JP4334390B2 - Mobile terminal narrowing device and mobile terminal narrowing program - Google Patents

Description

  The present invention relates to a mobile terminal narrowing device and a mobile terminal narrowing program, and more particularly to a mobile terminal narrowing device and a mobile terminal narrowing program for narrowing down a specific terminal moving together with a monitoring target terminal from a plurality of terminals.

A terminal such as a mobile phone can specify the area in which the terminal is accommodated, and can track the behavior of the person who owns the terminal.
Conventionally, there is a terminal position tracking system that quickly and efficiently tracks the position of a terminal (see, for example, Patent Document 1). In this terminal position tracking system, by storing a predetermined number of terminal positions in time series, the current position of the terminal can be predicted and the current position of the terminal can be confirmed quickly and efficiently. Yes. In addition, there is a tracking system that can easily acquire the current position of the tracking target and the trajectory up to the current position (see, for example, Patent Document 2). In this tracking system, a mobile ID tag having a GPS function is mounted on the tracking target, and the current position of the tracking target and the trajectory up to the tracking target can be easily acquired.

  By the way, for example, if the kidnapped victim possesses a monitoring target terminal such as a mobile phone, the victim's whereabouts can be tracked by tracking the monitoring target terminal with the above system. However, a kidnapper cannot be identified. If a specific terminal such as a mobile phone possessed by the kidnapper can be grasped, information on the kidnapper can be obtained.

Kidnappers generally act with the victim. Therefore, if a specific terminal moving with a monitoring target terminal can be grasped from a plurality of terminals, information on the kidnapper can be obtained.
JP 2000-23236 (paragraph numbers [0007] to [0026], FIGS. 1 to 5) JP 2002-329294 A (paragraph numbers [0009] to [0022], FIGS. 1 to 3)

However, in the conventional tracking system, the monitoring target terminals are tracked, but the specific terminals moving together with the monitoring target terminals from a plurality of terminals are not narrowed down.
The present invention has been made in view of the above points, and by collecting the history of terminals that are always present in the same area as the area where the monitoring target terminal exists, the movement of the monitoring target terminal is shared. It is an object of the present invention to provide a mobile terminal narrowing device and a mobile terminal narrowing program that can narrow down a specific terminal that is selected.

  In the present invention, in order to solve the above problem, in the mobile terminal screening device 1 for narrowing down the specific terminal 3b moving together with the monitoring target terminal 3a from a plurality of terminals, the telephone number for receiving the telephone number of the monitoring target terminal 3a from the operator From the home memory station 2 that manages the receiving means 1a and the location information indicating the area where the terminal is located in correspondence with the telephone number of the terminal, the location information of the monitored terminal 3a is obtained from the telephone of the monitored terminal 3a. Position information acquisition means 1b for acquiring from the number, telephone number acquisition means 1c for acquiring the telephone number of the terminal having the same position information as the monitoring target terminal 3a from the home memory station 2, and position information always the same as the monitoring target terminal 3a There is provided a mobile terminal refining device characterized by having a telephone number holding means 1d for holding a telephone number of a terminal having.

  According to such a mobile terminal screening apparatus 1, the telephone number of the monitoring target terminal 3a is received from the operator, and the position information of the monitoring target terminal 3a is acquired from the home memory station 2 from the received telephone number. And the telephone number of the terminal which has the same positional information as the monitoring object terminal 3a is acquired from the home memory station 2 from the acquired positional information, and the telephone number of the terminal which always has the same positional information as the monitoring object terminal 3a is held.

  In the mobile terminal narrowing-down device of the present invention, since the telephone number of the terminal that always has the same position information as the monitoring target terminal is held from a plurality of terminals, the specific terminal moving together with the monitoring target terminal You can narrow down.

Hereinafter, the principle of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a principle diagram illustrating the principle of the present invention.
As shown in the figure, the mobile terminal narrowing device 1 includes a telephone number receiving unit 1a, a location information acquiring unit 1b, a telephone number acquiring unit 1c, and a telephone number holding unit 1d. The home memory station 2 manages location information indicating the region where the terminal exists in association with the telephone number of the terminal. The mobile terminal narrowing device 1 is connected to the home memory station 2 via, for example, a dedicated line.

The telephone number receiving unit 1a receives the telephone number of the monitoring target terminal 3a from the operator.
The position information acquisition unit 1b acquires the position information of the monitoring target terminal 3a from the home memory station 2 from the telephone number of the monitoring target terminal 3a received by the telephone number receiving unit 1a.

The telephone number acquisition unit 1c acquires from the home memory station 2 the telephone number of the terminal having the same position information as the position information of the monitoring target terminal 3a acquired by the position information acquisition unit 1b.
The telephone number holding means 1d holds the telephone number of a terminal that always has the same position information as the monitored terminal 3a.

