| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a configuration for determining the reliability of positional information using a satellite such as GPS positional information exchanged between terminals via inter-vehicle communication and pedestrian-vehicle communication. <P>SOLUTION: Based on GPS positional information of another terminal received by an inter-vehicle communication part 32 and on the moving speed and travelling direction of the other terminal obtained by an obtainment part 33, an estimation part 34 estimates the existing position of the other terminal at a next clock-time by establishing the existing position of the other terminal on the basis of the GPS positional information as reference; a determination part 35 determines the reliability of the GPS positional information received from the other terminal on the basis of a degree of matching between the estimated position of the other terminal at the next clock-time estimated by the estimation part 34 and that of the other terminal based on GPS positional information received by the inter-vehicle communication part 32 at the next clock-time. <P>COPYRIGHT: (C)2013,JPO&INPIT |
