JP2009187486A - Information delivery system, information delivery method and information delivery server - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To notify a user that he or she is close to a destination (landmark), to facilitate achievement of a purpose by registering the destination as a target. <P>SOLUTION: This information delivery system is provided with: a portable terminal 10 for transmitting type information of a landmark designated by an input part from a communication part to an information delivery server 50 and continuously transmitting position information of the portable terminal 10 acquired by a position information acquiring part to the information delivery server 50, and the information delivery server 50 for acquiring position information of a landmark recorded in a service database part from an external server 60, continuously deriving a distance between the portable terminal 10 and the landmark from position information of the portable terminal 10 and the landmark, and notifying the portable terminal 10 that the landmark is nearby when the distance between them is a prescribed value or below. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to an information distribution system, an information distribution method, and an information distribution server.

  Second-generation and later mobile phones not only have a function of making a call by connecting to another mobile phone or a fixed phone via a base station network, but also exchange packet data with a server or the like via the base station network. It also has a function of performing data communication. Then, using such data communication functions, a service for sending and receiving e-mails using a mobile phone and a service for acquiring and browsing page data from a server using a mobile phone are provided.

  Recently, mobile phones having a function of acquiring location information by using communication with GPS or a base station are also used, and such mobile phones display map information on a liquid crystal screen to display pedestrians. A service for navigating is also provided. In such a pedestrian navigation service, when a destination is entered, the route from the current position to the destination is displayed on the map, the map is scrolled according to the movement and direction of the user holding the mobile phone, and the direction is Converted.

Japanese Patent Laid-Open No. 2003-67529 can be cited as another example of a service that uses such a function of acquiring location information of a mobile phone. In the service described in this publication, route data is downloaded to the monitored person's mobile phone, the mobile phone acquires its own location information while the monitored person is moving, and the acquired location information is obtained from the downloaded route. When the deviation is detected, the monitoring person is notified that the monitored person has left the route. By providing an infant with a mobile phone corresponding to such a service, it is possible to automatically detect that the infant has left the school road or the like with the mobile phone and notify a guardian or the like.
JP2003-67529

  According to the pedestrian navigation system described above, the user can be navigated to a predetermined destination using a mobile phone. However, even if the pedestrian navigation system is suitable for a case where the purpose is to move efficiently from the current location to the destination, for example, a case where “I want to send a letter if there is a post while commuting to the company” , "I want to buy food on the way home from home" is not appropriate. It is not preferable from the viewpoint of power consumption to keep the pedestrian navigation system in an ON state in order to achieve a purpose that is not the highest priority, and it is difficult to consider that the user keeps watching the liquid crystal screen for a long time. In fact, the problem in achieving these non-priority objectives is that the user forgets that there was such an objective, and the pedestrian navigation system has no such problem. It does not have a function to solve.

  In view of the above circumstances, the present invention registers a destination (landmark) such as a post or a supermarket as a target in order to achieve a non-priority purpose, and notifies a user approaching such a landmark. An object of the present invention is to provide an information distribution system, method, and server capable of prompting execution of an object.

In order to solve the above problems, a first aspect of the present invention is an information distribution system including a mobile terminal possessed by a user and a server that performs information distribution by communicating with the mobile terminal.
The portable terminal is
A communication unit for communicating with the server;
A location information acquisition unit for acquiring location information of the mobile terminal;
An input unit for allowing the user to specify target landmark type information;
The operation of the communication unit, the position information acquisition unit and the input unit is controlled, and the type information of the landmark designated by the input unit is transmitted from the communication unit to the server. A terminal control unit that continuously transmits the acquired location information of the mobile terminal to the server,
The server
A communication unit that communicates with the mobile terminal and an external server; a database unit that records type information of landmarks transmitted from the mobile terminal;
The communication unit and the database unit are controlled to acquire the position information of the landmark recorded in the database unit from an external server, and the distance between the mobile terminal and the landmark is continuously determined from the position information of the landmark. An information distribution system is provided that includes a server control unit that derives and notifies the portable terminal that the landmark is near when the distance between the two becomes a predetermined value or less.

