JP2016017893A - Information processor, information processing system, information processing method and program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an information processing technique which assists a parent and the like to meet a search target such as a stray child more efficiently.SOLUTION: A server 1 comprises: a location history acquisition part F11 which acquires location history information indicating the history of the location of a child; a movement destination prediction part F12 which predicts the movement destination of the child in accordance with the passage of time on the basis of the acquired location history information; and a presentation part F15 which predicts from the location of a parent a range which the parent reaches in accordance with the passage of time when a presentation condition for the parent is satisfied, and presents a candidate of a meeting place of the parent and the child on the basis of the predicted range which the parent reaches in accordance with the passage of time and the predicted movement destination of the child in accordance with the passage of time.SELECTED DRAWING: Figure 9A

Description

  The present invention relates to an information processing apparatus, an information processing system, an information processing method, and a program.

  For example, when going out of a theme park or a large shopping facility, a child accompanying the guardian may get lost and the guardian may search for the child. Conventionally, techniques for supporting searching for such lost children have been proposed (see Patent Documents 1-3). For example, Patent Document 1 proposes a lost child search support method in which an information processing device specifies the location of a parent and child and sends information on the location of the specified parent and child to an output unit or a parent terminal.

JP 2011-186629 A JP 2007-241529 A JP 2001-251675 A

  For example, in order to search for a child who is lost in a facility and whose location is unknown, the guardian may use the above-described lost child search support method to grasp the location of the child and head toward the grasped location. However, there is a possibility that the child may move to another place before reaching the location known by the guardian, and the guardian cannot join the child. The possibility that the parents who could not join together will recognize the whereabouts of the child and move together increases, but in this case, useless time and useless movement may be required.

  In view of such a situation, an object of the present invention is to provide an information processing technology that supports a guardian or the like so that a search target such as a lost child can be more efficiently joined.

The present invention employs the following means in order to solve the above-described problems. That is, the present invention is the following information processing apparatus.
Position history acquisition means for acquiring position history information indicating a history of the position of the moving body;
Based on the acquired position history information, a destination prediction unit that predicts a destination according to the time of the moving body;
When a presentation condition related to a user is satisfied, a range that the user reaches over time is predicted from the position of the user, and the range that the predicted user reaches over time and the predicted moving body Presenting means for presenting a candidate for a meeting place between the user and the moving body based on a destination according to the passage of time;
An information processing apparatus comprising:

  Here, the moving body is a human or other tangible object that can move. The moving object is, for example, a lost child, but includes a case where it is an elderly person, an adult, a pet, or another person or thing.

According to the present invention, a merging place candidate is presented based on the prediction of the range that the user reaches from the position and the prediction of the destination of the moving object. Therefore, even when the moving body continues to move, there is a high probability that the user can join the moving body only by heading to the presented joining place.
Therefore, useless time and occurrence of movement are suppressed, and the user can join the search target moving body more efficiently.

  According to the present invention, a guardian or the like can join a search object such as a lost child more efficiently.

FIG. 1 is a diagram illustrating an information processing system according to the first embodiment. FIG. 2 is a diagram illustrating a hardware configuration of each device according to the first embodiment. FIG. 3 is a diagram illustrating a functional configuration of the server in the first embodiment. FIG. 4 is a diagram illustrating a hub beacon management master table. FIG. 5 is a diagram illustrating a table of a master for beacon management only for outgoing calls. FIG. 6 is a diagram illustrating a table of the terminal management master. FIG. 7 is a diagram illustrating a position history table. FIG. 8 is an explanatory diagram for explaining a method of predicting a child movement prediction area. FIG. 9A is an example of a merge support screen displayed on the guardian terminal. FIG. 9B is another example of the merge support screen displayed on the guardian terminal. FIG. 10 is a flowchart exemplifying the flow of location history information collection processing using a beacon dedicated to outgoing calls. FIG. 11 is a flowchart illustrating the flow of the location history information collection process using the guardian terminal. FIG. 12 is a flowchart illustrating the flow of a child information presentation process. FIG. 13 is a flowchart illustrating the flow of area prediction processing. FIG. 14 is a flowchart illustrating the flow of the encounter prediction area calculation process. FIG. 15 is a diagram illustrating a functional configuration of the server and the guardian terminal in the first modification. FIG. 16 is a diagram illustrating an information processing system according to the second embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The embodiment described below shows an example for carrying out the present invention, and the present invention is not limited to a specific configuration described below.

The description is described in the following order.
1. Embodiment 1
1.1. Configuration of information processing system 1.2. Hardware configuration of each device 1.3. Functional configuration 1.4. Flow of processing 1.5. Summary 2. Modification 1
3. Modification 2
4). Embodiment 2
5). Other

Embodiment 1
The first embodiment (hereinafter also referred to as “this embodiment”) will be described. In the present embodiment, the “information processing apparatus” is implemented as a server. The information processing system according to the present embodiment provides information regarding the position of a child who has become a lost child as an example of a “moving object” to a guardian as an example of a “user” in a facility, and searches for lost children. To help. For example, the information processing system provides information indicating candidates for a meeting place between the guardian and the child. In the present embodiment, it is assumed that the guardian and the child move on foot. In addition, instead of a lost child, search for an elderly person, a pet, or the like may be supported.

<Configuration of information processing system>
FIG. 1 is a diagram illustrating an information processing system according to this embodiment. FIG. 1 shows a server 1, the Internet N, and a facility F. Within the facility F, a reader hub beacon 2, a plurality of sub-hub beacons 3, a call-only beacon 4, and a guardian terminal 5 are illustrated. Has been. Although only one guardian terminal 5 is shown in FIG. 1, the information processing system has a number of guardian terminals 5 corresponding to the number of guardians to be supported. Further, although only one outgoing beacon 4 is shown, the information processing system has as many outgoing dedicated beacons 4 as the number of children to be searched.

  The server 1 provides the guardian terminal 5 with information regarding the positions of children and guardians. The server 1 is connected to the Internet N and can communicate with the reader hub beacon 2 and the guardian terminal 5. The server 1 has a position management database D11 and accumulates position history information indicating the position history in the facilities F of the guardian and the child. Details of the hardware of the server 1 will be described later.

  Facility F is a facility used by parents and children. The facility F is a variety of indoor and outdoor facilities, such as a large-scale shopping facility including a theme park, a department store, and a shopping center, and an event venue. The facility F may be a movable facility such as a large passenger ship.

  The reader hub beacon 2 and the sub hub beacon 3 are wireless communication devices that wirelessly communicate with the nearby guardian terminal 5 and the outgoing beacon 4. Hereinafter, the reader hub beacon 2 and the sub hub beacon 3 are collectively referred to as “hub beacon”. The information processing system according to the present embodiment measures the positions of the guardian terminal 5 and the call-only beacon 4 based on wireless communication between the guardian terminal 5 and the call-only beacon 4 performed by the hub beacon. Collect location information. In the present embodiment, each hub beacon is arranged one by one near the center of each divided area when the site of the facility F is divided into a lattice. Each divided area is, for example, a square area having a side of 10 meters. Each hub beacon serves as a mark indicating each position in the facility F. The resolution of positioning is determined by the shape and size of the area where the hub beacon is placed. The site of the facility F may be divided so that each area has a hexagonal shape.

  The hub beacon is specifically a communication device of BLE (Bluetooth (registered trademark) Low Energy). The hub beacon includes an antenna, a transmission / reception circuit for BLE communication, and a timing circuit, and transmits and receives BLE communication radio waves. Each hub beacon is assigned a hub beacon ID that identifies the hub beacon from other hub beacons.

