JP2011176539A - Portable terminal and position management system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a portable terminal and a position management system, which achieve power saving and highly accurately detect even indoors a position of a slave terminal. <P>SOLUTION: A cellular phone 1 communicates with a plurality of base stations 110 reporting different pieces of position data, and has: a communication part 40 which is synchronized with one of the plurality of base stations 110 and receives a signal from the synchronized base station 110; a storage part 50 which stores a plurality of pieces of position data received by the communication part 40 from the synchronized base station 110, together with received time data; and a control part 30 which transmits as locus data, the plurality of pieces of position data stored in the storage part 50 and the received time data corresponding to each piece of position data to another cellular phone 1 by the communication part 40. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a portable terminal device and a position management system that notify position information.

  Conventionally, a system for searching for a lost child using a mobile terminal device has been proposed. For example, Patent Document 1 proposes a system that searches for a lost child using GPS (Global Positioning System). Further, Patent Document 2 proposes a system that grasps the positional relationship by transmitting position information by short-range wireless communication between the parent terminal and the child terminal.

JP 2007-164663 A JP 2009-003852 A

  However, in the system of Patent Document 1, since the indoor GPS radio wave is unstable, the position measurement accuracy may not be sufficiently obtained. Moreover, in the system of Patent Document 2, the parent terminal and the child terminal each need to periodically send position information, which increases power consumption.

  It is an object of the present invention to provide a portable terminal device and a position management system that can detect the position of a child terminal with high accuracy even in the power saving and indoors.

  A mobile terminal device according to the present invention is a mobile terminal device capable of communicating with a plurality of base stations that broadcast different position data, and is synchronized with one of the plurality of base stations, and the synchronized base station A radio communication unit that receives a signal from the base station, a storage unit that stores a plurality of the position data received from the synchronized base station by the radio communication unit together with reception time data, and the storage unit A control unit configured to transmit a plurality of the position data and the reception time data corresponding to each position data as trajectory data to the other mobile terminal device by the wireless communication unit.

  In addition, when the wireless communication unit receives the trajectory data acquisition request from the other mobile terminal device, the control unit preferably transmits the trajectory data to the other mobile terminal device. .

  Further, when the storage unit continuously receives the position data from the same base station by the wireless communication unit, only the oldest combination of the combination of the position data and the reception time data is the Preferably, it is stored as trajectory data.

  In addition, predetermined category data is commonly associated with the position data broadcast from the plurality of base stations, the storage unit stores the predetermined category data in advance, and the control unit Preferably, when the synchronized base station is changed, the position data is received based on the predetermined category data stored in the storage unit.

  Further, the control unit determines whether or not the position data is broadcast based on the identification data of the base station acquired from the synchronized base station, and the position data is broadcast It is preferable to receive the position data based on the predetermined category data stored in the storage unit while synchronizing with the determined base station.

  Further, when the control unit determines that the position data is not broadcast based on the identification data acquired from a newly synchronized base station when the synchronized base station is changed, It is preferable to end the reception of the position data.

  In addition, when the synchronized base station is changed or when a new location is registered, the control unit is notified of the location data based on the identification data acquired from the new base station. When it is determined that, reception of the position data is preferably started.

  In addition, when the position data is continuously received, the storage unit stores the latest combination among the continuous combinations of the position data and the reception time data as the latest data. It is preferable that the latest data is transmitted to the other portable terminal device by the wireless communication unit in response to a request from the portable terminal device.

  In addition, when the synchronized base station is changed, the control unit obtains the position data acquired from the newly synchronized base station and the reception time data of the position data by the wireless communication unit. It is preferable to transmit to the portable terminal device.

  Moreover, it is preferable that the said control part transmits the data which show an unreceivable to the said other portable terminal device by the said radio | wireless communication part, when it becomes impossible to receive the said position data continuously by the said radio | wireless communication part.

  A location management system according to the present invention is a location management system including a plurality of base stations that report different location data and a plurality of portable terminal devices that can communicate with the base station, and the first portable terminal A device synchronizes with one of the plurality of base stations, receives a signal from the synchronized base station, and the first radio communication from the synchronized base station A first storage unit that stores a plurality of the position data received by the unit together with reception time data; a plurality of the position data stored in the first storage unit; and the reception time corresponding to each position data A first control unit that transmits the data as trajectory data to the second portable terminal device by the first wireless communication unit, and the second portable terminal device includes a plurality of base stations. Ascending position for one The locus data is received from the first portable terminal device by the second wireless communication unit that performs wireless communication with the base station that has registered the position, the display unit, and the second wireless communication unit. Then, it has a 2nd control part which displays the image based on the said locus | trajectory data on the said display part.

