JP6427386B2 - Communication system, portable terminal and position management method - Google Patents

Description

  The present invention relates to a communication system that manages the position of a slave terminal, a portable terminal, and a position management method.

  In recent years, with the declining birth rate, interest in watching over children has increased, and devices equipped with a function to prevent children from watching for children and watching over are considered. For example, various forms are considered, such as notifying of the current position using GPS communication, and emitting an alarm when there is a certain distance or more between the dedicated master and slave pairs.

  In addition, in a closed space such as an amusement park or a theme park, a position detection system using a fixed network (Japanese Patent Application Laid-Open No. 2003-116166) is considered. Patent Document 1 describes that the position of a slave unit detected in a master unit is notified.

Japanese Patent Application Publication No. 2003-116166

  In the prior art, with regard to the ones that sound an alarm when there is a certain distance or more between the dedicated master and slave pair, although the alarm is notified when the slave is separated, the position can not be specified. Also, it is difficult to show the effect on taking away. In addition, the technology described in Patent Document 1 needs to be configured in advance in a grid pattern on the parent device, and it is difficult to apply it to a general mobile communication network.

  Therefore, in the present invention, it is an object of the present invention to provide a communication system capable of managing the position of a slave, a portable terminal and a position management method, which can be applied to a portable terminal connected to a mobile communication network. Do.

In order to solve the above-described problems, in the communication system of the present invention, a request source terminal that makes a search request for a slave terminal and a plurality of request destination terminals that receive the search request from the request source terminal are connected by wireless communication. In the communication system, the request source terminal sends, to the user, search request means for making a search request to the request destination terminal, and the position information acquired from the request destination terminal as a response to the search request by the search request means. Each of the notification means to notify and the request destination terminal acquires position information acquisition means for acquiring position information of the request destination terminal, and periodically acquires information for specifying a slave terminal by near field communication. Search unit received from the request source terminal, search request and information for specifying a search target and a slave terminal to be searched, and the search unit received by the reception unit Information for identifying the slave terminal is a request of interest, whether to match the information for identifying the slave terminal acquired by the slave device information acquisition unit, and the search request urgency If it is judged that the child machine judging means for judging whether it is the required one and the information for specifying the child machine terminal match by the child machine judging means, the child machine terminal by the child machine information acquiring means is At the time of acquiring information for specifying, the position information acquired by the position information acquiring means is transmitted to the request source terminal, and the child machine judging means judges that the information for specifying the child machine terminal matches, Further, if it is determined that the search request requires urgency, the position information acquired by the position information acquiring means at the time of acquiring information for specifying the child machine terminal by the child machine information acquiring means It transmits to the source terminal, comprising the slave device terminal, transmitting means acquires the contact information of the child machine terminal.

A position management method according to the present invention is a communication method of a communication system in which a request source terminal for requesting a search for a slave terminal and a plurality of request destination terminals for receiving a search request from the request source terminal are connected by wireless communication. A search request step of making a search request to the request destination terminal at the request source terminal; and a notification step of notifying a user of position information acquired from the request destination terminal as a response to the search request by the search request step. Is executed, and in each of the request destination terminals, a position information acquisition step of acquiring position information of the request destination terminal, and a child periodically acquiring information for specifying a slave terminal by near field communication. A machine information acquisition step, a receiving step of receiving a search request and information for specifying a slave terminal to be searched from the request source terminal; Information for identifying the slave terminal that is the subject of the received search request by the receiving step, whether to match the information for identifying the slave terminal acquired by the slave device information acquisition step, and The slave unit information step determines whether or not the search request requires urgency, and the slave unit information determines that the information for specifying the slave terminal matches in the slave unit determination step. The position information acquired in the position information acquiring step is transmitted to the request source terminal at the time of acquiring information for specifying the child machine terminal in the acquiring step, and the child machine terminal is specified in the child machine judging step. If it is determined that the information matches, and if it is determined that the search request requires urgency, the acquisition of information for specifying the child device terminal by the child device information acquisition step is performed. It sends the positional information acquired by the positional information acquiring step to the requesting terminal during, the slave device terminal, a transmitting step of performing acquisition of contact information of the child device terminal, is performed.

According to this configuration, in the request destination terminal, the position information is acquired, and the information for identifying the slave terminal that is the target of the search request identifies the slave terminal acquired by the short distance wireless communication. It is determined whether or not the information matches the information for determining, and if it is determined that the information matches, the position information acquired at the time of acquiring the information for identifying the slave terminal is transmitted to the request source terminal. As a result, even if the position of the request destination terminal is not fixed in advance, it is possible to notify the request source terminal of the position information of the request destination terminal at the time of finding the slave terminal. Therefore, it is not necessary to construct a network or the like for searching for a slave terminal, and the present invention can be easily applied to a mobile terminal such as a mobile terminal. In addition, in the event of an emergency, in addition to the above, it is possible to acquire the contact point information of the child device terminal from the child device terminal.

  Further, in the communication system according to the present invention, in the request source terminal, the search request means sends a search request to a request destination terminal belonging to the same group as the request source terminal, as a slave device to be searched. The search target information indicating the terminal is transmitted, and in each of the request destination terminals, the slave determination unit performs a determination process based on the slave terminal indicated by the search target information.

  According to the present invention, the search target information is transmitted together with the search request to the request destination terminal belonging to the same group as the request source terminal, and a slave unit indicated by the search target information in each of the request destination terminals A determination process is performed based on information for identifying a terminal. This makes it possible to request a search for a slave unit to the request destination terminals in the same group.

  Further, in the communication system according to the present invention, in each of the request destination terminals, when it is determined that the information specifying the child device terminal matches by the child device judging means, a predetermined operation is further performed on the child device terminal And execution control means for performing control to execute.

  According to the present invention, when it is determined that the information specifying the slave terminal matches, control is further performed to execute a predetermined operation on the slave terminal. As a result, not only the notification of the position information but also the slave terminal can be made to perform a predetermined operation, and a more appropriate response can be made.

  Further, in the communication system according to the present invention, the request destination terminal acquires the position information acquired by the position information acquiring unit and information for specifying the slave unit acquired by the slave unit information acquiring unit. Storing means for storing in association with time information indicating the time when the child device is determined, the child device determining means stores information for specifying a child device terminal which is a target terminal of the search request in the storage device If it is determined that the data is stored in the storage unit, the transmission unit is associated with the information for specifying the child device terminal stored in the storage unit. The position information and the time information are transmitted to the request source terminal.

  According to this invention, the information for specifying the acquired child machine terminal is stored in association with the position information acquired at a predetermined timing and the time information indicating the acquired time, and the search is performed. It is determined whether the information for specifying the child machine terminal which is the target terminal of the request is stored in the storage means, and if it is determined that the information is stored in the storage means, the information is stored in the storage means The position information and the time information associated with the information for specifying the slave terminal being sent are transmitted to the request source terminal. Thereby, the position information in the past and its time information can be notified to the request source terminal using the information for specifying the child device terminal acquired in the past. Therefore, even if a slave terminal to be searched is not in the vicinity of which request destination terminal at the time of search request, it is possible to grasp in the past which request destination terminal was in the vicinity and its position.

  Further, in the communication system according to the present invention further comprising a server that manages the request source terminal and the request destination terminal, the server receives the search request from the request source terminal, and the server receives the search request. It further comprises search processing means for issuing a search instruction.

  According to the present invention, a search request from the request source terminal can be requested to the request destination terminal using the server that links the request source terminal and the request destination terminal.

  Further, in the communication system of the present invention, the server further comprises group information storage means for storing group information indicating a group configuration of the request source terminal and the request destination terminal, and the search processing means comprises the group information storage means. A search instruction is issued to the request destination terminal based on the stored group information.

  According to the present invention, group information indicating the group configuration of the request source terminal and the request destination terminal is stored, and a search instruction is issued to the request destination terminal based on the group information. This makes it possible to easily give a search instruction in group units.

Further, in the portable terminal of the present invention, position information acquisition means for acquiring position information of the request destination terminal, and child machine information acquisition means for periodically acquiring information for specifying a child machine terminal by near field communication. And receiving means for receiving a search request and information for specifying a slave terminal to be searched from the request source terminal, and for specifying a slave terminal for which the search request is received by the receiving means. The slave device determines whether or not the above information matches the information for specifying the slave terminal acquired by the slave device information acquisition means , and whether or not the search request requires urgency. When it is judged that the judgment means and the information for specifying the child machine terminal match by the child machine judgment means, the position information at the time of acquisition of the information for specifying the child machine terminal by the child machine information acquisition means Acquisition hand The position information obtained is transmitted to the requesting terminal by, it is determined that the information for identifying the slave terminal matches the child machine determining means, when it is determined that a further search request requiring urgent And transmitting the position information acquired by the position information acquiring means to the request source terminal at the time of acquiring information for specifying the child machine terminal by the child machine information acquiring means, and the child machine terminal from the child machine And transmission means for acquiring contact information of the mobile terminal .

