Wireless communication device with frequency channel selecting

摘要

There are provided a wireless communicator that performs channel scanning, in a period during which wireless communication is not performed, to detect a frequency channel currently used by a surrounding wireless communication device; a frequency channel information storage that stores frequency channel information indicating the frequency channel detected by the wireless communicator; and a travel information acquisition unit that acquires travel information indicating motion of a vehicle. A switch controller performs switching control of a frequency channel used by the wireless communicator in accordance with the frequency channel information and the travel information acquired by the travel information acquisition unit.

主权项

1. A wireless communication device that is installed in a moving object and that performs wireless communication by using a frequency channel selected from among a plurality of frequency channels, the wireless communication device comprising:
a wireless communicator that detects a frequency channel currently used by another wireless communication device presenting around the moving object and measures a signal strength of the detected frequency channel; a frequency channel information storage that stores frequency channel information indicating the detected frequency channel and the measured signal strength; a travel information acquisition unit that acquires a travel speed of the moving object as travel information indicating motion of the moving object; and a switch controller that determines whether to change the frequency channel used by the wireless communicator on a basis of the frequency channel information and the travel information and that performs switching control of the frequency channel of the wireless communicator in accordance with a result of the determination, the switch controller deciding not to change the frequency channel used by the wireless communicator when the signal strength indicated by the frequency channel information is less than a prescribed threshold, wherein the switch controller
decides not to change the frequency channel used by the wireless communicator in a case where the acquired travel speed is equal to or more than a predetermined speed threshold, anddecides to change the frequency channel used by the wireless communicator in a case where the acquired travel speed is less than the predetermined speed threshold while the signal strength indicated by the frequency channel information is equal to or more than the prescribed threshold.