JP2011029920A - Portable terminal, system and program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To notify a user of a position of a second terminal even if the second terminal of a portable terminal which can be separated into a first terminal which can be connected to a mobile communication network, and the second terminal which performs communication using short range radio communication with the first terminal is left. <P>SOLUTION: The second terminal determines whether or not the second terminal is left behind and in a lost state on the basis of a prescribed rule when it is determined that an own device is in the lost state, and detects whether or not the other terminal is within a communication range using the short range radio communication. The second terminal requests to create position information which shows a position of the other terminal by transmitting loss information showing that itself is in the lost state to the other detected terminal. In addition, the second terminal requests to transmit the position information, and the loss information to a management server via the mobile communication network by transmitting the loss information. On the other hand, the first terminal outputs the position information received from the management server via the mobile communication network. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a mobile terminal device, a system, and a program.

  2. Description of the Related Art In recent years, portable terminals that can be separated into a parent device that can be connected to a mobile communication network and a child device that receives input of various operations are known (for example, see Patent Document 1). The separated parent device and child device communicate with each other via short-range wireless communication such as BT (Blue Tooth) and wireless LAN (Wireless Local Area Network).

  For example, when the slave unit receives an operation for connecting to the mobile communication network, the slave unit transmits the operation content to the master unit via short-range wireless communication. When the master device receives the operation content, it communicates with a mobile communication network such as 3G (3rd Generation) or GSM (Global System For Mobile Communications).

  Regarding such a separable portable terminal, one of the parent device or the child device may be left behind. Therefore, as a technique for preventing misplacement, a technique is known in which an alarm of a parent device is activated when the parent device and the child device are separated after a predetermined time (see, for example, Patent Document 2).

  Further, as a technique for preventing misplacement, a technique for driving an alarm function or a vibration function of a slave unit when the distance from the slave unit to the master unit is more than a certain distance is known (see, for example, Patent Document 3). ). Specifically, the slave unit identifies the distance from the master unit based on the strength of radio waves used in short-range wireless communication. Then, the slave unit drives the alarm function and the vibration function when the distance to the master unit is more than a certain distance.

  In addition, a technique is known that notifies a user of the position of a mobile terminal that is a mobile terminal that cannot be separated but has been misplaced (see, for example, Patent Document 4). Specifically, when a certain period of time has elapsed since the last operation, the mobile terminal makes a call to a telephone number of another terminal registered in advance. Then, when the mobile terminal detects a ring tone of another terminal, the mobile terminal recognizes that its own terminal is in the vicinity of the other terminal. Thereafter, the mobile terminal notifies a specific contact address registered in advance of the location recognized as having its own terminal.

JP 2002-152696 A JP 2007-5915 A JP 2003-87368 A JP 2007-243614 A

  However, with the above-described technology for activating the alarm of the parent device, the user is notified of the position of the remaining child device only by notifying that the parent device and the child device are separated after a predetermined time. There was a problem that I could not.

  Further, with the above-described technology for driving the alarm of the slave unit, it is not possible to notify the user of the position of the remaining slave unit only by notifying that the distance between the master unit and the slave unit is a certain distance or more. There was a problem.

  In addition, in the technology for notifying the user of the position of the mobile terminal described above, if a handset that cannot be connected to the mobile communication network is left, it cannot be sent to the telephone number of another terminal, so the handset is left. There was a problem that the position of the slave unit could not be notified to the user.

  The disclosed technology has been made in view of the above, and an object thereof is to notify a user of the position of a slave unit even when a slave unit that cannot be connected to a mobile communication network is left behind.

  The portable terminal device disclosed in the present application is a portable terminal that can be separated into a first terminal unit that can be connected to a mobile communication network and a second terminal unit that communicates with the first terminal unit using short-range wireless communication. . Further, the second terminal unit determines whether or not the own device is misplaced and lost based on a predetermined rule. In addition, when the second terminal unit determines that the own device is in a lost state, the second terminal unit uses short-range wireless communication to detect whether another terminal capable of the same short-range wireless communication is within the communication range. . The second terminal unit is information indicating the position of the other terminal by transmitting lost information indicating that the terminal is lost to the detected other terminal when the other terminal is detected. Request to create location information. Further, the second terminal unit transmits the lost information to the other terminal so as to transmit the location information created by the other terminal and the transmitted lost information to the management server via the mobile communication network. To request. Moreover, a 1st terminal part outputs the received positional information, when receiving positional information from a management server via a mobile communication network.

  According to one aspect of the mobile terminal device, system, and program disclosed in the present application, the user can be notified of the position of the child device even when the child device that cannot be connected to the mobile communication network is left behind.

FIG. 1 is an example of a block diagram for explaining the mobile terminal device according to the first embodiment. FIG. 2 is an example of a block diagram for explaining a system according to the second embodiment. FIG. 3A is a diagram illustrating an example of a loss notification reception availability inquiry message transmitted from the child device according to the second embodiment. FIG. 3B is a diagram illustrating an example of a loss notification reception availability response message returned from the parent device of another person according to the second embodiment. FIG. 3C is a diagram illustrating an example of a loss notification transmission request message for requesting transmission of a loss notification from the child device according to the second embodiment. FIG. 3D is a diagram illustrating an example of a lost child device discovery notification message transmitted from another parent device according to the second embodiment. FIG. 3E is a diagram illustrating an example of a message notified to the parent device according to the second embodiment. FIG. 4 is a sequence diagram for explaining an example of a process flow according to the second embodiment. FIG. 5 is a block diagram for explaining an example of a system according to the third embodiment. FIG. 6A is a schematic diagram illustrating an example of position measurement weighting information used by the system according to the third embodiment. FIG. 6B is a schematic diagram illustrating an example of position measurement used by the system according to the third embodiment. FIG. 7 is a sequence diagram for explaining an example of processing of the system according to the third embodiment. FIG. 8 is an example of a block diagram for explaining a system according to the fourth embodiment. FIG. 9 is an example of a diagram for explaining a handset control message according to the fourth embodiment. FIG. 10 is a sequence diagram for explaining an example of processing executed by the system according to the fourth embodiment. FIG. 11 is an example of a block diagram for explaining a system according to the fifth embodiment. FIG. 12 is a diagram illustrating an example of instructions displayed on the mobile terminal according to the fifth embodiment. FIG. 13 is a diagram for explaining an example of position measurement used by the system according to the fifth embodiment. FIG. 14 is a diagram illustrating a display example of search results displayed by the system according to the fifth embodiment. FIG. 15 is a sequence diagram for explaining an example of processing executed by the system according to the fifth embodiment. FIG. 16 is a diagram for explaining an example of a portable terminal that executes a program for transmitting lost information.

  Hereinafter, embodiments of a mobile terminal device, system, and program disclosed in the present application will be described in detail with reference to the drawings.

  In the following embodiments, the configuration of the mobile terminal device and the flow of processing will be described in order.

  First, the configuration of the mobile terminal device will be described with reference to FIG. FIG. 1 is an example of a block diagram for explaining a system according to the first embodiment. The mobile terminal device 10 can be separated into a first terminal unit 30 and a second terminal unit 20. As illustrated in FIG. 1, the second terminal unit 20 includes a determination unit 21, a detection unit 22, and a lost information transmission unit 24. The first terminal unit 30 has an output unit 35. The other portable terminal device includes a first terminal unit 50 of another terminal and a second terminal unit 80 of another terminal. The first terminal unit 50 of the other terminal includes a transmission unit 53 and a position information creation unit 52.

  The second terminal unit 80 of the other terminal performs near field communication with the second terminal unit 20. The other terminals mentioned here do not have to be limited to the same model as the portable terminal device 10 or the portable terminal device having the same function. If it is another portable terminal in which the same short-range communication as the lost second terminal unit 20 is possible and software for transferring information is incorporated, it is not a terminal in which the first terminal unit and the second terminal unit are separated. It is possible. In the present embodiment, the other terminals are separated type devices.

  The second terminal unit 20 and the first terminal unit 50 of another terminal communicate with each other using short-range wireless communication. In FIG. 1, the first terminal unit 50 of another terminal is supposed to have a transmission unit 53 and a location information creation unit 52, but the second terminal unit 80 of another terminal has a transmission unit 53 and a location information creation unit 52. You may make it have.

  The determination unit 21 determines whether the second terminal unit 20 is in a lost state, which is a misplaced state, based on a predetermined rule. The detection unit 22 detects other terminals using short-range wireless communication. For example, the detection unit 22 oscillates a short-range wireless connection request at regular time intervals. When the first terminal unit 50 of the other terminal receives the connection request and transmits a response to the connection request, the detection unit 22 detects the response. When the detection unit 22 detects the first terminal unit 50 of another terminal, the lost information transmission unit 24 transmits lost information indicating that the second terminal unit 20 is in a lost state, which is a misplaced state.

  In addition, the lost information transmitting unit 24 requests the other terminal to create position information that is information indicating the position of the other terminal by transmitting the lost information, and transmits the generated position information and the transmission information. The lost information is requested to be transmitted to the management server via the mobile communication network. In this embodiment, the loss information is transmitted after detecting another terminal. However, since there may be cases where communication is possible only for a short time using short-range wireless communication, the response request and the loss information are sent together. Also good.

  The first terminal unit 30 has an output unit 35. When receiving the position information from the management server via the mobile communication network, the output unit 35 outputs the received position information.

  When the location information creation unit 52 related to the first terminal unit of the other terminal is requested to transmit the lost information and the location information from the second terminal unit 20 of the mobile terminal device 10, Position information indicating the position of the terminal unit 50 is created. The transmission unit 53 transmits the lost information transmitted by the lost information transmission unit 24 and the location information created by the location information creation unit 52 to the management server via the mobile communication network.

  As described above, when it is determined that the second terminal unit 20 according to the first embodiment is in a lost state, the second terminal unit 20 detects the surrounding first terminal unit using short-range wireless communication. When the second terminal unit 20 detects the first terminal unit 50 of another terminal, the second terminal unit 20 transmits the lost information to the detected first terminal unit 50 of the other terminal using short-range wireless communication. Further, the second terminal unit 20 requests to create location information by transmitting lost information to other terminals, and transmits the created location information and the transmitted lost information via the mobile communication network. Request to send to the management server.

