JP2015195560A - Communication system, mobile terminal and position management method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To manage the position of a slave unit in a communication system which is also applicable to a mobile terminal to be connected to a mobile communication network.SOLUTION: A control unit 104 receives, along with a search request, a MAC address of a slave unit terminal, which is the target of the search request, from a mobile terminal 100 which functions as a request source terminal, to judge whether or not the MAC address is coincident with the MAC address of the slave unit terminal acquired by a short-range radio communication unit 106. When judging that the MAC address is coincident, the control unit 104 transmits, at the acquisition of the MAC address, positional information to the mobile terminal 100 which functions as the request source terminal.

Description

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

  In recent years, with the declining birthrate, interest in watching over children has increased, and devices equipped with functions for preventing children from getting lost and watching over have been considered. For example, there are various types of devices such as a device that notifies the current position using GPS communication and a device that generates an alarm when a certain distance between a pair of dedicated master / slave devices is exceeded.

  In closed spaces such as amusement parks and theme parks, a position detection system using a fixed network (Patent Document 1: Japanese Patent Application Laid-Open No. 2003-116166) is considered. In this patent document 1, it is described that the position of the slave unit detected by the master unit is notified.

Japanese Patent Laid-Open No. 2003-116166

  In the conventional technology, if the alarm sounds when a certain distance is exceeded between the pair of dedicated master / slave units, the alarm is notified when the slave unit leaves, but the location cannot be specified. In addition, it is hard to show effect in taking away. In addition, the technique described in Patent Document 1 needs to construct the master unit in a grid pattern in advance, and is difficult to apply to a device using a general mobile communication network.

  Accordingly, an object of the present invention is to provide a communication system, a portable terminal, and a position management method capable of managing the position of a slave unit, which can be applied to a portable terminal connected to a mobile communication network. To do.

  In order to solve the above-described problem, the communication system of the present invention is configured such that a request source terminal that makes a search request for a slave device and a plurality of request destination terminals that receive a search request from the request source terminal are connected by wireless communication. In the communication system, the request source terminal sends search request means for making a search request to the request destination terminal, and positional information acquired from the request destination terminal as a response to the search request by the search request means to the user. Each of the notification means for notification and the request destination terminal acquires position information acquisition means for acquiring the location information of the request destination terminal, and periodically acquires information for specifying the slave terminal by short-range wireless communication A slave unit information acquisition unit that receives the search request and information for identifying the slave unit terminal that is the search target from the request source terminal, and a search unit that is received by the reception unit. A handset determination unit that determines whether information for specifying a handset terminal that is a target of the request matches information for specifying the handset terminal acquired by the handset information acquisition unit; When it is determined by the slave unit determining means that the information for specifying the slave unit terminal matches, the slave unit information acquiring unit acquires the information for specifying the slave unit terminal by the location information acquiring unit. Transmitting means for transmitting the received position information to the request source terminal.

  The communication system of the present invention is a communication method of a communication system in which a request source terminal that performs a search request for a slave terminal and a plurality of request destination terminals that receive a search request from the request source terminal are connected by wireless communication. In the request source terminal, a search request step for making a search request to the request destination terminal, and a notification step for notifying a user of the location information acquired from the request destination terminal as a response to the search request in the search request step. A location information acquisition step that is executed and acquires location information of the request destination terminal at each of the request destination terminals, and a slave unit that periodically acquires information for specifying the slave terminal by short-range wireless communication An information acquisition step, a reception step of receiving information for specifying a search request and a slave device that is a search target from the request source terminal; It is determined whether or not the information for specifying the slave terminal that is the target of the search request received in the reception step matches the information for specifying the slave terminal acquired in the slave unit information acquisition step. When the slave unit determination step and the slave unit determination step determine that the information for specifying the slave unit terminal matches, at the time of acquisition of the information for specifying the slave unit terminal by the slave unit information acquisition step, And a transmitting step of transmitting the position information acquired in the position information acquiring step to the request source terminal.

  According to this configuration, in the request destination terminal, the position information is acquired, and information for specifying the slave terminal that is the target of the search request specifies the slave terminal acquired by the short-range wireless communication. It is determined whether the information matches, and if it is determined that the information matches, the position information acquired at the time of acquisition of 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, the request source terminal can be notified of the location information of the request destination terminal when the slave terminal is found. Therefore, it is not necessary to construct a network for searching for the child device terminal, and it can be easily applied to a movable device such as a portable terminal.

  Further, in the communication system according to the present invention, in the request source terminal, the search request unit is a search target with respect to a request destination terminal belonging to the same group as the request source terminal. Search target information indicating a terminal is transmitted, and in each of the request destination terminals, the slave unit determination means performs a determination process based on the slave unit 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 the slave unit indicated by the search target information in each of the request destination terminals Judgment processing based on information for specifying the terminal is performed. Thereby, it is possible to request a search for the slave unit to the request destination terminals of the same group.

  In the communication system according to the present invention, when each of the request destination terminals determines that the information specifying the child device terminal matches by the child device determining means, a predetermined operation is performed on the child device terminal. Execution control means for controlling to execute

  According to the present invention, when it is determined that the information specifying the child device terminal matches, the child device terminal is further controlled to execute a predetermined operation. As a result, not only the location information is notified, but also the slave terminal can perform a predetermined operation, and a more appropriate response can be performed.

  Further, in the communication system of the present invention, the request destination terminal uses the location information acquired by the location information acquisition unit and the acquisition thereof as information for specifying the slave device terminal acquired by the slave device information acquisition unit. Storage means for storing the information in association with time information indicating the time when the information is stored, and the slave unit determination unit stores information for specifying the slave unit terminal that is the target terminal of the search request stored in the storage unit. If it is determined that the information is stored in the storage means, the transmission means is associated with information for specifying the slave terminal stored in the storage means. The current position information and time information are transmitted to the request source terminal.

  According to the present invention, the information for identifying the acquired handset terminal is stored in association with the position information acquired at a predetermined timing and the time information indicating the acquired time. It is determined whether or not information for specifying the slave terminal that is the target terminal of the request is stored in the storage means. 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 time information associated with the information for identifying the slave terminal that is currently connected are transmitted to the requesting terminal. As a result, it is possible to notify the requesting terminal of the past location information and the time information using the information for specifying the slave terminal acquired in the past. Therefore, even if the slave terminal to be searched is not in the vicinity of which request destination terminal at the time of the search request, it is possible to grasp which request destination terminal was in the past and its position.

  The communication system of the present invention further includes a server that manages the request source terminal and the request destination terminal. When the server receives a search request from the request source terminal, the server receives the search request from the request source terminal. Search processing means for issuing a search instruction to the search is further provided.

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

  In the communication system of the present invention, the server further includes 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 is stored in the group information storage means. A search instruction is issued to the requested terminal based on the stored group information.

  According to this invention, the group information indicating the group configuration of the request source terminal and the request destination terminal is stored, and a search instruction is given to the request destination terminal based on this group information. Thereby, it is possible to easily perform a search instruction in units of groups.

