Notification device, notification method, and program
A notification device capable of providing an alarm notification with respect to a person who is likely to jump into a travel route of a vehicle at an appropriate timing is provided. The notification device provided in the vehicle acquires attribute information about a person located within a range of a predetermined distance from the vehicle. The notification device classifies the person based on the attribute information. The notification device adjusts a timing of a notification for the person based on a classification result.
1 . A notification device comprising:
a memory that stores a program; and
a processor that, upon execution of the program, is configured to operate as:
an attribute acquisition part configured to acquire attribute information about a person located within a range of a predetermined distance from a moving object;
a classification part configured to classify the person based on the attribute information;
an adjustment part configured to adjust a timing of a notification for the person based on a classification result;
a notification part configured to facilitate an output, at a user device, of the notification in the form of an alarm,
a moving state estimation part configured to estimate a moving direction and a moving speed of the person; and
a travel route recognition part configured to recognize an intersection status of a travel route along which the moving object travels associated with another travel route,
wherein the adjustment part further adjusts the timing of the notification for the person based on the moving direction and the moving speed of the person,
wherein the adjustment part adjusts the timing of the notification for the person based on the intersection status,
wherein the adjustment part adjusts the timing of the notification based on a combination of an age range of the person, the moving direction of the person relative to the intersection status, and the moving speed of the person,
wherein the adjustment part adjusts the timing so that an earliest notification is provided when it is difficult to acquire the attribute information within a predetermined period of time from a timing when the person has been recognized, and
wherein the adjustment part identifies a collision margin time indicating a period of time from a time when the person moves to the travel route along which the moving object travels to the time when the person collides with the moving object according to a plurality of ages indicated in the classification result for the person and adjusts the timing of the notification to a timing when the collision margin time can be ensured,
wherein the attribute information includes information about at least an age of the person,
wherein the classification part outputs the classification result related to the age of the person based on the age,
the classification part classifies the person into one of at least three age ranges based on the age of the person, and
the adjustment part provides the notification at an earlier time when the person is in a youngest age range, compared to the other age ranges.
2 . A notification method comprising:
acquiring, by a computer comprising a memory and a processor, attribute information about a person located within a range of a predetermined distance from a moving object;
classifying, by the computer, the person based on the attribute information which includes information about at least an age of the person;
adjusting, by the computer, a timing of a notification for the person based on a classification result;
outputting the classification result related to the age of the person based on the age;
classifying the person into one of at least three age ranges based on the age of the person;
providing the notification at an earlier time when the person is in a youngest age range, compared to the other age ranges;
facilitating, by the computer, an output, at a user device, of the notification in the form of an alarm;
estimating, by the computer, a moving direction and a moving speed of the person; and
recognizing, by the computer, an intersection status of a travel route along which the moving object travels associated with another travel route,
wherein the computer further adjusts the timing of the notification for the person based on the moving direction and the moving speed of the person,
the computer adjusts the timing of the notification for the person based on the intersection status,
the computer adjusts the timing of the notification based on a combination of an age range of the person, the moving direction of the person relative to the intersection status, and the moving speed of the person,
the computer adjusts the timing so that an earliest notification is provided when it is difficult to acquire the attribute information within a predetermined period of time from a timing when the person has been recognized, and
the computer identifies a collision margin time indicating a period of time from a time when the person moves to the travel route along which the moving object travels to the time when the person collides with the moving object according to a plurality of ages indicated in the classification result for the person and adjusts the timing of the notification to a timing when the collision margin time can be ensured.
3 . The notification device according to claim 1 , wherein the processor is further configured to operate as:
a person recognition part configured to recognize the person; and
an attribute estimation part configured to estimate the attribute information of the person based on a result of recognizing the person.
4 . A non-transitory machine-readable storage medium comprising a program for causing a computer to execute processes of:
acquiring attribute information about a person located within a range of a predetermined distance from a moving object;
classifying the person based on the attribute information which includes information about at least an age of the person;
adjusting a timing of a notification for the person based on a classification result;
outputting the classification result related to the age of the person based on the age;
classifying the person into one of at least three age ranges based on the age of the person;
providing the notification at an earlier time when the person is in a youngest age range, compared to the other age ranges;
facilitating an output, at a user device, of the notification in the form of an alarm;
estimating a moving direction and a moving speed of the person; and
recognizing an intersection status of a travel route along which the moving object travels associated with another travel route,
wherein the computer further adjusts the timing of the notification for the person based on the moving direction and the moving speed of the person,
the computer adjusts the timing of the notification for the person based on the intersection status,
the computer adjusts the timing of the notification based on a combination of an age range of the person, the moving direction of the person relative to the intersection status, and the moving speed of the person,
the computer adjusts the timing so that an earliest notification is provided when it is difficult to acquire the attribute information within a predetermined period of time from a timing when the person has been recognized, and
the computer identifies a collision margin time indicating a period of time from a time when the person moves to the travel route along which the moving object travels to the time when the person collides with the moving object according to a plurality of ages indicated in the classification result for the person and adjusts the timing of the notification to a timing when the collision margin time can be ensured.
5 . The notification device according to claim 1 , wherein the processor is further configured to operate as the moving state estimation part configured to detect the moving speed of the person,
wherein the adjustment part further adjusts the timing of the notification for the person based on the moving speed of the person.
6 . The notification device according to claim 1 , wherein the adjustment part identifies a collision margin time indicating a period of time from the time when the person moves to the travel route along which the moving object travels to the time when the person collides with the moving object based on an intersection status of the travel route associated with the other travel route and a location of the person and adjusts the timing of the notification to the timing when the collision margin time can be ensured.
7 . The notification device according to claim 1 , wherein the processor is further configured to operate as the travel route recognition part configured to recognize intersection status of the travel route along which the moving object travels associated with the another travel route,
wherein the adjustment part adjusts the timing of the notification for the person based on the intersection status and a location of the person.
8 . The notification device according to claim 7 , wherein the adjustment part identifies a collision margin time indicating a period of time from the time when the person moves to the travel route along which the moving object travels to the time when the person collides with the moving object based on intersection status of the travel route associated with the other travel route and the location of the person and adjusts the timing of the notification to the timing when the collision margin time can be ensured.
9 . The notification device according to claim 7 , wherein the adjustment part adjusts the timing so that the earliest notification is provided when it is difficult to recognize the intersection status of the travel route associated with the other travel route.
10 . The notification device according to claim 5 , wherein the adjustment part adjusts the timing so that the earliest notification is provided when it is difficult to detect the moving speed of the person.
11 . The notification device according to claim 9 , wherein the adjustment part identifies a collision margin time indicating a period of time from the time when the person moves to the travel route along which the moving object travels to the time when the person collides with the moving object based on intersection status of the travel route associated with the other travel route and the location of the person and adjusts the timing of the notification to the timing when the collision margin time can be ensured.
12 . The notification device according to claim 1 , wherein the adjustment part identifies a collision margin time indicating a period of time from the time when the person moves to the travel route along which the moving object travels to the time when the person collides with the moving object based on a result of classifying the moving speed of the person and adjusts the timing of the notification to the timing when the collision margin time can be ensured.