  The leader hub beacon 2 supplies power to the sub hub beacon 3 and communicates with the server 1 and the sub hub beacon 3. The reader hub beacon 2 is connected to the sub hub beacon 3 via a connection line for power supply and communication. The sub-hub beacon 3 operates with power supplied from the reader-hub beacon 2.

  The transmission-only beacon 4 is a small wireless communication device that is carried by a child and serves as a mark of the child's position. Specifically, the outgoing beacon 4 is a BLE communication device that operates with a built-in battery, and emits a predetermined BLE communication radio wave. Each beacon 4 exclusively for transmission is assigned a beacon ID that identifies the beacon 4 exclusively for transmission from other BLE communication devices. The transmission-only beacon 4 of the present embodiment emits the communication radio wave described above at a predetermined cycle (for example, once or twice per second). The outgoing beacon 4 is distributed to a child who enters the facility F by, for example, the operator of the facility F. The outgoing beacon 4 is preferably a dedicated communication device, but may be a general-purpose information terminal such as a smartphone having a BLE communication function.

  The guardian terminal 5 is an information terminal that is carried by a guardian and is operated by the guardian to receive search assistance for a lost child from the information processing system. The guardian terminal 5 is, for example, a smartphone. The guardian terminal 5 communicates with the server 1 via the Internet N and receives provision of information regarding the position of the child from the server 1. Further, the guardian terminal 5 has a BLE communication function and receives a communication radio wave emitted by a hub beacon. Details of the hardware of the guardian terminal 5 will be described later. The guardian terminal 5 may be a tablet terminal, a notebook computer, a smart glass, another wearable device, or the like.

  The Internet N is a global public packet communication network, and connects the server 1, the reader hub beacon 2, and the guardian terminal 5. Instead of the Internet N, a LAN (Local Area Network), a WAN (Wide Area Network), and other packet communication networks may be employed.

<Hardware configuration of each device>
FIG. 2 is a diagram illustrating a hardware configuration of each device according to the present embodiment. FIG. 2 shows the hardware configuration of the server 1 and the guardian terminal 5.

  The server 1 is connected to the Internet N via a CPU (Central Processing Unit) 11, a RAM (Random Access Memory) 12, a ROM (Read Only Memory) 13, an auxiliary storage device 14 such as a HDD (Hard Disk Drive), and a gateway. The computer includes an NIC (Network Interface Controller) 15 and a clock 16. In FIG. 2, the server 1 is exemplified by a single computer, but the server 1 may be a plurality of computers connected by a network, for example.

  The CPU 11 is a central processing unit, and controls the RAM 12, the auxiliary storage device 14, and the like by processing instructions and data expanded in the RAM 12 and the like. The RAM 12 is a main storage device and is controlled by the CPU 11 to write and read various commands and data. The auxiliary storage device 14 is a non-volatile storage device and stores various programs, data required to be permanently stored, and the like.

  The guardian terminal 5 is a computer that includes an auxiliary storage device 54 such as a CPU 51, a RAM 52, a ROM 53, and an SSD (Solid State Drive). The guardian terminal 5 also includes an NIC 55 connected to the Internet N via a wireless LAN access point, a clock 56, a display unit 57 such as a display, and an operation unit 58 such as a touch panel. The guardian terminal 5 also includes a BLE communication module 59 that performs BLE communication. The guardian terminal 5 may be connected to the Internet N via a mobile phone communication network such as LTE (Long Term Evolution) instead of the NIC 55.

<Functional configuration>
(Server 1 function)
FIG. 3 is a diagram illustrating a functional configuration of the server 1 in the present embodiment. The server 1 reads out the program stored in the auxiliary storage device 14 to the RAM 12 and executes it by the CPU 11 so that the position management database D11, the position history acquisition unit F11, the movement destination prediction unit F12, and the arrival range prediction. It functions as a computer provided with the part F13, the meeting place specific | specification part F14, and the presentation part F15. The position management database D11 is constructed by managing the data stored in the auxiliary storage device 14 by the database management system program to be executed. The position history acquisition unit F11 and the movement destination prediction unit F12 are examples of “position history acquisition unit” and “movement destination prediction unit”, respectively. Further, an assembly of the reach range prediction unit F13, the meeting place identification unit F14, and the presentation unit F15 corresponds to an example of “presentation means”.

  In the present embodiment, each function provided in the server 1 is executed by the CPU 11 that is a general-purpose processor. However, part or all of these functions are performed by one or more dedicated processors, hardware arithmetic circuits, and the like. May be executed. Here, the hardware arithmetic circuit refers to, for example, an adder circuit, a multiplier circuit, a flip-flop, etc. combined with logic gates. Some or all of these functions may be executed by a separate computer.

  The position management database D11 is a database that accumulates position history information indicating a history of positions of parents and children. The position management database D11 of this embodiment is constructed as a relational database. The position management database D11 includes a hub beacon management master, a transmission-only beacon management master, a terminal management master, and a position history table as tables. The location management database D11 may be constructed as a database other than a relational database, such as an object-oriented database or an XML (Extensible Markup Language) database.

  FIG. 4 is a diagram illustrating a hub beacon management master table. The hub beacon management master is used to manage a hub beacon placed in the facility F. In one record of the hub beacon management master, coordinates indicating the position of the hub beacon are mainly stored as information for managing one hub beacon. The hub beacon management master has columns of hub_id, hub_status, area_no, location_x, and location_y.

  The hub_id column represents a hub beacon ID that identifies a management-target hub beacon. The hub_status column represents the type of reader / sub indicating whether the hub beacon to be managed is the reader hub beacon 2 or the sub hub beacon 3. The area_no column represents a coordinate management number indicating the position of the hub beacon to be managed. The location_x column represents the x coordinate of the two-dimensional coordinates indicating the position of the management-target hub beacon. The location_y column represents the y coordinate of the two-dimensional coordinates indicating the position of the hub beacon to be managed.

  In the present embodiment, the position in the facility F is represented by a set of x and y coordinates. Each coordinate indicates the position of each divided area when the site of the facility F is divided into a grid as described above, and the coordinate value 1 corresponds to one area. In the following description, an area may be expressed by two-dimensional coordinates in the format of (x coordinate value, y coordinate value). In the present embodiment, only the horizontal movement of the child and the guardian is considered. However, for example, three-dimensional coordinates may be used, and the search for the lost child may be supported in consideration of the vertical movement. By doing in this way, when the facility F is a department store or the like having a plurality of floors, suitable search support can be performed.

FIG. 5 is a diagram illustrating a table of a master for beacon management only for outgoing calls. The outgoing beacon management master is used to manage outgoing beacon 4 and information for managing one outgoing beacon 4 is stored in one record of the outgoing beacon management master. . The outgoing beacon management master has send_id and partner_id columns.

  The send_id column represents a beacon ID that identifies the transmission-only beacon 4 to be managed. The partner_id column represents a terminal ID for identifying the guardian terminal 5 associated with the outgoing beacon 4 and takes the value of the terminal ID registered in the terminal management master described later. In the present embodiment, the call-only beacon management master record has a one-to-one correspondence between the call-only beacon 4 carried by the child and the guardian terminal 5, and the guardian and the child to be protected by the guardian. Pairs are managed.

  FIG. 6 is a diagram illustrating a table of the terminal management master. The terminal management master is used to manage the guardian terminal 5, and information for managing one guardian terminal 5 is stored in one record of the terminal management master. The terminal management master has a device_id column. The device_id column represents a terminal ID that identifies the guardian terminal 5 that accesses the server 1.

