JP2016157178A - Determination device, portable terminal and determination method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To alert a user who uses a portable terminal while moving to the danger of collision with people around the user according to the dangerousness.SOLUTION: A determination device 2 comprises a suspicious person density calculation section 212 which calculates the density of users of a portable terminal 1 who are texting while walking in an area identified by each area ID stored in an area DB 221, a countermeasure necessity determination section 213 which determines a necessary area of countermeasure by comparing a density value calculated by the suspicious person density calculation section 212 with a predetermined threshold value, and a countermeasure section 214 which transmits warning information to the portable terminal 1 belonging to the area which is determined as a necessary area of countermeasure by the countermeasure necessity determination section 213.SELECTED DRAWING: Figure 3

Description

  The present invention relates to a technique for alerting a user who uses a mobile terminal while moving.

  In recent years, “walking smartphones” that walk while using mobile terminals such as smartphones have become a social problem. Walking smartphones become extremely narrow in visibility and distracted by attention, causing contact accidents with other passers-by. Therefore, various techniques for preventing walking smartphones have been developed in recent years. For example, Patent Document 1 describes a portable electronic device that issues a warning to a user when the user's movement state is detected and the user has detected a use state in which the device is being used. ing.

JP 2014-154901 A

  However, with the technology described in Patent Document 1, a warning is issued even in a safe situation where no one is walking around. With the technique described in Patent Document 1, it is not possible to determine whether or not a warning is necessary according to the traffic conditions of surrounding people.

  The present invention has been made in view of such circumstances, and an object of the present invention is to alert a user who uses a mobile terminal while moving according to the possibility that the user will come into contact with surrounding people. And

  In order to solve the above problems, the present invention provides an area determination unit that determines an area in which each mobile terminal is present among one or more areas based on position information of each of the plurality of mobile terminals, For each of the above areas, based on the number of mobile terminals present in the area, it is determined that alerting is performed by the countermeasure necessity determining unit that determines an area to be alerted and the countermeasure necessity determining unit. A determination device is provided that includes a countermeasure unit that transmits control information instructing to alert a user of a mobile terminal that is in a moving state and in a used state in a single area.

  In a preferred aspect, the countermeasure necessity determination unit is based on the number of mobile terminals that have been acquired in each of the one or more areas and are in a moving state and in use in the area. Thus, the area for alerting may be determined.

  In a further preferred aspect, the countermeasure unit alerts the user of the mobile terminal that is in a moving state and in use in the one area to the output device in the one area. Control information for instructing output of the output information may be transmitted.

  In a further preferred aspect, the determination device includes an attribute determination unit that determines an attribute of a user of the mobile terminal existing in the one area, and an output that determines output information based on the attribute determined by the attribute determination unit. An information determination unit, and the countermeasure unit may transmit control information for instructing output of the output information determined by the output information determination unit to the output device.

  In a further preferred aspect, the countermeasure unit has, for one mobile terminal that has acquired information that it is in a moving state and is in a use state, out of the mobile terminals existing in the one area, You may transmit the control information which instruct | indicates alerting with respect to a user.

  In a further preferred aspect, the determination device includes a moving direction average calculating unit that calculates an average of moving directions of a plurality of mobile terminals existing in the one area, and a moving direction specifying that specifies the moving direction of the one mobile terminal. And the countermeasure unit is configured to provide the one portable terminal with the difference according to the difference between the average calculated by the moving direction average calculating unit and the moving direction specified by the moving direction specifying unit. Control information instructing an alert to a user of one mobile terminal may be transmitted.

  In another preferable aspect, the determination device includes a movement direction identification unit that determines a movement direction of one mobile terminal existing in an area adjacent to the one area, and a movement direction determined by the movement direction identification unit. And a movement direction determination unit that determines whether the direction is from the adjacent area toward the one area, and the movement determined by the movement direction identification unit as a result of the determination by the movement direction determination unit. When the direction is a direction from the adjacent area to the one area, the countermeasure unit instructs the one mobile terminal to alert the user of the one mobile terminal. May be sent.

  The present invention also includes a position information acquisition unit that acquires position information of the terminal itself, a movement state determination unit that determines whether or not the mobile terminal is in a movement state, and a use state determination unit that determines whether or not the terminal is in use. And when both the determination by the movement state determination unit and the determination by the use state determination unit are affirmative, the position information acquired by the position information acquisition unit and the identification information of the terminal itself are determined as the determination. Based on the control information received by the receiving unit, the receiving unit for receiving control information for instructing the user of the own terminal from the transmitting unit, and the control unit received by the receiving unit. Provided is a portable terminal provided with an output unit that outputs output information that alerts the user.

  In addition, the present invention provides a moving state determination unit that determines whether or not the mobile unit is in a moving state, a usage state determination unit that determines whether or not the mobile unit is in a used state, determination by the moving state determination unit, and determination of the usage state An output unit that outputs output information that alerts the user of the terminal when the information indicating that the determination by the unit is affirmative and the surroundings are congested is acquired. Provide mobile devices.

  Moreover, this invention is the determination method performed by the determination apparatus, Comprising: The step which determines the area in which each portable terminal exists among one or more areas based on the positional information on each of several portable terminals. And, for each of the one or more areas, a step of determining an area to be alerted based on the number of mobile terminals present in the area, and a movement existing in the area that has been determined to be alerted And a step of transmitting control information instructing an alert to a user of a mobile terminal that is in a state of use and in a state of use.

