JP3403145B2 - Information inquiry system - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an information inquiry system, and more particularly to an information inquiry system for efficiently searching data.

[0002]

119 from mobile phones (cell phones, etc.)
Conventionally, a system for receiving information such as the address of a mobile phone that issued the 119th notification has been
Received for pre-specified mobile phones 11
The 9th call and telephone number were concentrated in one representative reception. Then, in the representative reception, the jurisdiction of the location of the mobile phone that issued the 119th call was discriminated, and the voice signal forming the content of the call was transferred to the reception assigned to the discriminated jurisdiction.

[0003]

However, in the configuration according to the above-mentioned conventional technique, the reception of the 119th call and the determination of the jurisdiction are performed in one place, and it is complicated. As a result, in the above-mentioned technique, it takes a long time to transfer the 119th message. In addition, there is a risk that a voice signal may leak in the process of transferring the content of the notification.

The present invention has been made in view of the above circumstances, and an object of the present invention is to provide an information inquiry system in which information can be identified quickly and efficiently and information can be transferred safely.

[0005]

In order to achieve the above object, an information inquiry system according to a first aspect of the present invention is
A plurality of information centers each storing a plurality of data associated with a search key, and the information center to be accessed by the self is determined based on the search key supplied to the self, and the determined information center A relay center that retrieves and acquires data associated with the search key supplied to itself among the respective data stored by, a plurality of communication equipment that supplies the search key to the relay center, A jurisdiction database storage unit that stores a jurisdiction database that associates data with any of the communication facilities, wherein the data indicates a position of the mobile body, and
Serial search key is for identifying the moving body, the
Before each of the communication equipment indicates a position belonging to a predetermined area
Serial and associated with the data, the relay center, before
Location indicated by the data obtained from the information center and predetermined position
From the information center, data indicating the positional relationship
Also treated as data that has a predetermined relationship with the acquired data
A than, the communication facility associated with the data in the acquired data and the data in a predetermined relationship from the information center, identified by searching the jurisdiction database were identified which said communication facility The jurisdiction information indicating whether or not it is acquired from the information center in each of the areas and the function of supplying the communication equipment to which the search key is supplied.
Of the area that has a predetermined positional relationship with the position indicated by the data
Allocate a ranking indicating the size relationship of the area occupied by each of the above areas
And provide the ranking information indicating the ranking to the search key.
And a function of supplying the communication equipment to the communication equipment .

According to such an information inquiry system, the relay center determines whether or not the retrieved data is to be supplied to the communication equipment that has sent the instruction, and notifies the determination result. Also, if the data is to be supplied to the communication facility that sent the instruction, the data is supplied. Therefore, information can be quickly selected and specified.

[0007] The position having a predetermined positional relationship between the position and the position of the moving body that supplied the identification information, whether associated with which communication equipment is determined by the relay center.

Also , for example, when the position indicated by the data includes an error, the data is finally transferred as a result of assigning the order reflecting the possibility of the communication equipment associated with the position. Efficient determination of target communication equipment.

The information inquiry system according to the second aspect of the present invention stores a plurality of data, each of which is associated with a search key, and stores the data based on the search key supplied to itself. Of the respective data, a plurality of information centers that retrieves and outputs the ones associated with the search key, and a jurisdiction database storage that stores a jurisdiction database that associates the data with any of a plurality of external communication facilities. By acquiring the data output by the means and the information center and searching the jurisdiction database,
The acquired communication data and the communication equipment associated with the data having a predetermined relationship with the data are specified, and the data and jurisdiction information indicating which communication equipment is specified are supplied to the specified communication equipment. And a relay center, the data indicating the position of the mobile unit,
The search key is used to identify the mobile unit and
Before each of the communication equipment indicates a position belonging to a predetermined area
The relay center is associated with
Location indicated by the data obtained from the information center and predetermined position
From the information center, data indicating the positional relationship
Also treated as data that has a predetermined relationship with the acquired data
In each of the areas, the information center
Of the area that has a predetermined positional relationship with the position indicated by the obtained data
Identify the area that has the largest area of
Among the communication equipment, the data indicating the position belonging to the specified area
Data only to the communication equipment associated with the data
And supplying the jurisdiction information .

According to such an information inquiry system, the relay center specifies to which communication equipment the retrieved data should be supplied, and supplies the data to the identified communication equipment. Therefore, information can be quickly selected and specified.

[0011] The position having a predetermined positional relationship between the position and the position of the moving body that supplied the identification information, whether associated with which communication equipment is determined by the relay center.

Further, for example if the data indicates position is intended to include errors also identified potentially communication equipment associated with that location is the highest communication facility, data on the communication equipment is supplied.

Further , each of the information inquiry systems has a
Stores multiple data associated with the search key and
Each of the above stored by itself based on the supplied search key
Search the data that is associated with the relevant search key.
Export and output multiple information centers and the data
Jurisdiction data associated with one of the multiple communication facilities of the department
A competent database storage means for storing base, the information
Acquire the data output by the information center, and
Data acquired by searching
Corresponds to data that has a predetermined relationship with the data
The communication equipment is specified, and the data and which communication equipment
The jurisdiction information that indicates whether the equipment is specified is added to the specified communication equipment.
And a relay center for supplying the data to the mobile unit.
The search key is the position of
For identifying each of the communication equipment,
Associated with the data indicating the position belonging to the area
And the relay center was acquired from the information center.
The data indicating the position that has a predetermined positional relationship with the position indicated by the data.
Data to a predetermined relationship with the data acquired from the information center.
Be those handled as data in the engagement, assigned to each of said zones, a ranking representative of the magnitude relation of the area occupied by each said zone of the region located a predetermined positional relationship data acquired from the information center indicates The order information indicating the order may be supplied to the communication equipment indicated by the jurisdiction information. As a result, for example, even when the position indicated by the data includes an error, the order of assigning the order that reflects the degree of possibility that the communication device is associated with the position is determined. Will be efficient.

Further, the information inquiry system according to the third aspect of the present invention stores a plurality of data, each of which is associated with a search key, and stores the data based on the search key supplied to itself. Of the respective data, a plurality of information centers that retrieves and outputs the data associated with the search key, and a plurality of external communication facilities that connect the data to the information centers via communication lines A jurisdiction database storage means for storing a jurisdiction database associated with any of the above, and the data obtained by acquiring the data output by the information center and searching the jurisdiction database, and the data having a predetermined relationship with the data. The communication equipment associated with the communication equipment is specified, and jurisdiction information indicating which communication equipment is specified is stored in the information section that outputs the data. A relay center that supplies the data output by itself and jurisdiction information supplied by the relay center to the communication facility connected to itself. Characterize.

