JP7699678B2 - Notification System - Google Patents

Description

The present invention relates to a notification system.
This application claims priority based on Japanese Patent Application No. 2018-111419 filed in Japan on June 11, 2018, Japanese Patent Application No. 2018-146317 filed in Japan on August 2, 2018, and Japanese Patent Application No. 2019-065842 filed in Japan on March 29, 2019, the contents of which are incorporated herein by reference.

Conventionally, a system is known that monitors the safety of children on their way to and from school, etc., using a camera, speaker, and transceiver attached to a backpack carried by the child, and a terminal device equipped with a transceiver unit, monitor, and microphone (see, for example, Patent Document 1).

Japanese Patent Application Publication No. 2006-285749

The above-mentioned conventional system captures an image of the area in front of the child using a camera attached to a backpack, and transmits the captured image via a communication network to a terminal device operated by the child's guardian, etc. Also, the voice of the guardian, etc., picked up by a microphone in the terminal device, is transmitted via the communication network and output from a speaker on the backpack.
However, with a camera, speaker and transceiver attached to a backpack, if a child's guardian or other person is not monitoring the terminal device, the child cannot be alerted even in dangerous places such as intersections and road crossings, and the device cannot provide proper support for watching over children.

The present invention was made in consideration of the above problems, and aims to provide a notification system that can notify moving people at a specified location to alert them.

(1): A notification system according to one aspect of the present invention includes a terminal carried by a moving person, a storage unit provided in the terminal or a server capable of communicating with the terminal, which stores a set position that is a pre-set geographical position, and a notification unit that notifies the approach of the terminal to the set position at a position spaced a predetermined distance from the set position.

(2): In the aspect of (1) above, the notification unit may increase the amount of notification as the terminal approaches the set position from the remote position.

(3): In the above aspect (1) or (2), the notification unit may decrease the amount of notification as the terminal moves away from the set position after the notification starts.

(4): In any one of the above aspects (1) to (3), the terminal or the server may include a motion determination unit that determines a predetermined motion of the moving person, and the notification unit may stop the notification if the motion determination unit determines the predetermined motion after the notification has started.

(5): In any one of the above aspects (1) to (4), the notification unit may stop the notification when the terminal moves a predetermined distance away from the set position after the notification has started.

(6): In any one of the above aspects (1) to (5), the terminal or the server may include a location acquisition unit that acquires the current location of the terminal, and a location determination unit that determines, based on the current location, that the terminal is located within a notification area that is closer to the set location than the remote location.

(7): In the aspect of (6) above, the position determination unit may determine that the terminal is located within the notification area based on the straight-line distance between the current position and the set position.

(8): In the above aspect (6) or (7), the terminal or the server may include a speed acquisition unit that acquires a moving speed of the terminal, and the notification unit may include a notification correction unit that corrects the notification based on the moving speed.

(9): In the aspect of (8) above, the notification correction unit may correct the notification so that the notification starts earlier when the moving speed is faster than when the moving speed is slower.

(10): In the aspect of (8) above, the notification correction unit may correct the amount of notification to be increased as the moving speed is faster compared to when the moving speed is slow.

(11): In any one of the above aspects (1) to (5), the terminal or the server may include a speed acquisition unit that acquires a moving speed of the terminal, and a position determination unit that determines that the terminal has reached the remote position based on the moving speed.

(12): In the aspect of (11) above, the position determination unit may determine that the remote position has been reached based on the arrival time to the set position calculated based on the moving speed.

(13): In any one of the above aspects (1) to (12), the set position may be set at a specific position on a road along which the traveler is traveling where a danger to the traveler may occur.

(14): In the aspect of (13) above, the road may include an intersection at which the road intersects, and the setting position may be set at the intersection.

(15): In the aspect of (14) above, the road may include a roadway on which vehicles travel and a sidewalk separated from the roadway, and the setting position may be set on the sidewalk at the intersection.

(16): In any one of the above aspects (13) to (15), the set position may be set on a route between the starting point and the end point of the movement of the person moving based on input information regarding the starting point and the end point of the movement of the person moving.

(17): In the aspect of (16) above, the terminal or the server may include a position setting unit that sets the set position on the route based on the starting point and the end point of the movement.

(18): In any one of the above aspects (13) to (15), the setting position may be set based on input information regarding a position designation for the terminal or another terminal different from the terminal.

(19): In the aspect of (18) above, the input information may indicate a position on a map including a road area and a non-road area, and a position correction unit may be provided that corrects the input information to an adjacent road area when the input information is located in the non-road area.

(20): In the aspect of (19) above, the road area includes a roadway area and a sidewalk area, and when the input information is located in the non-road area or the roadway area, the position correction unit may correct the input information to the adjacent sidewalk area.

(21): In any one of the above (1) to (20), the terminal or the server includes a motion judgment unit that judges a predetermined motion of the moving person, and the terminal includes an output unit that outputs a judgment of the motion judgment unit, and the output unit outputs the judgment to the outside of the terminal, but may not output when the notification is being made.

(22): In any one of the above (1) to (20), the terminal or the server includes a motion judgment unit that judges a predetermined motion of the mover, and the terminal includes an output unit that outputs the judgment of the motion judgment unit, and the output unit outputs the judgment to the outside of the terminal, and may not output when the mover is in a position closer to the set position than the separated position.

(23): In the above aspect (2) or (3), the notification unit may change the amount of notification in a stepwise manner in response to at least one of the approach and the departure of the terminal from the set position.

(24): In the above aspect (2) or (3), the notification unit may smoothly change the amount of notification in response to at least one of the approach and the departure of the terminal from the set position.

(25): In the above aspect (2) or (3), the notification unit may change the amount of notification asymmetrically with respect to the set position on both the approaching side and the moving away side of the terminal with respect to the set position.

(26): In the aspect of (25) above, the notification unit may relatively increase the degree of the tendency for the amount of notifications to decrease on the side of the terminal moving away from the set position compared to the degree of the tendency for the amount of notifications to increase on the side of the terminal moving closer to the set position.

(27): In the aspect of (25) above, the notification unit may relatively make the distance between the stop position of the notification and the setting position on the farther side of the terminal from the setting position larger than the distance between the start position of the notification and the setting position on the closer side of the terminal from the setting position.

(28): In the aspect of (27) above, the notification unit may change the amount of notification in multiple steps on the side where the terminal approaches the set position, and may change the amount of notification in a single step on the side where the terminal moves away from the set position.

(29): In any one of the above aspects (1) to (28), the moving person may be a pedestrian.

(30): In the above embodiment (29), the pedestrian may be a child.

(31): In any one of the above aspects (1) to (30), the terminal may be placed in the traveler's belongings.

(32): In the above embodiment (31), the item may be a shoulder bag.

(33): In the above embodiment (32), the shoulder bag may be a backpack.

According to the above (1), by providing an alarm unit that notifies the approach of the set position at a position spaced a predetermined distance from the set position, it is possible to make the traveler aware in advance of reaching the set position.
In the above case of (2), by increasing the amount of notification as the user approaches the set position, the user can be made aware that he or she is gradually approaching the set position.
In the above case of (3), by decreasing the amount of notification as the user moves away from the set position, the user can be made aware that he or she is gradually moving away from the set position.

In the case of (4) above, it is possible to make the mover recognize that the execution of the required predetermined action at the set position has been completed, and it is also possible to prevent excessive notifications from being given.
In the case of (5) above, excessive notifications can be prevented from being made when the vehicle moves away from the set position by a specified distance or more, and notifications can be prevented from being cut off within a specified distance from the set position.

In the case of (6) above, by determining that the vehicle is located within the notification area based on the current position, the accuracy of the determination can be improved and it can be more accurately determined that the vehicle is approaching the set position.
In the above case (7), the setting of the notification area can be prevented from becoming complicated, and the judgment process can be prevented from becoming complicated, for example, by setting a circular area in accordance with the specification of an appropriate point.
In the above case (8), a more appropriate notification timing can be set according to the moving speed of the terminal.
In the above case (9), delay in the notification timing can be suppressed.
In the above case (10), it is possible to prevent delays in the traveler's understanding of the set position.

In the case of (11) above, even if the position of the terminal cannot be directly ascertained, it is possible to properly determine whether the terminal has reached the remote position based on the moving speed of the terminal.
In the case of (12) above, even if the location of the terminal cannot be directly ascertained, it is possible to improve the accuracy of the determination based on the arrival time to the set location.

In the above case (13), the traveler can be made aware of dangers on the road.
In the above case (14), the traveler can be made aware of the traffic dangers on the road.
In the above case (15), it is possible to prevent a traveler from straying from the sidewalk onto the roadway.
In the above case of (16), by setting a set position on the travel route of the traveler, the traveler can be made aware of dangers on the travel route.
In the above case (17), it is possible to easily assist the user in setting the setting position.

In the above case of (18), direct designation of the setting position by the user or the like can be easily assisted.
In the above case of (19), it is possible to prevent a moving person from straying from a road into a non-road area.
In the above case (20), it is possible to prevent a traveler from straying from the sidewalk onto the roadway.

In the case of (21) above, it is possible to prevent the notification from being buried due to the output of the output unit interfering with the notification.
In the case of (22) above, it is possible to prevent the notification of approaching the set position from being drowned out by the output of the output unit interfering with the notification.

In the above case (23), the traveler can clearly recognize the approach or departure from the set position.
In the above case of (24), the moving person can be made aware of the continuous change in the approach or departure from the set position.
In the case of (25) above, appropriate notifications can be given separately for each of approach and departure from the set position.

In the case of (26) above, excessive notifications on the far side from the set position can be suppressed.
In the case of (27) above, by making it difficult to stop a currently-executing notification, it is possible to suppress the occurrence of hunting (uncontrollable fluctuations) in which the start and stop of notification is frequently repeated.
In the above case (28), the moving person can be made to clearly recognize that the notification has stopped.

In the case of (29) above, the pedestrian can be made aware in advance of arriving at the set position.
In the above case (30), appropriate notification can be given to the child.
In the above case (31), it is possible to prevent the traveler from forgetting to carry the terminal with him/her.
In the above case of (32), by disposing the terminal near the shoulder of the moving person, the moving person can easily recognize the notification.
In the above case of (33), by placing the terminal around the shoulders and back of the traveler, it is possible to prevent the terminal from interfering with various movements of the traveler and to allow the traveler to easily recognize notifications.

1 is a diagram illustrating an example of a configuration of an information communication system according to an embodiment of the present invention. FIG. 1 is a diagram showing an example of a usage scene of an information communication system according to an embodiment of the present invention. FIG. 2 is a block diagram showing an example of a configuration of a first mobile terminal according to the embodiment of the present invention. FIG. 2 is a block diagram showing an example of a configuration of a second mobile terminal according to an embodiment of the present invention. 11 is a flowchart of an example of a processing procedure in which a data center transmits first mobile terminal location information to a second mobile terminal according to an embodiment of the present invention. 11 is a diagram showing an example of first mobile terminal location information displayed on a display unit of a second mobile terminal according to an embodiment of the present invention; FIG. 13 is a flowchart of an example of a processing procedure in which a data center according to an embodiment of the present invention transmits a danger notification to a second mobile terminal and a third mobile terminal. 10 is a flowchart of an example of a processing procedure when the first mobile terminal according to the embodiment of the present invention receives danger information. 10 is a flowchart of an example of a processing procedure when the second mobile terminal according to the embodiment of the present invention receives danger information. 11 is a diagram showing an example of first portable terminal location information including a warning image displayed on a display unit of a second portable terminal according to an embodiment of the present invention; FIG. FIG. 11 is a diagram illustrating an example of main operations of an information communication system according to a first modified example of an embodiment of the present invention. FIG. 1 is a diagram illustrating an example of a configuration of an information communication system according to a first modified example of an embodiment of the present invention. 13A to 13C are diagrams illustrating examples of predetermined positions, predetermined actions, and scores according to a first modified example of the embodiment of the present invention. 13 is a flowchart of an example of a processing procedure performed by a data center according to a first modified example of the embodiment of the present invention. 13 is a flowchart of an example of a processing procedure performed by a second mobile terminal according to a first modified example of the embodiment of the present invention. 13 is an example of an image of information including a score displayed on a display unit of a second mobile terminal according to a first modified example of an embodiment of the present invention. 13 is a flowchart of an example of a processing procedure of a behavior analysis method for pausing at a predetermined position according to a first modified example of the embodiment of the present invention. 13 is a flowchart of an example of a processing procedure of a method for analyzing a movement of checking left and right at a predetermined position according to a first modified example of the embodiment of the present invention. 13 is a flowchart of an example of a processing procedure of a motion analysis method for a hand raising motion in a predetermined position according to a first modified example of the embodiment of the present invention. FIG. 11 is a diagram illustrating an example of a configuration of an information communication system according to a second modified example of an embodiment of the present invention. FIG. 13 is a diagram illustrating a start timing of notification according to a second modified example of the embodiment of the present invention. 13 is a flowchart illustrating an example of a process of a notification unit according to a second modified example of the embodiment of the present invention. 23 is a flowchart showing details of a geographical position approach notification process in step S104 shown in FIG. 22. FIG. 13 is a diagram illustrating an example of a configuration of a first mobile terminal device according to a third modified example of an embodiment of the present invention. FIG. 13 is a diagram illustrating a start timing of notification according to a third modified example of the embodiment of the present invention. 13 is a flowchart illustrating an example of processing by a proximity determination unit and a notification unit according to a third modified example of an embodiment of the present invention. 27 is a flowchart showing details of the object approach notification process in step S304 shown in FIG. 26. FIG. 13 is a diagram illustrating an example of a configuration of a first mobile terminal according to a fourth modified example of the embodiment of the present invention. FIG. 13 is a diagram illustrating a timing for performing a recognition process for a predetermined action according to a fourth modified example of the embodiment of the present invention. 13 is a flowchart illustrating an example of a process for stopping notification by a notification unit according to a fourth modified example of an embodiment of the present invention. FIG. 13 is a diagram illustrating an example of an operation according to a position of a first mobile terminal according to a fourth modified example of the embodiment of the present invention. FIG. 11 is a diagram illustrating an example of timing for changing an amount of notification according to second to fourth modified examples of the embodiment of the present invention. FIG. 13 is a diagram illustrating an example of a correspondence relationship between the notification amount and the change timing of the notification amount according to second to fourth modified examples of the embodiment of the present invention. 13A to 13C are diagrams illustrating examples of notification amounts according to second to fourth modified examples of the embodiment of the present invention. FIG. 13 is a diagram illustrating an example of a correspondence relationship between the notification amount and the change timing of the notification amount according to second to fourth modified examples of the embodiment of the present invention. FIG. 13 is a diagram illustrating an example of a correspondence relationship between the notification amount and the change timing of the notification amount according to second to fourth modified examples of the embodiment of the present invention. FIG. 13 is a diagram illustrating an example of a correspondence relationship between the notification amount and the change timing of the notification amount according to second to fourth modified examples of the embodiment of the present invention. FIG. 11 is a diagram illustrating an example of a geographical position according to a second modification to a fourth modification of the embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a notification system according to the present invention will now be described with reference to the drawings.
The notification system of the present invention is, for example, an information communication system 1 according to an embodiment.
<Configuration example of information communication system 1>
Fig. 1 is a diagram showing an example of the configuration of an information communication system 1 according to the present embodiment. As shown in Fig. 1, the information communication system 1 includes a first mobile terminal 2 (first terminal), a second mobile terminal 3 (second terminal), a data center 4 (center), and a server 5. The first mobile terminal 2, the second mobile terminal 3, the data center 4, and the server 5 are connected to each other via a network 6.
The network 6 is, for example, a mobile communication network. The mobile communication network is, for example, a fourth generation mobile communication network or a fifth generation mobile communication network. The network 6 includes base stations and the like.