  Further, when the first storage unit continuously receives the position data, the first storage unit stores the latest combination among the continuous combinations of the position data and the reception time data as first latest data, In response to a request from the second mobile terminal device, the first control unit transmits the first latest data to the second mobile terminal device by the first wireless communication unit, and When the second control unit receives the first latest data from the first portable terminal device by the second wireless communication unit, the control unit causes the display unit to display an image based on the first latest data. Is preferred.

  Further, the first control unit is a combination of the position data acquired from the newly synchronized base station and the reception time data of the position data when the synchronized base station is changed. 1 latest data is transmitted to the second portable terminal device by the first wireless communication unit as a bulletin, and the second control unit transmits the first portable terminal by the second wireless communication unit. When the bulletin is received from the apparatus, it is preferable that after the fact that the bulletin has been received is notified, an image based on the first latest data as the bulletin is displayed on the display unit as requested.

  In addition, when the second mobile terminal device continuously receives the position data by the second wireless communication unit, the second portable terminal device selects the latest combination from among the continuous combinations of the position data and the reception time data. A second storage unit that stores the latest information as the latest data, and when the second wireless communication unit receives the preliminary report from the first portable terminal device, the second control unit receives the preliminary report. When the first latest data is the same as the second latest data stored in the second storage unit, the second latest data If they are different, it is preferable to notify that the bulletin has been received and to display an image based on the first latest data as the bulletin on the display unit.

  According to the present invention, it is possible to detect the position of a child terminal with low power consumption and high accuracy even indoors.

It is a figure showing composition of a position management system concerning a 1st embodiment. It is a figure which shows the example of installation of the femtocell which concerns on 1st Embodiment. 1 is an external perspective view of a mobile phone according to a first embodiment. It is a block diagram which shows the function of the mobile telephone which concerns on 1st Embodiment. It is a sequence diagram which shows an example of the process in the position management system which concerns on 1st Embodiment. It is a sequence diagram which shows an example of the process in the position management system which concerns on 2nd Embodiment.

<First Embodiment>
The first embodiment of the present invention will be described below. In the present embodiment, a mobile phone 1 will be described as an example of a mobile terminal device.

  FIG. 1 is a diagram showing a configuration of a location management system 100 and related elements according to the present embodiment. The location management system 100 includes a plurality of base stations 110 and a plurality of mobile phones 1.

  Base stations 110 (110a, 110b, and 110c) installed in each of the plurality of femtocells (a, b, and c) perform wireless communication with the mobile phone 1 in its communication area. Specifically, the mobile phone 1 performs time and code synchronization with respect to the base station 110 that obtains a predetermined or higher electric field strength, and then registers its own terminal location. The mobile phone 1 for which location registration has been performed is a communication target.

  The femtocell base station 110 is connected to a management server 120 that manages and manages a plurality of femtocells. Further, the femtocell base station 110 is similar to the normal macrocell base station 210 (210a, 210b, and 210c) via a predetermined network. In addition, it is connected to an HLR (Home Location Register) 300. The HLR is a terminal location management server for grasping a cell to be notified of an incoming call regardless of a macro cell or a femto cell.

  Here, the base station 110 is a small base station that realizes a femto cell in which the communicable area is narrower than that of a normal macro cell base station 210 (for example, up to a radius of several tens of meters). A communication system using the femtocell is a system in which a plurality of small base stations are installed and voice or data communication is performed using a broadband line or the like as a countermeasure for dead areas of radio waves in high-rise apartments, shopping centers, and the like.

  The base station 110 is connected to a telephone line, an optical fiber, or a cable for CATV, and emits radio waves that can be captured by the mobile phone 1 in the cell area. Since the emitted radio wave is the same as that of the base station 210 that constitutes a normal macro cell (having a radius of several hundreds to several tens of kilometers) except for the output intensity, the mobile phone 1 Communication with a small base station 110 is possible. In many cases, the femtocell is included in a macrocell.

  In addition, the plurality of base stations 110 uniformly distribute messages by BC-SMS (Broadcast Short Messaging Services) in the cell area. The mobile phone 1 (1a and 1b) whose location is registered in one of the base stations 110 receives this message in a cell at a predetermined cycle.

  Here, BC-SMS means that a message with a limited capacity (for example, 140 bytes) is sent to an unspecified number of mobile phones 1 existing in a cell area using a protocol called short message service. The service to send. Note that BC-SMS is merely an example in the CDMA2000_1x system, and may be a broadcast service in an approximate cell that conforms to 3GPP.