  When the first terminal unit 50 of another terminal is requested to transmit the created location information and the transmitted lost information to the management server via the mobile communication network, the first terminal unit 50 of the other terminal. The position information indicating the position of is created. Then, the first terminal unit 50 of the other terminal transmits the lost information and the position information to the management server via the mobile communication network. It is assumed that the lost information includes the mail address or telephone number of the mobile terminal device 10. The 1st terminal part 30 which concerns on the portable terminal device 10 shall display on the output part 35 of a 1st terminal part from the received loss information and position information.

  Therefore, the mobile terminal device according to the first embodiment notifies the first terminal unit 10 corresponding to the second terminal unit 20 of the position of the lost second terminal unit 20. As a result, the mobile terminal device can easily search for the lost second terminal unit 20.

  In the following embodiments, the configuration of the system and the flow of processing disclosed in the present application will be described in order.

[System configuration]
First, the configuration of the system will be described with reference to FIG. FIG. 2 is an example of a block diagram for explaining a system according to the second embodiment. As shown in FIG. 2, the system according to FIG. 2 includes a mobile terminal A 10a and a subscriber information management device 40a. Further, the system includes a third-party mobile terminal B50a different from the mobile terminal A10a.

  The mobile terminal A10a (mobile terminal device 10) is a mobile terminal that can be separated into a mobile terminal A slave unit 20a (second terminal unit 20) and a mobile terminal A base unit 30a (first terminal unit 30). The mobile terminal A10a is an information communication terminal such as a mobile phone, a PHS (Personal Handy-phone System), and a PDA (Personal Digital Assistant). The third-party mobile terminal B50a is an information communication terminal such as a mobile phone, PHS, PDA, and PC (Personal Computer).

  The portable terminal A slave device 20a communicates with the portable terminal A master device 30a by using short-range wireless communication such as BT (Blue Tooth) and wireless LAN (Wireless Local Area Network). The portable terminal A slave unit 20a is, for example, a part of the portable terminal A10a that has a numeric keypad of the portable terminal or a part that includes a device for inputting an operation of the portable terminal A10a. The mobile terminal A base unit 20a is, for example, a part of the mobile terminal A10a that includes an antenna and a display device for connection to a mobile communication network.

[Configuration of portable terminal A slave unit 20a]
The portable terminal A slave unit 20a includes a slave unit loss determination unit 21a (determination unit 21), a nearby terminal detection unit 22a (detection unit 22), a slave unit radio unit A23a, a loss notification transmission unit 24a (lost information transmission unit 24), and And a user interface unit 25a.

  The handset loss determination unit 21a, the nearby terminal detection unit 22a, and the loss notification transmission unit 24a are, for example, an integrated circuit such as an application specific integrated circuit (ASIC) or a field programmable gate array (FPGA), or a CPU (central processing unit). And an electronic circuit such as an MPU (Micro Processing Unit).

  The user interface unit 25a is an interface for operating the mobile terminal A10a. The user interface unit 25a is, for example, an input device such as a numeric keypad for operating the mobile terminal A10a.

  Further, the slave unit wireless unit A23a communicates with a communicable terminal existing in the vicinity via the short-range wireless technology. The subunit | mobile_unit radio | wireless part A23a is a short-distance radio | wireless apparatus which has an antenna, for example. Here, cordless handset radio part A23a uses techniques, such as BT and wireless LAN, as short-distance radio technology. In the second embodiment, communication is performed with a communicable terminal existing in the vicinity using a wireless LAN. In addition, the slave unit wireless unit A23a performs communication in the ad hoc mode.

  The handset loss determination unit 21a determines whether the mobile terminal A handset 20a is in a lost state. For example, when the mobile device A slave device 20a and the mobile device A master device 30a have contact terminals that communicate electrical signals with each other, the handset loss determination unit 21a is triggered by the loss of electrical signal communication. It is determined that the mobile terminal A10a has been separated. And the subunit | mobile_unit loss determination part 21a is the state in which the portable terminal A subunit | mobile_unit 20a is lost when the portable terminal A10a is isolate | separated and fixed time passes after the user interface part 25a accepts a user's operation. Judge that there is. Note that, when the handset loss determination unit 21a determines that the mobile terminal A10a is separated, the mobile terminal A10a is not physically connected to the mobile terminal A handset 20a for a certain period of time. In other words, there is no short-range communication, there is no response to the short-distance communication connection request from the mobile terminal A slave 20a, or the response is from another terminal. May be.

  When the mobile terminal loss determination unit 21a determines that the mobile terminal A handset 20a is in a lost state, the nearby terminal detection unit 22a can perform the same short-range wireless communication using short-range wireless communication. It is detected whether the terminal exists in a range where short-range wireless communication is possible. Specifically, the nearby terminal detection unit 22a oscillates a response request using a short-range wireless technology such as BT or wireless LAN, and receives a response to the oscillated response request. Detect mobile devices. Specifically, the nearby terminal detection unit 22a exists in the vicinity via the slave unit radio unit A23a when the slave unit loss determination unit 21a determines that the portable terminal A slave unit 20a is in a lost state. Detect terminals that can communicate.

  For example, the nearby terminal detection unit 22a causes the slave unit radio unit A23a to transmit radio waves at predetermined time intervals. Then, for example, when the handset radio unit A23a receives a response radio wave to the transmitted radio wave, the proximity terminal detection unit 22a detects that there is a terminal that can communicate in the vicinity.

  Specifically, the neighboring terminal detection unit 22a causes the slave unit radio unit A23a to repeatedly send a signal for establishing a connection with another terminal through a wireless LAN until a response is received from the other terminal. When the nearby terminal detection unit 22a receives a response to the signal transmitted from the slave unit radio unit A23a from another terminal, the neighboring terminal detection unit 22a detects that there is a communicable terminal in the vicinity.

  If the nearby terminal detection unit 22a detects another terminal with which the slave unit wireless unit A23a can communicate, the detected other terminal has a loss notification reception unit 54a via the slave unit wireless unit A23a. It is determined whether or not. Specifically, the nearby terminal detection unit 22a transmits a loss notification reception availability inquiry message illustrated in FIG. 3A to the detected terminal. Then, when the loss notification reception availability response message is returned from the terminal that has transmitted the loss notification reception availability inquiry message shown in FIG. 3B, the neighboring terminal detection unit 22a has the loss notification reception unit 54a. It is determined that

  Here, FIG. 3A is a diagram illustrating an example of a loss notification reception availability inquiry message transmitted from the child device according to the second embodiment. As shown in FIG. 3A, in the loss notification reception availability inquiry message, information “Type: 0x01” indicating the loss notification reception availability inquiry message is stored in the header portion. The loss notification reception availability inquiry message is transmitted without storing data in the data storage portion.

  When the other terminal that has acquired the loss notification reception availability inquiry message has the loss notification reception unit 54a, it transmits a loss notification reception availability response message shown in FIG. 3B to the portable terminal A slave device 20a. Here, FIG. 3B is a diagram illustrating an example of a loss notification reception availability response message returned from the parent device of another person according to the second embodiment. As shown in FIG. 3B, in the loss notification reception availability response message, information “Type: 0x02” indicating the loss notification reception availability response message is stored in the header portion. In addition, in the loss notification reception availability response message, 4 bytes of data “0x01” indicating that the loss notification can be received is stored in the data storage portion.

  When the nearby terminal detection unit 22a receives the loss notification reception availability response message, the communication terminal that has transmitted the loss notification reception availability response message has the loss notification reception unit 54a and can be connected to the mobile communication network. It is determined that the communication terminal is a secure communication terminal.

  The loss notification transmission unit 24a transmits information indicating that the mobile terminal A slave unit 20a is in a lost state via the short-range wireless communication when another communication terminal is detected by the nearby terminal detection unit 22a. . In addition, the loss notification transmission unit 24a requests other communication terminals to create information indicating the position of the other communication terminal by transmitting information indicating the loss state. In addition, the loss notification transmission unit 24a transmits information indicating that it is in a lost state to another communication terminal, so that the information indicating the position of the other communication terminal and the mobile terminal A slave device 20a are in a lost state. And requesting that the information indicating that the information be transmitted to the management server via the mobile communication network. Specifically, the loss notification transmission unit 24a creates the loss notification transmission request message shown in FIG. 3C and transmits the loss notification reception availability response message when the handset device A 23a receives the notification reception availability response message. Send to the terminal that did.

  Here, FIG. 3C is a diagram illustrating an example of a loss notification transmission request message for requesting transmission of a loss notification from the slave unit according to the second embodiment. As shown in FIG. 3C, the loss notification transmission request message stores information “Type: 0x03” indicating the loss notification transmission request message in the header portion. Further, in the loss notification transmission request message, “Length: 0” indicating that the following data does not exist is stored in the data length portion.

[Configuration of mobile terminal A main unit]
The portable terminal A base unit 30a includes a base unit radio unit A31a, a mobile communication network communication unit A33a, a slave unit loss registration unit 34a, and a user interface unit 35a (output unit 35). The handset loss registration unit 34a is, for example, an integrated circuit such as an ASIC or FPGA, or an electronic circuit such as a CPU or MPU.

  The mobile communication network communication unit A33a performs communication via a mobile communication network such as 3G (3rd Generation) or GSM (Global System For Mobile Communications). In addition, the mobile communication network communication unit A33a performs communication via a mobile communication network such as LTE (Long Term Evolution), WiMAX (Worldwide Interoperability for Microwave Access). The mobile communication network communication unit A33a is a communication device that has an antenna and is connected to the mobile communication network, for example. The base unit radio unit A31a communicates with the slave unit radio unit A23a via BT or a wireless LAN. The base radio unit A31a is a short-range radio device having an antenna, for example.

  When receiving the location information from the subscriber information management device 40a, the user interface unit 35a outputs the received location information. Specifically, when the user interface unit 35a receives a discovery message from the subscriber information management device 40a, the user interface unit 35a displays the discovery message and notifies the user of the location of the mobile terminal A slave unit 20a. In addition, the user interface unit 35a acquires an operation from the user and reflects it on the mobile terminal A10a. For example, when the user interface unit 35a receives a registration request for loss of the portable terminal A slave unit 20a from the user, the user interface unit 35a requests the slave unit loss registration unit 34a to perform loss registration. The user interface unit 35a is, for example, an input device such as a numeric keypad for operating the mobile terminal A10a.

