Blakely, Sokoloff, Taylor & Zafman LLP
Vehicle position tracking system via satellite and method thereof
A vehicle position information transmitter via satellite, a method thereof, a vehicle position tracking system using the same and a method thereof are provided. The transmitter transmits vehicle position information and vehicle ID to the vehicle position information management center through the vehicle position information relay satellite if a satellite network communication state is good as the result of comparing a satellite signal intensity with a mobile communication signal intensity, or transmits vehicle position information and vehicle ID to the vehicle position information management center through the terrestrial network if a terrestrial network communication state is good as the result of comparing a satellite signal intensity with a mobile communication signal intensity.
Electronics and Telecommunications Research Institute
G
G01C
inventional
Cheon-Sik Seong-Pal
Sin Lee