| 摘要 |
PROBLEM TO BE SOLVED: To allow you to surely meet someone you are looking for by giving notice if the person you are looking for is in the vicinity at an evacuation site and the like even if a mobile phone and the like cannot be used due to the occurrence of a disaster such as an earthquake.SOLUTION: Users A and B bring their mobile terminals 10-1 and 10-2 with themselves. The mobile terminals 10-1, 10-2 register each other as a communication destination in advance, and are able to communicate within a range not exceeding prescribed communication distance at which it is possible to look for a partner visually. If the user A looks for the user B, the mobile terminal 10-1 transmits a calling signal to the mobile terminal 10-2 by calling operation. The mobile terminal 10-2 having received the calling signal from the mobile terminal 10-1 gives notice of the calling to inform the user B that the user A is looking for, and automatically transmits a call response signal to the mobile terminal 10-1. When the calling source mobile terminal 10-1 received the call response signal from the mobile terminal 10-2, it gives notice of the call response and notifies the user A that the user B is in the vicinity. |