  ADVANTAGE OF THE INVENTION According to this invention, the user who uses a portable terminal while moving can be alerted to the said user according to possibility that the surrounding person will contact.

1 is a block diagram illustrating an example of a configuration of a communication system 100. FIG. 2 is a block diagram illustrating an example of a configuration of a mobile terminal 1. FIG. 3 is a block diagram illustrating an example of a configuration of a determination device 2. FIG. It is a figure which shows an example of area DB221. It is a figure which shows an example of dangerous person DB222. It is a figure which shows an example of dangerous person density DB223. It is a figure which shows an example of notification destination DB224. It is a sequence diagram which shows an example of the operation | movement for registering information on a dangerous person in dangerous person DB222. It is a sequence diagram which shows an example of the operation | movement for alerting a dangerous person.

1. Embodiment 1-1. Configuration of Communication System FIG. 1 is a block diagram showing an example of a configuration of a communication system 100 according to an embodiment of the present invention. As shown in the figure, the communication system 100 includes a plurality of mobile terminals 1-1 to 1-n (hereinafter collectively referred to as “mobile terminal 1” unless otherwise distinguished) and a determination device 2. With. The portable terminal 1 and the determination device 2 are connected to each other via the network 3. The network 3 is configured by, for example, a mobile phone network, a wireless LAN (Local Area Network), or the Internet. The communication system 100 is a system for issuing a warning to a user who uses the mobile terminal 1 while moving.

1-2. Configuration of Mobile Terminal FIG. 2 is a block diagram illustrating an example of the configuration of the mobile terminal 1. The portable terminal 1 is a portable electronic device such as a smartphone or a tablet terminal. As shown in the figure, the mobile terminal 1 includes, for example, a control unit 11, a storage unit 12, a communication unit 13, a touch screen unit 14, a positioning unit 15, an acceleration sensor 16, and a camera 17. Prepare.

  The control unit 11 includes an arithmetic processing device such as a CPU (Central Processing Unit) and a memory. The CPU controls each unit of the mobile terminal 1 by executing a program stored in the memory or the storage unit 12. The functional configuration of the control unit 11 will be described later.

  The storage unit 12 is a storage device such as a flash memory or a hard disk. The storage unit 12 stores programs executed by the CPU and various data. In addition, the storage unit 12 stores the identification ID of the mobile terminal 1.

  The communication unit 13 is a communication interface such as a data communication card. The communication unit 13 controls communication with the determination device 2.

  The touch screen unit 14 includes a display panel and a touch sensor superimposed on the display panel. The display panel is, for example, a liquid crystal display or an organic EL (Electro-luminescence) display. The touch sensor is, for example, a capacitive type or resistive type touch sensor. The touch screen unit 14 displays an image under the control of the control unit 11 and accepts an instruction using a finger or a stylus by the user. When warning information to be described later is received from the determination device 2, the touch screen unit 14 displays a warning message and a heat map for the user based on the warning information. The touch screen unit 14 is an example of an output unit that outputs information that alerts the user of the mobile terminal 1 (for example, sound, image, video, vibration, or a combination thereof). Note that the touch screen unit 14 is an example of an input / output unit, and an input key or a microphone may be provided as an input unit, and a liquid crystal display or a speaker may be provided as an output unit.

  The positioning unit 15 is a means for measuring the position of the mobile terminal 1. For example, the positioning unit 15 measures the position of the mobile terminal 1 using a satellite positioning system such as GPS (Global Positioning System), and obtains position information (specifically, latitude / longitude information) representing the measured position. It outputs to the control part 11 with the time information which shows the time when positioning was performed. Note that the positioning method is not limited to that using a satellite positioning system, and other well-known positioning methods such as three-point positioning using a wireless LAN may be employed. In the present embodiment, the position information is not limited to latitude and longitude as long as the position of the mobile terminal 1 can be identified, and for example, identification information of a base station may be used.

  The acceleration sensor 16 is means for sensing the movement of the mobile terminal 1. The acceleration sensor 16 outputs sensor data indicating the displacement of the mobile terminal 1 to the control unit 11.

  The camera 17 is a digital camera including an imaging element such as a CCD (Charge Coupled Device) and a lens. The camera 17 outputs the generated image data to the control unit 11. This camera 17 is an in-camera, and is used for photographing the face of the user who is viewing the screen displayed on the touch screen unit 14. Note that the camera 17 may shoot a moving image as well as a still image.

  Next, the functional configuration of the control unit 11 will be described. When the CPU of the control unit 11 executes the program, the functions of the walking detection unit 111, the face detection unit 112, the single danger situation determination unit 113, and the notification information generation unit 114 are realized as shown in FIG. Is done.

  The walking detection unit 111 determines whether or not the mobile terminal 1 is moving based on the sensor data output from the acceleration sensor 16. As a result, when the mobile terminal 1 is moving (that is, when the user of the mobile terminal 1 is moving), a determination result indicating that the mobile terminal 1 is moving is output to the single danger situation determination unit 113. To do. In addition, when the user of the mobile terminal 1 is moving while using the mobile terminal 1, there is a tendency to walk more slowly than usual. Even if it exists, you may make it determine with moving.

  The face detection unit 112 performs face recognition on the image data output from the camera 17 and determines whether or not the user's face is included in the image. As a result, when the user's face is included (that is, when the user is using the mobile terminal 1), the determination result indicating that the user is in use is sent to the single danger situation determination unit 113. Output.