The first mobile terminal 2 is a terminal carried by a person (e.g., a child or other young person) who is the object of monitoring. The first mobile terminal 2 is a robot equipped with a communication function. The first mobile terminal 2 transmits at least one of location information, information on pedestrians in the same group, information on pedestrians in the vicinity, and vehicle information to the data center 4 via the network 6. The first mobile terminal 2 receives at least one of traffic information, messages, and emergency information transmitted by the data center 4 via the network 6.
The configuration of the first mobile terminal 2 will be described later. The same group pedestrian information is, for example, information indicating pedestrians of the same group who are commuting to or from school together. The surrounding pedestrian information is information indicating pedestrians walking around the carrier. The vehicle information is information on vehicles on the road on which the user is walking.

The second mobile terminal 3 is a terminal carried by the guardian of the wearer (e.g., a child or other young person) who is the object of monitoring. The second mobile terminal 3 is, for example, a smartphone, a tablet terminal, or a smartwatch. The second mobile terminal 3 receives, via the network 6, first mobile terminal location information regarding the location of the first mobile terminal 2 transmitted by the data center 4. The first mobile terminal location information is image information. The configuration of the second mobile terminal 3 will be described later.

The data center 4 includes a communication unit 41 , a control unit 42 , a model storage unit 43 , and a storage unit 44 .
The communication unit 41 outputs location information, same group pedestrian information, surrounding pedestrian information, vehicle information, and the like received from the first portable terminal 2 via the network 6 to the control unit 42. The communication unit 41 outputs disaster information, suspicious person information, emergency information, and the like received from the server 5 via the network 6 to the control unit 42. The communication unit 41 transmits a danger notification output by the control unit 42 to the first portable terminal 2 via the network 6. The communication unit 41 transmits traffic information, messages, emergency information, and the like output by the control unit 42 to the first portable terminal 2 via the network 6.
The communication unit 41 transmits the first portable terminal location information, emergency notification, voice message, and the like output by the control unit 42 to the second portable terminal 3 via the network 6. In addition, the communication unit 41 receives a signal of the detection value of the acceleration sensor 28 from the first portable terminal 2, and outputs the received signal to the control unit 42.

The control unit 42 stores the location information received from the first portable terminal 2 in the storage unit 44. The control unit 42 stores the suspicious person information received from the server 5 in the storage unit 44. The suspicious person information includes the location information of the suspicious person and the time of appearance, etc.
The control unit 42 generates a movement trajectory of the person who carries the first portable terminal 2 based on the position information and map information stored in the memory unit 44. The control unit 42 generates information that combines the generated movement trajectory with the map information as first portable terminal position information. The control unit 42 outputs the generated first portable terminal position information to the communication unit 41.
The control unit 42 sets danger spots based on the location information and vehicle information received from the first mobile terminal 2, the emergency information, disaster information, and suspicious person information received from the server 5, the model information stored in the model storage unit 43, and the map information and location information stored in the storage unit 44, and stores information indicating the set danger spots in the storage unit 44. Note that danger spots are specific locations where danger may occur, such as locations where disasters have occurred, locations where there are many traffic accidents, and locations where suspicious people have appeared. The control unit 42 generates a danger notification based on the map information and information indicating the danger spots stored in the storage unit 44, and the received location information, and outputs the generated danger notification to the communication unit 41.

The control unit 42 generates at least one of traffic information, a message, and emergency information based on the location information and vehicle information received from the first mobile terminal 2, the emergency information received from the server 5, the model information stored in the model storage unit 43, and the map information and location information stored in the storage unit 44. The message is a voice signal, and is obtained by converting text information into a voice signal using a language model or a dictionary in a well-known manner. The control unit 42 outputs the generated traffic information, message, and emergency information to the communication unit 41. The control unit 42 outputs the generated message as a voice message and the emergency information as an emergency notification to the communication unit 41.
Furthermore, the control unit 42 associates the first mobile terminal 2 carried by the carrier with the second mobile terminal 3 carried by the guardian based on the telephone number or identification information of the mobile terminals, and stores the association in the storage unit 44. In this way, the data center 4 performs processing on a plurality of pairs of the first mobile terminal 2 and the second mobile terminal 3.

The model storage unit 43 stores a statistical area traffic model, a traffic prediction model, and the like as model information.
The statistical regional traffic model is a model that statistically represents traffic conditions, etc. in a region, and is a model that statistically represents traffic information, etc. in each region, using map information or traffic information data acquired by data center 4 from mobile terminals, etc.
The traffic prediction model is a model for predicting future traffic volume in a corresponding area based on traffic conditions in each area accumulated in the past, and may be determined based on data from the statistical area traffic model. For example, the traffic prediction model may be traffic volume on the route taken by a user of the first mobile terminal 2 to and from school.

The memory unit 44 stores map information. The map information includes, for example, a map including the route from home to school, location information of shops that the carrier will make a detour to (for example, supermarkets, bookstores, stationery stores, etc.), and location information of cram schools and other facilities that the carrier will visit before returning home. The map information also includes information on the route network (junctions, branches) of sidewalks and roads. The memory unit 44 also stores location information of the first mobile terminal 2. The memory unit 44 stores information indicating dangerous locations and information on suspicious people. The memory unit 44 stores predetermined values used when generating danger information.

The server 5 is installed, for example, in a school or a ward office. The server 5 transmits disaster information related to natural disasters such as earthquakes and typhoons, and information on suspicious persons, etc., to the data center 4 via the network 6. The data center 4 may obtain this information by communicating with the server 5.

Next, an example of a usage scene of the information communication system 1 will be described.
FIG. 2 is a diagram showing an example of a usage scene of the information communication system 1 according to the present embodiment. As shown in FIG. 2, the first portable terminal 2 is used by being attached to, for example, a shoulder strap of a school bag. As described later, the first portable terminal 2 includes a microphone, a radar, a speaker, a position detection unit, and the like. The first portable terminal 2 acquires and transmits a voice spoken by, for example, a child carrying the first portable terminal 2. The first portable terminal 2 also transmits a signal of the detection result of the radar to the data center 4. The first portable terminal 2 also receives information and messages transmitted by the data center 4 and plays and notifies them. The school bag is an example of a carry-on item, a shoulder bag, and a backpack.

The data center 4 transmits to the first mobile terminal 2 traffic information, messages, and emergency information generated based on the information received from the first mobile terminal 2 and the information received from the server 5. The data center 4 also transmits to the second mobile terminal 3 first mobile terminal position information, emergency notifications, and voice messages generated based on the information received from the first mobile terminal 2 and the information received from the server 5. Note that, for example, when other children are carrying other first mobile terminals 2 while going to and from school, the data center 4 may mutually use real-time information captured by these multiple first mobile terminals 2 (e.g., current position, information on pedestrians in the same group, information on surrounding pedestrians, vehicle information, etc.) to generate each piece of information.

The second mobile terminal 3 receives the first mobile terminal location information, including map information including the route walked by the child carrying the first mobile terminal 2, from the data center 4, and displays the received first mobile terminal location information as situation information. The second mobile terminal 3 also receives emergency notifications and voice messages sent by the data center 4, and displays or plays the received emergency notifications or voice messages. The images displayed on the second mobile terminal 3 will be described later.

The server 5 transmits, for example, the contents of a broadcast by a disaster prevention administrative radio to the data center 4 via the network 6 .
The usage scene shown in FIG. 2 is an example, and the usage scene is not limited to this.

<Configuration example of first mobile terminal 2>
Next, a configuration example of the first portable terminal 2 will be described.
Fig. 3 is a block diagram showing an example of the configuration of the first portable terminal 2 according to this embodiment. As shown in Fig. 3, the first portable terminal 2 includes a communication unit 21, a radar 22, a microphone 23, a position detection unit 24, a vibrator 25, a speaker 26, a display unit 27, an acceleration sensor 28, and a control unit 29. The first portable terminal 2 may also include an operation unit.

The communication unit 21 includes, for example, a communication IC card, a communication antenna, and a communication module.
The communication unit 21 transmits information output by the control unit 29 (e.g., location information, information on pedestrians in the same group, surrounding pedestrian information, and vehicle information) to the data center 4 via the network 6. The communication unit 21 receives information transmitted by the data center 4 (e.g., traffic information, messages, and emergency information), and outputs the received information (e.g., traffic information, messages, and emergency information) to the control unit 29. The communication unit 21 receives danger information transmitted by the data center 4, and outputs the received danger information to the control unit 29.

The radar 22 includes a front radar that detects objects in front of the first portable terminal 2 and a rear radar that detects objects behind the first portable terminal 2 (e.g., behind the front radar). The front radar and the rear radar are, for example, millimeter wave radars. The radar 22 outputs detection signals related to, for example, the distance, relative speed, relative position, and direction of an external object to the control unit 29.

The microphone 23 outputs a signal obtained by collecting sound (for example, an audio signal) to the control unit 29. Note that the microphone 23 may be a microphone array constituted by a plurality of microphones.
The position detection unit 24 includes a positioning signal receiving antenna that receives a positioning signal from a satellite or the like. The position detection unit 24 outputs the received positioning signal to the control unit 29. Note that the first portable terminal 2 may obtain information indicating the current position based on communication with a base station, for example.

The vibrator 25 is a vibrator that generates vibrations in response to notification information output by the control unit 29 .
The speaker 26 converts a signal (for example, an audio signal) output by the control unit 29 into sound.
The display unit 27 operates in response to the notification information output by the control unit 29. The display unit 27 includes LEDs (light-emitting diodes) that emit light in three colors, for example, red, green, and blue. Note that the display unit 27 may be, for example, a liquid crystal display device, an organic EL (electroluminescence) display device, an electronic ink display device, or the like.
The acceleration sensor 28 detects the acceleration of the first portable terminal 2 in three directions, the X-axis, the Y-axis, and the Z-axis, and outputs a signal of the detected acceleration to the control unit 29 .

The control unit 29 acquires the detection signal output by the radar 22. The control unit 29 acquires the audio signal output by the microphone 23. The control unit 29 acquires the positioning information output by the position detection unit 24. The control unit 29 acquires the danger information output by the communication unit 21. The control unit 29 outputs the position information based on the positioning information acquired from the position detection unit 24 to the communication unit 21. For example, the control unit 29 determines whether or not a person is included in the detection signal acquired from the radar 22 using a well-known recognition method. If a person is included in the detection signal, the control unit 29 sets the detection signal as same-group pedestrian information or surrounding pedestrian information, and outputs the same-group pedestrian information or surrounding pedestrian information to the communication unit 21. Note that, for example, when the size of a person included in the detection signal is less than a threshold, the control unit 29 determines that the person is a surrounding pedestrian, and when the size is equal to or greater than the threshold, determines that the person is a same-group pedestrian. The control unit 29 also determines whether or not a vehicle is included in the detection signal using a well-known recognition method. If the detection signal includes a vehicle, the control unit 29 treats the detection signal as vehicle information and outputs the vehicle information to the communication unit 21.

The control unit 29 acquires information (e.g., traffic information, messages, and emergency information) output by the communication unit 21. When the information from the communication unit 21 is an audio signal, the control unit 29 outputs the audio signal to the speaker 26. When the information from the communication unit 21 is not an audio signal, the control unit 29 outputs the information to at least one of the display unit 27 and the vibrator 25. When the control unit 29 outputs information from the communication unit 21 to the display unit 27, it controls, for example, the color of light emitted or the blinking state according to the information. When the control unit 29 outputs information from the communication unit 21 to the vibrator 25, it controls, for example, the vibration interval or the vibration strength according to the information.

