JP6430313B2 - Terminal device, warning notification method, and program - Google Patents

Description

  The present invention relates to a terminal device, a warning notification method, and a program for notifying a user having a terminal device of a warning.

  2. Description of the Related Art Conventionally, a technique is known in which a virtual boundary called a geofence is provided around a fixed building or landmark, and a person intrusion into the boundary is detected. For example, a service has been developed in which a static geofence is set around a specific store and an electronic coupon ticket of the store is distributed to a terminal device possessed by a user who enters the geofence.

  A technique for setting a dynamic geofence for the user of the terminal device and detecting the entry / exit of another person to the geofence is also known. As an example, in Patent Document 1, when a dynamic geofence area is set around a protected person and a restricted person with a tracking device attached is detected to enter the area, A method for sending an alert message is disclosed.

Special table 2011-528489 (announced on November 17, 2011)

  In the technique of Patent Document 1, it is determined whether or not the restricted person has entered the dynamic geofence based on the relationship between the position information obtained from the tracking device and the dynamic geofence. Since this position information is one point of information that does not spread, a warning can be notified only when it is determined that the position information of the restricted person has entered the dynamic geofence area. As described above, the conventional technique has a problem that strictness is required for the relation determination for notifying the warning.

  The present invention has been made to solve the above-described problems of the present invention. And the objective is to provide the terminal device, the warning notification method, and program which determine more flexibly the relationship between the geofences for notifying a warning.

  In order to solve the above problems, a terminal device according to the present invention includes a first position information acquisition unit that acquires first position information that represents the position of a terminal device, and a second that represents the position of another terminal device. A second position information acquisition unit that acquires the position information of the first position, a first setting unit that sets the first geofence including the first position information, and a second position information that includes the second position information. A second setting unit that sets an offense; a determination unit that determines a relationship between the position of the first geofence and the position of the second geofence; and a warning based on the determined relationship. And a notification unit for notifying the user.

  According to one aspect of the present invention, it is possible to more flexibly determine the relationship between geofences for notifying a warning.

It is a block diagram which shows the principal part structure of the terminal device which concerns on Embodiment 1 of this invention. It is a block diagram which shows the principal part structure of the warning notification system which concerns on Embodiment 1 of this invention. It is a flowchart which shows the flow of the warning notification method which the terminal device which concerns on Embodiment 1 of this invention performs. It is a figure which shows an example of each geofence which the terminal device which concerns on Embodiment 1 of this invention sets. It is a flowchart which shows the flow of the encounter prediction process which the terminal device which concerns on Embodiment 1 of this invention performs. It is a figure which shows an example of each geofence which the terminal device which concerns on Embodiment 1 of this invention sets at the time of an encounter prediction process. It is a figure explaining an example of the method for the terminal device which concerns on Embodiment 1 of this invention to calculate a moving direction and moving speed of a person. It is a figure explaining an example of the other method for the terminal device which concerns on Embodiment 1 of this invention to calculate the moving direction and moving speed of a person. It is a figure which shows an example of the log | history table for preserve | saving the positional infomation formed in the log | history database in Embodiment 2 of this invention. It is a flowchart which shows the flow of the warning notification method which the terminal device which concerns on Embodiment 2 of this invention performs. It is a flowchart which shows the flow of the warning notification method which the terminal device which concerns on Embodiment 3 of this invention performs. It is a figure which shows an example of each geofence which the terminal device which concerns on Embodiment 3 of this invention sets.

Embodiment 1
Embodiment 1 which concerns on this invention is demonstrated below based on FIGS. FIG. 2 is a block diagram illustrating a main configuration of the warning notification system 100 according to the first embodiment of the present invention. As shown in FIG. 1, the warning notification system 100 includes a terminal device 1, a terminal device 2 (another terminal device), and a server 3. The terminal device 1 and the terminal device 2 can wirelessly communicate with the server 3. The terminal device 1 and the terminal device 2 are realized as various portable information communication terminals such as a mobile phone, a smartphone, a tablet terminal, or a wearable terminal. A person A possesses a terminal device 1 and a person B possesses a terminal device 2.

  FIG. 1 is a block diagram showing a main configuration of a terminal device 1 according to Embodiment 1 of the present invention. As shown in this figure, the terminal device 1 includes an information acquisition unit 11 (first position information acquisition unit, second position information acquisition unit, map information acquisition unit, storage unit), geofence setting unit 12 (first Geofence setting unit, second geofence setting unit), determination unit 13 (first calculation unit, second calculation unit, prediction unit, first traffic route information acquisition unit, second traffic route information acquisition) Unit, first route information acquisition unit, second route information acquisition unit), warning notification unit 14 (notification unit), display unit 15 (map information display unit), history database 16, and behavior pattern estimation unit 17 (estimation) Department, location information acquisition part).

  In the present embodiment, a case will be described in which it is assumed that the person B is not preferable for the person A (for example, a stalker). The person A uses the warning notification system 100 in order to avoid encounter with the person B.

  FIG. 3 is a flowchart showing the flow of the warning notification method executed by the terminal device 1 according to the first embodiment of the present invention. The person A inputs the telephone number of the person B to the terminal device 1 (S1). This telephone number is information used by the terminal device 1 to acquire the position information of the terminal device 2. As this type of information, in addition to the telephone number, the mail address of the person B, the identifier of the terminal device 2, the identifier of the base station registered by the terminal device 2, the Wi-Fi (registered trademark) used by the terminal device 2 ) For connecting to an access point, information for connecting to a Bluetooth (registered trademark) access point used by the terminal device 2, and the person A sends the person B (terminal device 2) to the terminal device. Any one of these may be input to the terminal device 1 as information for setting to 1.