According to a second aspect of the present invention, there is provided an information distribution system including a portable terminal possessed by a user and a server that communicates with the portable terminal and distributes information.
The portable terminal is
A communication unit for communicating with the server;
A location information acquisition unit for acquiring location information of the mobile terminal;
An input unit for allowing the user to specify target landmark type information;
The operation of the communication unit, the position information acquisition unit and the input unit is controlled, and the type information of the landmark designated by the input unit is transmitted from the communication unit to the server. A terminal control unit that continuously transmits the acquired location information of the mobile terminal to the server,
The server
A communication unit that communicates with the mobile terminal; a first database unit that records landmark type information transmitted from the mobile terminal;
A second database section that records the landmark position information;
When the communication unit and the first and second database units are controlled to derive the distance between the mobile terminal and the landmark from the positional information, and the distance between the two becomes a predetermined value or less. And a server control unit for notifying that the landmark is near to the portable terminal.

  In the first and second aspects of the present invention as described above, it is preferable that the server control unit simultaneously notifies the position of the landmark when notifying the portable terminal that the landmark is near. It is more preferable if the map information around the portable terminal is distributed simultaneously.

Further, according to a third aspect of the present invention, there is provided an information distribution method for performing information distribution by performing communication between a portable terminal possessed by a user and a server.
Transmitting the landmark type information targeted by the mobile terminal to a server;
Recording the landmark type information transmitted from the mobile terminal by the server;
The server obtaining position information of the landmark from an external server;
The mobile terminal continuously transmitting its location information to the server;
The server continuously deriving the distance between the mobile terminal and the landmark position information, and notifying the mobile terminal that the landmark is near when the distance between the two becomes a predetermined value or less; An information distribution method is provided.

  In the third aspect of the present invention as described above, when notifying the mobile terminal that the landmark is near, it is preferable to simultaneously notify the location of the landmark, and map information around the mobile terminal is displayed. It is more preferable if they are distributed simultaneously.

Furthermore, a fourth aspect of the present invention is an information distribution server that communicates with a mobile terminal held by a user and distributes information.
A communication unit that communicates with the mobile terminal and an external server; a database unit that records type information of landmarks transmitted from the mobile terminal;
The communication unit and the database unit are controlled to acquire the position information of the landmark recorded in the database unit from an external server, and the distance between the mobile terminal and the landmark is continuously determined from the position information of the landmark. An information distribution server is provided that includes a server control unit that derives and notifies the portable terminal that the landmark is near when the distance between the two becomes a predetermined value or less.

  In the fourth aspect of the present invention as described above, it is preferable that the server control unit simultaneously notifies the location of the landmark when notifying the portable terminal that the landmark is near. It is more preferable if map information around the terminal is distributed simultaneously.

  The information distribution system of the present invention transmits the target landmark type information to the server, and continuously transmits its position information to the server, and the landmark type information transmitted from the mobile terminal. To acquire the location information of the landmark from an external server, and continuously derive the distance between the location from the location information of the mobile terminal and the landmark. And a server for notifying the terminal that the landmark is near. Therefore, if a destination (landmark) that should be used for a task with a low priority is transmitted to the server and registered, the portable terminal held by the user and the landmark are within a predetermined distance from the server to the portable terminal. Since the notification that the landmark is close is made, it is possible to notify the user of the approach of the destination where the task should be performed, and thereby the user can be encouraged to perform the task having a low priority. In another information distribution system of the present invention, the server has a second database that records landmark position information in addition to a first database that records landmark type information transmitted from a portable terminal. Therefore, the same operation and effect can be obtained without acquiring landmark position information from an external server.