  The base station 110 regularly distributes non-overlapping information indicating the position of each cell (femtocells a, b, and c) by BC-SMS, and the mobile phone 1 specifies the current position by the received message. To do.

  In the location management system 100, each of the mobile phones 1 is set as a parent or a child, and the mobile phone 1b that is set as a child (hereinafter referred to as a child terminal 1b) is the mobile phone 1a (that is set as a parent). Hereinafter, the trajectory data indicating the movement history of the position of the child terminal 1b or the latest data indicating the latest position of the child terminal 1b is notified to the parent terminal 1a) by a short message.

  Hereinafter, as shown in FIG. 2, a plurality of femtocells (af) are installed for each sales floor in the shopping center. The base station 110 of each femtocell notifies the name of the sales floor (for example, “2F women's clothing”, “2F children's clothing”, etc.) as different location data by BC-SMS. In addition, the size of the femtocell can be set for each sales floor by appropriately adjusting the output of the base station 110.

FIG. 3 is an external perspective view of the mobile phone 1 according to the present embodiment.
The mobile phone 1 includes an operation unit side body 2 and a display unit side body 3. The operation unit side body 2 includes an operation unit 11 on the front surface unit 10 and a microphone 12 to which a voice uttered by a user of the mobile phone 1 during a call or when using a voice recognition application is input. The The operation unit 11 includes a function setting operation button 13 for activating various functions such as various setting functions, a telephone book function, and a mail function, and an input operation button 14 for inputting numbers of telephone numbers, mail characters, and the like. , And a determination operation button 15 for performing determination and scrolling in various operations.

  The display unit side body 3 includes a display unit 21 for displaying various types of information on the surface unit 20 and a receiver 22 for outputting the voice of the other party of the call.

  Further, the upper end portion of the operation unit side body 2 and the lower end portion of the display unit side body 3 are connected via a hinge mechanism 4. In addition, the mobile phone 1 relatively rotates the operation unit side body 2 and the display unit side body 3 which are connected via the hinge mechanism 4, so that the operation unit side body 2 and the display unit side body 3 are rotated. The body 3 can be in an open state (open state), or the operation unit side body 2 and the display unit side body 3 can be folded (folded state).

  FIG. 4 is a block diagram showing functions of the mobile phone 1 according to the present embodiment. The mobile phone 1 includes an operation unit 11, a display unit 21, a control unit 30, a communication unit 40 (wireless communication unit), an antenna 41, a storage unit 50, and a voice control unit 60.

  The control unit 30 controls the entire mobile phone 1, and performs predetermined control on the display unit 21, the communication unit 40, the voice control unit 60, and the like, for example. In addition, the control unit 30 receives input from the operation unit 11 or the like and executes various processes. And the control part 30 controls the memory | storage part 50 in the case of a process execution, reads various programs and data, and writes data. Detailed functions of the control unit 30 according to the present embodiment will be described later.

  The communication unit 40 communicates with an external device (base station 110) in a predetermined use frequency band (for example, 2 GHz band, 800 MHz band, etc.). The communication unit 40 demodulates the signal received from the antenna 41, supplies the processed signal to the control unit 30, modulates the signal supplied from the control unit 30, and transmits from the antenna 41 to the external device. Send to.

  Here, the communication unit 40 corresponds to CDMA2000_1x_EVDO, which is a communication protocol dedicated to data communication in this example, but may be W-CDMA or LTE. Based on a command from the control unit 30, the communication unit 40 receives a message including position data distributed by BC-SMS according to this protocol. In BC-SMS, the delivery timing is specified by BCAST_INDEX in the Extended System Parameters Message, and “BCAST_INDEX = 0” indicates that delivery is not performed.

  A category is set for each message received by the BC-SMS, and the control unit 30 acquires and processes only messages of a category permitted to be received in advance. Thereby, the control part 30 can exclude except the message delivered for a certain purpose (lost child search).

  BC-SMS is performed by receiving broadcast information from the base station 110. The broadcast information can be received as long as it is synchronized with the base station 110, and location registration is not necessarily completed. You don't have to.

  The storage unit 50 includes, for example, a working memory and is used for arithmetic processing by the control unit 30. In addition, various programs according to the present embodiment are stored. Further, the storage unit 50 includes identification information lists (for example, frequencies, channels, etc.) of a plurality of base stations 110 installed in a service providing area (shopping center) of the location management system 100, category data for lost child search, Remember.