  When the single danger situation determination unit 113 acquires the determination result indicating that the user is moving from the walking detection unit 111 and the determination result that the user is using the face detection unit 112, the single danger situation determination unit 113 determines that the user is walking on the smartphone. It is determined that it is in a state, and a determination result to that effect is output to the notification information generation unit 114. In the present specification, the “walking smartphone state” refers to a state in which a user of a portable electronic device such as a smartphone is moving while using the device. The usage target is not limited to a smartphone, and the moving state is not limited to walking (that is, including a running state).

  When the notification information generation unit 114 acquires a determination result indicating that the user is walking and in a smartphone state from the single danger situation determination unit 113, the notification information generation unit 114 acquires an identification ID that is information for identifying the mobile terminal 1 from the storage unit 12. The position information and the time information are acquired from the positioning unit 15, and notification information including the acquired information is transmitted to the determination device 2 via the communication unit 13. The notification information generation unit 114 periodically generates notification information and transmits it to the determination device 2 while the determination result indicating that the user is walking and is in a smartphone state is acquired from the single danger situation determination unit 113. You may make it do.

1-3. Configuration of Determination Device FIG. 3 is a block diagram illustrating an example of the configuration of the determination device 2. The determination device 2 is a computer device for determining whether or not a warning is required for a user of the mobile terminal 1 in a walking smartphone state. The determination device 2 includes a control unit 21, a storage unit 22, and a communication unit 23 as shown in FIG.

  The control unit 21 includes an arithmetic processing unit such as a CPU and a memory. The CPU controls each unit of the determination device 2 by executing a program stored in the memory or the storage unit 22. The functional configuration of the control unit 21 will be described later.

  The storage unit 22 is a storage device such as a hard disk. The storage unit 22 stores programs executed by the CPU and various data. In addition, the storage unit 22 stores an area database (hereinafter, the database is referred to as “DB”) 221, a dangerous person DB 222, a dangerous person density DB 223, and a notification destination DB 224. These databases are not necessarily stored in the storage unit 22, and may be stored on other devices on the network 3 accessible by the determination device 2.

  FIG. 4 is a diagram illustrating an example of the area DB 221. As shown in the figure, the area DB 221 is an area identification information (hereinafter referred to as “area ID”), which is a unit for determining a dangerous person density, which will be described later, and an area reference position, which is information indicating the area of the area. Are stored in association with the latitude and longitude of the area and the size of the area. This area DB 221 is referred to in order to acquire the corresponding area ID based on the position information received from the mobile terminal 1. The area size in the present embodiment is not limited to equal division. This is because when Japan is divided into 100m square meshes, the mesh is too fine in depopulated areas and the fine distribution cannot be captured in the city center. Area data may be reconstructed periodically depending on the situation.

  FIG. 5 is a diagram illustrating an example of the dangerous person DB 222. As shown in the figure, the dangerous person DB 222 stores the identification ID, position information, time information, and area ID of the mobile terminal 1 in association with each other. Here, the identification ID, position information, and time information are information included in the notification information received from the mobile terminal 1, and the area ID refers to the area DB 221 based on the received position information. It is information specified by. The dangerous person DB 222 stores information related to the position of the user in the walking smartphone state (ie, the dangerous person).

  FIG. 6 is a diagram illustrating an example of the dangerous person density DB 223. The dangerous person density DB 223 stores an area ID, density information, and time information in association with each other as shown in FIG. Here, the density information is information indicating the density of the dangerous person in the area identified by the associated area ID. The time information is information indicating the time when the density indicated by the associated density information is calculated. This dangerous person density DB 223 is referred to in order to create a heat map described later.

  FIG. 7 is a diagram illustrating an example of the notification destination DB 224. As shown in the figure, the notification destination DB 224 stores the identification ID of the mobile terminal 1, notification destination information, and notification destination attribute information in association with each other. This notification destination DB 224 is referred to in order to acquire a notification destination (in other words, a communication address) of the mobile terminal 1.

  Next, the communication unit 23 is a communication interface such as a data communication card. The communication unit 23 controls communication with the mobile terminal 1.

  Next, the functional configuration of the control unit 21 will be described. When the CPU of the control unit 21 executes the program, as shown in FIG. 3, the area determination unit 211, the dangerous person density calculation unit 212, the countermeasure necessity determination unit 213, the countermeasure unit 214, and the heat map A function of creating unit 215 is realized.

  The area determination unit 211 acquires notification information received from the mobile terminal 1 from the communication unit 23, and acquires an area ID corresponding to position information included in the notification information from the area DB 221. Here, the area ID corresponding to the position information is an area ID of an area including the position represented by the position information. The area determination unit 211 stores the acquired area ID and notification information (specifically, identification ID, position information, and time information) in the dangerous person DB 222 in association with each other.

  The dangerous person density calculation unit 212 calculates, for the area identified by each area ID stored in the area DB 221, a dangerous person density that is the density of the dangerous person in the area. The dangerous person density calculation unit 212 performs the calculation at a constant cycle. Specifically, if the dangerous person density calculation unit 212 calculates the dangerous person density for the area ID = X, first, a predetermined time (hereinafter referred to as “T1 second”) is traced back from the current time. Calculate the time. Then, the number of identification IDs that are associated with the area ID = X and that are associated with the time after the calculated time and less than the current time and associated with the dangerous person DB 222 are counted. And the area of area ID = X is calculated | required with reference to area DB221, and a dangerous person density is calculated by dividing the number of counted identification ID by the area of the calculated | required area. For example, when the area of area ID = X is a square and the length of one side is stored in the area DB 221 as the area size of the area, the number of identification IDs counted is 2 of the length of the one side. The dangerous person density is calculated by dividing by the power.