According to such an information inquiry system, the relay center identifies to which communication equipment the retrieved data should be supplied, and information indicating the identified communication equipment is sent to the communication equipment. Supplied with. For this reason, information can be quickly selected and specified, and the exchange of the selected information between communication facilities becomes efficient.

The data may indicate, for example, the position of the moving body, and the search key may identify the moving body. In this case, each of the communication equipment is associated with the data indicating a position belonging to a predetermined area, and the relay center has a position having a predetermined positional relationship with the position indicated by the data acquired from the information center. If the data indicating the above is treated as data having a predetermined relationship with the data acquired from the information center, the position of the mobile body to which the identification information is supplied and the position having the predetermined positional relationship with this position are The relay center determines which communication facility is associated.

The relay center assigns, to each of the areas, a rank indicating the magnitude relation of the area occupied by each of the areas in a region having a predetermined positional relationship with the position indicated by the data obtained from the information center, and the rank is assigned. May be supplied to the information center that has output the data. As a result, for example, even when the position indicated by the data includes an error, the order of assigning the order that reflects the degree of possibility that the communication device is associated with the position is determined. Will be efficient.

The information inquiry system according to the fourth aspect of the present invention is a database storage means for storing a database that associates a plurality of data, each of which is associated with a search key, with any of a plurality of external communication facilities. And connected to at least one of the communication equipments via a communication line, and when a search key is supplied to itself, searches the database to correspond to the search key among the data. The attached data is retrieved, the retrieved data and the communication equipment associated with the data having a predetermined relationship with the data are identified, and the retrieved data and which communication equipment is identified. And a relay center that supplies the jurisdiction information indicating whether the data is transmitted to the communication facility connected to itself, and the data indicates the position of the mobile body.
And the search key identifies the mobile unit.
And each of the communication facilities belongs to a predetermined area.
Corresponding to the data indicating the position, the relay
The center is related to the position indicated by the retrieved data and a predetermined position.
The data indicating the position of the person in charge is specified as the retrieved data.
Are treated as data having the relationship of
In the area, in a predetermined positional relationship with the position indicated by the retrieved data
Shows the size relation of the area occupied by each of the areas in a certain area
Rank order and assign the rank information indicating the rank to yourself.
It supplies to the said communication equipment connected .

According to such an information inquiry system, the relay center identifies to which communication equipment the retrieved data should be supplied, and information indicating the identified communication equipment is sent to the communication equipment. Supplied with. For this reason, information can be quickly selected and specified, and the exchange of the selected information between communication facilities becomes efficient.

Further, a position having a predetermined positional relationship between the position and the position of the moving body that supplied the identification information, whether associated with which communication equipment is determined by the relay center.

In addition , for example, even when the position indicated by the data includes an error, as a result of assigning the order reflecting the degree of possibility that the communication device is associated with the position, the communication device to which the data should be supplied. Makes decisions more efficient.

[0022]

[0023]

[0024]

[0025]

[0026]

[0027]

[0028]

[0029]

[0030]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an information inquiry system according to an embodiment of the present invention will be described with reference to the drawings, taking a call origin information providing system for specifying a call origin as an example.

(First Embodiment) FIG. 1 is a diagram showing a configuration of a source information providing system according to a first embodiment of the present invention. As shown in the figure, this originating location information providing system includes an area representative command facility 1A and a command facility 1
B and 1C, relay center 2, and position information center 3A-
3C, a mobile telephone exchange 4, and a jurisdiction database 5.

Area representative command facility 1A and command facility 1A
1C and the relay center 2 are connected to each other via a communication line composed of a frame relay network or the like.
Further, the relay center 2 and the position information centers 3A to 3C are connected to each other via a communication line.

The area representative command facility 1A has a CPU (Cent
ral Processing Unit) and RAM (Random Access Mem)
ory) and storage devices including hard disk drive, CR
It has a display device such as a T (Cathode Ray Tube), an input device such as a push button switch and a keyboard, and a communication control device such as a DSU (Digital Service Unit) and a terminal adapter.

The area representative command facility 1A, via its own communication control device and a communication line such as an ISDN line,
It is connected to the mobile telephone exchange 4. In addition, the area representative command facility 1A receives the command facility 1B via its own communication control device and a communication line composed of a frame relay or the like.
And 1C.

The command facilities 1B and 1C have substantially the same configuration as the area representative command facility 1A, and each has a communication control device and a communication line composed of a frame relay network. Via area representative command facility 1
It is connected to A.

The area representative command facility 1A receives, from the mobile telephone switchboard 4, a 119 notification (to be described later) and an ID (identification information: IDentifier) of a mobile telephone (for example, a mobile telephone), and performs an operation to be described later. The command facilities 1B and 1C receive the transfer of the ID of the mobile phone from the area representative command facility 1A and perform the operations described later.

The area representative command facility 1A is a cell zone of the mobile telephone exchange 4 (that is, an area where a call can be made via the mobile telephone exchange 4 using a mobile telephone).
It is associated with a predetermined part of the area. The command facilities 1B and 1C are also associated with a predetermined partial area in the cell zone of the mobile telephone switchboard 4, respectively.

The relay center 2 includes a storage device including a CPU, a RAM, a hard disk device, and the like. The relay center 2 supplies the ID supplied from the area representative command facility 1A to the position information centers 3A to 3C according to the processing described later, and also supplies the position information and name information described later supplied from the position information centers 3A to 3C. , Area representative command facility 1
A, command equipment 1B and 1C.

The jurisdiction database 5 includes a storage device including a hard disk device and the like, and is connected to the relay center 2. The jurisdiction database 5 is the mobile telephone exchange 4.
Information indicating the latitude and longitude of virtual points (points) arranged in a grid in the cell zone of
Mapping jurisdiction information indicating which one of the area representative command facility 1A, command facility 1B, and 1C is associated is stored in association with each other. And
The mapping jurisdiction information is read out and supplied to the area representative command facility 1A and the command facilities 1B and 1C according to the processing described later.

The position information centers 3A to 3C are, for example,
They have substantially the same configuration as each other, and each has a C
The storage device includes a PU, a RAM, a hard disk device, and the like.

Each of the storage devices of the location information centers 3A to 3C has an ID of a mobile telephone in the cell zone of the mobile telephone exchange 4, the latitude and longitude of the location of the mobile telephone, and the use of the mobile telephone. The position information indicating the name of the contractor and the like are stored in association with each other. In addition,
The mobile phones for which the location information centers 3A to 3C store the ID and the location information are specified in advance for each mobile telephone.