  When the loss-of-handset registration unit 34a is requested by the user interface unit 35a to execute the registration of loss, the lost state of the portable terminal A handset 20a is transmitted to the subscriber information management device 40a via the mobile communication network communication unit A33a. Notify you to register. Specifically, the handset loss registration unit 34a stores the MAC address of the mobile terminal A handset 20a in advance, and sends the MAC address of the mobile terminal A handset 20a to the subscriber information management device 40a. The loss registration request for the portable terminal A slave 20a is transmitted.

[Configuration of third-party mobile terminal B]
Third-party mobile terminal B50a (first terminal unit 50 of another terminal) includes base unit radio unit B51a, positioning unit 52a (position information creating unit 52), mobile communication network communication unit B53a (transmitting unit 53), loss notification It has the receiving part 54a and the subunit | mobile_unit information transmission part 55a. The loss notification receiving unit 54a and the slave unit information transmitting unit 55a are, for example, an integrated circuit such as an ASIC or FPGA, or an electronic circuit such as a CPU or MPU.

  The base unit radio unit B51a communicates with the slave unit radio unit A23a using the short-range radio technology. Here, the base station radio unit B51a uses a technology such as BT or a wireless LAN as a short-range radio technology. Further, the base station radio unit B51a performs communication in an ad hoc mode, for example. The base radio unit B51a is a short-range radio device having an antenna, for example.

  The mobile communication network communication unit B53a performs communication via a mobile communication network such as 3G, GSM, LTE, or WiMAX. The mobile communication network communication unit B53a is a communication device that has an antenna and is connected to the mobile communication network, for example.

  When the third-party mobile terminal B50a receives the loss notification transmission request message transmitted from the mobile terminal A slave device 20a, the positioning unit 52a creates position information indicating the position of the third-party mobile terminal B50a. . Specifically, if the positioning unit 52a is requested by the slave unit information transmitting unit 55a to measure the position of the third-party mobile terminal B50a, the radio field intensity with the GPS or the base station of the mobile communication network Is used to determine the position of the third-party mobile terminal B50a. In addition, the positioning unit 52a notifies the slave device information transmitting unit 55a of the position of the third-party mobile terminal B50a that has been positioned as position information. The positioning unit 52a is a device that measures a position using, for example, a GPS (Global Positioning System).

  When the loss notification receiving unit 54a receives the loss notification reception availability inquiry message from the neighboring terminal detection unit 22a via the base unit radio unit B51a, the loss notification reception unit 54a creates a loss notification reception availability response message. Then, the loss notification receiving unit 54a transmits the created loss notification reception availability response message to the child device wireless unit A23a via the parent device wireless unit B51a. Further, when receiving the loss notification transmission request message, the loss notification receiving unit 54a acquires the MAC address of the mobile terminal A slave device 20a that has transmitted the loss notification transmission request message.

  Further, when the loss notification receiving unit 54a receives the loss notification transmission request message from the mobile terminal A slave unit 20a, the loss notification receiver 54a uses the radio field strength of the short-range wireless communication emitted by the mobile terminal A slave unit 20a. The distance between the machine 20a and a third-party mobile terminal B50a is measured. Then, the loss notification receiver 54a creates distance information indicating the distance between the measured mobile terminal A slave 20a and a third party mobile terminal B 50a.

  Specifically, the loss notification receiving unit 54a stores the radio wave intensity and the distance in association with each other in advance. Then, the loss notification receiving unit 54a calculates the distance between the mobile terminal A slave 20a and the mobile terminal B 50a using RSSI (Received Signal Strength Indicator). Here, RSSI refers to the value of the radio field intensity of short-range wireless communication emitted from the mobile terminal A slave 20a. Further, the loss notification receiving unit 54a notifies the slave unit information transmitting unit 55a of the calculated distance information indicating the distance between the portable terminals and the acquired MAC address of the portable terminal A slave unit 20a.

  When the third party mobile terminal B50a receives the lost information transmitted from the mobile terminal A slave 20a, the slave unit information transmission unit 55a receives the lost information and the third party mobile terminal B50a. Information indicating the position is transmitted to the management server. Specifically, when the distance information calculated by the loss notification receiving unit 54a and the MAC address of the mobile terminal A slave device 20a acquired by the loss notification receiving unit 54a are notified, the positioning unit 52a A request for positioning the position of the terminal B50a is notified. And the subunit | mobile_unit information transmission part 55a acquires the positional information measured by the positioning part 52a.

  The handset information transmission unit 55a stores the distance information notified from the loss notification receiving unit 54a and the MAC address of the mobile terminal A handset 20a in the lost handset discovery notification. Moreover, the subunit | mobile_unit information transmission part 55a stores the positional information notified from the positioning part 52a in a lost subunit | mobile_unit discovery notification. The handset information transmission unit 55a creates the lost handset discovery notification message shown in FIG. 3D using the distance information notified from the loss notification receiving unit 54a and the position information notified from the positioning unit 52a. FIG. 3D is a diagram illustrating an example of a lost child device discovery notification message transmitted from another parent device according to the second embodiment.

  In the case illustrated in FIG. 3D, the slave unit information transmission unit 55a stores “Type: 0x04” indicating the lost slave unit discovery notification message in the header portion of the lost slave unit discovery notification message. Further, the slave unit information transmitting unit 55a stores information “Length: 50” indicating that the following data length is 38 bytes in the data length portion following the header portion of the lost slave unit discovery notification message.

  Next, the slave unit information transmission unit 55a stores “Type: 0x11” indicating that the following data is a slave unit MAC address. Next, the slave unit information transmission unit 55a stores “Length: 6” indicating that the 6-byte data is a MAC address as the data length part. Next, the slave unit information transmission unit 55a stores the MAC address of the mobile terminal A slave unit 20a notified from the loss notification reception unit 54a in the lost slave unit discovery notification message.

  Next, handset information transmission unit 55a stores “Type: 0x12” indicating that the following data is followed by information indicating the distance between mobile terminal A handset 20a and third party mobile terminal B50a. . Next, the slave unit information transmission unit 55a stores “Length: 4” indicating that the data of 4 bytes is distance information as a data length part. Next, the slave unit information transmission unit 55a stores the distance information notified from the loss notification reception unit 54a in the lost slave unit discovery notification message.

  Next, the slave unit information transmission unit 55a stores “Type: 0x13” indicating that the following data is followed by the location information of the third-party mobile terminal B50a. Next, the slave unit information transmission unit 55a stores “Length: 4” indicating that the data of 4 bytes below is position information as the data length part. Next, the slave unit information transmission unit 55a stores the location information notified by the positioning unit 52a in the lost slave unit discovery notification message.

  Further, when creating the lost child device discovery notification message, the child device information transmission unit 55a transmits the message to the subscriber information management device 40a via the mobile communication network communication unit B53a.

[Configuration of subscriber information management device 40a]
The subscriber information management device 40a includes a mobile communication network communication unit 41a, a lost child device management unit 42a, and a child device position notification unit 43a. The lost child device management unit 42a and the child device position notification unit 43a are, for example, an integrated circuit such as an ASIC or FPGA, or an electronic circuit such as a CPU or MPU.

  The subscriber information management device 40a is a server located on, for example, a core network (main line network) of a mobile communication network. For example, the subscriber information management device 40a is connected to a base station and a network higher than MPE (Multimedia Processing Equipment) that processes information received by the base station, and connected to an LS (Local Switch) that is a circuit switch. Is done.

  The mobile communication network communication unit 41a communicates with the mobile communication network communication unit A33a, the mobile communication network communication unit B53a, and other mobile communication network communication units using mobile communication network communication methods such as 3G, GSM, LTE, and WiMAX. Do. The mobile communication network communication unit 41a is a communication device that has an antenna and is connected to the mobile communication network, for example.

  When the lost child device management unit 42a obtains the MAC address of the portable terminal A child device 20a and the notification requesting the loss registration of the portable terminal A child device 20a from the portable terminal A parent device 30a, the lost child device management unit 42a The lost registration of the slave unit 20a is executed. Specifically, the lost child device management unit 42a includes the MAC address of the portable terminal A child device 20a transmitted from the portable terminal A parent device 30a, and information indicating that the portable terminal A child device 20a is in a lost state. Are stored in association with each other.

  Further, when the lost child device management unit 42a acquires the lost child device discovery notification message from the third-party mobile terminal B50a, the lost child device management unit 42a responds to the parent device corresponding to the remaining child device indicated by the lost child device discovery notification message. Then, the location information stored in the lost handset discovery notification message is transferred. Specifically, the lost child device management unit 42a determines whether the same MAC address as the MAC address stored in the lost child device discovery notification message is stored in association with the information indicating that it is in a lost state. To do.

  When the MAC address stored in the lost child device discovery notification message is stored in association with the information indicating the lost state, the lost child device management unit 42a stores the lost child device discovery notification message. The distance information and the position information are notified to the handset position notification unit 43a. Further, the lost child device management unit 42a notifies the child device position notification unit 43a to transmit a discovery message to the parent device corresponding to the child device having the MAC address stored in the lost child device discovery notification message. To do.

  When notified to send a discovery message from the lost slave unit management unit 42a, the slave unit location notification unit 43a uses the notified distance information and location information to include an electronic message including the discovery message shown in FIG. 3E. Create an email. Here, FIG. 3E is a diagram illustrating an example of a message notified to the parent device according to the second embodiment.

  Specifically, handset position notification unit 43a creates a map near the location indicated in the notified position information. And the subunit | mobile_unit position notification part 43a superimposes the circle | round | yen which shows the range where the subunit | mobile_unit left behind exists from the notified positional infomation and distance information.

  For example, the slave unit position notification unit 43a creates a discovery message as shown in FIG. 3E. A circle shown on the left side of the center of FIG. 3E indicates a range where the mobile terminal A slave 20a obtained from the distance information and the position information exists. The center of the circle shown on the left side of the center of FIG. 3E is a point obtained from the position information, that is, the loss notification transmission request message transmitted from the mobile terminal A slave 20a is sent by the third party mobile terminal B50a. Indicates the received point. The range of the circle shown on the center left side of FIG. 3E is the range obtained from the distance information, that is, the mobile terminal A obtained from the distance between the mobile terminal A slave 20a and the third-party mobile terminal B 50a. The range in which the subunit | mobile_unit 20a exists is shown.