According to this configuration, the position information is acquired, and the information for specifying the slave terminal that is the target of the search request matches the information for specifying the slave terminal acquired by the short distance wireless communication. If it is determined that the information matches, the position information acquired at the time of acquiring the information for specifying the slave terminal is transmitted to the request source terminal. As a result, even if the position of the request destination terminal is not fixed in advance, it is possible to notify the request source terminal of the position information of the request destination terminal at the time of finding the slave terminal. Therefore, it is not necessary to construct a network or the like for searching for a slave terminal, and the present invention can be easily applied to a mobile terminal such as a mobile terminal. In addition, in the event of an emergency, in addition to the above, it is possible to acquire the contact point information of the child device terminal from the child device terminal.

  According to the present invention, there is no need to construct a network or the like for searching for a slave terminal, and the present invention can be easily applied to a mobile terminal such as a mobile terminal.

It is a system diagram showing the system configuration of the communication system of this embodiment. It is a block diagram showing functional composition of personal digital assistant 100 of this embodiment. FIG. 2 is a hardware configuration diagram of a mobile terminal 100. FIG. 8 is an explanatory view showing a specific example of a management table 108. FIG. 2 is a block diagram showing a functional configuration of a server 200. 5 is an explanatory diagram of group information stored in a management table 203. FIG. 5 is a flowchart showing a series of operations from power-on to a terminal ID scan process in the portable terminal 100. 5 is a flowchart showing processes of processes A to C. FIG. It is a flowchart which shows a process of the portable terminal 100 which functions as a request destination which received the search request | requirement from another portable terminal. It is a flowchart which shows a process of the portable terminal 100 which functions as a request destination which received the urgent search request | requirement from another portable terminal. FIG. 16 is a flowchart showing processing of the mobile terminal 100 that makes a search request to another mobile terminal via the server 200. FIG. FIG. 16 is a flowchart showing processing of the mobile terminal 100 that makes an emergency search request to another mobile terminal via the server 200. FIG. It is a flowchart which shows a process of the server 200 which received the search request. It is a flow chart which shows processing of server 200 which received urgent search demand. 5 is a flowchart showing processing of the child device terminal 150. FIG. 7 is a sequence diagram showing processing when the mobile terminal 100 is powered on. It is a processing sequence diagram when making a search request by user operation. It is a sequence diagram showing urgent search processing. FIG. 6 is an explanatory view showing a state where a parent device A which is the portable terminal 100 and a child device a which is the child device terminal 150 are at home. It is an explanatory view showing that parent device A is located at home, and that child device a is located at a park. It is an explanatory view showing that base unit A is located at home and handset a is away from a park. It is an explanatory view showing that base unit A is located at home and handset a is in the scan range of base unit F. It is explanatory drawing which shows the state when the subunit | mobile_unit a has come out of the group range. It is an example of a display screen of the portable terminal 100 which showed displaying a movement path | route and a movement means. It is a flowchart which shows the specific process of process S317. FIG. 7 is a diagram showing position information and time information of a slave terminal transmitted from a server 200. It is an example of a display of the map displayed on the display part 102, and a movement path | route.

  Embodiments of the invention will be described with reference to the accompanying drawings. Where possible, the same parts will be denoted by the same reference symbols, without redundant description.

  FIG. 1 is a system diagram showing a system configuration of the communication system of the present embodiment. As shown in FIG. 1, this communication system includes a plurality of portable terminals 100, a slave terminal 150 connected to the portable terminals 100, and a server 200 capable of communicating with the portable terminals 100. . Here, each mobile terminal 100 is described as a parent device A to a parent device K. Further, each child device terminal 150 is described as child device a to child device k in association with each of the parent device A to the parent device K. Although the portable terminal 100 functioning as a parent device is assumed to be held by the parent and the child device terminal 150 is assumed to be held by the child, the child device terminal 150 is limited to being held by the child. For example, an elderly person, a disabled person, or a pet such as a dog may be held.

  In FIG. 1, parent device A to parent device F and child devices a to f are further associated as group G1. Also, similarly, the parent device G to the parent device K and the child device g to the child device i are associated as a group G2. This group is configured, for example, by associating users in the same town with each other, and the server 200 manages grouping of the portable terminals 100.

  Here, the mobile terminals 100 (masters A to K) are, for example, mobile phones and smart phones, and mutually enable communication using a mobile communication network such as a 3G network or an LTE network. Further, the child device terminal 150 (child devices a to k) is a communication terminal capable of performing near field communication. The portable terminal 100 can be wirelessly connected to the slave terminal 150 by near field communication. For example, the portable terminal 100 can communicate with the slave terminal 150 by Bluetooth.

  The portable terminal 100 may be effective as a short distance wireless communication method in a range of several meters to several tens of meters, and may be capable of communicating using a unique ID as a key. -Fi communication can be considered. In the case of Wi-Fi communication, an SSID or a device MAC address can be used as a key, and in the case of Bluetooth communication, a device MAC address can be used as a key.

  Further, the portable terminal 100 is not limited to the telephone type, and in order to function as a parent device, communication by both public communication networks such as a mobile communication network and short distance wireless communication is used. Anything that can be performed is acceptable. In the case of Wi-Fi communication, if you can connect to a public Wi-Fi communication network, PC (PC: equipped with a Wi-Fi communication module or Bluetooth communication module), home Wi-Fi router , IBeacon parent machine etc. can be. In addition, as a handset, any device capable of functioning as a so-called Bluetooth handset may be used, and as its form, an earphone type, a security buzzer type, an iBeacon type, a card type, a key ring type, a sensor type, a music player type, and a so-called Wearable terminal type (watch, glasses, shoes, etc.) can be considered.

  When one of the mobile terminals 100 makes a search request for the associated child device terminal 150, the mobile terminal 100 makes a search request to the other mobile terminal 100 via the server 200, and the other mobile terminal 100 makes a search request. Can perform a search process of the slave terminal 150 in response to the search request. For example, when the parent machine A makes a search request as a request source terminal for making a search request, the search request is first transmitted to the server 200, and when the server 200 receives this search request, it is associated with the parent machine A A search request is transmitted to the other parent machines B to F in the same group so as to search for the child machine a. In this case, the parent device A functions as a request source terminal, and the other parent devices B to F function as request destination terminals.

  Here, although the search request is issued to the other mobile terminals 100 in the same group, the search request may be issued to the mobile terminals 100 belonging to the other group across the groups.

  In the present embodiment, the server 200 receives the search request and transmits the search request to the other portable terminal 100. However, the server 200 is not necessarily required, and the portable terminal 100 (for example, the parent device A) Alternatively, the search request may be transmitted to the other portable terminal 100 (masters B to F) without passing through a server or the like. In that case, it is necessary to mutually exchange own terminal information between mobile terminals of the same group and to construct group information.

  Next, the functional configuration of the mobile terminal 100 will be described. FIG. 2 is a block diagram showing a functional configuration of the mobile terminal 100 of the present embodiment. As shown in FIG. 2, the portable terminal 100 has a function as a request source terminal and a portion functioning as a request destination terminal, and as a function of the request source terminal, a search instruction unit 101 (search request means), a display unit 102 (notice Means) and the communication unit 103, and as the function of the request destination terminal, the communication unit 103 (reception means, transmission means), control unit 104 (child machine determination means), processing execution unit 105 (execution control means), short distance A wireless communication unit 106 (child device information acquisition unit), a GPS positioning unit 107 (position information acquisition unit), and a management table 108 (storage unit) are included.

  FIG. 3 is a hardware configuration diagram of the portable terminal 100. As shown in FIG. Physically, as shown in FIG. 3, the portable terminal 100 shown in FIG. 2 includes one or more CPUs 11, RAM 12 and ROM 13 as main storage devices, and input devices 14 such as a keyboard and a mouse as input devices, The computer system is configured as a computer system including an output device 15 such as a display, a communication module 16 which is a data transmission / reception device such as a network card, and an auxiliary storage device 17 such as a semiconductor memory. Each function in FIG. 2 operates the input device 14, the output device 15, and the communication module 16 under the control of the CPU 11 by reading predetermined computer software on hardware such as the CPU 11 and the RAM 12 shown in FIG. This is realized by performing reading and writing of data in the RAM 12 and the auxiliary storage device 17 as well. Hereinafter, each functional block is demonstrated based on the functional block shown in FIG.

  The search instruction unit 101 is a part that instructs the communication unit 103 to transmit a search request to the server 200 in accordance with the operation of the user of the portable terminal 100. When a search request is made, search instruction unit 101 transmits search target information for specifying slave terminal 150 that is the search target. The search target information includes a MAC address which is information for specifying the child device terminal 150. The information for identifying the slave terminal 150 is not limited to the MAC address, but may be a terminal ID assigned to the slave terminal 150.

  Further, depending on the degree of urgency, the search instruction unit 101 is configured to further transmit urgent search target information including an urgent search and the search target and the passkey. When the portable terminal 100 functioning as the request destination receives the emergency search target information and discovers the slave terminal 150 to be searched, it notifies the slave terminal 150 of the position information of the own terminal at that time. On the other hand, it is possible to operate the handset terminal 150 by direct access using the passkey by near field communication.