  Also, in the communication system of the present invention, position information acquisition means for acquiring the position information of the requested terminal, and handset information acquisition means for periodically acquiring information for specifying the handset terminal by short-range wireless communication And receiving means for receiving the search request and information for specifying the slave terminal that is the search target from the request source terminal, and for specifying the slave terminal that is the target of the search request received by the receiving means The slave unit determining means for determining whether or not the information matches the information for specifying the slave unit terminal acquired by the slave unit information acquiring unit, and the slave unit terminal is specified by the slave unit determining unit When it is determined that the information for matching is determined, the location information acquired by the location information acquisition unit is transmitted to the request source terminal when the information for specifying the slave unit terminal is acquired by the slave unit information acquisition unit Includes a transmission means that, a.

  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-range wireless communication. If it is determined that the information matches, the position information acquired at the time of acquiring 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, the request source terminal can be notified of the location information of the request destination terminal when the slave terminal is found. Therefore, it is not necessary to construct a network for searching for the child device terminal, and it can be easily applied to a movable device such as a portable terminal.

  According to the present invention, it is not necessary to construct a network for searching for a handset terminal, and it can be easily applied to a mobile device such as a portable terminal.

It is a system diagram which shows the system configuration | structure of the communication system of this embodiment. It is a block diagram which shows the function structure of the portable terminal 100 of this embodiment. 2 is a hardware configuration diagram of the mobile terminal 100. FIG. It is explanatory drawing which shows the specific example of the management table. 2 is a block diagram showing a functional configuration of a server 200. FIG. It is explanatory drawing of the group information memorize | stored in the management table. 5 is a flowchart showing a series of operations from power-on in portable terminal 100 to terminal ID scan processing. It is a flowchart which shows the process of the process A-the process C. It is a flowchart which shows the process of the portable terminal 100 which functions as a request destination which received the search request from the other portable terminal. It is a flowchart which shows the process of the portable terminal 100 which functions as a request destination which received the emergency search request | requirement from the other portable terminal. 10 is a flowchart illustrating processing of the mobile terminal 100 that issues a search request to another mobile terminal via the server 200. It is a flowchart which shows the process of the portable terminal 100 which performs an emergency search request | requirement with respect to another portable terminal via the server. It is a flowchart which shows the process of the server 200 which received the search request. It is a flowchart which shows the process of the server 200 which received the emergency search request. It is a flowchart which shows the process of the subunit | mobile_unit terminal 150. FIG. FIG. 11 is a sequence diagram showing processing when power is turned on in portable terminal 100. It is a processing sequence diagram when performing a search request by a user operation. It is a sequence diagram which shows an emergency search process. It is explanatory drawing which shows the state when the main | base station A which is the portable terminal 100, and the subunit | mobile_unit a which is the subunit | mobile_unit terminal 150 are at home. It is explanatory drawing which shows that the main | base station A is located in a home and the subunit | mobile_unit a is located in a park. It is explanatory drawing which shows that the main | base station A is located in a home and the subunit | mobile_unit a is away from a park. FIG. 5 is an explanatory diagram showing that the parent device A is located at home and the child device a is within the scan range of the parent device F. It is explanatory drawing which shows a state when the subunit | mobile_unit a has come out of the group range. It is the example of a display screen of the portable terminal 100 which showed displaying a movement path | route and a moving means. It is a flowchart which shows the specific process of process S317. It is a figure which shows the positional information and time information of the subunit | mobile_unit terminal transmitted from the server 200. FIG. It is an example of a display of the map and movement path | route displayed on the display part 102. FIG.

  Embodiments of the present invention will be described with reference to the accompanying drawings. Where possible, the same parts are denoted by the same reference numerals, and redundant description is omitted.

  FIG. 1 is a system diagram showing a system configuration of a communication system according to the present embodiment. As shown in FIG. 1, the communication system includes a plurality of mobile terminals 100, a slave terminal 150 linked to the mobile terminal 100, and a server 200 that can communicate with the mobile terminal 100. . Here, each portable terminal 100 is described as parent device A to parent device K. Further, each child device terminal 150 is described as child device a to child device k in association with each of parent device A to parent device K. 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, but the child device terminal 150 is limited to being held by the child. For example, an elderly person, a disabled person, a pet such as a dog, etc. may hold it.

  In FIG. 1, a parent device A to a parent device F and a child device a to a child device f are further associated as a group G1. 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 by associating users in the same town, for example, and the server 200 manages grouping of the mobile terminals 100.

  Here, the mobile terminal 100 (base units A to K) is, for example, a mobile phone or a smartphone, and enables communication using a mobile communication network such as a 3G network or an LTE network. Moreover, the subunit | mobile_unit terminal 150 (subunit ak) is a communication terminal which can perform near field communication. The mobile terminal 100 can be wirelessly connected to the handset terminal 150 by short-range wireless communication. For example, the mobile terminal 100 enables Bluetooth communication with the child device terminal 150.

  Note that the portable terminal 100 may be a short-range wireless communication method that is effective within a range of several meters to several tens of meters and can communicate using a unique ID as a key. -Fi communication is considered. In the case of Wi-Fi communication, the SSID or device MAC address can be used as a key, and in the case of Bluetooth communication, the device MAC address or the like can be used as a key.

  In addition, the mobile terminal 100 is not limited to a telephone type, and in order to function as a base unit, communication using both a public communication network such as a mobile communication network and a short-range wireless communication is performed. Anything can be performed. Also, in the case of Wi-Fi communication, if you can connect to a public Wi-Fi communication network, PC (PC: equipped with Wi-Fi communication module or Bluetooth communication module), home Wi-Fi router , IBeacon parent machine can be. Further, as a slave unit, any device that functions as a so-called Bluetooth slave device terminal may be used. Wearable terminal types (watches, glasses, shoes, etc.) are possible.

  When any 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 Can perform a search process of the handset terminal 150 in response to the search request. For example, when the base unit A performs a search request as a requesting terminal that performs the search request, the base unit A first transmits a search request to the server 200. When the server 200 receives the search request, the base unit A is associated with the base unit A. A search request is transmitted to the other parent devices B to F in the same group so as to search for the child device 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.

  In addition, although the search request | requirement is performed with respect to the other portable terminal 100 in the same group here, you may make it perform a search request | requirement with respect to the portable terminal 100 which belongs to another group across a group.

  In this embodiment, the server 200 accepts a search request and transmits a search request to another mobile terminal 100. However, the server 200 is not necessarily required, and the mobile terminal 100 (for example, the parent device A) However, the search request may be transmitted to other mobile terminals 100 (base devices B to F) without using a server or the like. In that case, it is necessary to construct the group information by exchanging the own terminal information between the mobile terminals of the same group.

  Next, a functional configuration of the mobile terminal 100 will be described. FIG. 2 is a block diagram illustrating a functional configuration of the mobile terminal 100 according to the present embodiment. As shown in FIG. 2, the mobile terminal 100 includes a function as a request source terminal and a part that functions as a request destination terminal. As functions of the request source terminal, a search instruction unit 101 (search request means), a display unit 102 (notification) Means) and a communication unit 103, and functions of the request destination terminal include a communication unit 103 (reception unit, transmission unit), a control unit 104 (child device determination unit), a process execution unit 105 (execution control unit), a short distance The wireless communication unit 106 (child device information acquisition unit), the GPS positioning unit 107 (position information acquisition unit), and a management table 108 (storage unit) are configured.