The control unit 29 generates a voice message based on the danger information, and outputs the generated voice message to the speaker 26. The control unit 29 also generates notification information based on the danger information, and outputs the generated notification information to the vibrator 25.
The control unit 29 acquires the detection value output by the acceleration sensor 28 and transmits the acquired detection value to the data center 4 via the communication unit 21 .

<Configuration example of second mobile terminal 3>
Next, a configuration example of the second mobile terminal 3 will be described.
4 is a block diagram showing an example of the configuration of the second mobile terminal 3 according to the present embodiment. As shown in FIG. 4, the second mobile terminal 3 includes a communication unit 31, a microphone 32, an operation unit 33, a display unit 34, a speaker 35, a control unit 36, and a vibrator 37.

The communication unit 31 receives the first mobile terminal location information transmitted by the data center 4, and outputs the received first mobile terminal location information to the control unit 36. The communication unit 31 receives the emergency notification or voice message transmitted by the data center 4, and outputs the received emergency notification or voice message to the control unit 36.
The microphone 32 outputs a signal obtained by collecting sound (for example, an audio signal) to the control unit 36. Note that the microphone 32 may be a microphone array constituted by a plurality of microphones.

The operation unit 33 is, for example, a touch panel sensor provided on the display unit 34. The operation unit 33 outputs a signal in response to an operation by a user to the control unit 36.
The display unit 34 displays the first portable terminal position information output by the control unit 36. The display unit 34 is, for example, a liquid crystal display device, an organic EL display device, or an electronic ink display device.
The speaker 35 converts a signal (eg, an audio signal) output by the control unit 36 into sound.
The vibrator 37 is a vibrator that generates vibrations in response to the notification information output by the control unit 36 .

The control unit 36 acquires the first mobile terminal location information output by the communication unit 31. The control unit 36 acquires the emergency notification or voice message output by the communication unit 31. The control unit 36 outputs the acquired first mobile terminal location information to the display unit 34. If the emergency notification is image information, the control unit 36 outputs the emergency information to the display unit 34. The control unit 36 outputs the acquired voice message to the speaker 35. The control unit 36 acquires danger information output by the communication unit 31. The control unit 36 generates a voice message based on the danger information and outputs the generated voice message to the speaker 35. Alternatively, the control unit 36 generates alarm information based on the danger information and outputs the generated alarm information to the vibrator 37.

<Procedure for transmitting first mobile terminal location information>
Next, an example of a process procedure in which the data center 4 transmits the first portable terminal location information to the second portable terminal 3 will be described.
FIG. 5 is a flowchart of an example of a processing procedure in which the data center 4 transmits the first mobile terminal location information to the second mobile terminal 3 according to this embodiment.

(Step S11) The control unit 42 receives location information from the first portable terminal 2 via the network 6 through the communication unit 41. The location information includes received time information.
(Step S12) The control unit 42 stores the received location information in the storage unit 44.

(Step S13) The control unit 42 generates first mobile terminal location information using the location information and map information stored in the memory unit 44. The control unit 42 connects the time information included in the location information in chronological order to generate a movement trajectory of the carrier of the first mobile terminal 2. Next, the control unit 42 transmits the first mobile terminal location information to the second mobile terminal 3 via the network 6 through the communication unit 41.

5 when receiving a request to transmit the first mobile terminal location information from the second mobile terminal 3. The request to transmit the first mobile terminal location information is transmitted from the control unit 36 via the communication unit 31 in response to an operation on the operation unit 33 of the second mobile terminal 3 by the guardian.
5 at a preset time. The preset time is, for example, the time when the carrier arrives at school and the time when the carrier leaves school, which is set in response to an operation of the operation unit 33 of the second mobile terminal 3 by the guardian.

FIG. 6 is a diagram showing an example of first portable terminal location information displayed on the display unit 34 of the second portable terminal 3 according to this embodiment.
6 is, for example, the first portable terminal position information when the carrier is going home from school. This first portable terminal position information includes information on the movement trajectory g11 and the current position g12 of the carrier who has the first portable terminal 2.

<Procedure for sending danger notification>
An example of a processing procedure in which the data center 4 transmits a danger notification to the first mobile terminal 2 and the second mobile terminal 3 will be described below.
FIG. 7 is a flowchart of an example of a processing procedure in which the data center 4 according to this embodiment transmits a danger notification to the first mobile terminal 2 and the second mobile terminal 3.

(Step S21) The control unit 42 of the data center 4 accesses the server 5.
(Step S22) The control unit 42 acquires information indicating dangerous locations and suspicious person information from the server 5 via the communication unit 41. The control unit 42 stores the acquired information indicating dangerous locations and suspicious person information in the storage unit 44. Note that the dangerous location includes, for example, a predetermined range including the position (latitude and longitude) where the suspicious person information was obtained, or a range such as an address where the suspicious person information was obtained. Note that the range may be set by the control unit 42.

(Step S23) The control unit 42 acquires location information from the first mobile terminal 2. The location information may be transmitted by the first mobile terminal 2 based on a request from the data center 4, or may be transmitted by the first mobile terminal 2 at a predetermined interval. The control unit 42 stores the acquired location information in the storage unit 44.

(Step S24) The control unit 42 calculates the distance between the danger spot and the current position of the carrier based on the map information, the information indicating the danger spot, and the position information stored in the storage unit 44.
(Step S25) The control unit 42 determines whether or not the calculated distance is less than a predetermined value stored in the memory unit 44. If the control unit 42 determines that the distance is less than the predetermined value (Step S25; YES), the control unit 42 proceeds to the process of Step S26. If the control unit 42 determines that the distance is equal to or greater than the predetermined value (Step S25; NO), the control unit 42 returns to the process of Step S21.

(Step S26) The control unit 42 generates danger information. The control unit 42 notifies the second portable terminal 3 of the danger by transmitting the generated danger information to the second portable terminal 3 via the communication unit 41. When the danger information is an alarm sound, the control unit 42 increases the volume of the alarm sound as the first portable terminal 2 approaches the danger spot.
(Step S27) The control unit 42 notifies the first portable terminal 2 of the danger by transmitting the generated danger information to the first portable terminal 2 via the communication unit 41. When the danger information is an alarm sound, the control unit 42 increases the volume of the alarm sound as the first portable terminal 2 approaches the danger spot.

In the above example, the data center 4 acquires information indicating dangerous locations from the server 5, but this is not limiting. For example, the guardian may set dangerous locations by operating the operation unit 33 of the second mobile terminal 3, and the control unit 42 of the data center 4 may acquire the set information.

<Danger notification reception process>
Next, an example of a processing procedure when the first portable terminal 2 carried by the carrier receives danger information will be described.
FIG. 8 is a flowchart of an example of a processing procedure when the first mobile terminal 2 according to this embodiment receives danger information.

(Step S31) The control unit 29 of the first mobile terminal 2 receives the danger information transmitted by the data center 4 via the communication unit 21.
(Step S32) The control unit 29 generates a voice message notifying the user of the danger based on the danger information, and plays the generated voice message from the speaker 26. The control unit 29 also generates, for example, a buzzer sound based on the danger information, and plays the generated buzzer sound from the speaker 26. If the speaker 26 is a buzzer, the control unit 29 outputs a predetermined voltage to the speaker 26 based on the danger information. This causes the control unit 29 to output a sound based on the danger information. The control unit 29 increases the volume as the distance between the danger spot and the current position of the wearer decreases.

(Step S33) The control unit 29 determines whether or not the device is in a vibrator mode in which sound output from the speaker 26 is prohibited. Note that the control unit 29 may set the vibrator mode in response to, for example, an operation on an operation unit (not shown) included in the first portable terminal 2, or in response to an instruction from the second portable terminal 3.
When the control unit 29 determines that the mode is the vibrator mode (step S33; YES), the control unit 29 proceeds to the process of step S34. On the other hand, when the control unit 29 determines that the mode is not the vibrator mode (step S33; NO), the control unit 29 returns the process to step S31. Note that, when the mode is the vibrator mode, the control unit 29 may not perform the process of step S32, or may cause the display unit 27 to blink instead of the process of step S32.

(Step S34) The control unit 29 drives the vibrator 25 based on the danger information.
The control unit 29 may increase the amplitude of vibration of the vibrator 25 or shorten the interval between vibrations as the distance between the dangerous spot and the current position of the wearer decreases.

Next, an example of a processing procedure when the second mobile terminal 3 carried by the guardian receives danger information will be described.
FIG. 9 is a flowchart of an example of a processing procedure when the second mobile terminal 3 according to this embodiment receives danger information.

(Step S41) The control unit 36 of the second mobile terminal 3 receives the danger information transmitted by the data center 4 via the communication unit 31.
(Step S42) The control unit 36 generates a voice message notifying the user of the danger based on the danger information, and plays the generated voice message from the speaker 35. Alternatively, the control unit 36 generates, for example, a buzzer sound based on the danger information, and plays the generated buzzer sound by the speaker 35. If the speaker 35 is a buzzer, the control unit 36 outputs a predetermined voltage to the speaker 35 based on the danger information. This causes the control unit 36 to output a voice based on the danger information. The control unit 36 increases the volume as the distance between the danger spot and the current position of the wearer decreases.

(Step S43) The control unit 36 determines whether or not the device is in the vibrator mode. The control unit 36 sets the vibrator mode in accordance with the result of operating the operation unit 33 of the second mobile terminal 3. If the control unit 36 determines that the device is in the vibrator mode (Step S43; YES), the control unit 36 proceeds to the process of step S44. On the other hand, if the control unit 36 determines that the device is not in the vibrator mode (Step S43; NO), the control unit 36 proceeds to the process of step S45. If the device is in the vibrator mode, the control unit 36 may not perform the process of step S42, or may cause the display unit 34 to blink instead of the process of step S42.

(Step S44) The control unit 36 drives the vibrator 37 based on the danger information.
The control unit 36 may increase the amplitude of vibration of the vibrator 37 or shorten the interval between vibrations as the distance between the dangerous spot and the current position of the wearer becomes shorter.

(Step S45) The control unit 36 transmits a request to send the first mobile terminal location information to the data center 4 via the communication unit 31 based on the result of the guardian's operation of the operation unit 33. The control unit 42 of the data center 4 adds a warning image notifying of danger to the first mobile terminal location information based on the received transmission request, and transmits it to the second mobile terminal 3 via the communication unit 31. The control unit 36 receives the first mobile terminal location information transmitted by the data center 4 via the communication unit 31. The control unit 36 causes the display unit 34 to display the received first mobile terminal location information.

FIG. 10 is a diagram showing an example of first portable terminal location information including a warning image displayed on the display unit 34 of the second portable terminal 3 according to this embodiment.
10 is, for example, the first mobile terminal position information when the carrier is going home from school. This first mobile terminal position information includes information on the movement trajectory g11 and the current position g12 of the carrier who has the first mobile terminal 2, an image g21 showing a dangerous spot, and a warning image g22.
10, since the current location of the first portable terminal 2 carried by the carrier is within a dangerous area, a warning image g22 with a predetermined message (e.g., "You are in a dangerous area. Be careful!") is displayed by being superimposed or combined with other information. The warning image may be generated based on the warning information received by the control unit 36.

The control unit 29 of the first mobile terminal 2 may transmit the detection signal acquired from the radar 22 to the data center 4 via the communication unit 21 as same-group pedestrian information, surrounding pedestrian information, or vehicle information.

In addition, the control unit 42 of the data center 4 may transmit traffic information to the first mobile terminal 2 via the communication unit 41 when the holder of the first mobile terminal 2 approaches an area with heavy traffic, for example based on information received from the server 5.
The traffic information may be an audio signal. The control unit 29 of the first portable terminal 2 plays back the received traffic information. This allows the user of the first portable terminal 2 to know that he or she is approaching a location with heavy traffic.
Furthermore, the control unit 42 of the data center 4 may transmit emergency information to the first mobile terminal 2 and the second mobile terminal 3 based on, for example, information received from the server 5. The emergency information is, for example, information calling for evacuation in the event of a disaster or accident.

As described above, in this embodiment, location information acquired by the first mobile terminal 2 carried by the carrier or attached to a bag or the like is collected in the data center 4 and transmitted to the second mobile terminal 3 carried by the guardian. Also, in this embodiment, suspicious person information is collected from the government or school server 5 in the data center 4. When the data center 4 acquires suspicious person information, if the distance between the current location of the first mobile terminal 2 and the danger spot is less than a predetermined value, it transmits danger information to the carrier who carries the first mobile terminal 2 and the guardian who carries the second mobile terminal 3.
As a result, according to this embodiment, when the carrier of the first mobile terminal 2 is approaching a dangerous location, a danger notification can be sent to the carrier of the first mobile terminal 2 (e.g., a child or other young child) or the holder of the second mobile terminal 3 (e.g., a guardian, etc.).

In this embodiment, the alarm sound or the like is increased in volume as the first portable terminal 2 approaches a dangerous location.
As a result, according to this embodiment, it is possible to more accurately notify the carrier of the first portable terminal 2 that he or she is approaching a dangerous location.
In this embodiment, the second portable terminal 3 acquires the movement trajectory of the first portable terminal 2 .
As a result, according to this embodiment, the owner of the second portable terminal 3 can ascertain the movement trajectory of the owner of the first portable terminal 2 (for example, the route home from school to home, etc.).

<First Modification of Information Communication System>
Below, an example will be described in which the data center 4A determines whether or not a predetermined action that should be performed at a predetermined location such as a school route has been performed based on information received from the first portable terminal 2, and transmits the determination result to the second portable terminal 3. As will be described later, the predetermined location may be information about a location that includes the above-mentioned dangerous spot.

