Vehicle tracking, communication and fleet management system

  • US 20040039504A1
  • Filed: 08/25/2003
  • Published: 02/26/2004
  • Est. Priority Date: 12/19/1999
  • Status: Active Grant
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First Claim
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1. A vehicle fleet management information system for fleet asset management by enabling identification of location and direction of movement, if any, of each vehicle in said fleet in real-time and to automatically communicate directly therewith for reporting of vehicle location, direction and status of predetermined events in which the vehicle may become engaged, said system comprising:

  • apparatus for broadcasting information to vehicles in the fleet over a communications network in which each vehicle is a participant, with precise time synchronization of the broadcast information according to timing employed in a navigation system for said fleet relative to a stable reference point, apparatus in each vehicle for detecting predetermined events of interest and reporting information concerning vehicle location and said detected events to a fleet management office over said communications network, and said broadcast apparatus including apparatus for assigning each vehicle in the fleet a unique time slot to transmit its reporting information without substantially interfering with transmissions from other vehicles in their own respective time slots.

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