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Navigation Apparatus

  • US 20130311086A1
  • Filed: 05/16/2013
  • Published: 11/21/2013
  • Est. Priority Date: 05/17/2012
  • Status: Active Grant
First Claim
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1. A navigation apparatus, comprising:

  • a map information storage unit that stores road information related to roads;

    a position estimation unit that estimates the position of the vehicle;

    a map matching unit that, using the road information, specifies a plurality of link candidate points corresponding to the position of the vehicle as estimated by the position estimation unit;

    a parallel roads determination unit that, on the basis of the plurality of link candidate points, detects links of parallel roads that extend mutually parallel to one another;

    a traveling link determination unit that, for each link of the parallel roads detected by the parallel roads determination unit, determines whether it is a traveling link upon which the vehicle is traveling, or a parallel link that extends parallel to the traveling link; and

    a link position correction unit that obtains position correction amounts for nodes of the traveling link and of the parallel link on the basis of the distance between the one of the plurality of link candidate points that corresponds to the traveling link, and the position of the vehicle as estimated by the position estimation unit.

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