First, a main operation example of the information communication system 1A according to the first modified example of the embodiment will be described.
FIG. 11 is a diagram showing an example of main operations of an information communication system 1A according to a first modified example of the embodiment.
Reference symbol g100 is a diagram showing an example of a conversation between the first mobile terminal 2 and a user (e.g., a child) when the user returns home. In the diagram shown by reference symbol g100, reference symbol g101 is the child's speech, and reference symbol g102 is the first mobile terminal 2's speech.

Reference symbol g110 is a diagram showing an example of a conversation between a child and a guardian upon returning home. In the diagram shown by reference symbol g110, reference symbol g111 is the guardian's speech, reference symbol g112 is the child's speech, and reference symbol g113 is the speech of the first mobile terminal 2.

Reference symbol g120 shows an example of an image displayed on the second mobile terminal 3. The displayed image is an image received from the data center 4. Reference symbol g121 is an image received from the data center 4. Image g121 includes an image g122 of the score, an image g122 of the child's movement trajectory, and images g123 and g124 of the operation check results at the check point.

<Configuration of information communication system 1A>
Next, a configuration example of the information communication system 1A will be described.
FIG. 12 is a diagram showing a configuration example of an information communication system 1A according to a first modified example of the embodiment. As shown in FIG. 12, the information communication system 1A includes a first mobile terminal 2, a second mobile terminal 3, a data center 4A (center), and a server 5. The first mobile terminal 2, the second mobile terminal 3, the data center 4A, and the server 5 are connected to each other via a network 6. Note that the same reference numerals are used to omit or simplify the description of functional units that perform the same operations as those in the information communication system 1. As shown in FIG. 12, the difference between the information communication system 1 and the information communication system 1A according to the modified example is the data center 4A.

As shown in FIG. 12, the data center 4A includes a communication unit 41, a control unit 42A, a model memory unit 43, a memory unit 44A, a voice recognition model memory unit 45, a voice recognition unit 46, and a scenario memory unit 47.

The speech recognition model storage unit 45 stores, for example, an acoustic model, a language model, a word dictionary, etc. An acoustic model is a model based on sound features, and a language model is a model of information about words and their arrangement. A word dictionary is a dictionary with a large vocabulary, for example a large vocabulary word dictionary.

The voice recognition unit 46 detects a voice signal of a speech section from the voice signal output by the control unit 42A. The detection of the speech section is performed, for example, by detecting a voice signal equal to or greater than a predetermined threshold value as the speech section. The voice recognition unit 46 may detect the speech section using other well-known methods. The voice recognition unit 46 performs voice recognition on the voice signal of the detected speech section by referring to the voice recognition model storage unit 45 using a well-known method. The voice recognition unit 46 performs voice recognition using, for example, the method disclosed in JP 2015-64554 A. The voice recognition unit 46 converts the recognized recognition result into text by referring to the voice recognition model storage unit 45. The voice recognition unit 46 performs morphological analysis and dependency analysis on the text information by referring to the voice recognition model storage unit 45. For dependency analysis, for example, the shift-reduce method, the spanning tree method, or the stepwise application method of chunk identification using SVM (Support Vector Machines) is used. The speech recognition unit 46 outputs the analysis results to the control unit 42A.

The scenario storage unit 47 stores, for example in text format, the dialogue that takes place in the environment in which the first mobile terminal 2 is used.

The control unit 42A performs the following processes in addition to the processes performed by the control unit 42.
The control unit 42A receives the detection signal of the radar 22 received by the communication unit 41 from the first portable terminal 2, and the detection value of the acceleration sensor 28 received by the communication unit 41 from the first portable terminal 2. The control unit 42A determines whether a predetermined operation is performed at a set position based on at least one of the received detection signal of the radar 22 and the detection value of the acceleration sensor 28. The control unit 42A determines a score, for example, at the time of returning home, based on the determination result. The control unit 42A stores the determined score in the memory unit 44A.
The control unit 42A generates an image including an image of the child's movement trajectory, an image of the score, and an image showing the determination result. When the control unit 42A receives a request for sending the score from the second portable terminal 3, it transmits the generated image to the second portable terminal 3. Note that a method of determining whether or not a predetermined action has been performed and a method of calculating the score will be described later.
The control unit 42A also acquires the analysis result output by the voice recognition unit 46. The control unit 42A refers to the scenario storage unit 47 based on the analysis result and selects a response to the voice signal received from the first portable terminal 2. The control unit 42A converts the selected response into a voice signal, for example, by a formant synthesis technique, and transmits the converted voice signal to the first portable terminal 2 via the communication unit 41.

In addition to the information stored in the memory unit 44, the memory unit 44A stores information indicating a predetermined position (latitude, longitude, place name) in association with a predetermined action and a score. The memory unit 44A also stores the total score at the time of returning home, for example. The memory unit 44 also stores a threshold value used when determining whether or not a predetermined action has been performed. Furthermore, the memory unit 44A stores face model data and arm model data used for detection in response to a detection signal from the radar 22.

The guardian may operate the operation unit 33 of the second portable terminal 3 to set the commuting route in advance. In this case, the control unit 36 of the second portable terminal 3 may transmit information indicating the commuting route to the data center 4A via the communication unit 31. The guardian may also operate the operation unit 33 of the second portable terminal 3 to set a predetermined position where the predetermined operation is to be performed. In this case, the control unit 36 of the second portable terminal 3 may transmit information indicating the predetermined position to the data center 4A via the communication unit 31. The guardian may also operate the operation unit 33 of the second portable terminal 3 to set the predetermined operation. In this case, the control unit 36 of the second portable terminal 3 may transmit information indicating the predetermined operation to be performed at the predetermined position to the data center 4A via the communication unit 31.
The data center 4A may acquire danger points from the server 5, for example, and set the acquired danger points as predetermined positions. Then, a predetermined operation may be set according to the type of the predetermined position.

Next, examples of predetermined positions, predetermined actions, and scores will be described.
FIG. 13 is a diagram showing examples of predetermined positions, predetermined actions, and scores according to the first modified example of the embodiment.
The example shown in FIG. 13 shows predetermined positions on the route home (homeward route), predetermined actions, and a portion of the score, and is set so that the total score on the route home is 100 points.
13, the predetermined locations are intersections A, B, and C. The predetermined actions are, for example, stopping and checking left and right at intersection A. The scores are, for example, 10 for stopping and 10 for checking left and right at intersection A.
The control unit 42A sets a score of 10 if a stop action was performed at intersection A, and sets a score of 0 if a stop action was not performed. Then, the control unit 42A calculates the total score from the school to the home, and stores the calculated total score in the memory unit 44A. Note that the control unit 42A may calculate the total score by subtracting the score of the predetermined action that was not performed from 100 points.

Next, an example of a processing procedure performed by the data center 4A will be described.
14 is a flowchart of an example of a processing procedure performed by the data center 4A according to the first modified example of the embodiment. Note that the example shown in FIG. 14 is an example in which the control unit 42A determines whether or not a predetermined operation has been performed based on a detection signal from the radar 22.

(Step S51) The control unit 42A of the data center 4A receives the location information transmitted by the first portable terminal 2.
(Step S52) The control unit 42A receives the detection signal of the radar 22 transmitted by the first portable terminal 2. The first portable terminal 2 transmits position information and the detection signal to the data center 4A at predetermined intervals.

(Step S53) When the position is a predetermined location, the control unit 42A performs a motion analysis by determining whether or not a predetermined motion has been performed based on the received detection signal.
(Step S54) The control unit 42A performs a scoring process based on the result of the motion analysis and the information stored in the storage unit 44A. The scoring process is, for example, a point adding or subtracting process.

(Step S55) The control unit 42A determines whether or not a request to transmit a score has been received from the second mobile terminal 3. If the control unit 42A determines that a request has been received from the second mobile terminal 3 (Step S55; YES), the control unit 42A advances the process to Step S56. On the other hand, if the control unit 42A determines that a request has not been received from the second mobile terminal 3 (Step S55; NO), the control unit 42A returns the process to Step S51.

(Step S56) The control unit 42A generates an image including an image of the child's movement trajectory, an image of the score, and an image showing the determination result. The control unit 42A transmits the generated image to the second mobile terminal 3.

In the example shown in FIG. 14, the data center 4A transmits information including the score when it determines that a request has been received from the second mobile terminal 3, but this is not limiting. The data center 4A may transmit information including the score at a time set by the guardian or at a predetermined interval, for example.

Next, an example of a process performed by the second mobile terminal 3 will be described.
FIG. 15 is a flowchart of an example of a processing procedure performed by the second mobile terminal 3 according to the first modification of the embodiment.
(Step S61) The control unit 36 of the second mobile terminal 3 receives information including the score transmitted by the data center 4A.
(Step S62) The control unit 36 causes the display unit 34 to display the information including the received score.
The process shown in FIG. 15 may be executed when a request is transmitted from the second mobile terminal 3, at a time set by the parent or at predetermined intervals.

FIG. 16 is an example of an image of information including a score displayed on the display unit 34 of the second mobile terminal 3 according to the first modified example of the embodiment.
Image g200 is an image displayed on the display unit 34.
The reference symbol g201 indicates a school, and the reference symbol g202 indicates a home.
Reference numeral g203 denotes an image showing the movement trajectory of the child.
The symbols g211, g212, and g213 indicate predetermined locations.

Reference symbol g221 indicates the result of the determination of the predetermined motion in reference symbol g211. Note that a circle mark indicates that the predetermined motion has been performed.
Reference symbol g222 indicates the result of determination of the predetermined motion in reference symbol g212.
Reference symbol g223 indicates the result of the determination of the predetermined motion in reference symbol g213. Note that a cross mark indicates that the predetermined motion is not performed.
Symbol g230 is an image representing the total score.

In FIG. 16, the symbols g221 and g222 when a specified operation has been performed may be displayed in blue, for example, and the symbol g223 when a specified operation has not been performed may be displayed in red, for example. Such an image is generated by the control unit 42A of the data center 4A.

An example of a method for analyzing the behavior of pausing at a predetermined position will be described below.
17 is a flowchart of an example of a processing procedure of a method for analyzing a pause at a predetermined position according to a first modified example of an embodiment. The control unit 42A starts the following processing after initializing a counter value T to zero. The control unit 42A also performs the following processing at the predetermined position.

(Step S71) The control unit 42A of the data center 4A receives location information from the first mobile terminal 2. The control unit 42A associates the received location information with the received time information and stores it in the storage unit 44.

(Step S72) The control unit 42A compares the previous position (position information at the time closest to the current time) stored in the memory unit 44A with the received position information and determines whether or not the position is the same as the previous position. If the control unit 42A determines that the position is the same as the previous position (Step S72; YES), the control unit 42A proceeds to processing in step S73. On the other hand, if the control unit 42A determines that the position is not the same as the previous position (Step S72; NO), the control unit 42A proceeds to processing in step S74.

(Step S73) The control unit 42A adds 1 to the counter value T, and the process proceeds to step S75.
(Step S74) The control unit 42A assigns 0 to the counter value T, and returns the process to step S71.

(Step S75) The control unit 42A determines whether the counter value T is greater than a threshold value used to determine whether a predetermined operation has been performed. If the control unit 42A determines that the counter value T is greater than the threshold value (Step S75; YES), the control unit 42A advances the process to Step S76. On the other hand, if the control unit 42A determines that the counter value T is equal to or less than the threshold value (Step S75; NO), the control unit 42A returns the process to Step S71.
(Step S76) The control unit 42A determines that the child carrying the first portable terminal 2 has stopped temporarily at a predetermined position.

The control unit 42A may perform the pause action analysis based on the detection value of the acceleration sensor 28 of the first portable terminal 2.
In this case, in step S71, control unit 42A receives the detection value of acceleration sensor 28. Then, in step S72, control unit 42A may determine that the positions are the same when the difference between the previous detection value and the current detection value is within a predetermined range including zero.
In addition, the control unit 42A may detect whether or not the child has performed a specified action based on at least one of the detection value of the acceleration sensor 28 and other information (e.g., the detection signal output by the radar 22).

Next, an example of a method for analyzing the motion of checking left and right at a predetermined position will be described.
18 is a flowchart of an example of a processing procedure of a method for analyzing a motion of checking left and right at a predetermined position according to the first modified example of the embodiment. Note that the control unit 42A performs the following processing at a predetermined position.

(Step S81) The control unit 42A of the data center 4A receives the detection signal output by the radar 22 from the first portable terminal 2.
(Step S82) The control unit 42A uses a known method to detect the face of the person carrying the first portable terminal 2 from the received detection signal. Next, the control unit 42A associates the detection signal of the detected face with the acquired time information and stores it in the storage unit 44A.

(Step S83) Based on the face detection signal stored in the memory unit 44A, the control unit 42A compares the acquired face detection signal with the previous face detection signal. As a result of the comparison, the control unit 42A determines whether the face is moving left and right. If the control unit 42A determines that the face is moving left and right (Step S83; YES), the process proceeds to step S84. On the other hand, if the control unit 42A determines that the face is not moving left and right (Step S83; NO), the process proceeds to step S85.

(Step S84) The control unit 42A determines that the carrier of the first portable terminal 2 has performed left/right confirmation (left/right confirmation OK).
(Step S85) The control unit 42A determines that the carrier of the first portable terminal 2 has not performed left/right check (left/right check NG).

In addition, in the left/right confirmation process, the control unit 42A may determine whether the face has moved left/right based on the detection value of the acceleration sensor 28 when the left/right value of the detection value has changed by more than a predetermined value.
In addition, the control unit 42A may detect whether the wearer has performed a specified action based on at least one of the detection value of the acceleration sensor 28 and other information (e.g., a detection signal output by the radar 22).