  That is, the mobile terminal screening device 1 receives the telephone number of the monitoring target terminal 3a from the operator, and acquires the position information of the monitoring target terminal 3a from the home memory station 2 from the received telephone number. Then, from the acquired position information, the telephone number of the terminal having the same position information as the monitoring target terminal 3a is acquired from the home memory station 2, and the telephone number of the terminal always having the same position information as the monitoring target terminal 3a is obtained. Hold. Thereby, it is possible to narrow down the specific terminals 3b that are moving together with the monitoring target terminal 3a.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 2 is a diagram showing a system configuration example according to the embodiment of the present invention.
As shown in the figure, the mobile terminal screening server 10 is connected to terminal devices 31a, 32a, and 33a via a network 50. Further, the mobile terminal screening server 10 is connected to the home memory station 40 by, for example, a dedicated line. The terminal device 31a is a terminal device owned by Koshinsho 31. The terminal device 32a is a terminal device owned by the security company 32. The terminal device 33a is a terminal device owned by the police. The monitoring target terminal 21 and the specific terminal 22 are mobile terminals, for example, mobile phones.

  The home memory station 40 is a station that manages cells in which terminals are accommodated. When the home memory station 40 receives the telephone number of the terminal from the mobile terminal screening server 10, the home memory station 40 returns the cell of the terminal having the telephone number to the mobile terminal screening server 10. When the home memory station 40 receives a cell from the mobile terminal screening server 10, the home memory station 40 returns the telephone numbers of all terminals accommodated in the received cell to the mobile terminal screening server 10.

  When the system shown in the figure receives the telephone number of the monitoring target terminal 21 from an operator who operates the terminal devices 31a, 32a, and 33a, the specific terminal 22 acting together with the monitoring target terminal 21 can be grasped from the received telephone number. . For example, the monitoring target terminal 21 is a mobile phone possessed by a victim kidnapped by a kidnapper. The specific terminal 22 is assumed to be a mobile phone possessed by the kidnapper. Then, in the system shown in the figure, the specific terminal 22 moving together with the monitoring target terminal 21 can be narrowed down from a plurality of terminals by receiving the telephone number of the monitoring target terminal 21 from the operator. Thereby, the kidnapper can be estimated from the specific terminal 22.

  More specifically, the telephone number of the monitoring target terminal 21 possessed by the victim is received from the terminal device 31a of Koshinsho 31, the terminal device 32a of the security company 32, or the terminal device 33a of the police 33. The mobile terminal screening server 10 receives the telephone number of the monitoring target terminal 21 via the network 50 and acquires the cell of the monitoring target terminal 21 from the home memory station 40. The mobile terminal screening server 10 continuously acquires the telephone numbers of all terminals in the same area as the monitoring target terminal 21 based on the acquired cell. And only the telephone number of the terminal always in the same area as the monitoring target terminal 21 is held. As a result, the owner (owner) of the specific terminal 22 that is always in the same area as the monitoring target terminal 21 can be estimated as a kidnapper.

Next, the hardware configuration of the mobile terminal screening server 10 will be described.
FIG. 3 is a block diagram showing a hardware configuration of the mobile terminal screening server.
The mobile terminal screening server 10 shown in the figure is entirely controlled by a CPU (Central Processing Unit) 10a. A random access memory (RAM) 10b, a hard disk drive (HDD) 10c, a graphic processing device 10d, an input interface 10e, and a communication interface 10f are connected to the CPU 10a via a bus 10g.

  The RAM 10b temporarily stores at least a part of an OS (Operating System) program to be executed by the CPU 10a and an application for narrowing down the specific terminal 22 that moves together with the monitoring target terminal 21. The RAM 10b stores various data necessary for processing by the CPU 10a. The HDD 10c stores an OS, application programs, and the like.

  A monitor 10h is connected to the graphic processing device 10d. The graphic processing device 10d displays an image on the display screen of the monitor 10h in accordance with a command from the CPU 10a. A keyboard 10i and a mouse 10j are connected to the input interface 10e. The input interface 10e transmits a signal transmitted from the keyboard 10i or the mouse 10j to the CPU 10a via the bus 10g.

  The communication interface 10f is connected to the network 50 and a dedicated line. The communication interface 10f can communicate with the terminal devices 31a, 32a and 33a connected to the network 50 and the home memory station 40 connected to the dedicated line according to a command from the CPU 10a.

  With the hardware configuration described above, the specific terminal 22 that moves together with the monitoring target terminal 21 can be narrowed down from a plurality of terminals. Note that the terminal devices 31a, 32a, and 33a also have the same hardware configuration as in FIG.

Next, functions of the mobile terminal screening server 10 will be described.
FIG. 4 is a functional block diagram of the mobile terminal screening server.
As shown in the figure, the mobile terminal screening server 10 includes a tracking request reception unit 11, a collection opportunity management unit 12, a collection opportunity management DB (DB: Data Base) 12a, a location registration notification management unit 13, a terminal area extraction unit 14, and an area. The information management DB 14 a, the same area terminal extraction unit 15, the terminal history management unit 16, the terminal history DB 16 a, and the monitoring result notification unit 17 are included. The collection opportunity management DB 12a, the area information management DB 14a, and the terminal history DB 16a are constructed, for example, in the storage device of the RAM 10b or the HDD 10c in FIG.