  When creating the discovery message, the slave unit position notification unit 43a transmits the discovery message as an e-mail to the mobile terminal A base unit 30a via the mobile communication network communication unit 41a.

[System processing]
Next, a processing flow of the system according to the second embodiment will be described with reference to FIG. FIG. 4 is a sequence diagram for explaining an example of a process flow according to the second embodiment. In the case illustrated in FIG. 4, the system uniquely identifies the child device using the MAC address.

  First, the flow of processing in which the portable terminal A base unit 30a performs loss registration will be described. When the lost terminal registration unit 34a of the portable terminal A parent device 30a is requested to register the lost child device via the user interface unit 25a (step S101), the MAC of the portable terminal A child device 20a is requested. An address is acquired (step S102). Next, the handset loss registration unit 34a of the mobile terminal A base unit 30a uses the mobile communication network communication unit A33a (step S103) to set the MAC address of the remaining mobile terminal A handset 20a to the subscriber information management device. The lost handset management unit 42a of 40a is notified (step S104). The lost child device management unit 42a of the subscriber information management device 40a stores the notified MAC address and information indicating that it has been lost in association with each other (step S105).

  Next, the process which shows the position where the portable terminal A subunit | mobile device 20a of the loss state which the system performs is left behind is demonstrated. First, the handset loss determination unit 21a of the mobile terminal A handset 20a determines whether the mobile terminal A handset 20a is in a lost state (step S106). Next, if the mobile terminal A slave unit 20a determines that the mobile terminal A slave unit 20a is in a lost state, the neighboring terminal detection unit 22a of the mobile terminal A slave unit 20a passes the slave unit radio unit A23a. Then, another communicable terminal existing in the vicinity is detected (step S107).

  The nearby terminal detection unit 22a of the portable terminal A slave unit 20a repeats the detection until it detects another connectable terminal via the slave unit radio unit A23a (step S108). Next, when the neighboring terminal detection unit 22a of the portable terminal A slave unit 20a detects another connectable device via the slave unit radio unit A23a, the loss notification reception availability inquiry message is transmitted to the terminal from which the loss notification reception availability inquiry message is detected. Transmit (step S109). Then, the loss notification receiving unit 54a of the third-party mobile terminal B 50a creates a loss notification reception availability response message (step S110).

  Next, the loss notification receiving unit 54a of the third-party mobile terminal B50a sends the created loss notification reception availability response message to the mobile terminal A slave 20a via the master radio unit B51a and the slave radio unit A23a. To the nearby terminal detection unit 22a (step S111).

  When the proximity terminal detection unit 22a of the portable terminal A slave unit 20a acquires the loss notification reception availability response message, the proximity terminal detection unit 22a notifies the loss notification transmission unit 24a that the loss notification reception availability response message has been acquired. (Step S112). Next, the loss notification transmission unit 24a of the mobile terminal A slave device 20a transmits a loss notification transmission request message to the loss notification reception unit 54a of the third-party mobile terminal B 50a (step S113).

  When receiving the loss notification transmission request message, the loss notification receiving unit 54a of the mobile terminal B50a uses the RSSI radio wave intensity emitted from the mobile terminal A slave 20a, and the mobile terminal A slave 20a and the mobile terminal B50a. Is created (step S114). Next, the loss notification receiving unit 54a of the portable terminal B 50a notifies the slave unit information transmitting unit 55a of the MAC address and distance information of the portable terminal A slave unit 20a (step S115).

  Next, the slave unit information transmission unit 55a of the portable terminal B50a requests the positioning unit 52a to perform positioning in order to cause the positioning unit 52a to position the position of the portable terminal B50a (steps S116 and S117). The positioning unit 52a of the portable terminal B50a measures the position of the portable terminal B50a using the GPS or the radio field intensity with the base station (step S118). When the positioning unit 52a of the portable terminal B50a measures the position of the portable terminal B50a, the positioning unit 52a responds to the slave unit information transmitting unit 55a using the position of the portable terminal 50a as positioning information (step S119).

  Next, the slave unit information transmitting unit 55a of the portable terminal B50a uses the mobile communication network communication unit B53a to acquire the acquired distance information, positioning information, and MAC address as a lost slave unit discovery notification message as a subscriber information management device 40a. (Step S120). When the lost child device management unit 42a of the subscriber information management device 40a receives the lost child device discovery notification message, it corresponds to the information indicating that the MAC address stored in the lost child device discovery notification message is in a lost state. It is determined whether or not it is stored (step S121).

  When the lost child device management unit 42a of the subscriber information management device 40a is stored in association with information indicating that the MAC address stored in the lost child device discovery notification message is in a lost state, the distance information and The position information is notified to the handset position notification unit 43a (step S122).

  The subunit | mobile_unit position notification part 43a of the subscriber information management apparatus 40a produces a discovery message using the notified distance information and position information (step S123). Next, the slave unit location notification unit 43a of the subscriber information management device 40a transmits the created discovery message to the mobile terminal A base unit 30a via the mobile communication network communication unit 41a and the mobile communication network communication unit A33a. (Step S124). Then, the system ends the process.

[Effect of Example 2]
As described above, when the mobile device of the mobile terminal according to the second embodiment is left behind and lost, the mobile device communicates with other mobile terminals in the vicinity via short-range wireless communication. Further, the other mobile terminal transmits a lost handset discovery notification message of the mobile terminal A handset 20a to the subscriber information management device 40a via the mobile communication network. Therefore, the system according to the second embodiment identifies the position of the remaining child device even when the child device of the portable terminal that can be separated is left behind, and for the parent device corresponding to the remaining child device Can be notified.

  In addition, the subscriber information management device 40a according to the second embodiment creates a discovery message only when a lost handset discovery notification message storing the same MAC address as that registered in advance is stored, and a lost message is created. Send to the master unit corresponding to the slave unit in the state. For this reason, the system according to the second embodiment creates an unnecessary discovery message when the child device is misplaced and determined to be lost even though the child device is not lost, and the corresponding parent device is created. Can be prevented from being sent to.

  Further, the loss notification receiving unit 54a according to the second embodiment identifies the distance between the mobile terminal B 50a and the mobile terminal A slave 20a using the intensity of the radio wave emitted by the mobile terminal A slave 20a. Therefore, the system according to the second embodiment can create a discovery message that considers not only position information but also distance information. As a result, the system according to the second embodiment can more accurately indicate the position where the lost handset is left to the user.

  Next, as a third embodiment, a system that indicates the position of a lost mobile terminal slave using a lost slave discovery notification message transmitted from a plurality of mobile terminals will be described. Note that description of the same processing as that of the system according to the second embodiment is omitted.

[System configuration]
First, the configuration of a system according to the third embodiment will be described with reference to FIG. FIG. 5 is a schematic diagram illustrating an example of a system according to the third embodiment. As shown in FIG. 5, the system includes a mobile terminal A10b, a subscriber information management device 40b, a third party mobile terminal B50b, a mobile terminal C60b, and a mobile terminal D70b. Similar to the portable terminal A10a according to the second embodiment, the portable terminal A10b is a portable terminal that can be separated into the portable terminal A slave 20b and the portable terminal A parent 30b. The mobile terminal A10b and the third-party mobile terminal B50a are information communication terminals such as a mobile phone, PHS, PDA, and PC. The subscriber information management device 40b is a server located on, for example, a core network (main line network) of a mobile communication network.

  The portable terminal A slave 20b has the same configuration as the portable terminal A slave 20a according to the second embodiment. The mobile terminal A base unit 30b has the same configuration as the mobile terminal A base unit 30b according to the second embodiment. The third-party mobile terminal B50b has the same configuration as the third-party mobile terminal B50a according to the second embodiment. The mobile terminal C60b and the mobile terminal D70b are mobile terminals similar to the third-party mobile terminal B50b. The function of each part 21b-55b which each portable terminal has demonstrates the same function as the function of each part 21a-55a which the portable terminal which concerns on Example 2 has.

[Configuration of subscriber information device]
The subscriber information management apparatus 40b according to the third embodiment includes a mobile communication network communication unit 41b, a lost child device management unit 42b, and a child device position notification unit 43b. The function which each part 41b-43b exhibits is the same as the function of each part 41a-43a which concerns on Example 2. FIG. In addition, the subscriber information management device 40b includes a handset position estimation unit 44b. The slave unit position estimation unit 44b is, for example, an integrated circuit such as an ASIC or FPGA, or an electronic circuit such as a CPU or MPU.

  The slave unit position estimation unit 44b collects lost slave unit discovery notification messages transmitted from a plurality of master units, and identifies the location of the lost slave unit using the collected missing slave unit discovery notification messages. Specifically, the handset position estimation unit 44b obtains a lost handset discovery notification message from each of the third party mobile terminal B50b, mobile terminal C60b, and mobile terminal D70b.

  Note that the third-party mobile terminal B50b, the mobile terminal C60b, and the mobile terminal D70b are similar to the third-party mobile terminal B50a according to the second embodiment when receiving a loss notification request from the lost child device. Execute the above process to create a lost handset discovery notification message. Next, each mobile terminal transmits the created lost handset discovery notification message to the subscriber information management device 40b.

  The handset position estimation unit 44b estimates the position where the handset in the lost state is left based on the lost handset discovery notification message transmitted from each mobile terminal. Further, when estimating the position where the lost child device is left, the child device position estimating unit 44b notifies the child device position notifying unit 43b of the estimated position of the child device.

  Next, an example of a method for estimating the position of the child device by the child device position estimation unit 44b will be described with reference to FIGS. 6A and 6B. FIG. 6A is a schematic diagram illustrating an example of position estimation weighting information used by the system according to the third embodiment. FIG. 6B is a diagram for explaining an example of position measurement used by the system according to the third embodiment.

  First, the child device position estimation unit 44b collects the position information and distance information stored in the lost child device discovery notification message, and there is a child device in a lost state using the collected position information and distance information. Estimate the position. For example, when the distance information stored in the lost child device discovery notification message is “D”, the child device position estimation unit 44b is on the circumference range of the radius D with the position stored in the position information as the origin. It is presumed that there is a high probability that there is a child device. Further, as shown in FIG. 6A, the slave unit position estimation unit 44b estimates that there is a lost slave unit in a range having a certain extent from the circumference of the radius D.

