Distance notification device and distance notification method

A distance notification device, comprising:

• a first positional information acquiring unit configured to acquire positional information on a user at a predetermined time interval;
• a second positional information acquiring unit configured to acquire positional information on multiple peripheral users present around the user and belonging to a group that the user belongs to at the predetermined time interval;
• a distance calculating unit configured to calculate respective distances between the user and the peripheral users based on the positional information on the user and the positional information on the peripheral users;
• a distance determining unit configured to determine whether or not each of the distances between the user and the peripheral users is equal to or longer than a predetermined distance;
• a coordinate information calculating unit configured to calculate and update coordinate information on a meeting point based on the positional information on the user and the positional information on the peripheral users;
• and
• a display configured to display various images;
• wherein
• the display is further configured to notify, by updating sequentially, the user of directional information toward the meeting point for the group that the user belongs to when a specific condition that a number of the peripheral users determined to be positioned at a distance equal to or longer than the predetermined distance from the user is equal to or larger than a predetermined number is satisfied, and to delete, if the directional information is notified, the directional information when the specific condition is not satisfied.