  The tracking request receiving unit 11 receives the telephone number of the monitoring target terminal 21 to be monitored from the terminal devices 31a, 32a, and 33a. Further, the tracking request receiving unit 11 receives a narrowing method of the specific terminal 22 moving with the monitoring target terminal 21 from the terminal devices 31a, 32a, and 33a.

  There are three types of narrowing down methods. The first method is a method of narrowing down the specific terminals 22 each time a telephone number is transmitted from the terminal devices 31a, 32a, and 33a. The second method is a method of receiving a narrowing condition such as a period for narrowing down the specific terminal 22 from the terminal devices 31a, 32a, and 33a, and narrowing down the specific terminal 22 according to the received narrowing condition. The third method is a method of narrowing down the specific terminals 22 when the monitoring target terminal 21 is handed over in addition to the first method or the second method.

  The tracking request reception unit 11 calls the terminal area extraction unit 14 when the first method is designated. When the second method is designated, the collection opportunity management unit 12 is called. When the third method is designated, the location registration notification management unit 13 is called.

  The collection opportunity management unit 12 is activated by a call from the tracking request receiving unit 11 and receives the telephone number of the monitoring target terminal 21 and the narrow-down condition from the tracking request receiving unit 11. The collection opportunity management unit 12 stores the received telephone numbers and narrowing conditions in the collection opportunity management DB 12a. The narrowing conditions include, for example, a monitoring cycle for monitoring a cell in which the monitoring target terminal 21 exists, the number of times of monitoring, or a monitoring time.

Here, a data configuration example of the collection opportunity management DB 12a will be described.
FIG. 5 is a diagram illustrating a data configuration example of the collection opportunity management DB.
As shown in the figure, the collection opportunity management DB 12a is provided with columns of a telephone number, a monitoring cycle, the number of monitoring times, a monitoring start date and time, and a monitoring end date and time.

  In the telephone number column, the telephone number of the terminal to be monitored is stored. The period for monitoring the terminal is stored in the monitoring period column. The number of monitoring times of the terminal is stored in the monitoring number column. The date and time of starting monitoring of the terminal is stored in the monitoring start date and time column. The monitoring end date and time column stores the date and time when terminal monitoring ends. Note that “−” stored in each column indicates that no condition is specified.

  In the example of FIG. 5, 080-xxxx-xxxx is stored in the top column of the telephone number. The monitoring period for monitoring the terminal of this telephone number is 3 minutes. The monitoring start date and time is December, yy date, 2003, 18:00:00, and the start end date and time is 2003, December, zz date, 09:00:00. Note that the number of times of monitoring is-, and no condition is specified. That is, it indicates that monitoring is performed from the designated monitoring start date and time to the monitoring end date and time.

  The collection opportunity management unit 12 calls the terminal area extraction unit 14 in accordance with a narrowing condition as shown in the collection opportunity management DB 12a of FIG. At this time, the telephone number of the terminal to be monitored is transmitted to the terminal area extraction unit 14.

  The location registration notification manager 13 is activated by a call from the tracking request receiver 11 and receives a telephone number from the tracking request receiver 11. The location registration notification management unit 13 registers the received telephone number in the home memory station 40.

  When the telephone number is registered by the location registration notification management unit 13, the home memory station 40 transmits the telephone number of the registered telephone number to the location registration notification management unit 13 when the terminal with the registered telephone number is handed over. When the location registration notification management unit 13 receives the telephone number of the handed over terminal from the home memory station 40, the location registration notification management unit 13 calls the terminal area extraction unit 14. At this time, the telephone number received from the home memory station 40 is transmitted to the terminal area extracting unit 14.

  When the first method described above is designated, the terminal area extracting unit 14 is activated from the tracking request receiving unit 11 and the telephone number of the monitoring target terminal 21 is transmitted. In addition, when the second method is specified, the terminal area extraction unit 14 is activated according to the narrowing-down condition from the collection opportunity management unit 12, and the telephone number of the monitoring target terminal 21 is transmitted. In addition, when the third method is specified, the terminal area extraction unit 14 is activated from the location registration notification management unit 13 when a handover is performed, and the telephone number of the monitored terminal 21 that has been handed over is transmitted. It will be.

  The terminal area extraction unit 14 acquires from the home memory station 40 the cell containing the monitoring target terminal 21 from the received telephone number. By the way, the range of a cell changes with every carrier with which the terminal has contracted. Therefore, the terminal area extraction unit 14 refers to the area information management DB 14a based on the acquired cell, and acquires an area indicating in which region the monitoring target terminal 21 is accommodated regardless of the carrier.

