| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To solve the problem wherein the position of a vehicle driven by oneself becomes unknown when a user, namely a driver of the vehicle, gets out of the vehicle and then tries to get on the vehicle again after a while. <P>SOLUTION: A portable machine includes: a position detector for detecting the position of the portable machine; a door lock operation device for operating locking/unlocking of the door of a vehicle; a storage device for storing the position of the portable machine when trying to lock the door of the vehicle by the door lock operation device for vehicles as a parking position of the vehicle; and a notification device for notifying a relative position relationship between the parking position of the vehicle and the position of the portable machine. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
