A user identification system is provided. In the user identification system, an in-vehicle apparatus specifies a position of a vehicular portable device with reference to a vehicle and determines whether the vehicular portable device exists in a predetermined identification area. Based on determining that the vehicular portable device exists in the identification area, the in-vehicle apparatus transmits an instruction signal instructing the vehicular portable device to specify a driver terminal. Based on reception signal strength detected during a time period determined by a time point of receipt of the instruction signal, the vehicular portable device determines the driver terminal.
USER IDENTIFICATION SYSTEM AND VEHICULAR PORTABLE DEVICE
2018-02-22
Patent
Elektronische Ressource
Englisch
IPC: | G08G Anlagen zur Steuerung, Regelung oder Überwachung des Verkehrs , TRAFFIC CONTROL SYSTEMS / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR / G01S RADIO DIRECTION-FINDING , Funkpeilung / H04B TRANSMISSION , Übertragung |
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