  This embodiment is based on the premise that the person A can obtain these pieces of information for acquiring the position information of the terminal device 2 in advance by some means. For example, when the terminal device 1 and the terminal device 2 are registered in the same group in the message exchange service, the person A can exchange various information possessed by the terminal device 2 by mutual communication through this group. Get free through.

  The information acquisition unit 11 acquires position information of the terminal device 1 (S2). The terminal device 1 has a GPS (Global Positioning System) receiving unit (not shown), and the information acquisition unit 11 uses the various signals received from GPS satellites by the GPS receiving unit to calculate the position information of the terminal device 1. get.

  The terminal device 2 periodically calculates its own location information and provides it to the server 3. The terminal device 2 may calculate the position information of the terminal device 2 using various signals received from GPS satellites. Alternatively, location data indicating the location of the base station is acquired from a base station such as WCDMA (Wideband Code Division Multiple Access, registered trademark) registered by the terminal device 2, and the location of the terminal device 2 is obtained using this location data. Information may be generated. Usually, since the terminal device 2 is registered in a plurality of base stations, the terminal device 2 obtains the respective location data from the plurality of base stations, and obtains the position information of the terminal device 2 by triangulation using these. It may be calculated. In addition, the terminal device 2 acquires location data indicating the position of the access point from the Wi-Fi or Bluetooth access point that the terminal device 2 uses for wireless communication, and the terminal device 2 acquires the location data from the location data. The position information of 2 may be calculated.

  The terminal device 2 transmits the calculated position information of the terminal device 2 to the server 3 in association with information for acquiring the position information (such as a person B's telephone number and mail address). The server 3 stores the received location information of the terminal device 2 therein. When the server 3 receives information for acquiring the position information of the terminal device 2 such as the telephone number of the person B from the terminal device 1, the position information of the terminal device 2 stored in the server 3 in association with this information. Is transmitted to the terminal device 1. Therefore, the information acquisition unit 11 acquires the position information of the terminal device 2 using the input telephone number of the person B (S3).

  The geofence setting unit 12 sets the geofence of the person A including the position information of the terminal device 1 and the geofence of the terminal device 2 including the position information of the terminal device 2 (S4). The geofence of person A defines the action range of person A, while the geofence of person B defines the action range of person B. Since the positions of the terminal device 1 and the terminal device 2 move, dynamic geofences are set in the terminal device 1 and the terminal device 2, respectively.

  The geofence of the person A is two circular geofences 21 and 22 that include the position information of the terminal device 1 at the center and have different sizes. On the other hand, the geofence of the person B is one circular geofence 31 including the position information of the terminal device 2 as the center. The shape of each geofence is not limited to a circle but may be other shapes such as a square and a hexagon. For the person A, three or more geofences having different sizes may be set. The geofence 21 is larger than the geofence 22, and the geofence 22 and the geofence 31 are the same size. In this embodiment, the geofence 21 has a radius of 3 km, and the geofence 31 and the geofence 22 both have a radius of 100 m.

  The display unit 15 displays each set geofence 21, 22, and 31 on the screen of the terminal device 1 (S5). The person A visually grasps the current relative positional relationship between the person A and the person B through each geofence displayed on the screen. The determination unit 13 determines whether or not the large geofence 21 of the person A and the geofence 31 of the person B overlap each other (S6). If S6 is NO, the information acquisition unit 11 determines whether or not a certain time has elapsed after S6 (S9). If S9 is NO, the process of FIG. 3 repeats S9. On the other hand, if S9 is YES, the process of FIG. 9 returns to S2. Thereby, the information acquisition part 11 repeats acquisition of the positional information on the terminal device 1 and the positional information on the terminal device 2 for every fixed time.

  If S6 is YES, the warning notification unit 14 notifies the person A of a warning (S7). Examples of warnings include message display, light irradiation, voice (alarm, electronic sound, melody) output, and vibrator vibration. The person A can set in the terminal device 1 what type of warning is notified. Upon receiving a warning from the terminal device 1, the person A can recognize that the possibility of himself encountering the person B has increased and can take action to avoid the encounter. After the notification of the warning, the terminal device 1 executes encounter prediction processing (S8). Details of this processing will be described later. Thereafter, the information acquisition unit waits for a certain time (S9), and the process of FIG. 3 returns to S2.

  The warning notification unit 13 may determine the degree of overlap between the geofences 21 and 22 of the person A and the geofence 31 of the person B in S6, and the warning notification unit 13 may change the way of warning based on the determination result. . Specifically, as the person A and the person B are closer, the degree of warning is expressed more strongly. For example, the warning notification unit 13 gives a warning when it is determined that the geofence 22 and the geofence 31 contact or partially overlap, and a warning when it is determined that the geofence 21 and the geofence 31 overlap. Compared to the above, a warning with a higher degree (for example, a stronger alarm sound, a warning sound with a shorter ringing time, a stronger vibration of the vibrator) may be used. Thereby, it is possible to make the person B recognize that the urgency to take a measure for not encountering the person B has increased.

  FIG. 4 is a diagram illustrating an example of each geofence set by the terminal device 1 according to the first embodiment of the present invention. In FIG. 4A, the person B moves in the direction 41, but the geofence 21 and the geofence 31 do not overlap. Therefore, the warning notification unit 14 does not notify the person A of a warning. On the other hand, in FIG. 4B, the person B is closer to the person A, and the geofence 21 and the geofence 31 overlap. Therefore, the warning notification unit 14 notifies the person A of the warning. In this way, the warning notification unit 14 notifies the person A of a warning based on the determination result of the relationship between the geofence 21 and the geofence 31.

