RADIO DEVICE

摘要

A modulating and demodulating section receives, from another radio device, a packet signal including at least position information of another vehicle in which the other radio device is mounted. A position information acquiring section acquires position information of the vehicle in which the radio device is mounted. An estimating section estimates a time taken for the vehicle and the other vehicle to encounter each other on the basis of these two pieces of position information. A deriving section derives a distance between the vehicle and the other vehicle on the basis of these two pieces of position information. A determining section provides notification of an encounter with the other vehicle in a case where the estimated time is equal to or less than a first threshold value or in a case where the derived distance is equal to or less than a second threshold value.

主权项

1. A radio device that is mountable in a vehicle, comprising:
a receiver that receives, from another radio device, a packet signal including at least position information of another vehicle in which the other radio device is mounted; and a processor operative to: acquire position information of the vehicle in which the radio device is mounted; estimate a time taken for the vehicle and the other vehicle to encounter each other based on the acquired position information and the received position information included in the packet signal; derive a distance between the vehicle and the other vehicle based on the acquired position information and the received position information included in the packet signal; determine an encounter with the other vehicle when the estimated time is equal to or less than a first threshold value or when the derived distance is equal to or less than a second threshold value; determine a no encounter with the other vehicle when the estimated time is more than the first threshold value or when the derived distance is more than the second threshold value; provide notification of the encounter with the other vehicle when the estimated time is equal to or less than a first threshold value or when the derived distance is equal to or less than a second threshold value; and provide notification of the no encounter with the other vehicle when the estimated time is more than the first threshold value or when the derived distance is more than the second threshold value.