| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve determination accuracy in determining whether or not an own vehicle has visited a destination. <P>SOLUTION: A navigation device 10 stores OFF periods of an ACC power supply set for every genre of destinations as reference OFF periods in a reference OFF period information database 22, extracts a reference OFF period corresponding to a destination set by a destination setting part 24 by means of the reference OFF period extraction part 26, and determines that an own vehicle has visited the destination by a determination part 27, when the ACC power supply is turned off in a state that the position of the own vehicle detected by an own vehicle position detection part 23 is within a prescribed distance from the position of the destination specified by a destination position specification part 25 and also the OFF period of the ACC power supply exceeds the extracted reference OFF period. <P>COPYRIGHT: (C)2012,JPO&INPIT |