The mobile telephone exchange 4 includes a transmitter, a receiver, and a D
Equipped with communication control devices such as SU and terminal adapter,
Further, it is provided with a storage device including a CPU, a RAM, a hard disk device, etc., and is connected to the area representative command facility 1A via a communication control device provided therein. The mobile telephone exchange 4 is also connected to another external mobile telephone exchange via a communication line.

The mobile telephone exchange 4 relays calls between mobile telephones within its own cell zone and between a mobile telephone within its own cell zone and another external telephone or the like. Then, when the mobile telephone within its own cell zone issues the 119th call, the mobile telephone switchboard 1
The 19th report and the ID of the mobile phone that has transmitted the 119th report are supplied to the area representative command facility 1A.

(First Embodiment: Operation) Next, referring to FIG. 2 and FIG. 3, the operation of the origination point information providing system of FIG. 1 for specifying the position of the mobile telephone which has issued the 119th call is reported. And explain. FIG. 2 is a diagram showing a process of mutual authentication. FIG. 3 is a diagram showing a position specifying process.

(Processing of Mutual Authentication) When this source information providing system starts to operate, first, the relay center 2 requests the position information centers 3A to 3C to transmit an authentication key for authenticating itself. (FIG. 2, step S00
1).

The position information centers 3A to 3C perform step S
In 001, a random number is generated in response to the request transmitted by the relay center 2, and it is determined that the generated random number is used as an authentication key.
It is stored (step S002). Then, the generated authentication key is supplied to the relay center 2 (step S00).
3). The relay center 2 stores the authentication key supplied from the position information centers 3A to 3C. That is, it is registered as an authentication key (step S004).

Next, in order to start the authentication, the relay center 2 supplies each of the authentication keys stored by itself to the position information center that has generated each authentication key (step S00).
5). The location information centers 3A to 3C acquire the authentication key supplied to each of them and confirm that the authentication key matches the authentication key generated and stored by themselves (step S006), and the authentication is successful. The relay center 2 is notified of this (step S007).

Next, the relay center 2 is connected to the position information center 3
A to 3C are requested to transmit the special key KA used for encryption and decryption in the position specifying process described later (step S008).

The position information centers 3A to 3C perform step S
In response to the request transmitted by the relay center 2 in 008, the special key KA is generated and stored (step S009). Then, the generated special key KA is supplied to the relay center 2 (step S010). The relay center 2 registers the special key KA supplied from the position information centers 3A to 3C (step S011).

On the other hand, the area representative command facility 1A requests the relay center 2 to transmit the special key KB used for encryption and decryption in the position specifying processing (step S012).

The relay center 2 generates and stores the special key KB in response to the request transmitted by the area representative command facility 1A in step S012 (step S013). Then, the generated special key KB is supplied to the area representative command facility 1A (step S014). Area representative command facility 1
A registers the special key KB supplied from the relay center 2 (step S015).

(Position Specification Processing) When a mobile phone in the cell zone sends the 119th call, the mobile telephone exchange 4 installed in this cell zone receives the 119th call and sends the 119th call. Identify mobile phones.
Then, the mobile telephone switchboard 4 supplies the received 119th report and the ID of the mobile telephone identified by itself to the area representative command facility 1A of the origination point information providing system via the communication line. Then, the originating location information providing system performs the position specifying processing shown in FIG.

The area representative command facility 1A which has received the 119th report and the ID supplied from the mobile telephone switchboard 4 encrypts the received ID using the special key KB stored in itself, and outputs the encrypted ID. , To the relay center 2. Then, the relay center 2 is instructed to inquire the current position of the mobile phone indicated by the encrypted ID (FIG. 3, step S101).

When the relay center 2 is instructed to inquire the current position of the mobile telephone, the relay center 2 decrypts the encrypted ID by using the special key KB stored therein. Then, based on the ID obtained by the decryption, the location information center that grasps the current location of the mobile phone to which the ID is assigned is specified (step S102).

Hereinafter, in order to facilitate understanding, step S
The position information center identified by the relay center 2 in 102 is assumed to be the position information center 3A. In this case, the relay center 2 has the ID obtained by the decryption in step S102.
Is encrypted using the special key KA generated by the location information center 3A (step S103). Then, the ID encrypted with this special key KA is set in step S102.
The location information center specified in (that is, location information center 3
A) requesting the specified information center to send the location information indicating the current location of the mobile phone indicated by the encrypted ID supplied and the name information indicating the name of the user contractor, etc. (Step S104).

When the position information center 3A is instructed by the relay center 2 to transmit the position information and name information, the position information center 3A decrypts the encrypted ID using the special key KA stored therein (step S105). Then, using the ID obtained by the decryption as a key, the database provided in the self is searched, and the position information and the name information associated with the ID used as the key are retrieved (step S106).

When the position information and name information are retrieved, the position information center 3A retrieves the retrieved position information and name information.
The data is encrypted using the special key KA stored by itself and transmitted to the relay center 2 (step S107). Relay center 2
Receives the encrypted position information and name information transmitted by the position information center 3A, and decrypts the received encrypted position information and name information using the special key KA generated by the position information center 3A. (Step S108).

Next, the relay center 2 specially stores the position information and the name information obtained by the decryption in its own special key K.
Encryption is performed using B (step S109). Then
The relay center 2 searches for the mapping jurisdiction information stored in the jurisdiction database 5 using the position information obtained by the decryption as a key (step S110).

Specifically, in step S110,
The relay center 2 specifies an area whose distance from the position indicated by the position information is within a predetermined range. Then, mapping jurisdiction information indicating the area to which each point in the specified area belongs is retrieved from the jurisdiction database 5. Next, with respect to the area indicated by the retrieved mapping jurisdiction information, the rank of the size of the area within the specified area is specified.

To determine the ranking, the relay center 2 specifically counts the number of points within the above-mentioned area among the points belonging to each area indicated by the retrieved mapping jurisdiction information for each area. Then, the rank of the size of the area is specified, assuming that the area having the larger counted result has the larger area in the above-mentioned region. By doing so, for example, even when the position information includes an error, the order of the areas is assigned in descending order of possibility that the actual position of the mobile phone that issued the 119th message belongs, and the highest area is assigned. Is identified as the area most likely to be the area to which the actual location of the mobile phone belongs. Therefore, it becomes possible to efficiently determine the commanding equipment to talk with the mobile telephone.

The relay center 2 then proceeds to step S11.
It is determined whether or not the mapping jurisdiction information retrieved at 0 indicates the area associated with the area representative command facility 1A (step S111).

