| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve convenience of a user at tourist site or the like when performing walking navigation using a portable terminal device. <P>SOLUTION: A first storage part 104 calculates a first average walking speed according to a schedule type, a second storing part 106 calculates a second average walking speed which is slower than the first average walking speed, a first notification time calculation part 105 calculates a first alarm notification time using the first average walking speed, a second notification time calculation part 107 calculates a second alarm notification time which is earlier than the first alarm notification time using the second average walking speed, and an alarm notification part 110 performs a two step alarm notification according to the first alarm notification time and the second alarm notification time. <P>COPYRIGHT: (C)2012,JPO&INPIT |