  FIG. 7 is a diagram illustrating a position history table. The position history table is used for storing position history information indicating the history of the positions of parents and children. One record of the position history table stores one piece of position history information indicating the position of the guardian or the child measured at one time. The location history table has columns of device, device_id, hub_id, and time.

  The device column represents the type of the positioning target device, and takes the value of “calling beacon” or “guardian terminal”. From the value of the device column, it is grasped whether the record stores the position history information of the child or the guardian. The device_id column represents an ID for identifying a positioning target device, and takes a beacon ID or a terminal ID value. The hub_id column represents a hub beacon ID that identifies a hub beacon indicating a position that has been measured. By referring to the hub beacon management master using the value of the hub beacon ID column, the coordinate data can be extracted and the position indicated by the position history information can be specified. Therefore, it can be said that the hub_id column of the position history table indicates the position. The time column represents the positioning time.

  The position history acquisition unit F11 acquires position history information indicating the position history of parents and children from the position management database D11.

  The movement destination prediction unit F12 predicts a movement destination according to the time of the child as a movement prediction area based on the child position history information acquired by the position history acquisition unit F11.

  FIG. 8 is an explanatory diagram for explaining a method of predicting a child movement prediction area. FIG. 8 shows prediction patterns A, B, and C corresponding to the past area indicating the position of the child in the past 60 seconds. Each area divided by the lattice is a 10 m square area. A circle symbol (◯) indicates a child, and an arrow indicates movement. In the upper part, the past area of the child is illustrated. In the lower part, a movement prediction area is illustrated. The patterns A, B, and C will be described in order.

(1) Prediction pattern A: When the past area is the same area The movement destination prediction unit F12, when the coordinates of the area where there was a child indicated by each position history information from 60 seconds ago to the present match, Assuming that the child remains in the matched area, the area is predicted as the child movement prediction area.
(2) Prediction pattern B: When the past area is in an area adjacent to the current area of the child The destination prediction unit F12 indicates that any of the positions indicated by the location history information from 60 seconds before to the present is If the current area, which is the latest position, is within a range that is one area away from the current page in the left-right direction (x-axis direction) or up-down direction (y-axis direction), the range is predicted as a movement prediction area.
(3) Prediction pattern C: Other cases The movement destination prediction unit F12 estimates the current movement direction and movement speed of the child from the position history information when the past area does not correspond to any of the prediction patterns A and B. The movement destination when moving in the estimated movement direction at the estimated movement speed is predicted as a movement prediction area. The said estimation is performed based on the change of the latest position, for example. FIG. 8 shows an example in which the rightward movement is estimated.

  According to the prediction of the prediction pattern A of the present embodiment, it is possible to predict a child's behavior of staying on the spot, and to improve the accuracy of movement prediction. In particular, when positioning with high resolution is performed, it can be accurately determined that there is no movement of the child, so that it is possible to predict that the child will stay on the spot with higher accuracy. Further, according to the prediction of the prediction pattern B of the present embodiment, it is possible to predict a child's behavior of moving around a narrow range such as going back and forth, and it is possible to improve the accuracy of movement prediction. Further, according to the prediction of the prediction pattern C of the present embodiment, it is possible to predict the progress of the child.

  The reachable range predicting unit F13 predicts the range that the guardian reaches from the current area indicating the current position of the guardian over time based on the assumed moving speed of the guardian.

  The joining location specifying unit F14 indicates a place where the range predicted by the reach prediction unit F13 and the child predicted by the destination prediction unit F12 overlaps with the range predicted by the guardian. And an encounter prediction area that is a candidate for a meeting place with the child. The meeting place specific | specification part F14 of this embodiment specifies the place which overlapped in the time of the earliest prediction as an encounter prediction area.

When the presentation unit F15 receives an information acquisition request regarding a child from the guardian terminal 5, the presenting unit F15 presents information regarding the position of the child associated with the guardian terminal 5 to the guardian terminal 5. In addition, when presentation part F15 receives the information acquisition request | requirement regarding a child from the guardian terminal 5, it corresponds to an example of "when the presentation condition regarding a user is satisfy | filled." The presentation unit F15 classifies the distance between the guardian and the child into (1) “far”, (2) “medium”, and (3) “close” by comparing with the reference distance, and is different in each case. Present content information. Each case will be described.
(1) When the distance between the guardian and the child is long The presentation unit F15 continues to present the current area of the latest child and guardian at the time of presentation repeatedly. That is, the current areas of the child and the guardian are provided in so-called real time.
(2) When the distance between the guardian and the child is medium The presentation unit F15 presents an encounter prediction area between the guardian and the child. The presentation unit F15 also presents the predicted movement area of the child predicted by the reach prediction unit F13, the current area of the child, and the current area of the guardian. If the child's movement prediction area does not meet the criteria, such as when the child travels in the estimated direction of movement of the child, the direction of the child's movement is not fixed because the path branches, etc. The part F15 may provide the current areas of the child and the guard in real time as in the case of (1) without presenting the encounter prediction area.
(3) When the distance between the guardian and the child is short The presentation unit F15 presents the current area of the latest child and guardian at the time of presentation.

Each of the three classifications (1) to (3) of the present embodiment has a “short” time required for the parent to join the child (the parent can join the child immediately), “Medium” (the guardian can join the child in a reasonable time) and “long” (the guardian takes a considerable amount of time to join the child). In this embodiment, two reference distances indicating the boundary between (1) “far” and (2) “medium” and (2) “medium” and (3) “close” Are determined by an increase function of the movement speed such that the value increases as the assumed movement speed of the guardian increases. For any moving speed, the value of the increase function representing the reference distance of the boundary between (1) “far” and (2) “medium” is (2) “medium” and (3) It is set to be larger than the value of the increasing function that represents the reference distance of the boundary between “close”. In addition, these increase functions may be represented by numerical formulas, and may be represented as a table indicating the relationship between the moving speed and the reference distance.

  The presentation unit F15 generates display data, transmits the generated display data to the guardian terminal 5, and causes the guardian terminal 5 to display the display data as a merge support screen. The join support screen will be described with reference to FIG. 9A and FIG. 9B, taking as an example “(2) the case where the distance between the guardian and the child is medium”.

  FIG. 9A is an example of a merge support screen displayed on the guardian terminal 5. The merge support screen includes a map SC11 of the facility F, a child movement prediction area SC12, an encounter prediction area SC13, a child current area SC14, a guardian's current area SC15, a guardian's merge path SC16, and a child's movement direction SC17. Is included. The map SC11 is represented by a grid. Each area divided by the lattice is a 10 m square area as in FIG. 8, and indicates each position in the facility F. FIG. 9A shows an x-coordinate value that increases toward the right side of the page and a y-coordinate value that increases toward the bottom of the page. Each area can be specified by a set of x and y coordinates.

  FIG. 9A shows that the child is predicted to move from the current area (3, 2) in the x direction at a moving speed of 2 areas in 60 seconds, and the guardian moves from the current area (4, 5) to 4 areas in 60 seconds. It is a merging support screen provided when it is assumed to move in In FIG. 9A, the encounter prediction area SC13 is shown in the area (5, 2), and this area is a place where the guardian can catch up with the child after 60 seconds.

  FIG. 9B is another example of a merge support screen displayed on the guardian terminal 5. 9B is similar to FIG. 9A, the facility SC map SC21, child movement prediction area SC22, encounter prediction area SC23, child current area SC24, guardian current area SC25, guardian merge path SC26A, SC26B, and child movement direction SC27 are included. The join support screen in FIG. 9B further includes an obstacle SC28 that is an area where children and guardians cannot pass.