  Further, the search instruction unit 101 may determine whether or not to make a search request based on the mode information stored in the management table 108 (own terminal information table 108 a). For example, when mode I indicating that pairing is in progress is stored, even if a search request is received from the user, the display unit is displayed so as to indicate that pairing is in progress without accepting the search request. It may be displayed on 102.

  The display unit 102 is a part that displays position information and time information transmitted from another portable terminal 100 that functions as a request destination terminal, as the position of the child device terminal 150 that is the search target and the time. In addition, the display unit 102 displays information transmitted from another portable terminal 100 functioning as a request destination terminal, for example, an operation result on the slave terminal 150 or the like.

  The communication unit 103 is a part that communicates with the server 200 and other portable terminals 100 via the mobile communication network, and when the portable terminal 100 functions as a request source terminal, a search request and its search target information are It transmits to the server 200. When the mobile terminal 100 functions as a request source terminal, it receives position information indicating the position of the slave terminal 150 transmitted from another mobile terminal 100 and time information of the measured position.

  In addition, when the portable terminal 100 functions as a request destination terminal, the communication unit 103 receives a search request, group information, urgent search target information, and the like from the server 200, and the short distance wireless communication unit 106 The position information at the time of finding the mobile terminal 150 and the time information at which the position was measured are transmitted.

  The control unit 104 determines whether the MAC address of the child device terminal 150 acquired by the short distance wireless communication unit 106 matches the MAC address of the child device terminal 150 as the search target specified in the search request. It is a part. Here, the control unit 104 stores, in the group information table 108b, group information in which a search flag is added to the search target, received by the communication unit 103, and makes a determination based on the group information table 108b.

  When the control unit 104 determines that the MAC addresses match, the control unit 104 acquires the position information acquired by the GPS positioning unit 107 and the time information thereof, and another mobile phone that functions as a request source terminal through the communication unit 103. It transmits to the terminal 100. In addition, the acquisition timing of the positional information by the GPS positioning part 107 shall be various as it mentions later.

  In addition, the control unit 104 determines whether the MAC address of the slave terminal 150 acquired by the short distance wireless communication unit 106 matches the MAC address of the slave terminal 150 for the search target specified in the urgent search request. to decide. Here, the control unit 104 stores the emergency search target information indicating the emergency search target, received by the communication unit 103, in the emergency information table 108c, and makes a determination based on the emergency information table 108c.

  When the control unit 104 determines that the MAC addresses match, the control unit 104 acquires the position information acquired by the GPS positioning unit 107 and the time information thereof, and another mobile phone that functions as a request source terminal through the communication unit 103. It transmits to the terminal 100.

  Note that when the control unit 104 receives the search request or the emergency search request and determines that they match, the position information stored in the history table 108d (within a predetermined time, for example, within 5 minutes) immediately after that and the determination The time information indicating the positioning time may be transmitted via the communication unit 103 to another portable terminal 100 that functions as a request source terminal.

  When the control unit 104 determines that the MAC address of the slave terminal 150 as the urgent search target matches the processing execution unit 105, the processing execution unit 105 is a portion that directly performs operation processing on the slave terminal 150. Prior to the operation processing, the process execution unit 105 acquires, from the server 200, a passkey for operating the slave terminal 150. Then, the slave terminal 150 is operated via the short distance wireless communication unit 106 using the passkey. For example, acquisition of a message from the child device terminal 150 and acquisition of the telephone number of the portable terminal 100 as a parent device are performed.

  The history management unit 105 a instructs the GPS positioning unit 107 to perform position measurement at timing when the short-distance wireless communication unit 106 acquires the MAC address of the slave terminal or at predetermined timings. Then, the history management unit 105a stores the terminal ID and MAC address acquired by the short distance wireless communication unit 106, the position information at that time, and the acquired time information in association with the history table 108d of the management table 108. Let

  The short distance wireless communication unit 106 wirelessly communicates with the slave terminal 150 by short distance wireless communication, and can communicate by Bluetooth, for example. The near field communication unit 106 acquires the terminal ID and the MAC address of the child device terminal 150 when the child device terminal 150 is in the area. Then, by performing the pairing process using the terminal ID, the MAC address, and a predetermined passkey, communication with the slave terminal 150 can be performed.

  The GPS positioning unit 107 is a portion that performs positioning using GPS at a predetermined timing. In addition to the predetermined timing, when there is a predetermined positioning instruction (search request, urgent search request, etc.), the GPS positioning unit 107 performs positioning processing to acquire position information. You may do so. The position information thus measured is stored in the history table 108 d together with the MAC address of the slave terminal acquired by the short-distance wireless communication unit 106 at that time and the time information indicating the measured time. Note that the present invention is not limited to GPS positioning, and approximate position information may be acquired using a mobile communication network or a base station of a wifi network.

  The management table 108 is a part for storing the own terminal information table 108a, the group information table 108b, the emergency information table 108c, and the history table 108d. Specific examples of the various information will be described in more detail with reference to FIG.

  FIG. 4A shows the own terminal information table 108a, which shows information of the portable terminal 100 functioning as a request source terminal. The own terminal information table 108a includes a mode state as a parent unit (parent unit state: here indicates pairing in progress), a MAC address of the child terminal 150 (child MAC), a passkey (for Bluetooth communication) And the possible operation with the handset terminal 150 are described in association with each other. In addition, as a mode state, mode I is stored when pairing with slave terminal 150 is performed, and mode II is stored when non-pairing is detected, and a search is in progress. In the case, mode III is stored, and in the case of high urgency during search (during search), mode IV is stored.

  The master unit and the slave units are not limited to the one-to-one relationship, and a plurality of slave units can be managed in association with one master unit. FIG. 4E is a specific example of the own terminal information table 108a for the management. As shown in FIG. 4 (e), a column called slave unit ID is added, and in this column, an ID for specifying the slave unit terminal 150 is described with a branch number attached. In general, pairing can be performed by only one child device with respect to the parent device. Therefore, it is described that the other child device terminal 150 which is not paired is non-paired as the parent device state. In the case of the non-pairing state, for example, it is described as mode II, and may be a search target according to the state.

  FIG. 4B shows the group information table 108b. The group information table 108 b describes the combination of the portable terminal 100 and the child device terminal 150 belonging to the same group and the MAC address of the child device terminal 150 in association with each other. Further, the group information table 108b has a search flag column, and the search flag is used to make it possible to specify the slave terminal 150 to be searched.

  FIG. 4C shows the emergency information table 108c. The emergency information table 108 c describes the MAC address of the slave terminal 150 as the search target when the mobile terminal 100 functioning as the request destination terminal makes an emergency search request. Although not shown, a pass key may be stored together.

  FIG. 4D shows the history table 108d. The MAC address of each slave terminal 150 acquired by the short-distance wireless communication unit 106 is stored in association with the position information of the portable terminal 100 at the time of acquisition and the time information thereof. In the history table 108d, the MAC address and its position information and the like are stored in chronological order according to the acquired time, and, for example, the MAC address and the like acquired within the past 24 hours are stored.

  With such a configuration, when the mobile terminal 100 functions as a request source terminal, the mobile terminal 100 sends a search request to the server 200, and displays the position of the slave terminal 150 and its time according to the search request. Can. When the mobile terminal 100 functions as a request destination terminal, the mobile terminal 100 performs a search process for the slave terminal 150 to be searched based on the search request from the other mobile terminal 100.

  Next, the server 200 will be described. FIG. 5 is a block diagram showing the functional configuration of the server 200. As shown in FIG. As shown in FIG. 5, the server 200 includes a communication unit 201, a control unit 202, a management table 203 (group information storage unit), and a search instruction processing unit 204 (search processing unit). This server 200 is also realized by a computer system having hardware such as a CPU, a RAM, a ROM, etc., as shown in FIG.

  The communication unit 201 receives own terminal information from each portable terminal 100 to generate group information, and a search request (a terminal ID of the portable terminal 100 and a search target thereof from the portable terminal 100 functioning as a request source terminal). It is a part that receives a terminal ID indicating a certain child device terminal 150). Further, it is a part for transmitting, by broadcast, group information for requesting the search processing to the portable terminal 100 functioning as the request destination terminal.

  The control unit 202 is a part that stores the own terminal information from each mobile terminal 100 received by the communication unit 201 in the management table 203 and generates group information.

  The management table 203 is a part for storing group information generated by the control unit 202. The group information stores the association between the portable terminal 100 in each group and its child device terminal 150. FIG. 6 is an explanatory diagram of group information stored in the management table 203. As shown in FIG. As shown in FIG. 6, a master device ID, a slave device ID, a MAC address, a search flag, and a passkey are associated with each group. Here, the master device ID is a terminal ID of the portable terminal 100, and the slave device ID is a terminal ID of the slave device terminal 150. The MAC address is an address uniquely assigned to each terminal, and the search flag indicates the portable terminal 100 that has received the search request and the slave terminal 150 thereof. The passkey is key information for performing Bluetooth communication.

  The search instruction processing unit 204 is a part that adds a search flag to the group information stored in the management table 203 based on the search request received by the communication unit 201. Then, the search instruction processing unit 204 transmits the group information together with the search request to the portable terminal 100 of the group including the MAC address associated with the search flag via the communication unit 201.