  In addition, the storage unit 50 stores a plurality of position data received by the communication unit 40 from the synchronized base station 110 together with time data when received. At this time, when the storage unit 50 continuously receives the same position data (seller name) from the same base station 110, only the oldest combination of the combination of the continuous position data and the reception time data is displayed. Store as trajectory data. That is, the storage unit 50 uses, as trajectory data, a history in which the name of the sales floor and the time of movement to the sales floor (more precisely, the time of first receiving a BC-SMS message after moving) are arranged in time series. Remember.

  Furthermore, when the position data is continuously received from any of the base stations 110, the storage unit 50 stores the latest combination among the combinations of the position data and the reception time data as the latest data. That is, the memory | storage part 50 memorize | stores the latest time when the message was received by BC-SMS, and the position data at this time.

  The sound control unit 60 performs predetermined sound processing on the signal supplied from the communication unit 40 under the control of the control unit 30, and outputs the processed signal to the receiver 22. The receiver 22 outputs the signal supplied from the audio control unit 60 to the outside. This signal may be output from a speaker (not shown) instead of the receiver 22 or together with the receiver 22.

  In addition, the voice control unit 60 processes the signal input from the microphone 12 according to the control of the control unit 30, and outputs the processed signal to the communication unit 40. The communication unit 40 performs a predetermined process on the signal supplied from the audio control unit 60 and outputs the processed signal from the antenna 41.

  Furthermore, the voice control unit 60 also functions as a means for notifying the parent terminal 1a that an SMS short message has been received from the child terminal 1b. Specifically, the voice control unit 60 of the parent terminal 1a outputs a predetermined voice according to the control of the control unit 30 when the position information (latest data) of the child terminal 1b is notified by SMS from the child terminal 1b. This notifies the user of the parent terminal 1a. In addition, the means to alert | report may be various things, such as vibration and light emission of LED.

  Next, functions of the control unit 30a (second control unit) of the parent terminal 1a and the control unit 30b (first control unit) of the child terminal 1b will be described in detail.

  When the child terminal 1b moves and enters a cell covered by the new base station 110, the control unit 30b of the child terminal 1b uses the location data (based on the identification data acquired in synchronization with the new base station 110). When it is determined that the (sales floor information) is informed, the position data reception process is automatically started. Here, the identification data refers to a system identification number (SID) and a network identification number (NID). Based on this identification data, the control unit 30b determines whether or not it is a femto cell, and determines whether or not there is a delivery based on the BCAST_INDEX broadcast on the paging channel. Furthermore, the control unit 30b starts the process if the received distribution data is a predetermined category (lost child search).

  Then, the control unit 30b is a predetermined unit stored in the storage unit 50b (first storage unit) while in the cell covered by the base station 110 that has determined that the location data is broadcast based on the identification data. The position data of the femtocell is continuously received based on the category data, time data that is the time when the data is received is generated, and the time data is stored in the storage unit 50b as trajectory data and latest data. In addition, even when the base station 110 from which the position data is acquired is changed, the control unit 30b acquires the position data from the new base station 110 based on the predetermined category data stored in the storage unit 50b. Receive.

  Thereafter, when the control unit 30b moves from the base station 110 that has acquired the position data to a cell of another base station, the control unit 30b is synchronized with the new base station and is notified of the position data based on the acquired identification data. If it is determined that it is not, the position data reception process is terminated.

  In addition, when the communication unit 40b (first wireless communication unit) receives a request for acquiring track data from the parent terminal 1a via the base station 110, the control unit 30b stores the track stored in the storage unit 50b. Data is transmitted to the parent terminal 1a by the communication unit 40b as a response. Further, when the communication unit 40b receives the latest data acquisition request from the parent terminal 1a via the base station 110, the control unit 30b uses the latest data stored in the storage unit 50b as a response, and transmits the communication unit 40b. To the parent terminal 1a.

  On the other hand, when the control unit 30a of the parent terminal 1a receives locus data as a response to the acquisition request from the child terminal 1b by the communication unit 40a (second wireless communication unit), an image based on the locus data is displayed on the display unit 21. Display. In addition, when the communication unit 40a receives the latest data as a response to the acquisition request from the child terminal 1b, the control unit 30a causes the display unit 21 to display an image based on the latest data.

  FIG. 5 is a sequence diagram illustrating an example of processing for notifying the location information of the child terminal 1b in response to a request from the parent terminal 1a in the location management system 100 according to the present embodiment.

