POSITIONAL INFORMATION SHARING SYSTEM, POSITIONAL INFORMATION SHARING METHOD, AND POSITIONAL INFORMATION SHARING PROGRAM

摘要

A positional information sharing system, a positional information sharing method, and a positional information sharing program that is capable of sharing further accurate positions of respective users between each other. The positional information sharing system includes: a current position detecting part that detects a vehicle position on a basis of information directly obtained from a vehicle; a communication part that is installed in the vehicle and performs communication; a current position detecting part that detects a terminal position using a GPS; a communication part that is installed in a portable terminal and performs communication; and a communication availability determining part that determines whether mutual communication between the communication part and the communication part is available, in which, in a case in which it is determined that the mutual communication is available, the portable terminal mutually shares the vehicle position with a different portable terminal, and in a case in which it is determined that the mutual communication is not available, the portable terminal mutually shares the terminal position with the different portable terminal.