  FIG. 9B shows an encounter prediction area SC23 in the area (7, 2) on the assumption that the current area and movement speed of the child and the guardian are the same as those in FIG. 9A. Is the place to catch up with the child 120 seconds later. The guardian moves along the merging route SC26A passing through the area (8, 5) or the merging route S26B passing through the area (3, 2), thereby bypassing the obstacle SC28 and encounter encounter area SC23. Can arrive at.

(Function of outgoing beacon 4)
The transmission-only beacon 4 repeatedly emits a BLE communication radio wave that carries the beacon ID assigned to the transmission-only beacon 4 itself, for example, at a predetermined cycle such as 0.5 seconds or 1 second. For example, the beacon 4 exclusively for sending out broadcasts a BLE advertising packet including a beacon ID.

(Hub beacon function)
When the hub beacon receives a BLE communication radio wave from the outgoing beacon 4, the hub beacon generates the radio wave reception information indicating that the radio wave has been received from the approaching outgoing beacon 4 including the reception time and sends it to the server 1. Send. Also, the hub beacon repeatedly emits a BLE communication radio wave carrying the hub beacon ID assigned to the hub beacon itself at a predetermined cycle such as 0.5 seconds or 1 second, like the beacon dedicated to transmission 4.

(Function of the guardian terminal 5)
The guardian's terminal 5 functions as a computer having various functions for assisting in searching for a lost child when a dedicated application or the like is executed by the CPU 51. The guardian terminal 5 receives an operation from the guardian via the operation unit 58 and transmits an information acquisition request regarding the child to the server 1. Further, when the guardian terminal 5 receives the display data from the server 1, the guardian terminal 5 displays a joining support screen on the display unit 57 based on the display data. Further, when receiving the BLE communication radio wave from the hub beacon, the guardian terminal 5 generates radio wave reception information indicating that the radio wave has been received from the approaching hub beacon including the reception time and transmits it to the server 1. To do.

<Process flow>
The main processing flow of the information processing system according to the present embodiment will be described with reference to FIGS. Note that the contents and order of the processes to be described are examples, and it is preferable to appropriately adopt the contents and order of the processes that are suitable for the embodiment.

(Collect location history)
FIG. 10 is a flowchart illustrating a flow of location history information collection processing using the beacon 4 dedicated to outgoing calls. This processing flow is started when the beacon 4 dedicated to transmission emits a BLE communication radio wave and the communication radio wave reaches one of the hub beacons.

  In step S <b> 101, the hub beacon receives a communication radio wave emitted from the outgoing beacon 4 and receives information on the approaching outgoing beacon 4. Specifically, first, the hub beacon receiving circuit calculates a value of RSSI (Received Signal Strength Indication) which is the received signal strength. The hub beacon detects the approach of the outgoing beacon 4 when the calculated RSSI value exceeds a preset threshold. The hub beacon that has detected the approach acquires a beacon ID that identifies the source of the communication radio wave from the communication signal carried by the received communication radio wave. The hub beacon transmits the radio wave reception information to the server 1 including the beacon ID indicating the transmission source, the calculated RSSI value, the reception time when the communication radio wave is received, and the hub beacon ID assigned to the hub beacon itself. Send. When the hub beacon is the sub-hub beacon 3, the transmitted radio wave reception information is relayed by the reader hub beacon 2 and reaches the server 1.

  In step S <b> 102, the server 1 receives the radio wave reception information related to the outgoing beacon 4 from the hub beacon.

In step S103, it is determined whether the server 1 has received a plurality of pieces of radio wave reception information related to communication radio waves simultaneously emitted from one outgoing beacon 4. Communication radio waves emitted by the outgoing beacon 4 may be received by a plurality of hub beacons at approximately the same time. In this case, the radio wave reception information transmitted by each of the plurality of hub beacons may reach the server 1. Here, the server 1 specifically, among the radio wave reception information received at substantially the same time, the radio wave reception information that satisfies the condition that the beacon ID indicating the transmission source is the same and the reception time is the same. It is determined whether or not there is a plurality. If it is determined that there are a plurality of pieces of radio wave reception information that satisfy the condition (S103; Yes), the process proceeds to step S104. If it is not determined that there are a plurality of pieces of radio wave reception information that satisfy the condition (S103; No), the process proceeds to step S105.

  In step S104, the server 1 identifies the radio wave reception information of the outgoing beacon 4 having the strongest radio wave intensity. Specifically, the server 1 identifies the one with the maximum RSSI value from among the plurality of radio wave reception information groups determined to exist in step S103, and sets it as the target of processing in step S105.

  In step S105, the server 1 records position history information indicating the history of the position of the beacon 4 exclusively for transmission based on the radio wave reception information. Here, the radio wave reception information to be processed is the information received in step S102, and in the case of passing through step S104, the RSSI value specified in step S104 is the maximum. Specifically, the server 1 adds a record to the position history table of the position management database D11. The added records include “calling-only beacon”, beacon ID of radio wave reception information, hub beacon ID of radio wave reception information, and radio wave reception information as values of the device column, device_id column, hub_id column, and time column, respectively. Stores the reception time. Here, since the hub beacon ID can be replaced with the coordinates of the hub beacon by referring to the hub beacon management master table, the history of the position of the call-only beacon 4 is recorded by the added record. Become. Then, by repeating the above processing flow, the position history information of the child carrying the outgoing beacon 4 is collected.

  In the present embodiment, position history information corresponding to only the largest RSSI value among the radio wave reception information received at approximately the same time is recorded by the processes of steps S103, S104, and the like. As another example, the server 1 may store all the received radio wave reception information in the position management database D11 as the position history information of the call-only beacon regardless of the RSSI value. In this case, when multiple pieces of radio wave reception information having the same reception time are stored in the position management database D11, the position history acquisition unit F11 of the server 1 uses the one with the largest RSSI value as the position history information at the reception time. You may get it.

  FIG. 11 is a flowchart illustrating the flow of the collection process of location history information using the guardian terminal 5. This processing flow is started when a BLE communication radio wave emitted by any of the hub beacons reaches the guardian terminal 5.

  In step S201, the guardian terminal 5 receives a communication radio wave emitted from a hub beacon, and receives information related to the approached hub beacon. Specifically, first, the receiving circuit of the BLE communication module 59 of the guardian terminal 5 determines the RSSI value that is the received signal strength. The guardian terminal 5 detects the approach to the hub beacon when the calculated RSSI value exceeds a preset threshold value. The guardian terminal 5 that has detected the approach acquires a hub beacon ID that identifies the hub beacon that is the source of the communication radio wave from the BLE communication signal carried by the received communication radio wave.

  In step S202, it is determined whether or not the guardian terminal 5 has received a communication radio wave that carries information related to the hub beacon from a plurality of hub beacons simultaneously. BLE radio waves emitted by a plurality of hub beacons may be received by the guardian's terminal 5 at approximately the same time with a received signal strength exceeding a threshold value. When it is determined that the communication radio waves are received simultaneously (substantially at the same time) from a plurality of hub beacons (S202; Yes), the process proceeds to step S203. When it is not determined that the communication radio waves are simultaneously received from a plurality of hub beacons (S202; No), the process proceeds to step S204.

  In step S <b> 203, the guardian terminal 5 specifies information related to the hub beacon having the strongest radio wave intensity. Specifically, the guardian terminal 5 identifies the communication radio wave received from a plurality of hub beacons that has the maximum RSSI value determined at the time of reception, and sets it as the target of processing in step S204.