  In step S1, the mobile phone 1 (parent terminal 1a and child terminal 1b) performs reception setting for receiving service provision by BC-SMS. Specifically, the mobile phone 1 selects and sets whether to perform processing as the parent terminal 1a or processing as the child terminal 1b in accordance with an operation input from the user. Further, the mobile phone 1 sets and stores a predetermined category (lost child search) for selecting a message to be received and identification data (SID and NID) for identifying the base station 110 that provides the service. Store in the unit 50. As an initial setting, either or both of the parent and child, and the category and identification data may be set in advance.

  In step S2, the parent terminal 1a receives a sales floor information message including “2F women's clothing” as location data from the base station 110 of the women's clothing sales floor using BC-SMS. The parent terminal 1a outputs this message by the display unit 21 to notify the user.

  In step S3, the child terminal 1b receives the sales floor information message in the same manner as the parent terminal 1a. The child terminal 1b stores the combination of the message reception time “11:00” and the position data “2F women's clothing” as trajectory data. The child terminal 1b stores the same combination as the trajectory data as the latest data.

  In step S4, when the child terminal 1b receives a message from the same base station 110 (at the women's clothing department), the trajectory data is not updated, and the latest data is updated at the time “11:05” when the message is newly received. To do.

  In step S5, since the child terminal 1b has moved to the children's clothing department, the child terminal 1b scans radio waves from a base station different from the base station 110 that has received the position data until then, and the base station 110 having the best signal state. Synchronize with. Then, the child terminal 1b performs location registration, that is, handoff if permitted by the new base station 110. In addition, the child terminal 1b receives a sales floor information message including “2F children's clothing” as position data from the new base station 110. The child terminal 1b stores the combination of the message reception time “11:25” and the position data “2F children's clothing” in addition to the trajectory data. Further, the child terminal 1b stores the same combination as that added to the trajectory data as the latest data.

  In step S <b> 6, the child terminal 1 b hands off to the new base station 110 because it has moved to the toy counter, and receives a sales floor information message including “5F toy” as position data from the new base station 110. The child terminal 1b stores the combination of the message reception time “11:45” and the position data “5F toy” in addition to the trajectory data. Further, the child terminal 1b stores the same combination added to the trajectory data as the latest data.

  In step S7, the parent terminal 1a transmits a message indicating the position search of the child terminal to the child terminal 1b via the base station 110 by SMS as a request for acquiring the position of the child terminal 1b.

  In step S8, when the slave terminal 1b receives the slave terminal location search message by the SMS in step S7, the slave terminal 1b sends a message notifying the latest data stored in the storage unit 50 via the base station 110 via the base station 110. Transmit to the parent terminal 1a.

  In step S9, the parent terminal 1a transmits a message indicating a child terminal locus search to the child terminal 1b via the base station 110 by SMS as a request for acquiring the movement history of the child terminal 1b.

  In step S10, when the child terminal 1b receives the child terminal locus search message by the SMS in step S9, the child terminal 1b sends a message notifying the locus data stored in the storage unit 50 via the base station 110 by the SMS. Transmit to the parent terminal 1a.

  Thus, according to the present embodiment, the child terminal 1b stores the position data distributed by BC-SMS and the reception time of the position data as trajectory data and latest data. Therefore, the child terminal 1b can notify the parent terminal 1a of the trajectory data or the latest data in response to a request from the parent terminal 1a. Thereby, the user of parent terminal 1a can grasp the movement history or the latest position of child terminal 1b as needed.

  Further, the child terminal 1b does not need to transmit a radio wave such as an acquisition request to the base station 110 in order to store the trajectory data and the latest data. When the child terminal 1b notifies the parent terminal 1a of the location information, Only transmission and reception of requests and responses between the mobile terminal 1b and the child terminal 1b occur. Therefore, the power consumption of the parent terminal 1a and the child terminal 1b can be suppressed.

  Furthermore, since the distributed location data differs for each femtocell having a narrow communication area compared to a normal macrocell, the child terminal 1b can store the trajectory data and the latest data, for example, in units of shopping center sales floors. Thereby, the position management system 100 can detect the position of the child terminal 1b with high accuracy even indoors.

  Further, according to the present embodiment, the mobile phone 1 can determine that it is within the service area of the location management system 100 based on the identification data of the base station 110 and the broadcast information (BCAST_INDEX), and further, based on predetermined category data. Only necessary distribution data can be received. Then, the mobile phone 1 automatically starts processing in response to the location registration in the base station 110 (femtocell) in the service area, and goes out of the service area (moves to the macrocell and registers location). Since the process can be automatically terminated, user convenience is improved.

Second Embodiment
Hereinafter, a second embodiment of the present invention will be described. In addition, the same code | symbol is attached | subjected about the structure similar to 1st Embodiment, and description is abbreviate | omitted or simplified.