An example of a method for analyzing a hand-raising motion in a predetermined position will be described below.
19 is a flowchart of an example of a processing procedure of a method for analyzing a hand-raising motion at a predetermined position according to the first modified example of the embodiment. Note that the control unit 42A performs the following processing at the predetermined position.

(Step S91) The control unit 42A of the data center 4A receives the detection signal output by the radar 22 from the first portable terminal 2.
(Step S92) The control unit 42A uses a known method to detect the arm of the person carrying the first portable terminal 2 from the received detection signal. The control unit 42A associates the detection signal of the detected arm with the acquired time information and stores it in the storage unit 44A.

(Step S93) The control unit 42A determines whether the arm is raised or not based on whether the arm can be detected. If the control unit 42A determines that the arm is raised (Step S93; YES), the process proceeds to Step S94. On the other hand, if the control unit 42A determines that the arm is not raised (the arm cannot be detected) (Step S93; NO), the process proceeds to Step S95.

(Step S94) The control unit 42A determines that the carrier of the first portable terminal 2 has performed a hand-raising gesture (hand-raising OK).
(Step S95) The control unit 42A determines that the carrier of the first portable terminal 2 has not performed a hand-raising action (hand-raising NG).

As described above, in the first modified embodiment, whether or not a child has performed a necessary action on the way to school, for example, in terms of traffic safety, is judged and presented as a score. This allows the child carrying the first mobile terminal 2 to have fun while trying to improve his/her score. Therefore, according to the first modified embodiment, it is possible to continuously educate the child carrying the first mobile terminal 2 on traffic safety. In addition, in the first modified embodiment, the actions and scores of the child carrying the first mobile terminal 2 are transmitted to the second mobile terminal 3 carried by the guardian, so that the guardian can grasp the child's skills. According to the first modified embodiment, the guardian and the child can communicate while viewing the information displayed on the second mobile terminal 3, thereby increasing opportunities for communication between the guardian and the child and further improving safety awareness at the same time.

Below, an example of communication between the first mobile terminal 2 and a child who is the carrier of the first mobile terminal 2 will be described with reference to the diagram indicated by reference symbol g100 in Figure 11.

For example, when a child comes home, he or she may say, "I'm home!"
The control unit 29 of the first portable terminal 2 transmits this voice signal picked up by the microphone 23 to the data center 4A via the communication unit 21. The voice recognition unit 46 of the data center 4A performs voice recognition processing on the received voice signal. The control unit 42A generates a reply voice signal based on the result of the voice recognition processing, and transmits the generated voice signal to the first portable terminal 2 via the communication unit 41. As a result, the control unit 29 of the first portable terminal 2 speaks by playing back "Welcome back!" received from the data center 4A.

Next, the data center 4A receives a voice signal in which the child asks "What's your score today?", and the control unit 42A generates a voice signal of the response "90 points" based on the results of the voice recognition and the information stored in the scenario storage unit 47 and the storage unit 44. The control unit 42A transmits the voice signal of the response to the first mobile terminal 2 via the communication unit 41. As a result, the control unit 29 of the first mobile terminal 2 speaks out the "90 points" received from the data center 4A.

In this manner, in the above example of communication, the first mobile terminal 2 transmits the picked-up audio signal to the data center 4A, and the data center 4A transmits a response to the received audio signal to the first mobile terminal 2. This allows communication between the child carrying the first mobile terminal 2 and the first mobile terminal 2, making it possible to provide continuous traffic safety education to the child carrying the first mobile terminal 2.

The voice signal that the data center 4A transmits to the first mobile terminal 2 may be, for example, "You did a great job!" if the score is 70 or more, or, for example, "You didn't pause. Let's pause tomorrow" if the score is 50 or less.

Below, an example of communication between a parent, a child, and the first mobile device 2 is described with reference to the diagram indicated by reference symbol g110 in Figure 11.

In this example, the parent and child have a conversation to check traffic safety points while looking at the image displayed on the second mobile terminal 3 .
In this example, the first mobile terminal 2 or the second mobile terminal 3 transmits the collected voice signal to the data center 4A. The data center 4A transmits a voice signal of advice based on the result of the voice recognition to the first mobile terminal 2. As a result, the first mobile terminal 2 reproduces the voice signal of advice, "It's OK to pause, so just raise your hand!".
The data center 4A may also transmit a voice signal of such advice to the second mobile terminal 3.

In this manner, in the above example of communication, the first mobile terminal 2 or the second mobile terminal 3 transmits the picked-up audio signal to the data center 4A, and the data center 4A transmits a response to the received audio signal to the first mobile terminal 2. This allows communication between the guardian, child, and the robot that is the first mobile terminal 2, and allows continuous traffic safety education to be provided to the child carrying the first mobile terminal 2.

In the above embodiment, an example was described in which the first mobile terminal 2 is carried by a child, but the first mobile terminal 2 may also be carried by, for example, a moving person, a pedestrian, or an elderly person.

<Second Modification of Information Communication System>
The following describes in detail the process of notifying the user of the first mobile terminal 2 of a predetermined geographical location. Note that the same components as those in the above-described embodiment or first modified example are given the same reference numerals, and descriptions thereof will be omitted or simplified. Note that the geographical location may be information on a location including the above-described dangerous spot and the predetermined location.

FIG. 20 is a diagram showing an example of the configuration of an information communication system 1B according to a second modified example of an embodiment. As shown in FIG. 20, the information communication system 1B includes a first mobile terminal 2, a second mobile terminal 3, a data center 4B, and a server 5. The data center 4B includes a communication unit 41, a control unit 42B, a model storage unit 43, a storage unit 44B, a voice recognition model storage unit 45, a voice recognition unit 46, and a scenario storage unit 47.

The storage unit 44B includes, for example, a HDD, a flash memory, an EEPROM (Electrically Erasable Programmable Read Only Memory), a ROM (Read Only Memory), or a RAM (Random Access Memory). The storage unit 44B stores, for example, map information, danger information, suspicious person information, and geographical location information. Note that the suspicious person information includes a suspicious person pattern in addition to location information and time when a suspicious person appeared. The suspicious person pattern is information that indicates the characteristics of the actions and behavior of a suspicious person. The geographical location information will be described in detail later.

The control unit 42B has, for example, an alarm unit 421 as a functional unit. The control unit 42B is realized, for example, by a hardware processor such as a CPU (Central Processing Unit) executing a program (software) stored in the memory unit 44B. In addition, some or all of these components may be realized by hardware (including circuitry) such as an LSI (Large Scale Integration), an ASIC (Application Specific Integrated Circuit), an FPGA (Field-Programmable Gate Array), and a GPU (Graphics Processing Unit), or may be realized by a combination of software and hardware.

The notification unit 421 notifies the carrier (e.g., a child or other young child) of the approach of a geographical location based on the location information and geographical location information of the first mobile terminal 2. The geographical location information is information indicating a geographical location. The geographical location is a location on a route along which the carrier of the first mobile terminal 2 travels, such as a location where a child may be in danger. The geographical location includes, for example, an intersection on a route, a location on a sidewalk separated from a roadway, and the vicinity of a structure that may be dangerous. The geographical location includes, for example, a location where a predetermined action such as a stopping action, a left/right check action, or a hand-raising action is required to be performed (for example, a safety confirmation point, etc.).
In the following description, the geographical location information includes geographical locations on the route that a child walks to and from school.

The first mobile terminal 2 identifies the position of the first mobile terminal 2 (i.e., the child's position) based on a positioning signal received from a satellite or the like by the position detection unit 24, and transmits position information indicating the identified position to the data center 4B.

The information and communication system 1B may employ a method other than the location detection unit 24 as long as the method can identify the child's location. For example, the first mobile terminal 2 may identify the location of the first mobile terminal 2 by a method such as BLE (Bluetooth (registered trademark) Low Energy), PDR (Pedestrian Dead Reckoning), IMES (Indoor MEssaging System), or SLAM (Simultaneous Localization and Mapping). The first mobile terminal 2 may identify the location of the first mobile terminal 2 based on surrounding information detected by the radar 22. The information and communication system 1B may obtain the location of the first mobile terminal 2 from another system that identifies the location of the first mobile terminal 2. For example, the other system may include a detection device installed at a geographical location, and the detection device may detect the first mobile terminal 2 that exists in the vicinity of the device, thereby identifying the location of the first mobile terminal 2.

The notification unit 421 controls the notification function of the first mobile terminal 2 to notify the child of the approach of the geographical location based on the location information of the first mobile terminal 2 and the geographical location information acquired from the first mobile terminal 2 when the child is approaching the geographical location. The notification function of the first mobile terminal 2 is, for example, a vibrator 25 and a speaker 26.

The following describes a case where the notification unit 421 of the data center 4B transmits a control signal for the vibrator 25 to the first portable terminal 2, and the first portable terminal 2 operates (vibrates) the vibrator 25 based on the control signal, thereby notifying the child of the approach of a geographical location. Note that in the following description, the notification unit 421 transmitting a control signal for the vibrator 25 to the first portable terminal 2, and the first portable terminal 2 vibrating the vibrator 25 based on the control signal, is also described as the notification unit 421 vibrating the vibrator 25.

Fig. 21 is a diagram showing a schematic diagram of the start timing of a notification according to a second modified example of the embodiment. In the example shown in Fig. 21, a child C1 who is a carrier of the first mobile terminal 2 walks along a route (route rt shown in the figure) that goes straight toward an intersection and turns right at the intersection. A geographical position PT1 is set in advance at the location of the intersection. It is preferable that the geographical position PT1 is set on the route rt along which the child C1 is walking, rather than at the center of the intersection. For example, on a road where the roadway and the sidewalk are separated, the route rt is the sidewalk, and the geographical position PT1 is set on the sidewalk (more specifically, the boundary between the sidewalk and the roadway).

The notification unit 421 activates the vibrator 25 when the child C1 approaches a position (i.e., the specified range ARP) a predetermined distance (first predetermined distance dt1 shown in the figure) from the geographical position PT1. The first predetermined distance dt1 is, for example, a distance of about several meters. The notification unit 421 may also change the intensity of the notification (e.g., the intensity of the vibration) depending on the distance to the geographical position PT1. The child C1 is notified of the geographical position PT1 (i.e., an intersection) by the vibrator 25, and walks while paying attention to his/her surroundings. Therefore, the information and communication system 1B can prevent contact between the child C1 and a vehicle m traveling in the direction of travel of the child C1.

FIG. 22 is a flowchart illustrating an example of a process performed by a notification unit 421 according to the second modified example of the embodiment.
The notification unit 421 executes the process shown in FIG. 22 at predetermined time intervals.
First, the notification unit 421 acquires location information indicating the location of the child C1 from the first portable terminal 2 (step S100).
Next, the notification unit 421 determines whether or not the distance from the position of the child C1 to the geographical position PT1 is less than a first predetermined distance dt1 (step S102).
If the distance from the position of the child C1 to the geographical position PT1 is not less than the first predetermined distance dt1, the notification unit 421 ends the process.
On the other hand, if the distance from the position of the child C1 to the geographical position PT1 is less than the first predetermined distance dt1, the notification unit 421 advances the process to step S104.
The notification unit 421 performs a geographical location approach notification process to notify the child C1 of the approach of the geographical location PT1 (step S104), and ends the process.

FIG. 23 is a flowchart showing the details of the geographical position approach notification process in step S104 shown in FIG.
First, the notification unit 421 starts a notification to notify the child C1 of the approach of the geographical position PT1 (step S200). In this example, the notification unit 421 starts vibration of the vibrator 25.
Next, the notification unit 421 acquires the position of the child C1 by the position detection unit 24 (step S202).
Next, the notification unit 421 determines whether or not the child C1 is approaching the geographical position PT1 based on the position of the child C1 acquired in step S100 and the position of the child C1 acquired in step S202 (step S204).
When the notification unit 421 determines that the child C1 is approaching the geographical position PT1 (YES side of step S204), the notification unit 421 advances the process to step S206.
On the other hand, if the notification unit 421 determines that the child C1 is not approaching the geographical position PT1 (NO in step S204), the process proceeds to step S208.
Then, the notification unit 421 increases the notification volume of the vibrator 25 (step S206), and the process proceeds to step S212. Increasing the notification volume means, for example, at least one of increasing the vibration of the vibrator 25 and increasing the frequency of vibration.

The notification unit 421 also determines whether the child C1 is moving away from the geographical position PT1 (step S208).
When the notification unit 421 determines that the child C1 is moving away from the geographical position PT1 (YES side of step S208), the notification unit 421 advances the process to step S210.
On the other hand, if the notification unit 421 determines that the child C1 is neither approaching nor moving away from the geographical position PT1 (NO in step S208), it does not change the notification volume of the vibrator 25 and proceeds to step S212.
Then, the notification unit 421 reduces the notification volume of the vibrator 25 (step S210), and the process proceeds to step S212. Reducing the notification volume means at least one of reducing the vibration of the vibrator 25 and reducing the frequency of vibration.

The notification unit 421 determines whether or not the distance from the position of the child C1 to the geographical position PT1 is equal to or greater than a first predetermined distance dt1 (step S212).
The notification unit 421 returns the process to step S204 while it determines that the distance from the position of the child C1 to the geographical position PT1 is less than the first predetermined distance dt1 (the NO side of step S212, i.e., until the child C1 goes outside the predetermined range ARP). The notification unit 421 adjusts the amount of notification by repeating the processes from steps S204 to S210.
On the other hand, if the notification unit 421 determines that the distance from the position of the child C1 to the geographical position PT1 is equal to or greater than the first predetermined distance dt1 (YES in step S212), the notification unit 421 advances the process to step S214.
Then, the notification unit 421 stops the notification (step S214).