When it is determined that there is, the relay center 2
Is the position information and name information encrypted by the special key KB, the information indicating the rank of the area indicated by each mapping jurisdiction information (that is, the rank specified in step S110), and the 119th notification. The information indicating that the mobile phone that has transmitted (1) is in the area associated with the area representative command facility 1A (in-jurisdiction information) is supplied to the area representative command facility 1A (step S112).

The area representative command facility 1A is the relay center 2
Receives the in-jurisdiction information, area ranking information, encrypted position information and name information supplied to itself by using the special key KB that the encrypted position information and name information received are stored by the user. Decrypt (step S113). Then, on the display screen of the display device included in itself, step S
The area where the mobile phone which displays the current position indicated by the position information decrypted in 113 and the name and the like of the user contractor, and which has issued the 119th notification is associated with the area representative command facility 1A The characters and images indicating that the area is located, the order indicated by the order information of the area, and the like are displayed (step S11).
4).

By the processing of step S114, the operator of the area representative command facility 1A is instructed to the area representative command facility 1A.
It is notified that the mobile phone within the area associated with the 911 has issued the 119th call, and the current location of the mobile phone and the name of the user contractor are also notified.

On the other hand, when it is determined in step S111 that the mapping jurisdiction information does not indicate the area associated with the area representative command facility 1A, the relay center 2 determines that the mobile unit that issued the 119th notification. Information indicating that the telephone is outside the area associated with the area representative command facility 1A (external jurisdiction information) and information indicating each area (candidate area) indicated by the mapping jurisdiction information found in step S110. The position information and name information encrypted by the special key KB, and the above-mentioned area ranking information are supplied to the area representative command facility 1A (step S115).

The area representative command facility 1A is a relay center 2
Receives the out-of-jurisdiction information, the order information of the area, the encrypted position information and the name information that he has supplied to himself, and uses the special key KB that himself stores the received encrypted position information and the name information. Decrypt (step S116). Then, on the display screen of its own display device, step S110
The image and characters representing each area (candidate area) indicated by the mapping jurisdiction information searched for in (1) are displayed, and the mobile phone that has issued the 119th notification is displayed in the area associated with the area representative command facility 1A. Characters and images indicating that the area is outside, the rank indicated by the rank information of the area, and the like are displayed (step S11).
7).

In the area representative command facility 1A, the operator operates his or her own input device to select one of the candidate areas.
It waits until one is specified (step S118). When the operator specifies one of the candidate areas, the area representative command facility 1A is supplied from the mobile telephone switchboard 4 to the command facility (for example, command facility 1B) associated with the identified area. ID is transferred (step S11)
9).

The command equipment to which the ID is transferred in step S119 is the mobile station which has issued the 119th notification through the communication line connecting itself and the area representative command equipment 1A, the area representative command equipment 1A and the mobile telephone exchange 4 in order. Connect to your mobile phone and talk to this mobile phone. After that, the originating location information providing system executes the above-described steps S101 to S117.
Substantially the same processing as the above processing is performed (step S12).
0). However, in step S120, the command facility whose ID has been transferred in step S119 performs the function of the area representative command facility 1A. In addition, in the process corresponding to step S111, the relay center 2 determines
In the mapping jurisdiction information found in step S1, step S1
It is determined whether or not there is an item indicating the area associated with the commanding facility to which the ID is transferred in 19. Further, the in-jurisdiction information indicates that the mobile phone that has transmitted the 119th call is in the area associated with the command facility 1 to which the ID has been transferred, and the non-jurisdiction information indicates the 119th call. It is assumed that the originating mobile telephone is outside the area associated with the command facility 1 to which the ID has been transferred.

The configuration of this source information providing system is not limited to the above-described one, and various modifications and applications are possible. For example, the number of command facilities does not have to be two and may be three or more. Further, the number of position information centers is also arbitrary. In addition, the command equipment that first receives the 119th call after the mobile phone transmits the 119th notification may be present other than the area representative command equipment 1A. Therefore, for example, the command equipments 1B and 1C are 119 You may receive a number report. In addition, command equipment 1B and 1C,
They may be connected to the mobile telephone exchange 4 via their own communication control devices and communication lines such as ISDN lines. In this case, the command facility whose ID has been transferred in step S119 is connected to the mobile telephone that has issued the 119th notification by sequentially passing through the communication line connecting itself and the mobile telephone exchange 4 and the mobile telephone exchange 4. , Make a call to the mobile phone associated with the ID. Therefore, in this case, the area representative command facility 1A and the command facilities 1B and 1C need not be connected to each other.

The terminal for issuing the 119th call need not be a mobile telephone, but may be telephones connected to each other via a wired line. Also, the area representative command facility 1A, command facilities 1B and 1C, a relay center 2,
A communication line connecting the position information centers 3A to 3C to each other is also arbitrary.

The origin information providing system may include a plurality of relay centers. In this case, for example, each relay center is associated with one of the command facilities, and the relay center that executes the process of step S115 does not supply the area representative command facility 1A with the non-jurisdiction information, but instead assigns it to the candidate region. ID of the mobile phone that issued the 119th call to the relay center associated with the associated command facility
May be forwarded. Then, the relay center that has received the transfer of this ID may handle this ID as being supplied from the command facility, and execute the process of step S120.

The conditions to be satisfied by the area specified by the relay center 2 in order to retrieve the mapping jurisdiction information in step S110 are not limited to the above. For example,
In step S110, the relay center 2 may specify an area in which the distance from the position indicated by the position information is within a predetermined range and the azimuth as viewed from the position indicated by the position information is within the predetermined range. . Further, the relay center 2 may specify a region in which the electric field strength is within a predetermined range when a radio wave is radiated from the position indicated by the position information, by an arbitrary method. Further, the relay center 2 specifies a region in which the electric field strength is within a predetermined range when a radio wave is radiated from the position indicated by the position information, and the azimuth as viewed from the position indicated by the position information is within the predetermined range. You may do it.

(Second Embodiment) FIG. 4 is a diagram showing the configuration of a source information providing system according to a second embodiment of the present invention. As shown in the figure, this originating location information providing system includes command equipments 1a to 1c and a relay center 2
, Carrier networks 3a-3c, and mobile telephone exchanges 4a-4
c and a jurisdiction database 5.

Each of the command facilities 1a to 1c has substantially the same configuration as the area representative command facility 1A and the command facilities 1B and 1C in the configuration of FIG. 1, and performs the operation described later.

