Environmental state notification device and environmental state notification method

1 . An environmental state notification device, comprising:

an environment information acquisition unit configured to acquire first environment information data indicating information regarding a surrounding environment of a user, wherein the environment information acquisition unit is attached to the user;

a user state information acquisition unit configured to acquire, by a plurality of sensors, first user state data that indicates a state of the user, wherein

the user state information acquisition unit includes the plurality of sensors, and

the state of the user indicates at least one of a speed or an acceleration of movement of the user;

a communication unit configured to acquire, from an external moving object, second user state data, wherein

the second user state data indicates a second state of the user, and

the external moving object exists in the surrounding environment of the user;

an environmental state recognition unit configured to:

recognize a state of the surrounding environment with respect to the user based on the acquired first environment information data, the acquired first user state data, and the acquired second user state data; and

determine that the user approaches a specific object requiring attention; and

a notification unit configured to notify the user by a stereophonic sound, based on the recognized state of the surrounding environment with respect to the user, wherein

the stereophonic sound is emphasized in a direction from the specific object requiring attention toward the user.

2 . The environmental state notification device according to claim 1 , wherein

the environment information acquisition unit includes a wave sensor, and

the wave sensor is configured to:

receive at least one of an electromagnetic wave or a sound wave from the surrounding environment of the user; and

acquire the first environment information data.

3 . The environmental state notification device according to claim 2 , wherein the wave sensor is further configured to acquire an image of the surrounding environment of the user.

4 . The environmental state notification device according to claim 2 , wherein

the environment information acquisition unit further includes an emission unit configured to emit a detection electromagnetic wave or a detection sound wave, and

the wave sensor is further configured to receive a reflected detection electromagnetic wave or the detection sound wave.

5 . The environmental state notification device according to claim 1 , wherein

the environment information acquisition unit further comprises:

a position information acquisition unit configured to acquire position information of the user; and

a map information collation unit configured to acquire the first environment information data, based on the position information and map information.

6 . The environmental state notification device according to claim 5 , wherein the position information acquisition unit is further configured to acquire the position information of the user from a satellite positioning system.

7 . The environmental state notification device according to claim 1 , wherein

the environmental state recognition unit is further configured to recognize the state of the surrounding environment with respect to the user based on

the first environment information data acquired by the environment information acquisition unit, and

second environment information data transmitted from the external moving object via the communication unit.

8 . The environmental state notification device according to claim 1 , wherein

the environmental state recognition unit is further configured to:

predict a movement course of the user based on the first user state data; and

recognize the state of the surrounding environment with respect to the user based on the predicted movement course of the user.

9 . The environmental state notification device according to claim 1 , wherein

the environmental state recognition unit is further configured to:

acquire a dynamic map of the surrounding environment of the user; and

recognize the state of the surrounding environment with respect to the user, based on the first environment information data and the dynamic map.

10 . The environmental state notification device according to claim 1 , wherein the notification unit is attached to the user.

11 . The environmental state notification device according to claim 10 , wherein the notification unit is further configured to notify the user through at least one of hearing, vision, or tactile sense.

12 . The environmental state notification device according to claim 1 , wherein

the notification unit is further configured to notify a first external device based on the state of the surrounding environment with respect to the user,

the first external device exists in the surrounding environment of the user, and

the first external device is not attached to the user.

13 . The environmental state notification device according to claim 12 , wherein the first external device is a vehicle.

14 . The environmental state notification device according to claim 1 , wherein

the communication unit is further configured to transmit, to a second external device, data indicating the state of the surrounding environment with respect to the user.

15 . An environmental state notification method, comprising:

acquiring, by an environment information acquisition unit, environment information data indicating information regarding a surrounding environment of a user, wherein

the environment information acquisition unit is attached to the user;

acquiring, by a user state information acquisition unit, first user state data using a plurality of sensors, wherein

the first user state data indicates a state of the user,

the user state information acquisition unit includes the plurality of sensors, and

the state of the user indicates at least one of a speed or an acceleration of movement of the user;

acquiring, by a communication unit, second user state data from an external moving object, wherein

the second user state data indicates a second state of the user, and

the external moving object exists in the surrounding environment of the user;

recognizing, by an environmental state recognition unit, a state of the surrounding environment with respect to the user based on the acquired environment information data, the acquired first user state data, and the acquired second user state data;

determining that the user approaches a specific object requiring attention; and

notifying, by a notification unit, the user by a stereophonic sound, based on the recognized state of the surrounding environment with respect to the user, wherein

the stereophonic sound is emphasized in a direction from the specific object requiring attention toward the user.

16 . A non-transitory computer-readable medium having stored thereon, computer-executable instructions which, when executed by a computer, cause the computer to execute operations, the operations comprising:

acquiring, by an environment information acquisition unit, environment information data indicating information regarding a surrounding environment of a user, wherein

the environment information acquisition unit is attached to the user;

acquiring, by a user state information acquisition unit, first user state data using a plurality of sensors, wherein

the first user state data indicates a state of the user,

the user state information acquisition unit includes the plurality of sensors, and

the state of the user indicates at least one of a speed or an acceleration of movement of the user;

acquiring, by a communication unit, second user state data from an external moving object, wherein

the second user state data indicates a second state of the user, and

the external moving object exists in the surrounding environment of the user;

recognizing, by an environmental state recognition unit, a state of the surrounding environment with respect to the user based on the acquired environment information data, the acquired first user state data, and the acquired second user state data;

determining that the user approaches a specific object requiring attention; and

notifying, by a notification unit, the user by a stereophonic sound, based on the recognized state of the surrounding environment with respect to the user, wherein

the stereophonic sound is emphasized in a direction from the specific object requiring attention toward the user.

17 . The environmental state notification device according to claim 1 , further comprising an attachment state detection unit configured to detect an attachment state of the environment information acquisition unit with respect to the user, wherein

the notification unit is further configured to notify the user based on a detection result of the attachment state detection unit.

18 . The environmental state notification device according to claim 1 , wherein

the environmental state recognition unit is further configured to acquire a positional relationship between the specific object requiring attention and the user, and

the notification unit is further configured to notify, based on the acquired positional relationship, the user with the stereophonic sound.

19 . The environmental state notification device according to claim 1 , wherein the emphasized stereophonic sound is a sound that evokes danger.

20 . The environmental state notification device according to claim 1 , wherein the emphasized stereophonic sound is a sound that prompts a reflexive action of the user in a direction away from the specific object requiring attention.