  FIG. 3 is a hardware configuration diagram of the mobile terminal 100. As shown in FIG. 3, the portable terminal 100 shown in FIG. 2 physically includes one or a plurality of CPUs 11, a RAM 12 and a ROM 13 as main storage devices, an input device 14 such as a keyboard and a mouse as input devices, The computer system includes an output device 15 such as a display, a communication module 16 that is a data transmission / reception device such as a network card, an auxiliary storage device 17 such as a semiconductor memory, and the like. 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 the hardware such as the CPU 11 and the RAM 12 shown in FIG. 3. In addition, it is realized by reading and writing data in the RAM 12 and the auxiliary storage device 17. Hereinafter, each functional block will be described based on the functional blocks 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 an operation of the user of the mobile terminal 100. In addition, the search instruction | indication part 101 transmits the search object information for designating the subunit | mobile_unit terminal 150 which is a search object at the time of a search request | requirement. This search target information includes a MAC address that is information for specifying the slave terminal 150. Note that the information for specifying the slave device terminal 150 is not limited to the MAC address, but may be a terminal ID assigned to the slave device terminal 150.

  Moreover, the search instruction | indication part 101 is comprised so that it may be further an emergency search and the emergency search object information containing the search object and passkey depending on the degree of emergency. Upon receiving the emergency search target information, the mobile terminal 100 functioning as a request destination, when finding the slave terminal 150 to be searched, informs the slave terminal 150 of the location information of its own device at that time. On the other hand, the handset terminal 150 can be operated by direct access using a pass key by short-range wireless 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 108a). 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 may indicate that pairing is being performed without receiving the search request. 102 may be displayed.

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

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

  When the mobile terminal 100 functions as a request destination terminal, the communication unit 103 receives a search request, group information / emergency search target information, and the like from the server 200, and the short-range wireless communication unit 106 transmits the child request. The position information when the machine terminal 150 is found and the time information of the positioning are transmitted.

  The control unit 104 determines whether or not the MAC address of the child device terminal 150 acquired by the short-range wireless communication unit 106 matches the MAC address of the child device terminal 150 to be searched specified in the search request. Part. Here, the control unit 104 stores, in the group information table 108b, the group information that is received by the communication unit 103 and has the search flag added to the search target, 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 and time information acquired by the GPS positioning unit 107, and another mobile device that functions as a request source terminal via the communication unit 103. Transmit to the terminal 100. Note that there are various timings for acquiring position information by the GPS positioning unit 107 as described later.

  Further, the control unit 104 determines whether or not the MAC address of the slave terminal 150 acquired by the short-range wireless communication unit 106 matches the MAC address of the search target slave terminal 150 specified in the emergency search request. to decide. Here, the control unit 104 stores the emergency search target information indicated by 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 and time information acquired by the GPS positioning unit 107, and another mobile device that functions as a request source terminal via the communication unit 103. Transmit to the terminal 100.

  When the control unit 104 receives the search request or the emergency search request and determines that they match, the control unit 104 immediately stores the position information stored in the history table 108d (within a predetermined time, for example, within 5 minutes) and the like. You may make it transmit the time information which shows the positioning time to the other portable terminal 100 which functions as a request origin terminal via the communication part 103. FIG.

  When the control unit 104 determines that the MAC address of the child device terminal 150 that is an urgent search target matches, the processing execution unit 105 is a portion that directly performs an operation process on the child device terminal 150. The process execution unit 105 acquires a pass key for operating the slave terminal 150 from the server 200 prior to the operation process. Then, the handset terminal 150 is operated via the short-range wireless communication unit 106 using this passkey. For example, a message from the child device terminal 150 and a telephone number of the portable terminal 100 that is the parent device are acquired.

  The history management unit 105a instructs the GPS positioning unit 107 to perform position positioning at the timing at which the short-range wireless communication unit 106 acquires the MAC address of the child device terminal and every other predetermined timing. Then, the history management unit 105a stores the terminal ID and MAC address acquired by the short-range wireless communication unit 106 in association with the history table 108d of the management table 108 in association with the position information and the acquired time information. Let

  The short-range wireless communication unit 106 is a part that performs wireless communication with the handset terminal 150 by short-range wireless communication, and can perform communication using, for example, Bluetooth. When the handset terminal 150 enters the area, the short-range wireless communication unit 106 acquires the terminal ID and MAC address of the handset terminal. Then, by executing the pairing process using the terminal ID, the MAC address, and a predetermined pass key, it is possible to communicate with the slave terminal 150.

  The GPS positioning unit 107 is a part that performs position positioning using GPS at a predetermined timing. In addition to a predetermined timing, the GPS positioning unit 107 performs a positioning process to acquire position information when there is a predetermined position positioning instruction (such as a search request or an emergency search request). You may do it. The measured position information is stored in the history table 108d together with the MAC address of the slave terminal acquired by the short-range wireless communication unit 106 at that time and the time information indicating the time of positioning. In addition, it is not limited to GPS positioning, You may make it acquire the approximate position information using the base station of a mobile communication network or a wifi network.

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

  FIG. 4A shows the own terminal information table 108a, which shows information on the portable terminal 100 functioning as a request source terminal. This own terminal information table 108a includes a mode state as a base unit (base unit state: indicating that pairing is in progress here), a MAC address (slave unit MAC) of the slave unit terminal 150, a pass key (for Bluetooth communication). ) And operations that can be performed with the handset terminal 150 are described in association with each other. In addition, as a mode state, mode I is stored when it is in a pairing state with the slave terminal 150, and mode II is stored when it is in a non-pairing state, and is being searched. In this case, mode III is stored, and when searching is highly urgent (searching), mode IV is stored.

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

  FIG. 4B shows the group information table 108b. The group information table 108b describes a combination of the mobile terminal 100 and the child device terminal 150 that belong 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 unit can be used to identify the child device terminal 150 to be searched.

  FIG. 4C shows the emergency information table 108c. This emergency information table 108c describes the MAC address of the child device terminal 150 to be searched when an emergency search request is made in the mobile terminal 100 functioning as a request destination terminal. Although not shown, the pass key may be stored together.

  FIG. 4D shows the history table 108d. The MAC address of each child device terminal 150 acquired by the short-range wireless communication unit 106 is a part that stores the positional information of the mobile terminal 100 and the time information in association with the acquired MAC address. In the history table 108d, MAC addresses and position information thereof are stored in time series according to the acquired time. For example, MAC addresses acquired within the past 24 hours are stored.

  With this configuration, when functioning as a request source terminal, the mobile terminal 100 makes a search request to the server 200 and displays the position of the slave terminal 150 and its time in response to the search request. Can do. Further, when functioning as a request destination terminal, the mobile terminal 100 performs a search process for the slave terminal 150 to be searched based on a search request from another mobile terminal 100.

  Next, the server 200 will be described. FIG. 5 is a block diagram illustrating a functional configuration of the server 200. 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). The server 200 is also realized by a computer system having hardware such as a CPU, a RAM, and a ROM, as in the portable terminal 100 as shown in FIG.

  The communication unit 201 receives its own terminal information from each portable terminal 100 to generate group information, or requests a search from the portable terminal 100 functioning as a requesting terminal (with the terminal ID of the portable terminal 100 and its search target). (Including a terminal ID indicating a certain handset terminal 150). Further, it is a part that transmits group information for requesting the search process to the portable terminal 100 functioning as the request destination terminal by broadcasting.

