JP2004088440A - System, method, program for managing position information, system, method and program for distributing advertisement and recording medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To manage the place of a radio LAN mobile terminal in real time. <P>SOLUTION: Radio LAN access points AP1 to APn notify a position management server 3 of associate establishment of mobile terminals M1 to My (notifies of installation location of access point and MAC addresses of mobile terminals). The position management server 3 retrieves the user ID of a corresponding MAC address from a database (customer DB) 5 and records the present position (place of access point) for each user. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a position information management system, a position information management method, a position information management program, an advertisement distribution system, an advertisement distribution method, an advertisement distribution program, and a recording medium.
[0002]
[Prior art]
In recent years, high-speed public wireless LAN services conforming to IEEE802.11b and IEEE802.11a have been provided in airports, train stations, hamburger shops, and the like. When the public wireless LAN service is used, the user can access the Internet while moving through the public wireless LAN service area. In such a situation, a request has begun to be made to run advertisements for nearby stores in accordance with the location of the wireless LAN mobile terminal.
[0003]
[Problems to be solved by the invention]
However, wireless LANs have been used mainly in offices and so on, so there was no need to manage the location of mobile terminals in real time, and it was technically difficult to manage them. In the current wireless LAN, the location of the mobile terminal cannot be managed in real time.
[0004]
As a conventional technique, a method of logging in to an access point from a Web browser and referring to a MAC address of a mobile terminal associated with the access point, a method of logging in to the access point by telnet, and connecting to the access point and Or a method of referring to the MAC address of a mobile terminal associated with the access point by SNMP from software called an access point manager.
[0005]
However, since only one access point can access at a time, information on a plurality of access points cannot be obtained in real time. What can be referred to is the MAC address of the mobile terminal associated with the access point, and the user ID is unknown. That is, the conventional system does not have a function of managing the MAC address of the mobile terminal and the user ID, so that the user ID cannot be obtained from the MAC address. Further, since the conventional system does not have the position management function, the user ID and the position information cannot be managed in real time. Further, in order to automatically record the location information of the mobile terminal collected from the access point and to acquire the user ID from the MAC address, advanced programming is required, which is technically difficult.
[0006]
The present invention has been made in view of the above circumstances, and has a position information management system, a position information management method, a position information management program, an advertisement distribution system, and an advertisement distribution method capable of managing the location of a wireless LAN mobile terminal in real time. , An advertisement distribution program and a recording medium.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, according to the first aspect of the present invention, address information for identifying a mobile terminal connected to a network by wireless communication and position information indicating its own installation location are notified. An access point, for each user identification information for identifying a user of a mobile terminal connected via a network, customer information storage means for storing address information for identifying the mobile terminal, and the user identification information Location information storage means for storing location information for each, user identification information corresponding to the address information notified from the access point with reference to the customer information storage means, and associated with the user identification information A location management unit that updates the location information stored in the location information storage unit with the location information notified from the access point as needed. Characterized in that it Bei.
[0008]
Further, in the invention according to claim 2, in the position information management system according to claim 1, the access point includes address information for identifying the mobile terminal when a connection between the mobile terminal and a network is established. And position information indicating the installation location of the own device are notified to the position management means.
[0009]
According to a third aspect of the present invention, in the location information management system according to the first aspect, the location management means inquires the access point of a mobile terminal being connected to a network at predetermined time intervals. The access point notifies the location management unit of address information for identifying the mobile terminal and location information indicating its own installation location in response to an inquiry from the location management unit. And
[0010]
Further, in order to solve the above-mentioned problem, in the invention according to claim 4, address information for identifying the mobile terminal is associated with each user identification information for identifying a user of the mobile terminal. It is stored in a database, and indicates address information for identifying a mobile terminal connected to the network from an access point for connecting a mobile terminal existing in a predetermined area to the network by wireless communication, and indicates its own installation location. Notify the location information, refer to the database based on the address information notified from the access point, identify the user identification information for identifying the user of the mobile terminal, and associated with the user identification information The position information notified from the access point is stored as needed.
[0011]
According to a fifth aspect of the present invention, in the position information management method according to the fourth aspect, the access point is configured to provide address information for identifying the mobile terminal when a connection between the mobile terminal and a network is established. And location information indicating the installation location of the user.
[0012]
According to a sixth aspect of the present invention, in the position information management method of the fourth aspect, the access point identifies a mobile terminal connected to the network in response to an inquiry generated at a predetermined time interval. , And location information indicating its own installation location.