  In the present embodiment, the processing contents in the control unit 30a (second control unit) of the parent terminal 1a and the control unit 30b (first control unit) of the child terminal 1b are different from those in the first embodiment. That is, the control unit 30b automatically notifies the parent terminal 1a of the position information of the child terminal 1b regardless of the request from the parent terminal 1a. The parent terminal 1a stores in advance the identification information of the child terminal 1b, and the child terminal 1b stores in advance the identification information of the parent terminal 1a.

  In the first embodiment, it is not necessary to store the trajectory data and the latest data in the parent terminal 1a. In the present embodiment, at least the latest data among the position data received from the base station 110 by the parent terminal 1a is stored in the storage unit 50a (second storage unit) of the parent terminal 1a.

  When the cell of the base station 110 where the child terminal 1b is located is changed to acquire new position data, that is, when the position data in the latest data is changed, the control unit 30b of the child terminal 1b is changed. The latest data is transmitted to the parent terminal 1a by SMS by the communication unit 40b as a bulletin.

  Further, when the communication unit 40b becomes unable to continuously receive the position data, the control unit 30b transmits data indicating that reception is impossible including at least the latest data to the parent terminal 1a by SMS using the communication unit 40b. That is, when the control unit 30b is unable to receive a message of a predetermined category (lost child search) by BC-SMS for a predetermined time or when detecting the above-mentioned “BCAST_INDEX = 0”, the child terminal 1b is out of the service area ( It is determined that the user has moved to a location outside the shopping center, and the parent terminal 1a is notified.

  On the other hand, when the control unit 30a of the parent terminal 1a receives the breaking news from the child terminal 1b by the communication unit 40a, the control unit 30a notifies the display unit 21 of the image based on the latest data after notifying that the breaking news has been received. Display.

  At this time, the control unit 30a is the same as the latest data (second latest data) of the parent terminal 1a in which the latest data (first latest data) of the child terminal 1b received as the bulletin is stored in the storage unit 50a. It is determined whether or not there is. The control unit 30a does not perform the notification process when the first latest data and the second latest data are the same, and performs the notification process when they are different.

  Here, the notification process refers to various notification operations to the user, such as pop-up display on the display unit 21, sound output by the sound control unit 60, vibration operation, LED light emission, and the like.

  FIG. 6 is a sequence diagram illustrating an example of processing for notifying the parent terminal 1a of the position information of the child terminal 1b in response to the event of the child terminal 1b in the position management system 100 according to the present embodiment.

  In step S11, the parent terminal 1a and the child terminal 1b perform reception setting for receiving service provision by BC-SMS, as in step S1 of FIG. 5 in the first embodiment. However, the parent terminal 1a is different from the first embodiment in that the position data is received.

  In step S12, the parent terminal 1a receives a sales floor information message including “2F female clothing” as location data from the base station 110 of the women's clothing sales floor using BC-SMS. The parent terminal 1a stores the combination of the message reception time “11:00” and the position data “2F women's clothing” as the latest data.

  In step S13, the child terminal 1b receives the sales floor information message in the same manner as the parent terminal 1a. The child terminal 1b stores the combination of the message reception time “11:00” and the position data “2F women's clothing” as trajectory data. The child terminal 1b stores the same combination as the trajectory data as the latest data.

  In step S <b> 14, the child terminal 1 b is handed off by having moved to the children's clothing department, and receives a sales floor information message including “2F children's clothing” as position data from the new base station 110. The child terminal 1b stores the combination of the message reception time “11:25” and the position data “2F children's clothing” in addition to the trajectory data. Further, the child terminal 1b stores the same combination as that added to the trajectory data as the latest data.

  In step S15, the child terminal 1b determines that the child terminal 1b has moved because the position data received by BC-SMS has changed from “2F women's clothing” to “2F children's clothing”. A message for notifying movement is transmitted to the terminal 1a. This message includes at least the latest data stored in the child terminal 1b.

  In step S16, the parent terminal 1a compares the position data notified from the child terminal 1b in step S15 with the position data (latest data) stored in the parent terminal 1a. As a result of comparison, since both do not match, the parent terminal 1a informs the user that the child terminal 1b has moved based on the received message. Specifically, the parent terminal 1a displays the latest data or locus data on the display unit 21 in response to a predetermined operation input from the user following notification of an incoming message (for example, ringing tone, vibration, light emission, etc.). Display.

  In step S <b> 17, the parent terminal 1 a receives the sales floor information message including “5F toy” as position data from the new base station 110 at the handoff destination due to the movement to the toy sales floor. The parent terminal 1a stores the combination of the message reception time “11:45” and the position data “5F toy” as the latest data.