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

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

  The search instruction processing unit 204 is a part that assigns a search flag to the group information stored in the management table 203 based on the search request received by the communication unit 201. And the search instruction | indication process part 204 transmits group information with the search request | requirement via the communication part 201 with respect to the portable terminal 100 of the group containing the MAC address with which the search flag was matched.

  And the search instruction | indication process part 204 will receive the response (position information and position information which show the position of the subunit | mobile_unit terminal 150) with respect to a search request from the portable terminal 100 which functions as a request destination terminal via the communication part 201, The position information and time information are transmitted to the portable terminal 100 functioning as a request source terminal. Thereafter, the search instruction processing unit 204 deletes the search flag in the group information stored in the management table 203.

  In addition, when the search instruction processing unit 204 receives 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, the search instruction processing unit 204 informs the communication unit 201 that it could not be found if the location information of the child device terminal 150 is not received within a predetermined time from the portable terminal 100 functioning as the request destination terminal. To the mobile terminal 100 functioning as the request source terminal.

  As described above, the server 200 generates group information based on information from the portable terminal 100 functioning as a request source terminal, and when receiving a search request for the slave terminal, adds a search flag to the group information, Then, the group information is transmitted to the mobile terminal 100 functioning as a request destination terminal. In addition, when a mobile device 100 is found from the mobile terminal 100 functioning as a request destination terminal, the location information and time information are received and transmitted to the mobile terminal 100 functioning as a request source terminal.

  Next, a location management method using the mobile 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 when the portable terminal 100 is turned on to when the terminal ID is scanned.

  First, when the mobile terminal 100 is turned on, an access process is performed on the mobile communication network, and the communication unit 103 receives an emergency search request and emergency search target information from the server 200. It is stored in the emergency information table 108c (S101). In response 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, the group information is transmitted from the server 200 and described in the group information table 108b in the management table 108 (S103).

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

  Next, the control unit 104 determines whether or not there is a slave terminal 150 that has a search flag in the group information table 108b (S104). 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, it is conceivable to increase the scan frequency (to shorten the scan interval) in order to make it advantageous to search the slave terminal 150.

  After various setting processes from such an initial state, a first scan process (MAC address acquisition process) by the short-range wireless communication unit 106 (Bluetooth) is performed (S107). Here, the history management unit 105a adds the MAC address of the slave terminal 150 discovered by this scan to the history table 108d (S108). Note that when the MAC address of the child device terminal 150 is acquired by the scanning process, 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 108d together with the MAC address.

  After the description of the history table 108d, the control unit 104 determines whether or not 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 that is the positioning time are transmitted to the server 200. In addition, the process execution unit 105 executes a predetermined operation process for the found child device terminal 150 (S110).

  Further, the control unit 104 determines whether or not the found MAC address matches the MAC address associated with the search flag in the group information table 108b (S111). Here, if it is determined that they match, a predetermined process B is executed (S112). These processes A and B will be described with reference to FIG.

  Next, the control unit 104 determines whether or not the discovered MAC address exists in the own terminal information table 108a (S113). Here, if it is determined that it exists, the short-range wireless communication unit 106 performs pairing processing for the child device terminal 150, and at the same time, the control unit 104 sets the parent device state of the own terminal information table 108 a to mode I. It is set (S114).

  Thereafter, the Bluetooth (BT) scan process shown in S107 to S112 is performed for each predetermined scan frequency (S115). Thereafter, the control unit 104 determines whether or not the handset terminal 150 is being paired by the short-range wireless communication unit 106 (S116). Here, if pairing is in progress, the process returns to S115, and after waiting for a predetermined time, the BT scan processing is performed and is repeatedly executed. On the other hand, if it is determined that the handset terminal 150 is not being paired by the short-range wireless communication unit 106, process C by the process execution unit 105 is executed (S120). This process C indicates that an alert to the effect that pairing with the handset terminal 150 is removed is displayed on the display unit 102.

  On the other hand, when the control unit 104 determines in S113 that the MAC address discovered by the short-range wireless communication unit 106 does not exist in the own terminal information table 108a (S113: No), the control unit 104 determines the own terminal information table. The parent machine state of 108a is set to mode III (S117). Then, BT scan processing (S107 to S112) is performed for each predetermined scan frequency (S118). Here, if the discovered MAC address is present in the own terminal information table 108a, the BT scan is executed after waiting for a predetermined time until it is determined by the control unit 104 (S119) (S119: No). ). On the other hand, if the discovered 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 way, the mobile terminal 100 can function as a request destination terminal based on the initial setting when the power is turned on, and performs a search process of the slave terminal 150 according to 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 will be described. FIG. 8A is a flowchart showing the process A. As shown in FIG. 8A, first, in the mobile terminal 100, when it is determined that the MAC address scanned by the short-range wireless communication unit 106 exists in the emergency information table 108c, the process execution unit 105 executes the emergency information. The server 200 is inquired of the pass key of the slave terminal 150 represented by the MAC address described in the table 108c (S110a).

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

  In the portable terminal 100, when the pass key is acquired by the process execution unit 105, the short-range wireless communication unit 106 accesses the slave terminal 150 using the pass key (S110b). Then, a predetermined operation is executed (S110c). For example, processing such as acquisition of the telephone number of the portable terminal 100 that is the parent device, acquisition and transmission of a message, and other calls are performed. Then, while performing the operation, the control unit 104 reads the position information and time information described in the history table 108d, and transmits them to the server 200 by the communication unit 103 (S110d).

  The server 200 receives the position information and time information transmitted from the mobile terminal 100, and the position information and time information are transmitted to another mobile terminal 100 that has made an emergency search request (S110f). Here, the mobile terminal 100 that has made the emergency search request is specified based on the group information.

  Then, the received location information and time information are displayed on the other portable terminal 100 that has issued the emergency search request (S110g). It should be noted that the fact that the default operation performed in S110c has been performed (or that effect if it could not be performed) may also be received and displayed.

  FIG. 8A shows a process in which the portable terminal 100 functioning as a request destination terminal automatically issues a passkey payout request, but the present invention is not limited to this. For example, the mobile terminal 100 that functions as a request destination terminal may inquire of the mobile terminal 100 that functions as a request source terminal via the server 200 whether or not to perform a default operation. In that case, the mobile terminal 100 functioning as the request source terminal displays whether or not to allow the user to perform a default operation. When the user selects the default operation, the mobile terminal 100 performs the passkey request destination terminal. The payout is instructed to the server 200.

  Next, the process B will be described. FIG. 8B is a flowchart showing the process B. As shown in FIG. 8B, in the portable terminal 100, when it is determined that the MAC address scanned by the short-range wireless communication unit 106 has been assigned a search flag in the group information table 108b, the control unit The position information and 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 time information transmitted from the mobile terminal 100, and the position information and time information are transmitted to another mobile terminal 100 that has made an emergency 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 a request destination terminal, the position information and the time information are received and notified to the user (S112y).

  Next, 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 handset terminal 150 has been removed (S120). On the other hand, in the handset device 150, a message that the pairing state with the mobile device 100 serving as the base device has been removed is displayed (S120x).

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

  FIG. 9 is a flowchart illustrating processing of the mobile terminal 100 functioning as a request destination that has received a search request from another mobile terminal. First, when the communication unit 201 receives a search request and group information that 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. Since the group information is received and updated again, not only the search flag but also when another mobile terminal is newly added to the group information, the record of the other mobile terminal is included in the group information. It may be given to.