[0013]
In order to solve the above-mentioned problem, according to the invention of claim 7, a mobile terminal connected to a network from an access point for connecting a mobile terminal existing in a predetermined area to the network by wireless communication. Notifying the address information for identifying the user and the location information indicating its own installation location, and user identification information for identifying the user of the mobile terminal based on the address information notified from the access point. For each, refer to a database in which the address information for identifying the mobile terminal is associated, identify user identification information for identifying the user of the mobile terminal, and in association with the user identification information, And storing the position information notified from the access point as needed.
[0014]
In order to solve the above-mentioned problem, according to the invention described in claim 8, a mobile terminal connected to a network is changed from an access point for connecting a mobile terminal existing in a predetermined area to the network by wireless communication. Notifying the address information for identifying the user and the location information indicating its own installation location, and user identification information for identifying the user of the mobile terminal based on the address information notified from the access point. For each, refer to a database in which the address information for identifying the mobile terminal is associated, identify user identification information for identifying the user of the mobile terminal, and in association with the user identification information, Storing the location information notified from the access point as needed. Characterized in that it was.
[0015]
In order to solve the above-mentioned problem, according to the ninth aspect of the present invention, address information for identifying a mobile terminal connected to a network by wireless communication and position information indicating its own installation location are used. An access point to be notified; position information storage means for storing position information for each user identification information for identifying a user of a mobile terminal connected via a network; address information and a position notified from the access point A position management unit that updates the position information of the position information storage unit as needed based on the information, and a position corresponding to the user identification information from the position information storage unit in response to an inquiry about a current position accompanied by user identification information. A position management device including notification means for acquiring and notifying information; an advertisement storage means for storing advertisement information; Customer information storage means for storing information; inquiry means for inquiring the position management device of the current position; and in response to an inquiry by the inquiry means, based on the position information from the notification means and the customer information in the customer information storage means. And a distribution means for distributing the advertisement information stored in the advertisement storage means to the mobile terminal.
[0016]
According to a tenth aspect of the present invention, in the advertisement distribution system according to the ninth aspect, the distribution unit distributes an advertisement according to a current position of the user by e-mail based on the position information. I do.
[0017]
Also, in the invention according to claim 11, in the advertisement distribution system according to claim 9, the distribution means distributes an advertisement according to the current position of the user by a Web page based on the position information. I do.
[0018]
In order to solve the above-mentioned problem, according to the twelfth aspect of the present invention, a mobile terminal existing in a predetermined area is connected to a network by a wireless communication from an access point for connecting the mobile terminal to the network. Address information for identifying the mobile terminal, and location information indicating its own installation location. Based on the address information and location information notified from the access point, the location information for each user of the mobile terminal is updated as needed. And updating the advertisement information to the mobile terminal based on the location information.
[0019]
According to a thirteenth aspect of the present invention, in the advertisement distribution method according to the twelfth aspect, an advertisement according to a current position of the user is distributed by e-mail based on the position information.
[0020]
According to a fourteenth aspect of the present invention, in the advertisement distribution method according to the twelfth aspect, an advertisement according to a current position of the user is distributed by a Web page based on the position information.
[0021]
In order to solve the above-mentioned problem, according to the invention of claim 15, a mobile terminal connected to a network from an access point for connecting a mobile terminal present in a predetermined area to the network by wireless communication. Address information for identifying the mobile terminal, and location information indicating its own installation location. Based on the address information and location information notified from the access point, the location information for each user of the mobile terminal is updated as needed. Updating and distributing advertisement information to the mobile terminal based on the location information are performed by a computer.
[0022]
Further, in order to solve the above-mentioned problem, in the invention according to claim 16, a mobile terminal connected to a network from an access point for connecting a mobile terminal existing in a predetermined area to the network by wireless communication. Address information for identifying the mobile terminal, and location information indicating its own installation location. Based on the address information and location information notified from the access point, the location information for each user of the mobile terminal is updated as needed. An advertisement distribution program for causing a computer to execute a step of updating and a step of distributing advertisement information to the mobile terminal based on the position information is recorded.
