JP5400076B2 - Content distribution system, distribution relay device, content distribution method, content distribution relay method, and program - Google Patents

Description

  The present invention relates to a content distribution technology, and more particularly to a content distribution technology for distributing content to a mobile terminal via a wireless line.

2. Description of the Related Art In recent years, with the enhancement of functions of mobile terminals, various contents can be displayed on the screen by accessing the WEB screen using a browser function installed in the mobile terminal.
Using such functions of mobile terminals, the location of mobile terminals is specified by using Area One Seg or GPS in wireless LAN connection services as a mechanism for content distribution limited to a certain area. There is a technology for distributing content.

  Specifically, a technique has been proposed for distributing content corresponding to a radio base station ID to a mobile terminal by transmitting the ID of the radio base station to which the mobile terminal is connected and the mobile terminal ID to the content distribution apparatus. (See, for example, Patent Document 1). In addition, a signal from a radio base station whose installation position is known is received, and the absolute position of the mobile terminal is detected based on the principle of triangulation by the position specifying function provided in the mobile terminal, and the terminal position is supported. A technique for distributing content has been proposed (see, for example, Patent Document 2).

JP 2002-015218 A JP 2005-295380 A

However, such a conventional technique has a problem in that it is difficult to distribute contents corresponding to an area where a mobile terminal exists by distinguishing between relatively narrow areas such as indoors.
That is, since the radio base station is usually designed to form a communication area of a certain extent, even if the radio base station to which the mobile terminal is connected is specified, from the radio base station ID, The position of the mobile terminal cannot be specified in an area narrower than the communication area. In addition, in the method using GPS, since the radio wave from the GPS satellite does not reach, the position of the mobile terminal cannot be specified indoors.

In addition, in order to specify the position of the mobile terminal itself, the mobile terminal needs to be provided with additional functions such as GPS and a position specifying function in advance. The service cannot be provided.
The present invention is for solving such a problem, and even in a relatively narrow area provided indoors or the like, content corresponding to an area where a mobile terminal exists can be distributed separately for each area. The purpose is to provide content distribution technology.

  In order to achieve such an object, a content distribution system according to the present invention provides a plurality of wireless base stations that connect a mobile terminal via a wireless line, and an arbitrary content among stored content stored in advance. A distribution relay comprising: a content distribution device that selects and distributes to a mobile terminal; and a distribution relay device that notifies the content distribution device of a distribution request for distributing related content associated with the wireless base station to the mobile terminal The apparatus includes a radio wave intensity registration unit that registers, in a storage unit, radio wave intensity information that includes a set of terminal identification information and radio wave intensity related to a mobile terminal, and radio base station base station identification information notified from a radio base station, In the terminal identification information of the mobile terminal and the base station identification information of the radio base station included in the HTTP request from the mobile terminal received via the base station Accordingly, the radio wave intensity corresponding to the terminal identification information and the base station identification information is acquired from the storage unit, and the distribution intensity of the related content is determined by comparing the obtained radio wave intensity with a preset reference intensity. When the distribution determination unit determines that the related content can be distributed, the distribution determination unit notifies the content distribution device of a distribution request for distributing the related content to the mobile terminal, and is distributed from the content distribution device. A distribution relay unit that transfers the related content to the mobile terminal via the wireless base station, and the content distribution device is associated with the wireless base station from the stored content in response to a distribution request from the distribution relay device. And a distribution control unit for selecting the related content to be distributed to the distribution relay device.

  At this time, the distribution relay device further includes a WEB processing unit that temporarily holds the transmission of the HTTP response to the HTTP request when the HTTP request is received, and the distribution determination unit notifies the wireless base station while the HTTP response transmission is pending. About the radio field intensity regarding the mobile terminal that has been made, it is determined whether or not the related content can be distributed by comparing with the reference strength, and the related content distributed from the content distribution device in response to the distribution request is transmitted as an HTTP response via the wireless base station. You may make it transfer to a portable terminal.

  In addition, while the transmission of the HTTP response is pending, the WEB processing unit may distribute empty data including no content instead of the HTTP response to the mobile terminal via the wireless base station.

  In addition, when the first HTTP request transmitted from the mobile terminal is received for the first time after the mobile terminal is connected to the radio base station via the radio line, the content delivery apparatus provided for the mobile terminal in advance A WEB processing unit that transmits connection switching to the WEB screen, and a distribution determination unit that receives the second HTTP request transmitted from the portable terminal in response to the connection switching; It may be determined whether or not the related content can be distributed by comparing the strength.

  In addition, when the distribution determining unit determines that the related content can be distributed by the distribution determining unit, the mobile terminal transmits a distribution request for distributing the related content to the mobile terminal. The terminal may be instructed, and the distribution request received from the portable terminal may be relayed and notified to the content distribution apparatus.

  In addition, the distribution relay device according to the present invention sends a distribution request for distributing related content associated with the radio base station to the mobile terminal connected to the radio base station via a radio line to the content distribution device. A broadcast relay device that notifies the radio base station of radio wave strength information that is notified from a radio base station and that is registered in a storage unit with radio wave strength information that includes a set of terminal identification information and radio wave intensity related to a mobile terminal and base station identification information of a radio base station Based on the terminal identification information of the portable terminal and the base station identification information of the wireless base station included in the HTTP request from the portable terminal received via the strength registration unit and the wireless base station, the terminal identification information and the base station identification Distribution of related content by acquiring radio wave intensity corresponding to information from the storage unit and comparing the obtained radio wave intensity with a preset reference intensity A distribution determination unit that determines whether or not the distribution determination unit determines that the related content can be distributed, and notifies the content distribution device of a distribution request for distributing the related content to the mobile terminal. A distribution relay unit that transfers the related content distributed from the mobile terminal to the mobile terminal via the wireless base station.