  In addition, the information distribution method of the present invention includes a step in which the portable terminal transmits the target landmark type information to the server, a server records the landmark type information transmitted from the portable terminal, and the server Acquiring the location information of the landmark from the external server, the step of continuously transmitting the location information of the mobile terminal to the server, and the server continuing the distance between the location information of the mobile terminal and the landmark. And the step of notifying the portable terminal that the landmark is near when the distance between the two becomes a predetermined value or less. Therefore, similarly to the information distribution system, it is possible to automatically notify the mobile terminal owned by the user of the approach of the destination to be used for work with a low priority.

  Furthermore, the information distribution server of the present invention acquires the position information of the landmark recorded in the database from the external server, and continuously derives the distance between the two from the position information of the portable terminal and the landmark, A server control unit for notifying the portable terminal that the landmark is near when the value becomes equal to or less than a predetermined value. Therefore, similar to the information distribution system and the information distribution method, it is possible to automatically notify the portable terminal owned by the user of the approach of the destination to be used for work with a low priority.

  In the present invention, when notifying the mobile terminal that the landmark is near, if the location of the landmark is notified at the same time, the user can be guided to the landmark to be used. In addition, if map information around the mobile terminal is simultaneously distributed, the map information can be displayed on the mobile terminal held by the user to inform the user of the location of the landmark in an easy-to-understand manner.

  Hereinafter, the best mode for carrying out the present invention will be described. FIG. 1 is a configuration diagram of an information distribution system according to the first embodiment of the present invention. When this information distribution system 100 registers a destination (landmark) such as a post or a supermarket transmitted from the mobile terminal 10 in the information distribution server 20, and detects that the user's mobile terminal 10 has approached the landmark. The information distribution server 20 performs an operation of notifying the mobile terminal 10 that the landmark is nearby and prompting the target to be executed.

  As shown in FIG. 1, the information distribution system 100 includes a mobile terminal 10 and an information distribution server 50 as main components, and the mobile terminal 10 is connected to a base station network 30 via a base station 20. In this configuration, the server 50 on the network 40 connected to the base station network 30 via a gateway can communicate bidirectionally. The information distribution server 50 can also communicate with an external server 60 that is also provided on the network 40. Hereinafter, the mobile terminal 10, the information distribution server 50, and the external server 60 will be described.

  FIG. 2 is a functional block diagram of the mobile terminal 10. As shown in FIG. 2, the mobile terminal 10 mainly includes a position information acquisition unit 11, a display unit 12, an input unit 13, a control unit 14, a communication unit 15, and a storage unit 16. Yes. Hereinafter, each functional block will be described.

  The position information acquisition unit 11 has a function of acquiring the current position of the mobile terminal 10. Such position information acquisition unit 11 can be configured using a GPS module that acquires position information using, for example, GPS (Global Positioning System, Gallo Positioning System). Here, the GPS module implements a function of receiving signals from a plurality of GPS satellites existing in the sky and calculating position information based on the intensity of each received signal by a predetermined electronic component and IC chip. It is a hardware component. In addition, the function of acquiring position information in this way can also be realized by calculating in the same manner as described above by receiving signals from a plurality of base stations in the communication unit 15 described later. In this case, the position information acquisition unit 11 may use the communication unit 15. Such position information acquisition unit 11 acquires current position information by operating under the control of the control unit 14, and returns the acquired position information to the control unit 14.

  The display unit 12 is a liquid crystal display device or an organic EL display device, and displays the operating state of the mobile terminal 10, a user interface for operating the mobile terminal 10, and the like under the control of the control unit 14. The user of the mobile terminal 10 knows the state of the mobile terminal 10 via the user interface shown on the display unit 12, and uses this to operate the mobile terminal 10.

  The input unit 13 is an input device such as a keypad and other buttons provided on a casing (not shown) of the mobile terminal 10, and is a key corresponding to each key or button when operated by the user. The event is notified to the control unit 14 and used for various operations or control.