  When the dangerous person density is calculated, the dangerous person density calculating unit 212 passes the value of the dangerous person density and the area ID = X to the countermeasure necessity determining unit 213. Further, the dangerous person density calculating unit 212 updates the value of the dangerous person density associated with the area ID = X in the dangerous person density DB 223 with the calculated value. The update frequency shall be best effort. At this time, the dangerous person density calculation unit 212 also updates the value of the calculation time associated with the same area ID in the dangerous person density DB 223 with the value of the current time. Here, instead of the current time, for example, the median or average value of the time of the data stored in the dangerous person DB 222 used by the dangerous person density calculating unit 212 to calculate the dangerous degree density is used. Also good.

  When the countermeasure necessity determination unit 213 obtains the dangerous person density value and the area ID from the dangerous person density calculation unit 212, the dangerous person density value is compared with a predetermined threshold, and the dangerous person density value is determined. If it is equal to or greater than the threshold, it is determined that countermeasures are necessary. In the present embodiment, this measure is alerting the user of the mobile terminal 1 belonging to the area identified by the acquired area ID. When it is determined that a countermeasure is necessary, the countermeasure necessity determination unit 213 passes the area ID of the area determined to require the countermeasure to the countermeasure unit 214. The countermeasure necessity determining unit 213 may acquire the value of the dangerous person density and the area ID from the dangerous person density DB 223.

  When the countermeasure unit 214 acquires the area ID from the countermeasure necessity determination unit 213, the countermeasure unit 214 issues a warning to the users belonging to the area identified by the area ID. Specifically, the countermeasure unit 214 first calculates a time that is a predetermined time (hereinafter referred to as “T2 seconds”) from the current time. Here, T2 seconds may be the same value as T1 seconds or different values. Then, all identification IDs that are associated with the acquired area ID that are after the calculated time and associated with the time less than the current time in the dangerous person DB 222 are extracted. Then, for each extracted identification ID, corresponding notification destination information and notification destination attribute information are acquired in the notification destination DB 224. On the other hand, the countermeasure unit 214 passes the acquired area ID to the heat map creation unit 215 and obtains heat map information corresponding to the area ID from the heat map creation unit 215.

  When the notification destination information and the heat map information are acquired, the countermeasure unit 214 sends warning information including a predetermined warning message and the acquired heat map information to the notification destination indicated by the acquired notification destination information. It transmits via the communication part 23 by the method according to a notification destination attribute. For example, when an e-mail address is acquired as notification destination information, the heat map information is attached to an e-mail including a warning message and transmitted. When an SNS (Social Networking Service) account is acquired as notification destination information, a warning message with heat map information attached is transmitted from the warning notification account to the acquired account. When the mobile number is acquired as the notification destination information, a warning message is transmitted as a short message. At this time, transmission of heat map information may be omitted.

  Note that the content of the warning message included in the warning information may be determined in accordance with the area ID acquired by the countermeasure unit 214 and the value of the dangerous person density associated with the dangerous person density DB 223. For example, according to the value of the dangerous person density, one of a plurality of predetermined warning messages may be selected, or parameters and expressions included in the message may be dynamically determined.

  The heat map creation unit 215 creates a heat map with reference to the dangerous person density DB 223. Specifically, map data is generated in which areas are color-coded according to the risk density value stored in the dangerous person density DB 223. According to this heat map, the distribution of dangerous persons can be known at a glance. When the heat map creation unit 215 creates this heat map in advance and acquires the area ID from the countermeasure unit 214, the heat map creation unit 215 heats a rectangular area having a predetermined size centered on a certain point in the area identified by the area ID. Image data indicating the map is returned as heat map information. For example, when the area identified by the acquired area ID is a square, image data indicating a heat map of a rectangular area of a predetermined size centered on a point corresponding to the center of gravity of the square is returned as heat map information. At this time, the thumbnail of the image may be returned as heat map information. When creating the heat map, the heat map creating unit 215 selects risk density information associated with a time before a predetermined time from the risk density information stored in the dangerous person density DB 223. It may not be used.

1-4. Operation of Communication System The operation of the communication system 100 will be described. Specifically, an operation for registering dangerous person information in the dangerous person DB 222 and an operation for warning the dangerous person will be described.

1-4-1. Operation for Registering Risky Person Information in Risky Person DB FIG. 8 is a sequence diagram showing an example of an operation for registering dangerous person information in the dangerous person DB 222. In the operation shown in the figure, the walking detector 111 repeatedly determines whether or not the mobile terminal 1 is moving based on sensor data output from the acceleration sensor 16 (step Sa1). If the result of this determination is that the mobile terminal 1 is not moving (step Sa1: NO), the same step is repeated, and if the result of this determination is that the mobile terminal 1 is moving (step Sa1: YES) ), A determination result indicating that the vehicle is moving is output to the single danger situation determination unit 113.

  The face detection unit 112 performs face recognition on the image data output from the camera 17, and repeatedly determines whether or not the user's face is included in the image (step Sa2). As a result of this determination, if the user's face is not included (step Sa2: NO), the same step is repeated, and if the result of this determination is that the user's face is included (step Sa2: YES), a determination result indicating that the device is in use is output to the single danger situation determination unit 113.