  In addition, the content distribution method according to the present invention selects and distributes arbitrary content from among a plurality of wireless base stations that connect a mobile terminal via a wireless line and stored content stored in advance to the mobile terminal. A content distribution method used in a content distribution system including a content distribution device and a distribution relay device for notifying the content distribution device of a distribution request for distributing related content associated with a radio base station to a mobile terminal. Then, the radio wave strength registration unit of the distribution relay device stores in the storage unit the radio wave strength information that is notified from the radio base station and includes the terminal identification information related to the mobile terminal and the radio wave strength and the base station identification information of the radio base station. The radio wave intensity registration step to be registered and the HTT from the portable terminal received by the distribution determination unit of the distribution relay device via the radio base station Based on the terminal identification information of the mobile terminal and the base station identification information of the radio base station included in the request, the radio field intensity corresponding to the terminal identification information and the base station identification information is obtained from the storage unit, and the obtained radio field intensity A distribution determination step for determining whether or not related content can be distributed by comparing the reference strength with a reference strength set in advance, and when the distribution relay unit of the distribution relay device determines that the related content can be distributed in the distribution determination step A distribution relay step of notifying the content distribution device of a distribution request for distributing the related content to the mobile terminal, and transferring the related content distributed from the content distribution device to the mobile terminal via the wireless base station; In response to a distribution request from the distribution relay device, the distribution control unit of the content distribution device Select the related content associated with the radio base station, and a distribution control step of distributing the distribution relay device.

  At this time, when the WEB processing unit of the distribution relay apparatus receives an HTTP request, the WEB processing unit further includes a WEB processing step that temporarily suspends transmission of an HTTP response to the HTTP request. With respect to the radio field intensity related to the mobile terminal notified from the base station, it is determined whether or not the related content can be distributed by comparing with the reference intensity, and the related content distributed from the content distribution apparatus in response to the distribution request is transmitted to the wireless base station as an HTTP response. You may make it transfer to a portable terminal via a station.

  In the WEB processing step, empty data that does not include content may be distributed to the mobile terminal via the radio base station in place of the HTTP response while the HTTP response transmission is pending.

  In addition, when the mobile terminal of the distribution relay device receives the first HTTP request transmitted from the mobile terminal for the first time after the mobile terminal is connected to the wireless base station via the wireless line, it is provided in advance for the mobile terminal. A WEB processing step of transmitting a connection switch to the content distribution WEB screen, wherein the distribution determination step relates to the portable terminal in response to the reception of the second HTTP request transmitted from the portable terminal in response to the connection switching. It may be determined whether or not the related content can be distributed by comparing the radio wave intensity and the reference intensity.

  In addition, in the distribution relay step, when it is determined that the related content can be distributed in the distribution determination step, the mobile terminal is notified of a distribution request for distributing the related content to the mobile terminal. The terminal may be instructed, and the distribution request received from the portable terminal may be relayed and notified to the content distribution apparatus.

Also, the content distribution relay method according to the present invention provides a distribution request for distributing a related content associated with a radio base station to a mobile terminal connected to the radio base station via a radio line. The content distribution relay method used in the distribution relay device that notifies to the mobile station, the radio wave intensity registration unit is notified from the radio base station, the terminal identification information and radio wave intensity related to the mobile terminal and the base station identification information of the radio base station, The radio wave intensity registration step of registering the radio wave intensity information consisting of the pair in the storage unit, and the terminal identification information and the radio of the mobile terminal included in the HTTP request from the mobile terminal received by the distribution determination unit via the radio base station Based on the base station identification information of the base station, the radio wave intensity corresponding to the terminal identification information and the base station identification information is obtained from the storage unit and obtained. A distribution determination step for determining whether or not related content can be distributed by comparing the received signal strength with a preset reference strength, and when the distribution determination unit determines that the distribution determination unit determines that the related content can be distributed. A distribution relay step of notifying the content distribution device of a distribution request for distributing the related content to the mobile terminal and transferring the related content distributed from the content distribution device to the mobile terminal via the wireless base station. I have.
Another content distribution system according to the present invention distributes a wireless base station, a portable terminal connected to the wireless base station, and related content associated with the wireless base station to the portable terminal. A content distribution system including a distribution relay device, the base station identification information of the radio base station, information about reference radio wave intensity, and storage means for storing a set of content identification information, from the radio base station, Receiving means for receiving base station identification information of the radio base station and information on the radio field intensity of the mobile terminal detected by the radio base station; information on the radio field intensity received at the radio base station; and the radio The content identification information is extracted based on the information on the reference radio wave intensity stored in association with the base station identification information of the base station. And, a, and distribution determining means for identifying the relevant content to be distributed to the portable terminal.
Another distribution relay device according to the present invention is a distribution relay device that distributes related content associated with a radio base station to a mobile terminal connected to the radio base station, wherein the radio base station A storage unit that stores a set of base station identification information, information on reference radio wave intensity, and content identification information; and from the radio base station, the base station identification information of the radio base station and the radio base station detected by the radio base station The reference unit stored in association with the interface unit for receiving information on the radio field strength of the mobile terminal, the received information on the radio field strength at the radio base station, and the base station identification information of the radio base station A content determination unit that extracts the content identification information based on information on radio wave intensity and identifies related content to be distributed to the mobile terminal; Eteiru.
At this time, the storage unit may store a plurality of sets of reference radio wave intensity and content identification information for one base station identification information.
Another content distribution relay method according to the present invention is a content distribution relay method used in a distribution relay device for distributing related content associated with a radio base station to a mobile terminal connected to the radio base station. A storage unit storing a set of base station identification information of the radio base station, information on reference radio wave intensity, and content identification information; and an interface unit from the radio base station to the radio base station A reception step of receiving base station identification information of a station and information on the radio field intensity of the mobile terminal detected by the radio base station, and a distribution determination unit, the received information on the radio field intensity in the radio base station, , Based on the reference radio wave intensity information stored in association with the base station identification information of the radio base station Extracting content identification information, and a distribution determination step of identifying the relevant content to be distributed to the portable terminal.
The program according to the present invention is a program for causing a computer to function as each unit constituting the above-described distribution relay device.

  According to the present invention, even if the wireless base station is designed to form a communication area of a certain size, the mobile terminal T exists in an area narrower than the communication area centered on the wireless base station. Can be accurately identified. Therefore, even in a relatively narrow area provided indoors or the like, it is possible to distribute contents corresponding to the area where the mobile terminal exists by distinguishing each area. In addition, it is possible to deliver related content triggered by a user's intuitive operation such as bringing a mobile terminal close to a radio base station, and for example, a general function that does not have a dedicated function such as near field communication High operability can be obtained even with a simple portable terminal.