  The control unit 14 is a functional block that is virtually configured by executing a predetermined program on a CPU (not shown), and includes a position information acquisition unit 11, a display unit 12, an input unit 13, a control of the mobile terminal 10. Various functions of the mobile terminal 10 are realized by exchanging data and control signals with the functional blocks such as the unit 14, the communication unit 15, and the storage unit 16. For example, the control unit 14 activates the position information acquisition unit 11 to acquire the current position information, and performs control to add a predetermined process to the acquired position information. Moreover, the control part 14 controls operation | movement of the portable terminal 10 so that operation | movement of the information delivery system mentioned later may be implement | achieved.

  The communication unit 15 operates under the control of the control unit 14 to wirelessly connect to the mobile communication network via the base station 20 and communicate with other nodes. Examples of the communication here include circuit-switched communication and packet-switched communication. By using the former, it becomes possible to make a call with another mobile terminal or a fixed terminal by a circuit switching method, and by using the latter, mail or a packet communication method can be sent to another mobile terminal, a fixed terminal or a server. A message can be transmitted.

  The storage unit 16 is a readable / writable memory for storing predetermined information under the control of the control unit 14 and providing information stored in the control unit 14. As described above, the control unit 14 is configured by executing a predetermined program on a CPU (not shown). However, the storage unit 16 stores such a program and handles various types handled by the mobile terminal 10. Stores data, parameters, etc.

  FIG. 3 is a functional block diagram of the information distribution server 50. As shown in FIG. 3, the information distribution server 50 mainly includes a service database unit 51, a control unit 52, a communication unit 53, and a storage unit 54. Hereinafter, each functional block will be described.

  The service database unit 51 is a database that stores an identification number of a mobile phone that uses a service provided by the information distribution system 100 according to the present invention and a landmark type in association with each other. FIG. 4 shows a minimum configuration as such a database. As shown in FIG. 4, the service database unit 51 can register information such as a post, a supermarket, a convenience store, and a specific series of chain stores as the type of landmark.

  The control unit 52 is a functional block that is virtually configured by executing a predetermined program on a CPU (not shown) like the control unit 14 in the mobile terminal 10, and the service database unit 51 of the information distribution server 50. Various operations of the information distribution server 50 are realized by exchanging data and control signals with each functional block such as the communication unit 53 and the storage unit 54. The operation of the information distribution server 50 realized by the control unit 52 will be described together with the description of the operation of the information distribution system 100 as a whole.

  The communication unit 53 operates under the control of the control unit 52 to connect to the network 40 and communicate with other nodes. Although there is no particular limitation on the network 40, it is desirable that the network 40 is open to the Internet in consideration of the ease of connection with an external server, and the network 40 itself may be the Internet. The communication unit 53 can communicate with the mobile terminal 10 via the network 40 and the base station network 30, and can communicate with the external server 60 connected to the network 40. Is possible. The storage unit 54 is a readable / writable memory for storing predetermined information under the control of the control unit 52 and providing the information stored in the control unit 14, and includes various types handled by the information distribution server 50. Stores data, parameters, etc.

  FIG. 5 is a functional block diagram of the external server 60 that communicates with the information distribution server 50 via the network 40. The external server 60 mainly includes a communication unit 61, a landmark database unit 62, a control unit 63, a storage unit 64, and a map database unit 65. Here, the communication unit 61, the control unit 63, and the storage unit 64 are substantially the same blocks as the information distribution server 50. The landmark database unit 62 is a database that records position information of landmarks such as public facilities such as posts, stores such as supermarkets and specific chain stores. The map database unit 65 is a database that records map information.

  In the external server 60 having such a configuration, when the communication unit 61 receives HTTP communication related to a predetermined Web API from the network 40, the control unit 63 that has received the notification receives a predetermined data from the landmark data unit 62 or the map database unit 65. It has a function of extracting data and returning the extracted data from the communication unit 61 using an HTTP response. Thus, by providing the Web API that is open to the network, the external server 60 can be used from various servers connected to the network 40.