The command facility 1a is connected to the mobile telephone exchange 4a via a communication control device provided in itself and a communication line such as an ISDN line. Similarly, the command facility 1b is
It is connected to the mobile telephone exchange 4b via its own communication control device and communication line, and the command facility 1c is connected to the mobile telephone exchange 4c via its own communication control device and communication line. Further, the command facilities 1a to 1c are connected to each other via their own communication control devices and communication lines composed of frame relays and the like. In the configuration of FIG. 4, the command facilities 1a to 1c are associated with the cell zones of the mobile telephone exchanges connected to each of them.

The relay center 2 has substantially the same structure as the relay center 2 in the structure of FIG. The relay center 2 is supplied with the above-mentioned position information and name information from the carrier networks 3a to 3c, and in accordance with the processing described later, provides the mobile telephone exchanges 4a to 4c with voice information, position information, name information and jurisdiction information described later. Supply.

The jurisdiction database 5 has substantially the same configuration as the jurisdiction database 5 in the configuration of FIG. 1, and the mapping jurisdiction information described above is substantially the same as the jurisdiction database 5 in the configuration of FIG. It is stored in the same manner. Then, the mapping jurisdiction information is read out and supplied to the relay center 2 according to the processing described later.

The carrier network 3a comprises a communication line 31a composed of a frame relay network and the like, and a position information center 32a connected to the communication line 31a. The carrier network 3b includes a communication line 31b having substantially the same configuration as the communication line 31a, and a position information center 32b connected to the communication line 31b. The carrier network 3c has a communication line 3 that has substantially the same configuration as the communication line 31a.
1c and the location information center 3 connected to the communication line 31c
2c and.

The communication lines 31a to 31c are connected to the relay center 2
It is connected to the. Upon receiving the 119th report, each of the communication lines 31a to 31c identifies the ID of the mobile phone that has transmitted the 119th report.

The position information centers 32a to 32c have, for example, substantially the same configuration as each other, and each is provided with a storage device including a CPU, a RAM, a hard disk device and the like. The storage device of the location information center 32a stores the IDs of mobile telephones within the three cell zones of the mobile telephone exchanges 4a to 4c, the location information indicating the latitude and longitude of the location of the mobile telephones, and the location information of the mobile telephones. Name information indicating the name and the like of the usage contractor is stored in association with each other. Each of the storage devices of the location information centers 32b and 32c also associates the IDs of mobile phones in the three cell zones of the mobile phone exchanges 4a to 4c with the location information and name information of these mobile phones. I remember. The position information centers 32a to 32
The mobile phones for which each c stores the ID, position information, and name information are specified in advance for each mobile phone.

The mobile telephone exchanges 4a to 4c relay calls between the command facility connected to each of them and the relay center 2. The mobile telephone exchanges 4a to 4c have substantially the same configuration as each other, and each is provided with a communication control device such as a transmitter, a receiver, a DSU, and a terminal adapter. The mobile telephone exchange 4a is connected to the command facility 1a via its own communication control device, and the mobile telephone exchange 4b is connected to the command facility 1b via its own communication control device. 4c is connected to the command facility 1c via its own communication control device.

(Second Embodiment: Operation) Next, the operation of the origin information providing system of FIG. 4 for transmitting the notification to the command facility by specifying the position of the mobile phone that has issued the 119th notification. , Will be described with reference to FIG. FIG. 5 is a diagram showing a position specifying process.

(Processing of Mutual Authentication) When this origin information providing system starts operating, first, the location information center 32
a-32c, the relay center 2 and the command facilities 1a-1c,
Mutual authentication processing according to the above-described first embodiment (see FIG. 2).
The processing is substantially the same as the processing shown in FIG.

However, in the mutual authentication processing, the position information centers 32a, 32b and 32c perform operations corresponding to the operations of the position information centers 3A, 3B and 3C in the configuration of FIG. 1a performs an operation corresponding to the operation of the area representative command facility 1A having the configuration of FIG. Further, the position information center 32a and the relay center 2 are
The authentication key and the special key KA are transmitted and received via the communication line 31a, and similarly, the position information centers 32b and 32c and the relay center 2 transmit and receive the authentication key and the special key KA via the communication lines 31b and 31c. To do. Further, the command facility 1a and the relay center 2 send and receive the special key KB via the mobile telephone exchange 4a, and similarly, the command facility 1b
And 1c and the relay center 2 transmit and receive the special key KB via the mobile telephone exchanges 4b and 4c.

(Position specifying process) Mobile telephone exchange 4a ...
11 mobile phones in any of the 4c cell zones
When the 9th report is transmitted, one of the communication lines 31a to 31c of the carrier networks 3a to 3c receives the 119th report and specifies the ID of the mobile phone that has transmitted the 119th report. Then, the communication line specifying the ID supplies the ID specified by itself to the position information center connected to itself,
The position information center is instructed to output the position information and the name information (FIG. 5, step S301). In the following,
To facilitate understanding, the communication line that has received the 119th notification is the communication line 31a.

When the position information center 32a is instructed to transmit the position information and name information from the communication line 31a which has received the 119th notification, the ID supplied from the communication line 31a.
Using the key as a key, a database provided in the self is searched, and the position information and name information associated with the ID used as the key are retrieved (step S302).

When the position information and name information are searched, the position information center 32a encrypts the searched position information and name information using the special key KA stored in itself.
The encrypted position information and name information are then sent to the communication line 3
It transmits to relay center 2 via 1a,
An instruction to output jurisdiction information is given (step S303).

The relay center 2 receives the encrypted position information and name information transmitted by the position information center 32a, and receives the encrypted position information and name information received by the position information center 32a. Decryption is performed using the key KA (step S304). Then, the decrypted position information and name information are encrypted using the special key KB stored by itself (step S305).

The relay center 2 then proceeds to step S304.
The mapping jurisdiction information stored in the jurisdiction database 5 is searched with the position information obtained by the decryption in step S6 as a key (step S306). In step S306, the relay center 2 specifically specifies an area in which the distance from the position indicated by the position information is within a predetermined range. Then, all mapping jurisdiction information indicating the cell zone to which each point in the specified area belongs is searched out.

The relay center 2 then proceeds to step S306.
For the cell zone indicated by the mapping jurisdiction information found in step S306, the rank of the size of the area within the area specified in step S306 is specified (step S307).

Specifically, the relay center 2 performs the step S
Of the points belonging to each cell zone indicated by the mapping jurisdiction information found in 306, the number of points within the area specified in step S306 is counted for each cell zone. Then, the larger the counted cell zone is, the step S3 is performed.
It is assumed that the area in the region specified in 06 is large, and the rank of the size of the area is specified. By doing so, for example, even when the location information includes an error, the cell zone ranks are assigned in descending order of possibility of being the cell zone to which the actual location of the mobile phone that issued the 119th report belongs, and the highest cell zone is assigned. Is identified as the cell zone most likely to be the cell zone to which the actual location of the mobile phone belongs. Therefore, it becomes possible to efficiently determine the commanding equipment to talk with the mobile telephone.