  When the search instruction processing unit 204 receives a response to the search request (position information indicating the position of the slave terminal 150 and time information) from the portable terminal 100 functioning as the request destination terminal via the communication unit 201, The position information and the time information are transmitted to the portable terminal 100 functioning as the request source terminal. Thereafter, the search instruction processing unit 204 deletes the search flag in the group information stored in the management table 203.

  Further, upon receiving a search end instruction from the mobile terminal 100 functioning as the request source terminal, the search instruction processing unit 204 deletes the search flag in the group information.

  In addition, if the search instruction processing unit 204 does not receive the position information and the like of the slave terminal 150 from the portable terminal 100 functioning as the request destination terminal within a predetermined time, the communication unit 201 It notifies to the portable terminal 100 which functions as a request origin terminal via it.

  Thus, server 200 generates group information based on information from portable terminal 100 functioning as a request source terminal, and, upon receiving a search request for a slave terminal, adds a search flag to the group information, And the group information is transmitted to the portable terminal 100 which functions as a request destination terminal. Further, when a portable terminal is found from the portable terminal 100 functioning as the request destination terminal, the position information and time information thereof are received, and transmitted to the portable terminal 100 functioning as the request source terminal.

  Next, a position management method using the portable terminal 100 that makes a search request to the server 200 configured as described above will be described. FIG. 7 is a flowchart showing a series of operations from the time of power on in the portable terminal 100 to the scan processing of the terminal ID.

  First, when the mobile terminal 100 is powered on, access processing is performed on the mobile communication network, and the emergency search request and the emergency search target information are received from the server 200 by the communication unit 103. It is stored in the emergency information table 108c (S101). According to this process, the communication unit 103 transmits the own terminal information described in the own terminal information table 108a to the server 200 (S102). In the server 200, the control unit 202 creates group information based on the own terminal information table 108a. Then, group information is transmitted from the server 200 and described in the group information table 108 b in the management table 108 (S 103).

  Here, there are various methods of generating the group information table 108b. For example, it is conceivable that the group ID is set in advance in the own terminal information, and the server 200 generates the group information by using the group ID as a key. In addition, a group of parent device IDs of the portable terminal 100 is stored in advance in the server 200, and by acquiring the own terminal information from each portable terminal 100, the child device ID and the MAC address are associated with the parent device ID. Can also generate group information.

  Next, it is judged by the control unit 104 whether or not there is a slave terminal 150 for which the search flag is present in the group information table 108b (S104). Here, if it is determined that there is a record with a search flag, processing for changing a preset scan frequency is performed (S105). For example, increasing the scan frequency (shortening the scan interval) to make it advantageous to search for the slave terminal 150 can be considered.

  After various setting processes from such an initial state, the first scan process (MAC address acquisition process) by the short distance wireless communication unit 106 (Bluetooth) is performed (S107). Here, the history management unit 105a adds the MAC address of the slave terminal 150 found by this scan to the history table 108d (S108). When the MAC address of the slave terminal 150 is acquired by scan processing, the GPS positioning unit 107 acquires the position information and time information of the portable terminal 100 according to the instruction from the history management unit 105a. The acquired position information and time information are described in the history table 108 d together with the MAC address.

  After the description of the history table 108d, the control unit 104 determines whether the found MAC address exists in the emergency information table 108c (S109). Here, if it is determined that it exists, the process execution unit 105 executes a predetermined process A (S110). For example, the latest position information stored in the history table 108 d and the time information which is the positioning time are transmitted to the server 200. In addition to that, the processing execution unit 105 executes predetermined operation processing on the found child device terminal 150 (S110).

  Further, the control unit 104 determines whether the found MAC address matches the MAC address linked to the search flag of the group information table 108b (S111). Here, if it is determined that they match, a predetermined process B is executed (S112). The process A and the process B will be described in FIG.

  Next, the control unit 104 determines whether the found MAC address is present in the own terminal information table 108a (S113). Here, if it is determined that the near-field wireless communication unit 106 performs pairing processing with respect to the slave terminal 150, the control unit 104 simultaneously sets the master unit status of the own terminal information table 108a to mode I. It is set (S114).

  Then, after that, Bluetooth (BT) scan processing shown in S107 to S112 is performed for each predetermined scan frequency (S115). After that, the control unit 104 determines whether the portable terminal 150 is in the process of pairing by the short distance wireless communication unit 106 (S116). Here, if pairing is in progress, the process returns to S115, and after waiting for a predetermined time, BT scan processing is performed, and this is repeatedly performed. On the other hand, if it is determined that the portable terminal 150 is not in the process of pairing by the short distance wireless communication unit 106, the process C by the process execution unit 105 is executed (S120). The process C indicates that the display unit 102 displays an alert that the pairing with the slave terminal 150 has been disconnected.

  On the other hand, when the control unit 104 determines that the MAC address found by the short distance wireless communication unit 106 does not exist in the own terminal information table 108a in S113 (S113: No), the control unit 104 determines the own terminal information table. The parent device state of 108a is set to mode III (S117). And BT scan processing (S107-S112) is performed for every predetermined scan frequency (S118). Here, if the found MAC address exists in the own terminal information table 108a, BT scan is executed after waiting for a predetermined time until it is judged by the control unit 104 (S119), and this is repeated (S119: No ). On the other hand, if the found MAC address exists in the own terminal information table 108a (SS19: Yes), the process proceeds to S114, and the parent device state of the own terminal information table 108a is set to mode I (S114).

  In this manner, the portable terminal 100 can function as a request destination terminal based on the initial setting at the time of power on, and performs a search process of the slave terminal 150 in accordance with the group information transmitted from the server 200. be able to.

  Next, processing A to processing C in S110, S112, and S120 described in FIG. 7 described above will be described. FIG. 8A is a flowchart showing process A. As shown in FIG. 8A, when it is determined that the MAC address scanned by the short distance wireless communication unit 106 is present in the emergency information table 108c in the portable terminal 100, the process execution unit 105 performs the emergency information An inquiry of a passkey of the slave terminal 150 represented by the MAC address described in the table 108c is made to the server 200 (S110a).

  In the server 200, in response to a request from the portable terminal 100, the control unit 202 issues a passkey corresponding to the MAC address to be inquired based on the group information of the management table 203 (S110e).

  In the portable terminal 100, when the passkey is acquired by the process execution unit 105, the short distance wireless communication unit 106 accesses the slave terminal 150 using the passkey (S110b). Then, a predetermined operation is performed (S110c). For example, processing such as acquisition of the telephone number of the portable terminal 100 which is the parent device, acquisition and transmission of a message, and other telephone calls are performed. Then, while performing the operation, the control unit 104 reads out the position information and the time information described in the history table 108 d, and the communication unit 103 transmits the information to the server 200 (S 110 d).

  The server 200 receives the position information and the time information transmitted from the portable terminal 100, and the position information and the time information are transmitted to the other portable terminal 100 that has made the urgent search request (S110 f). Here, the mobile terminal 100 that has made the emergency search request is specified based on the group information.

  Then, the received position information and time information are displayed on the other portable terminal 100 that has made the urgent search request (S110 g). Note that a message indicating that the predetermined operation performed in S110c has been performed (or a failure to do so) may also be received and displayed.

  FIG. 8A shows a process in which the portable terminal 100 functioning as the request destination terminal automatically issues a passkey payout request, but the present invention is not limited to this. For example, the mobile terminal 100 functioning as the request destination terminal may inquire, via the server 200, to the mobile terminal 100 functioning as the request source terminal whether or not to perform the default operation. In that case, the portable terminal 100 functioning as the request source terminal displays a message to select whether or not the user is to perform the default operation, and when the default operation is to be performed by user selection, the passkey request destination terminal It instructs the server 200 to pay out.

  Next, the process B will be described. FIG. 8B is a flowchart showing the process B. As shown in FIG. 8B, when it is determined that the MAC address scanned by the short distance wireless communication unit 106 is the one to which the search flag is added in the group information table 108b in the portable terminal 100, the control unit The position information and the time information described in the history table 108d are read out by 104 and transmitted to the server 200 via the communication unit 103 (S112).

  The server 200 receives the position information and the time information transmitted from the portable terminal 100, and the position information and the time information are transmitted to the other portable terminal 100 which has made the urgent search request (S112x). Here, the mobile terminal 100 that has made the emergency search request is specified based on the group information.

  Further, in the mobile terminal 100 functioning as the request destination terminal, the position information and the time information are received and notified to the user (S 112 y).

  Next, the process C will be described. FIG. 8C is a flowchart showing the process C. As shown in FIG. 8C, the portable terminal 100 displays that the pairing state with the slave terminal 150 has been disconnected (S120). On the other hand, also in the child device terminal 150, the fact that the pairing state with the portable terminal 100 as the parent device has deviated is displayed (S120x.