  Hereinafter, when the user registers a predetermined landmark from the portable terminal 10 to the information distribution server 50 by the information distribution system 100 according to the present embodiment, and the user carrying the portable terminal 10 approaches the predetermined landmark, An operation for notifying the mobile terminal 10 that the landmark is near from the information distribution server 50 and prompting the target to be executed will be described with reference to the flowcharts of FIGS. 6 and 7.

  First, the first operation shown in FIG. 6 will be described.

  In this operation, the user first selects a landmark while operating the input device 13 while using the GUI displayed on the display unit 12 of the mobile terminal 10 (ST101). At this time, the landmark may be selected from a list displayed on the display unit 12 or may be selected by inputting the name of the landmark from the input device 13. However, in the latter case, there is a case where there is no external server having the location information of the selected landmark and the service may not be realized. Therefore, when the service cannot be realized, it is necessary to notify the user to that effect.

  Next, the portable terminal 10 transmits the type information of the landmark selected in ST101 to the information distribution server 50 (ST102). Here, as a method of transmitting information, HTTP communication or HTTPS communication may be used, or a predetermined format mail may be used. The information distribution server 50 that has received the landmark type information transmitted from the portable terminal 10 associates the identification number of the portable terminal 10 with the landmark type and records them in the service database unit 51 (ST103).

  After recording in the service database unit 51 in ST103, the information distribution server 50 requests landmark position information from the external server 60 (ST104). This request can be made when the information distribution server 50 calls a predetermined Web API published by the external server 60. The external server 60 extracts the position information of the landmark designated by the information distribution server 50 from the landmark database unit 62 according to the called Web API, and transmits the extracted landmark position information to the information distribution server 50. (ST105). Here, for example, when there are a plurality of landmarks on the map, the external server 60 collectively transmits the position information of each landmark to the information distribution server 50. Receiving the landmark position information, the information distribution server 50 records the landmark position information in the storage unit 54 (ST106).

  On the other hand, the portable terminal 10 periodically detects position information by the position information acquisition unit 11, and transmits the detected position information to the information distribution server 50 (ST107). Here, the method for transmitting the position information may be HTTP communication, HTTPS communication, or mail as in ST102.

  When the location information transmitted from the mobile terminal 10 is received, the information distribution server 50 searches the service database unit 51 to identify the type of landmark associated with the identification number of the mobile terminal 10 that has transmitted the location information. The distance between the mobile terminal 10 and the landmark is derived from the position information of the landmark acquired from the external server 60 and stored in the storage unit 54 and the position information transmitted from the mobile terminal 10 (ST108). At this time, when there are a plurality of landmarks and a plurality of pieces of position information are registered, the distance to the nearest landmark is derived. Next, it is determined whether the distance derived in ST108 is equal to or less than a predetermined value (ST109).

    When it is determined that the distance derived in ST109 is less than or equal to the predetermined value, the information distribution server 50 notifies the mobile terminal 10 that the landmark is near (ST110), and the mobile terminal 10 that has received this notification displays the display unit 12. Display that the landmark is near (ST111), and end the series of operations. On the other hand, when it is determined that the distance derived in ST109 is not less than the predetermined value, the operations after ST107 are repeated again.

  According to the operation as described above, after the landmark selected by the user is registered in the information distribution server 50, the mobile terminal 10 carried by the user periodically transmits the position information, and the information distribution server 50 Each time position information is received, the distance between the nearest landmark and the mobile terminal 10 is derived, and if the distance is equal to or smaller than a predetermined value, the mobile terminal 10 is notified that the landmark is close. Therefore, if a destination (post, supermarket, etc.) for achieving a task that is not the highest priority is registered as a landmark, the information distribution server 50 notifies when the moving user approaches within a predetermined distance of the landmark. As a result, it is possible to remind the user of the existence of an errand that is not the highest priority, thereby prompting the user to execute an errand that has a low priority and is often forgotten.