Here, the relationship between cells and areas and the area information management DB 14a will be described. First, the relationship between cells and areas will be described.
6A and 6B are diagrams for explaining the relationship between cells and areas. FIG. 6A is a diagram showing cells, and FIG. 6B is a diagram showing cells and areas.

  Cells C1 to C6 shown in FIG. 6A and FIG. 6B show cells in the base station X of the carrier A. Cells Ca to Cf indicate cells at the base station Y of the carrier B. For this reason, the position of the terminal contracted with the carrier A is indicated by the cells C1 to C6, and the position of the terminal contracted with the carrier B is indicated by the cells Ca to Cf. Expression changes. For example, the area where the cell C4 and the cell Cf overlap is expressed differently even though it is the same place.

  In the area shown in FIG. 6B, the area range is determined regardless of the cell of each carrier. For example, as shown in the figure, the area partitions the area into a grid. The above-described region where the cell C4 and the cell Cf overlap can be expressed as area 1 in a unified manner.

Next, a data configuration example of the area information management DB 14a will be described.
FIG. 7 is a diagram illustrating a data configuration example of the area information management DB.
As shown in the figure, the area information management DB 14a has columns of area name, base station X cell, and base station Y cell.

  The name assigned to the area is stored in the area name column. The cell of base station X stores the cell of base station X corresponding to the area stored in the area name column. In the cell column of the base station Y, the cell of the base station Y corresponding to the area stored in the area name column is stored.

Referring to FIG. 6, the cells of base station X corresponding to area name area 1 in FIG. 7 are C3, C4, and C5. The cells of the base station Y corresponding to the area name area 1 are Ce and Cf.
In the example of FIGS. 6 and 7, it is assumed that the terminal area extraction unit 14 acquires the cell C3 of the carrier A from the home memory station 40. The terminal area extraction unit 14 refers to the area information management DB 14a and acquires the area 1 corresponding to the cell C3. Thereby, the accommodation area of the terminal can be expressed by an area independent of the carrier.

When the terminal area extracting unit 14 acquires the area, the terminal area extracting unit 14 calls the same area terminal extracting unit 15. At this time, the acquired area is transmitted to the same area terminal extraction unit 15.
The same area terminal extraction unit 15 is activated by a call from the terminal area extraction unit 14 and receives an area from the terminal area extraction unit 14. The same area terminal extracting unit 15 acquires the telephone number of the terminal existing in the received area from the home memory station 40.

  The same area terminal extraction unit 15 refers to the area information management DB 14a and acquires a cell of each carrier corresponding to the received area. The same area terminal extraction unit 15 acquires the telephone number of the terminal accommodated in the acquired cell from the home memory station 40. That is, the telephone number of the terminal accommodated in the same area as the area where the monitoring target terminal 21 is accommodated is acquired from the home memory station 40. Thereby, the telephone number of the terminal existing in the same area as the monitoring target terminal 21 can be acquired regardless of the carrier.

  For example, if the same area terminal extraction unit 15 receives area 1 from the terminal area extraction unit 14, the cells C3, C4, C5 of the base station X of the carrier A are referred to with reference to the area information management DB 14a of FIG. The cells Ce and Cf of the base station Y of the carrier B are acquired. Then, the same area terminal extracting unit 15 acquires the telephone numbers of the terminals accommodated in the cells C3, C4, C5, Ce, and Cf from the home memory station 40. Thereby, the telephone numbers of all the terminals existing in the area 1 can be acquired regardless of the carrier.

  The same area terminal extraction unit 15 activates the terminal history management unit 16 when acquiring the telephone number of the terminal accommodated in the cell. At this time, the same area terminal extraction unit 15 transmits the acquired telephone number to the terminal history management unit 16.

  The terminal history management unit 16 is activated by a call from the same area terminal extraction unit 15 and receives a telephone number from the same area terminal extraction unit 15. The terminal history management unit 16 stores the received telephone number in the terminal history DB 16a together with the received date and time. At this time, the terminal history management unit 16 stores the same telephone number in the terminal history DB 16a as the telephone number stored in the previous terminal history DB 16a. That is, when the telephone number of the terminal that was previously in the same area as the monitoring target terminal 21 is also in the same area as the monitoring target terminal 21 this time, the received telephone number is stored in the terminal history DB 16a. . As a result, terminals that are always present in the same area as the monitored terminal 21 remain in the terminal history DB 16a. For example, the telephone of the specific terminal 22 owned by the kidnapper who will be in the same place as the kidnapped person Numbers are narrowed down.

Here, a data configuration example of the terminal history DB 16a will be described.
FIG. 8 is a diagram illustrating a data configuration example of the terminal history DB.
As shown in the figure, the terminal history DB 16a has columns for date and time and candidate terminals. The date and time column stores the date and time when the telephone number of the terminal in the same area as the monitored terminal 21 is acquired (received by the terminal history management unit 16). In the column of candidate terminals, the telephone number was stored last time, and when the same telephone number is acquired this time, the telephone number is stored.

