| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide an on-vehicle information device, a communication terminal, an alarm sound output control device, and an alarm sound output control method which can prevent a user from leaving the communication terminal in a vehicle even when the vehicle's engine is operating.SOLUTION: An on-vehicle information device 2 comprises: an engine state acquisition unit 22 which acquires a state of an engine of a vehicle 1; an ACC (Accessory) power source state acquisition unit 23 which acquires a state of an ACC power source provided in the vehicle 1; a door open/closed state acquisition unit 24 which acquires an open/closed state of one or more doors of the vehicle; a sound output unit 25 which outputs an alarm sound; and a control unit 29 which, after a connection authentication unit 211 completes connection authentication of a communication terminal 3, controls output of the alarm sound by the sound output unit 25 on the basis of the engine state acquired by the engine state acquisition unit 22, the ACC power source state acquired by the ACC power source state acquisition unit 23, and the open/closed state of one or more doors acquired by the door open/closed state acquisition unit 24.</p> |