  FIG. 5 is a flowchart showing the flow of encounter prediction processing executed by the terminal device 1 according to Embodiment 1 of the present invention. The processes from S11 to S14 are the same as the processes from S2 to S5 in FIG. After S14, the information acquisition unit 11 stores the acquired location information of the terminal device 1 and location information of the terminal device 2 in the history database 16, respectively. Each piece of position information is stored in association with at least the current time. The information acquisition unit 11 determines whether or not the number of times position information has been stored exceeds a predetermined number (for example, 10 times) (S16). If S16 is NO, the information acquisition unit 11 determines whether or not a predetermined time has elapsed after S11 (S23). The fixed time in S23 is shorter than the fixed time in S9. If S23 is NO, the information acquisition unit 11 waits until S23 becomes YES. If S23 is YES, the process of FIG. 5 returns to S11. Thereby, the information acquisition part 11 repeats acquisition of the positional information on the terminal device 1 and the positional information on the terminal device 2, and preservation | save of each positional information for every fixed time.

  If S <b> 16 is YES, the determination unit 13 acquires from the history database 16 the history information of the terminal device 1 for the past predetermined number (for example, 10 times) from the history database 16. Then, by using the history of the past position information, the moving direction and moving speed of the terminal device 1 (that is, the person A) are calculated (S17).

  Next, the determination unit 13 acquires, from the history database 16, the past predetermined number (for example, 10 times) of position information histories of the terminal device 2 from the history database 16. Then, by using the history of the past position information, the moving direction and moving speed of the terminal device 2 (that is, the person B) are calculated (S18).

  The determination unit 13 determines whether or not the person A and the person B are predicted to meet in the future based on the movement direction and movement speed of the person A and the movement direction and movement speed of the person B (S19). If S19 is YES, the determination unit 13 calculates an encounter time and an encounter place where the person A and the person B will encounter in the future based on each person's moving direction and each moving speed, and outputs them to the warning notification unit 14. The warning notification unit 14 displays the input encounter time and encounter place on the screen of the terminal device 1 through the display unit 15 (S20). If S19 is NO, the display process of S20 is not performed.

  Next, the determination unit 13 determines whether or not the geofence 21 of the person A and the geofence 31 of the person B overlap each other (S21). If S21 is NO, the warning notification unit 14 stops warning notification (S24), and the encounter prediction process shown in FIG. 5 is completed. On the other hand, if S21 is YES, the warning notification unit 14 notifies the person A of a warning based on the moving direction and moving speed of the person A and the moving direction and moving speed of the person B (S22). In S22, the warning notification unit 13 may notify the person A of a warning based only on the fact that the geofence 21 and the geofence 31 overlap. After S22, the information acquisition unit 11 determines whether a certain time has elapsed (S23). If S23 is NO, the information acquisition unit 11 waits until S23 becomes YES. If S23 is YES, the process of FIG. 5 returns to S11. Thereby, as long as the geofence 21 and the geofence 31 have overlapped, the terminal device 1 continues the encounter prediction process shown in FIG.

  FIG. 6 is a diagram illustrating an example of each geofence set by the terminal device according to the first embodiment of the present invention during the encounter prediction process. The length of each arrow shown in this figure indicates the moving speed. Specifically, the longer the arrow, the faster the moving speed.

  In FIG. 6A, the person A has moved in the direction 42 and the person B has moved in the direction 43. If the movement speed of the person B is faster than the movement speed of the person A, the person A may catch up with the person B as it is. Therefore, the warning notification unit 14 notifies a warning corresponding to this situation. For example, the sounding interval of the warning sound is shortened, the tempo of the warning music is made faster, or special warning music different from the normal warning music is played. However, the content of the warning to be notified depends on the moving speeds, moving directions, and road conditions of the persons A and B.

  In FIG. 6B, the person A moves in the direction 44 and the person B moves in the direction 45. The determination unit 13 predicts that the person A and the person B will encounter at the encounter position 46 after a certain time. Therefore, the warning notification unit 14 displays the encounter time and the encounter position 46 on the screen, and further shortens the ringing interval of the warning sound as compared with the case of FIG.

  In FIG. 6C, the person A has moved in the direction 47 and the person B has moved in the direction 48. Since the person A and the person B move away from each other, the warning notification unit 14 widens the ringing interval of the warning sound, makes the tempo of the warning music slower, or what is normal warning music? Or playing different special warning music. Then, when the geofence 31 of the person B moves away from the geofence 21 with the large person A, the warning notification is canceled. As a result, the sounding of the warning sound stops and the warning message disappears from the screen.

  The determination unit 13 may predict whether or not the person A and the person B will be separated by a predetermined distance in the future based on the moving direction and moving speed of the person A and the moving direction and moving speed of the person B. In this case, the determination unit 13 predicts a separation position and a separation time at which the user of the terminal device 1 and the user of the terminal device 2 are separated by a predetermined distance, and the warning notification unit 14 notifies the person A of these.

  In consideration of the accuracy of realistic position information, by using a geofence 31 of a certain range (for example, a circle with a radius of 100 m) including the position information of the terminal device 2 instead of the position information of one point of the terminal device 2, An unintended encounter between the person A and the person B due to the information detection error can be avoided. However, since the large geofence 21 is used to determine whether or not the person B has entered the alert range of the person A, if the large geofence 21 does not have a certain size, the person A is the person. In order to avoid encountering B, it is difficult to take measures such as changing the traveling direction of the player. Therefore, it is desirable that the terminal device 1 acquires the position information of the terminal device 2 registered in a base station such as WCDMA or the position information generated by the terminal device 2 using the GPS function as the position information of the terminal device 2. On the other hand, when the distance between the person A and the person B approaches, the terminal device 1 calculates the terminal calculated based on the location data of the Wi-Fi or Bluetooth access point used by the terminal device 2 for wireless communication. It is desirable to acquire the position information of the device 2 and use it together with the position information of the base station or the position information by GPS positioning.