  Then, under the control of the control unit 104, scanning processing by the short-range wireless communication unit 106 is performed (S202), and a history table 108d in which the MAC addresses of the child device terminals 150 discovered by scanning are listed is generated, Alternatively, new history information is added to the history table 108d (S203). The interval of this scanning process may be performed in a predetermined cycle, or may be a cycle according to the moving speed of the mobile terminal 100. For example, when the moving speed is high, shortening the cycle is effective in searching for the handset terminal 150.

  After the history table 108d is generated, the control unit 104 determines whether or not the MAC address of the search flag in the group information table 108b matches the MAC address actually obtained by scanning (S204). Since the MAC address obtained by the actual 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, the processing based on the temporarily held MAC address may be performed without immediately registering the scanned MAC address in the history table 108d.

  If it is determined that they do not match, the control unit 104 determines whether or not 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 the history table 108d does not exist, it is determined that there is no slave terminal 150 to be searched, and the process ends.

  In S204 or S205, when the control unit 104 determines that the MAC address to which the group information search flag is assigned matches the MAC address obtained by scanning or is described in the history table 108d. Process B is executed (S206). The process B is a process in which the position information and the time information thereof 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 to refer to the history table 108d, and this point is greatly different.

  Next, FIG. 10 will be described. FIG. 10 is a flowchart showing a process of the mobile terminal 100 functioning as a request destination that has received an emergency search request from another mobile terminal. The process in FIG. 9 is a normal search request, whereas FIG. The processing is different in that it is a search request in an emergency.

  First, when the emergency search request and the emergency search target information are received from the server 200 by the communication unit 201, the emergency information table 108c is updated by the control unit 104 (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, a scanning process is performed by the short-range wireless communication unit 106 (S212), and a history table 108d in which the MAC addresses of the slave terminal 150 discovered by scanning is listed is generated, Alternatively, new history information is added to the history table 108d (S213).

  After the generation of the history table 108d, the control unit 104 determines whether or not the MAC address of the emergency information table 108c matches the MAC address obtained by scanning (S214). As described above, the MAC address obtained by the actual scan is added to the history table 108d after the scan. As a result, the judgment process can be performed by referring to the history table 108d. Made. However, the processing based on the temporarily held MAC address may be performed without immediately registering the scanned MAC address in the history table 108d.

  Here, if it is determined that they do not match, the control unit 104 determines whether or not the MAC address of the emergency information table 108c is described in the history table 108d (S215). Here, if it is determined that it is not 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.

  In S214 or S215, when the control unit 104 determines that the emergency search target information matches the MAC address obtained by scanning or is described in the history table 108d, processing A is executed (S216). ). In the process A, as shown in FIG. 8A, the pass key is obtained, and using this pass key, the portable terminal 100 functioning as a request destination operates the slave terminal 150, and further, the position information and its time Information is a process in which information is transmitted to the server 200.

  In the history table 108d, when the MAC address is not the most recently described MAC address, it is not the MAC address that was actually scanned, and communication by the short-range wireless communication unit 106 cannot be performed. Therefore, in that case, the position information described in the history table 108d and the time information thereof are transmitted without executing the operation by the short-range wireless communication unit 106.

  Next, the operation of the mobile terminal 100 that functions as a request source terminal will be described. FIG. 11 is a flowchart illustrating processing of the mobile terminal 100 that makes a search request to another mobile 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 parent device state in the own terminal information table 108a of the management table 108 is changed to mode III (S302). Then, the search target information is transmitted by the communication unit 103. The search target information includes information for specifying the slave terminal 150 (S303).

  Note that the MAC address of the child device terminal 150 that is the search target may be transmitted as information for specifying the child device terminal 150, or instead, the terminal of the portable terminal 100 that is the parent device. The ID or other information that can specify the child device terminal 150 may be used.

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

  In response to this inquiry process, when position information and time information of the slave terminal 150 to be searched are received from the server 200, it is controlled whether or not the position information and time information are current information. The determination is made by the unit 104 (S305). Whether the current information is present can be determined from the time information. If it is determined that the information is not current information, the control unit 104 determines whether the information is in the history table 108d (S306).

  In S305 or S306, when the position information and time information of the slave terminal 150 to be searched are received via the communication unit 103, the search instruction unit 101 displays the position information and time information on the display unit 102. Processing is performed (S307). Here, when the current position information cannot be received, the past position information is received. However, the present position information and the past position information are determined in advance without being limited thereto. You may make it receive for a period.

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

  In the server 200 that has received the end instruction, the control unit 202 deletes the search flag in the group information of the management table 203. Whether or not the search is ended is determined by whether or not the user of the portable terminal 100 functioning as the requesting terminal performs an end operation. However, the present invention is not limited to this, and position information or the like by S309 is displayed. When it is done, it may be terminated. Alternatively, the process may be terminated only when the current position information is received (excluded when past information is received).

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

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

  After the emergency search target information is transmitted by the communication unit 103, an emergency search request is transmitted to the server 200, and an inquiry process is performed (S314).

  In response to this inquiry process, when position information and time information of the slave terminal 150 to be searched are received from the server 200, it is controlled whether or not the position information and time information are current information. The determination is made by the unit 104 (S315). Whether the current information is present can be determined from the time information. If it is determined that the information is not current information, the control unit 104 determines whether the information is in the history table 108d (S316).

  In S315 or S316, when the location information and time information of the slave terminal 150 to be an emergency search target are received via the communication unit 103, the search instruction unit 101 displays the location information and time information on the display unit 102. Display processing is performed (S317). Here, when the current position information cannot be received, the past position information is received. However, the present position information and the past position information are determined in advance without being limited thereto. You may make it receive for a period. In addition to the position information and time information, when an operation result is transmitted from the mobile terminal 100 functioning as the request destination terminal, the display unit 102 can also display the operation result.

  If the position information and the time information are not received in S315 or S316, the search instruction unit 101 determines the end of the search (S318). If it is determined that the search is not ended, the process returns to S314, and again Inquiry processing for the server 200 is performed. If the search instruction unit 101 determines that the search has 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 deleted.

  Whether or not the search is ended is determined by whether or not the user of the mobile terminal 100 functioning as the requesting terminal performs an end operation. However, the present invention is not limited to this, and position information or the like by S319 is displayed. When it is done, it may be terminated. Alternatively, the process may be terminated only when the current position information is received (excluded when past information is received). Furthermore, the search process may be terminated only when information indicating that a predetermined operation has been executed is received.

  Here, the display process of the position information / time information in the above-described process 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 processing shown in FIG. Further, it is assumed that a plurality of pieces of position information including the current position information and time information corresponding thereto are received in the processes S315 and S316.

  When the communication unit 103 receives the location information and time information of the slave terminal 150 that is the search target, the route estimation unit receives the search history stored in the history table 108d, the received location information, and time information. Is compared (S317a). Then, the location information and time information that are not stored in the history table 108d are extracted by the route estimation unit (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 a request destination terminal, but also stores information on its own child device terminal. doing. Then, position information and time information as shown in FIG. 26 are transmitted from each portable terminal 100 functioning as a request destination terminal via the server 200, and stored in the position table and history table 108d. By contrasting with the search history, unnecessary information can be eliminated by selecting only the position information after a certain time other than the search history stored in the history table 108d. In the example of FIG. 26, when the emergency search target is 01: 02: 03: 04: 01: AA, the position information is already stored in the history table 108d at 15:00, so AM9: 20 The position information is not used for route estimation and is excluded. Only position information after 15:00 is used.