  Using the position information and distance information stored in the lost child device discovery notification message, the child device position estimation unit 44b superimposes a circumferential range with a high probability that a child device exists on the map. Further, the child device position estimation unit 44b further uses the position information and distance information stored in the lost child device discovery notification message acquired from another communication terminal to further determine a circumferential range where the probability that a child device exists is high. Overlay on the map.

  Here, the ring shown in FIG. 6B indicates the probability that there is a lost handset. In addition, the ring shown in FIG. 6B indicates that the probability that a child device exists in the stippled portion is high. The slave unit position estimation unit 44b estimates that there is a lost slave unit in the range in which the probability that there is a lost slave unit is highest from the overlapped range.

  When the position where the lost child device is left is estimated, the child device position estimating unit 44b notifies the child device position notifying unit 43b of the estimated position to the parent device corresponding to the lost child device. To ask. When the slave unit position notification unit 43b is requested to notify the estimated location, the slave unit location notification unit 43b creates a discovery message indicating the location estimated by the slave unit location estimation unit 44b, and the created discovery message is transmitted to the mobile terminal. A is transmitted to the parent device 30b.

  For example, the slave unit location estimation unit 44b has a more detailed location of the lost mobile terminal A slave unit 20a than the discovery message created by the slave unit location notification unit 43a according to the second embodiment illustrated in FIG. 3E. Can be shown. Therefore, the slave unit location notification unit 43b creates a discovery message that is more detailed than the location of the lost mobile terminal A slave unit 20a, rather than the discovery message created by the slave unit location notification unit 43a according to the second embodiment. And it can transmit to the portable terminal A main | base station 30b.

[System processing]
Next, a processing flow of the system according to the third embodiment will be described with reference to FIG. FIG. 7 is a sequence diagram for explaining an example of processing of the system according to the third embodiment. The system according to the third embodiment executes the same processing from step S101 to step S120 illustrated in FIG. Therefore, FIG. 7 omits the processing corresponding to steps S101 to S120 shown in FIG.

  When the slave unit information transmission unit 55b of the third-party portable terminal B50b creates the lost slave unit discovery notification message, the slave unit information transmission unit 55b transmits the message to the subscriber information management device 40b via the mobile communication network communication unit B53b (step S201). ). Next, when the lost child device management unit 42b of the subscriber information management apparatus 40b acquires the lost child device discovery notification message, the lost child device management unit 42b registers the lost child device having the MAC address stored in the lost child device discovery notification message. It is determined whether or not (step S202).

  If the lost child device management unit 42b of the subscriber information management device 40b is registered as lost for the child device having the MAC address stored in the lost child device discovery notification message, the lost child device management unit 42b uses the position information and the distance information. It transfers to the estimation part 44b (step S203). When acquiring the location information and the distance information, the slave unit position estimation unit 44b of the subscriber information management device 40b acquires a circumferential range where the probability that the slave unit exists is high and superimposes it on the map (step S204). ).

  Next, the lost child device management unit 42b of the subscriber information management apparatus 40b acquires the lost child device discovery notification message notified from the mobile terminal C60b (step S205). When the lost child device management unit 42b of the subscriber information management apparatus 40b obtains the lost child device discovery notification message, it corresponds to the information indicating that the MAC address stored in the lost child device discovery notification message is in a lost state. It is determined whether or not the information is stored (step S206).

  When the lost child device management unit 42b of the subscriber information management device 40b is stored in association with information indicating that the MAC address stored in the lost child device discovery notification message is in a lost state, the location information and The distance information is transferred to the handset position estimation unit 44b (step S207). Next, when the slave unit position estimation unit 44b of the subscriber information management device 40b acquires the position information and the distance information, the slave unit position estimation unit 44b acquires a circumferential range where the probability that the slave unit exists is high and superimposes it on the map. (Step S208).

  Next, the lost child device management unit 42b of the subscriber information management device 40b acquires the lost child device discovery notification message notified from the portable terminal D70b (step S209). When the lost child device management unit 42b of the subscriber information management device 40b acquires the lost child device discovery notification message from the portable terminal D70b, the child device having the MAC address stored in the lost child device discovery notification message is registered as lost. It is determined whether it has been performed (step S210).

  If the lost child device management unit 42b of the subscriber information management apparatus 40b is registered as lost for the child device having the MAC address stored in the lost child device discovery notification message, the lost child device management unit 42b uses the position information and the distance information as the child device position. It transfers to the estimation part 44b (step S211). Next, when the slave unit position estimation unit 44b of the subscriber information management apparatus 40b acquires the location information and the distance information, the slave unit location estimation unit 44b acquires a circumferential range where the probability that the slave unit exists is high and superimposes it on the map. (Step S212).

  The slave unit location estimation unit 44b of the subscriber information management apparatus 40b notifies the estimated location when the location where the lost slave unit is left is estimated using three lost slave unit discovery notification messages. In this manner, a request is made to the slave unit position notification unit 43b (step S213). Specifically, the slave unit location estimation unit 44b of the subscriber information management apparatus 40b superimposes three lost slave unit discovery notification messages on a map and estimates that there is a slave unit left in the range with the highest probability. To do. When requested to notify the estimated position, the slave unit position notification unit 43b of the subscriber information management device 40b creates a discovery message using the position estimated by the slave unit position estimation unit 44b. (Step S214).

  Next, when creating the discovery message, the slave unit position notification unit 43b of the subscriber information management device 40b transmits the created discovery message to the mobile terminal A master unit 30b (step S215). Thereafter, the system ends the process.

[Effect of Example 3]
As described above, the subscriber information management apparatus according to the third embodiment uses a plurality of lost information to estimate the position where the lost child device exists, and the estimated position corresponds to the lost child device. Notify the parent machine Therefore, the system according to the third embodiment notifies the user of the discovery message that shows the position where the lost handset is left more accurately and in detail than the system according to the second embodiment. Can do.

  Next, as a fourth embodiment, a system that requests a third party mobile terminal that has transmitted a lost child device discovery notification message to search for a child device will be described. Note that the description of the same processing as the system according to the second embodiment and the system according to the third embodiment is omitted.

  First, the configuration of a system according to the fourth embodiment will be described with reference to FIG. FIG. 8 is an example of a block diagram for explaining a system according to the fourth embodiment. As shown in FIG. 8, the system according to the fourth embodiment includes a mobile terminal A10c, a third-party mobile terminal B50c, and a subscriber information management device 40c. The mobile terminal A10c (mobile terminal device 10) is a mobile terminal that can be separated into the mobile terminal A slave device 20c and the mobile terminal A parent device 30c, as with the mobile terminal A according to the second and third embodiments. The mobile terminal A10c and the third-party mobile terminal B50c are information communication terminals such as a mobile phone, PHS, PDA, and PC. The subscriber information management device 40c is, for example, a server located on the core network (core network) of the mobile communication network.

[Configuration of mobile terminal A slave unit]
The portable terminal A slave unit 20c according to the fourth embodiment is similar to the portable terminal A slave unit 20b according to the third embodiment in that the slave unit loss determination unit 21c, the nearby terminal detection unit 22c, the slave unit radio unit A23c, and the loss notification transmission unit 24c and a user interface unit 25c. Each part 21c-24c which concerns on Example 4 exhibits the same function as each part 21b-24b which concerns on Example 3. FIG. Further, the mobile terminal A slave device 20c according to the fourth embodiment includes a search instruction receiving unit 26c. The search instruction receiving unit 26c is, for example, an integrated circuit such as an ASIC or FPGA, or an electronic circuit such as a CPU or MPU.

  When receiving a driving instruction from a third-party mobile terminal B 50c, the search instruction receiving unit 26c controls the user interface unit 25c to execute the driving control instruction. Specifically, the search instruction receiving unit 26c receives a slave unit control message transmitted from another person's portable terminal via the slave unit radio unit A23c. In addition, the search instruction receiving unit 26c controls the user interface unit 25c according to the received child device control message. Here, the user interface unit 25c is, for example, an input device such as a numeric keypad for operating the mobile terminal A10a, a vibrator for notifying incoming calls, a speaker, a monitor, and the like.

  For example, when the search instruction receiving unit 26c receives a slave unit control message in which a sound output instruction is stored among the slave unit control messages shown in FIG. 9, the user interface unit 25c sounds a sound such as an alarm sound. Notify When notified by the search instruction receiving unit 26c to sound a sound such as an alarm sound, the user interface unit 25c sounds a sound such as an alarm sound. Here, FIG. 9 is an example of a diagram for explaining a handset control message according to the fourth embodiment.

  Further, for example, when the search instruction receiving unit 26c receives a slave unit control message in which the light output instruction is stored among the slave unit control messages shown in FIG. 9, the search instruction receiver unit 26c instructs the user interface unit 25c to turn on the light. Notice. When notified by the search instruction receiving unit 26c to turn on the light, the user interface unit 25c turns on or flashes the light.

  Further, for example, when the search instruction receiving unit 26c receives a slave unit control message storing a vibration instruction among the slave unit control messages shown in FIG. 9, the search instruction receiver unit 26c notifies the user interface unit 25c to drive the vibrator. To do. The user interface unit 25c drives the vibrator when notified by the search instruction receiving unit 26c to drive the vibrator.

  For example, when the search instruction receiving unit 26c receives a slave unit control message in which a plurality of instructions are stored, the search instruction receiving unit 26c controls the user interface unit 25c to simultaneously execute the stored instructions.

[Configuration of third-party mobile terminal B]
The third-party portable terminal B50c includes a base unit radio unit B51c, a positioning unit 52c, a mobile communication network communication unit B53c, a loss notification receiving unit 54c, and a slave unit information transmitting unit 55c. Each part 51c-55c exhibits the same function as each part 51b-55b which concerns on Example 3. FIG. The third-party portable terminal B50c further includes a user interface unit 56c and a search instruction transmission unit 57c. The search instruction transmission unit 57c is, for example, an integrated circuit such as an ASIC or FPGA, or an electronic circuit such as a CPU or MPU.

  The user interface unit 56c is a user interface of a third-party mobile terminal B50c. Specifically, the user interface unit 56c is an input device, a display device, or the like that accepts an operation on a third party mobile terminal B50c. In addition, the user interface unit 56c notifies the search instruction transmission unit 57c of the operation input by the user. The user interface unit 56c is an input device such as a numeric keypad for operating the mobile terminal A10a.