  In step S204, the guardian terminal 5 transmits to the server 1 radio wave reception information indicating that a radio wave has been received from the hub beacon. Specifically, the guardian terminal 5 is assigned to a hub beacon ID indicating the source of the communication radio wave, the calculated RSSI value, the reception time that is the time when the communication radio wave is received, and the guardian terminal 5 itself. Radio wave reception information including the terminal ID is transmitted to the server 1. Here, the communication radio wave to be processed is the one received in step S201, and in the case of passing through step S203, the RSSI value specified in step S203 is the maximum.

  In step S205, the server 1 receives the radio wave reception information transmitted from the guardian terminal 5, and records the position history information indicating the history of the position of the guardian terminal 5 based on the radio wave reception information. . Specifically, the server 1 adds a record to the position history table of the position management database D11. The added records are “guardian terminal”, terminal ID of the guardian terminal 5, hub beacon ID of radio wave reception information, and radio wave reception information as values of the device column, device_id column, hub_id column, and time column, respectively. Stores the reception time of. Here, since the hub beacon ID can be replaced with the position coordinates of the hub beacon by referring to the hub beacon management master table, the history of the position of the guardian terminal 5 is recorded by the added record. become. Then, by repeating the above processing flow, the position history information of the guardian carrying the guardian terminal 5 is collected.

  In the present embodiment, the guard terminal 5 transmits to the server 1 radio wave reception information corresponding only to the maximum RSSI value among the communication radio waves received at approximately the same time by the processing of steps S202 to S204. did. As another example, the guardian terminal 5 may transmit each radio wave reception information indicating that each communication radio wave is received to the server 1 regardless of the RSSI value. In this case, the server 1 stores each received radio wave reception information in the location management database D11 as location history information of the guardian terminal 5. On the other hand, when a plurality of pieces of radio wave reception information having the same reception time are stored in the position management database D11, the position history acquisition unit F11 of the server 1 acquires the one having the largest RSSI value as the position history information at the reception time. May be.

(Presentation of child information)
FIG. 12 is a flowchart illustrating the flow of a child information presentation process. This processing flow is executed by the server 1.

  In step S301, it is determined whether the presentation part F15 received the information acquisition request regarding a child. The information acquisition request is transmitted from the guardian terminal 5 that has accepted the guardian's operation. The information acquisition request includes a terminal ID for identifying the requesting parent terminal 5. For example, when the child notices that the child is lost, the guardian activates a dedicated application and performs the operation in order to request assistance for searching for the child.

  If it is determined in step S301 that an information acquisition request has been received, the processes in and after step S302 are executed. If it is not determined in step S301 that an information acquisition request regarding a child has been received, the process ends. In this case, the server 1 waits until an information acquisition request regarding the child is received.

  In step S302, the position history acquisition unit F11 acquires the current area of the child-dedicated beacon 4 associated with the parent terminal 5 that is the request source of the information acquisition request regarding the child. Specifically, first, using the terminal ID included in the information acquisition request as a key, the call-only beacon 4 associated with the requesting parent terminal 5 is transmitted from the call-only beacon management master in the location management database D11. A beacon ID is extracted. Next, the location history table of the location management database D11 and the hub beacon management master are referred to, and the coordinates of the area where the outgoing beacon 4 identified by the extracted beacon ID is finally located are extracted. The coordinates extracted here are acquired as the current area of the call-only beacon 4, that is, the current area of the child carrying the call-only beacon 4.

  In step S303, the current area of the guardian terminal 5 and the assumed moving speed are acquired. Specifically, first, the coordinates of the area where the guardian terminal 5 was last measured are extracted from the position history table and the hub beacon management master table of the position management database D11. The coordinates extracted here are acquired as the current area of the guardian terminal 5, that is, the current area of the guardian carrying the guardian terminal 5.

  Further, the assumed moving speed is calculated and acquired based on the position history information of the guardian, for example. In this case, the server 1 detects a linear movement of a predetermined distance or more (for example, three areas or more) from the change in position indicated by the position history information of the guardian acquired by the position history acquisition unit F11, and The average speed is calculated as the assumed moving speed of the guardian. According to such a calculation, a moving speed according to the exercise ability of the guardian and the moving environment of the facility F can be obtained. Further, in order to allow the guardian to move with a margin, the assumed moving speed may be a speed that is slower than the calculated moving speed by a predetermined amount. Further, the assumed moving speed may be a value set in advance by a guardian or a value such as a normal walking speed (4 km / h).

  In step S304, the presentation unit F15 determines whether the distance between the current area of the guardian and the current area of the child is within a predetermined number of areas. This determination is for determining whether or not the distance between the guardian and the child is short, that is, whether or not the guardian can immediately join the child. Here, the predetermined number of areas corresponds to the above-mentioned reference distance and is a value corresponding to the assumed moving speed of the guardian, which is obtained by an increasing function of the moving speed. The predetermined number of areas takes, for example, a value of 3 areas when the assumed moving speed of the guardian is 4 km / h, and 5 when the assumed moving speed of the guardian is 6 km / h. Takes the value of the area. If it is determined that the distance between the current area of the guardian and the current area of the child is within the predetermined number of areas (S304; Yes), the process proceeds to step S305. If it is not determined in step S304 that the distance between the current area of the guardian and the current area of the child is within the predetermined number of areas (S304; No), the process proceeds to step S306.

  In step S305, the presentation unit F15 transmits information on the current area of the guardian and the current area of the child to the guardian terminal 5. The transmitted information is display data for the guardian terminal 5 to display the guardian's current area and the child's current area. On the other hand, when receiving the display data, the guardian terminal 5 includes a map, a symbol representing the current area of the guardian on the map, and a symbol representing the current area of the child on the map based on the display data. The merge support screen is displayed on the display unit 57.

In step S306, the presentation unit F15 determines whether the distance between the current area of the guardian and the current area of the child is equal to or greater than a predetermined number of areas. This determination is for determining whether or not the distance between the guardian and the child is long, that is, whether or not it takes a considerable amount of time for the guardian to join the child. Here, the predetermined number of areas corresponds to the above-mentioned reference distance and is a value corresponding to the assumed moving speed of the guardian, which is obtained by an increasing function of the moving speed. The predetermined number of areas takes a value larger than the predetermined number of areas used in the determination in step S304. For example, when the assumed moving speed of the guardian is 4 km / h, the value of the eleventh area is taken. When the assumed moving speed is 6 km / h, the value of 16 areas is taken. If it is determined that the distance between the current area of the guardian and the current area of the child is equal to or greater than the predetermined number of areas (S306; Yes), the process proceeds to step S307. If it is not determined that the distance between the current area of the guardian and the current area of the child is equal to or greater than the predetermined number of areas (S306; No), the process proceeds to step S310.

  In step S307, the presentation unit F15 turns on the real-time processing flag. While the real-time processing flag is on, the server 1 does not receive a new request from the guardian terminal 5, and sends the latest child to the guardian terminal 5 that has requested the information acquisition request in step S301. Continue to present current area information immediately.

  In step S308, the presentation unit F15 transmits information on the current area of the guardian and the current area of the child to the guardian terminal 5. The current area of the guardian and the current area of the child are the latest ones indicated by the position history information that can be acquired by the position history acquisition unit F11 when step S308 is executed. On the other hand, the guardian terminal 5 receives the information and displays a join support screen including a map, a symbol representing the guardian's current area on the map, and a symbol representing the child's current area on the map on the display unit 57. indicate.