  In the example of FIG. 8, it is assumed that four telephone numbers are stored at 18:30 on December yy, 2003. Then, it is assumed that the terminal history management unit 16 receives a plurality of telephone numbers at 18:35:00 on December yy, 2003. The terminal history management unit 16 stores only the same telephone number as the telephone number stored in the previous December yy date 18:30:30 in the terminal history DB 16a among the acquired telephone numbers. As a result, only the telephone numbers of the terminals that are always present in the same area as the monitoring target terminal 21 remain in the terminal history DB 16a.

  When the terminal history management unit 16 stores the telephone number in the terminal history DB 16a, the monitoring result notification unit 17 monitors the information (date and time, telephone number of the candidate terminal) stored in the terminal history DB 16a by the monitor 10h or the terminal device 31a, This is displayed on the monitors 32a and 33a. Further, the information stored in the terminal history DB 16a is displayed on the monitors of the terminal devices 31a, 32a and 33a in response to requests from the terminal devices 31a, 32a and 33a.

Hereinafter, an example of a flow of processing for narrowing down mobile terminals will be described with reference to a sequence diagram.
FIG. 9 is a sequence diagram illustrating a flow of narrowing down terminals when the first method is designated.

  In step S1, the tracking request receiving unit 11 receives the telephone number of the monitoring target terminal 21 and the terminal narrowing method from the terminal devices 31a, 32a, and 33a. This time, the narrowing-down method is the first method.

  In step S <b> 2, the tracking request receiving unit 11 calls the terminal area extracting unit 14. At this time, the tracking request receiving unit 11 transmits the telephone numbers received from the terminal devices 31a, 32a, and 33a to the terminal area extracting unit 14. The terminal area extraction unit 14 is activated by the tracking request reception unit 11 and inquires of the home memory station 40 about the cell in which the monitoring target terminal 21 is accommodated from the received telephone number of the monitoring target terminal 21.

In step S <b> 3, the home memory station 40 returns the cell of the telephone number inquired to the mobile terminal screening server 10.
In step S <b> 4, the terminal area extraction unit 14 receives the cell in which the monitoring target terminal 21 is accommodated from the home memory station 40. The terminal area extraction unit 14 refers to the area information management DB 14a and acquires an area corresponding to the received cell. The terminal area extraction unit 14 calls the same area terminal extraction unit 15 and transmits the acquired area.

  In step S <b> 5, the same area terminal extraction unit 15 is activated by a call from the terminal area extraction unit 14 and receives an area in which the monitoring target terminal 21 is accommodated from the terminal area extraction unit 14. The same area terminal extraction unit 15 refers to the area information management DB 14a and acquires a cell of each carrier corresponding to the received area.

  In step S <b> 6, the same area terminal extraction unit 15 inquires of the home memory station 40 about the telephone numbers of all terminals accommodated in the acquired cells of each carrier. That is, the home memory station 40 is inquired about the telephone number of the terminal accommodated in the same area as the area where the monitoring target terminal 21 is accommodated.

  In step S <b> 7, the same area terminal extraction unit 15 receives the telephone number of the terminal existing in the same area as the monitoring target terminal 21 from the home memory station 40. The same area terminal extraction unit 15 calls the terminal history management unit 16 and transmits the received telephone number.

  In step S <b> 8, the terminal history management unit 16 is activated by a call from the same area terminal extraction unit 15 and receives a telephone number of a terminal existing in the same area as the monitoring target terminal 21. And the terminal history management part 16 stores only the same telephone number as the telephone number stored in terminal history DB16a last time in terminal history DB16a.

  In step S9, the terminal history management unit 16 refers to the terminal history DB 16a, and extracts the narrowed telephone numbers, that is, the telephone numbers stored in the terminal history DB 16a most recently.

  In step S10, the monitoring result notifying unit 17 displays the telephone number extracted in step S9 on the monitor 10h or the monitors of the terminal devices 31a, 32a, and 33a. Moreover, the monitoring result notification part 17 displays the telephone number stored in terminal history DB16a on the monitor of terminal device 31a, 32a, 33a according to the request | requirement from terminal device 31a, 32a, 33a.

  In the narrowing down by the first method, the above steps are performed each time a telephone number is received from the terminal devices 31a, 32a, 33a, and the terminals in the same area as the monitoring target terminal 21 are narrowed down.

FIG. 10 is a sequence diagram showing a flow of narrowing down terminals when the second method is designated.
In step S21, the tracking request receiving unit 11 receives the telephone number of the monitoring target terminal 21 and the terminal narrowing method from the terminal devices 31a, 32a, and 33a. In this case, since the narrowing-down method is the second method, the terminal narrowing-down condition is also received.

  In step S <b> 22, the tracking request reception unit 11 calls the collection opportunity management unit 12. At this time, the tracking request receiving unit 11 transmits the telephone number and the narrow-down condition to the collection opportunity management unit 12. The collection opportunity management unit 12 stores the received telephone numbers and narrowing conditions in the collection opportunity management DB 12a, and calls the terminal area extraction unit 14 according to the narrowing conditions.