  When the third-party mobile terminal B50c receives the lost information from the mobile terminal A slave 20c, the search instruction transmitter 57c transmits a drive instruction to the mobile terminal A slave 20c. Specifically, when the third party mobile terminal B50c receives the lost information from the mobile terminal A handset 20c, the third party mobile terminal B50c notifies the lost handset management unit 42c of the lost handset discovery. Send a message. Then, the third-party portable terminal B50c is requested by the lost child device management unit 42c to search for the lost child device.

  When the search instruction transmission unit 57c is requested by the lost child device management unit 42c to search for the lost child device, the search instruction transmission unit 57c sends a child device control message shown in FIG. 9 to the lost child device. Send. For example, the search instruction transmission unit 57c transmits the child device control message in which the sound output instruction is stored when the user selects the child device control message in which the sound output instruction is stored.

  As shown in FIG. 9, in the slave unit control message, information indicating an instruction is stored in the header portion. For example, when “Type: 0x05” is stored in the header part of the slave unit control message, the slave unit that has received the slave unit control message is instructed to output a sound. Further, when “Type: 0x06” is stored in the header portion of the slave unit control message, the slave unit that has received the slave unit control message is instructed to output light. Further, when “Type: 0x07” is stored in the header part of the slave unit control message, the slave unit that has received the slave unit control message is instructed to vibrate.

  As shown in FIG. 9, information “Length: 4” indicating that the following data length is 4 bytes is stored in the data length portion of each slave unit control message. Further, 4 bytes of information for instructing the start of each control is stored after the data length part.

[Configuration of subscriber information management device]
The subscriber information management device 40c has a mobile communication network communication unit 41c, a lost child device management unit 42c, and a child device position notification unit 43c. The mobile communication network communication unit 41c and the slave unit location notification unit 43c execute the same processing as the mobile communication network communication unit 41a and the slave unit location notification unit 43a according to the second embodiment.

  When the lost child device management unit 42c according to the fourth embodiment acquires the lost child device discovery notification message from the child device information transmission unit 55c, the MAC address stored in the lost child device notification message indicates information indicating a lost state. It is determined whether it is stored in association with. In addition, when the MAC address stored in the lost child device discovery notification message is stored in association with the information indicating the lost state, the lost child device management unit 42c transmits the lost child device discovery notification message. It is determined whether the owner of B50c has pre-registered search cooperation.

  In the system according to the fourth embodiment, only when the owner of the third-party mobile terminal B50c that has transmitted the lost handset discovery notification message has pre-registered the mobile terminal search cooperation, Request to search. When the owner of the portable terminal B50c that has transmitted the lost child device discovery notification message has registered to cooperate with the search for the portable terminal, the lost child device management unit 42c transmits the lost child device discovery notification message. The terminal B50c is requested to search for the lost handset.

[System processing]
Next, the flow of processing executed by the system according to the fourth embodiment will be described with reference to FIG. FIG. 10 is a sequence diagram for explaining an example of processing executed by the system according to the fourth embodiment. The system according to the third embodiment executes the same processing from step S101 to step S120 illustrated in FIG. Therefore, in FIG. 10, the processes corresponding to steps S101 to S120 shown in FIG. 4 are omitted.

  First, the lost child device management unit 42c of the subscriber information management apparatus 40c acquires a lost child device discovery notification message (step S301). When the lost child device management unit 42c of the subscriber information management apparatus 40c acquires the lost child device discovery notification message, is the lost child device registered with the MAC address stored in the lost child device discovery notification message registered as lost? It is determined whether or not (step S302).

  When the slave unit having the MAC address stored in the lost slave unit discovery notification message is registered as lost, the owner of the portable terminal B50c determines that the owner of the portable terminal B50c It is determined whether or not the search cooperation is pre-registered (step S303). When the owner of the portable terminal B50c has pre-registered the search cooperation of the portable terminal, the lost child machine management unit 42c of the subscriber information management device 40c sets the lost child machine to the portable terminal B50c. A search is requested (step S304).

  When the search instruction transmission unit 57c of the portable terminal B50c is requested to search for the slave unit, the user interface unit 56c selects the slave unit control message to prompt the user to transmit the slave unit control message (step S305). The screen to be displayed is displayed (step S306).

  Next, when the user interface unit 56c of the portable terminal B50c is operated to transmit the slave unit control message to the slave unit in the lost state (step S307), the search instruction is transmitted so as to transmit the slave unit control message. The unit 57c is instructed (step S308). When instructed to transmit the slave unit control message, the search instruction transmission unit 57c of the portable terminal B50c transmits the slave unit control message to the lost slave unit via the master unit radio unit B51c (step). S309).

  Next, when receiving the slave unit control message, the search instruction receiving unit 26c of the portable terminal slave unit 20c transfers the instruction stored in the slave unit control message to the user interface unit 25c (step S310). When acquiring the instruction, the user interface unit 25c of the portable terminal slave 20c executes the instructed process (step S311). For example, the user interface unit 25c of the portable terminal slave 20c performs a process of generating a sound, turning on light, or causing vibration.

[Effect of Example 4]
As described above, the mobile terminal B 50c according to the fourth embodiment transmits a handset control message to the mobile terminal A handset 20c in a lost state via short-range wireless communication. And the portable terminal A subunit | mobile_unit 20c performs the instruction | command stored in the subunit | mobile_unit control message, when a subunit | mobile_unit control message is received. Therefore, the system according to the fourth embodiment can provide a method for easily finding a lost child device to a user who cooperates in searching for the lost child device.

  Next, a system according to Embodiment 5 will be described. A system according to the fifth embodiment will be described with respect to a system that requests cooperation from a third-party mobile terminal that has transmitted a lost child device discovery notification message so as to search for a lost child device. Moreover, the system which concerns on Example 5 shows the position where the lost child machine was left with respect to the portable terminal of the third party who searches the position where the lost child machine was left. In addition, description is abbreviate | omitted about the process same as the system which concerns on Example 2-Example 4. FIG.

[System configuration]
First, the configuration of a system according to the fifth embodiment will be described with reference to FIG. FIG. 11 is an example of a block diagram for explaining a system according to the fifth embodiment. The system according to the fifth embodiment includes a mobile terminal A10d, a third-party mobile terminal B50d, and a subscriber information management device 40d. The mobile terminal A10d and the third-party mobile terminal B50d are information communication terminals such as a mobile phone, PHS, PDA, and PC. The subscriber information management device 40d is a server located on, for example, a core network (main line network) of a mobile communication network.

  The mobile terminal A10d according to the fifth embodiment is a mobile terminal that can be separated into the mobile terminal A slave device 20d and the mobile terminal A parent device 30d, similarly to the mobile terminal A according to the second to fourth embodiments. The mobile terminal A10d has the same configuration as that of the mobile terminal A10c according to the fourth embodiment, and executes the same processing as the mobile terminal A10c. The mobile terminal A10d is an information communication terminal such as a mobile phone, PHS, or PDA. The third-party mobile terminal B50d is an information communication terminal such as a mobile phone, PHS, PDA, and PC. The subscriber information management device 40d according to the fifth embodiment has the same configuration as the subscriber information management device 40c according to the fourth embodiment, and executes the same processing as the subscriber information management device 40c.

[Configuration of third-party mobile terminal B]
As shown in FIG. 11, the third-party mobile terminal B 50 d includes units 51 d to 57 d and a slave unit position specifying unit 58 d. Here, each part 51d-57d which concerns on Example 5 exhibits the function similar to each part 51c-57c which concerns on Example 3. FIG. Further, the third-party mobile terminal B50d has a handset position specifying unit 58d. The slave unit specifying unit 58d is, for example, an integrated circuit such as an ASIC or FPGA, or an electronic circuit such as a CPU or MPU.

  The slave unit position specifying unit 58d measures the radio field strength of short-range wireless communication emitted from the mobile terminal A slave unit 20d from a plurality of positions via the master unit radio unit B51d, and uses the measured plurality of radio field strengths. The position of the portable terminal A slave 20d is identified. Specifically, the slave unit specifying unit 58d communicates with the lost mobile terminal A slave unit 20d using the master unit radio unit B51d. And subunit | mobile_unit position specific | specification part 58d estimates the position where portable terminal A20d was left using the intensity | strength of the electromagnetic wave which portable terminal A20d oscillates. Moreover, the subunit | mobile_unit position specific | specification part 58d displays the estimated position of the portable terminal A subunit | mobile_unit 20d on portable terminal B50d.

  When the third-party mobile terminal B 50d searches for the mobile terminal A slave 20d, the slave unit specifying unit 58d displays an instruction as shown in FIG. 12 using the user interface unit 56d. Moreover, the subunit | mobile_unit position specific | specification part 58d makes the positioning part 52d measure the several position of the portable terminal B50d of the third party who communicated with the portable terminal A subunit | mobile_unit 20d. Moreover, the subunit | mobile_unit position specific | specification part 58d communicates with the portable terminal A subunit | mobile_unit 20d from several positions, and estimates the position of the portable terminal A subunit | mobile_unit 20d. Here, FIG. 12 is a diagram illustrating an example of instructions displayed on the mobile terminal according to the fifth embodiment.

  A method for estimating the position where the slave unit in the lost state is left behind by the slave unit specifying unit 58d will be described in detail with reference to FIGS. FIG. 13 is a diagram for explaining an example of position measurement used by the system according to the fifth embodiment. The arrow shown in FIG. 13 shows the locus | trajectory which the user who has portable terminal B50d moved. In addition, the ring shown in FIG. 13 indicates the probability that there is a lost child device. Further, the ring shown in FIG. 13 indicates that there is a high probability that a child device exists in the stippled portion.

  First, as shown in FIG. 12, the slave unit location specifying unit 58d communicates with the mobile terminal A slave unit 20d, which is a slave unit in a lost state, using the short-range wireless technology. Moreover, the subunit | mobile_unit position specific | specification part 58d makes the positioning part 52d measure the positional information on 3rd party's portable terminal B50d.