Next, the relay center 2 (1) adds the mapping jurisdiction information retrieved in step S306 to (2)
(1) Information (rank information) indicating the rank of the cell zone (that is, the rank specified in step S307) indicated by each mapping jurisdiction information, and (3) the position information and name encrypted by the special key KB in step S305. Information,
Is supplied to the mobile telephone exchange having the highest cell zone rank among the mobile telephone exchanges 4a to 4c (step S308).

In the following, for ease of understanding, the mapping jurisdiction information retrieved in step S306 is assumed to indicate the cell zones of the mobile telephone exchanges 4a and 4b. And the cell zone of the mobile telephone exchange 4a is first place,
It is assumed that the cell zone of the mobile telephone exchange 4b is second.
Therefore, in step S308, the relay center 2 supplies the above information (1) to (3) to the mobile telephone exchange 4a.

The command facility 1a receives the information (1) to (3) supplied from the relay center 2 to the mobile telephone exchange 4a via the mobile telephone exchange 4a. Then, the received information (3) (that is, the encrypted position information and name information) is decrypted using the special key KB stored by itself (step S309).

Then, on the display screen of its own display device, an image or a character representing the current position indicated by the position information decrypted in step S309 and the name of the user contractor indicated by the name information decrypted in step S309 is displayed. It is displayed (step S310). Further, in step S310, the command facility 1a
Displays a character, an image, or the like indicating that the mobile phone that issued the 119th call is in the cell zone of the mobile phone exchange 4a, which is ranked first in the information (2). Further, in step S310, the command facility 1a provides information indicating the cell zone of the mobile telephone exchange 4b (for example, the name of the cell zone), which is ranked second in the information of (2),
Display as showing other candidates for jurisdiction.

By the process of step S310, the operator of the commanding equipment 1a is informed that the mobile telephone within the cell zone of the mobile telephone exchange 4a has issued the 119th call, and that mobile telephone The current location and the name of the contractor are notified. Further, the cell zone (candidate cell zone) whose rank indicated by the information of (2) is second or lower is also notified.

Then, the command facility 1a waits for the operator to operate one's own input device to specify one of the cell zones indicated by the information (1) (step S31).
1). When the operator specifies one of these cell zones, the command facility 1a indicates that the specified cell zone is
Whether it is the cell zone of the mobile telephone exchange connected to itself (that is, whether it is the cell zone of the mobile telephone exchange 4a)
It is determined whether or not (step S312).

In step S312, the mobile telephone exchange 4a
If it is determined that the cell zone of
Connects to the mobile telephone that has issued the 119th call through the mobile telephone exchange 4a, the relay center 2 and the communication line 31a of the carrier network 3a, and talks with this mobile telephone (step S313).

In step S312, the mobile telephone exchange 4a
When it is determined that a cell zone other than the cell zone is specified, the command facility 1a transfers the information items (1) to (3) supplied from the mobile telephone exchange 4a to the command facility associated with the specified cell zone. Yes (step S31
4).

To facilitate understanding, step S314
Assuming that the command equipment to which the ID has been transferred in is the command equipment 1b, the command equipment 1b sends the 119th notification through the mobile telephone exchange 4b, the relay center 2 and the communication line 31b of the carrier network 3b sequentially. Connect to your mobile phone and talk to this mobile phone.

The configuration of this source information providing system is not limited to that described above, and various modifications and applications are possible. For example, in step S306, the condition to be satisfied by the area specified by the relay center 2 for searching the mapping jurisdiction information is arbitrary. For example, as in the case where the relay center 2 of FIG. 1 performs the processing in step S110 described above. Alternatively, a region whose distance from the position indicated by the position information is within a predetermined range and whose azimuth as viewed from the position indicated by the position information is within a predetermined range may be specified. In addition, a region in which the electric field strength is within a predetermined range when a radio wave is radiated from the position indicated by the position information may be specified by an arbitrary method. Also, when the electric wave is radiated from the position indicated by the position information, the electric field strength is within a predetermined range,
Moreover, you may make it specify the area | region where the direction seen from the position which position information shows is within a predetermined range.

The method of specifying the rank of the cell zone in step S307 is not limited to that described above. Therefore, for example, the relay center 2 or the jurisdiction database 5
It is also possible to store map information representing a map of each cell zone in advance and allow the relay center 2 to determine the area of a portion of each cell zone that belongs to the region specified in step S306 based on this map information. In this case, the relay center 2 has a larger cell area having a larger area as a result of the determination,
As the area in the region specified in step S306 is large, the rank of the area size may be specified.

(Third Embodiment) FIG. 6 is a diagram showing the configuration of a source information providing system according to a third embodiment of the present invention. As shown in the figure, in the configuration of the origin information providing system, the communication line 31a is connected to the mobile telephone exchange 4a and the communication line 31b is connected to the mobile telephone exchange 4b.
4 and the communication line 31c is connected to the mobile telephone exchange 4c, which is substantially the same as the configuration of FIG.

The relay center 2 in the configuration of FIG. 6 receives the above-mentioned position information and name information from the position information centers 32a to 32c, and supplies jurisdiction information to the position information centers 32a to 32c according to the processing described later. Further, the mobile telephone exchanges 4a to 4c relay a call between the command facility connected to each of them and the carrier network (communication line) connected to each of them.

(Third Embodiment: Operation) Next, the operation of the origination information providing system of FIG. 6 to specify the position of the mobile telephone which has issued the 119th message and transmit the message to the command facility. , FIG. 7 will be described. FIG. 7 is a diagram showing a position specifying process.

(Mutual Authentication Processing) When the origin information providing system of FIG. 6 starts operating, first, the location information center 3
2a to 32c and the relay center 2 perform substantially the same processing as the processing of steps S001 to S011 of the processing of mutual authentication shown in FIG. However, in the process of mutual authentication,
The position information centers 32a, 32b, and 32c perform operations corresponding to the operations of the position information centers 3A, 3B, and 3C in the configuration of FIG.

(Position specifying processing) Mobile telephone exchanges 4a-
11 mobile phones in any of the 4c cell zones
When the 9th report is transmitted, when any of the communication lines 31a to 31c of the carrier networks 3a to 3c receives the 119th report, the received communication line performs substantially the same process as the process of step S301 described above. (FIG. 7, Step S50
1). However, the communication line is not necessarily the relay center 2
You do not need to provide your name information to. In the following, for ease of understanding, the communication line that has received the 119th notification is the communication line 31a.