It is a block diagram which shows the structure of the content delivery system concerning 1st Embodiment. It is a structural example of radio wave intensity information. It is explanatory drawing which shows the structure of a content storage part. It is a sequence diagram which shows operation | movement of a content delivery system. It is an example of composition of user information DB. It is an example of composition of action history DB. It is a sequence diagram which shows operation | movement of the content delivery system concerning 4th Embodiment.

Next, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
First, a content distribution system according to a first embodiment of the present invention will be described with reference to FIG. FIG. 1 is a block diagram illustrating a configuration of a content distribution system according to the first embodiment.

  The content distribution system 1 is a communication system that distributes content to a mobile terminal T via a wireless line. As a main configuration, the content distribution system 1 includes a plurality of wireless base stations 20 that connect the mobile terminal T via a wireless line, A content distribution device 30 that selects arbitrary content from the stored content and distributes it to the mobile terminal T, and a distribution request for distributing related content associated with the radio base station 20 to the mobile terminal T Is distributed to the content distribution device 30. In the present embodiment, the case where the distribution relay device 10 and the content distribution device 30 are realized by separate devices will be described as an example, but these may be realized by one device.

  The mobile terminal T is a general mobile terminal such as a mobile phone or a PDA. The mobile terminal T has a function of connecting to the radio base station 20 through a radio line using a radio communication protocol such as a wireless LAN, and a radio line with the radio base station 20. By performing data communication via the Internet, it has a browser function for accessing the WEB screen and displaying various contents on the screen.

  The wireless base station 20 includes a general wireless access point, and has a function of connecting to the mobile terminal T through a wireless line using a wireless communication protocol such as a wireless LAN, a function of performing data communication with the distribution relay device 10, and a mobile phone. A function of relaying data communication between the terminal T and the distribution relay device 10; Further, the radio base station 20 detects the radio field strength such as the received electric field strength of the mobile terminal T connected by the mobile station T, and for example, the base station ID of the mobile station T and the terminal of the mobile terminal T in a cycle of about 500 ms. It has a function of notifying the distribution relay device 10 of radio wave intensity information including ID and further detection date and time.

  In the present embodiment, in the distribution relay device 10, the radio field strength information including a set of terminal identification information and radio field intensity related to the mobile terminal T and base station identification information of the radio base station 20 notified from the radio base station 20 is obtained. Based on the terminal identification information of the portable terminal T and the base station identification information of the wireless base station 20 included in the HTTP request from the portable terminal T registered in the storage unit 13 and received via the wireless base station 20, these terminals The radio wave intensity corresponding to the identification information and the base station identification information is acquired from the storage unit, and it is determined whether or not the related content can be distributed by comparing the obtained radio wave intensity with a preset reference intensity. It is.

  When it is determined that the related content can be distributed, the content distribution device 30 is notified of a distribution request for distributing the related content to the mobile terminal T, and the content distribution device 30 distributes the content from the distribution relay device 10. In response to the request, the related content associated with the radio base station 20 is selected from the stored content and distributed to the distribution relay device 10, and the related content distributed from the content distribution device 30 in the distribution relay device 10 Is transferred to the mobile terminal T via the radio base station 20.

[Distribution Relay Device]
Next, the configuration of the distribution relay device 10 will be described with reference to FIG.
The distribution relay device 10 is composed of a computer having a communication function such as a server device as a whole. As main functional units, a base station interface unit (hereinafter referred to as a base station I / F unit) 11, a radio wave intensity registration unit 12, a storage A section 13, a distribution determination section 14, a network interface section (hereinafter referred to as a network I / F section) 15, a distribution relay section 16, and a WEB processing section 17 are provided.

The base station I / F unit 11 includes a dedicated communication circuit, and has a function of performing various data communications with the radio base station 20 via a communication line.
The network I / F unit 15 includes a dedicated communication circuit, and has a function of performing various data communications with the content distribution apparatus 30 via the communication network 50. These base station I / F unit 11 and network I / F unit 15 may be realized by the same communication circuit.

  The radio wave intensity registration unit 12 is notified from the radio base station 20 via the base station I / F unit 11, the terminal ID (terminal identification information) regarding the mobile terminal T, the radio wave intensity, and the base station ID of the radio base station 20 ( And has a function of registering in the storage unit 13 radio wave intensity information consisting of a pair with (base station identification information).

The storage unit 13 includes a storage device such as a hard disk, and has a function of storing various processing information such as radio wave intensity information.
FIG. 2 is a configuration example of the radio wave intensity information. Here, the base station ID, the terminal ID, the reception intensity, and the date and time when the reception intensity is detected or registered are registered as a set.

  Based on the terminal ID of the mobile terminal T and the base station ID of the radio base station 20 included in the HTTP request from the mobile terminal T received via the radio base station 20, the distribution determination unit 14 A function of acquiring the radio field intensity corresponding to the station ID from the storage unit 13 and a function of determining whether or not the related content can be distributed by comparing the obtained radio field intensity with a reference intensity set in the storage unit 13 in advance. have.

  Usually, the shorter the distance between the mobile terminal T and the radio base station 20, the greater the radio field intensity of the mobile terminal T detected by the radio base station 20. Therefore, when it is confirmed that the radio wave intensity has reached the reference intensity, it can be estimated that the mobile terminal T is present at a position below the distance corresponding to the reference intensity with respect to the radio base station 20. In the present invention, based on such a principle, when the position of the mobile terminal T can be specified, the relevant content, that is, related content corresponding to the radio base station 20 is distributed to the mobile terminal T. is there.

  When the distribution determination unit 14 determines that the related content can be distributed, the distribution relay unit 16 sends a distribution request for distributing the related content to the portable terminal T from the network I / F unit 15 via the communication network 50. A function of notifying the content distribution device 30 and the related content distributed from the content distribution device 30 received by the network I / F unit 15 via the communication network 50 from the base station I / F unit 11 And a function of transferring to the portable terminal T via the base station 20. Note that the content distributed from the content distribution device 30 may be directly distributed from the communication network 50 to the radio base station 20 without using the distribution relay device 10.

