Patent ID: 7840345
Filing Date: 2010-11-23
Classification: G01C,G01S,G08G

Abstract:
1. A positional information use apparatus for a vehicle, the apparatus comprising: a position calculation unit configured to calculate a current position of the vehicle; a POI storing unit configured to store POI positional information on a position of a Point Of Interest (POI); an acquisition unit configured to acquire state information on a change in a heading direction of the vehicle, the acquisition unit being a sensor configured to detect a heading direction of the vehicle; an area determination unit configured to make an area determination, based on the calculated current position, as to whether the vehicle is present within a predetermined stop-off determination area, which is defined based on the stored POI positional information, for determining a stop-off of the vehicle at the POI; a stop-off determination unit configured to make a stop-off determination, based on the acquired state information on the change in the heading direction of the vehicle, as to whether the vehicle stops off at the POI when the area determination is affirmatively made; a confidence degree calculation unit configured to calculate a confidence degree in an accuracy in the affirmatively made stop-off determination by evaluating at least one predetermined parameter for confidence evaluation; and an in-vehicle device control unit communicative with an in-vehicle device and configured to control the in-vehicle device according to the calculated confidence degree such that the in-vehicle device performs a predetermined operation corresponding to the POI when the stop-off determination is affirmatively made and the calculated confidence degree shows the accuracy but not when the stop-off determination is affirmatively made and the confidence degree does not show the accuracy.