  In step S <b> 23, the terminal area extraction unit 14 is activated by the collection opportunity management unit 12, and inquires of the home memory station 40 about the cell accommodated in the monitoring target terminal 21 from the telephone number of the monitoring target terminal 21.

In step S24, the home memory station 40 returns the cell of the telephone number for which the inquiry has been made to the mobile terminal screening server 10.
In step S <b> 25, the terminal area extraction unit 14 receives the cell in which the monitoring target terminal 21 is accommodated from the home memory station 40. The terminal area extraction unit 14 refers to the area information management DB 14a and acquires an area corresponding to the received cell. The terminal area extraction unit 14 calls the same area terminal extraction unit 15 and transmits the acquired area.

  In step S <b> 26, the same area terminal extraction unit 15 is activated by a call from the terminal area extraction unit 14 and receives an area in which the monitoring target terminal 21 is accommodated from the terminal area extraction unit 14. The same area terminal extraction unit 15 refers to the area information management DB 14a and acquires a cell of each carrier corresponding to the received area.

  In step S27, the same area terminal extraction unit 15 inquires of the home memory station 40 about the telephone numbers of all terminals accommodated in the acquired cell. That is, the home memory station 40 is inquired about the telephone numbers of all terminals accommodated in the same area as the area where the monitoring target terminal 21 is accommodated.

  In step S <b> 28, the same area terminal extraction unit 15 receives the telephone number of the terminal existing in the same area as the monitoring target terminal 21 from the home memory station 40. The same area terminal extraction unit 15 calls the terminal history management unit 16 and transmits the received telephone number.

  In step S <b> 29, the terminal history management unit 16 is activated by a call from the same area terminal extraction unit 15 and receives a telephone number of a terminal existing in the same area as the monitoring target terminal 21. The terminal history management unit 16 stores only the same telephone number as the telephone number stored in the terminal history DB 16a last time in the terminal history DB 16a.

  In step S30, the terminal history management unit 16 refers to the terminal history DB 16a, and extracts the narrowed telephone numbers, that is, the telephone numbers stored in the terminal history DB 16a most recently.

  In step S31, the monitoring result notifying unit 17 displays the telephone number extracted in step S30 on the monitor 10h or the monitors of the terminal devices 31a, 32a, and 33a. Moreover, the monitoring result notification part 17 displays the telephone number stored in terminal history DB16a on the monitor of terminal device 31a, 32a, 33a according to the request | requirement from terminal device 31a, 32a, 33a.

  In addition, although the said operation | movement shows only the 2nd method, it can also be operated in combination with the 1st method. The specific terminals 22 are narrowed down (second method) according to the narrowing conditions, and the specific terminals 22 are narrowed down (first method) each time a telephone number is transmitted from the terminal devices 31a, 32a, 33a. Can be.

FIG. 11 is a sequence diagram showing a flow of narrowing down terminals when the third method is designated.
In step S41, the tracking request receiving unit 11 receives the telephone number of the monitoring target terminal 21 and the terminal narrowing method from the terminal devices 31a, 32a, and 33a. This time, the narrowing-down method is the third method.

  In step S <b> 42, the tracking request reception unit 11 calls the location registration notification management unit 13. At this time, the tracking request reception unit 11 transmits the received telephone number to the location registration notification management unit 13. The location registration notification management unit 13 registers the received telephone number in the home memory station 40, and requests the home memory station 40 to notify that when the terminal having the registered telephone number is handed over.

In step S43, the home memory station 40 registers the telephone number transmitted from the location registration notification management unit 13.
In step S44, when the registered telephone number is handed over, the home memory station 40 calls the location registration notification management unit 13 and transmits the telephone number. The location registration notification management unit 13 calls the terminal area extraction unit 14 and transmits the telephone number received from the home memory station 40 to the terminal area extraction unit 14.

  In step S <b> 45, the terminal area extraction unit 14 inquires of the home memory station 40 about the cell accommodated in the monitoring target terminal 21 of the telephone number from the telephone number received from the location registration notification management unit 13.

In step S <b> 46, the home memory station 40 returns the cell of the telephone number for which the inquiry has been made to the mobile terminal screening server 10.
In step S <b> 47, the terminal area extraction unit 14 receives the cell in which the monitoring target terminal 21 is accommodated from the home memory station 40. The terminal area extraction unit 14 refers to the area information management DB 14a and acquires an area corresponding to the received cell. The terminal area extraction unit 14 calls the same area terminal extraction unit 15 and transmits the acquired area.

  In step S <b> 48, the same area terminal extraction unit 15 is activated by a call from the terminal area extraction unit 14 and receives an area in which the monitoring target terminal 21 is accommodated from the terminal area extraction unit 14. The same area terminal extraction unit 15 refers to the area information management DB 14a and acquires a cell of each carrier corresponding to the received area.