  When the WEB processing unit 17 receives a first HTTP request for requesting connection to an arbitrary WEB screen transmitted from the mobile terminal T for the first time after the mobile terminal T is connected to the radio base station 20 via a radio line. The mobile terminal T receives a second HTTP request for requesting connection to the content distribution WEB screen transmitted from the mobile terminal T and a function for transmitting connection switching to the content distribution WEB screen provided in advance to the mobile terminal T. A function for temporarily holding the transmission of an HTTP response to the second HTTP request, and a content distribution WEB screen corresponding to the second HTTP request when the distribution determination unit 14 determines that the related content can be distributed. Is transmitted to the portable terminal T. At this time, the related content distributed from the content distribution device 30 may be transmitted to the mobile terminal T as an HTTP response corresponding to the second HTTP request by the distribution relay unit 16 or the WEB processing unit 17.

  In addition, the distribution relay device 10 includes a portable terminal T such as an IP address assignment function for assigning an IP address to the portable terminal T and a user authentication function for confirming whether or not the wireless connection service can be used for the portable terminal T. Is provided with a function of executing wireless line connection processing. The function is configured using a general known technique.

[Content distribution device]
Next, the configuration of the content distribution device 30 will be described with reference to FIG.
The content distribution device 30 is composed of a computer having a communication function such as a server device as a whole, and a distribution control unit 31 and a content storage unit 32 are provided as main functional units.

  The distribution control unit 31 is associated with the radio base station 20 from the stored content stored in advance in the content storage unit 32 in response to the distribution request notified from the distribution relay device 10 via the communication network 50. And a function of distributing the selected related content to the distribution relay device 10.

The content storage unit 32 includes a storage device such as a hard disk and has a function of storing related content.
FIG. 3 is an explanatory diagram showing the configuration of the content storage unit. Here, corresponding related content is registered for each content identification information. As related content, an HTML-format web page may be used, and not only text data and images but also moving images may be added.

[Operation of First Embodiment]
Next, the operation of the content distribution system according to the present embodiment will be described with reference to FIG. FIG. 4 is a sequence diagram showing the operation of the content distribution system.
Here, a case will be described in which related content is distributed from the content distribution apparatus 30 to the mobile terminal T after the mobile terminal T connects the wireless base station 20 and the wireless line. The portable terminal T and the wireless base station 20 will be described by taking as an example a case where a wireless line is connected using a wireless LAN, and using a base station ID as content identification information for identifying related content.

First, the mobile terminal T receives a beacon from each radio base station 20, and transmits a line connection request to the radio base station 20 having a good radio wave condition (step 100).
The wireless base station 20 exchanges various information such as security information used for wireless LAN communication with the mobile terminal T by executing an association process based on the wireless LAN protocol in response to a line connection request from the mobile terminal T. . At this time, user authentication processing may be executed for the portable terminal T to use the wireless LAN connection service by requesting input of a user ID or password.

After the association processing is completed, the radio base station 20 notifies the distribution relay device 10 of an address request including the terminal MAC address of the portable terminal T in order to give the portable terminal T an IP address (step 101).
In response to this, the distribution relay device 10 generates an IP address unique to the terminal MAC address of the mobile terminal T using the IP address assignment function, and the generated IP address is transmitted to the mobile terminal T via the radio base station 20. (Step 102).

At this time, the distribution relay device 10 registers the set of the terminal MAC address and the IP address in the terminal database of the storage unit 13, and based on the transmission source IP address assigned to the various data transmitted from the mobile terminal T. Used to specify the terminal MAC address of the portable terminal T.
For the IP address assignment function, a DHCP server or an authentication server connected via the communication network 50 may be used.

  After assigning the IP address notified via the radio base station 20 to the mobile terminal T, the mobile terminal T activates the browser function (DNS resolver) and goes to any initial WEB screen set in advance by the browser function. An HTTP request (DNS request) requesting connection is transmitted to the radio base station 20 (step 110).

  The distribution relay device 10 receives an HTTP request from the portable terminal T via the radio base station 20, and this HTTP request is not received from the portable terminal T until the portable terminal T connects to the radio base station via the radio line. In the case of the transmitted first HTTP request, the WEB processing unit 17 displays the content distribution WEB screen provided in advance for the mobile terminal T regardless of the connection destination specified in the first HTTP request. A connection switch (DNS response) is transmitted (step 111).

  At this time, the content distribution WEB screen may be a dedicated WEB screen used only for content distribution or a general portal screen. Further, here, the case where the so-called fake DNS server system is used has been described as an example, but the present invention is not limited to this. For example, in the captive portal system, the content delivery WEB screen is displayed in response to the first HTTP request. You may make it connect forcibly.

  Note that the screen displayed on the browser of the mobile terminal T is switched from the content distribution WEB screen to the related content display screen when related content is distributed, either automatically after a certain time has elapsed from the start of display of this display screen, or In response to a request from the portable terminal T according to a user operation, the content distribution WEB screen or another preset WEB screen may be switched. Thereby, after browsing a related content, it can transfer to a content distribution WEB screen or another WEB screen smoothly. As for this screen switching, the switching WEB screen may be distributed from the distribution relay device 10 to the portable terminal T, or the connection switching may be transmitted to the portable terminal T as in step 111.

  The mobile terminal T receives the connection switching from the distribution relay device 10 via the radio base station 20, and uses the browser function to request a connection to the content distribution WEB screen designated by the connection switching. Is transmitted to the radio base station 20 (step 112).

  When the WEB processing unit 17 of the distribution relay device 10 receives the second HTTP request from the mobile terminal T via the wireless base station 20, the WEB screen for content distribution is transmitted to the wireless base station as an HTTP response to the second HTTP request. The data is transmitted to the station 20 (step 113), and thereafter, empty data not including content is periodically transmitted as an HTTP response (step 114).

  In a general browser function, when an HTTP response to an HTTP request does not reach within a predetermined time and a timeout occurs, an error process is executed and a predetermined error screen is displayed. Therefore, it is possible to avoid execution of error processing in the browser function of the mobile terminal T by periodically transmitting empty data to the mobile terminal T at a cycle shorter than the timeout period while transmission of the HTTP response is suspended.