  In step S <b> 18, the child terminal 1 b moves with the parent terminal 1 a and receives a sales floor information message from the new base station 110. The child terminal 1b stores the combination of the message reception time “11:45” and the position data “5F toy” as trajectory data. The child terminal 1b stores the same combination as the trajectory data as the latest data.

  In step S19, the child terminal 1b determines that the child terminal 1b has moved because the position data received by BC-SMS has changed from “2F children's clothing” to “5F toys”. A message for notifying movement is transmitted to the terminal 1a.

  At this time, the parent terminal 1a compares the position data notified from the child terminal 1b with the position data (latest data) stored in the parent terminal 1a, as in step S16. As a result of the comparison, the two match, and it can be determined that the parent terminal 1a and the child terminal 1b are in the same sales floor. Therefore, the parent terminal 1a does not notify the user.

  In step S20, when the parent terminal 1a receives a message from the same base station 110 (at the toy store), it updates the latest data at the time “12:00” when the message is newly received. On the other hand, when the child terminal 1b moves out of the femtocell range and hands off to the base station 210 of the macrocell, the position data by BC-SMS is not transmitted, so that reception is not performed and the latest data is not updated.

  In step S21, the child terminal 1b determines that the mobile terminal 1b has moved out of the service area when a predetermined time has elapsed without receiving a message (position data) by BC-SMS, and sends the message to the parent terminal 1a via the base station 210 of the macro cell. Send a message to notify you that you are out of service range. This message includes at least the latest data stored in the child terminal 1b.

  In step S22, the parent terminal 1a notifies the user that the child terminal 1b has moved out of the service area based on the message received in step S21. Specifically, the parent terminal 1a displays a message indicating the latest data on the display unit 21 in response to a predetermined operation input from the user following the message incoming notification (for example, ringing tone, vibration, light emission, etc.). Do.

  As described above, according to the present embodiment, the child terminal 1b stores the position data distributed by BC-SMS and the reception time of the position data as the trajectory data and the latest data. Further, the child terminal 1b can notify the parent terminal 1a of the trajectory data or the latest data in response to an event such as a change in position data and no reception of position data. Thereby, the user of the parent terminal 1a can grasp the movement history or the latest position of the child terminal 1b in a timely manner.

  Furthermore, the parent terminal 1a notifies the user when the latest data stored in the parent terminal 1a and the child terminal 1b are different. Therefore, since the notification is given when the user (child) carrying the child terminal 1b is separated from the user (parent) carrying the parent terminal 1a, the position management system 100 is useful for preventing or searching for lost children. Information can be provided immediately.

  As mentioned above, although embodiment of this invention was described, this invention is not restricted to embodiment mentioned above. The effects described in the embodiments of the present invention are only the most preferable effects resulting from the present invention, and the effects of the present invention are limited to those described in the embodiments of the present invention. is not.

  In the above-described embodiment, the parent terminal 1a and the child terminal 1b are provided separately, but the present invention is not limited to this. In the mobile phone 1, only the parent setting or the child setting may be set, or both the parent and child settings may be set. The number of child terminals 1b with respect to the parent terminal 1a and the number of parent terminals 1a with respect to the child terminals 1b may be plural.

  In addition, the mobile terminal device according to the present invention is not limited to the mobile phone 1, but is a dedicated terminal for handling position data without a voice call function, PHS (registered trademark; Personal Handyphone System), PDA (Personal Digital Assistant). In addition, the present invention can be applied to various portable terminal devices such as game machines, navigation devices, and personal computers.

1 Mobile phone (mobile terminal device)
1a Parent terminal (second portable terminal device)
1b Child terminal (first mobile terminal device)
DESCRIPTION OF SYMBOLS 11 Operation part 21 Display part 30 Control part 30a Control part (2nd control part)
30b Control unit (first control unit)
40 communication unit 40a communication unit (second wireless communication unit)
40b Communication unit (first wireless communication unit)
41 antenna 50 storage unit 50a storage unit (second storage unit)
50b storage unit (first storage unit)
60 Voice control unit 100 Location management system 110 Base station

Claims (14)