In the above description, the distance from the position of the child C1 to the geographical position PT1 is a straight-line distance, but this is not limited to the above. The distance from the position of the child C1 to the geographical position PT1 may be a distance along the route rt of the child C1. The notification unit 421 issues a notification based on the distance to the geographical position PT1 along the route rt of the child C1, thereby preventing the notification from being issued for a long period of time and preventing the child C1 from becoming accustomed to the notification state.
As described above, the information communication system 1B according to the second modified example of the embodiment can more appropriately notify the child C1 of the approach of a geographical position.

<Third Modification of Information Communication System>
The following describes a case where the carrier of the first portable terminal 2 is notified of an object or person approaching the carrier. Note that the same reference numerals are used to designate configurations similar to those in the above-described embodiment, first modified example, or second modified example, and descriptions thereof will be omitted or simplified.

Fig. 24 is a diagram showing an example of the configuration of a first portable terminal 2B according to a third modified example of an embodiment. As shown in Fig. 24, the first portable terminal 2B includes a communication unit 21, a radar 22, a microphone 23, a position detection unit 24, a vibrator 25, a speaker 26, a display unit 27, an acceleration sensor 28, and a control unit 29B.

The control unit 29B, for example, has an approach determination unit 291 as a functional unit in addition to the configuration of the control unit 29. The control unit 29B is realized, for example, by a hardware processor such as a CPU executing a program (software) stored in a storage unit (not shown). Furthermore, some or all of these components may be realized by hardware (including circuit units) such as an LSI, ASIC, FPGA, or GPU, or may be realized by a combination of software and hardware.

The approach determination unit 291 determines whether or not an object existing around the carrier has approached the carrier, for example, based on the detection result of the detection function of the first mobile terminal 2B. In the following explanation, a case will be described in which the detection function of the first mobile terminal 2B is radar 22.

Figure 25 is a diagram showing a schematic diagram of the start timing of the notification according to the third modified example of the embodiment. The radar 22 equipped in the first portable terminal 2B is configured to be able to detect, for example, the surroundings of the child C1. The radar 22 is configured, for example, by a plurality of (two in the figure) millimeter wave radars, and is provided with different detection directions so as to be able to detect the surroundings of the first portable terminal 2B (i.e., the surroundings of the child C1). In the example shown in Figure 25, the front radar and rear radar equipped in the radar 22 detect different ranges (the forward detection range AF and the rear detection range AR shown in the figure). When the radar 22 is set to be able to detect the entire surroundings of the child C1 (for example, a range of 360 degrees around the vertical axis), the forward detection range AF and the rear detection range AR may overlap each other. The radar 22 detects the surroundings of the wearer at a predetermined time interval, for example, and generates a detection signal. The radar 22 may be equipped with one or more millimeter wave radars as long as it is capable of detecting the surroundings of the child C1.

The first portable terminal 2B may include a device other than the radar 22 as a configuration for detecting the surrounding environment of the carrier. Instead of the radar 22, the first portable terminal 2B may include a detection device that performs remote detection, such as a camera, a LIDAR (Light Detection and Ranging or Laser Imaging Detection and Ranging), or an infrared sensor.
For example, the first portable terminal 2B may be equipped with one or more cameras instead of the radar 22. For example, the three cameras equipped in the first portable terminal 2B capture different ranges (imaging ranges AR1 to AR3 shown in the figure) as shown in Fig. 25. The imaging ranges AR1 to AR3 of the three cameras may overlap with each other. The three cameras may capture the surroundings of the carrier at predetermined time intervals and generate captured images (for example, still images or videos).

When an object approaches a position (i.e., the specified range ARC shown in the figure) a specified distance (the second specified distance dt2 shown in the figure) from the position of child C1 based on the detection signal generated by the radar 22, the approach determination unit 291 determines that an object has approached child C1 and transmits the detection signal of the radar 22 to the data center 4B. The second specified distance dt2 is a distance of about several meters.

When an object is approaching child C1 based on the detection signal of radar 22 received from the first mobile terminal 2B, the notification unit 421 of the data center 4B controls the notification function of the first mobile terminal 2B to notify child C1 of the approach of the object. The notification unit 421 notifies child C1 of the approach of a vehicle m and a suspicious person among the objects approaching child C1.

FIG. 26 is a flowchart showing an example of the process of the approach determination unit 291 and the notification unit 421 according to the third modified example of the embodiment.
First, the approach determination unit 291 acquires a detection signal output by the radar 22 (step S300).
Next, the approach determiner 291 determines, based on the acquired detection signal, whether or not the distance from the child C1 to the detected object is less than a second predetermined distance dt2 (step S302).
When the approach determiner 291 determines that the distance from the child C1 to the detected object is not less than the second predetermined distance dt2 (NO in step S302), the process returns to step S300 and waits.
On the other hand, when the approach determiner 291 determines that the distance from the child C1 to the detected object is less than the second predetermined distance dt2 (YES in step S302), the process proceeds to step S304.
Then, the notification unit 421 performs an object approach notification process to notify the child C1 of the approach of the object (step S304), and ends the process.

FIG. 27 is a flowchart showing details of the object approach notification process in step S304 shown in FIG.
First, the notification unit 421 determines whether the size of the object indicated by the detection signal acquired in step S300 is equal to or larger than a predetermined size (step S400). The predetermined size is, for example, the size of a general vehicle.
When the notification unit 421 determines that the size of the object indicated by the detection signal is equal to or larger than a predetermined size (YES in step S400), the notification unit 421 advances the process to step S402.
On the other hand, if the notification unit 421 determines that the size of the object is not equal to or larger than the predetermined size, the process proceeds to step S410.
Then, the notification unit 421 determines that the object is a vehicle m (step S402).
Next, the notification unit 421 acquires a detection signal outputted after the detection signal acquired in step S300 (step S404).

Next, the notification unit 421 determines whether the speed of the vehicle m is equal to or higher than a predetermined speed based on the detection signals acquired in steps S300 and S404 (step S406). The predetermined speed is, for example, a speed of several to several tens of km/h.
If the speed of the vehicle m is not equal to or higher than the predetermined speed (NO in step S406), the notification unit 421 advances the process to step S408.
On the other hand, when the notification unit 421 determines that the speed of the vehicle m is equal to or greater than the predetermined speed (YES in step S406), the notification unit 421 advances the process to step S412.
Then, the notification unit 421 determines whether or not the vehicle m has finished passing near the child C1 (step S408).
When the vehicle m has passed near the child C1 (YES in step S408), the notification unit 421 assumes that the child C1 is not in danger and ends the processing without initiating a notification to inform the child C1 of the approach of the vehicle m.
On the other hand, when the notification unit 421 determines that the vehicle m has not yet passed the vicinity of the child C1 (NO in step S408), the process returns to step S404. When repeating steps S404 to S406, if the vehicle m approaching the child C1 is not moving at a speed equal to or faster than a predetermined speed (NO in step S406), the notification unit 421 presumes that the approach will not pose a danger to the child C1, and does not start notification.

The alarm unit 421 also determines whether the movement pattern of the object matches the pattern of a suspicious person (step S410). The suspicious person pattern is, for example, a pattern in which the child C1 encounters a specific object a predetermined number of times or more during a unit period related to the child C1's movement (for example, on the way to or from school on a given day). The suspicious person pattern is, for example, a pattern in which an object moves back and forth on a route that matches the child C1's movement route during a unit period related to the child C1's movement. The suspicious person pattern is, for example, a pattern in which the characteristics of the object match the characteristics of the suspicious person in the suspicious person information.
If the alarm unit 421 determines that the object's movement pattern does not match that of a suspicious person (NO in step S410), it infers that the object is not a suspicious person, does not initiate an alarm to inform child C1 of the approach of the object, and ends the processing.
On the other hand, if the notification unit 421 determines that the movement pattern of the object matches the pattern of a suspicious person (YES side of step S410, i.e., the object is a suspicious person), the notification unit 421 advances the process to step S412.
Then, the notification unit 421 starts to notify the child C1 of the approach of the vehicle m or the suspicious person (step S412).

Next, the notification unit 421 acquires a detection signal outputted after the detection signal acquired in step S300 (step S414).
Next, the notification unit 421 determines whether or not the vehicle m or the suspicious person is approaching the child C1 based on the detection signal acquired in step S300 and the detection signal acquired in step S414 (step S416).
If the vehicle m or a suspicious person is approaching the child C1 (YES in step S410), the notification unit 421 advances the process to step S418.
On the other hand, if the vehicle m or the suspicious person is not approaching the child C1 (NO in step S410), the alarm unit 421 advances the process to step S420.

Then, the notification unit 421 increases the notification amount (step S418), and returns the process to step S416.
The notification unit 421 also determines whether the vehicle m or the suspicious person has finished passing near the child C1 (step S420).
When the notification unit 421 determines that the vehicle m or the suspicious person has not yet passed near the child C1 (NO in step S420), the notification unit 421 returns the process to step S416 and repeats the processes in steps S416 to S418.
On the other hand, if the vehicle m or the suspicious person has finished passing near the child C1 (YES in step S420), the notification unit 421 advances the process to step S422.
The notification unit 421 stops the notification (step S422).

As described above, the information and communication system 1B according to the third variant of the embodiment can more appropriately alert the child C1 to the approach of a vehicle or a suspicious person.

<Fourth Modification of Information Communication System>
The following describes a case where a predetermined action of a carrier is recognized at a geographical location. Note that the same reference numerals are used to designate the same components as those in the above-described embodiment, first modified example, second modified example, or third modified example, and the description thereof will be omitted or simplified.

28 is a diagram showing an example of a configuration of a first portable terminal 2C according to a fourth modified example of the embodiment. An information communication system 1B according to the fourth modified example of the embodiment includes a first portable terminal 2C instead of or in addition to the first portable terminal 2B.
28, the first portable terminal 2C includes a communication unit 21, a radar 22, a microphone 23, a position detection unit 24, a vibrator 25, a speaker 26, a display unit 27, an acceleration sensor 28, and a control unit 29C. In addition to the components included in the control unit 29, the control unit 29C includes, for example, an approach determination unit 291 and a motion recognition unit 292 as functional units.

The action recognition unit 292 recognizes whether or not the carrier has performed a predetermined action based on, for example, a detection result of a detection function (in this example, radar 22) provided in the first portable terminal 2C. The predetermined action is an action that is preferable for the carrier to perform at a geographical location. For example, the predetermined action is a stopping action of stopping at a geographical location. In addition, the predetermined action is, for example, a left-right checking action of checking left and right at a geographical location. In addition, the predetermined action is, for example, a hand raising action of raising a hand at a geographical location.
The detection range of the radar 22 includes the movable range of the wearer's head and the movable range of the wearer's hands. The motion recognition unit 292 recognizes a predetermined motion performed by the wearer based on the detection signal output by the radar 22, and transmits information indicating the recognized predetermined motion to the data center 4B.

Figure 29 is a diagram showing a schematic diagram of the timing of performing the recognition process of a predetermined action according to the fourth modified example of the embodiment. As described above, the first mobile terminal 2C starts an alert by the vibrator 25 at a position where the distance to the geographical position PT1 is less than the first predetermined distance dt1 (the position of "child C1 at time t" shown in the figure). In the example shown in Figure 29, child C1 performs a stopping action to stop at geographical position PT1. Below, the process when the action recognition unit 292 recognizes various predetermined actions will be described.

<When recognizing a stop operation>
The action recognition unit 292 transmits the position information acquired by the position detection unit 24 to the data center 4B. The data center 4B refers to the geographical position information stored in the storage unit 44B and identifies a geographical position PT1 that exists near the position of the child C1 indicated by the position information. The data center 4B transmits information indicating the identified geographical position PT1 to the first mobile terminal 2C. The action recognition unit 292 judges whether the position of the child C1 identified by the position detection unit 24 is the geographical position PT1 or not. Furthermore, based on the detection signal output by the radar 22, the action recognition unit 292 recognizes that the child C1 is stopped when there is no change in the surrounding environment acquired by the detection signal for a predetermined time. The action recognition unit 292 integrates the above-mentioned judgments and recognizes that the child C1 has performed a stopping action when the child C1 is stopped at the geographical position PT1. The action recognition unit 292 may perform processing to recognize a stop action from a remote position that is a predetermined distance (in the illustrated example, a third predetermined distance dt3) away from the geographical position PT1 to the geographical position PT1. In this case, the action recognition unit 292 may identify a remote position that is the third predetermined distance dt3 away from the geographical position PT1 in the vicinity of the current position acquired from the data center 4B, and perform processing to recognize a stop action from the identified remote position to the geographical position PT1.

<When detecting left/right checking behavior>
Based on the detection signal output by the radar 22, the action recognition unit 292 recognizes that a left/right checking action has been performed when the child C1's head (e.g., face, etc.) is turned to the left and right relative to the child C1.

<When recognizing hand raising actions>
Based on the detection signal output by the radar 22, the action recognition unit 292 recognizes that a hand-raising action has been performed when the child C1's hand (e.g., palm) is positioned upward relative to the child C1.

When the action recognition unit 292 recognizes that a specific action has been performed, it transmits information indicating that the specific action has been recognized to the data center 4B. If an alert has been started to notify the child C1 of the approach of a geographical location, and the notification unit 421 receives information indicating that a specific action has been performed from the action recognition unit 292, it stops the alert.

The action recognition unit 292 may be capable of recognizing all of the predetermined actions (e.g., the stopping action, the left and right checking action, and the hand raising action), or may be capable of recognizing only a part of the predetermined actions (e.g., only the left and right checking action and the hand raising action).