  In step S49, the same area terminal extraction unit 15 inquires of the home memory station 40 about the telephone numbers of all terminals accommodated in the acquired cell. That is, the home memory station 40 is inquired about the telephone numbers of all terminals accommodated in the same area as the area where the monitoring target terminal 21 is accommodated.

  In step S <b> 50, the same area terminal extraction unit 15 receives the telephone numbers of all terminals existing in the same area as the monitoring target terminal 21 from the home memory station 40. The same area terminal extraction unit 15 calls the terminal history management unit 16 and transmits the received telephone number.

  In step S <b> 51, the terminal history management unit 16 is activated by a call from the same area terminal extraction unit 15 and receives a telephone number of a terminal existing in the same area as the monitoring target terminal 21. The terminal history management unit 16 stores only the same telephone number as the telephone number stored in the terminal history DB 16a last time in the terminal history DB 16a.

  In step S52, the terminal history management unit 16 refers to the terminal history DB 16a, and extracts the narrowed telephone numbers, that is, the telephone numbers stored in the terminal history DB 16a most recently.

  In step S53, the monitoring result notifying unit 17 displays the telephone number extracted in step S52 on the monitor 10h or the monitors of the terminal devices 31a, 32a, and 33a. Moreover, the monitoring result notification part 17 displays the telephone number stored in terminal history DB16a on the monitor of terminal device 31a, 32a, 33a according to the request | requirement from terminal device 31a, 32a, 33a.

  In addition, although the said operation | movement shows only the 3rd method, it can also be operated in combination with the 1st method or the 2nd method. For example, each time a telephone number is transmitted from the terminal device 31a, 32a, 33a, the specific terminal 22 is narrowed down (first method), and when the monitoring target terminal 21 is handed over, the specific terminal 22 is narrowed down. Can be done. Further, it is possible to narrow down the specific terminals 22 according to the narrowing conditions (second method) and narrow down the specific terminals 22 even when the monitoring target terminal 21 is handed over.

  In this way, the telephone number of a terminal that is always present in the same area as the monitored terminal 21 is left in the terminal history DB 16a and held. Thereby, it is possible to narrow down the specific terminals 22 that are moving together with the monitoring target terminal 21. And the information of the owner of the specific terminal 22 can be obtained from the telephone number of the specific terminal 22, for example, a kidnapper can be estimated.

  Further, when the narrowing condition is input, the specific terminal 22 is narrowed according to the condition, so that it is not necessary to input the telephone number of the monitoring target terminal 21 every time, and the labor of the operator can be saved.

  Further, the telephone number of the terminal existing in the same area as the monitoring target terminal 21 is acquired when the monitoring target terminal 21 is handed over. Thereby, the accuracy of narrowing down the specific terminal 22 is increased by narrowing down the terminals that are moving together even when the monitoring target terminal 21 is handed over.

Furthermore, by displaying the information of the terminal history DB 16a on the display device on the monitor, it becomes easy to make a specific determination of the specific terminal 22 moving together with the monitoring target terminal 21.
A program describing the processing contents of the functions that the computer should have is provided. By executing the program on a computer, the above processing functions are realized on the computer. The program describing the processing contents can be recorded on a computer-readable recording medium. Examples of the computer-readable recording medium include a magnetic recording device, an optical disk, a magneto-optical recording medium, and a semiconductor memory. Examples of the magnetic recording device include a hard disk device (HDD) flexible disk (FD) and a magnetic tape. Examples of the optical disc include a DVD (Digital Versatile Disc), a DVD-RAM (Random Access Memory), a CD-ROM (Compact Disc Read Only Memory), and a CD-R (Recordable) / RW (ReWritable). Magneto-optical recording media include MO (Magneto-Optical disk).

  The computer that executes the program stores, for example, the program recorded on the portable recording medium or the program transferred from the server computer in its own storage device. Then, the computer reads the program from its own storage device and executes processing according to the program. The computer can also read the program directly from the portable recording medium and execute processing according to the program. In addition, each time the program is transferred from the server computer, the computer can sequentially execute processing according to the received program.

(Supplementary Note 1) In a mobile terminal narrowing-down device that narrows down a specific terminal moving together with a monitoring target terminal from a plurality of terminals,
Telephone number receiving means for receiving the telephone number of the monitored terminal from an operator;
From the home memory station that manages the location information indicating the region where the terminal is present in correspondence with the phone number of the terminal, the location information of the monitored terminal is obtained from the phone number of the monitored terminal. Position information acquisition means for acquiring;
Telephone number obtaining means for obtaining the telephone number of the terminal having the same location information as the monitoring target terminal from the home memory station;
Phone number holding means for holding the phone number of the terminal having the same location information as the terminal to be monitored;
A mobile terminal narrowing device characterized by comprising:

  (Additional remark 2) The said positional information acquisition means acquires the said positional information on the said monitoring object terminal according to the conditions input from the said operator, The mobile terminal narrowing-down apparatus of Additional remark 1 characterized by the above-mentioned.