  Next, as shown in FIG. 12, the slave unit position specifying unit 58d advances the user of the portable terminal B50d by 10 steps. The subunit | mobile_unit position specific | specification part 58d communicates again with the portable terminal A subunit | mobile_unit 20d using a short-distance radio | wireless technique, when making the user of portable terminal B50d advance 10 steps. Moreover, the subunit | mobile_unit position specific | specification part 58d makes the positioning part 52d measure the positional information on portable terminal B50d.

  Next, as shown in FIG. 12, handset position specifying unit 58d causes the user of mobile terminal B50d to advance 10 steps in the direction of 90 degrees to the right. When the user of the portable terminal B 50d moves the user of the portable terminal B 50d forward 10 steps in the direction of 90 degrees to the right, the child machine position specifying unit 58d communicates again with the portable terminal A child machine 20d using the short-range wireless technology. Moreover, the subunit | mobile_unit position specific | specification part 58d makes the positioning part 52d measure the positional information on portable terminal B50d.

  Then, as shown in FIG. 13, the slave unit specifying unit 58d communicates with the mobile terminal A slave unit 20d that is a slave unit in a lost state from three different points. The subunit | mobile_unit location specific | specification part 58d observes the intensity | strength of the electromagnetic wave transmitted from the portable terminal A subunit | mobile_unit 20d in each point, and performs the process similar to the subunit | mobile_unit position estimation part 44b which concerns on Example 3. FIG.

  Specifically, the handset location specifying unit 58d uses the mobile station A handset 20d using the strength (RSSI) of the radio wave transmitted from the handheld device A handset 20d and the position information measured by the positioning unit 52d. Acquire a plurality of circumferential ranges that have a high probability of being present. And the subunit | mobile_unit position specific | specification part 58d overlaps the circumference range with high probability that the portable terminal A subunit | mobile_unit 20d exists, as shown in FIG. And the subunit | mobile_unit position specific | specification part 58d estimates that the portable terminal A subunit | mobile_unit 20d exists in the range with the highest probability that the portable terminal A subunit | mobile_unit 20d exists from the range which performed the superimposition.

  In addition, when the position of the mobile terminal A slave 20d is estimated, the handset location specifying unit 58d, as shown in FIG. 14, estimates the mobile terminal A slave 20d estimated using the position of the mobile terminal B 50d as a reference. Are relatively displayed on the user interface unit 56d. Here, FIG. 14 is a display example of a search result displayed by the slave unit position specifying unit according to the fifth embodiment. In the example illustrated in FIG. 14, the position of the mobile terminal A slave 20 d is 30 degrees to the right and 5 meters ahead of the third party mobile terminal B 50 d.

[System processing]
Next, the flow of processing executed by the system according to the fifth embodiment will be described with reference to FIG. FIG. 15 is a sequence diagram for explaining an example of processing executed by the system according to the fifth embodiment. The system according to the fifth embodiment executes the same processing from step S101 to step S120 illustrated in FIG. Therefore, FIG. 15 omits the processes corresponding to steps S101 to S120 shown in FIG.

  When the lost child device management unit 42d of the subscriber information management apparatus 40b obtains the lost child device discovery notification message, it corresponds to the information indicating that the MAC address stored in the lost child device discovery notification message is in a lost state. It is determined whether or not it is stored (step S401). Next, the lost child device management unit 42d of the subscriber information management device 40b determines whether or not the owner of the mobile terminal B50d has pre-registered search cooperation for the mobile terminal (step S402).

  The lost child device management unit 42d of the subscriber information management device 40b, if the owner of the portable terminal B50d that has transmitted the lost child device discovery notification message has pre-registered the search cooperation for the portable device, A request is made to search for a machine (step S403). Next, the slave unit position specifying unit 58d of the portable terminal B50d displays an instruction on the user interface unit 56d to move the position of the portable terminal B50d (step S404).

  When the user interface unit 56d of the portable terminal B50d is instructed to display an instruction for the user from the slave unit position specifying unit 58d (step S405), the instruction for the user is displayed (step S406).

  Next, when displaying the instruction on the user interface unit 56d (step S407), the slave unit specifying unit 58d of the portable terminal B50d causes the positioning unit 52d to measure the position of the portable terminal B50d (step S408). The positioning unit 52d of the portable terminal B50d, when positioning the position of the portable terminal B50d (step S409), notifies the positioning result to the slave unit position specifying unit 58d (step S410).

  The handset position specifying unit 58d of the mobile terminal B50d observes the intensity of the radio wave transmitted from the mobile terminal A handset 20d at three different points, and specifies the position of the mobile terminal A handset 20d (step S411).

  When specifying the position of the mobile terminal A slave unit 20d, the slave unit location specifying unit 58d of the mobile terminal B50d displays the specified location of the mobile terminal A slave unit 20d on the user interface unit 56d (step S412). Then, the user interface unit 56d of the mobile terminal B50d displays the position of the specified mobile terminal A slave device 20d (step S413). Thereafter, the system ends the process.

[Effect of Example 5]
As described above, the third-party mobile terminal B 50d according to the fifth embodiment specifies the position where the lost mobile terminal A slave device 20d is left using the strength of the short-range wireless. Therefore, in the system according to the fifth embodiment, when the third-party mobile terminal B50d approaches the vicinity of the mobile terminal A slave device 20d, the third-party mobile terminal B50d is used for the mobile terminal A slave device 20d. The position can be specified. As a result, the system according to the fifth embodiment can more accurately indicate to the user the location where the lost child device is left, and facilitate the discovery of the child device.

  So far, the first to fifth embodiments have been described. However, the mobile terminal and the system according to each embodiment may be implemented in various different forms other than the above-described embodiments. Therefore, another embodiment will be described below as a sixth embodiment.

(1) About the process which a system performs The system which concerns on Example 2-Example 5 performed the process each independent, and showed the position where the portable terminal in the lost state was left behind to the user. However, the embodiment is not limited to this, and a plurality of processes shown in different embodiments may be performed as long as the position of the child device in the lost state is indicated to facilitate the detection of the child device in the lost state. It may be executed simultaneously.

  For example, in the system that executes the processing shown in the third and fourth embodiments, the user of the mobile terminal that has transmitted the lost child device discovery notification message has not registered the cooperation for searching for the lost child device. Performs the process shown in the third embodiment. In addition, when the portable terminal that has transmitted the lost child device discovery notification message has registered for cooperation to search for a lost child device, the system executes the processing described in the fourth embodiment.

(2) Short-range wireless communication The parent device, the child device, and other communication terminals of the mobile terminals according to the first to fifth embodiments described above communicate using a wireless LAN as a short-range wireless technology. However, the embodiment is not limited to this, as long as the slave unit and other communication terminals communicate using the short-range wireless technology. Therefore, the master unit, the slave unit, and other communication terminals may use standards such as BT, IC communication, and Wi-Fi as the short-range wireless technology.

  Further, when performing communication using BT, the mobile terminal and the communication terminal according to each of the second to fifth embodiments may store the BT address instead of the MAC address in the lost handset discovery notification message. Further, when the slave radio unit uses BT, the neighboring terminal detection unit applies Serial Port Profile (SPP). Here, SPP is a protocol that realizes communication via a virtual serial cable using BT.

  Further, in each of the above-described Examples 2 to 5, the slave unit communicates in the ad hoc mode. However, the embodiment is not limited to this. For example, if a lost handset is in a range that can be connected to a public access point, it will be lost to another communication terminal connected to the same access point using the infrastructure mode. You may request transmission of a slave unit discovery notification message.

(3) Lost Handset Discovery Notification Message In the systems according to Examples 2 to 5, the location measured by another communication terminal is stored in the lost handset discovery notification message. However, the embodiment is not limited to this, and for example, the system indicates a connectable access point when the remaining handset is within a range connectable to a public access point. Information may be stored in the lost handset discovery notification message.

  Moreover, the system which concerns on Examples 2-5 may store the positional information measured using the positioning part in the lost child machine discovery notification message, when the lost child machine has a positioning part.

(4) About determination of a loss state The subunit | mobile_unit loss determination part which concerns on Examples 2-5 has determined with the portable terminal A subunit | mobile_unit being a loss state, for example, when not operating for a fixed time. However, the embodiment is not limited to this. For example, the slave unit loss determination unit includes an acceleration sensor that detects the motion of the slave unit. May be determined to be in a lost state.

  In addition, when the slave unit has a positioning unit that uses GPS or the like, the slave unit loss determination unit may determine that the slave unit is in a lost state if the slave unit has not moved for a certain period of time. In addition, the handset loss determination unit may determine using a combination of techniques for determining these lost states.

(5) About estimation of handset position The handset position estimation unit according to the third embodiment and the handset position specifying unit according to the fifth embodiment use the strength of the short-range wireless communication observed from three points. I was measuring the position of the machine. However, the embodiment is not limited to this, and another method may be used.

  For example, when using the strength of short-range wireless communication observed from two points, the slave unit position estimating unit and the slave unit position specifying unit select two or one place as the position where the remaining slave unit exists. Identify. Further, for example, the slave unit position estimation unit and the slave unit position specifying unit may use the strength of short-range wireless communication observed from three or more points.

(6) Program By the way, in each embodiment, although the case where various processes were implement | achieved using hardware was demonstrated, this invention is not limited to this, The program prepared beforehand is 2nd terminal. You may make it implement | achieve by performing by a part.

  Therefore, in the following, an example of a mobile terminal that executes a program having the same function as the second terminal unit illustrated in the first embodiment will be described with reference to FIG. FIG. 16 is a diagram for explaining an example of a portable terminal that executes a program for transmitting lost information. In the mobile terminal 100 illustrated in FIG. 16, a RAM (Random Access Memory) 150, a CPU (Central Processing Unit) 140, and a ROM (Read Only Memory) 130 are connected by a bus 170. Furthermore, a connection terminal portion I / O (Input / Output) 160 for connecting to the antenna of the short-range wireless communication device is connected to the bus 170.

  In the ROM 130, a determination program 131, a detection program 132, and a lost information transmission program 133 are stored in advance. When the CPU 140 reads out and executes the programs 131 to 133 from the ROM 130, the programs 131 to 133 function as a determination process 141, a detection process 142, and a lost information transmission process 143 as shown in FIG. .

  The processes 141 to 143 correspond to the determination unit 21, the detection unit 22, and the lost information transmission unit 24 shown in FIG.

  Note that the programs 131 to 133 do not need to be stored in the ROM 130, and are stored in, for example, an external storage device, expanded by the CPU 140 via the I / O 160, and function as the processes 141 to 143. Also good.