  FIG. 7 is a diagram illustrating an example of a method for the terminal device 1 according to the first embodiment of the present invention to calculate the movement direction and movement speed of the person B. The information acquisition unit 11 acquires map information from the server 3 and displays it on the screen of the terminal device 1 through the display unit 15. Furthermore, the information acquisition unit 11 acquires the history of the position information of the terminal device 2 acquired at different times from the history database 16, and transmits the geofences 31 a to 31 c including the position information of the terminal device 1 through the display unit 15. Display on the screen.

  The determination unit 13 acquires road information (traffic road information) 51a to 51c overlapping the geofences 31a to 31c in the displayed map information. As shown in FIG. 7, the display unit 15 displays these road information 51a to 51c as distinctive road information that does not overlap with the geofences 31a to 31c in the map information. The determination unit 13 acquires route information 52 indicating a route taken by the user by using a predetermined route search algorithm based on the plurality of pieces of road information 51a to 51c acquired at different times. Even if each of the road information 51a to 51c is branched, the route information 52 can be correctly calculated by using the route search algorithm. The display unit 15 displays the route information 52 on the map information on the screen. When a plurality of different pieces of route information are calculated, the display unit 15 may display them in different colors. Although not particularly illustrated, route information representing a route taken by the person A can also be acquired and displayed by the same method.

  The determination unit 13 calculates the moving speed and moving direction of the person B based on the acquired road information 51a to 51c. In that case, the determination part 13 uses the reference point (for example, the center of a road, a right end, or a left end) in each road information 51a-51c for the distance measurement between road information.

  The information acquisition unit 11 acquires the position information of the person B for setting the geofence 31a at a certain time t1, and the position information of the person B for setting the geofence 31b at a time t2 after a certain time. Is obtained. In this case, the determination unit 13 calculates the distance between the reference point in the road information 51a in the geofence 31a and the reference point in the road information 51b in the geofence 31b. Then, the moving speed of the person B from time t1 to t2 is calculated by dividing this distance by the difference between time t2 and time t1. Similarly, the moving speed of the person B from time t2 to t3 is calculated using the road information 51b and the road information 51c. Then, the average moving speed of the person B is calculated by averaging the calculated moving speeds. Although not particularly illustrated, the moving speed and moving direction of the person A can be calculated by the same method.

  As described above, the determination unit 13 calculates the moving speed and moving direction of the person B based on the temporal change of the geofence 31.

  The acquisition interval of the position information of the terminal device 2 after the geo fence 31 of the person B overlaps with the large geo fence 21 of the person A can be manually set by the person A in the terminal device 1. Or the terminal device 1 can also set automatically. For example, it is assumed that the information acquisition unit 11 acquires each piece of position information at 10-minute intervals before the geofence 31 of the person B overlaps the geofence 21 with the large person A. In this case, after the geofence 31 of the person B overlaps with the large geofence 21 of the person A, the terminal device 1 changes the acquisition interval of the position information of the person B to an interval of 1 minute, and further the movement of the person B Calculate the speed. The information acquisition unit 11 reduces the detection interval of the position information of the person B to 30 seconds if the calculated moving speed is the same as that of a bicycle. Increase to 5 minutes.

  When the person B continues to stay in the same building (convenience store or the like) without moving, even if the position information of the terminal device 2 is repeatedly acquired after a certain period of time, the same position information is acquired. If the terminal device 2 is equipped with a barometric sensor or a barometer, the information acquisition unit 11 acquires barometric pressure information measured by the terminal device 2 as altitude data included in the position information. Therefore, when the person B is in a large building, the information acquisition unit 11 can calculate the floor number of the person B based on the altitude data included in the acquired position information. Further, the information acquisition unit 11 calculates the height of the person B from the ground surface based on the acquired altitude data (atmospheric pressure information), and further stores the height in the history database 16 in association with the position information of the terminal device 2. When the person B is climbing a mountain, the information acquisition unit 11 can calculate what number of the mountain the person B is in by using the altitude data.

  If each geofence 31a-31c has overlapped with the track | line in map information, the warning notification part 14 will determine with the moving means of the terminal device 2 being a train. However, when the person B is on a fast train such as the Shinkansen, the position information of the terminal device 2 at a certain time can be acquired, but the position information of the terminal device 2 at another time cannot be acquired. There is a possibility. However, in this case, since there is no possibility that the person A encounters the person B, this is not a problem.

  When the movement means of the person B is a train, the person B cannot get off the train if there is no nearest station in the predicted traveling direction of the person B. In this case as well, there is no possibility that the person A encounters the person B, so this is not a problem. The distance from a point with road information in the map information to another point can be acquired from the map information. Therefore, the moving speed of the person B can be calculated from the acquisition interval of the position information of the person B. If it can be determined based on this moving speed that the person B is moving on the road, it can be distinguished whether the moving means of the person B is walking, a bicycle, or a car.

  FIG. 8 is a diagram for explaining an example of another method for the terminal device 1 according to the first embodiment of the present invention to calculate the movement direction and movement speed of the person B. In the example of this figure, the geofence setting unit 12 sets a geofence 23 having a large square. As the person A moves, the large geofence 23 sequentially moves to the positions of the geofences 23a, 23b, and 23c.