  Next, processing of the portable terminal 100 functioning as a request destination is explained, in which a search request is received from the server 200 by broadcast in response to a request of another portable terminal functioning as a request source. While the scan process for the search request in FIG. 1 is an initial scan process when the power of the portable terminal 100 is turned on, the scan process in FIGS. 9 and 10 is a process based on the explicit search request from the user. It is.

  FIG. 9 is a flowchart showing processing of the portable terminal 100 functioning as a request destination that has received a search request from another portable terminal. First, when the communication unit 201 receives a search request and group information which is search target information from the server 200, the control unit 104 updates the group information table 108b (S201). Here, the group information to which the search flag is newly assigned is received, and the search flag is assigned to the group information table 108b. In addition, since group information is received again and updated, not only the search flag but also when another portable terminal is newly added to the group information, the record of the other portable terminal is the group information It may be granted to

  Then, under the control of the control unit 104, scan processing by the short distance wireless communication unit 106 is performed (S202), and a history table 108d is generated in which the MAC address of the slave terminal 150 found by scanning is listed. Alternatively, new history information is added to the history table 108d (S203). The interval of the scanning process may be performed in a predetermined cycle, or may be a cycle according to the moving speed of the portable terminal 100. For example, when the moving speed is high, shortening the cycle or the like is effective in searching for the slave terminal 150.

  After the generation of the history table 108d, the control unit 104 determines whether the MAC address of the search flag in the group information table 108b matches the MAC address obtained by scanning currently (S204). Since the MAC address obtained by the current scan is added to the history table 108d after the scan, the determination process is performed by referring to the history table 108d as a result. However, processing may be performed based on the temporarily held MAC address without immediately registering the scanned MAC address in the history table 108 d.

  Here, when it is determined that they do not match, the control unit 104 further determines whether the MAC address to which the search flag of the group information table 108b is added is described in the history table 108d (S205). . Here, if it is determined that there is no entry in the history table 108d, it is determined that there is no child device terminal 150 to be searched, and the process ends.

  Also, if it is determined by the control unit 104 that the MAC address to which the search flag of the group information is added is matched with the MAC address obtained by scanning in S204 or S205, respectively, or described in the history table 108d. , Process B is executed (S206). The process B is a process in which the position information and its time information are transmitted to the server 200, as shown in FIG.

  Since the process of FIG. 7 is the first process after the power is turned on, there is no operation of referring to the history table 108 d, and this point is largely different.

  Next, FIG. 10 will be described. FIG. 10 is a flowchart showing processing of the portable terminal 100 functioning as a request destination that accepts an urgent search request from another portable terminal, and the processing in FIG. 9 is a normal search request, while FIG. The processing differs in that it is a search request in an emergency.

  First, when the urgent search request and the urgent search target information are received from the server 200 by the communication unit 201, the control unit 104 updates the urgent information table 108c (S211). Here, the emergency search target information is received, and the emergency search target is stored in the emergency information table 108c.

  Then, under the control of the control unit 104, scan processing by the short distance wireless communication unit 106 is performed (S212), and a history table 108d is generated in which the MAC address of the slave terminal 150 found by scanning is listed. Alternatively, new history information is added to the history table 108d (S213).

  After generation of the history table 108d, the control unit 104 determines whether the MAC address of the emergency information table 108c matches the MAC address obtained by scanning currently (S214). As described above, since the MAC address obtained by the current scan is added to the history table 108d after the scan, the determination process is performed by referring to the history table 108d as a result. Is done. However, processing may be performed based on the temporarily held MAC address without immediately registering the scanned MAC address in the history table 108 d.

  Here, if it is determined that they do not match, the control unit 104 further determines whether the MAC address of the emergency information table 108c is described in the history table 108d (S215). Here, if it is determined that there is no entry in the history table 108d, it is determined that there is no child device terminal 150 to be an emergency search target, and the process ends.

  If it is determined by the control unit 104 that the urgent search target information matches the MAC address obtained by scanning or the description in the history table 108 d is determined in S 214 or S 215, respectively, processing A is executed (S 216 ). In process A, as shown in FIG. 8A, a passkey is obtained, and the portable terminal 100 functioning as a request destination operates the slave terminal 150 using this passkey, and further, position information and its time Information is processing to be transmitted to the server 200.

  If the MAC address described in the history table 108 d is not the most recent MAC address, since it is not the currently scanned MAC address, communication by the short distance wireless communication unit 106 can not be performed. Therefore, in this case, the position information described in the history table 108 d and the time information thereof are transmitted without performing the operation by the short distance wireless communication unit 106.

  Next, the operation of the mobile terminal 100 functioning as a request source terminal will be described. FIG. 11 is a flowchart showing processing of the portable terminal 100 that makes a search request to another portable terminal via the server 200. As shown in FIG. 11, when a search request from the user is input by the search instruction unit 101 (S301), the master device state in the own terminal information table 108a of the management table 108 is changed to mode III (S302). Then, the communication unit 103 transmits the search target information. The search target information includes information for specifying the slave terminal 150 (S303).

  The MAC address of the child device terminal 150 which is the search target may be transmitted as the information for specifying the child device terminal 150. Instead, the terminal of the portable terminal 100 as the parent device is used. It may be converted to an ID or other information that enables identification of the slave terminal 150.

  Then, along with the transmission of the search target information, the communication unit 103 transmits a search request to the server 200, and an inquiry process is performed (S304).

  When the position information and time information of the slave terminal 150 to be searched are received from the server 200 in response to the inquiry processing, it is controlled whether or not the position information and time information are current information. It is judged by the part 104 (S305). Whether or not it is current information can be determined by time information. Here, if it is determined that the information is not the current information, the control unit 104 determines whether it is the information in the history table 108d (S306).

  In S305 or S306, when the position information of the slave terminal 150 to be searched and the time information thereof are received through the communication unit 103, the search instructing unit 101 displays the position information and the time information on the display unit 102. A process is performed (S307). Here, when the present position information can not be received, the past position information is received. However, without being limited thereto, each present position information and the past position information are predetermined. A period of time may be received.

  If the position information and its time information are not received in S305 or S306, the search instruction unit 101 determines that the search has ended (S308), and if it is not determined that the search has ended, the process returns to S304, again. Query processing to the server 200 is performed. Further, when the search instruction unit 101 determines that the search is ended, an end instruction is transmitted to the server 200 (S309).

  In the server 200 having received the termination instruction, the control unit 202 deletes the search flag in the group information of the management table 203. Note that whether or not the search is ended is determined by whether or not the user of the portable terminal 100 functioning as the request source terminal performs an end operation, but the present invention is not limited to this, and position information etc. in S309 are displayed It may be finished when it is done. Further, the process may be ended only when the current position information is received (except when the past information is received).

  Next, FIG. 12 is a flowchart showing processing of the portable terminal 100 that makes an emergency search request to another portable terminal via the server 200. FIG. 11 shows a process at the time of a normal search request, but FIG. 12 is different in that it shows a process at the time of a search request in an emergency.

  As shown in FIG. 11, the search instruction unit 101 inputs a search request from the user (S311), and the control unit 104 changes the parent device state in the own terminal information table 108a in the management table 108 to mode IV ( S312). Then, the emergency search target information is transmitted by the communication unit 103 (S313). The emergency search target information includes information for specifying the child device terminal 150 and a passkey for operating the child device terminal 150.

  Then, after transmitting the urgent search target information, the communication unit 103 transmits an urgent search request to the server 200, and an inquiry process is performed (S314).

  When the position information and time information of the slave terminal 150 to be searched are received from the server 200 in response to the inquiry processing, it is controlled whether or not the position information and time information are current information. It is judged by the part 104 (S315). Whether or not it is current information can be determined by time information. Here, if it is determined that the information is not the current information, the control unit 104 determines whether it is the information in the history table 108d (S316).

  In S315 or S316, when the position information of the slave terminal 150 to be the urgent search target and the time information thereof are received through the communication unit 103, the search instructing unit 101 causes the display unit 102 to display the position information and the time information Display processing is performed (S317). Here, when the present position information can not be received, the past position information is received. However, without being limited thereto, each present position information and the past position information are predetermined. A period of time may be received. In addition to the position information and the time information, when the operation result is transmitted from the portable terminal 100 functioning as the request destination terminal, the display unit 102 can also display the operation result.

  If the position information and its time information are not received in S315 or S316, the search instruction unit 101 determines that the search has ended (S318), and if it is determined that the search has not ended, the process returns to S314, again. Query processing to the server 200 is performed. When the search instruction unit 101 determines that the search is ended, an end instruction is transmitted to the server 200 (S319). In the server 200 that has received the termination instruction, the emergency information table 108c is erased.

  It should be noted that whether or not the search is ended is determined based on whether or not the user of the portable terminal 100 functioning as the request source terminal performs an end operation, but the present invention is not limited to this. It may be finished when it is done. Further, the process may be ended only when the current position information is received (except when the past information is received). Furthermore, the search process may be ended only when information indicating that a predetermined operation has been performed is received.

  Here, the display processing of the position information and time information in the above-described processing S317 will be described in detail. FIG. 25 is a flowchart showing a specific process of process S317. In this example, it is assumed that the route estimation unit (not shown) executes the process shown in FIG. Further, in the processing S315 and the processing S316, it is assumed that a plurality of position information including current position information and time information corresponding thereto are received.