  In step S309, the presentation unit F15 determines whether or not the real-time processing flag is turned off. Specifically, the presentation unit F15 determines whether the distance between the current area of the guardian and the current area of the child is equal to or greater than the predetermined number of areas, as in step S306. The current area of the guardian and the current area of the child referred to here are the latest ones indicated by the position history information that can be acquired by the position history acquisition unit F11 at the time when step S309 is executed. If it is not determined that the distance between the current area of the guardian and the current area of the child is equal to or greater than the predetermined number of areas, it is determined that the real-time processing flag is turned off (S309; Yes), and the real-time processing flag is turned off. Thus, the processing flow ends. If it is determined in step S309 that the distance between the current area of the guardian and the current area of the child is equal to or greater than the predetermined number of areas, it is determined that the real-time processing flag is not turned off (S309; No), and the process proceeds to step S308. Return. It should be noted that the real-time processing flag may be turned off and the processing flow may be terminated upon receiving an instruction from the guardian terminal 5 indicating that real-time processing is to be stopped.

  In step S310, area prediction processing is executed. Here, the predicted movement area of the child, the predicted area of encounter between the guardian and the child, and the like are calculated and transmitted to the guardian terminal 5. Details of this processing will be described later. Note that the process of step S310 is executed when it is determined No in step S304 and No in step S306, that is, the distance between the guardian and the child is medium, that is, the guardian is a child. It is a case where it is determined that it can be merged in an appropriate time.

According to the processing flow of FIG. 12, different types of information are transmitted to the guardian terminal 5 according to the distance between the guardian and the child. When parents and children are far away and it takes a considerable amount of time to join, the prediction accuracy of the child's destination may be reduced, so information on the current area that is not predicted is presented. The Therefore, it is possible to prevent the guardian from being misled by providing information with low accuracy. Furthermore, when the guardian and the child are far away, the current area information is presented in real time, so that the guardian can obtain more useful information for joining the child at each time point. In addition, when there is a high probability that the guardian and the child are close and the guardian can find the child immediately, information on the current area that is not predicted is presented. In this case, since the process for specifying the encounter prediction area is not executed, and the real-time presentation process is not executed, the processing load on the server 1 or the like can be suppressed.

(Area prediction)
FIG. 13 is a flowchart illustrating the flow of area prediction processing. The flow of this process shows the details of the process in step S310 in FIG.

  In step S <b> 401, the movement destination prediction unit F <b> 12 analyzes the past area for the last 60 seconds of the call-only beacon 4 associated with the guardian terminal 5. The past area to be analyzed is a set of positions indicated by the position history information of the child between 60 seconds ago and the current time, and is extracted from the position management database D11 by the position history acquisition unit F11.

  In step S402, the movement destination prediction unit F12 determines whether or not the past area for the last 60 seconds, which is the analysis target, is in the same area. Specifically, coordinates indicating positions included in the past area are compared, and when all are the same, it is determined that the past area is in the same area. If it is determined that the past area is in the same area (S402; Yes), the process proceeds to step S403. When it is not determined in step S402 that the past area is in the same area (S402; No), the process proceeds to step S404.

  In step S403, the movement destination prediction unit F12 predicts that the child's future movement prediction area is within the child's current area. That is, the movement destination prediction unit F12 predicts that the child will continue to stay in the current area. This prediction corresponds to the prediction pattern A described with reference to FIG.

In step S404, the movement destination prediction unit F12 determines whether or not the past area for the last 60 seconds to be analyzed is within the area adjacent to the child's current area. Specifically, when both of the x-coordinate and y-coordinate pairs indicating the positions included in the past area satisfy the following expression, the past area is determined to be within the area adjacent to the child's current area. .
[Equation 1]
(X coordinate of the current area) −1 ≦ x coordinate ≦ (x coordinate of the current area) +1,
(Y coordinate of the current area) −1 ≦ y coordinate ≦ (y coordinate of the current area) +1

  If it is determined that the past area is within the area adjacent to the current area of the child (S404; Yes), the process proceeds to step S405. If it is not determined that the past area is within the area adjacent to the current area of the child (S404; NO), the process proceeds to step S406.

  In step S405, the movement destination prediction unit F12 predicts the future movement prediction area of the child within the current adjacent area. That is, the movement destination prediction unit F12 predicts that the child remains in the coordinate range that satisfies the above-described equation (1). This prediction corresponds to the prediction pattern B described with reference to FIG.

  In steps S406 and S407, a prediction process corresponding to the prediction pattern C described with reference to FIG. 8 is executed.

In step S406, the latest moving direction of the child is acquired, and the moving speed is calculated. For example, the movement destination prediction unit F12 detects the last linear movement from the change in the position indicated by the child position history information, acquires the direction of the linear movement as the latest movement direction, and calculates the average speed of the linear movement. Calculated as the most recent movement speed. The movement destination prediction unit F12 predicts that the child will make a uniform linear motion at a movement speed calculated in the acquired movement direction.

  In step S407, the presentation unit F15 calculates an encounter prediction area that is a candidate for a meeting place between the guardian and the child. In step S407, the predicted movement area of the child and the range that can be reached by the guardian are predicted, and the predicted encounter area is calculated. Details of this calculation process will be described later.

  In step S <b> 408, the presentation unit F <b> 15 generates display data such as a movement prediction area and an encounter prediction area and transmits the display data to the guardian terminal 5. On the other hand, when the guardian terminal 5 receives the display data, the guard terminal 5 displays a joining support screen as shown in FIG. 9A on the display unit 57 based on the display data. The display data may be image data representing the merging support screen, or may be data indicating each element necessary for drawing. The display data includes data representing a map, a movement prediction area, a child's current area, and a guardian's current area. The movement prediction area is the one predicted in step S403, S405, or S407. When step S408 is reached via step S407, the display data includes an encounter prediction area and data representing a route from the guardian's current area to the encounter prediction area.

  In the present embodiment, the presentation unit F15 transmits display data, but the presentation unit F15 may transmit audio output data. In this case, when receiving the voice output data, the guardian terminal 5 may output, from the speaker, a word representing the position of the encounter prediction area and a mark in the vicinity thereof, a voice guide for reaching the place, and the like.

  FIG. 14 is a flowchart illustrating the flow of the encounter prediction area calculation process. The flow of this process shows the details of the process of step S407 in FIG. In this process, the predicted encounter area is specified after predicting the child's predicted movement area and the reachable range of the guardian at each predicted time in order of time.

  In step S501, the meeting place specific | specification part F14 advances prediction time. The predicted time takes the time when the encounter prediction area calculation process is started as an initial value, and is advanced by a predetermined time (for example, 1 second) when step S501 is executed.

  In step S502, the movement destination prediction unit F12 calculates the movement prediction area of the child at the predicted time. Specifically, the movement destination prediction unit F12 uses, as the movement prediction area, the movement destination when the child performs a uniform linear motion with the movement direction and movement speed acquired in step S406 of FIG. 13 from the current area of the child. calculate.

  In step S503, the reach range prediction unit F13 calculates a reach range in which the guardian reaches the predicted time. Specifically, the reach range prediction unit F13 calculates, as the reach range, a set of places that can be reached when the guardian moves at the assumed moving speed from the current area. The assumed moving speed is obtained in step S303 in FIG. 12, and is a value calculated from the position history information of the guardian, for example.

  In steps S502 and S503, the destination prediction unit F12 and the reach range prediction unit F13 refer to the position information of the obstacle that prevents the passage of the facility F from moving, and the child and the guardian move only on the passage. On the assumption of this, the movement prediction area or the reach may be predicted.

