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Wireless vehicle monitoring system

  • US 20020038182A1
  • Filed: 03/16/2001
  • Published: 03/28/2002
  • Est. Priority Date: 06/06/2000
  • Status: Active Grant
First Claim
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1. A mobile unit which communicates with a control center of a vehicle monitoring system, comprising:

  • an interface to a GPS receiver for receiving from said GPS receiver a first set of position information;

    an interface to a dead reckoning device for receiving from said dead reckoning device a second set of position information;

    a signal processing unit selecting between said first and second sets of position information;

    a communication interface for communicating with said control center;

    a control unit that controls said signal processing unit and said communication interface, said control unit retrieving from said signal processing unit said selected set of position information and providing said selected set of position information to said control center over said communication interface.

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