  When the communication unit 103 receives the position information and time information of the slave terminal 150 as a search target, the route estimation unit searches the search history stored in the history table 108 d, and the received position information and time information. A comparison is made (S317a). Then, the route estimation unit extracts position information and time information that are not stored in the history table 108d (S317b).

  The history table 108d shown in FIG. 4 (d) mainly stores the search history of the scanned child device terminal when it functions as the request destination terminal, but also stores the information of its own child device terminal doing. Then, positional information and time information as shown in FIG. 26 are transmitted from each portable terminal 100 functioning as a request destination terminal through the server 200, and stored in the positional information / time information and the history table 108d. Unnecessary information can be excluded by selecting only position information other than the search history stored in the history table 108d, that is, by comparing with the existing search history. In the example of FIG. 26, when the urgent search target is 01: 02: 03: 04: 01: AA, the position information is already stored in the history table 108d at 15:00, so AM 9:20 The position information of is not used in performing path estimation and is excluded. And only position information after 15:00 will be used.

  Next, the route estimation unit reads map information from the database. This database may be stored in the terminal or may be stored at a site on the network. Then, a mark is plotted at the position based on the acquired position information on the read map information by the route estimation unit (S317c). After plotting, the route estimation unit estimates the movement route according to the time information associated with the position information (S317 d). The way of estimation here may be, for example, a method of searching for a path that constitutes the shortest path connecting the plotted positions. Then, the estimated movement route is displayed on the display unit 102 (S317e). In addition, since there may be a plurality of shortest paths, in this case, a plurality of moving paths may be displayed. Further, since the time between the position information and the position information can be known, the general moving speed can be known. Therefore, the moving means based on the moving speed may be displayed as reference information.

  Here, FIG. 27 shows a display example of the map displayed on the display unit 102. FIG. 27 (a) shows plotted positions based on position information. Here, points P11, P12, P13 and P14 are shown together with the time of their search. FIG. 27 (b) shows a moving route estimated based on position information and time information. By connecting points P11 and P12, P12 and P13, and the like, it is possible to estimate a general movement path. In the example of FIG. 27 (b), the dotted line indicates walking, and the solid line indicates movement by car.

  Next, the operation of the server 200 will be described. FIG. 13 is a flowchart showing processing of the server 200 that has received the search request. In the server 200, when the communication unit 201 receives the search target information and the search request from the portable terminal 100 functioning as the request source terminal (S401), the server 200 identifies the slave terminal 150 specified in the search target information. According to the information, the search instruction processing unit 204 assigns a search flag to the MAC address of the corresponding slave terminal 150 in the group information of the management table 203. Then, the communication unit 201 broadcasts the group information to which the search flag is added to the plurality of mobile terminals 100 associated with the group information (S402).

  When a response to the transmission of the group information to which the search flag is attached is transmitted from the portable terminal 100 in the group within a predetermined time (S403), the search instruction processing unit 204 executes the process B (S406). . Process B is the process shown in FIG. Then, when the process B ends and it is determined that the search is ended, the communication unit 201 broadcasts again the group information from which the search flag is deleted to the portable terminals 100 in the same group. (S407). In the portable terminal 100 from which the group information is received, the overwriting process is performed with the group information from which the search flag is deleted, and the search process is ended.

  On the other hand, if the response to the transmission of the group information is not transmitted from the portable terminal 100 in the group within the predetermined time in S403 (S403), the communication unit 201 under the control of the search instruction processing unit 204 The response information to the effect of the discovery failure is transmitted to the portable terminal 100 functioning as the requested source terminal (S404). Then, when the search continuation request is not received from the portable terminal 100 again, the communication unit 201 deletes the search flag in the group information in the management table 203. Then, the group information from which the search flag has been deleted is broadcasted again to the portable terminals 100 in the same group (S407). When the search continuation request is received, an instruction for ending the search is not performed, and the process enters a waiting state.

  Here, as shown in S204 and S205 which are notification processing of the slave terminal 150 in FIG. 9, since the past history information (see FIG. 4 (d)) is also a notification target, as each request destination The plurality of functional portable terminals 100 transmit, to the server 200, position information of the slave terminal 150 found at present or in the past and time information thereof. In that case, the server 200 receives the position information of the slave terminal 150 as the search target and the time information thereof from the mobile terminals 100 functioning as a plurality of request destination terminals (S403). Then, the position information and the time information are transmitted to the portable terminal 100 functioning as the request source terminal (S406).

  In the above description, the mobile terminal 100 functioning as the request source terminal generates a movement route by plotting on map information based on the position information and time information of the slave terminal 150 transmitted from the server 200, Although the display has been described, the server 200 generates the map information in which the movement route generated is plotted based on the position information and the time information, and the mobile terminal functions as the request source terminal It may be notified to 100.

  Similarly, the emergency search process in the server 200 will be described. FIG. 14 is a flowchart showing processing of the server 200 that has received the urgent search request. In the server 200, when the urgent search request and the urgent search target information are received from the portable terminal 100 functioning as the request source terminal by the communication unit 201 (S411), the slave terminal 150 specified in the search target information is specified. In accordance with the information for the search, the search instruction processing unit 204 adds a search flag to the MAC address of the slave terminal 150 that is the search target in the group information of the management table 203, and the default operation for the slave terminal 150 A passkey is stored to execute.

  Then, the urgent search target information and the urgent search request including the MAC address of the slave terminal 150 to which the search flag is added among the group information by the communication unit 201 is broadcasted to the portable terminal 100 in the group. (S412).

  When a response to the transmission of the urgent search request is transmitted from the portable terminal 100 in the group within a predetermined time (S413), the search instruction processing unit 204 executes processing A (S416). Process A is the process shown in FIG. Then, when the process A ends and it is determined that the search is ended, the communication unit 201 broadcasts again the urgent search target information whose passkey is deleted to the portable terminals 100 in the same group. (S417). In the portable terminal 100 from which the urgent search target information has been received, the overwrite processing is performed with the urgent search target information, and the search processing is ended.

  On the other hand, if the response to the transmission of the group information is not transmitted from the portable terminal 100 in the group within the predetermined time in S413 (S413), the communication unit 201 causes the urgent search request under the control of the search instruction processing unit 204. The response information to the effect of the discovery failure is transmitted to the portable terminal 100 that functions as the request source terminal that performed the request (S414). Then, when the urgent search continuation request is not received from the portable terminal 100 again, the communication flag unit 201 deletes the search flag and the passkey in the group information in the management table 203. Then, the group information from which the search flag and the passkey have been deleted is broadcasted again to the portable terminals 100 in the same group (S417). When the urgent search continuation request is received, no instruction for termination is given, and the process enters a waiting state. In the above description, the same group is considered as the transmission destination of the emergency search request, but the mobile terminal 100 outside the group may be included to perform the emergency search request. Further, as in the case of the above-described normal search request, the server 200 may perform estimation processing of the movement route and the like.

  Next, the process of the slave terminal 150 will be described. FIG. 15 is a flowchart showing the process of the slave terminal 150. The slave terminal 150 is a terminal capable of executing communication by Bluetooth. First, in the search target mode by Bluetooth communication, the process stands by (S501). Then, upon receiving a pairing request from the portable terminal 100 in which the combination is set as the parent device, the slave terminal 150 performs pairing processing with the portable terminal 100 (S505). Then, when the pairing is released, the mode shifts to the search target mode by Bluetooth communication again.

  On the other hand, when a pairing request is received from a mobile terminal 100 for which a combination is not set as a parent device, that is, when a pairing request is received from the mobile terminal 100 functioning as the request destination terminal described above, the pairing is performed from the mobile terminal 100 To execute the predetermined operation according to the request from the portable terminal 100 (S504). For example, in the mobile terminal 100 (for example, the parent device A) functioning as the request destination terminal, as a preset operation, an alarm of the child device terminal 150 is sounded and a telephone number of the child device terminal 150 is acquired. Run as. Further, the child device terminal 150 may store a photograph of the face of the user holding the child device terminal 150, and may send it as a default operation to the portable terminal 100 that functions as a request destination terminal. Furthermore, when performing Bluetooth communication, the rough distance can be known from the signal strength. Therefore, in addition to the above-described processing, the portable terminal 100 functioning as the request destination terminal may calculate the distance to the child device terminal 150 and display the same.

  Note that the portable terminal 100 (for example, the master G in FIG. 23) that functions as the request destination terminal does not set a predetermined operation, and after performing pairing processing with the slave terminal 150, the mobile terminal 100 The function may be recognized. For example, when the slave terminal 150 has a Bluetooth communication function, the portable terminal 100 can acquire an available profile from the slave terminal 150 after the pairing operation. The user of the portable terminal 100 can send an instruction to the slave terminal 150 to execute an appropriate function with reference to the acquired profile (terminal type and the like). For example, it is possible to appropriately determine and sound the alarm, or to acquire the telephone number of the base unit of the handset terminal 150 registered in advance. Note that in order to perform such a specific process, it is necessary to obtain a passkey from the server 200 (see process A in FIG. 8A).

