized transmitting units spaced along said track at preselected locations and each having means for transmitting fixed data appropriate to the respective location including a timetable speed limit to be observed by a train; and

    data processing means adapted to be carried by a train for continuously receiving said dynamic data, intermittently receiving said fixed data as the train successively passes said locations, and continuously integrating the fixed data with the continuously received dynamic data and determining train control instructions therefrom, such that the timetable speed limit of said fixed data is observed if more restrictive than the received cab signal aspect of said dynamic data.

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