[0023]
In this invention, for each user identification information for identifying a user of a mobile terminal connected via a network, address information for identifying the mobile terminal is stored in customer information storage means, and for each of the user identification information. The location information is stored in a location information storage unit, and the location management unit refers to the customer information storage unit to identify user identification information corresponding to the address information notified from the access point, and And updates the position information stored in the position information storage means in association with the position information notified from the access point. Therefore, the location of the wireless LAN mobile terminal can be managed in real time.
[0024]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
A. Configuration of Embodiment FIG. 1 is a block diagram showing a configuration of a location information management system according to an embodiment of the present invention. In FIG. 1, mobile terminals M1, M2,..., Mx, My are terminals carried by a user, such as a notebook personal computer and a PDA, which can access the Internet by wireless (wireless LAN). Access points AP1, AP2,..., APn are installed in public wireless LAN service areas such as airports, train stations, and hamburger shops, accept access from mobile terminals within a predetermined area, connect to the Internet, and associate with mobile terminals. It informs the location management server 3 of the establishment and the MAC addresses of all the mobile terminals that are associated with itself (the location of the access point and the MAC addresses of the mobile terminals).
[0025]
The location management server 3 searches the database (customer DB: user ID, MAC address) 5 for the user ID of the corresponding MAC address, and records the current location (access point location) for each user. The location management server 3 and the database (customer DB) 5 may be on the same machine or on different machines. Further, the position management server 3 includes a position management DB 4 therein. As shown in FIG. 2, the location management DB 4 stores the current location (location of the access point) and the current location update date and time for each user ID.
[0026]
As shown in FIG. 3, the database (customer DB) 5 stores a user ID and a MAC address in association with each other. Further, as shown in FIG. 4, the database (customer DB) 5 stores an area number in association with an installation location of an access point, that is, an area.
[0027]
In the present embodiment, the current positions of the mobile terminals M1 to My are obtained by the following two methods.
[0028]
(A) The SNMP TRAP wireless LAN access points AP1 to APn notify the location management server 3 that the mobile terminals M1 to My have been associated (notify the installation location of the access point and the MAC address of the mobile terminal). FIG. 5 shows a TRAP packet format of the SNMP TRAP method.
[0029]
(B) SNMP polling method The location management server 3 periodically inquires all access points AP1 to APn about the associated mobile terminal. Each of the access points AP1 to APn notifies the location management server 3 of the MAC addresses of all the mobile terminals currently associated with the access point AP (the location of the access point and the MAC address of the mobile terminal). FIG. 6 shows a GET REQUEST packet format of the SNMP polling method. FIG. 7 shows a GET RESPONSE packet format of the SNMP polling method.
[0030]
In any of the methods, the location management server 3 searches the database (customer DB) 5 for the user ID of the corresponding MAC address, and records the current location (access point location) for each user.
[0031]
Here, a difference between the SNMP TRAP method and the SNMP polling method will be described. In the case of the SNMP TRAP method, since the TRAP message is sent to the location management server 3 only when the terminal associates with the access point, SNMP packet traffic can be reduced as compared with the polling method. However, since the information is not sent to the location management server 3 when the association between the terminal and the access point is released, it is necessary to determine whether the terminal is really associated with the access point at the present time. It is necessary to devise a method of comparing the current position update date and time of the management DB 4 with the current time, or confirming by polling in combination with a polling method. On the other hand, in the case of the polling method, since polling is repeated at regular intervals, SNMP packet traffic increases, but it is possible to reliably determine whether or not the terminal is currently associated with the access point.
[0032]
B. Next, the operation of the present embodiment will be described in detail.
[0033]
B-1. SNMP Trap Method First, the operation of the SNMP Trap method will be described. Here, FIG. 8 is a flowchart for explaining the operation of the SNMP TRAP method according to the present embodiment. First, the mobile terminal Mi (i = 1 to y) issues an association request to the access point APj (j = 1 to n) (step S1). Next, the access point APj permits the association of the mobile terminal Mi (step S2). The access point APj notifies its own location and the MAC address of the mobile terminal Mi to the location management server 3 by SNMP TRAP (step S3). Next, the location management server 3 searches the database (customer DB) 5 for the user ID of the corresponding MAC address, and records the current location (the location of the access point APj) in association with the user ID (step S4).
[0034]
B-2. Next, the operation of the SNMP polling method will be described. Here, FIG. 9 is a flowchart for explaining the operation of the SNMP polling method according to the present embodiment. First, the location management server 3 inquires all access points of the associated mobile terminals by SNMP GET REQUEST (step S10). Next, each access point APj (j = 1 to n) notifies the location management server 3 of its own installation location and the MAC addresses of all the mobile terminals Mi associated with itself by SNMP GETRESPONSE (step S11).