  The geofence setting unit 12 divides each geofence 23a to 23c into a plurality of grids having a certain size. The warning notification unit 14 detects each grid that overlaps the geofences 31a to 31c of the person B set at different times from among the plurality of grids constituting the geofences 23a to 23c, and The overlapping portions 61a to 61c that overlap with any of the offenses 31a to 31c are acquired. The warning notification unit 14 calculates the moving direction and moving speed of the terminal device 2 (that is, the person B) based on these overlapping portions 61a to 61c. Similarly, the warning notification unit 14 detects each grid that overlaps each geofence 22a to 22c of the person A set at a different time from among the plurality of grids that constitute the geofences 23a to 23c, and each of these grids. Each of the geofences 22a to 22c in FIG. 11 obtains overlapping portions 71a to 71c that overlap with the geofences 23a to 23c, respectively. The warning notification unit 14 calculates the moving direction and moving speed of the terminal device 1 (that is, the person A) based on these overlapping portions 71a to 71c.

  When the person A moves while the person B moves, there is a possibility that the geofence 31 of the person B is located outside the large geofence 23 of the person A on the map displayed on the screen of the terminal device 1. There is also. In this case, the determination unit 13 approximates the locus of the small geofence 22 of the person A and the locus of the geofence 31 of the person B with straight lines, and calculates the intersection of the obtained straight lines, thereby An encounter position that B encounters in the future can be predicted.

  In the example of FIG. 8, the geofence setting unit 12 may change the size of the geofence 23 of the person A based on the movement speed and movement direction of the person A and the movement speed and movement direction of the person B. For example, if the person A and the person B are in the positional relationship shown in FIG. 8 and the movement speed of the person A and the movement speed of the person B are the same, the geofence 23 of the person A is changed to the geofence of the person B. It changes so that 31 may be detected easily. For example, the left half on the drawing is deleted from the center of the geofence 23 and only the right half is left. Alternatively, the range of the geofence 23 is changed to a range of a predetermined distance (for example, 6 km) on the left side of the drawing with the position information of the terminal device 2 as a starting point.

[Embodiment 2]
Embodiment 2 according to the present invention will be described below with reference to FIGS. 9 and 10. Each member common to Embodiment 1 described above is denoted by the same reference numeral, and detailed description thereof is omitted. In the present embodiment, an example in which the past location of the person B stored in the history database 16 is displayed on the screen of the terminal device 1 will be described.

  FIG. 9 is a diagram showing an example of a history table for storing position information, which is formed in the history database 16 in the second embodiment of the present invention. This history table includes at least the date, day of the week (weekday, Sunday or public holiday), time, location, stay time, location (building, station, convenience store, public toilet, road, etc.), means of transportation, count, and Totals are stored in association with each other.

  When the position information is stored in the history table, the information acquisition unit 11 first acquires the date, day of the week, and time when the position information is acquired. Next, location information corresponding to each position information in the map information is acquired from the map information. Further, based on the location information, a person moving means is calculated. Further, the count number and the total number corresponding to the position information are respectively calculated. The count number is the number of times the location information corresponding to the location information is saved in the history table on the same date, and the total number is the total number saved in the history table across the dates where the location information corresponding to the location information is different. Is the number of saves.

  When the person B lives in the geofence 21 where the person A is large, there is a possibility that the commuting route of the person A, the convenience store and the store where the person A often stops, and the home of the person A may be known to the person B. On the other hand, the terminal device 1 can estimate the behavior pattern and life rhythm of the person B by using the history of the past position information of the person B stored in the history table. Accordingly, since the person A can obtain information from the terminal device 1 that the person B is in this area at this time on this day of the week, the person A avoids encountering the person B (reducing the encounter probability). be able to.

  If a large amount of person B information such as place information is stored in the history table and it takes a considerable amount of time to display, person A can only have place information with the top 20 counts in the history table. Can be set in the terminal device 1 to display on the screen. Or you may set to the terminal device 1 to display only the location information for the last 10 days, or only the location information of a specific day of the week. Thereby, the time for acquiring the location information from the history table is shortened, and more accurate location information is provided to the person A. Therefore, the person A can take measures to avoid encounter with the person B. , Can stand up with more margin.

  FIG. 10 is a flowchart illustrating a flow of a warning notification method executed by the terminal device 1 according to the second embodiment of the present invention. The processes from S31 to S34 are the same as the processes from S1 to S4 in FIG. After S34, it is determined whether or not the past location of the person B located in the large geofence 21 of the person A is stored in the history database 16. If S35 is NO, the terminal device 1 executes encounter prediction processing (S36). This process is the same as the process shown in FIG.

  If S35 is YES, the display unit 15 displays the geofences 21 and 22 of the person A and the geofence 31 of the person B, respectively (S37). Next, the behavior pattern estimation unit 17 acquires the past location information of the person B located in the geofence 21 where the person A is large from the history table, and estimates this as the behavior pattern of the person B. The location information acquired at this time is the location information included in the geofence 21 in which the location information of the terminal device 2 corresponding to the location information in the history table among the plurality of location information stored in the history table is set. It is. The display unit 15 displays the acquired geofence 21 (S39). S39 to S41 are the same as S6, S7, and S9 in FIG.

[Embodiment 3]
Embodiment 3 according to the present invention will be described below with reference to FIGS. 11 and 12. Each member common to the above-described embodiment is denoted by the same reference numeral, and detailed description thereof is omitted.

  In the present embodiment, it is assumed that the person B is a child or an elderly person of the person A, or the person B is a family member, friend, or acquaintance of the person A who is in a crowded crowd. . In these cases, the determination condition for notifying the warning is reversed from that in the first embodiment. That is, a warning is notified when the geofence 31 of the person B moves away from the small geofence 22 or the large geofence 21 of the person A.