  When the single danger situation determination unit 113 acquires the determination result indicating that the user is moving from the walking detection unit 111 and the determination result that the user is using the face detection unit 112, the single danger situation determination unit 113 determines that the user is walking on the smartphone. It determines with it being in a state, and the determination result to that effect is output to the notification information generation part 114 (step Sa3).

  When the notification information generation unit 114 acquires the determination result that the user is walking and is in the smartphone state from the single danger situation determination unit 113, the notification information generation unit 114 acquires the identification ID from the storage unit 12 and the position information and time information from the positioning unit 15. And generating notification information including the acquired information (step Sa4). And the produced | generated notification information is transmitted to the determination apparatus 2 via the communication part 13 (step Sa5).

When the notification information is received from the mobile terminal 1, the area determination unit 211 of the determination device 2 acquires the area ID corresponding to the position information included in the notification information from the area DB 221 (Step Sa6). Then, the acquired area ID and notification information (specifically, identification ID, position information, and time information) are associated with each other and stored in the dangerous person DB 222 (step Sa7).
The above is the description of the operation for registering the information of the dangerous person in the dangerous person DB.

  In the above operation, the process of step Sa1 and the process of step Sa2 may be executed in parallel, or the order may be reversed.

1-4-2. FIG. 9 is a sequence diagram showing an example of an operation for giving a warning to a dangerous person. In the operation shown in the figure, the dangerous person density calculation unit 212 calculates, for each area identified by each area ID stored in the area DB 221, a dangerous person density that is the density of the dangerous person in the area at a constant cycle. (Step Sb1). When the dangerous person density is calculated, the dangerous person density calculation unit 212 passes the value of the dangerous person density to the countermeasure necessity determination unit 213 in association with each area ID.
Further, the dangerous person density calculation unit 212 updates the value of the dangerous person density associated with the area ID for which the density is calculated and the dangerous person density DB 223 with the calculated value (step Sb2).

  When the countermeasure necessity determination unit 213 obtains the dangerous person density value and the area ID from the dangerous person density calculation unit 212, the dangerous person density value is compared with a predetermined threshold, and the dangerous person density value is determined. If it is equal to or greater than the threshold, it is determined that countermeasures are necessary (step Sb3). When it is determined that a countermeasure is necessary, the area ID of the area determined to require the countermeasure is transferred to the countermeasure unit 214.

  When the countermeasure unit 214 acquires the area ID from the countermeasure necessity determination unit 213, the countermeasure unit 214 acquires the identification IDs of all the mobile terminals 1 belonging to the area identified by the area ID from the dangerous person DB 222 (step Sb4). Then, for each of the acquired identification IDs, corresponding notification destination information and notification destination attribute information are acquired in the notification destination DB 224 (step Sb5). In addition, the countermeasure unit 214 passes the acquired area ID to the heat map creation unit 215, and obtains heat map information corresponding to the area ID from the heat map creation unit 215 (step Sb6).

  When the notification destination information and the heat map information are acquired, the countermeasure unit 214 generates warning information including a predetermined warning message and the acquired heat map information (step Sb7). And the said warning information is transmitted via the communication part 23 with the method according to a notification destination attribute with respect to the notification destination shown with the acquired notification destination information (step Sb8).

When the warning information is received from the determination device 2, the touch screen unit 14 of the mobile terminal 1 displays a warning message and a heat map for the user based on the warning information under the control of the control unit 11 (step). Sb9). At this time, the warning message may be an image or a video, the warning message may be emitted by a speaker (not shown), or the mobile terminal 1 may be vibrated.
This completes the description of the operation for giving a warning to a dangerous person.

  According to the communication system 100 according to the present embodiment described above, whether or not a warning is necessary is determined according to the density of dangerous persons in the area where the user of the mobile terminal 1 is located. Therefore, it is possible to give a warning only when there is a high risk that people in walking smartphones contact each other.

2. Modifications The above embodiment may be modified as follows. Further, the following modifications may be combined with each other.

2-1. Modification 1
In the above embodiment, the predetermined timing at which the dangerous person density calculation unit 212 calculates the dangerous person density may be changed according to a predetermined table, function, or the like so that the length of the interval is variable for each time zone. Good. Alternatively, the notification information may be received each time, or may be a timing at which the number of notification information received after the previous dangerous person density is calculated exceeds a predetermined threshold.

2-2. Modification 2
In the above embodiment, the threshold value compared with the value of the dangerous person density by the countermeasure necessity determination unit 213 may be determined according to the current time according to a table or function that defines the relationship between the time zone and the threshold value. Good.

2-3. Modification 3
In the above embodiment, only the information of the user of the mobile terminal 1 in the walking smartphone state is stored in the dangerous person DB 222, but the information of not only the dangerous person but also the user who is not a dangerous person is also stored in the dangerous person DB 222. You may do it. Specifically, in the mobile terminal 1, the detection result of the walking detection unit 111 is negative (that is, not in a moving state), or the detection result of the face detection unit 112 is negative (that is, use) (Not in the state), the notification information may be periodically transmitted to the determination device 2, and the notification information may be accumulated in the dangerous person DB 222 by the determination device 2. Then, the dangerous person density calculation unit 212 may calculate the dangerous person density with reference to the dangerous person DB 222 in which the information of the users who are not dangerous persons is also stored. When this modification is adopted, information indicating that the mobile terminal 1 of the dangerous person is in a walking smartphone state is transmitted, and an identification ID is recorded in the dangerous person DB 222 so that the dangerous person can be distinguished from the unsafe person. The warning may be issued only for the dangerous person. When this modification is adopted, it is possible to give a warning even when there is a high risk of contact with not only a dangerous person but also a person who is not a dangerous person.