  Next, map information is read from the database by the route estimation unit. This database may be stored in the terminal or may be stored in a site on the network. Then, a mark is plotted at a 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 (S317d). As an estimation method here, for example, a method of searching for a path that forms the shortest path connecting the plotted positions can be considered. Then, the estimated movement route is displayed on the display unit 102 (S317e). Since there may be a plurality of shortest paths, in that case, a plurality of movement paths may be displayed. In addition, since the time between the position information is known, the approximate 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. 27A shows the plotted positions based on the position information. Here, the points P11, P12, P13 and P14 are shown together with the search time. FIG. 27B shows a travel route estimated based on position information / time information. By connecting the points P11 and P12, P12 and P13, etc., a general movement route can be estimated. In the example of FIG. 27B, the dotted line indicates movement by foot and the solid line indicates movement by car.

  Next, the operation of the server 200 will be described. FIG. 13 is a flowchart showing the processing of the server 200 that has received the search request. In server 200, when search target information and a search request are received from mobile terminal 100 functioning as a request source terminal by communication unit 201 (S401), it is for specifying slave unit terminal 150 specified in the search target information. According to the information, the search instruction processing unit 204 gives a search flag to the MAC address of the corresponding child device 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 assigned to the plurality of portable terminals 100 associated with the group information (S402).

  When a response to the transmission of the group information to which the search flag is given is transmitted from the mobile terminal 100 in the group within a predetermined time (S403), the search instruction processing unit 204 executes process B (S406). . Note that the process B is the process shown in FIG. Then, when the process B is finished and it is determined that the search is finished, the communication unit 201 broadcasts again the group information from which the search flag has been deleted to the mobile terminals 100 in the same group. (S407). In the mobile terminal 100 that has received this group information, an overwrite process is performed with the group information from which the search flag has been deleted, and the search process ends.

  On the other hand, in S403, if a response to the transmission of the group information is not transmitted from the mobile terminal 100 in the group within a predetermined time (S403), a search request is issued by the communication unit 201 under the control of the search instruction processing unit 204. Response information indicating failure in discovery is transmitted to the mobile terminal 100 functioning as the requesting terminal that has performed (S404). When the search continuation request is not received again from the mobile terminal 100, the search flag is deleted from the group information in the management table 203 by the communication unit 201. Then, the group information from which the search flag has been deleted is broadcast again to the mobile terminals 100 in the same group (S407). When a search continuation request is received, an instruction for ending the search is not issued, and a waiting state is entered.

  Here, in FIG. 9, as shown in S204 and S205 which are notification processes of the slave terminal 150, since past history information (see FIG. 4D) is also a notification target, The plurality of functioning mobile terminals 100 transmit the position information and time information of the slave terminal 150 found at present or in the past to the server 200. In that case, the server 200 receives the position information and time information of the child device terminal 150 to be searched from the mobile terminal 100 functioning as a plurality of request destination terminals (S403). Then, the position information and time information are transmitted to the mobile 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 travel route by plotting the map information based on the location information and time information of the slave device terminal 150 transmitted from the server 200, As described above, the server 200 generates map information in which the travel route generated based on the position information and time information is plotted in the server 200, and the mobile terminal functions as the request source terminal. 100 may be notified.

  Similarly, the emergency search process in the server 200 will be described. FIG. 14 is a flowchart showing processing of the server 200 that receives the emergency search request. In the server 200, when the emergency search request and the emergency search target information are received by the communication unit 201 from the mobile terminal 100 functioning as the request source terminal (S411), the slave terminal 150 specified in the search target information is specified. The search instruction processing unit 204 adds a search flag to the MAC address of the slave device terminal 150 to be searched in the group information of the management table 203 according to the information for the search, and the default operation for the slave device terminal 150 The pass key for executing is stored.

  Then, the communication unit 201 broadcasts the emergency search target information and the emergency search request including the MAC address of the child device terminal 150 to which the search flag is given among the group information to the mobile terminals 100 in the group. (S412).

  When a response to the transmission of the emergency search request is transmitted from the mobile terminal 100 in the group within a predetermined time (S413), the search instruction processing unit 204 executes process A (S416). Note that the process A is the process shown in FIG. When it is determined that the process A is finished and the search is finished, the communication unit 201 broadcasts the emergency search target information from which the passkey has been deleted to the mobile terminals 100 in the same group again. (S417). In the mobile terminal 100 that has received this emergency search target information, an overwrite process is performed with the emergency search target information, and the search process is terminated.

  On the other hand, in S413, if a response to the transmission of the group information is not transmitted from the mobile terminal 100 in the group within a predetermined time (S413), the communication unit 201 controls the emergency search request under the control of the search instruction processing unit 204. Response information indicating that the discovery has failed is transmitted to the mobile terminal 100 functioning as the requesting terminal that has performed (S414). When the emergency search continuation request is not received again from the portable terminal 100, the search flag and the pass key are deleted from the group information in the management table 203 by the communication unit 201. Then, the group information from which the search flag and the pass key are deleted is broadcast again to the mobile terminals 100 in the same group (S417). When an emergency search continuation request is received, an instruction for termination is not issued, and a standby state is entered. In the above description, the processing in the same group is assumed as the transmission destination of the emergency search request. However, the emergency search request may be made including the mobile terminals 100 outside the group. In addition, as in the case of the above-described normal search request, the server 200 may perform an estimation process such as a moving route.

  Next, processing of the slave terminal 150 will be described. FIG. 15 is a flowchart showing processing of the slave terminal 150. The slave terminal 150 is a terminal that can execute communication by Bluetooth. First, it stands by in the searched mode by Bluetooth communication (S501). When receiving a pairing request from the portable terminal 100 for 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 canceled, the mode again shifts to the searched mode by Bluetooth communication.

  On the other hand, when a pairing request is received from a portable terminal 100 for which no combination is set as the parent device, that is, when a pairing request is received from the portable terminal 100 functioning as the request destination terminal, pairing is performed from the portable terminal 100. And execute a predetermined operation according to the request from the portable terminal 100 (S504). For example, in the mobile terminal 100 functioning as a request destination terminal (for example, the base unit A), the default operation is to sound the alarm of the handset terminal 150 and acquire the telephone number of the handset terminal 150 as preset operations. Run as. Further, the slave terminal 150 may store a facial photograph of the user holding the slave terminal 150 and send it to the portable terminal 100 functioning as a request destination terminal as a default operation. Furthermore, when performing Bluetooth communication, a rough distance can be known from the signal strength. Therefore, the mobile terminal 100 functioning as the request destination terminal may calculate the distance to the handset terminal 150 and display it in addition to the above-described processing as the default operation.

  Note that the mobile terminal 100 functioning as a request destination terminal without setting a predetermined operation (for example, the base unit G in FIG. 23) performs pairing processing with the mobile unit terminal 150, and then You may make it recognize a function. For example, when the handset device 150 has a Bluetooth communication function, the mobile terminal 100 can obtain an available profile from the handset device 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 or the like). For example, it is possible to appropriately determine whether to sound an alarm or to obtain a telephone number of the parent device of the child device terminal 150 registered in advance. In order to perform such specific processing, it is necessary to acquire a passkey from the server 200 (see processing A in FIG. 8A).