  As described above, the slave terminal 150 can maintain the pairing state with the portable terminal 100 set as the master.

  Next, a processing sequence between the portable terminal 100 and the server 200 will be described. FIG. 16 is a sequence diagram showing processing when the mobile terminal 100 is powered on. In the portable terminal 100, when the power is turned on by the user operation (S601), the urgent search request and the urgent search target information are requested to the server 20 based on the control by the control unit 104, and the acquisition is performed. (S602). The acquired emergency search target information is stored in the emergency information table 108c of the management table 108 (S603).

  Thereafter, the own terminal information stored in the own terminal information table 108a in the management table 108 is transmitted to the server 200 (S604). The server 200 generates group information based on the transmitted own terminal information and stores the group information in the management table 203 (S605). Then, the generated group information is transmitted to the portable terminal 100 that has transmitted the own terminal information (S606).

  In the portable terminal 100, the transmitted group information is stored in the group information table 108b of the management table 108 (S607). Then, when these predetermined initial settings are completed, the first scan after power on is performed by the short distance wireless communication unit 106 (S 608). Then, when the slave terminal 150 is scanned, a process corresponding to the slave terminal 150 is performed (S609). For example, when the MAC address obtained by scanning is that of the slave terminal 150 stored in the emergency information table 108 c, the processing A is executed. Further, in the case of the slave terminal 150 stored in the group information table 108 b, the processing B is executed. Furthermore, in the case of the slave terminal 150 stored in the own terminal information table 108a (ie, the own slave unit), the pairing process is performed.

  Next, a processing sequence when a search request is issued by a user operation will be described. FIG. 17 is a sequence diagram showing the process. First, a search request is transmitted from the mobile terminal 100 functioning as a request source terminal (S701). Then, in the server 200, a search flag of group information is added based on the search request (S702). The server 200 broadcasts the group information to which the search flag is assigned and the search request to the portable terminal 100 grouped by the group information (S703).

  When the mobile terminal 100 functioning as the request destination terminal receives the search request and the group information with the search flag, the short-distance wireless communication unit 106 performs scan processing (S704), and the search for the slave terminal is performed. To be done. Here, when the slave terminal 150 to be searched is found in one or some of the mobile terminals 100 among the plurality of mobile terminals 100 that have received the search request, position information and time information at that time are acquired The position information is transmitted to the server 200 (S705), and is transmitted to the portable terminal 100 functioning as a request source terminal (S706).

  Next, emergency search processing will be described. FIG. 18 is a sequence diagram showing the emergency search process. First, an emergency search request is transmitted from the mobile terminal 100 functioning as a request source terminal (S711). Then, in the server 200, a search flag of group information is added based on the urgent search request, and a passkey is stored (S712). The passkey is information necessary for operating the slave terminal 150, and is included in the emergency search request. In the server 200, the urgent search target information and the urgent search request are transmitted by broadcast to the mobile terminals 100 grouped by the group information (S713).

  In the portable terminal 100 functioning as the request destination terminal, scan processing is performed by the short distance wireless communication unit 106 (S714), and a search for the slave terminal is performed. Here, when the child device terminal 150 which is the urgent search target is found, in the mobile terminal 100 that has found it, a passkey acquisition process is performed on the server 200 (S715). Then, in the portable terminal 100, a pairing process using the passkey is performed, and a predetermined operation is performed (S716). Also, position information and time information at that time are acquired, and the position information is transmitted to the server 200 (S717), and is transmitted to the portable terminal 100 functioning as a request source terminal (S718).

  As described above, in the normal search process, the position information and the time information thereof are transmitted, and in the emergency search process, the pairing process for the slave terminal is performed.

  Below, the specific example of the lost child management using the communication system which consists of the portable terminal 100 and the server 200 in this embodiment is demonstrated. FIGS. 19 to 23 are explanatory diagrams showing state transitions when the parent device A as the portable terminal 100 searches for the child device a as the child device terminal 150. FIGS. In each of these explanatory diagrams, it is assumed that the parent device A to the parent device F as the portable terminal 100 are configured in the same group. Further, the master unit A is associated with the slave unit a as the slave terminal 150.

  FIG. 19 is an explanatory view showing a state where the parent device A as the portable terminal 100 and the child device a as the child device terminal 150 are at home. In addition, as a premise, the parent machine A is held by the parent, and the child machine a is held by the child. Further, in FIG. 19, it is assumed that the time is set to 3:00 pm. Since the master unit A and the slave unit a are at a fixed distance, the master unit A and the slave unit a are in a pairing state. In addition, it is set so that an alert will be made when the master A and the slave a are separated by a predetermined distance.

  FIG. 20 is an explanatory view showing that the parent device A is located at home and the child device a is located at a park. Here, it is 4:00 pm. In this case, the parent device A and the child device a are in a non-pairing state. On the other hand, in FIG. 20, the user holding the parent device B is on the bus, which indicates that the bus has passed in front of the park. At this time, the master unit B scans the MAC address of the slave unit a within the range of the short distance wireless communication. Then, when the MAC address is scanned, the GPS positioning unit 107 of the parent device B acquires the position information and time information, and stores it in the management table 108 in association with the MAC address obtained by the scan. .

  FIG. 21 is an explanatory view showing that the parent device A is located at home and the child device a is away from the park. Here, it is 5:00 pm. When the parent device A transmits a search request, the server 200 sends group search information to the parent device B to the parent device F in the group, group information in which a search flag is given to the child device a as a search request and a search target Is sent by group cast.

  In the state of 5:00 pm shown in FIG. 21, handset a is not scanned by any of the masters. On the other hand, it is stored in the history table 108d that the master unit B scans the slave unit a at 4:00 pm. Accordingly, in response to the search request, the parent device B transmits, to the server 200, the position information and its time information stored in the history table 108d.

  FIG. 22 is an explanatory view showing that the base unit A is located at home and the handset a is in the scan range of the base unit F. Here, it is PM 6:00. Here, subsequently, the search request from the parent device A is continued, and when the search request is transmitted from the parent device A, the parent device F performs a scan process. At that time, when the parent device F discovers that the child device a is in the range of the short distance wireless communication, it notifies the parent device A of the position information and time information at that time through the server 200.

  FIG. 23 is an explanatory view showing a state where the child device a has come out of the group range. Here, it is 7:00 pm. A parent who does not return even after late at night (a user who holds the parent device A) performs an operation of transmitting an emergency search request. The server 200 having received the urgent search request sends an urgent search request to the mobile terminal 100 of all the groups (including the group other than the group to which the parent device A belongs) held therein, the urgent search target information (child It will be sent together with the MAC address of device a).

  As shown in FIG. 23, the handset a is found by the master G outside the group, and by performing a predetermined operation, the user of the handset a is lost, and the telephone number that is the contact point is It can be obtained from handset a. In this example, it can be assumed that there are a plurality of terminals that function as parent devices. In that case, the terminal that has accessed the handset a first to establish the Bluetooth communication can be processed with priority.

  The example of a display screen of the portable terminal 100 which showed displaying a movement path | route and a movement means in FIG. 24 is demonstrated. In FIG. 24, points P 1, P 2, P 3, P 4 and P 5 are shown as the movement route of the slave terminal 150. For example, the slave terminal 150 is found at 3 o'clock at point P1 and at 4 o'clock at point P2. Assuming that the distance between the points P1 and P2 (the road segment) is 2 km, the moving speed is known to be 2 km / h, and it can be estimated that the moving means at such a speed is walking. On the other hand, assuming that the distance between the point P4 and the point P5 is 30 km, the moving speed is 30 km / h, and the moving means can be estimated to be a car or a train. In this screen example, it is possible to specify a road with the shortest distance connecting points as a route, display it so that it can be specified, and display its moving means. As a method of estimating the moving means, it is conceivable to use a correspondence table between the moving speed and the moving means.

  As described above, it is possible to construct a network for searching for a lost child by using the mobile terminal 100 generally held. Then, using this network, it is possible to know the position of the lost child and to know that it is lost.

  Below, the effect of the communication system of this embodiment is demonstrated. In the communication system of the present embodiment, the portable terminal 100 functions as a request destination terminal and the portable terminal 100 functions as a request source terminal.

  Then, the GPS positioning unit 107 in the portable terminal 100 functioning as the request destination terminal acquires the position information at a predetermined timing, and the short distance wireless communication unit 106 periodically performs the short distance wireless communication. The MAC address, which is information for identifying the mobile terminal 150, is acquired.

  Then, the control unit 104 receives, via the communication unit 103, information (MAC address) for specifying a slave terminal as a target of a search request from the mobile terminal 100 functioning as a request source terminal, together with the search request, It is determined whether the MAC address matches the information (MAC address) for identifying the slave terminal acquired by the short-distance wireless communication unit 106.

  If the control unit 104 determines that the MAC addresses match, it transmits the position information at the time of acquisition of the MAC address to the portable terminal 100 functioning as the request source terminal.