  On the other hand, after the wireless base station 20 notifies the mobile terminal T of the IP address and completes the connection of the wireless line with the mobile terminal T, the wireless base station 20 starts detecting the radio field intensity of the mobile terminal T, for example, at a cycle of about 500 ms. The base station ID of the local station, the terminal ID (MAC address or IP address) of the mobile terminal T, and the radio wave intensity information including the detection date and time are notified to the distribution relay device 10 (step 120). At this time, the transmission delay of the radio wave intensity information can be reduced by using UDP for the transmission of the radio wave intensity information. The transmission cycle of the radio wave intensity information may be arbitrarily changed from the distribution relay device 10, for example.

  The radio wave intensity registration unit 12 of the distribution relay device 10 stores radio wave intensity information that is notified from the radio base station 20 and includes a terminal ID and radio wave intensity related to the mobile terminal T and the base station ID of the radio base station 20. 13 are sequentially registered (step 121).

  In addition, the distribution determination unit 14 of the distribution relay device 10 determines the reference strength for the radio wave strength related to the mobile terminal T notified from the radio base station 20 while the transmission of the HTTP response to the second HTTP request from the mobile terminal T is suspended. To determine whether or not the related content can be distributed (step 130). Note that the reference strength value may be arbitrarily changed, for example, by the distribution relay device 10, and the size of the area where related content is distributed can be adjusted. Also, a plurality of reference intensity values or ranges may be set, and different related content may be defined for each reference intensity.

  Here, when it is confirmed that the radio field intensity of the portable terminal T has reached the reference intensity (step 130: YES), the distribution relay unit 16 issues a distribution request for distributing the related content to the portable terminal T. The network I / F unit 15 notifies the content distribution apparatus 30 via the communication network 50 (step 131). At this time, the distribution request is given the base station ID of the radio base station 20 to which the mobile terminal T is connected as content identification information for specifying the related content.

  As the content identification information, in addition to the base station ID, a location ID including position information such as an installation position of the radio base station 20, an installation position of an antenna connected to the radio base station 20, and an installation position of the distribution relay device 10 May be used. In addition, for each combination of the terminal ID of the mobile terminal T and the position information, a server assigned ID that is uniquely determined in advance may be used. By using these location IDs and server assignment IDs, the actual address information assigned to the radio base station 20 and the portable terminal T can be concealed, and high security can be obtained.

The distribution control unit 31 of the content distribution device 30 responds to the distribution request from the stored contents stored in advance in the content storage unit 32 in response to the distribution request notified from the distribution relay device 10 via the communication network 50. The content identification information included, here, the related content associated with the base station ID is selected (step 132).
Thereafter, the distribution control unit 31 distributes the selected related content to the distribution relay device 10 via the communication network 50 (step 133).

The distribution relay unit 16 of the distribution relay device 10 receives the related content distributed from the content distribution device 30 received by the network I / F unit 15 via the communication network 50 from the base station I / F unit 11. The data is transferred to the mobile terminal T via the base station 20 (step 134).
In response to this, the browser function of the mobile terminal T receives the related content via the radio base station 20, and displays the related content on the screen. Thereby, on the screen of the portable terminal T, the related content related to the position where the own terminal exists is displayed.

  Normally, in order to distribute content using the browser function of the mobile terminal T, an HTTP request from the browser function is required, and new content cannot be distributed at a timing when there is no HTTP request. Therefore, a part or all of the content distribution WEB screen that has been displayed by the browser function of the mobile terminal T, such as by sending empty data as an HTTP response to the second HTTP request, is used. And display related content.

[Effect of the first embodiment]
As described above, in the distribution relay device 10, the storage unit stores the terminal identification information related to the mobile terminal T and the radio wave intensity information that is a set of the radio base station 20 and the base station identification information notified from the radio base station 20. 13, based on the terminal identification information of the mobile terminal T and the base station identification information of the radio base station 20 included in the HTTP request from the mobile terminal T received through the radio base station 20. In addition, the radio field intensity corresponding to the base station identification information is acquired from the storage unit 13, and the distribution intensity of the related content is determined by comparing the obtained radio field intensity with a preset reference intensity. is there.

  When it is determined that the related content can be distributed, the content distribution device 30 is notified of a distribution request for distributing the related content to the mobile terminal T, and the content distribution device 30 distributes the content from the distribution relay device 10. In response to the request, the related content associated with the radio base station 20 is selected from the stored content and distributed to the distribution relay device 10, and the related content distributed from the content distribution device 30 in the distribution relay device 10 Is transferred to the mobile terminal T via the radio base station 20.

  Usually, the shorter the distance between the mobile terminal T and the radio base station 20, the greater the radio field intensity of the mobile terminal T detected by the radio base station 20. Therefore, when it is confirmed that the radio wave intensity has reached the reference intensity, it can be estimated that the mobile terminal T is present at a position below the distance corresponding to the reference intensity with respect to the radio base station 20. According to the present invention, when the position of the mobile terminal T can be specified based on such a principle, the position, that is, related content corresponding to the radio base station 20 is distributed to the mobile terminal T.

  Thus, even if the radio base station 20 is designed to form a communication area of a certain size, the mobile terminal T exists in an area narrower than the communication area centered on the radio base station 20. Can be accurately identified. Therefore, even in a relatively narrow area provided indoors or the like, it is possible to distribute content corresponding to the area where the mobile terminal T exists by distinguishing each area. In addition, it is possible to deliver related content triggered by a user's intuitive operation such as bringing the mobile terminal T close to the radio base station 20, and for example, no dedicated function such as short-range wireless communication is installed. High operability can be obtained even with a general portable terminal.

  In the present embodiment, if the communication area of the radio base station 20 is narrowed by using an antenna capable of communication at a short distance as the antenna of the radio base station 20, different contents are provided for each extremely narrow area. Can be delivered. Moreover, even if a plurality of radio base stations 20 are installed adjacent to each other, distribution contents can be distinguished by content identification information such as a base station ID. Can deliver appropriate content.

  In general, in order to explain exhibits at museums and museums, a guide that provides information on the exhibits when the audience comes near the exhibits using short-range wireless communication that allows radio waves to reach only near the exhibits. There is service. However, in such a guidance service, it is necessary to prepare a dedicated receiver and lend it to the audience.

