Sound output apparatus, sound output control method, vehicle, and locking and unlocking system

1. A sound output apparatus placed in a vehicle having a door that is lockable and unlockable based on a result of communication with mobile terminals, the sound output apparatus comprising:

a sound output controller configured to:

determine, when the door of the vehicle is unlocked based on authentication information for unlocking of the door received from a mobile terminal of the mobile terminals, which one of an owner of the vehicle and a person in charge of delivery possesses the mobile terminal;

notify, when it is determined that the person in charge of delivery possesses the mobile terminal, an area surrounding the vehicle that the vehicle was unlocked by the person in charge of delivery including outputting a first sound from a speaker to the area surrounding the vehicle;

output a second sound, different from the first sound, from the speaker to the area surrounding the vehicle when it is determined that the owner of the vehicle possesses the mobile terminal; and

output a third sound, different from the first and second sounds, from the speaker to the area surrounding the vehicle when it is determined that another person in charge of delivery different from the person in charge of delivery possesses the mobile terminal.

2. The sound output apparatus according to claim 1 , wherein the sound output controller is configured to determine that the person in charge of delivery possesses the mobile terminal when the authentication information is provided with a time length of validity.

3. The sound output apparatus according to claim 1 , wherein

the sound output controller is configured to store a plurality of different types of the mobile terminal in association with corresponding different sounds to be output, and

the sound output controller is configured to output the sounds from the speaker corresponding to a type of the mobile terminal.

4. The sound output apparatus according to claim 3 , wherein each of the different sounds corresponds to a different delivery company.

5. The sound output apparatus according to claim 1 , wherein the sound output controller is configured to output, when the door is unlocked, a sound announcing that the door is unlocked by an authorized person.

6. The sound output apparatus according to claim 5 , wherein the sound announcing that the door is unlocked by the authorized person includes synthetic speech.

7. The sound output apparatus according to claim 1 , wherein the sound output controller is configured to output a loop sound that continuously sounds while the door is open.

8. A vehicle communicable with mobile terminals, the vehicle comprising:

a door;

a first communication circuit configured to receive, from a mobile terminal of the mobile terminals, authentication information for unlocking the door; and

circuitry configured to:

unlock the door based on the authentication information;

determine, when the door is unlocked, which one of an owner of the vehicle and a person in charge of delivery possesses the mobile terminal;

notify, when it is determined that the person in charge of delivery possesses the mobile terminal, an area surrounding the vehicle that the vehicle was unlocked by the person in charge of delivery including outputting a first sound from a speaker to the area surrounding the vehicle;

output a second sound, different from the first sound, from the speaker to the area surrounding the vehicle when it is determined that the owner of the vehicle possesses the mobile terminal; and

output a third sound, different from the first and second sounds, from the speaker to the area surrounding the vehicle when it is determined that another person in charge of delivery different from the person in charge of delivery possesses the mobile terminal.

9. The sound output apparatus according to claim 1 , wherein the sound output controller is configured to determine that the person in charge of delivery possesses the mobile terminal when the authentication information is a onetime key.

10. The sound output apparatus according to claim 1 , wherein the sound output controller is configured to determine which one of the owner of the vehicle and the person in charge of delivery possesses the mobile terminal based upon a unique identifier received with the authentication information.

11. The sound output apparatus according to claim 1 , wherein the person in charge of delivery is not an owner of the vehicle.

12. A sound output control method performed by a sound output controller placed in a vehicle having a door that is lockable and unlockable based on a result of communication with mobile terminals, the sound output control method comprising:

determining, when the door of the vehicle is unlocked based on authentication information for unlocking of the door received from a mobile terminal of the mobile terminals, which one of an owner of the vehicle and a person in charge of delivery possesses the mobile terminal;

notifying, when it is determined that the person in charge of delivery possesses the mobile terminal, an area surrounding the vehicle that the vehicle was unlocked by the person in charge of delivery including outputting a first sound from a speaker to the area surrounding the vehicle;

outputting a second sound, different from the first sound, from the speaker to the area surrounding the vehicle when it is determined that the owner of the vehicle possesses the mobile terminal; and

outputting a third sound, different from the first and second sounds, from the speaker to the area surrounding the vehicle when it is determined that another person in charge of delivery different from the person in charge of delivery possesses the mobile terminal.

13. The vehicle according to claim 8 , wherein

the vehicle includes a plurality of independent regions, and

the authentication information enables one of the plurality of independent regions to be locked and unlocked.

14. A locking and unlocking system comprising:

mobile terminals each including a short-distance communication interface configured to transmit first authentication information through short-distance wireless communication;

a vehicle including:

a door,

a first communication circuit configured to receive the first authentication information from a mobile terminal of the mobile terminals, the first authentication information being information for unlocking the door, and

circuitry configured to:

unlock the door based on a result of collating the first authentication information and second authentication information, the second authentication information being information corresponding to the first authentication information,

determine, when the door is unlocked, which one of an owner of the vehicle and a person in charge of delivery possesses the mobile terminal,

store the second authentication information,

notify, when it is determined that the person in charge of delivery possesses the mobile terminal, an area surrounding the vehicle that the vehicle was unlocked by the person in charge of delivery including outputting a first sound from a speaker to the area surrounding the vehicle, and

output a second sound, different from the first sound, from the speaker to the area surrounding the vehicle when it is determined that the owner of the vehicle possesses the mobile terminal, and

output a third sound, different from the first and second sounds, from the speaker to the area surrounding the vehicle when it is determined that another person in charge of delivery different from the person in charge of delivery possesses the mobile terminal; and

a server apparatus including a second communication circuit configured to:

transmit the first authentication information to the mobile terminal, and

transmit the second authentication information to the vehicle.