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System for controlling unmanned vehicles at intersections

  • US 5,845,725 A
  • Filed: 12/20/1995
  • Issued: 12/08/1998
  • Est. Priority Date: 01/09/1995
  • Status: Expired due to Fees
First Claim
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1. A method of operating unmanned vehicles comprising the steps of:

  • conveying said vehicles along respective paths towards an intersection constituting part of a predetermined area;

    warning said vehicles of said intersection at respective locations upstream of said area;

    sensing by each of said vehicles, during at least one timed interval following arrival at the respective location, for another of said vehicles, said timed intervals differing from vehicle to vehicle;

    passing through said intersection any of said vehicles which, while upstream of said area, fails to detect another of said vehicles; and

    stopping a first one of said vehicles upstream of said area when the respective timed interval ends while said first vehicle is upstream of said area and detects a second one of said vehicles.

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