[0035]
The location management server 3 searches the database (customer DB) 5 for the user ID of the corresponding MAC address, and records the current location (the location of the access point APj) in association with the user ID (step S12). Then, it is determined whether a predetermined time has elapsed (step S13). If the predetermined time has elapsed, the process returns to step S10, and the above-described processing is repeated.
[0036]
B-3. Next, the SNMP reception packet processing of the location management server will be described. Here, FIG. 10 is a flowchart for explaining the operation of the SNMP reception packet processing of the location management server. FIG. 11 is a conceptual diagram for explaining the operation of the SNMP reception packet processing of the location management server.
[0037]
Upon receiving the SNMP packet, the location management server 3 acquires the installation location of the access point and the MAC address of the mobile terminal from the received packet (Step S20). Next, as shown in FIG. 5, the location management server 3 accesses the database (customer DB) 5 and acquires a user ID corresponding to the MAC address of the mobile terminal (step S21). Then, as shown in FIG. 5, the location management server 3 accesses the location management DB 4 and stores the acquired user ID, current location (access point installation location), and current location update date and time (location management server system time). Recording is performed (step S22).
[0038]
C. Specific Example Next, an advertisement distribution system to which the position information management system according to the present embodiment is applied will be described. Here, FIG. 12 is a block diagram illustrating a configuration of an advertisement distribution system to which the position information management system according to the present embodiment is applied. The parts corresponding to those in FIG. 1 are denoted by the same reference numerals, and description thereof is omitted. In the figure, the advertisement distribution server 10 includes an advertisement DB 11 and a customer DB 12, as shown in FIG. The advertisement distribution server 10 has a mail server function and a Web server function of distributing advertisement information to the mobile terminal M by e-mail or Web.
[0039]
As shown in FIG. 14, the advertisement DB 11 stores a current position (location of an access point), an advertisement shop name, and advertisement contents. The customer DB 12, as shown in FIG. 15, stores a user ID, a password, and a mail address.
[0040]
Next, the operation of the advertisement distribution system will be described. First, the operation when the advertisement is distributed by the mail server function will be described. Here, FIG. 16 is a sequence diagram for explaining the operation when an advertisement is distributed by the mail server function of the advertisement distribution system. First, the advertisement distribution server (mail server) 10 inquires of the position management server 3 about the current position of the user ID to which an advertisement is to be distributed (SS1). The location management server 3 compares the current location update date and time of the user ID with the current time (system time of the location management server), and confirms that the terminal uses the wireless LAN. The current position of the ID is acquired (SS2) and transmitted to the advertisement distribution server 10 (SS3). The advertisement distribution server 10 acquires and edits the advertisement shop name and the advertisement content corresponding to the current position from the advertisement DB 11 (SS4), further acquires the mail address of the user ID from the customer DB 12 (SS5), and It is delivered to the mail address as an e-mail (SS6). Therefore, the advertisement content is an advertisement according to the current position of the user.
[0041]
Next, the operation when an advertisement is distributed by the Web server function will be described. Here, FIG. 17 is a sequence diagram for explaining the operation when an advertisement is distributed by the Web server function of the advertisement distribution system. First, the mobile terminal M accesses the advertisement distribution Web page of the advertisement distribution server (Web server) 10 (SS10). In response, the advertisement distribution server 10 transmits a user ID and password input screen to the mobile terminal M (SS11). The mobile terminal M inputs a user ID and a password on the user ID and password input screen (SS12). The advertisement distribution server 10 performs user authentication using the user ID and password of the customer DB 12 (SS13). If the authentication is OK, the advertisement distribution server 10 inquires the position management server 3 of the current position of the user ID (SS14).
[0042]
The position management server 3 acquires the current position corresponding to the user ID from the position management DB 5 (SS15) and transmits the current position to the advertisement distribution server 10 (SS16). The advertisement distribution server 10 acquires the advertisement store name and the advertisement content corresponding to the current position from the advertisement DB 11, edits the Web page of the advertisement corresponding to the current position (SS17), and distributes the advertisement to the mobile terminal M that has accessed (SS17). SS18). The advertisement content is an advertisement according to the current position of the user.