The location information center 32a proceeds to step S50.
When the position information is instructed to be transmitted from the communication line 31a in step 1, the process substantially the same as the above-described steps S302 and S303 is performed (step S502). No need to supply information. Next, the relay center 2 performs step S
Substantially the same processing as the processing of 304 to 307 is performed (step S503). However, the process corresponding to step S305 is not performed.

Next, the relay center 2 shows substantially the same information as the above-mentioned information (1) and (2) (that is, each mapping jurisdiction information retrieved from the jurisdiction database 5 and the rank of the cell zone). Information) to the position information center that has been subjected to the process of step S502, that is, the position information center 32a.
(Step S504).

The position information center 32a uses the information of (1) and (2) supplied by the relay center 2 and step S502.
The position information and the name information retrieved in step 3 are supplied to the communication line 31a, and the communication line 31a transmits these four pieces of information supplied by the position information center 32a to the mobile telephone exchange 4a (step S505).

The command facility 1a receives the information transmitted by the communication line 31a in step S505 via the mobile telephone exchange 4a. Then, the command facility 1a (and the command facility 1
In step b), the substantially same processing as the processing of steps S310 to S313 is performed (step S506). However, the command facilities 1a and 1b are connected to the communication line 31 in step S505.
The position information and name information included in the information transmitted by a.
It is assumed that the position information and the name information decrypted in step S309 are treated the same. In addition, in the process corresponding to step S313, the command facility 1a connects to the mobile phone that has issued the 119th call through the mobile phone exchange 4a and the communication line 31a in order and talks with this mobile phone.

Then, in the processing of step S506,
In the process corresponding to step S312, the mobile telephone exchange 4a
If it is determined that a cell zone other than the cell zone is specified, the command facility 1a transfers the four pieces of information supplied in step S505 to the command facility associated with the specified cell zone. The command equipment that received the transfer connects to the mobile telephone that has issued the 119th call through the mobile telephone exchange connected to itself and the communication line connected to this mobile telephone, and talks with this mobile telephone. To do.

(Fourth Embodiment) FIG. 8 is a diagram showing the configuration of a source information providing system according to a fourth embodiment of the present invention. As shown in the figure, the origin information providing system does not include the relay center 2, and instead of the jurisdiction database 5, the jurisdiction database 5
The configuration is substantially the same as that of FIG. 6 except that the components a to 5c are provided.

The jurisdiction databases 5a to 5c have substantially the same structure as the jurisdiction database 5 in the structure shown in FIG.
It is stored in substantially the same manner as the jurisdiction database 5 in the above configuration. The jurisdiction database 5a is connected to the position information center 32a, the jurisdiction database 5b is connected to the position information center 32b, and the jurisdiction database 5c is connected to the position information center 32c. Then, the jurisdiction databases 5a to 5c read out the mapping jurisdiction information according to the processing described later and supply it to the position information center connected to each one.

(Fourth Embodiment: Operation) Next, the operation of the origin information providing system of FIG. 8 for transmitting the notification to the command facility by specifying the position of the mobile phone that has issued the 119th notification. , FIG. 9 will be described. FIG. 9 is a diagram showing a position specifying process.

(Position specifying processing) Mobile telephone exchanges 4a-
11 mobile phones in any of the 4c cell zones
When the 9th report is transmitted, any of the communication lines 31a to 31c of the carrier networks 3a to 3c receives the 119th report. The communication line that has received the 119th notification performs substantially the same processing as the above-described processing of step S501 (FIG. 9, FIG.
Step S701). In the following, for ease of understanding, the communication line that has received the 119th notification is the communication line 31
a.

The position information center 32a proceeds to step S70.
When the transmission of position information is instructed from the communication line 31a in step 1, the same processing as the above-described step S502 is performed, and further, the step S performed by the relay center 2 is performed.
Substantially the same processing as the processing of 503 is performed (step S
702). However, the location information center 32a handles the jurisdiction database 5a as an alternative to the jurisdiction database 5. Further, the position information and the name information are neither encrypted nor decrypted.

Next, the position information center 32a determines the information substantially the same as the information (1) and (2) described above (that is, each mapping jurisdiction information retrieved from the jurisdiction database 5a and the order of the cell zone). Information shown) and the position information and name information retrieved in step S702.
1a (step S703). Communication line 31a
Transmits these four pieces of information supplied by the location information center 32a to the mobile telephone exchange 4a.

The command facility 1a uses the information supplied by the location information center 32a in step S703 as the mobile telephone exchange 4
When it is received via a, the process substantially the same as the process of step S506 is performed (step S704). Further, in the process of step S704, the command facility that has received the four pieces of information supplied by the position information center 32a in step S703 is the mobile telephone exchange connected to itself and the communication line connected to this mobile telephone. Through the sequential connection, it connects to the mobile phone that issued the 119th call and talks with this mobile phone.

Although the embodiments of the present invention have been described above, the information inquiry system of the present invention can be realized by using an ordinary computer system instead of a dedicated system. For example, a medium (magnetic tape, CD-ROM) in which a program for executing the above-described operation is stored in a plurality of server computers, which are connected to each other via an arbitrary data communication line and one of which is connected to a telephone exchange.
By installing the program from
An information inquiry system that executes the above processing can be configured.

Further, the medium for supplying the program to the computer may be a communication medium (a medium that temporarily and fluidly holds the program, such as a communication line, a communication network, a communication system). For example, the program may be posted on a bulletin board (BBS) of a communication network and distributed via the network. Further, the program may be supplied by distributing a modulated wave obtained by modulating a carrier wave by the program.
Then, the above process can be executed by activating this program and executing it under the control of the OS in the same manner as other application programs.

When the OS shares part of the processing,
Alternatively, when the OS constitutes a part of one component of the present invention, the program excluding the part may be stored in the recording medium. Also in this case, in the present invention, it is assumed that the recording medium stores a program for executing each function or step executed by the computer.

[0123]

As described above, according to the present invention, it is possible to realize an information inquiry system in which information can be specified quickly and efficiently and information can be transferred safely.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of a source information providing system according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing a process of mutual authentication of the source information providing system of FIG.

FIG. 3 is a flowchart showing a position specifying process of the source information providing system of FIG.

FIG. 4 is a block diagram showing a configuration of a source information providing system according to a second embodiment of the present invention.

FIG. 5 is a flow chart showing a position specifying process of the source information providing system of FIG.

FIG. 6 is a block diagram showing a configuration of a source information providing system according to a third embodiment of the present invention.

