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Vehicle position tracking system

  • US 20110246025A1
  • Filed: 03/23/2011
  • Published: 10/06/2011
  • Est. Priority Date: 04/06/2010
  • Status: Abandoned Application
First Claim
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1. A vehicle position tracking system for tracking a position of a vehicle comprising:

  • an in-vehicle device mounted on the vehicle; and

    a center device mounted in an external center,wherein the in-vehicle device transmits information to the center device via a mobile communication network so that the center device tracks the position of the vehicle,wherein the in-vehicle device includes;

    a GPS detector for detecting a vehicle position of the vehicle based on a GPS signal from a GPS satellite;

    an environmental information obtaining element for obtaining environmental information, which includes a plurality of meteorological data of an outside of the vehicle as detection data and a plurality of detection time data, wherein each meteorological data corresponds to a respective detection time data,a communication element for communicating with the mobile communication network; and

    a controller for controlling the communication element to transmit the environmental information when reception of the GPS signal via the GPS detector is interrupted,wherein the center device includes;

    a communication information obtaining element for obtaining the environmental information from the in-vehicle device via the mobile communication network;

    a database for obtaining observation information and for storing the observation information at every time when the database obtains the observation information, wherein the observation information includes a plurality of meteorological data observed at each of a plurality of observation points as observation data, a plurality of observation time data and observation position data of a respective observation point, and wherein each meteorological data at a respective observation point corresponds to a respective observation time data; and

    an estimation unit for estimating a moving route of the vehicle based on the environmental information,wherein the estimation unit retrieves a plurality of observation data with a plurality of observation time data in such a manner that each observation data corresponds to respective detection data, each observation time data corresponds to respective detection time data, andwherein the estimation unit arranges a plurality of observation position data corresponding to a plurality of retrieved observation data in a chronological order so that the estimation unit estimates the moving route of the vehicle.

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