A communication device (201) receives internal electric waves (302) emitted toward inside a vehicle (100) by an internal communicator (102) mounted in the vehicle (100), and receives external electric waves (303) emitted toward outside the vehicle (100) by an external communicator (103) mounted in the vehicle (100). The communication device (201) determines whether the communication device (201) is inside the vehicle (100) or outside the vehicle (100), from a reception intensity of the received internal electric waves (302) and from a reception intensity of the received external electric waves (303).
通信装置、通信システム、通信方法及び通信プログラム
2023-08-14
Patent
Electronic Resource
Japanese
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / E05B LOCKS , Schlösser / H04M TELEPHONIC COMMUNICATION , Fernsprechverkehr / H04W WIRELESS COMMUNICATION NETWORKS , Drahtlose Kommunikationsnetze |