  Moreover, it is not restricted to the user of the portable terminal 1 which concerns on said embodiment, The user of 1 A of other portable terminals (specifically portable terminal 1 which does not have the walk detection part 111 and the face detection part 112) This information may also be stored in the dangerous person DB 222. Specifically, the notification information may be periodically transmitted to the determination device 2 by the mobile terminal 1 </ b> A, and the notification information may be accumulated in the dangerous person DB 222 by the determination device 2. Then, the dangerous person density calculation unit 212 may calculate the dangerous person density with reference to the dangerous person DB 222 in which the information of the user of the portable terminal 1A is also stored. Even when this modification is adopted, information indicating that the mobile terminal 1 is in a walking smartphone state is transmitted to the dangerous person's mobile terminal 1, and an identification ID is assigned to the dangerous person DB 222 so that the dangerous person can be distinguished from the unsafe person. It is possible to record and warn only about dangerous persons.

2-4. Modification 4
In the above embodiment, in addition to or instead of displaying a warning message on the mobile terminal 1 in the area where it is determined that countermeasures are required, digital signage (in other words, an electronic signboard) installed in the area is displayed. A warning message may be displayed. Here, the digital signage is an example of an output device for outputting output information that alerts the user of the mobile terminal 1. The output information includes, for example, sound, image, video, vibration, or a combination thereof. When adopting this modification, for example, the determination apparatus 2 stores in advance a database that stores the area ID and the digital signage notification destination information in association with each other, and the countermeasure unit 214 determines that a countermeasure is necessary. The notification destination corresponding to the area ID of the selected area is identified with reference to the database, and the control information for instructing the notification destination to display the content effective in avoiding the danger caused by the walking smartphone is transmitted. It may be.

  The content displayed on the digital signage may be predetermined content such as content explaining the danger of walking smartphones, or may be content that is likely to be of interest to the user targeted for warning. . In the latter case, the determination device 2 acquires, for example, the attribute of the user of the mobile terminal 1 and the information of the application being used together with the notification information, and transmits the control information to the digital signage. The content to be displayed on the digital signage may be selected based on the above information of the users belonging to the area where is located. That is, the control unit 21 of the determination device 2 includes an attribute determination unit that determines an attribute of the user of the mobile terminal and an application used, and a content determination that determines content based on the attribute and the application used determined by the determination unit. May be further included. The digital signage may not only display a warning message but also output content composed of sound, image, video, vibration, or a combination thereof.

2-5. Modification 5
In the above embodiment, the dangerous person density calculation unit 212 passes only the dangerous person density value and the area ID corresponding thereto to the countermeasure necessity determination unit 213, but in addition to these, calculates the dangerous person density. Therefore, the identification ID group counted for this purpose may be transferred to the countermeasure necessity determination unit 213. When the countermeasure necessity determination unit 213 delivers the area ID to the countermeasure unit 214, in addition to this, the identification ID group corresponding to the area ID is also delivered to the countermeasure unit 214. Also good. In this way, when the countermeasure unit 214 obtains the area ID from the countermeasure necessity determination unit 213, it is not necessary to bother to extract the identification ID group corresponding to the area ID from the dangerous person DB 222.

2-6. Modification 6
In the above-described embodiment, the countermeasure necessity determination unit 213 compares the value of the dangerous person density with a threshold value to determine the necessity of the countermeasure, but instead of the dangerous person density, the absolute number of dangerous persons and the threshold value are determined. The necessity of countermeasures may be determined by comparing. In this case, the dangerous person density calculation unit 212 does not divide the number of identification IDs extracted and counted from the dangerous person DB 222 by the area of the area, but uses information indicating the counted number of identification IDs as a countermeasure necessity determination unit. You may hand it over to 213.

2-7. Modification 7
In the above embodiment, the countermeasure unit 214 transmits the warning information only to the mobile terminal 1 located in the area where the countermeasure is determined to be necessary, but in addition to or instead of this, the area adjacent to the area You may make it transmit warning information to the portable terminal 1 located in. In this case, the adjacent area is specified with reference to the area DB 221, and the mobile terminal 1 located in the adjacent area is specified by identifying the area ID of the specified area and the identification ID associated with the dangerous person DB 222. This may be done by extracting.

  When transmitting warning information to the mobile terminal 1 located in the adjacent area, the countermeasure unit 214 applies the transmission target only to the mobile terminal 1 that is moving toward the area where the countermeasure is determined to be necessary. It may be limited. In this case, the determination device 2 acquires the movement direction information indicating the movement direction of the mobile terminal 1 together with the notification information, and when transmitting the warning information, the movement direction of the mobile terminal 1 that is the transmission target of the warning information. With reference to the information, the warning information may be transmitted only when the mobile terminal 1 is moving toward the area where the countermeasure is determined to be necessary. That is, the control unit 21 of the determination device 2 includes a movement direction determination unit that determines the movement direction of the mobile terminal 1 located in the adjacent area, and the movement direction determined by the movement direction determination unit is the adjacent area. And a moving direction determination unit that determines whether or not the direction is toward an area determined to require countermeasures. The moving direction information may be detected by an orientation sensor such as a gyro sensor or a geomagnetic sensor provided in the mobile terminal 1.