  Accordingly, even if the position of the portable terminal 100 functioning as the request destination terminal is not fixed in advance, the position information of the portable terminal 100 (for example, the parent device F) functioning as the request destination terminal at the time of discovery of the slave terminal 150 Can be notified to the mobile terminal 100 (for example, the parent device A) functioning as the request source terminal. Therefore, it is not necessary to construct a network or the like for searching for the slave terminal 150, and the present invention can be easily applied to a mobile terminal such as a mobile terminal.

  Further, in the portable terminal 100 functioning as a request source terminal in this communication system, a request destination terminal in which the search instruction unit 101 belongs to the same group as the portable terminal 100 (for example, the parent device A) functioning as a request source terminal The search target information is transmitted together with the search request to the mobile terminal 100 (for example, the parent devices B to F) functioning as Then, in each of the mobile terminals 100 functioning as the request destination terminal, the control unit 104 performs determination processing based on the MAC address which is the search target received via the communication unit 103. As a result, it is possible to request a search for a slave unit to the portable terminal 100 functioning as a request destination terminal of the same group.

  Further, in portable terminal 100 functioning as a request destination terminal in this communication system, when control unit 104 determines that the MAC addresses match, processing execution unit 105 further executes a predetermined operation on slave terminal 150. Control to As a result, not only the notification of the position information but also the slave terminal 150 can be made to perform a predetermined operation, and a more appropriate response can be performed. For example, the user of the portable terminal 100 that functions as the request destination terminal can discover the search target by sounding an alarm or the like.

  Further, in the portable terminal 100 functioning as the request destination terminal, the history table 108 d includes the position information acquired by the GPS positioning unit 107 at a predetermined timing and the MAC address acquired by the short distance wireless communication unit 106. It is stored in association with time information indicating the acquired time.

  Here, by making the acquisition cycle of the MAC address by the short distance wireless communication unit 106 and the acquisition cycle of the position information by the GPS positioning unit 107 identical, the correspondence may be made, or the GPS positioning unit The MAC address may be acquired in accordance with the acquisition timing of 107. Also, conversely, the position information may be acquired by the GPS positioning unit 107 in accordance with the acquisition timing of the MAC address.

  When the control unit 104 determines that the MAC address acquired by the short distance wireless communication unit 106 does not match the MAC address specified in the search request, the MAC address is further stored in the history table 108 d. It is judged whether it is done or not. Then, when the control unit 104 determines that it is stored in the history table 108 d, the communication unit 103 is associated with the MAC address of the slave terminal to be searched which is stored in the history table 108 d. The position information and time information are transmitted to the portable terminal 100 functioning as a request source terminal.

  Thereby, it is possible to notify the mobile terminal 100 functioning as the request source terminal of the position information and the time information thereof in the past by using the MAC address of the slave terminal 150 acquired in the past. Therefore, even if it is not in the vicinity of which portable terminal 100 at the present time, it can be grasped in the past which portable terminal 100 it was in, and its position.

  Further, the communication system may further include a server 200 that manages the portable terminal 100 functioning as a request source terminal and the portable terminal 100 functioning as a request destination terminal. When the server 200 receives a search request from the portable terminal 100 functioning as a request source terminal, the server 200 can issue a search request to the portable terminal 100 functioning as a request destination terminal.

  Further, the server 200 is provided with a management table 203 for storing group information indicating the group configuration of each mobile terminal 100. Then, the search instruction processing unit 204 sends a search request to the portable terminal 100 that functions as a request destination terminal based on the group information stored in the management table 203. This makes it possible to easily make a search request on a group basis.

100: Mobile terminal, 101: search instruction unit, 102: display unit, 103: communication unit, 104: control unit, 105: processing execution unit, 105a: history management unit, 106: short distance wireless communication unit, 107: GPS positioning Unit 108 108 management table 108a own terminal information table 108b group information table 108c emergency information table 108d history table 150 child device terminal 200 server 201 communication unit 202 control unit , 203 ... management table, 204 ... search instruction processing unit.

Claims (8)

In a communication system in which a request source terminal that makes a search request for a slave terminal and a plurality of request destination terminals that receive the search request from the request source terminal are connected by wireless communication,
The request source terminal is
Search request means for making a search request to the request destination terminal;
A notification unit that notifies the user of position information acquired from the request destination terminal as a response to the search request by the search request unit;
Equipped with
Each of the requested terminals is
Position information acquisition means for acquiring position information of the request destination terminal;
A handset information acquisition means for acquiring information for specifying a handset terminal by near field communication on a regular basis;
Receiving means for receiving, from the request source terminal, a search request and information for specifying a slave terminal as a search target;
Whether the information for specifying the child device terminal which is the target of the search request received by the receiving means matches the information for specifying the child device terminal obtained by the child device information obtaining means , And a handset judging means for judging whether or not the search request is urgent .
If it is determined that the information for identifying the child device terminal matches by the child device determination means, the information is acquired by the position information acquisition means when information for identifying the child device terminal is acquired by the child device information acquisition means. Send the location information to the request source terminal,
If the information for identifying the child device terminal is determined to match by the child device determination means, and it is further determined that the search request requires urgency, the child device information acquisition means identifies the child device terminal. Transmitting means for transmitting position information acquired by the position information acquiring means to the request source terminal at the time of acquiring the information, and for acquiring contact information of the child machine terminal from the child machine terminal ; Communication system provided. In the request source terminal,
The search request means transmits search target information indicating a slave terminal to be searched, together with a search request, to a request destination terminal belonging to the same group as the request source terminal.
At each of the requested terminals:
The communication system according to claim 1, wherein the child device judging means performs judgment processing based on the child device terminal indicated by the search target information. At each of the requested terminals:
The slave control device according to claim 1 or 2, further comprising execution control means for controlling the slave terminal to execute a predetermined operation when the slave unit determination means determines that the information specifying the slave terminal matches. The communication system according to 2. The requested terminal is
A storage unit that stores information for specifying a slave unit terminal acquired by the slave unit information acquisition unit in association with position information acquired by the position information acquisition unit and time information indicating the acquired time; ,
Equipped with
The child machine judging means judges whether information for specifying a child machine terminal which is a target terminal of a search request is stored in the storage means, and it is judged that the information is stored in the storage means In this case, the transmission unit transmits, to the request source terminal, position information and time information associated with the information for specifying the child device terminal stored in the storage unit.
The communication system according to any one of claims 1 to 3. In a communication system further comprising a server that manages the request source terminal and the request destination terminal,
The server is
The communication system according to any one of claims 1 to 4, further comprising: search processing means for issuing a search instruction to the request destination terminal when receiving a search request from the request source terminal. The server is
And group information storage means for storing group information indicating group configurations of the request source terminal and the request destination terminal,
The search processing means issues a search instruction to a request destination terminal based on group information stored in the group information storage means.
The communication system according to claim 5. Position information acquisition means for acquiring position information of the request destination terminal;
A handset information acquisition means for acquiring information for specifying a handset terminal by near field communication on a regular basis;
A receiving unit that receives, from the request source terminal, a search request and information for specifying a slave terminal that is a search target;
Whether the information for specifying the child device terminal which is the target of the search request received by the receiving means matches the information for specifying the child device terminal obtained by the child device information obtaining means , And a handset judging means for judging whether or not the search request is urgent .
When it is determined that the information for specifying the child device terminal matches by the child device determination means, the position information acquisition means acquires the information for specifying the child device terminal by the child device information acquisition means Transmitted location information to the request source terminal,
If the information for identifying the child device terminal is determined to match by the child device determination means, and it is further determined that the search request requires urgency, the child device information acquisition means identifies the child device terminal. Transmitting means for transmitting position information acquired by the position information acquiring means to the request source terminal at the time of acquiring information, and for acquiring contact information of the child machine terminal from the child machine terminal ;
Mobile terminal equipped with In a position management method of a communication system in which a request source terminal that makes a search request for a slave terminal and a plurality of request destination terminals that receive the search request from the request source terminal are connected by wireless communication,
In the request source terminal,
A search request step of making a search request to the request destination terminal;
A notification step of notifying a user of position information acquired from the request destination terminal as a response to the search request in the search request step;
Is executed,
At each of the requested terminals:
A position information acquisition step of acquiring position information of the request destination terminal;
A child device information acquisition step of acquiring information for specifying a child device terminal by near field communication periodically;
A receiving step of receiving, from the request source terminal, a search request and information for specifying a slave terminal as a search target;
Whether the information for specifying the child device terminal that is the target of the search request received in the receiving step matches the information for specifying the child device terminal obtained in the child device information obtaining step , And a child machine judging step of judging whether the search request is urgent .
When it is determined that the information for specifying the child device terminal matches in the child device determination step, the information is obtained in the position information acquisition step when the information for specifying the child device terminal is obtained in the child device information acquisition step. And transmits the determined position information to the request source terminal, and the child device determination step determines that the information for identifying the child device terminal matches, and further determines that the search request requires urgency, The position information acquired in the position information acquisition step is transmitted to the request source terminal at the time of acquisition of information for specifying the child device terminal in the child device information acquisition step, and from the child device terminal, the child device terminal A sending step for obtaining contact information of
Location management method to be performed.

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