  FIG. 11 is a flowchart showing a flow of a warning notification method executed by the terminal device 1 according to the second embodiment of the present invention. S51 to S53 are the same as S1 to S3 in FIG. After S53, the information acquisition unit 11 stores the acquired position information in the history database 16 (S54). The information acquisition unit 11 determines whether or not the number of times position information has been stored exceeds a predetermined number (for example, 10 times) (S55). If S55 is NO, the information acquisition unit 11 determines whether or not a predetermined time has elapsed after S52 (S62). If S62 is NO, the information acquisition unit 11 waits until S62 becomes YES. If S62 is YES, the process of FIG. 11 returns to S52. Thereby, the information acquisition part 11 repeats acquisition of the positional information on the terminal device 1 and the positional information on the terminal device 2, and preservation | save of each positional information for every fixed time.

  If S55 is YES, the geofence setting unit 12 sets the geofences 21 and 22 of the person A and the geofence 31 of the person B (S56), and the display unit 15 displays each set geofence (S57). . The information acquisition unit 11 acquires the location where the person B registered in the history database 16 has been in the past (S58), and the display unit 15 displays the location of the acquired person B (S59). . Thereafter, the determination unit 13 determines whether or not the geofence 31 of the person B is away from the geofence 21 of the large person A (S60). If S60 is YES, the warning notification unit 14 notifies the person A of a warning (S61). If S60 is NO, the information acquisition unit 11 determines whether or not a certain time has elapsed after S52 (S62). If S62 is NO, the information acquisition unit 11 waits until S62 becomes YES. If S62 is YES, the process of FIG. 11 returns to S52. Thereby, the information acquisition part 11 repeats acquisition of the positional information on the terminal device 1 and the positional information on the terminal device 2, and preservation | save of each positional information for every fixed time.

  FIG. 12 is a diagram illustrating an example of each geofence set by the terminal device according to the third embodiment of the present invention. In FIG. 12A, the person B moves in the direction 81, and the geofence 31 overlaps both the geofences 21 and 22. Since person B is near person A, no warning is sent to person A. In FIG. 12B, the person B moves in the direction 82, and the geofence 31 does not overlap with both the geofences 21 and 22. Since person B is far away from person A, a warning is sent to person A. The degree of warning may be increased as the geofence 31 is further away from the geofence 21 or 22. Also, by reducing the size of each geofence or increasing the number of geofences set for person A, the direction in which direction person B is moving at what speed It may be calculated and displayed superimposed on the map information. Thereby, the person A can track the trend of the person B through the map information.

  When the person B is already away from the person A, the terminal device 1 encounters the person A and the person B by repeatedly acquiring the position information of the person A and the position information of the person B while the person A is moving. The position can be predicted. Therefore, the time required for the person A to search for the person B can be greatly shortened.

  Since the acquisition result of the position information of the person B is stored in the history database 16 as a history, the past whereabouts of the person B can be displayed by using the history database 16. In particular, it is desirable to display geographical locations, i.e. specific locations such as parks, convenience stores, bookstores and the like. For example, in a department store, it is desirable to display places where the person B frequently visited in the past, such as a toy store, a side dish store, a general store, and a clothing store. By displaying these places on the map, the person A can more easily find the person B.

[Example of software implementation]
Each functional block of the terminal device shown in FIG. 1 may be realized by a logic circuit (hardware) formed in an integrated circuit (IC chip) or the like, or realized by software using a CPU (Central Processing Unit). May be.

  In the latter case, the terminal device includes a CPU that executes instructions of a program that is software that realizes each function, a ROM (Read Only Memory) or a memory in which the program and various data are recorded so as to be readable by the computer (or CPU). An apparatus (these are referred to as “recording media”), a RAM (Random Access Memory) for expanding the program, and the like are provided. And the objective of this invention is achieved when a computer (or CPU) reads the said program from the said recording medium and runs it.

  As the recording medium, a “non-temporary tangible medium” such as a tape, a disk, a card, a semiconductor memory, a programmable logic circuit, or the like can be used. The program may be supplied to the computer via an arbitrary transmission medium (such as a communication network or a broadcast wave) that can transmit the program. The present invention can also be realized in the form of a data signal embedded in a carrier wave in which the program is embodied by electronic transmission.

[Modification]
In each of the embodiments described above, an example has been described in which two geofences are set for the person A (terminal device 1), while one geofence is set for the person B (terminal device 2). The embodiment is not limited to this. For example, one geofence may be set for the person A, or two (or more) geofences may be set for the person B. That is, the terminal device 1 can set at least one geofence for the person A (terminal device 1), and can set at least one geofence for the person B (terminal device 2).

  As an example, when one geofence is set for both the person A and the person B and the person A does not want to encounter the person B, the warning notification unit 13 sets the geofence for the person A and the person B for the person B. A warning may be immediately sent to the person A based on the fact that the offense partially overlaps. The warning notification system that executes such processing is a simpler system than the warning notification system 100 of the first embodiment described above, but sufficiently achieves the purpose of avoiding the encounter of the person A with the person B. can do.

  As another example, when one geofence is set for the person A, while two geofences having different sizes are set for the person B, and the person A does not want to encounter the person B, The warning notification unit 13 notifies the first warning based on the fact that the geofence of the person A partially overlaps the geofence of the person B, and then the geofence of the person A and the small geofence of the person B A highly urgent warning may be notified when and partially overlap.

  Further, in each of the above-described embodiments, the case where both the person A and the person B move is described as an example. However, even if either the person A or the person B does not move, It is clear that the warning notification system 100 according to the embodiment functions without any problem.