2-8. Modification 8
In the embodiment described above, when the countermeasure unit 214 transmits the warning information, the relationship between the moving direction of the mobile terminal 1 that is the transmission destination and the moving direction of the mobile terminal 1 in the entire area where the mobile terminal 1 is located. The warning information may be transmitted in consideration. This is because when the mobile terminal 1 to be transmitted is moving in the reverse direction instead of the forward direction with respect to the movement direction of the mobile terminal 1 in the entire area, the risk that the user will come into contact with other passers-by Because it becomes higher.

  When this modified example is adopted, the determination device 2 acquires movement direction information indicating the movement direction of the mobile terminal 1 together with the notification information, and determines that countermeasures are necessary when transmitting warning information. While calculating the average value of the movement directions of a plurality of portable terminals 1 located in the area, the movement direction of the portable terminal 1 to be transmitted is specified, and the difference between the calculated average value and the specified movement direction For example, the degree of risk added to the warning message may be changed. That is, the control unit 21 of the determination device 2 determines the movement direction average calculation unit that calculates the average value of the movement directions of the plurality of mobile terminals 1 located in the area, and the movement direction of the mobile terminal 1 that is the transmission target of the warning information. A moving direction specifying unit to be specified may further include a direction difference calculating unit that calculates a difference between an average value of moving directions calculated by the moving direction average calculating unit and a moving direction specified by the moving direction specifying unit. . If the difference in the moving direction is expressed in the range of 0 degrees to 180 degrees, the degree of risk is set to increase in proportion to the difference value.

2-9. Modification 9
In the above embodiment, it is determined whether or not the mobile terminal 1 is in use based on the determination result by the face detection unit 112, but the method for determining whether or not the mobile terminal 1 is in use is limited to this. No (see, for example, Japanese Patent Application Laid-Open No. 2014-154901). For example, when it is determined that the mobile terminal 1 is in a specific movement state (a state in which walking is slow and the body is not moving up and down), it may be determined that the mobile terminal 1 is in use. Or when it determines with the portable terminal 1 being operated by the user, you may make it determine with the portable terminal 1 being in use. Here, the state in which the mobile terminal 1 is operated by the user is, for example, a case where there is an input to an input device such as an input key or the touch screen unit 14. Alternatively, when it is determined that a predetermined application is being executed, it may be determined that the mobile terminal 1 is in use. Here, the state in which the predetermined application is being executed is, for example, a case where the predetermined application is being activated or a case where the predetermined application has a predetermined status. More specifically, when the game is running, when the game is running, when the browser is running, when there is a communication history within a predetermined time, when an SNS application is running, or when a message is transmitted within a predetermined time, etc. It is. Alternatively, when it is determined that a predetermined application is being activated and there is an input to the input device, it may be determined that the mobile terminal 1 is in use.

2-10. Modification 10
In the above embodiment, the program executed in the mobile terminal 1 or the determination device 2 may be provided via a recording medium readable by the computer device. Here, the recording medium is, for example, a magnetic recording medium such as a magnetic tape or a magnetic disk, an optical recording medium such as an optical disk, a magneto-optical recording medium, or a semiconductor memory. The program may be distributed via a network such as the Internet.

2-11. Modification 11
In the above embodiment, the walking detection unit 111 determines whether or not the mobile terminal 1 is moving based on the sensor data output from the acceleration sensor 16, but in the above embodiment, for example, an intersection If it is desired to include the state of waiting for a signal during the movement, it may be determined that the movement is continued from the time when the movement is once determined until the predetermined time has elapsed. Similarly, the face detection unit 112 may be determined to be continuously used from the time when it is determined to be used once until a predetermined time has elapsed.

2-12. Modification 12
In the above embodiment, the determination device 2 receives the position information, the time information, and the identification ID from the mobile terminal 1 (see step Sa5 in FIG. 8), but acquires these information from other systems and devices. May be. For example, you may make it acquire by accessing the database which memorize | stores such information. Alternatively, the identification ID is received as notification information from the mobile terminal 1 in the walking smartphone state, and the position information and time information are keyed from other systems or devices that store these and the identification ID in association with each other. You may make it acquire.

2-13. Modification 13
In the above embodiment, the countermeasure unit 214 transmits warning information including a predetermined warning message and heat map information to the mobile terminal 1 (see steps Sb7 and Sb8 in FIG. 9). May be transmitted to the portable terminal 1. In this case, the heat map creation unit 215 may be omitted in the above embodiment.

2-14. Modification 14
In the above-described embodiment, the mobile terminal 1 determines that the single danger situation determination unit 113 is walking and is in a smartphone state, and acquires information indicating that the surrounding area is congested. You may make it output the information to call out. Here, when the information indicating that the surroundings are congested is acquired, specifically, for example, when the warning information is received from the determination device 2 as in the above embodiment. Or it is a case where a predetermined | prescribed communication packet is received from the system installed in the area where the portable terminal 1 exists. The system includes, for example, a fixed point camera that captures a predetermined area, an image processing device that processes a camera image captured by the fixed point camera, and a radio base station. The image processing apparatus stores in advance a function or a table in which the area of the difference between the image in which no person is present in the area and the image in which a person is reflected is associated with the degree of congestion of the area. A packet indicating that the surrounding area is congested by broadcasting from a wireless base station when the congestion degree of the area is obtained based on images periodically taken by a fixed point camera and the congestion degree is equal to or greater than a predetermined threshold. Send.