  On the other hand, the content distribution system according to the present invention is applied to such a guidance service, the radio base station 20 is installed for each exhibit, and the relevant content of the base station ID of the radio base station 20 which is content identification information By storing the guide content of the exhibit in the content distribution device 30 in advance, it is possible to provide the guide content related to the exhibit from a widespread mobile terminal.

  Further, the radio base station 20 is installed in any place such as a floor or a passage other than the exhibit, and as the related content of the base station ID of the radio base station 20, the floor guidance content around the location or the exhibit The route guidance content for guiding the viewing route is stored in the content distribution device 30 in advance, so that the guidance content related to the exhibit is distributed near the exhibit, and the floor or It is possible to automatically switch to the route guidance content for distribution, and to provide a high-quality guidance service to the audience.

  Further, the content distribution system of the present invention can be applied not only to art museums and museums but also to merchandise guidance services in stores in the same manner as described above. At this time, the radio base station 20 is installed at a place away from the product, and the route guidance content for guiding the route from the place to the product as related content of the base station ID of the radio base station 20 By accumulating in the content distribution device 30 in advance, the purchaser can be easily guided to the product sales corner. Further, as the related content of the base station ID of the radio base station 20 installed in the product sales corner, not only the guide content of the product but also purchase application content including a screen for applying for purchase of the product is sent to the content distribution apparatus 30. By accumulating in advance, the purchaser can easily purchase the product, which can be used for sales promotion.

  Further, in the present embodiment, when the WEB processing unit 17 of the distribution relay device 10 receives an HTTP request, transmission of an HTTP response to the HTTP request is temporarily suspended, and the distribution determination unit 14 is pending transmission of the HTTP response. The radio field strength related to the mobile terminal T notified from the radio base station 20 is compared with the reference strength to determine whether or not the related content can be distributed, and distributed from the content distribution device in response to the distribution request transmitted from the distribution relay unit. The related content thus made may be transferred as an HTTP response to the portable terminal T via the wireless base station.

  Accordingly, the related content can be provided to the mobile terminal T by using a series of HTTP processing flows in which an HTTP response is returned in response to an HTTP request from the mobile terminal T, and the browser function of the mobile terminal T is used. Related content can be displayed smoothly on the screen.

At this time, the WEB processing unit 17 may distribute empty data that does not include content instead of the HTTP response to the mobile terminal T via the radio base station 20 while the transmission of the HTTP response is pending.
Thereby, even when the error processing at the time of timeout of the HTTP response is set in the browser function of the mobile terminal T, the execution of the error processing can be avoided, and the related content can be distributed by the HTTP response.

  In the present embodiment, the WEB processing unit 17 of the distribution relay device 10 receives the first HTTP request transmitted from the mobile terminal T for the first time after the mobile terminal T is connected to the radio base station 20 via the radio line. When receiving, the mobile terminal T transmits a connection switch to the content distribution WEB screen provided in advance, and the distribution determination unit 14 transmits the second HTTP request transmitted from the mobile terminal T in response to the connection switch. In response to reception, whether or not the related content can be distributed may be determined by comparing the radio wave intensity related to the mobile terminal T and the reference intensity.

  Thereby, after the process for connecting the wireless line between the mobile terminal T and the radio base station 20 is started, the related content is transferred to the mobile terminal T without requiring a user operation for requesting the related content. Can be delivered automatically. Therefore, when related content is distributed, the operation burden on the user can be greatly reduced, and extremely high operability can be obtained.

  Moreover, although the case where one reference strength is used has been described as an example in the present embodiment, the distribution determination unit 14 may compare and determine the radio field strength of the mobile terminal T using a plurality of reference strengths. Good. Thereby, a plurality of areas around the radio base station 20 can be set in a ring shape. Accordingly, the distribution relay unit 16 includes the comparison result in the distribution request and notifies the content distribution device 30 and classifies the related content in the content storage unit 32 according to the comparison result, thereby distributing the distribution control unit. In 31, the optimum related content corresponding to each area can be selected and distributed to the mobile terminal T.

[Second Embodiment]
Next, a content distribution system 1 according to a second embodiment of the present invention will be described.
In the content distribution system 1 according to the present embodiment, a user information database (hereinafter referred to as a user information DB) is provided in the content distribution device 30, and personal information about the user is registered in advance, and the distribution control unit When the related content is selected at 31, the related content is selected in consideration of personal information.

  FIG. 5 is a configuration example of the user information DB. Here, user information consisting of a set of the terminal ID of the mobile terminal T and the personal information of the user who uses the mobile terminal T is registered. At this time, the terminal ID may be notified from the distribution relay device 10 by a distribution request. As personal information, information such as sex, age, hobbies, and preferences acquired in advance through a questionnaire or the like may be used. In addition, in order to identify the portable terminal T, you may use Cookie used by the browser function.

For the stored content, the degree of conformity and pass / fail may be registered in the same classification as personal information.
Thereby, when selecting the related content in the distribution control unit 31, the content that matches the sex, age, hobby, and preference of the user of the mobile terminal T is selected as the related content among the content related to the same base station ID. It is possible to distribute useful content that the user is interested in.

[Third Embodiment]
Next, a content distribution system 1 according to a third embodiment of the present invention will be described.
In the content distribution system 1 according to the present embodiment, an action history database (hereinafter referred to as an action history DB) is provided in the content distribution apparatus 30 to manage user action history information.

  FIG. 6 is a configuration example of the action history DB. Here, content identification information including a terminal ID of the mobile terminal T, a base station ID of a wireless base station, and action history information including a set of content distribution dates and times are registered. At this time, the terminal ID may be notified by the distribution request from the distribution relay device 10, and the base station ID may be the one notified by the distribution request.

  Thereby, since the user's position is specified by the content identification information, the history of movement of the user is confirmed in time series by searching and collecting the action history DB by the distribution control unit 31 of the content distribution device 30. The operator who operates the content distribution system 1 can obtain useful information about the user. In particular, when the content distribution system 1 is applied as a store product guide service, it is possible to easily grasp a purchaser's behavior (flow line) pattern and products of interest, which can be used for sales promotion.

[Fourth Embodiment]
Next, with reference to FIG. 7, the content delivery system 1 concerning the 4th Embodiment of this invention is demonstrated. FIG. 7 is a sequence diagram illustrating an operation of the content distribution system according to the fourth embodiment.
In the first exemplary embodiment, the case where the distribution relay device 10 directly notifies the content distribution device 30 of a related content distribution request has been described as an example. In the present embodiment, a case where the distribution request is notified from the portable terminal T to the content distribution device 30 will be described.