[Summary]
The terminal device according to the first aspect of the present invention includes a first position information acquisition unit (information acquisition unit 11) that acquires first position information that represents the position of the terminal device, and a second that represents the position of another terminal device. A second position information acquisition unit (information acquisition unit 11) for acquiring the position information of the first, and a first setting unit (geofence for setting the first geofence (geofense 21) including the first position information) A setting unit 12), a second setting unit (geofense setting unit 12) for setting a second geofence (geofense 31) including the second position information, and the position of the first geofence, A determination unit (determination unit 13) that determines a relationship with the position of the second geofence, and a notification unit (warning notification unit) that notifies a user (person A) of the terminal device of a warning based on the determined relationship 14)

  According to said structure, the warning based on the determination result of the relationship between the position of a dynamic 1st geofence and the position of a 2nd dynamic geofence is notified to the user of a terminal device. The second geofence is information having a certain spread including second position information indicating the position of another terminal device. Thereby, for example, when it is determined that at least one part of the second geofence overlaps the first geofence, a warning can be notified. Therefore, the terminal device can more flexibly determine the relationship between the geofences for notifying the warning.

  The terminal device according to aspect 2 of the present invention is characterized in that, in the aspect 1, the first setting unit sets a plurality of the first geofences (geofens 21 and 22) having different sizes. Yes.

  According to said structure, since several dynamic 1st geofences from which a magnitude | size differs are set, the relationship between the geofences for notifying a warning can be determined more flexibly. Thereby, the user of the terminal device can easily confirm the positional relationship between the user of the terminal device and the user (person B) of the other terminal device, the moving direction of the user of the other terminal device, and the like. In addition, the terminal device can reduce processing time for confirming the position of the other terminal device or predict an action pattern of another user by using history data regarding the position information of the other terminal device. It becomes easy.

  When the terminal device according to aspect 3 of the present invention is the aspect 1 or 2 described above, the notification unit determines that the second geofence overlaps at least partially with the first geofence, or When it is determined that the second geofence is away from the first geofence, the user is notified of the warning.

  According to the above configuration, a user of a terminal device encounters a user of another terminal device based on the notified warning when the user of the other terminal device is a person (for example, a stalker) that is not preferable to the user. Can take action to avoid. Alternatively, when the user of the other terminal device is a person (for example, a family member) that is preferable to the user of the other terminal device, the user of the other terminal device prevents the user of the other terminal device from leaving based on the notified warning. Can take action.

  A terminal device according to aspect 4 of the present invention is the first aspect in any one of the above aspects 1 to 3, wherein the terminal device calculates a moving direction and a moving speed of the terminal device based on a temporal change in the position of the first geofence. A second calculation unit (determination unit 13) that calculates a movement direction and a movement speed of the other terminal device based on a temporal change in the position of the second geofence. Based on the moving direction and moving speed of the terminal device and the moving direction and moving speed of the other terminal device, the user of the terminal device and the user of the other terminal device meet or are separated by a predetermined distance And a predicting unit (determining unit 13) that predicts the warning, and the notifying unit notifies the warning according to a prediction result by the predicting unit.

  According to said structure, the user of a terminal device can receive the appropriate warning according to the future change of the relationship between an own position and the position of the user of another terminal device.

  The terminal device according to aspect 5 of the present invention is the terminal device according to aspect 4, wherein the prediction unit is based on the moving direction and moving speed of the terminal device and the moving direction and moving speed of the other terminal device. And at least one of the encounter position and the encounter time that the user of the other terminal device encounters, or the separation position and the separation time at which the user of the terminal device and the user of the other terminal device are separated by a predetermined distance At least one is further predicted, and the notification unit further notifies at least one of the predicted encounter position and the encounter time, or the predicted separation position and separation time.

  According to the above configuration, the user of the terminal device takes an appropriate avoidance action based on at least one of the notified encounter position and encounter time, or at least one of the notified separation position and separation time. be able to.

  A terminal device according to aspect 6 of the present invention overlaps with the map information acquisition unit (information acquisition unit 11) for acquiring map information and the first geofence in the map information in any of the above aspects 1 to 5. Based on a first traffic route information acquisition unit (determination unit 13) that acquires first traffic route information and a plurality of the first traffic route information acquired at different time points, a route that the user has taken is represented. A first route information acquisition unit (determination unit 13) that acquires first route information and a second route information (road information 51) that overlaps the second geofence in the map information Second route information (route information 52) representing a route taken by the other user based on a plurality of second route information acquired at different time points and a plurality of second route information acquired at different time points. Second pass to get) An information acquisition unit (determination unit 13) and a map information display unit (display unit 15) for displaying the map information are further provided. The map information display unit includes the plurality of first traffic route information and the plurality of the plurality of first traffic route information. At least one of the second traffic route information is distinguished from other traffic route information in the map information.

  According to the above configuration, the user of the terminal device intuitively understands at least one of a road such as a road or a track through which the user has passed and a road such as a road or a track through which the user of the terminal device has passed. I can grasp.

  A terminal device according to aspect 7 of the present invention is the terminal device according to any one of aspects 1 to 6, wherein the storage unit (information acquisition unit 11) stores the acquired second position information in a predetermined history table; Based on the plurality of second position information stored in the history table, an estimation unit (behavior pattern estimation unit 17) that estimates a past behavior pattern of a user of the other terminal device, and the past behavior pattern are displayed. And a display unit for performing the display.

  According to said structure, the user of a terminal device can take the suitable action according to the past action pattern of the user of the other displayed terminal device.

  In the aspect 7, the terminal device according to aspect 8 of the present invention is the place where the map information acquisition unit that acquires map information and the location information corresponding to the acquired second position information in the map information are acquired. An information acquisition unit (behavior pattern estimation unit 17), and the storage unit stores the acquired location information in the history table in association with at least the acquired location information. The estimation unit estimates at least one of the location information stored in the history table as the behavior pattern, and the display unit further displays the estimated at least one of the location information. It is characterized by.

  According to said structure, since the user of a terminal device can grasp | ascertain the past whereabouts of the user of another terminal device, he can take appropriate actions, such as avoiding the whereabouts.