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

  Next, a processing sequence between the mobile terminal 100 and the server 200 will be described. FIG. 16 is a sequence diagram illustrating processing when the mobile terminal 100 is turned on. In the portable terminal 100, when the power is turned on by a user operation (S601), an emergency search request and emergency search target information are requested to the server 20 based on 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). In the server 200, group information is generated based on the transmitted own terminal information and stored in the management table 203 (S605). And the produced | generated group information is transmitted to the portable terminal 100 which 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). When these predetermined initial settings are completed, the first scan after power-on is performed by the short-range wireless communication unit 106 (S608). When the slave terminal 150 is scanned, processing 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 108c, the process A is executed. In the case of the slave terminal 150 stored in the group information table 108b, process B is executed. Further, in the case of the child device terminal 150 stored in the own terminal information table 108a (that is, own child device), pairing processing is executed.

  Next, a processing sequence when a search request is made by a user operation will be described. FIG. 17 is a sequence diagram showing the processing. First, a search request is transmitted from the mobile terminal 100 functioning as a request source terminal (S701). In the server 200, a group information search flag is assigned based on the search request (S702). In the server 200, group information to which a search flag is added and a search request are transmitted by broadcast to the mobile terminals 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-range wireless communication unit 106 performs a scanning process (S704), and searches for the slave terminal are performed. Done. Here, when one or some of the plurality of portable terminals 100 that have received the search request finds the slave terminal 150 that is the search target, the position information and time information at that time are acquired. Then, the position information is transmitted to the server 200 (S705), and is transmitted to the portable terminal 100 functioning as the request source terminal (S706).

  Next, the emergency search process 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, based on the emergency search request, a group information search flag is given and a passkey is stored (S712). This pass key is information necessary for operating the handset terminal 150 and is included in the emergency search request. In the server 200, the emergency search target information and the emergency search request are transmitted by broadcast to the mobile terminals 100 grouped by the group information (S713).

  In the portable terminal 100 functioning as a request destination terminal, the short-range wireless communication unit 106 performs a scanning process (S714), and a search for the slave terminal is performed. Here, when the slave terminal 150 that is an emergency search target is found, the found portable terminal 100 performs a passkey acquisition process on the server 200 (S715). Then, in the mobile terminal 100, a pairing process using a passkey is performed, and a predetermined operation is executed (S716). Further, the position information and time information at that time are acquired, the position information is transmitted to the server 200 (S717), and is transmitted to the mobile terminal 100 functioning as the requesting terminal (S718).

  Thus, 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.

  Next, a specific example of lost child management using the communication system including the mobile terminal 100 and the server 200 in the present embodiment will be described. FIG. 19 to FIG. 23 are explanatory diagrams showing state transitions when the parent device A that is the portable terminal 100 searches for the child device a that is the child device terminal 150. In each of these explanatory diagrams, it is assumed that the parent device A to the parent device F, which are the portable terminals 100, are configured in the same group. Further, the parent device A is associated with the child device a as the child device terminal 150.

  FIG. 19 is an explanatory diagram showing a state when the parent device A that is the portable terminal 100 and the child device a that is the child device terminal 150 are at home. As a premise, parent device A is held by the parent, and child device a is held by the child. In FIG. 19, it is assumed that the time is 3:00 pm. Since the parent device A and the child device a are at a certain distance, the parent device A and the child device a are in a pairing state. Note that an alert is set when the master unit A and the slave unit a are separated by a predetermined distance.

  FIG. 20 is an explanatory diagram showing that the parent device A is located at home and the child device a is located in a park. Here, 4:00 pm is assumed. 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 main device B is on the bus, and the bus passes in front of the park. At this time, the master unit B scans the MAC address of the slave unit a that is within the range of short-range wireless communication. Then, when the MAC positioning unit 107 scans the MAC address, the GPS positioning unit 107 acquires the position information and time information, and stores them in the management table 108 in association with the MAC address obtained by scanning. .

  FIG. 21 is an explanatory diagram showing that the parent device A is located at home and the child device a is away from the park. Here, 5:00 pm is assumed. When the base unit A transmits a search request, the server 200 sends group information in which a search flag is assigned to the base unit B to the base unit F in the group and the search unit and the search target slave unit a. Is sent by groupcast.

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

  FIG. 22 is an explanatory diagram showing that the parent device A is located at home and the child device a is within the scan range of the parent device F. Here, PM is set to 6:00. Here, the search request from the base unit A is continued, and when the search request is transmitted from the base unit A, the base unit F performs a scanning process. At that time, when the parent device F finds that the child device a is within the range of the short-range wireless communication, the parent device F notifies the parent device A of the position information and time information at that time via the server 200.

  FIG. 23 is an explanatory diagram showing a state when the child device a has gone out of the group range. Here, 7:00 pm is assumed. A parent (a user who holds the parent device A) whose child does not return even when late at night performs an operation of transmitting an emergency search request. Upon receiving the emergency search request, the server 200 sends an emergency search request to the mobile terminal 100 of all groups (including groups other than the group to which the parent device A belongs), and the emergency search target information (child information). (The MAC address of the machine a).

  As shown in FIG. 23, the child device “a” is discovered by the parent device “G” outside the group, and by performing a predetermined operation, the user of the child device “a” is lost, and the telephone number that is the contact information is set. It can be obtained from handset a. In this example, it can be assumed that there are a plurality of terminals functioning as the master unit. In such a case, the terminal that has previously established the Bluetooth communication by accessing the handset a can preferentially perform processing.

  FIG. 24 illustrates an example of a display screen of the portable terminal 100 that indicates that the moving route and the moving means are displayed. In FIG. 24, points P1, P2, P3, P4, and P5 are shown as movement routes of the slave terminal 150. For example, the slave terminal 150 is found at 3 o'clock at the point P1 and is found at 4 o'clock at the point P2. If the distance between P1 and P2 (the road part) is 2 km, it can be seen that the moving speed is 2 km / h, and the moving means at such a speed can be estimated to be walking. On the other hand, if the distance between the points P4 and P5 is 30 km, the moving speed is 30 km / h, and the moving means can be estimated to be an automobile or a train. In this screen example, the shortest distance road connecting points can be specified as a route, displayed so that it can be specified, and its moving means can be displayed. As a method for estimating the moving means, it is conceivable to use a correspondence table between the moving speed and the moving means.

  As described above, a network for searching for lost children can be constructed by using the portable terminal 100 that is generally held. By using this network, it is possible to know the position of the lost child or to know that it is a lost child.

  Next, operational effects of the communication system of the present embodiment will be described. The communication system according to the present embodiment includes a mobile terminal 100 that functions as a request destination terminal and a mobile terminal 100 that functions as a request source terminal.

  Then, the GPS positioning unit 107 in the mobile terminal 100 functioning as the request destination terminal acquires the position information at a predetermined timing, and the short-range wireless communication unit 106 periodically transmits the child information by short-range wireless communication. The MAC address which is information for specifying the machine terminal 150 is acquired.