In step S504, the merging place specifying unit F14 determines whether or not the child movement prediction area calculated in step S502 and the guardian's reach calculated in step S503 overlap. When it is determined that the predicted movement area of the child and the reach of the guardian overlap (S
504; Yes), the process proceeds to step S505. If it is not determined that the predicted movement area of the child overlaps the reach of the guardian (S504; No), the process returns to step S501, and the process for the next predicted time is executed in steps S501 to S504. become.

  In step S505, the meeting place specific | specification part F14 specifies the place where the child's movement prediction area determined in step S504 and the reach | attainment range of a guardian overlap as an encounter prediction area in prediction time.

<Summary>
In the present embodiment described above, when the guardian operates the guardian terminal 5 to make an information acquisition request regarding the child, the join support screen for supporting the join with the lost child is displayed. The joining support screen in a predetermined case includes a display of an encounter prediction area based on a child movement prediction area and a guardian's reach. Therefore, even when the child continues to move, it is highly possible that the guardian can quickly join the child only by going to the displayed encounter prediction area. Therefore, useless time for joining and occurrence of movement are suppressed, and a guardian can join a lost child more efficiently.

  In addition, the merge support screen of this embodiment includes a display of a child movement prediction area together with an encounter prediction area. Therefore, since the guardian can grasp in advance the prediction of how the child is moving in the vicinity of the encounter prediction area, it is possible to find the child more easily in the vicinity of the encounter prediction area.

<< Modification 1 >>
In the first embodiment, the “information processing apparatus” is implemented as the server 1. On the other hand, Modification 1 in which the “information processing apparatus” is implemented as the guardian terminal 5 (hereinafter also referred to as “this modification”) will be described with a focus on differences from Embodiment 1. Note that the hardware configuration of each device of the present modification is the same as that of the first embodiment.

  FIG. 15 is a diagram illustrating a functional configuration of the server 1 and the guardian terminal 5 in the present modification. The server 1 functions as a computer including the location management database D11. The guardian terminal 5 is a computer including a position history acquisition unit F11, a movement destination prediction unit F12, a reach range prediction unit F13, a meeting place identification unit F14, and a presentation unit F15 by executing a dedicated application by the CPU 51. Function.

  The position history acquisition unit F11 of the guardian terminal 5 designates the terminal ID assigned to the guardian terminal 5 itself and transmits a request to the server 1 to operate the guardian terminal and the guardian terminal. Position history information indicating the position history of the child corresponding to 5 is acquired from the server 1. On the other hand, the server 1 acquires location history information from the location management database D11 and transmits the location history information to the guardian terminal 5.

  The presentation unit F15 of the guardian terminal 5 receives the operation of the information acquisition request regarding the child from the guardian (an example of “when the presentation condition regarding the user is satisfied”), and the child associated with the guardian terminal 5 Information about the position is displayed on the display unit 57. Specifically, the presentation unit F15 displays a merge support screen. The displayed contents are the same as in the first embodiment.

  The flow of processing related to the collection of position history described with reference to FIGS. 10 and 11 is the same as that in the first embodiment.

The flow of processing related to the presentation of child information described with reference to FIG.
It is executed in the guardian terminal 5. Further, in steps S301, S305, and S308, which are based on the assumption that the server 1 and the guardian terminal 5 transmit and receive data in the first embodiment, alternative processing is executed. In step S301 of this modification, instead of determining whether or not the presentation unit F15 has received an information acquisition request regarding a child, it is determined whether or not an operation for an information acquisition request regarding a child has been received from a guardian who is a user. To do. In steps S305 and S308 of this modification, the presentation unit F15 displays a joining support screen on the display unit 57 instead of transmitting various information to the guardian terminal 5.

  Similarly, the process flow related to area prediction described with reference to FIGS. 13 and 14 is executed not on the server 1 but on the guardian terminal 5. Further, in step S408 of FIG. 13, the presentation unit F15 displays a joining support screen on the display unit 57 instead of transmitting various types of information to the guardian terminal 5.

  In the present modification described above, since the joining support screen is displayed on the guardian terminal 5 as in the first embodiment, the guardian can join the lost child efficiently. Furthermore, since the main processing is executed in the guardian terminal 5, the processing load on the server 1 can be further reduced.

<< Modification 2 >>
In the first embodiment, when the server 1 receives an information acquisition request regarding a child from the guardian terminal 5, the merge support screen is provided. For this reason, it was possible to provide information on appropriate support for confluence to parents who requested confluence with their children at the timing of their request. On the other hand, when the server 1 detects that the distance between the guardian and the child is equal to or greater than a predetermined value (an example of “when the presentation condition related to the user is satisfied”), the merging support screen is provided. Example 2 will be described with a focus on differences from the first embodiment. Note that the hardware configuration of each device of Modification 2 is the same as that of the first embodiment.

  The presentation unit F15 of the server 1 according to the second modified example monitors the distance between the guardian and the child to be protected by the guardian, and detects that the distance is equal to or greater than a predetermined value. Specifically, the presentation unit F15 extracts the pair of the guardian and the child with reference to the outgoing beacon management master of the position management database D11, and the latest position history of the extracted parent and the child Information is acquired by the position history acquisition unit F11. Next, the server 1 determines whether or not the distance between the current area of the guardian and the current area of the child indicated by the acquired latest position history information is greater than or equal to a predetermined value. The presenting unit F15 repeats the acquisition of such position history information and the determination on the distance for every pair of parents and children at a predetermined cycle such as 1 second.

  Here, when it is determined that the distance between the current area of the guardian and the current area of the child is greater than or equal to a predetermined value, the flow of the child information presentation process similar to steps S303 to S310 in FIG. The flow of processing related to area prediction described with reference to FIGS. 13 and 14 is executed. In steps S305 and S308 in FIG. 12 and step S408 in FIG. 13, the presentation unit F15 transmits various types of information to the guardian terminal 5, but the transmission destination in the modified example 2 is a predetermined distance or more from the child. It is the guardian terminal 5 carried by the guardian determined to be. This transmission is realized by a push notification technique for transferring data to an application program such as a smartphone such as APNS (Apple Push Notification Service). On the other hand, in the guardian's terminal 5 that has received various information, a dedicated application is activated, and for example, a voice output for alerting or a message that the child may have been separated from the guardian is joined together. Display the support screen. The displayed merging support screen includes, for example, a display of an encounter prediction area.

In the modified example 2 described above, when it is detected that the distance between the guardian and the child is greater than or equal to a predetermined distance, the join support screen is displayed on the guardian terminal 5 carried by the guardian. Therefore, even when the parents are unaware that they have lost their children, they can recognize early that they have lost their children and obtain information to help them join the children. Can do. Therefore, the guardian can join the child earlier.

<< Embodiment 2 >>
In the first embodiment, the child carries the transmission-only beacon 4 serving as a position mark, and the guardian does not carry the transmission-only beacon 4. In the second embodiment, a guardian also carries a call-only beacon 4, and the position information of the guardian is collected based on reception of a communication radio wave emitted from the carried call-only beacon 4 by a hub beacon. Such a second embodiment will be described with a focus on differences from the first embodiment. In the second embodiment, the “information processing apparatus” is implemented as the server 1 as in the first embodiment.

<Configuration of information processing system>
FIG. 16 is a diagram illustrating an information processing system according to the second embodiment. In FIG. 16, unlike FIG. 1, two types of beacon 4 exclusively for outgoing calls, that is, a beacon 4 A for outgoing children carried by a child, and a beacon 4 B for outgoing parents dedicated to a guardian are shown. Yes.

  Unlike the first embodiment, the reader hub beacon 2 and the sub-hub beacon 3 according to the second embodiment exclusively receive the BLE communication radio wave emitted from the guardian terminal 5 without emitting the BLE communication radio wave.