[0043]
Further, the function of the location management server 3 or the function of the advertisement distribution server 10 is realized by executing a program stored in a storage unit (not shown). The storage unit is configured by a nonvolatile memory such as a hard disk device, a magneto-optical disk device, or a flash memory, a volatile memory such as a RAM (Random Access Memory), or a combination thereof. In addition, the above-mentioned storage unit is, for example, a volatile memory (RAM) in a computer system serving as a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line, for a certain period of time. Including those holding programs.
[0044]
Further, the above program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the "transmission medium" for transmitting a program refers to a medium having a function of transmitting information, such as a network such as the Internet or a communication line such as a telephone line. Further, the program may be for realizing a part of the processing described above. Furthermore, what is called a difference file (difference program) which can implement | achieve the process mentioned above in combination with the program already recorded on the position management server 3 or the advertisement distribution server 10 may be sufficient.
[0045]
As described above, the embodiment of the present invention has been described in detail with reference to the drawings. .
[0046]
【The invention's effect】
As described above, according to the present invention, for each piece of user identification information for identifying a user of a mobile terminal connected via a network, address information for identifying the mobile terminal is stored in customer information storage means. Location information for each of the user identification information is stored in a location information storage unit, and the location management unit refers to the customer information storage unit and corresponds to the user identification information corresponding to the address information notified from the access point. And the location information stored in the location information storage means in association with the user identification information is updated as needed with the location information notified from the access point. Can be managed in real time.
[Brief description of the drawings]
FIG. 1 is a block diagram illustrating a configuration of a location information management system according to an embodiment of the present invention.
FIG. 2 is a conceptual diagram showing a data configuration of a position management DB4.
FIG. 3 is a conceptual diagram showing a data structure of a customer DB 5;
FIG. 4 is a conceptual diagram showing correspondence between a region and an area number.
FIG. 5 is a conceptual diagram showing a TRAP packet format of the SNMP TRAP method.
FIG. 6 is a conceptual diagram showing a GET REQUEST packet format of the SNMP polling method.
FIG. 7 is a conceptual diagram showing a GET RESPONSE packet format of the SNMP polling method.
FIG. 8 is a flowchart for explaining the operation of the SNMP TRAP method according to the present embodiment.
FIG. 9 is a flowchart for explaining the operation of the SNMP polling method according to the present embodiment.
FIG. 10 is a flowchart illustrating an operation of an SNMP reception packet process of the location management server.
FIG. 11 is a conceptual diagram for explaining an operation of an SNMP reception packet process of the location management server.
FIG. 12 is a block diagram illustrating a configuration of an advertisement distribution system to which the position information management system according to the present embodiment is applied.
FIG. 13 is a conceptual diagram showing a data configuration of the advertisement distribution server 10.
FIG. 14 is a conceptual diagram showing a data configuration of an advertisement DB 11.
FIG. 15 is a conceptual diagram showing a data configuration of a customer DB 12;
FIG. 16 is a sequence diagram illustrating an operation when an advertisement is distributed by a mail server function of the advertisement distribution system.
FIG. 17 is a sequence diagram illustrating an operation when an advertisement is distributed by a Web server function of the advertisement distribution system.