  Next, the second operation shown in FIG. 7 will be described.

  Since ST201 to ST209 in the second operation are the same as ST101 to ST109 in the first operation, description thereof will be omitted. Thereafter, when it is determined that the distance derived in ST209 is less than or equal to the predetermined value, the information distribution server 50 transmits the location information of the mobile terminal 10 to the external server 60 and requests map information around the mobile terminal 10 and the landmark. (ST210). Receiving this request, the external server 60 acquires map information from the map database 64 based on the position information of the mobile terminal 10, and transmits the map information to the information distribution server 50 (ST211). The information distribution server 50 that has received the map information notifies the mobile terminal 10 that the landmark is near and transmits the map information (ST212). When the mobile terminal 10 receives the map information together with this notification, the mobile terminal 10 displays that the landmark is near together with the surrounding map on the display unit 12 (ST213), and ends the series of operations. If the location information of the mobile terminal 10 and the landmark is added to the map information transmitted by the information distribution server 50 in ST212, these locations can be simultaneously displayed in the map information displayed in ST213. On the other hand, when it is determined that the distance derived in ST209 is not less than or equal to the predetermined value, the operations after ST207 are repeated as in the first operation.

  According to the second operation as described above, as in the first operation, when the distance between the nearest landmark and the mobile terminal 10 is equal to or smaller than a predetermined value, the mobile terminal 10 is notified that the landmark is close. In addition, the mobile terminal 10 and the map information around the landmark are displayed on the display unit 12 of the mobile terminal 10. Thus, not only can the user be reminded of the existence of an errand that is not the highest priority, but the user can be guided where the errand should be executed.

  The embodiment of the present invention has been described above, but the present invention is not limited to this, and it is needless to say that various improvements and modifications can be made without departing from the spirit of the present invention.

  For example, in the first and second operations in the above embodiment, a series of operations are terminated after ST111 and ST213. However, after a predetermined display is completed, operations after ST107 and ST207 are repeated. In this case, a series of operations may be ended after an explicit end instruction is input from the input unit 13 of the mobile terminal 10. In the above embodiment, the case where one external server 60 includes the landmark database unit 62 and the map database unit 64 has been described. However, the external server 60 may be configured to be distributed to a plurality of servers. is there. In addition, a memo regarding an errand to be executed with a predetermined landmark may be input to the mobile terminal 10 and the memo may be displayed together when notifying that the landmark exists nearby. it can.

  Also, here, the landmark type information is transmitted from the portable terminal 10 carried by the user to the information distribution server 50, and the information database server associates the identification number and the landmark type of the portable terminal 10 with the information database server. Although the case of registration in 51 is shown, the same registration may be performed in the information distribution server 50 from another portable terminal or computer. Furthermore, here, the case of registering a post, a supermarket, a specific chain store, etc. as the type of landmark has been shown, but it is also possible to register a vehicle such as a bus, train, taxi, etc. Can be registered as a landmark. However, in this case, since the position of the landmark changes with time, it is necessary to update the landmark position information held by the information distribution server 50 at a predetermined cycle. It is good also as a structure which updates the positional information on a landmark according to the timing which derives | leads-out the distance of the portable terminal 10 and a landmark.

  Furthermore, although the case where the information distribution server 50 acquires the landmark position information from the external server 60 is shown here, the information distribution server 50 itself may have a database of landmark position information. it can.

1 is a configuration diagram of an information distribution system according to an embodiment of the present invention. The functional block diagram of the portable terminal 10. FIG. The functional block diagram of the information delivery server 50. FIG. The figure which shows the minimum structure of the service database part 51. FIG. The functional block diagram of the external server 60. FIG. The flowchart of 1st operation | movement. The flowchart of 2nd operation | movement.