FIG. 30 is a flowchart showing an example of a notification stop process of the notification unit 421 according to the fourth modified example of the embodiment.
First, the notification unit 421 determines whether or not notification has started (step S500).
If notification has not started (NO in step S500), notification unit 421 repeats the process of step S500 and waits until notification starts.
On the other hand, if notification has started (YES in step S500), notification unit 421 advances the process to step S502.
Then, the notification unit 421 determines whether or not information indicating that a predetermined action has been performed has been received from the first portable terminal 2C (step S502).
If the predetermined action has not been performed (NO in step S502), the notification unit 421 repeats the process of step S502 and waits until it receives information indicating that the predetermined action has been performed.
On the other hand, if the notification unit 421 receives information indicating that a predetermined action has been performed (YES in step S502), the process proceeds to step S504.
Then, the notification unit 421 stops the notification (step S504).

As described above, the information and communication system 1B of the fourth modified embodiment can infer that a necessary action has been taken from the viewpoint of traffic safety when the child C1 performs a predetermined action at a geographical location, and can prevent unnecessary continuation of notifications.

<Notification method>
In the above-mentioned second to fourth modified examples, the notification unit 421 vibrates the vibrator 25 to notify the child C1 of various notifications, but the present invention is not limited to this. The notification may be performed, for example, by outputting a sound from the speaker 26. In this case, increasing the amount of notification means, for example, at least one of increasing the volume of the sound and increasing the frequency of sound output.

<About recognizing moving speed>
In the fourth modified example described above, the case has been described in which the action recognition unit 292 recognizes the moving speed of the child C1 based on the detection signal output by the radar 22, but this is not limiting. The moving speed of the child C1 may be recognized, for example, based on the output of the acceleration sensor 28. In this case, the action recognition unit 292 recognizes the moving speed of the child C1 by integrating the output of the acceleration sensor 28 and deriving the moving speed of the child C1.

<Notification based on movement speed>
In the second to fourth modified examples described above, the notification unit 421 starts the notification based on the distance from the child C1 to the geographical position PT1, but this is not limited to the above. The notification unit 421 may also issue a notification based on the moving speed of the child C1. For example, when the moving speed of the child C1 is fast, the notification unit 421 may speed up the timing of the start of the notification or increase the amount of notification compared to when the moving speed is slow. This allows the information communication system 1B to quickly issue a notification to the child C1 who is likely to run out into the road.

<Determining geographical location proximity>
In the above-mentioned third and fourth modified examples, the notification unit 421 determines the approach of the geographical position PT1 based on the position information of the child C1 and the geographical position information acquired by the position detection unit 24, but this is not limited to the above. The notification unit 421 may derive an expected arrival time at the geographical position PT1 based on the movement speed of the child C1, and determine whether the child C1 has approached the geographical position PT1 based on the derived expected arrival time. In this case, the notification unit 421 derives an expected arrival time at the geographical position PT1, and determines whether the geographical position PT1 has approached based on the derived expected arrival time.

<Geographical location settings>
In the second to fourth modified examples described above, the geographical position PT1 is predetermined and stored as geographical position information in the storage unit 44B, but the present invention is not limited to this. The geographical position PT1 may be specified, for example, from the second mobile terminal 3 held by the guardian of the child C1. In this case, the second mobile terminal 3 executes a program (software) used to set the geographical position PT1 as a program (software) stored in the storage unit (not shown) of the second mobile terminal 3. For example, by executing this program (software), a map image is displayed on the display unit 34. The guardian inputs the start and end positions of the route that the child C1 walks to and from school into a reception unit (not shown) provided in the second mobile terminal 3. The reception unit is, for example, an operation device such as a button, a keyboard, or a mouse.
In the following description, a case will be described in which the reception unit is a touch panel formed integrally with the display unit 34. The second mobile terminal 3 superimposes multiple candidate routes rt along which the child C1 is estimated to walk on the map image based on the start position and end position received by the reception unit, and presents the superimposed candidate routes rt along which the child C1 is actually walking on the display unit 34. The guardian selects the route rt along which the child C1 actually walks from the multiple candidate routes rt presented.

Next, the reception unit receives an operation by the guardian to specify a geographical position PT1 on the selected (specified) route rt at which the child C1 is to perform a predetermined action. The information on the geographical position PT1 in the memory unit 44B includes information indicating the geographical position PT1 specified by the guardian. This enables the information communication system 1B to notify the child C1 of the approach of the geographical position PT1 specified by the guardian.

The reception unit may specify the route rt that the child C1 will actually walk by having the guardian input the position of the route rt on the displayed map image by tracing it on the touch panel. Furthermore, if the position specified by the guardian's operation (e.g., the start position, end position, and geographical position PT1 of the route rt) is not on the route rt or on the sidewalk, the control unit 36 may correct the position to a position on the route rt or on the sidewalk near the specified position.

<Regarding notification of specified operations>
In the above description, the notification unit 421 notifies the child C1 of the approach of the geographical position PT1 or the approach of the vehicle m or a suspicious person, but this is not limited to the above. For example, the notification unit 421 may issue a notification to encourage a predetermined action at the geographical position PT1. In this case, when the approach determination unit 291 determines that the child C1 is approaching the geographical position PT1, the notification unit 421 issues a notification to encourage a predetermined action by outputting a voice from the speaker 26 such as "Stop at the intersection!" or "Check to the right and left, raise your hand and cross the crosswalk!"

<Notification of evaluation results of a specified action>
The notification unit 421 may also notify the result of evaluation of the predetermined action performed by the child C1. In this case, when the notification unit 421 receives information indicating that the child C1 has performed the predetermined action from the first mobile terminal 2C, the notification unit 421 may perform a notification praising the child C1. The notification praising the child C1 is a notification such as vibrating the vibrator 25 with a predetermined rhythm and outputting a voice praising the child C1 such as "You could check right and left! Good job!" from the speaker 26.
Furthermore, the notification unit 421 may issue a warning to the child C1 when the child C1 does not perform a predetermined action at the geographical position PT1. The warning to the child C1 may be, for example, by vibrating the vibrator 25 at a predetermined rhythm and outputting a voice warning the child C1 such as "It's dangerous if you don't stop properly!" from the speaker 26. The notification unit 421 may issue a warning result of the predetermined action each time the predetermined action is executed, or each time the distance from the child C1 to the geographical position PT1 becomes less than a first predetermined distance dt1.

In addition, when reporting the geographical position PT1, the vehicle m, or the approach of a suspicious person, the notification unit 421 does not need to report the evaluation result. This makes it possible for the notification unit 421 to prevent the reporting of the geographical position PT1 and the evaluation result from interfering with the reporting of the vehicle m or the suspicious person.
In addition, the notification unit 421 may not notify the evaluation result within a range within the first predetermined distance dt1 from the geographical position PT1. This makes it possible for the notification unit 421 to suppress the notification of the evaluation result from interfering with the notification of the geographical position PT1, the vehicle m, or a suspicious person.

<Scoring of prescribed movements>
The control unit 42B may also be configured to score the predetermined action performed by the child C1. The control unit 42B may score the predetermined action performed by the child C1 based on whether the child C1 performed the predetermined action at the geographical position PT1 or not, and transmit information indicating the scoring result to the second mobile terminal 3 of the guardian. The control unit 42B may also transmit the score result of the predetermined action to the second mobile terminal 3 every time the child C1 approaches the geographical position PT1.

<Regarding Information and Communication System 1B>
In the second to fourth modified examples described above, the configuration of the first mobile terminal 2, the first mobile terminal 2B, or the first mobile terminal 2C in the information communication system 1B and the configuration of the data center 4B have been described, but this is not limiting. For example, the configuration of the first mobile terminal 2, the first mobile terminal 2B, or the first mobile terminal 2C may be provided in the data center 4B, and the configuration provided in the data center 4B may be provided in the first mobile terminal 2, the first mobile terminal 2B, or the first mobile terminal 2C. Furthermore, the information stored in the storage unit 44B may be stored in a storage unit (not shown) of the first mobile terminal 2, the first mobile terminal 2B, or the first mobile terminal 2C.
For example, in the second to fourth modified examples described above, the notification unit 421 of the data center 4B determines the approach of the first portable terminal 2 to the geographical position PT1 based on the position information acquired by the position detection unit 24 of the first portable terminal 2 and the geographical position information stored in the storage unit 44B, but is not limited to this. The approach determination unit 291 of each of the first portable terminals 2B, 2C shown in the third and fourth modified examples described above may receive geographical position information from the data center 4B and determine the approach of the first portable terminal 2 to the geographical position PT1.

In the above-described embodiment and each modified example, each of the first mobile terminals 2, 2B, 2C is equipped with a radar 22 consisting of a front radar and a rear radar, but is not limited to this, and may be equipped with a camera, a LIDAR (Light Detection and Ranging or Laser Imaging Detection and Ranging), an infrared sensor, or the like instead of the radar 22.

<Example of Operation of First Mobile Terminal>
Below, an example of the operation of each of the first mobile terminals 2, 2B, and 2C in the above-mentioned embodiment and each modified example will be described. Note that the same reference numerals are used to designate configurations similar to those in the above-mentioned embodiment, first modified example, second modified example, third modified example, or fourth modified example, and the description will be omitted or simplified. In addition, below, the information communication system 1B and the first mobile terminal 2C according to the above-mentioned fourth modified example will be described as an example, but similar operations may be performed in each of the information communication systems 1, 1A and each of the first mobile terminals 2, 2B.
FIG. 31 is a diagram showing an example of an operation according to the position of the first portable terminal 2C according to the fourth modified example of the embodiment.
As shown in Fig. 31, the position of the first portable terminal 2 is within a first registered area (e.g., home, etc.) between time t0 and time t3. The first registered area includes, for example, a start position of a predetermined route. Information on the first registered area (e.g., position, shape, size, etc.) is stored as area information in the first portable terminal 2C and the data center 4B. In addition, the first portable terminal 2C is in a charging state until time t1, and charging of a battery (not shown) mounted on the first portable terminal 2C is being performed.
At time t1, when charging of the first portable terminal 2C is terminated, for example by removing a charging cable (not shown) from the first portable terminal 2C, the first portable terminal 2C requests the data center 4B to transmit updated geographical location information and area information.

The geographical location information and area information are registered in advance by the second portable terminal 3, stored in the memory unit 44B of the data center 4B, and stored in the first portable terminal 2C via the data center 4B.
The geographical position information is information on a geographical position where it is necessary to perform a predetermined action such as a stopping action, a left/right checking action, a hand raising action, etc. The geographical position is, for example, an intersection on a route.
The area information is information on a predetermined place that the carrier of the first mobile terminal 2C often visits. The predetermined place is, for example, a home, a school, an after-school program, or other facilities that are set for a child. The area information includes, for example, the first registered area (for example, a home) described above and a second registered area (for example, a school) described below.

At time t2, the first portable terminal 2C starts receiving a positioning signal by the position detection unit 24 and periodically transmits position information to the data center 4B. The first portable terminal 2C compiles a plurality of pieces of position information for a predetermined time period (e.g., every 1 s) based on the positioning signal acquired by the position detection unit 24 at predetermined cycles (e.g., every 1 s) over a predetermined time period (e.g., 10 s), and transmits the compiled pieces of position information for the predetermined time period to the data center 4B. For example, the first portable terminal 2C compiles data for 10 positioning signals acquired in a 1 s cycle every 10 s and transmits the compiled data to the data center 4B.
The first portable terminal 2C may periodically transmit information on the remaining capacity (charge level) of a mounted battery (not shown) to the data center 4B, similar to the periodic transmission of the location information. For example, the first portable terminal 2C may transmit information on the charge level detected every 10 seconds to the data center 4B each time the information is detected (i.e., every 10 seconds). The first portable terminal 2C may also transmit the location information and the charge level information to the data center 4B at the same time.

At time t3, the first portable terminal 2C, having exited the first registered area, determines that it has departed from the first registered area by performing an arrival and departure determination process (area determination) for a predetermined location based on the area information and position information. The first portable terminal 2 transmits the result of the area determination to the data center 4B and to the second portable terminal 3 via the data center 4B, for example, by a PUSH notification.

Between time t3 and time t6, the position of the first portable terminal 2C is outside (outside the boundary of) the predetermined area specified by the geographical position information and area information stored in the first portable terminal 2C.
At time t4 and time t5, the first portable terminal 2C periodically transmits the above-mentioned location information.

Between time t6 and time t8, the position of the first portable terminal 2C is within a predetermined area including a geographical position where execution of a predetermined operation is required. The predetermined area including the geographical position is an area (geographical position determination area) for determining whether or not the first portable terminal 2C is approaching the geographical position and whether or not a warning is required. The geographical position determination area is, for example, the predetermined range ARP (a range of a position away from the geographical position PT1 by a first predetermined distance dt1) shown in FIG. 21 and FIG. 29 above.
At time t6, the first portable terminal 2C, having entered the geographical position determination area, determines that it is necessary to notify the user of an approach to the geographical position by a process of determining whether or not to notify the user of the approach to the geographical position and a warning based on the geographical position information and the position information. After time t6, the first portable terminal 2C notifies the user of an approach to the geographical position by activating the vibrator 25 or the like in accordance with the control of the warning unit 421.

At time t7, when the first portable terminal 2C detects the execution of a predetermined action (for example, a stopping action, a left/right checking action, a hand raising action, etc.) by the carrier, it determines that the predetermined action has been executed by a determination process (action determination) of whether or not the predetermined action has been executed at a geographical location where the execution of the predetermined action is required. The first portable terminal 2C transmits the determination result of the action determination to the data center 4B.
Furthermore, at time t8, if the first portable terminal 2C exits the geographical position determination area without detecting the execution of a predetermined action by the carrier within the geographical position determination area, the first portable terminal 2C determines by the action determination that the predetermined action was not executed. The first portable terminal 2C transmits the determination result of the action determination to the data center 4B.

