| 摘要 |
<P>PROBLEM TO BE SOLVED: To perform route guide to a guide object enabling replenishment of an article out of stock, without damaging convenience of a user. <P>SOLUTION: This navigation device 10 is equipped with a stock information acquisition part 16a for acquiring stock information of an article from an article monitoring device 30 for monitoring the article stored in a desired storing space (namely, a refrigerator 20), a stock determination part 16b for determining whether the stock of the article is short or not based on the stock information of the article acquired by the stock information acquisition part 16a, and a route setting part 16c for setting a route wherein the guide object enabling replenishment of the article is used as a destination of own vehicle, when determined that the stock of the article is short by the stock determination part 16b. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