Explanation of symbols

10 mobile terminal 20 base station 30 base station network 40 network 50 information distribution server 60 external server

Claims (10)

In an information distribution system having a mobile terminal possessed by a user and a server that communicates with the mobile terminal and distributes information,
The portable terminal is
A communication unit for communicating with the server;
A location information acquisition unit for acquiring location information of the mobile terminal;
An input unit for allowing the user to specify target landmark type information;
The operation of the communication unit, the position information acquisition unit and the input unit is controlled, and the type information of the landmark designated by the input unit is transmitted from the communication unit to the server. A terminal control unit that continuously transmits the acquired location information of the mobile terminal to the server,
The server
A communication unit that communicates with the mobile terminal and an external server; a database unit that records type information of landmarks transmitted from the mobile terminal;
The communication unit and the database unit are controlled to acquire the position information of the landmark recorded in the database unit from an external server, and the distance between the mobile terminal and the landmark is continuously determined from the position information of the landmark. An information distribution system comprising: a server control unit that derives and notifies the portable terminal that the landmark is near when the distance between the two becomes a predetermined value or less. In an information distribution system having a mobile terminal possessed by a user and a server that communicates with the mobile terminal and distributes information,
The portable terminal is
A communication unit for communicating with the server;
A location information acquisition unit for acquiring location information of the mobile terminal;
An input unit for allowing the user to specify target landmark type information;
The operation of the communication unit, the position information acquisition unit and the input unit is controlled, and the type information of the landmark designated by the input unit is transmitted from the communication unit to the server. A terminal control unit that continuously transmits the acquired location information of the mobile terminal to the server,
The server
A communication unit that communicates with the mobile terminal; a first database unit that records landmark type information transmitted from the mobile terminal;
A second database section that records the landmark position information;
When the communication unit and the first and second database units are controlled to derive the distance between the mobile terminal and the landmark from the positional information, and the distance between the two becomes a predetermined value or less. And a server control unit for notifying that the landmark is near to the portable terminal.   The information distribution system according to claim 1 or 2, wherein the server control unit simultaneously notifies the position of the landmark when notifying the portable terminal that the landmark is near.   The server control unit, when notifying that the landmark is near to the mobile terminal, simultaneously distributes map information around the mobile terminal, according to any one of claims 1 to 3. The information distribution system described. In an information distribution method for performing information distribution by communicating between a mobile terminal owned by a user and a server,
Transmitting the landmark type information targeted by the mobile terminal to a server;
Recording the landmark type information transmitted from the mobile terminal by the server;
The server obtaining position information of the landmark from an external server;
The mobile terminal continuously transmitting its location information to the server;
The server continuously deriving the distance between the mobile terminal and the landmark position information, and notifying the mobile terminal that the landmark is near when the distance between the two becomes a predetermined value or less; And an information delivery method characterized by:   6. The information distribution method according to claim 5, wherein when notifying the portable terminal that the landmark is near, the position of the landmark is notified at the same time.   The information distribution method according to claim 6, wherein when notifying the portable terminal that a landmark is near, map information around the portable terminal is simultaneously distributed. In an information distribution server that communicates with a mobile terminal owned by a user and distributes information,
A communication unit that communicates with the mobile terminal and an external server; a database unit that records type information of landmarks transmitted from the mobile terminal;
The communication unit and the database unit are controlled to acquire the position information of the landmark recorded in the database unit from an external server, and the distance between the mobile terminal and the landmark is continuously determined from the position information of the landmark. An information distribution server comprising a server control unit that derives and notifies the portable terminal that the landmark is near when the distance between the two becomes a predetermined value or less.   The information distribution server according to claim 8, wherein the server control unit simultaneously notifies the position of the landmark when notifying the portable terminal that the landmark is near.   10. The information distribution server according to claim 8, wherein the server control unit simultaneously distributes map information around the mobile terminal when notifying the mobile terminal that the landmark is near. 11. .

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