  And the control part 104 receives the information (MAC address) for specifying the subunit | mobile_unit terminal which is the object of a search request from the portable terminal 100 which functions as a request origin terminal via the communication part 103 with a search request, It is determined whether or not the MAC address matches information (MAC address) for specifying the slave terminal acquired by the short-range wireless communication unit 106.

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

  Thereby, even if the position of the mobile terminal 100 that functions as the request destination terminal is not fixed in advance, the position information of the mobile terminal 100 (for example, the parent device F) that functions as the request destination terminal when the slave terminal 150 is discovered. Can be notified to the portable terminal 100 (for example, the parent device A) functioning as the requesting terminal. Therefore, it is not necessary to construct a network for searching for the handset terminal 150, and it can be easily applied to a mobile device such as a portable terminal.

  Further, in the mobile terminal 100 functioning as a request source terminal in this communication system, the search instruction unit 101 is a request destination terminal belonging to the same group as the mobile terminal 100 functioning as the request source terminal (for example, the parent device A). 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 In each of the mobile terminals 100 that function as request destination terminals, the control unit 104 performs a determination process based on the MAC address that is the search target received via the communication unit 103. Thereby, it is possible to request the mobile terminal 100 functioning as the request destination terminal of the same group to search for the slave unit.

  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 do. As a result, not only the location information is notified, but also the child device terminal 150 can perform a predetermined operation, and a more appropriate response can be performed. For example, by sounding an alarm or the like, the user of the mobile terminal 100 that functions as a request destination terminal can discover the search target as follows.

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

  Here, the MAC address acquisition cycle by the short-range wireless communication unit 106 and the position information acquisition cycle by the GPS positioning unit 107 may be made the same to each other, or the GPS positioning unit The MAC address may be acquired in accordance with the acquisition timing 107. Conversely, the GPS positioning unit 107 may acquire position information in accordance with the MAC address acquisition timing.

  If the control unit 104 determines that the MAC address acquired by the short-range wireless communication unit 106 does not match the MAC address specified in the search request, the control unit 104 further stores the MAC address in the history table 108d. It is judged whether it is done. If the control unit 104 determines that it is stored in the history table 108d, the communication unit 103 is associated with the MAC address of the slave terminal that is the search target stored in the history table 108d. The position information and the time information are transmitted to the mobile terminal 100 functioning as the request source terminal.

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

  The communication system may further include a server 200 that manages the mobile terminal 100 that functions as a request source terminal and the mobile terminal 100 that functions as a request destination terminal. When this server 200 receives a search request from the mobile terminal 100 that functions as a request source terminal, the server 200 can make a search request to the mobile terminal 100 that functions as a request destination terminal.

  Further, the server 200 includes a management table 203 that stores group information indicating the group configuration of each mobile terminal 100. Then, the search instruction processing unit 204 makes a search request to the mobile terminal 100 that functions as a request destination terminal based on the group information stored in the management table 203. As a result, a search request in units of groups can be easily performed.

DESCRIPTION OF SYMBOLS 100 ... Mobile terminal 101 ... Search instruction | indication part 102 ... Display part 103 ... Communication part 104 ... Control part 105 ... Processing execution part 105a ... History management part 106 ... Short-range wireless communication part 107 ... GPS positioning 108 ... Management table 108a ... Own terminal information table 108b ... Group information table 108c ... Emergency information table 108d ... History table 150 ... Slave 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 performs a search request for a slave terminal and a plurality of request destination terminals that receive a search request from the request source terminal are connected by wireless communication,
The requesting terminal is
Search request means for making a search request to the requested terminal;
A notification means for notifying a user of position information acquired from the request destination terminal as a response to the search request by the search request means;
Each of the requested terminals is
Position information acquisition means for acquiring position information of the request destination terminal;
Regularly, a handset information acquisition means for acquiring information for specifying a handset terminal by short-range wireless communication,
Receiving means for receiving from the request source terminal information for specifying a search request and a slave terminal to be searched;
Whether or not the information for specifying the child device terminal that is the target of the search request received by the receiving means matches the information for specifying the child device terminal acquired by the child device information acquiring means. A handset judgment means for judging;
When it is determined by the slave unit determining means that the information for specifying the slave unit terminal matches, the slave unit information acquiring unit acquires the information for specifying the slave unit terminal by the location information acquiring unit. Transmitting means for transmitting the location information that has been sent to the requesting terminal;
A communication system comprising: In the requesting terminal,
The search request means transmits search target information indicating a slave terminal that is a search target, together with a search request, to a request destination terminal belonging to the same group as the request source terminal,
In each of the request destination terminals,
The communication system according to claim 1, wherein the slave unit determination unit performs a determination process based on a slave unit terminal indicated by search target information. In each of the request destination terminals,
2. The apparatus according to claim 1, further comprising execution control means for controlling the slave terminal to execute a predetermined operation when the slave terminal determining means determines that the information specifying the slave terminal is identical. 2. The communication system according to 2. The requested terminal is
Storage means for storing information for identifying the child device terminal acquired by the child device information acquisition means in association with the position information acquired by the position information acquisition means and the time information indicating the acquired time; ,
With
The slave unit determining means determines whether or not information for specifying a slave terminal that is a target terminal of the search request is stored in the storage unit, and is determined to be stored in the storage unit In this case, the transmission means transmits position information and time information associated with information for specifying the slave terminal stored in the storage means to the request source terminal.
The communication system according to any one of claims 1 to 3. In a communication system further comprising a server for managing the request source terminal and the request destination terminal,
The server
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
Group information storage means for storing group information indicating the group configuration of the request source terminal and the request destination terminal;
The search processing means issues a search instruction to the request destination terminal based on the group information stored in the group information storage means;
The communication system according to claim 5. Position information acquisition means for acquiring the position information of the requested terminal;
Regularly, a handset information acquisition means for acquiring information for specifying a handset terminal by short-range wireless communication,
Receiving means for receiving from the request source terminal information for specifying the search request and the slave terminal to be searched;
Whether or not the information for specifying the child device terminal that is the target of the search request received by the receiving means matches the information for specifying the child device terminal acquired by the child device information acquiring means. A handset judgment means for judging;
When it is determined by the slave unit determining means that the information for specifying the slave unit terminal matches, the slave unit information acquiring unit acquires the information for specifying the slave unit terminal by the location information acquiring unit. Transmitting means for transmitting the location information that has been sent to the requesting terminal;
A mobile terminal comprising: In a communication method of a communication system in which a request source terminal that performs a search request for a slave terminal and a plurality of request destination terminals that receive a search request from the request source terminal are connected by wireless communication,
In the requesting terminal,
A search request step for making a search request to the request destination terminal;
A notification step of notifying a user of location information acquired from the requested terminal as a response to the search request by the search request step;
Is executed,
In each of the request destination terminals,
A location information acquisition step of acquiring location information of the request destination terminal;
Regularly, a handset information acquisition step of acquiring information for specifying a handset terminal by short-range wireless communication,
A receiving step for receiving, from the requesting terminal, information for specifying a search request and a slave terminal to be searched;
Whether or not 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 acquired in the child device information acquiring step. A handset judgment step for judging;
When it is determined that the information for specifying the slave device terminal matches in the slave device determination step, the location information acquisition step acquires the information for specifying the slave device terminal in the slave device information acquisition step. Transmitting the transmitted location information to the requesting terminal;
Location management method that is executed.

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