  (Supplementary note 3) The movement according to supplementary note 1, wherein the home memory station transmits the position information of the monitoring target terminal to the position information acquisition unit when the monitoring target terminal moves to another area. Terminal refinement device.

  (Supplementary note 4) The mobile terminal screening device according to supplementary note 1, further comprising telephone number display means for displaying the telephone number held by the telephone number holding means on a display device.

(Additional remark 5) The area information management database in which the area which shows the area where the terminal exists without depending on a carrier and the position information were stored correspondingly,
Referring to the area information management database, area acquisition means for acquiring the area corresponding to the position information;
The mobile terminal narrowing-down device according to appendix 1, further comprising:

(Supplementary note 6) The mobile terminal narrowing-down apparatus according to supplementary note 2, wherein the condition includes a cycle, a number of times, or a date and time for acquiring the position information.
(Supplementary note 7) In a mobile terminal screening program for narrowing down a specific terminal that is moving together with a monitoring target terminal from a plurality of terminals,
Computer
Telephone number receiving means for receiving the telephone number of the monitored terminal from an operator;
From the home memory station that manages the location information indicating the region where the terminal is present in correspondence with the phone number of the terminal, the location information of the monitored terminal is obtained from the phone number of the monitored terminal. Position information acquisition means for acquiring,
Telephone number acquisition means for acquiring the telephone number of the terminal having the same location information as the monitoring target terminal from the home memory station;
Phone number holding means for holding the phone number of the terminal having the same location information as the terminal to be monitored;
Mobile terminal narrowing program, characterized in that it functions as

It is a principle figure explaining the principle of this invention. It is the figure which showed the system configuration example of embodiment of this invention. It is the block diagram which showed the hardware constitutions of the mobile terminal narrowing down server. It is a functional block diagram of a mobile terminal screening server. It is the figure which showed the data structural example of collection opportunity management DB. It is a figure explaining the relationship between a cell and an area, (a) is the figure which showed the cell, (b) is the figure which showed the cell and the area. It is the figure which showed the data structural example of area information management DB. It is the figure which showed the data structural example of terminal history DB. It is the sequence diagram which showed the flow of narrowing down a terminal when the 1st method is designated. It is the sequence diagram which showed the flow of narrowing down a terminal when the 2nd method is designated. It is the sequence diagram which showed the flow of narrowing down a terminal when the 3rd method is designated.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Mobile terminal narrowing-down apparatus 1a Telephone number receiving means 1b Location information acquisition means 1c Telephone number acquisition means 1d Telephone number holding means 2,40 Home memory station 3a, 21 Monitored terminal 3b, 22 Specific terminal 10 Mobile terminal narrowing server 11 Tracking request Receiving unit 12 Collection opportunity management unit 12a Collection opportunity management DB
13 Location Registration Notification Management Unit 14 Terminal Area Extraction Unit 14a Area Information Management DB
15 same area terminal extraction unit 16 terminal history management unit 16a terminal history DB
17 Monitoring result notification section

Claims (5)

In a mobile terminal screening device that narrows down a specific terminal that is moving together with a monitored terminal from a plurality of terminals,
Telephone number receiving means for receiving the telephone number of the monitored terminal from an operator;
From the home memory station that manages the location information indicating the area where the terminal is located in correspondence with the telephone number of the terminal, the location information of the monitored terminal is obtained from the telephone number of the monitored terminal. Position information acquisition means for acquiring;
Telephone number obtaining means for obtaining the telephone number of the terminal having the same location information as the monitoring target terminal from the home memory station;
Phone number holding means for holding the phone number of the terminal having the same location information as the terminal to be monitored;
A mobile terminal narrowing device characterized by comprising:   The mobile terminal narrowing-down apparatus according to claim 1, wherein the position information acquisition unit acquires the position information of the monitoring target terminal according to a condition input from the operator.   2. The mobile terminal narrowing-down apparatus according to claim 1, wherein the home memory station transmits the position information of the monitoring target terminal to the position information acquisition unit when the monitoring target terminal moves to another area. .   2. The mobile terminal narrowing-down apparatus according to claim 1, further comprising telephone number display means for displaying the telephone number held by the telephone number holding means on a display device. In a mobile terminal narrowing program that narrows down specific terminals that are moving together with monitored terminals from multiple terminals,
Computer
Telephone number receiving means for receiving the telephone number of the monitored terminal from an operator;
From the home memory station that manages the location information indicating the area where the terminal is located in correspondence with the telephone number of the terminal, the location information of the monitored terminal is obtained from the telephone number of the monitored terminal. Position information acquisition means for acquiring,
Telephone number acquisition means for acquiring the telephone number of the terminal having the same location information as the monitoring target terminal from the home memory station;
Telephone number holding means for holding the telephone number of the terminal having the same location information as the terminal to be monitored;
Mobile terminal narrowing program, characterized in that it functions as a mobile terminal.

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