Vehicle-mounted communication device

Abstract

The vehicle-mounted communication device includes: a reception unit which receives, from remote vehicles, remote-vehicle messages each including information about a remote-vehicle position; an ego-vehicle information acquisition unit which acquires, as information about an ego vehicle, ego-vehicle information including at least an ego-vehicle position, an ego-vehicle speed, and an ego-vehicle advancing direction; a message processing area determination unit which determines a message processing area on the basis of the ego-vehicle information; a message processing necessity determination unit which acquires the remote-vehicle messages from the reception unit, outputs, as a selected remote-vehicle message, a remote-vehicle message the remote-vehicle position of which is present within the message processing area, and discards a remote-vehicle message the remote-vehicle position of which is present outside the message processing area; and a message processing unit which performs processing on the selected remote-vehicle message outputted from the message processing necessity determination unit.