A mobile terminal device capable of communicating with a plurality of base stations each reporting different location data,
A wireless communication unit that is synchronized with one of the plurality of base stations and receives a signal from the synchronized base station;
A storage unit that stores a plurality of the position data received by the wireless communication unit from the synchronized base station together with reception time data;
A control unit that transmits a plurality of the position data stored in the storage unit and the reception time data corresponding to each position data as trajectory data to another portable terminal device by the wireless communication unit; A portable terminal device.   The said control part transmits the said trace data to the said other portable terminal device, when the acquisition request of the said locus data from the said other portable terminal device is received by the said wireless communication part. Mobile terminal device.   The storage unit, when the position data is continuously received from the same base station by the wireless communication unit, only the oldest combination among the continuous combinations of the position data and the reception time data is the trajectory data. The portable terminal device according to claim 1 or 2 stored as. The location data broadcast from the plurality of base stations is associated with predetermined category data in common,
The storage unit stores the predetermined category data in advance,
4. The control unit according to claim 1, wherein the control unit receives the position data based on the predetermined category data stored in the storage unit when the synchronized base station is changed. 5. The portable terminal device of Claim 1.   The control unit determines whether the position data is broadcast based on the identification data of the base station acquired from the synchronized base station, and determines that the position data is broadcast The mobile terminal device according to claim 4, wherein the position data is received based on the predetermined category data stored in the storage unit while being synchronized with a base station.   When the control unit determines that the position data is not broadcast based on the identification data acquired from the newly synchronized base station when the synchronized base station is changed, the position data The mobile terminal device according to claim 5, wherein reception of the mobile phone ends.   The control unit determines that the position data is broadcast based on the identification data acquired from a new base station when the synchronized base station is changed or a new position is registered. The mobile terminal device according to claim 5 or 6, wherein the reception of the position data is started when the position data is received. When the storage unit continuously receives the position data, the storage unit stores the latest combination of the continuous position data and the reception time data as the latest data,
The control unit according to any one of claims 1 to 7, wherein the control unit transmits the latest data to the other mobile terminal device by the wireless communication unit in response to a request from the other mobile terminal device. The portable terminal device described.   When the synchronized base station is changed, the control unit transmits the position data acquired from the newly synchronized base station and the reception time data of the position data to the other portable terminal by the wireless communication unit. The mobile terminal device according to any one of claims 1 to 8, wherein the mobile terminal device transmits the information to the device.   The said control part transmits the data which show an unreceivable to said other portable terminal device by the said radio | wireless communication part, when it becomes impossible to receive the said position data continuously by the said radio | wireless communication part. The mobile terminal device according to any one of the above. A location management system that includes a plurality of base stations that broadcast different location data, and a plurality of mobile terminal devices that can communicate with the base station,
The first portable terminal device
A first wireless communication unit that is synchronized with one of the plurality of base stations and receives a signal from the synchronized base station;
A first storage unit for storing a plurality of the position data received by the first wireless communication unit from the synchronized base station together with reception time data;
A plurality of the position data stored in the first storage unit and the reception time data corresponding to each position data are used as trajectory data to the second portable terminal device by the first wireless communication unit. A first control unit for transmitting,
The second portable terminal device is
A second wireless communication unit that performs position registration with respect to one of the plurality of base stations and performs wireless communication with the base station that has registered the position;
A display unit;
And a second control unit configured to display an image based on the trajectory data on the display unit when the trajectory data is received from the first portable terminal device by the second wireless communication unit. When the first storage unit continuously receives the position data, the first storage unit stores the latest combination among the continuous combinations of the position data and the reception time data as first latest data,
In response to a request from the second mobile terminal device, the first control unit transmits the first latest data to the second mobile terminal device by the first wireless communication unit,
When the second wireless communication unit receives the first latest data from the first portable terminal device, the second control unit displays an image based on the first latest data on the display unit. The position management system according to claim 11. The first control unit is a combination of the position data acquired from a newly synchronized base station and the reception time data of the position data when the synchronized base station is changed. The latest data is transmitted to the second portable terminal device by the first wireless communication unit as a bulletin,
When the second control unit receives the bulletin from the first portable terminal device by the second wireless communication unit, the second control unit notifies that the bulletin has been received, and then as the bulletin upon request, The location management system according to claim 11 or 12, wherein an image based on the first latest data is displayed on the display unit. When the second mobile terminal device continuously receives the location data by the second wireless communication unit, the second combination of the location data and the reception time data that has been received is changed to the second combination. A second storage unit for storing the latest data;
When the second control unit receives the bulletin from the first portable terminal device by the second wireless communication unit, the first latest data as the bulletin is stored in the second storage unit If the second latest data is the same as the second latest data, the fact that the bulletin has been received is not notified, and if it is different from the second latest data, the fact that the bulletin has been received is notified. The position management system according to claim 13, wherein an image based on the first latest data can be displayed on the display unit.

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