  In the terminal device according to aspect 9 of the present invention, in the aspect 8, the estimation unit is configured such that, of the location information stored in the history table, the number of times stored in the history table within a predetermined period is a predetermined number. It is characterized by presuming that the place information that exceeds is the behavior pattern.

  According to said structure, the terminal device can shorten time required for estimation of an action pattern. Further, since the user of the terminal device can grasp the past location with higher accuracy related to the user of the other terminal device, it is possible to set up a measure for not encountering the user of the other terminal device with more margin.

  In the terminal device according to aspect 10 of the present invention, in the aspect 8 or 9, the estimation unit corresponds to the location information in the history table among the plurality of location information stored in the history table. The second position information estimates that the location information included in the set first geofence is the behavior pattern, and the display unit displays the estimated location information as the first location information. It is characterized by displaying in the geofence.

  According to said structure, the terminal device can shorten time required for estimation of an action pattern. Furthermore, since the user of the terminal device can grasp the past location of the user of the other terminal device in the vicinity of the terminal device, the user can quickly take action not to encounter the other user.

  A warning notification method according to aspect 11 of the present invention is a warning notification method executed by a terminal device, and includes a first position information acquisition step of acquiring first position information representing the position of the terminal device, A second position information acquisition step of acquiring second position information representing the position of the terminal device, a first setting step of setting a first geofence including the first position information, and the second A second setting step of setting a second geofence including position information; a determination step of determining a relationship between the position of the first geofence and the position of the second geofence; And a notification step of notifying a user of the terminal device of a warning based on the relationship.

  According to said structure, the relationship between the geofences for notifying a warning can be determined more flexibly.

  The terminal device according to each aspect of the present invention may be realized by a computer. In this case, a program of a terminal device that causes the terminal device to be realized by the computer by operating the computer as each unit included in the terminal device, and a computer-readable recording medium that records the program also fall within the scope of the present invention.

  The present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the claims. Embodiments obtained by appropriately combining technical means disclosed in different embodiments are also included in the technical scope of the present invention. Furthermore, a new technical feature can be formed by combining the technical means disclosed in each embodiment.

  The present invention can be suitably used for various terminal devices such as a mobile phone, a smartphone, or a tablet terminal.

  DESCRIPTION OF SYMBOLS 1 Terminal device, 2 Terminal device, 3 Server, 11 Information acquisition part, 12 Geofence setting part, 13 Judgment part, 14 Warning notification part, 15 Display part, 16 History database, 17 Action pattern estimation part, 100 Warning notification system

Claims (9)

A first position information acquisition unit that acquires first position information representing the position of the terminal device;
A second position information acquisition unit that acquires second position information representing the position of another terminal device;
A first setting unit for setting a first geofence including the first position information;
A second setting unit for setting a second geofence including the second position information;
A determination unit for determining a relationship between the position of the first geofence and the position of the second geofence;
A terminal device comprising: a notification unit that notifies a user of the terminal device of a warning based on the determined relationship.   The terminal device according to claim 1, wherein the first setting unit sets a plurality of the first geofences having different sizes.   The notifying unit determines that the second geofence is at least partially overlapped with the first geofence, or the second geofence is separated from the first geofence. 3. The terminal device according to claim 1, wherein when the determination is made, the user is notified of the warning. 4. A first calculation unit that calculates a moving direction and a moving speed of the terminal device based on a temporal change in the position of the first geofence;
A second calculating unit that calculates a moving direction and a moving speed of the other terminal device based on a temporal change in the position of the second geofence;
Based on the moving direction and moving speed of the terminal device and the moving direction and moving speed of the other terminal device, whether the user of the terminal device and the user of the other terminal device meet or leave a predetermined distance And a predictor for predicting,
The said notification part notifies the said warning according to the prediction result by the said prediction part, The terminal device of any one of Claims 1-3 characterized by the above-mentioned.   The prediction unit, based on the moving direction and moving speed of the terminal device and the moving direction and moving speed of the other terminal device, encounter positions and encounters encountered by the user of the terminal device and the user of the other terminal device. At least one of the times, or at least one of a separation position and a separation time at which the user of the terminal device and the user of the other terminal device are separated by a predetermined distance, and the notification unit is predicted The terminal device according to claim 4, further reporting at least one of the encounter position and the encounter time, or at least one of the predicted separation position and separation time. A map information acquisition unit for acquiring map information;
A first traffic information acquisition unit that acquires first traffic information overlapping the first geofence in the map information;
A first route information acquisition unit for acquiring first route information representing a route taken by the user based on the plurality of first traffic route information acquired at different points in time;
A second traffic information acquisition unit that acquires second traffic information overlapping the second geofence in the map information;
A second route information acquisition unit for acquiring second route information representing a route taken by the other user based on the plurality of second traffic route information acquired at different points in time;
A map information display unit for displaying the map information;
The map information display unit displays and displays at least one of the plurality of first traffic information and the plurality of second traffic information with other traffic information in the map information. The terminal device according to any one of claims 1 to 5. A storage unit for storing the acquired second position information in a predetermined history table;
Based on a plurality of the second position information stored in the history table, further comprising an estimation unit that estimates a past behavior pattern of the user of the other terminal device;
The terminal device according to claim 1, further comprising a display unit that displays the past behavior pattern. A warning notification method executed by a terminal device,
A first position information acquisition step of acquiring first position information representing the position of the terminal device;
A second position information acquisition step of acquiring second position information representing the position of another terminal device;
A first setting step of setting a first geofence including the first position information;
A second setting step of setting a second geofence including the second position information;
A determination step of determining a relationship between the position of the first geofence and the position of the second geofence;
And a notification step of notifying a user of the terminal device of a warning based on the determined relationship.   The program for functioning a computer as a terminal device of any one of Claims 1-7, Comprising: The program for functioning a computer as said each part.

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