  In addition, when information indicating that the surroundings are congested is acquired, for example, the number of mobile terminals 1 that have passed each other within a predetermined time after passing communication between the mobile terminals 1 is predetermined. This is a case where a signal output when the value is equal to or greater than the threshold is acquired.

2-15. Modification 15
In the above embodiment, the notification information is received from the mobile terminal 1 existing in various areas, the notification information is stored in the dangerous person DB 222, and the dangerous person density is calculated for each of the plurality of areas to take countermeasures. Judgment is made. However, the number of areas for which notification information is to be collected and for which the necessity of countermeasures is to be determined may be one.

DESCRIPTION OF SYMBOLS 1 ... Portable terminal, 2 ... Determination apparatus, 3 ... Network, 11 ... Control part, 12 ... Memory | storage part, 13 ... Communication part, 14 ... Touch screen part, 15 ... Positioning part, 16 ... Acceleration sensor, 17 ... Camera, 21 DESCRIPTION OF SYMBOLS ... Control part, 22 ... Memory | storage part, 23 ... Communication part, 100 ... Communication system, 111 ... Walking detection part, 112 ... Face detection part, 113 ... Single danger situation determination part, 114 ... Notification information generation part, 211 ... Area determination 212, dangerous person density calculation part, 213 ... countermeasure necessity determination part, 214 ... countermeasure part, 215 ... heat map creation part, 221 ... area DB, 222 ... dangerous person DB, 223 ... dangerous person density DB, 224 ... Notification destination DB

Claims (10)

An area determination unit that determines an area where each mobile terminal is present among one or more areas based on position information of each of the plurality of mobile terminals;
For each of the one or more areas, a countermeasure necessity determination unit that determines an area for alerting based on the number of mobile terminals present in the area;
A countermeasure unit that transmits control information for instructing a user of a mobile terminal that is in a moving state and is in use in a single area that is determined to be alerted by the countermeasure necessity determining unit; A determination device provided.   The countermeasure necessity determination unit alerts each of the one or more areas based on the number of mobile terminals that are present in the area and are in a moving state and in use. The determination apparatus according to claim 1, wherein an area for performing the determination is determined.   The countermeasure unit outputs output information for alerting the user of the mobile terminal that is in a moving state and is in use in the one area to the output device in the one area. The determination apparatus according to claim 1, wherein control information instructing is transmitted. An attribute determination unit that determines an attribute of the user of the mobile terminal existing in the one area;
An output information determination unit that determines output information based on the attribute determined by the attribute determination unit;
The said countermeasure part transmits the control information which instruct | indicates the output of the output information determined by the said output information determination part with respect to the said output device. The Claim 1 thru | or 3 characterized by the above-mentioned. Judgment device.   The countermeasure unit alerts a user of the mobile terminal to one mobile terminal that has acquired information that the mobile terminal is in a moving state and in a using state among the mobile terminals existing in the one area. 5. The determination apparatus according to claim 1, wherein control information for instructing is transmitted. A moving direction average calculating unit for calculating an average of moving directions of a plurality of mobile terminals existing in the one area;
A moving direction specifying unit that specifies the moving direction of the one mobile terminal;
The countermeasure unit uses the one mobile terminal with respect to the one mobile terminal according to a difference between the average calculated by the moving direction average calculating unit and the moving direction specified by the moving direction specifying unit. The determination apparatus according to claim 5, wherein control information for instructing a person to be alerted is transmitted. A moving direction specifying unit that determines a moving direction of one mobile terminal existing in an area adjacent to the one area;
A moving direction determining unit that determines whether the moving direction determined by the moving direction specifying unit is a direction from the adjacent area toward the one area;
As a result of the determination by the movement direction determination unit, when the movement direction determined by the movement direction specifying unit is a direction from the adjacent area to the one area, the countermeasure unit is configured to use the one portable terminal. The determination apparatus according to claim 5, further comprising: transmitting control information for instructing an alert to a user of the one mobile terminal. A location information acquisition unit that acquires location information of the terminal;
A moving state determining unit that determines whether or not the moving state is present;
A use state determination unit that determines whether or not the device is in a use state; and
When both the determination by the movement state determination unit and the determination by the use state determination unit are affirmative, the position information acquired by the position information acquisition unit and the identification information of the own terminal are obtained. A transmitter that transmits to the determination device according to any one of 7;
From the determination device, a receiving unit that receives control information for instructing attention to the user of the terminal,
A portable terminal comprising: an output unit that outputs output information that alerts the user of the terminal based on the control information received by the receiving unit. A moving state determining unit that determines whether or not the moving state is present;
A use state determination unit that determines whether or not the device is in a use state; and
When both the determination by the movement state determination unit and the determination by the use state determination unit are affirmative and information indicating that the surroundings are congested is acquired, the user's attention of the own terminal is A portable terminal comprising: an output unit that outputs output information to be invoked. A determination method executed by a determination device,
Determining an area where each mobile terminal is present among one or more areas based on position information of each of the plurality of mobile terminals;
For each of the one or more areas, determining an area for alerting based on the number of mobile terminals present in the area;
A determination method comprising: transmitting control information for instructing an attention to a user of a mobile terminal that is in a moving state and in a use state in an area determined to perform the alerting.

Images