Unlike the first embodiment, the guardian terminal 5 according to the second embodiment may not include the BLE communication module 59.
<Functional configuration>
The master table for outgoing beacon management in the location management database D11 of the second embodiment is used for managing not only children but also outgoing beacon 4 carried by a guardian. For this reason, the outgoing beacon management master further includes a column that represents the type of whether the person carrying the child is a child or a guardian. The position history acquisition unit F11 refers to the column and distinguishes whether the information is a child or a guardian, and acquires position history information.

<Process flow>
(Collect location history)
The flow of location history information collection processing using the transmission-only beacon 4 in the second embodiment is the same as that of the first embodiment described with reference to FIG. In the second embodiment, not only the position history information of the child but also the position history information of the guardian is collected in the same processing flow. Also, in the second embodiment, unlike the first embodiment, the collection process of location history information using the guardian terminal 5 shown in FIG. 11 is not executed. Further, the flow of the child information presentation process (FIG. 12) and the area prediction process flow (FIGS. 13 and 14) in the second embodiment are the same as those in the first embodiment.

<Summary>
In the second embodiment described above, since the join support screen is displayed on the guardian terminal 5 as in the first embodiment, the guardian can efficiently join the lost child. Furthermore, in the second embodiment, an information processing system can be constructed by using a guardian terminal 5 that does not have a BLE communication function. Therefore, even a guardian who does not own a portable information terminal or the like equipped with a BLE communication function can receive support for searching for lost children using a familiar personal information terminal or the like.

≪Others≫
In the embodiment described above, the positions of the child and the guardian are measured by the BLE communication using the hub beacon. For this reason, an information processing system could be constructed using the small beacon 4 dedicated to transmission with low power consumption. The location of children and guardians is GPS (Global
Positioning system (Positioning System) and other satellite positioning systems, positioning systems using mobile phone networks and wireless LAN base stations, positioning systems using ZigBee (registered trademark), positioning systems using non-audible sound, and other positioning technologies May be.

  In the embodiment described above, the information regarding the position of the child who is lost is provided to the guardian terminal 5 operated by the guardian. The information regarding the position is the information terminal operated by the staff of the facility F. May also be provided. In this case, the current area of the staff may be acquired, and display data of the predicted area of encounter between the staff and the lost child may be provided to the staff information terminal.

<Computer-readable recording medium>
A program that causes a computer or other machine or device (hereinafter also referred to as “computer or the like”) to realize any function can be recorded on a computer-readable recording medium. The function can be provided by causing a computer or the like to read and execute the program of the recording medium. Here, the computer-readable recording medium refers to a recording medium in which data, programs, and the like are stored by electrical, magnetic, optical, mechanical, or chemical action and can be read from the computer or the like. . Examples of such a recording medium that can be removed from a computer or the like include a flexible disk, a magneto-optical disk, a CD-ROM, a CD-R / W, a DVD, a Blu-ray disk, a DAT, an 8 mm tape, a flash memory, and the like. There are cards. Further, there are a hard disk, SSD, ROM and the like as a recording medium fixed to a computer or the like.

1 server (information processing equipment, computer)
2 Leader hub beacon 3 Sub hub beacon 4, 4A, 4B Call-only beacon 5 Parent terminal (information processing device, computer)
F Facility N Internet D11 Location management database

Claims (13)

Position history acquisition means for acquiring position history information indicating a history of the position of the moving body;
Based on the acquired position history information, a destination prediction unit that predicts a destination according to the time of the moving body;
When a presentation condition related to a user is satisfied, a range that the user reaches over time is predicted from the position of the user, and the range that the predicted user reaches over time and the predicted moving body Presenting means for presenting a candidate for a meeting place between the user and the moving body based on a destination according to the passage of time;
An information processing apparatus comprising: The presenting means specifies and presents the candidate for the joining location from among the locations where the predicted range that the predicted user reaches over time and the destination of the predicted moving body according to the time overlap. ,
The information processing apparatus according to claim 1. The presenting means identifies a place that overlaps at the earliest prediction time among the overlapping places as a candidate for the joining place,
The information processing apparatus according to claim 2. The presenting means includes a map including the position of the candidate for the meeting place, a symbol indicating the candidate for the meeting place on the map, and a figure indicating the predicted destination of the moving body on the map. Generate display data for display including
The information processing apparatus according to any one of claims 1 to 3. The presenting means presents the candidate for the meeting place when the presentation request requested by the user is received as the presentation condition is satisfied,
The information processing apparatus according to any one of claims 1 to 4. When the distance between the user's position and the latest position of the moving body indicated by the position history information is within a predetermined range, the presenting means does not present the candidate for the meeting place, and the acquired position history information Presents the latest position of the moving object indicated by
The information processing apparatus according to any one of claims 1 to 5. The movement destination prediction means, when the position represented by the positioning resolution of the moving body indicated by each of the position history information from a predetermined time before to the present matches, the matching position of the moving body Predict as a destination,
The information processing apparatus according to any one of claims 1 to 6. The destination prediction means, when any of the positions indicated by the position history information from before a predetermined time to the present is within a predetermined distance from the latest position of the moving body, the range of the predetermined distance As the destination of the moving object,
The information processing apparatus according to any one of claims 1 to 7. The destination prediction means estimates the direction and speed of the current movement of the mobile body from the acquired position history information, and predicts the destination when moving in the direction at the estimated speed. ,
The information processing apparatus according to any one of claims 1 to 8. When the distance between the position of the user and the latest position of the moving object indicated by the position history information is within a predetermined range, the presenting means does not present the candidate for the meeting place, and the latest position of the moving object Repeating the acquisition of history information and presenting the latest position of the moving object indicated by the acquired position history information;
The information processing apparatus according to any one of claims 1 to 9. A transmitter that emits radio waves,
A plurality of radio receivers placed at different positions in the area;
An information processing apparatus capable of communicating with the wireless receiver;
An information processing system having
The information processing apparatus includes:
Position history acquisition means for acquiring position history information indicating a history of the position of the moving body;
Based on the acquired position history information, a destination prediction unit that predicts a destination according to the time of the moving body;
When a presentation condition related to a user is satisfied, a range that the user reaches over time is predicted from the position of the user, and the range that the predicted user reaches over time and the predicted moving body Presenting means for presenting a candidate for a meeting place between the user and the moving body based on a destination according to the passage of time;
With
The transmitter is carried by the mobile body,
Each of the plurality of wireless receivers generates reception information including the reception time and transmits the reception information to the information processing device when receiving radio waves from the transmitter.
The position history acquisition unit of the information processing apparatus acquires information including a reception time included in the reception information and a position of a wireless receiver that is a transmission source of the reception information as position history information of the mobile body.
Information processing system. Computer
A position history acquisition step for acquiring position history information indicating a history of the position of the moving object;
Based on the acquired position history information, a destination prediction step for predicting a destination according to the time of the moving body;
When a presentation condition related to a user is satisfied, a range that the user reaches over time is predicted from the position of the user, and the range that the predicted user reaches over time and the predicted moving body A presenting step of presenting a candidate for a meeting place between the user and the moving body based on a destination according to the passage of time;
Information processing method to execute. On the computer,
A position history acquisition step for acquiring position history information indicating a history of the position of the moving object;
Based on the acquired position history information, a destination prediction step for predicting a destination according to the time of the moving body;
When a presentation condition related to a user is satisfied, a range that the user reaches over time is predicted from the position of the user, and the range that the predicted user reaches over time and the predicted moving body A presenting step of presenting a candidate for a meeting place between the user and the moving body based on a destination according to the passage of time;
A program for running

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