  Further, the CPU 140 may be an MCU (Micro Controller Unit) or an MPU (Micro Processing Unit).

  The program described in this embodiment can be realized by executing a program prepared in advance on various portable terminals. This program can be distributed via a network such as the Internet. The program is stored in a storage medium that can be read by the second terminal unit such as a hard disk, a flexible disk (FD), a CD-ROM, an MO, and a DVD, and is executed by being read from the storage medium by the second terminal unit. You can also

(7) Processing of each device Note that various information such as information necessary for processing by each device in each embodiment described above and information generated by each device (for example, map data, discovery message, corresponding slave device) The MAC address and the like are stored in a predetermined storage unit included in each device. The storage unit is, for example, a semiconductor memory device such as a random access memory (RAM), a read only memory (ROM), or a flash memory, or a storage device such as a hard disk or an optical disk.

  The following supplementary notes are further disclosed with respect to the embodiments including the above examples.

(Appendix 1) A mobile terminal that can be separated into a first terminal unit connectable to a mobile communication network and a second terminal unit that communicates with the first terminal unit using short-range wireless communication,
The second terminal unit is
A determination unit that determines that the second terminal unit is in a lost state from the first terminal, based on a predetermined rule;
When the determination unit determines that the second terminal unit is in a lost state, detection using the short-range wireless communication to detect whether another terminal capable of performing the same short-range wireless communication is within a communication range And
When the other terminal is detected by the detection unit, position information that is information indicating the position of the other terminal is transmitted to the other terminal by transmitting lost information indicating that the terminal is lost. A lost information transmitting unit that requests to transmit the generated location information and the transmitted lost information to the management server via the mobile communication network;
With
The first terminal unit is
A portable terminal device comprising: an output unit that outputs the received position information when the position information is received from the management server via the mobile communication network.

(Appendix 2) The second terminal unit that created the lost information
Supplementary note 1 further comprising a drive unit that executes an instruction to sound an alarm, an instruction to drive a vibration function, or a drive instruction to drive a light emitting function from the other terminal. The mobile terminal device according to 1.

(Appendix 3) A mobile terminal separable into a first terminal unit connectable to a mobile communication network and a second terminal unit that communicates with the first terminal unit using short-range wireless communication;
A management server for managing correspondence between the second terminal unit and the first terminal unit;
Other terminals connectable to the mobile communication network and capable of communicating using the short-range wireless communication,
A system comprising:
The second terminal unit is
A determination unit that determines that the second terminal unit is in a lost state from the first terminal, based on a predetermined rule;
When the determination unit determines that the second terminal unit is in a lost state, detection using the short-range wireless communication to detect whether another terminal capable of performing the same short-range wireless communication is within a communication range And
When the other terminal is detected by the detection unit, position information that is information indicating the position of the other terminal is transmitted to the other terminal by transmitting lost information indicating that the terminal is lost. A lost information transmitting unit that requests to transmit the generated location information and the transmitted lost information to the management server via the mobile communication network;
With
The first terminal unit includes an output unit that outputs the received position information when the position information is received from the management server via the mobile communication network;
When the other terminal is requested to transmit the lost information and the location information to the management server from the second terminal unit, the lost information and the location information received from the second terminal unit And a transmission unit for transmitting to the management server,
When the management server receives the location information and the lost information from the other terminal, the management server receives the location information and the lost information for the first terminal unit corresponding to the second terminal unit that has transmitted the lost information. And a transfer unit for transferring the position information.

(Appendix 4) The other terminal is
When requested to transmit the lost information and the location information to the management server, the second terminal unit uses the strength of the short-range wireless communication emitted by the second terminal unit, A distance information creating unit that measures the distance to the other terminal and creates distance information that is information about the measured distance;
The transmission unit transmits the distance information created by the distance information creation unit, the position information, and the lost information to the management server,
The management server collects the location information and the loss information from a plurality of other terminals, and uses the collected distance information and the plurality of location information to identify the location of the second terminal unit Further comprising a specific part,
The transfer unit transfers the position of the specified second terminal unit to the first terminal unit corresponding to the second terminal unit whose position is specified by the position specifying unit. The system according to attachment 3.

(Supplementary Note 5) When the second terminal unit that has transmitted the loss information receives an instruction to sound an alarm, an instruction to drive a vibration function, or a driving instruction to drive a light emitting function from the other terminal, A drive unit for executing instructions;
The additional terminal 3 further includes a drive instruction transmission unit that transmits the drive instruction to the second terminal unit when the loss information is received from the second terminal unit. The system according to appendix 4.

(Appendix 6) When the other terminal receives the lost information from the second terminal unit, the other terminal sets the radio field strength of the short-range wireless communication emitted by the second terminal unit that transmitted the lost information at a plurality of positions. Any one of appendix 3 to appendix 5, further comprising a second terminal position identifying unit that measures and uses each measured radio field intensity to identify the position of the second terminal unit that has transmitted the lost information The system according to one.

(Appendix 7) A program executed on a mobile terminal that can be separated into a first terminal unit connectable to a mobile communication network and a second terminal unit that communicates with the first terminal unit using short-range wireless communication. A determination procedure for determining that the second terminal unit is in a lost state from the first terminal based on a predetermined rule;
If it is determined by the determination procedure that the second terminal unit is in a lost state, detection using the short-range wireless communication to detect whether another terminal capable of performing the same short-range wireless communication is within a communication range Procedure and
When the other terminal is detected by the detection procedure, position information that is information indicating the position of the other terminal is transmitted to the other terminal by transmitting lost information indicating that the terminal is lost. A lost information transmission procedure for requesting to transmit the created location information and the transmitted lost information to the management server via the mobile communication network; and
Is executed by the second terminal unit.

(Supplementary Note 8) When an instruction to sound an alarm, an instruction to drive a vibration function, or a driving instruction to drive a light emitting function is received from the other terminal, a driving procedure for executing the instruction is further added to the second terminal. The program according to appendix 7, wherein the program is executed by a part.

(Supplementary note 9) A program executed on another terminal that can be connected to a mobile communication network and can communicate using short-range wireless communication,
From the second terminal of the portable terminal separable into a first terminal unit connectable to a mobile communication network and a second terminal unit communicating with the first terminal unit using short-range wireless communication, the second terminal When receiving lost information indicating that the terminal unit is in a lost state, it creates position information that is information indicating the position of the own device, and sends the position information and the lost information via the mobile communication network. And causing the other terminal to execute a transmission procedure for transmission to the management server.

(Supplementary Note 10) When the loss information is received from the second terminal unit, an instruction to sound an alarm to the second terminal unit, an instruction to drive a vibration function, or a driving instruction to drive a light emitting function The program according to appendix 7 or appendix 9, further causing the other terminal to execute a drive instruction transmission procedure for transmitting

DESCRIPTION OF SYMBOLS 10 Mobile terminal device 20 2nd terminal part 22 Detection part 24 Loss information transmission part 30 1st terminal part 40a Subscriber information management apparatus 50 1st terminal part of another terminal 52 Location information creation part 53 Transmission part 60b 3rd party's carrying Terminal C
70b Third-party mobile terminal D

Claims (4)

A mobile terminal separable into a first terminal unit connectable to a mobile communication network and a second terminal unit that communicates with the first terminal unit using short-range wireless communication,
The second terminal unit is
A determination unit that determines that the second terminal unit is in a lost state from the first terminal, based on a predetermined rule;
When the determination unit determines that the second terminal unit is in a lost state, detection using the short-range wireless communication to detect whether another terminal capable of performing the same short-range wireless communication is within a communication range And
When the other terminal is detected by the detection unit, position information that is information indicating the position of the other terminal is transmitted to the other terminal by transmitting lost information indicating that the terminal is lost. And a lost information transmission unit that requests to transmit the created location information and the transmitted lost information to the management server via the mobile communication network, and
With
The first terminal unit is
A portable terminal device comprising: an output unit that outputs the received position information when the position information is received from the management server via the mobile communication network. The second terminal that created the lost information
The apparatus further comprises a drive unit that executes an instruction to sound an alarm, an instruction to drive a vibration function, or a driving instruction to drive a light emission function from the other terminal. The mobile terminal device according to 1. A portable terminal separable into a first terminal unit connectable to a mobile communication network and a second terminal unit that communicates with the first terminal unit using short-range wireless communication;
A management server for managing correspondence between the second terminal unit and the first terminal unit;
Other terminals connectable to the mobile communication network and capable of communicating using the short-range wireless communication,
A system comprising:
The second terminal unit is
A determination unit that determines that the second terminal unit is in a lost state from the first terminal, based on a predetermined rule;
When the determination unit determines that the second terminal unit is in a lost state, detection using the short-range wireless communication to detect whether another terminal capable of performing the same short-range wireless communication is within a communication range And
When the other terminal is detected by the detection unit, position information that is information indicating the position of the other terminal is transmitted to the other terminal by transmitting lost information indicating that the terminal is lost. And a lost information transmission unit that requests to transmit the created location information and the transmitted lost information to the management server via the mobile communication network, and
With
When the first terminal unit receives the position information from the management server via the mobile communication network, the first terminal unit includes an output unit that outputs the received position information;
When the other terminal is requested by the second terminal unit to transmit the lost information and the location information to the management server, the lost information and the location information received from the second terminal unit And a transmission unit for transmitting to the management server,
When the management server receives the location information and the lost information from the other terminal, the management server receives the location information and the lost information from the second terminal unit that has transmitted the lost information. And a transfer unit for transferring the position information. A program executed on a mobile terminal that is separable into a first terminal unit connectable to a mobile communication network and a second terminal unit that communicates with the first terminal unit using short-range wireless communication. Based on the rules, the determination procedure for determining that the second terminal unit is in a lost state from the first terminal;
If it is determined by the determination procedure that the second terminal unit is in a lost state, detection using the short-range wireless communication to detect whether another terminal capable of performing the same short-range wireless communication is within a communication range Procedure and
When the other terminal is detected by the detection procedure, position information that is information indicating the position of the other terminal is transmitted to the other terminal by transmitting lost information indicating that the terminal is lost. A lost information transmission procedure for requesting to transmit the created location information and the transmitted lost information to the management server via the mobile communication network; and
Is executed by the second terminal unit.

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