System, information processing apparatus, and non-transitory storage medium

1. A system, comprising:

a first vehicle configured to output, to a server, information regarding illuminance of light incident on the first vehicle that is associated with information regarding a traveling environment, the information regarding the traveling environment of the first vehicle including information regarding a location of the first vehicle, information regarding date/time on which the information regarding the location of the first vehicle is acquired, and information regarding weather corresponding to the location of the first vehicle;

a second vehicle configured to output information regarding a traveling environment to the server, the information regarding the traveling environment of the second vehicle including information regarding a location of the second vehicle, information regarding a traveling route of the second vehicle, information regarding date/time on which the information regarding the location of the second vehicle is acquired, and information regarding weather corresponding to the location of the second vehicle; and

the server comprising:

a memory; and

a controller configured to:

acquire, from the first vehicle, the information regarding illuminance associated with the information regarding the traveling environment of the first vehicle;

store, in the memory, the information regarding illuminance associated with the information regarding the traveling environment of the first vehicle;

extract, based on the information regarding illuminance of the first vehicle, a sudden-change point that is a point at which a change amount of the illuminance of the light incident on the first vehicle exceeds a prescribed value;

generate, based on the information regarding the traveling environment of the first vehicle, notification information regarding sudden-change point about the sudden-change point, the notification information regarding sudden-change point including a location of the sudden-change point, a travelling direction when the change amount of the illuminance exceeds the prescribed value at the sudden-change point, date/time when the change amount of the illuminance exceeds the prescribed value at the sudden-change point, and weather when the change amount of the illuminance exceeds the prescribed value at the sudden-change point;

store, in the memory, the notification information regarding sudden-change point;

after the notification information regarding sudden-change point is stored in the memory, acquire, from the second vehicle, the information regarding the traveling environment of the second vehicle;

extract, from the memory based on the information regarding the traveling environment of the second vehicle, the notification information regarding sudden-change point about the sudden-change point located on the travelling route of the second vehicle, the extracted notification information regarding sudden-change point corresponding to a travelling direction of the second vehicle to be predicted when the second vehicle passes through the sudden-change point, a travelling day/time of the second vehicle to be predicted when the second vehicle passes through the sudden-change point, and weather on the traveling route of the second vehicle; and

output, the notification information regarding sudden-change point extracted from the memory to the second vehicle.

2. The system according to claim 1 , wherein the second vehicle comprises:

a changer configured to change illuminance inside the second vehicle; and

an adjuster configured to control the changer based on the information regarding the sudden-change point outputted by the server.

3. The system according to claim 2 , wherein the adjuster controls the changer to change the illuminance inside the second vehicle in a prescribed area before the second vehicle passes through the sudden-change point, and controls the changer to return to a state of the changer before the second vehicle enters the prescribed area after the second vehicle passes through the sudden-change point.

4. The system according to claim 3 , wherein, in a case where the change amount at the sudden-change point is a change amount on an increasing side, the adjuster controls the changer such that the illuminance inside the second vehicle before the second vehicle passes through the sudden-change point in the prescribed area becomes higher than the illuminance before the second vehicle enters the prescribed area.

5. The system according to claim 2 , wherein, in a case where the change amount at the sudden-change point is a change amount on an increasing side, the adjuster controls the changer such that the illuminance inside the second vehicle gradually increases before the second vehicle passes through the sudden-change point.

6. The system according to claim 2 , wherein the changer includes an interior light configured to illuminate inside the second vehicle.

7. The system according to claim 6 , wherein, in a case where the change amount at the sudden-change point is a change amount on an increasing side, the adjuster turns on the interior light before the second vehicle passes through the sudden-change point.

8. The system according to claim 6 , wherein the adjuster turns off the interior light after the second vehicle passes through the sudden-change point.

9. The system according to claim 3 , wherein, in a case where the change amount at the sudden-change point is a change amount on a decreasing side, the adjuster controls the changer such that the illuminance inside the second vehicle before the second vehicle passes through the sudden-change point in the prescribed area becomes lower than the illuminance before the second vehicle enters the prescribed area.

10. The system according to claim 2 , wherein, in a case where the change amount at the sudden-change point is a change amount on a decreasing side, the adjuster controls the changer such that the illuminance inside the second vehicle gradually decreases before the second vehicle passes through the sudden-change point.

11. The system according to claim 2 , wherein the changer includes light-control glass.

12. The system according to claim 11 , wherein, in a case where the change amount at the sudden-change point is a change amount on a decreasing side, the adjuster controls transmittance of the light-control glass before the second vehicle passes through the sudden-change point to be smaller than the transmittance after the second vehicle passes through the sudden-change point.