Between time t8 and time t11, the position of the first portable terminal 2C is outside (outside the boundary of) the predetermined area specified by the geographical position information and area information stored in the first portable terminal 2C.
At time t9 and time t10, the first portable terminal 2C periodically transmits the above-mentioned location information.

After time t11, the location of the first mobile terminal 2C is within a second registered area (e.g., a school). The second registered area includes, for example, the end location of a predetermined route. Information on the second registered area (e.g., location, shape, size, etc.) is stored as area information in the first mobile terminal 2C and the data center 4B.
At time t11, the first portable terminal 2C, having entered the second registered area, determines that it has arrived at the second registered area by a process of determining arrival and departure from a predetermined location (area determination) based on the area information and the position information. The first portable terminal 2C transmits the result of the area determination to the data center 4B and the second portable terminal 3 via the data center 4B, for example, by a PUSH notification.

<Example of Notification Operation of First Mobile Terminal>
Below, examples of the notification operation of each of the first portable terminals 2, 2B, and 2C in the second to fourth modified examples of the above-mentioned embodiment will be described. Note that the same reference numerals are used to designate configurations similar to those in the second, third, or fourth modified examples described above, and descriptions thereof will be omitted or simplified. In addition, below, the information communication system 1B and the first portable terminal 2 according to the above-mentioned second modified example will be described as an example, but similar operations may be performed in each of the first portable terminals 2B and 2C.

In the second to fourth variants described above, the notification unit 421 of the data center 4B sets the first specified distance dt1 as a single distance judgment threshold for the distance from the position of the first mobile terminal 2 to the geographical position PT1, but this is not limited to this.
Fig. 32 is a diagram showing an example of a timing for changing the amount of notification. Fig. 33 is a diagram showing an example of a correspondence relationship between the amount of notification and the timing for changing the amount of notification. Fig. 34 is a diagram showing an example of the amount of notification.

As shown in FIG. 32, the notification unit 421 may set multiple distance determination thresholds for the distance from the first portable terminal 2 to the geographical position PT1, and change the notification amount in response to the multiple distance determination thresholds. The multiple distance determination thresholds are, for example, three distance determination thresholds, a first distance determination threshold D1, a second distance determination threshold D2, and a third distance determination threshold D3. The first distance determination threshold D1 is greater than the second distance determination threshold D2, and the second distance determination threshold D2 is greater than the third distance determination threshold D3. The notification amount is, for example, at least one of the amplitude of vibration of the vibrator 25 and the frequency of vibration (density of vibration per unit time).

33, the notification unit 421 sets first to third notification amounts A1, A2, and A3 that change stepwise in response to the first to third distance determination thresholds D1, D2, and D3, for example. The notification unit 421 associates the first notification amount A1 with a range from the geographical position PT1 that is less than the first distance determination threshold D1 and is equal to or greater than the second distance determination threshold D2. The notification unit 421 associates the second notification amount A2, which is greater than the first notification amount A1, with a range from the geographical position PT1 that is less than the second distance determination threshold D2 and is equal to or greater than the third distance determination threshold D3. The notification unit 421 associates the third notification amount A3, which is greater than the second notification amount A2, with a range from the geographical position PT1 that is less than the third distance determination threshold D3.
For example, as shown in FIG. 34, the notification amounts A1, A2, and A3 are set so that the vibration densities in a predetermined cycle TA are different.
In this way, by changing the notification amount in a stepped manner according to the distance from the first portable terminal 2 to the geographical position PT1, it is possible to allow the child C1 to clearly recognize the approach to and departure from the geographical position PT1.

In addition, the notification unit 421 changes the notification amount in a step-like manner according to the distance from the first portable terminal 2 to the geographical position PT1, but is not limited to this, and may change the notification amount smoothly. For example, a smooth change is a linear change or a change along an appropriate curve. Fig. 35 is a diagram showing an example of a correspondence relationship between the change timing of the notification amount and the notification amount.
As shown in FIG. 35, the notification unit 421 may, for example, change the notification amount to a linearly increasing trend from zero to a third notification amount A3 as the distance from the first mobile terminal 2 to the geographical position PT1 decreases from the first distance judgment threshold D1 toward zero.
In this way, by smoothly changing the amount of notification according to the distance from the first mobile terminal 2 to the geographical position PT1, it is possible to allow the child C1 to recognize the continuous changing trend of approaching and moving away from the geographical position PT1.

The notification unit 421 may also change the notification amount according to the distance from the first mobile terminal 2 to the geographical position PT1 differently when the first mobile terminal 2 approaches the geographical position PT1 and when the first mobile terminal 2 moves away from the geographical position PT1. In other words, the change tendency of the notification amount may be asymmetric with respect to the geographical position PT1 when the first mobile terminal 2 approaches and moves away from the geographical position PT1. Each of FIG. 36 and FIG. 37 is a diagram that shows an example of the correspondence between the timing of changing the notification amount and the notification amount.

For example, as shown in FIG. 36, when the first portable terminal 2 approaches the geographical position PT1, the notification unit 421 changes the notification amount from zero to a third notification amount A3 in a linear increasing trend as the distance from the first portable terminal 2 to the geographical position PT1 decreases from the first distance determination threshold D1 to zero. When the first portable terminal 2 moves away from the geographical position PT1, the notification unit 421 changes the notification amount from the third notification amount A3 to zero in a linear decreasing trend as the distance from the first portable terminal 2 to the geographical position PT1 increases from zero to a predetermined fourth distance determination threshold D4. Note that the fourth distance determination threshold D4 is smaller than the first distance determination threshold D1. In other words, the notification unit 421 relatively increases the degree of the decreasing trend of the notification amount on the side of the first portable terminal 2 moving away from the geographical position PT1 to a degree of the increasing trend of the notification amount on the side of the first portable terminal 2 moving toward the geographical position PT1.
In this way, by changing the notification amount separately for the approaching side and the farther side with respect to the geographical position PT1, it is possible to perform appropriate notification for each of the approaching side and the farther side. Also, by making the degree of change in the notification amount relatively larger for the farther side than for the approaching side, it is possible to prevent excessive notification for the farther side.

37, when the first portable terminal 2 approaches the geographical position PT1, the notification unit 421 sequentially associates each notification amount A1, A2, A3 that increases in a stepwise manner with each distance determination threshold D1, D2, D3. When the first portable terminal 2 moves away from the geographical position PT1, the notification unit 421 maintains the notification amount at the third notification amount A3 until the distance from the first portable terminal 2 to the geographical position PT1 increases from zero toward a predetermined fifth distance determination threshold D5. When the distance from the first portable terminal 2 to the geographical position PT1 exceeds the fifth distance determination threshold D5, the notification unit 421 sets the notification amount to zero in a stepwise manner. Note that the fifth distance determination threshold D5 is greater than the first distance determination threshold D1. In other words, the notification unit 421 makes the distance between the notification stop position and geographical position PT1 on the moving away side of the first mobile terminal 2 relative to the geographical position PT1 larger than the distance between the notification start position and geographical position PT1 on the moving towards side of the first mobile terminal 2 relative to the geographical position PT1.
In this way, by making it more difficult to stop the ongoing notification on the distant side than on the approaching side with respect to the geographical position PT1, it is possible to suppress the occurrence of hunting, in which the start and stop of the notification is frequently repeated. Also, by making the amount of notification zero in a single step on the distant side, it is possible to make the child C1 clearly recognize that the notification has stopped.

In the above-mentioned example of the notification operation of each of the first mobile terminals 2, 2B, 2C, the notification unit 421 of the data center 4B changes the amount of notification in response to a change in the distance from the position of each of the first mobile terminals 2, 2B, 2C to the geographical position PT1, but this is not limited to the above. For example, the notification unit 421 may change the amount of notification in response to the elapsed time between when each of the first mobile terminals 2, 2B, 2C enters and when it exits a predetermined geographical position determination area set for the geographical position PT1.

In the second to fourth variants described above, the geographical position PT1 may be a point (e.g., a position distinguished by latitude and longitude) or an area of a predetermined shape and size (e.g., a range of a predetermined size including a position distinguished by latitude and longitude).
For example, when the geographical position PT1 is an area of a predetermined shape and size, when setting the distance from the position of the first mobile terminal 2 to the geographical position PT1, the notification unit 421 may use the center or center of gravity of the area of the geographical position PT1 as the reference position for setting the distance, or may use an appropriate position on the outer edge of the area of the geographical position PT1 as the reference position for setting the distance.
FIG. 38 is a diagram showing a schematic example of a geographical position PT1 which is an area of a predetermined shape and size.
For example, as shown in FIG. 38, when the geographical position PT1 is set as a circular area including a center Pa, the notification unit 421 sets the distance from the position of the first portable terminal 2 to the geographical position PT1 as the distance from the position of the first portable terminal 2 to the center Pa or the outer edge Pe of the circular area.
The shape of the area of the geographical position PT1 is not limited to a circle, but may be any other suitable shape, such as an ellipse or a rectangle.

In addition, a program for realizing all or part of the functions of each data center 4, 4A, 4B in the present invention may be recorded on a computer-readable recording medium, and the program recorded on the recording medium may be read into a computer system and executed to perform all or part of the processing performed by each data center 4, 4A, 4B. Note that the term "computer system" here includes hardware such as an OS and peripheral devices. The term "computer system" also includes a WWW system equipped with a home page providing environment (or display environment). The term "computer-readable recording medium" refers to portable media such as flexible disks, optical magnetic disks, ROMs, and CD-ROMs, as well as storage devices such as hard disks built into a computer system. The term "computer-readable recording medium" also includes those that hold a program for a certain period of time, such as volatile memory (RAM) inside a computer system that becomes a server or client when a program is transmitted via a network such as the Internet or a communication line such as a telephone line.

The above program may also be transmitted from a computer system in which the program is stored in a storage device or the like to another computer system via a transmission medium, or by transmission waves in the transmission medium. Here, the "transmission medium" that transmits the program refers to a medium that has the function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line. The above program may also be one that realizes part of the above-mentioned functions. Furthermore, it may be one that can realize the above-mentioned functions in combination with a program already recorded in the computer system, a so-called difference file (difference program).

The embodiments of the present invention are presented as examples and are not intended to limit the scope of the invention. These embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the spirit of the invention. These embodiments and their modifications are within the scope of the invention and its equivalents as set forth in the claims, as well as the scope and spirit of the invention.

The present invention provides an alarm system that can warn moving people at a specified location.

1, 1A, 1B...information and communication system (alarm system), 2, 2B, 2C...first mobile terminal (terminal), 3...second mobile terminal (other terminal), 4, 4A, 4B...data center (server), 5...server, 6...network, 21...communication unit, 22...radar (speed acquisition unit), 23...microphone, 24...position detection unit (position acquisition unit), 25...vibrator (alarm unit), 26...speaker (alarm unit), 27...display unit, 28...acceleration sensor (speed acquisition unit), 29...control unit (alarm unit), 31...communication unit, 32...microphone, 33...operation unit, 34...display unit (position setting unit), 35...speaker, 36...control unit (alarm unit, position setting unit, position correction unit), 41...communication unit, 42, 42A, 42B...control unit (position acquisition unit, position determination unit, alarm unit, motion determination unit), 43...model storage unit, 44, 44A, 44B...storage unit, 45...voice recognition model storage unit, 46...voice recognition unit, 47...scenario storage unit, 292...motion recognition unit (motion determination unit, speed acquisition unit, output unit), 421...alarm unit (alarm correction unit, output unit), ARP...predetermined range (distant position, alarm area), C1...child (moving person, pedestrian, child), PT1...geographical position (set position)

Claims (13)

a first terminal carried by a mobile person;
a storage unit that is provided in the first terminal or a server that can communicate with the first terminal and that stores a preset location that is a geographical location that is preset, a movement trajectory of the first terminal, and an operation confirmation result of the mover ;
a control unit that notifies the approach of the first terminal to the set position at a distanced position that is a predetermined distance from the set position ,
The control unit outputs information regarding a movement trajectory of the first terminal and an operation confirmation result of the mover to a second terminal different from the first terminal.
Notification system. The second terminal is a terminal used by a guardian of the moving person.
The notification system according to claim 1 . The control unit calculates a score for a predetermined action of the mover during movement, and outputs the calculated score to the second terminal.
The notification system according to claim 1 or 2. The control unit changes the content of the sound to be output from the second terminal in accordance with the score.
The notification system according to claim 3 . The first terminal communicates with the second terminal to enable a dialogue between the mover and the guardian.
The notification system according to claim 2 . Further comprising a data center capable of communicating with the first terminal and the second terminal,
The first terminal transmits the collected voice of the mover to the data center;
the data center performs a speech recognition process on the speech, generates a speech in response to the speech based on a result of the speech recognition process, and transmits the generated speech to the first terminal;
The notification system according to any one of claims 1 to 5. the data center generates a voice of advice based on a result of the voice recognition processing and transmits the voice of advice to the first terminal;
The notification system according to claim 6. The set position is set at a specific position on a road along which the traveler travels where a danger to the traveler may occur.
The notification system according to any one of claims 1 to 7. the road includes an intersection where the road intersects;
The set position is set at the intersection.
The notification system according to claim 8. The road includes a roadway on which vehicles travel and a sidewalk separated from the roadway,
The setting position is set on the sidewalk at the intersection.
The notification system according to claim 9. The setting position is set based on input information regarding position designation for the first terminal or the second terminal.
The notification system according to any one of claims 8 to 10. The input information indicates a position on a map including a road area and a non-road area,
a position correction unit that corrects the input information to an adjacent road area when the input information is located in the non-road area;
The notification system according to claim 11. The road area includes a roadway area and a sidewalk area,
When the input information is located in the non-road area or the roadway area, the position correction unit corrects the input information to the adjacent sidewalk area.
The notification system according to claim 12.

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