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Vehicle position tracking system via satellite and method thereof

  • US 20070150193A1
  • Filed: 12/08/2006
  • Published: 06/28/2007
  • Est. Priority Date: 12/09/2005
  • Status: Active Grant
First Claim
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1. A vehicle position information transmitter via a satellite comprising:

  • a satellite network signal transceiver for transmitting and receiving a satellite signal to/from a vehicle position information relay satellite through a satellite network antenna;

    a terrestrial network signal transceiver for transmitting and receiving a mobile communication signal to/from a base station through a terrestrial network antenna;

    a receiving signal comparator for comparing an intensity of the received satellite signal with an intensity of the received mobile communication signal;

    a communication network determiner for determining a signal transmission network based on the result of comparison the signal intensities from the receiving signal comparator;

    a communication link setup unit for establishing a satellite network link through the satellite network signal transceiver or a terrestrial network link through the terrestrial network signal transceiver according to the determined communication network from the communication network determiner; and

    a transmission signal generator for generating a signal to transmit through the setup communication link at the communication link setup unit, wherein vehicle position information and vehicle ID are transmitted through the satellite network if a satellite network communication state is good as the result of comparing the signal intensities, or vehicle position information and vehicle ID are transmitted through the terrestrial network if a terrestrial network communication state is good as the result of comparing the signal intensities.

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