| 摘要 |
As regards a mobile terminal brought into a vehicle interior of a vehicle, a position of the mobile terminal in the vehicle interior is specified. In a position specification system that includes a mobile terminal and an information association apparatus configured to enable wireless communication with each other, the system being configured so that the information association apparatus specifies a position of the mobile terminal in a vehicle interior when the mobile terminal brought into the vehicle interior of a vehicle detects signal sounds produced from speakers provided in the vehicle, the mobile terminal includes: means configured to store detection information concerning times at which the signal sounds were detected; and means configured to transmit a first notification signal including the detection information, and the information association apparatus includes: means configured to enable each of the plurality of speakers to transmit the signal sound at intervals of a predetermined time width; and means configured to specify a position of the mobile terminal in the vehicle interior with the use of relative distances of a plurality of sound sources of the signal sounds and the mobile terminal calculated based on intervals of times at which the signal sounds were detected and the predetermined time width and with the use of information concerning the speakers. |