[Explanation of symbols]
M, M1 to My Mobile terminal AP, AP1 to APn Wireless LAN access point 3 Location management server (location management means, location management device)
4 location management DB (location information storage means)
5 Customer DB (customer information storage means)
10. Advertisement distribution server (advertisement distribution device)
11 Advertisement DB (advertising storage means)
12 Customer DB (customer information storage means)

Claims (16)

Address information for identifying mobile terminals connected to the network by wireless communication, and an access point for notifying location information indicating its own installation location,
Customer information storage means for storing address information for identifying the mobile terminal, for each user identification information for identifying a user of the mobile terminal connected via the network,
Position information storage means for storing position information for each of the user identification information;
Identifying the user identification information corresponding to the address information notified from the access point with reference to the customer information storage means, the location information stored in the location information storage means in association with the user identification information, A location management unit that updates the location information with the location information notified from the access point as needed. When the connection between the mobile terminal and a network is established, the access point notifies the location management unit of address information for identifying the mobile terminal and location information indicating its own installation location. The location information management system according to claim 1, wherein: The location management means, at a predetermined time interval, the access point, the mobile terminal connected to the network inquiry,
The access point, in response to an inquiry from the location management means, address information for identifying the mobile terminal, and location information indicating its own location, notifies the location management means, characterized in that The location information management system according to claim 1. For each user identification information for identifying a user of a mobile terminal, address information for identifying the mobile terminal is associated with a database, and
From an access point for connecting a mobile terminal existing in a predetermined area to a network by wireless communication, notification of address information for identifying the mobile terminal connected to the network and position information indicating its own installation location are provided. And
A database is referred to based on the address information notified from the access point, user identification information for identifying the user of the mobile terminal is specified, and the user identification information is associated with the user identification information and notified from the access point. A position information management method characterized by storing position information at any time. The connection point, when a connection between the mobile terminal and a network is established, notifies the address information for identifying the mobile terminal and position information indicating its own installation location. 4. The position information management method according to 4. The access point, in response to an inquiry generated at a predetermined time interval, notifies the address information for identifying the mobile terminal that is connected to the network, and notifies the location information indicating its own installation location, 5. The position information management method according to claim 4, wherein: From an access point for connecting a mobile terminal existing in a predetermined area to a network by wireless communication, notification of address information for identifying the mobile terminal connected to the network and position information indicating its own installation location are provided. Steps to
Based on the address information notified from the access point, for each user identification information for identifying a user of the mobile terminal, refer to a database in which address information for identifying the mobile terminal is associated, and Specifying the user identification information for identifying the user of the terminal, storing the position information notified from the access point as needed in association with the user identification information, and causing the computer to execute the steps. Location information management program. From an access point for connecting a mobile terminal existing in a predetermined area to a network by wireless communication, notification of address information for identifying the mobile terminal connected to the network and position information indicating its own installation location are provided. Steps to
Based on the address information notified from the access point, for each user identification information for identifying a user of the mobile terminal, refer to a database in which address information for identifying the mobile terminal is associated, and Specifying the user identification information for identifying the user of the terminal, storing the location information notified from the access point as needed in association with the user identification information, and causing the computer to execute the location information management program. A recording medium characterized by being recorded. Address information for identifying mobile terminals connected to the network by wireless communication, and an access point for notifying location information indicating its own installation location,
Location information storage means for storing location information for each user identification information for identifying the user of the mobile terminal connected via the network, based on the address information and location information notified from the access point, A position management unit that updates the position information in the position information storage unit as needed, and, in response to an inquiry about a current position accompanied by user identification information, acquires position information corresponding to the user identification information from the position information storage unit and notifies A position management device comprising:
Advertisement storage means for storing advertisement information; customer information storage means for storing customer information for each user identification information; inquiry means for inquiring the current position of the position management device; and notification means for an inquiry by the inquiry means And a distribution unit that distributes the advertisement information stored in the advertisement storage unit to the mobile terminal based on the position information from the customer and the customer information in the customer information storage unit. Advertisement distribution system characterized. The advertisement distribution system according to claim 9, wherein the distribution unit distributes an advertisement corresponding to a current position of the user by e-mail based on the position information. 10. The advertisement distribution system according to claim 9, wherein the distribution unit distributes an advertisement according to the current position of the user on a Web page based on the position information. From an access point for connecting a mobile terminal existing in a predetermined area to a network by wireless communication, notification of address information for identifying the mobile terminal connected to the network and position information indicating its own installation location are provided. And, based on the address information and the location information notified from the access point, update the location information for each user of the mobile terminal as needed.
An advertisement delivery method, wherein advertisement information is delivered to the mobile terminal based on the location information. 13. The advertisement distribution method according to claim 12, wherein an advertisement corresponding to the current position of the user is distributed by e-mail based on the position information. 13. The advertisement distribution method according to claim 12, wherein an advertisement corresponding to the current position of the user is distributed by a Web page based on the position information. From an access point for connecting a mobile terminal existing in a predetermined area to a network by wireless communication, notification of address information for identifying the mobile terminal connected to the network and position information indicating its own installation location are provided. Updating the location information for each user of the mobile terminal at any time based on the address information and the location information notified from the access point,
Distributing advertisement information to the mobile terminal based on the position information. From an access point for connecting a mobile terminal existing in a predetermined area to a network by wireless communication, notification of address information for identifying the mobile terminal connected to the network and position information indicating its own installation location are provided. Updating the location information for each user of the mobile terminal at any time based on the address information and the location information notified from the access point,
Recording an advertisement distribution program for causing a computer to execute a step of distributing advertisement information to the mobile terminal based on the position information.

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