13. The system according to claim 11 , wherein the adjuster maximizes transmittance of the light-control glass after the second vehicle passes through the sudden-change point.

14. The system according to claim 1 , wherein the second vehicle comprises an output unit configured to output the information regarding the sudden-change point upon acquiring the information regarding the sudden-change point.

15. The system according to claim 1 , wherein the first vehicle comprises a photodetector configured to detect the light incident on the first vehicle.

16. An information processing apparatus comprising:

a memory; and

a controller configured to:

acquire, from a first vehicle, information regarding illuminance of light incident on the first vehicle associated with information regarding a traveling environment, the information regarding the traveling environment of the first vehicle including information regarding a location of the first vehicle, information regarding date/time on which the information regarding the location of the first vehicle is acquired, and information regarding weather corresponding to the location of the first vehicle;

store, in the memory, the information regarding illuminance associated with the information regarding the traveling environment of the first vehicle;

extract, based on the information regarding illuminance of the first vehicle, a sudden-change point that is a point at which a change amount of the illuminance of the light incident on the first vehicle exceeds a prescribed value;

generate, based on the information regarding the traveling environment of the first vehicle, notification information regarding sudden-change point about the sudden-change point, the notification information regarding sudden-change point including a location of the sudden-change point, a travelling direction when the change amount of the illuminance exceeds the prescribed value at the sudden-change point, date/time when the change amount of the illuminance exceeds the prescribed value at the sudden-change point, and weather when the change amount of the illuminance exceeds the prescribed value at the sudden-change point;

store, in the memory, the notification information regarding sudden-change point;

after the notification information regarding sudden-change point is stored in the memory, acquire, from a second vehicle, information regarding a traveling environment, the information regarding the traveling environment of the second vehicle including information regarding a location of the second vehicle, information regarding a traveling route of the second vehicle, information regarding date/time on which the information regarding the location of the second vehicle is acquired, and information regarding weather corresponding to the location of the second vehicle;

extract, from the memory based on the information regarding the traveling environment of the second vehicle, the notification information regarding sudden-change point about the sudden-change point located on the travelling route of the second vehicle, the extracted notification information regarding sudden-change point corresponding to a travelling direction of the second vehicle to be predicted when the second vehicle passes through the sudden-change point, a travelling day/time of the second vehicle to be predicted when the second vehicle passes through the sudden-change point, and weather on the traveling route of the second vehicle; and

output, the notification information regarding sudden-change point extracted from the memory to the second vehicle.

17. A non-transitory computer-readable storage medium comprising a program stored therein, the program causing a computer to:

acquire, from a first vehicle, information regarding illuminance of light incident on the first vehicle associated with information regarding a traveling environment, the information regarding the traveling environment of the first vehicle including information regarding a location of the first vehicle, information regarding date/time on which the information regarding the location of the first vehicle is acquired, and information regarding weather corresponding to the location of the first vehicle;

store, in a memory of the computer, the information regarding illuminance associated with the information regarding the traveling environment of the first vehicle;

extract, based on the information regarding illuminance of the first vehicle, a sudden-change point that is a point at which a change amount of the illuminance of the light incident on the first vehicle exceeds a prescribed value;

generate, based on the information regarding the traveling environment of the first vehicle, notification information regarding sudden-change point about the sudden-change point, the notification information regarding sudden-change point including a location of the sudden-change point, a travelling direction when the change amount of the illuminance exceeds the prescribed value at the sudden-change point, date/time when the change amount of the illuminance exceeds the prescribed value at the sudden-change point, and weather when the change amount of the illuminance exceeds the prescribed value at the sudden-change point;

store, in the memory, the notification information regarding sudden-change point;

after the notification information regarding sudden-change point is stored in the memory, acquire, from a second vehicle, information regarding a traveling environment, the information regarding the traveling environment of the second vehicle including information regarding a location of the second vehicle, information regarding a traveling route of the second vehicle, information regarding date/time on which the information regarding the location of the second vehicle is acquired, and information regarding weather corresponding to the location of the second vehicle;

extract, from the memory based on the information regarding the traveling environment of the second vehicle, the notification information regarding sudden-change point about the sudden-change point located on the travelling route of the second vehicle, the extracted notification information regarding sudden-change point corresponding to a travelling direction of the second vehicle to be predicted when the second vehicle passes through the sudden-change point, a travelling day/time of the second vehicle to be predicted when the second vehicle passes through the sudden-change point, and weather on the traveling route of the second vehicle; and

output, the notification information regarding sudden-change point extracted from the memory to the second vehicle.