  In the content distribution system 1 according to the present embodiment, the distribution relay unit 16 issues a distribution request for distributing the related content to the mobile terminal T when the distribution determination unit 14 determines that the related content can be distributed. In order to notify the content distribution apparatus 30 from the mobile terminal T, the mobile terminal T has a function of instructing the mobile terminal T and a function of relaying a distribution request received from the mobile terminal T and notifying the content distribution apparatus.

  Therefore, in step 130 of FIG. 7, when the distribution determination unit 14 of the distribution relay device 10 confirms that the radio field intensity of the mobile terminal T has reached the reference strength (step 130: YES), the distribution relay unit 16 Uses a distribution request including content identification information for specifying related content and a connection request to the content distribution device 30 related content distribution web screen set in advance as an HTTP response to the second HTTP request. The mobile terminal T is notified via the radio base station 20 (step 140).

The mobile terminal T receives the distribution request from the distribution relay device 10 via the radio base station 20, and uses a browser function to indicate a third HTTP request indicating redirection to the related content distribution WEB screen specified in the distribution request. (Step 141), and transmits the third HTTP request to the radio base station 20 (step 142).
The distribution relay unit 16 of the distribution relay device 10 transfers the third HTTP request received from the mobile terminal T via the radio base station 20 from the network I / F unit 15 to the content distribution device 30 via the communication network 50. (Step 143).

The distribution control unit 31 of the content distribution device 30 is stored in advance in the content storage unit 32 according to the third HTTP request transmitted from the mobile terminal T via the communication network 50 and transferred by the distribution relay device 10. From the stored content, the content identification information included in the distribution request, here, the related content associated with the base station ID is selected (step 144).
Thereafter, the distribution control unit 31 distributes the selected related content to the distribution relay device 10 via the communication network 50 as a third HTTP response to the third HTTP request (step 145).

The distribution relay unit 16 of the distribution relay device 10 receives the third HTTP response distributed from the content distribution device 30 received by the network I / F unit 15 via the communication network 50 from the base station I / F unit 11. The data is transferred to the mobile terminal T via the corresponding radio base station 20 (step 146).
In response to this, the browser function of the mobile terminal T receives the third HTTP response via the radio base station 20, and displays the related content included in the third HTTP response on the screen. Thereby, on the screen of the portable terminal T, the related content related to the position where the own terminal exists is displayed.

  As a result, a related content distribution request can be transmitted to the content distribution device 30 as an HTTP request from the mobile terminal T, and the content distribution device 30 in the distribution relay device 10 as compared with the first embodiment. As a result, it is possible to omit processing after transmission of the distribution request to the mobile terminal T, for example, processing of distributing the related content received from the content distribution device 30 to the portable terminal T as the second HTTP response to the second HTTP request. The processing load on the distribution relay device 10 can be reduced.

[Extended embodiment]
The present invention has been described above with reference to the embodiments, but the present invention is not limited to the above embodiments. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  DESCRIPTION OF SYMBOLS 1 ... Content delivery system, 10 ... Delivery relay apparatus, 11 ... Base station I / F part, 12 ... Radio wave intensity registration part, 13 ... Memory | storage part, 14 ... Delivery determination part, 15 ... Network I / F part, 16 ... Delivery Relay unit, 17 ... WEB processing unit, 20 ... wireless base station, 30 ... content distribution device, 31 ... distribution control unit, 32 ... content storage unit, 50 ... communication network, T ... mobile terminal.

Claims (17)