7 is a flowchart showing a position specifying process of the source information providing system of FIG.

FIG. 8 is a block diagram showing a configuration of a source information providing system according to a fourth embodiment of the present invention.

9 is a flowchart showing a position specifying process of the origination point information providing system of FIG.

[Explanation of symbols]

1A area representative command equipment 1B, 1C, 1a-1c Command equipment 2 relay center 3A-3C, 32a-32c Position information center 31a to 31c communication line 4, 4a-4c Mobile telephone exchanges 5, 5a-5c Jurisdiction database

Claims (7)

(57) [Claims] 1. A plurality of information centers each storing a plurality of data associated with a search key, and the information center to be accessed by the self is determined based on the search key supplied to the self. Of the respective data stored in the determined information center, a relay center that retrieves and acquires data associated with the search key supplied to itself, and a plurality of relay centers that supply the search key to the relay center. Communication equipment, and a jurisdiction database storage means for storing a jurisdiction database that associates the data with any one of the communication equipment,
And the data indicates the position of the moving body,
The search key is for identifying the mobile body, and each of the communication equipment indicates a position belonging to a predetermined area.
Corresponding to the data, the relay center has a predetermined position and a position indicated by the data acquired from the information center.
Data indicating the position having a positional relationship is sent from the information center.
Treated as data that has a predetermined relationship with the data obtained from
The communication facility associated with the data acquired from the information center and the data having a predetermined relationship with the data is identified by searching the jurisdiction database, and which communication facility is identified. Function to supply jurisdiction information indicating whether or not to the communication equipment that supplied the search key
And the data acquired from the information center is displayed in each of the areas.
Of each of the areas that have a predetermined positional relationship with the
Assign a rank that represents the size relationship of the occupied area, and
To the communication equipment that supplied the search key.
An information inquiry system characterized by having a function of supplying . 2. A plurality of data items, each of which is associated with a search key, is stored, and based on the search key supplied to itself,
Stores a plurality of information centers that retrieves and outputs the data associated with the search key among the respective data stored by itself, and a jurisdiction database that associates the data with any of a plurality of external communication facilities And a communication facility associated with the acquired data and the data having a predetermined relationship with the data by acquiring the data output by the information center and searching the jurisdiction database. And a jurisdiction center that supplies the data and jurisdiction information indicating which communication equipment is specified, to the specified communication equipment, and the data indicates the position of the mobile body. Inspection
The search key is for identifying the mobile body, and each of the communication equipment indicates a position belonging to a predetermined area.
The relay center is associated with the data, and the relay center is the data acquired from the information center.
Data indicating a position that has a predetermined positional relationship with the position indicated by
In a predetermined relationship with the data acquired from the information center
It is treated as certain data, and
The location and location indicated by the data obtained from the information center
The largest area occupies the area with a fixed positional relationship
Specified area, and the specified area of each of the communication equipment
The communication associated with the data indicating the position belonging to
Supply the data and jurisdiction information only to the communication equipment.
Information inquiry system that is characterized in that. 3. A plurality of data items each associated with a search key.
Data based on the search key supplied to it,
Of the above-mentioned data stored by oneself, the search key
Multiple information centers that search for and output responded information
And the above data can be sent to any of multiple external communication facilities.
A jurisdiction database record that stores the jurisdiction database to be attached
The storage means and the data output by the information center are acquired, and the jurisdiction data
By searching the database, the acquired data and
Is correlated to the data in the micro the data in a predetermined relationship
Identify the communication equipment that is
The jurisdiction information that indicates whether the communication equipment is specified
And a relay center for supplying the equipment, wherein the data is
The search key indicates the position of the moving body.
A mobile unit is identified, and each of the communication equipment indicates a position belonging to a predetermined area.
The relay center is associated with the data, and the relay center is the data acquired from the information center.
Data indicating a position that has a predetermined positional relationship with the position indicated by
In a predetermined relationship with the data acquired from the information center
It is treated as certain data, and each area is assigned a rank representing the magnitude relationship of the area occupied by each area among the areas having a predetermined positional relationship with the position indicated by the data acquired from the information center, An information inquiry system, characterized in that order information representing a rank is supplied to communication equipment indicated by the jurisdiction information. 4. A plurality of data items, each of which is associated with a search key, is stored, and based on the search key supplied to itself,
Of the respective data stored by itself, a plurality of information centers that retrieve and output the data associated with the search key, and the data are stored in an external storage device connected to each of the information centers via a communication line. A jurisdiction database storage unit that stores a jurisdiction database associated with any one of a plurality of communication facilities, and acquires the data output by the information center and retrieves the jurisdiction database to obtain the acquired data, and the data and the predetermined data. A relay center that specifies the communication equipment associated with the related data, and supplies jurisdiction information indicating which communication equipment is specified to the information center that has output the data, The information center supplies the data output by itself and the jurisdiction information supplied by the relay center to the communication facility connected to itself. Information inquiry system comprising feed means, it is characterized. 5. The data indicates a position of a mobile body, the search key identifies the mobile body, and each of the communication equipment indicates a position belonging to a predetermined area. The relay center is associated with the data, and the relay center has a predetermined relationship with the data acquired from the information center, the data indicating the position having a predetermined positional relationship with the position indicated by the data acquired from the information center. The information inquiry system according to claim 4 , wherein the information inquiry system is treated as data. 6. The relay center assigns, to each of the areas, a rank indicating the size relationship of the areas occupied by the areas in a region having a predetermined positional relationship with the position indicated by the data acquired from the information center, The information inquiry system according to claim 4 or 5 , wherein rank information indicating the rank is supplied to the information center that has output the data. 7. A database storage means for storing a database for associating a plurality of data, each of which is associated with a search key, with one of a plurality of external communication facilities, and at least one of the communication facilities via a communication line. When it is connected to one and the search key is supplied to itself,
The communication facility that searches the database and finds one of the data items that is associated with the search key and that is associated with the retrieved data item and the data item that has a predetermined relationship with the data item. And a relay center that supplies the retrieved data and jurisdiction information indicating which communication equipment is specified to the communication equipment connected to itself, the data being a mobile object. It indicates the position of
The search key is for identifying the mobile body, and each of the communication equipment indicates a position belonging to a predetermined area.
Corresponding to the data, the relay center is located at the position indicated by the retrieved data.
The data indicating the position in the
Be those handled as data in the data a predetermined relationship,
In each of the above areas, the position and the predetermined position indicated by the retrieved data are shown.
The size of the area occupied by each of the above-mentioned areas
Ranking information that represents the ranking by assigning a ranking that represents the relationship
Is supplied to the communication equipment connected to itself .