A plurality of wireless base stations that connect mobile terminals via wireless lines;
A content distribution device that selects and distributes arbitrary content from stored content stored in advance to the mobile terminal;
A distribution relay device for notifying the content distribution device of a distribution request for distributing related content associated with the radio base station to the mobile terminal;
The delivery relay device
A radio wave intensity registration unit that registers radio wave intensity information, which is a set of terminal identification information and radio wave intensity related to the mobile terminal and base station identification information of the radio base station, in a storage unit, notified from the radio base station;
Based on the terminal identification information of the portable terminal and the base station identification information of the wireless base station included in the HTTP request from the portable terminal received via the wireless base station, the terminal identification information and the base station identification information A distribution determination unit that determines whether the related content can be distributed by comparing the obtained radio field intensity with a reference strength set in advance,
When the distribution determination unit determines that the related content can be distributed, the distribution server notifies the content distribution device of a distribution request for distributing the related content to the mobile terminal, and is distributed from the content distribution device. A distribution relay unit that transfers the related content to the mobile terminal via the wireless base station,
In response to the distribution request from the distribution relay device, the content distribution device selects related content associated with the radio base station from the stored content and distributes the content to the distribution relay device Content distribution system characterized by including a part. The content distribution system according to claim 1,
The delivery relay device further includes a WEB processing unit that temporarily suspends transmission of an HTTP response to the HTTP request when the HTTP request is received;
The distribution determination unit determines whether or not the related content can be distributed by comparing the radio wave intensity related to the mobile terminal notified from the radio base station during transmission suspension of the HTTP response with the reference intensity, The content distribution system, wherein the related content distributed from the content distribution device in response to a distribution request is transferred to the portable terminal via the wireless base station as the HTTP response. The content distribution system according to claim 2,
The content distribution system, wherein the WEB processing unit distributes empty data that does not include content instead of the HTTP response to the mobile terminal via the wireless base station, while pending transmission of an HTTP response. The content distribution system according to claim 1,
The distribution relay device is provided in advance for the portable terminal when the portable terminal receives the first HTTP request transmitted from the portable terminal for the first time after the portable terminal is connected to the wireless base station via the wireless line. A WEB processing unit that transmits connection switching to the content distribution WEB screen;
The distribution determination unit compares the radio wave intensity related to the portable terminal with the reference intensity in response to reception of a second HTTP request transmitted from the portable terminal in response to the connection switching. A content distribution system characterized by determining whether or not distribution is possible. The content distribution system according to claim 1,
The distribution relay unit notifies the content distribution device of a distribution request for distributing the related content to the mobile terminal when the distribution determination unit determines that the related content can be distributed. In order to do so, the content distribution system is characterized by instructing the portable terminal to relay the distribution request received from the portable terminal and notifying the content distribution apparatus. A distribution relay device that notifies a content distribution device of a distribution request for distributing related content associated with a wireless base station to a mobile terminal connected to the wireless base station via a wireless line,
A radio wave intensity registration unit that registers radio wave intensity information, which is a set of terminal identification information and radio wave intensity related to the mobile terminal and base station identification information of the radio base station, in a storage unit, notified from the radio base station;
Based on the terminal identification information of the portable terminal and the base station identification information of the wireless base station included in the HTTP request from the portable terminal received via the wireless base station, the terminal identification information and the base station identification information A distribution determination unit that determines whether the related content can be distributed by comparing the obtained radio field intensity with a reference strength set in advance,
When the distribution determination unit determines that the related content can be distributed, the distribution server notifies the content distribution device of a distribution request for distributing the related content to the mobile terminal, and is distributed from the content distribution device. A distribution relay unit configured to transfer the related content to the mobile terminal via the wireless base station. A plurality of wireless base stations that connect the mobile terminal via a wireless line; a content distribution device that selects and distributes arbitrary content from stored content stored in advance to the mobile terminal; and the wireless base station A content distribution method used in a content distribution system including a distribution relay device for notifying the content distribution device of a distribution request for distributing related content to the mobile terminal,
The radio wave intensity registration unit of the distribution relay device stores the radio wave intensity information that is notified from the radio base station and includes a set of terminal identification information and radio wave intensity regarding the mobile terminal and base station identification information of the radio base station. Radio wave intensity registration step to be registered in the department,
Based on the terminal identification information of the portable terminal and the base station identification information of the wireless base station included in the HTTP request from the portable terminal received by the distribution determination unit of the distribution relay device. The radio wave intensity corresponding to the terminal identification information and the base station identification information is acquired from the storage unit, and it is determined whether or not the related content can be distributed by comparing the obtained radio wave intensity with a preset reference intensity. A delivery determination step,
When the distribution relay unit of the distribution relay device determines that the related content can be distributed in the distribution determination step, the distribution relay unit notifies the content distribution device of a distribution request for distributing the related content to the mobile terminal. And a distribution relay step of transferring the related content distributed from the content distribution device to the mobile terminal via the wireless base station;
In response to the distribution request from the distribution relay device, the distribution control unit of the content distribution device selects related content associated with the radio base station from the stored content, and sends the related content to the distribution relay device. A content distribution method comprising: a distribution control step for distribution. The content distribution method according to claim 7,
When the WEB processing unit of the delivery relay device receives the HTTP request, the WEB processing unit further includes a WEB processing step for temporarily suspending transmission of an HTTP response to the HTTP request,
The distribution determination step determines whether or not the related content can be distributed by comparing the radio wave intensity related to the mobile terminal notified from the radio base station during transmission suspension of the HTTP response with the reference intensity, The content distribution method, wherein the related content distributed from the content distribution device in response to the distribution request is transferred to the portable terminal via the wireless base station as the HTTP response. The content distribution method according to claim 8, wherein
In the content delivery method, the WEB processing step delivers empty data that does not include content in place of the HTTP response to the mobile terminal via the wireless base station, while pending transmission of the HTTP response. The content distribution method according to claim 7,
When the WEB processing unit of the distribution relay device receives the first HTTP request transmitted from the mobile terminal for the first time after the mobile terminal is connected to the wireless base station via the wireless line, A WEB processing step for transmitting connection switching to a content distribution WEB screen provided in advance;
In the delivery determination step, the related content is compared by comparing the radio wave intensity related to the mobile terminal and the reference intensity in response to reception of a second HTTP request transmitted from the mobile terminal in response to the connection switching. A content distribution method characterized by determining whether or not distribution is possible. The content distribution method according to claim 7,
The distribution relay step notifies the content distribution device of a distribution request for distributing the related content to the portable terminal when the distribution determining step determines that the related content can be distributed. In order to do so, the content distribution method is characterized by instructing the portable terminal, relaying the distribution request received from the portable terminal, and notifying the content distribution apparatus. Content distribution relay used in a distribution relay device for notifying a content distribution device of a distribution request for distributing related content associated with the wireless base station to a mobile terminal connected to the wireless base station via a wireless line A method,
A radio wave strength registration unit, which is notified from the radio base station, registers radio wave strength information consisting of a set of terminal identification information about the mobile terminal and radio wave strength and base station identification information of the radio base station in a storage unit. Strength registration step;
Based on the terminal identification information of the portable terminal and the base station identification information of the wireless base station included in the HTTP request from the portable terminal received by the distribution determination unit via the wireless base station, the terminal identification information A distribution determination step of acquiring radio wave intensity corresponding to the base station identification information from the storage unit and determining whether the related content can be distributed by comparing the obtained radio wave intensity with a preset reference intensity; ,
If the distribution relay unit determines that the related content can be distributed by the distribution determination unit, the distribution relay unit notifies the content distribution device of a distribution request for distributing the related content to the mobile terminal, and the content A content distribution relay method comprising: a distribution relay step of transferring the related content distributed from a distribution device to the mobile terminal via the wireless base station. A radio base station;
A mobile terminal connected to the radio base station;
A delivery relay device for delivering related content associated with the wireless base station to the mobile terminal;
A content distribution system including:
Storage means for storing a set of base station identification information of the wireless base station, information on reference radio wave intensity, and content identification information;
Receiving means for receiving, from the radio base station, base station identification information of the radio base station and information on the radio field intensity of the mobile terminal detected by the radio base station;
The content identification information is extracted based on the received information on the radio field strength in the radio base station and the information on the reference radio field strength stored in association with the base station identification information of the radio base station. , Delivery determination means for specifying related content to be delivered to the mobile terminal;
A content distribution system comprising: A distribution relay device that distributes related content associated with a radio base station to a mobile terminal connected to the radio base station,
A storage unit for storing a set of base station identification information of the wireless base station, information on reference radio wave intensity, and content identification information;
An interface unit for receiving, from the radio base station, base station identification information of the radio base station and information on the radio field intensity of the mobile terminal detected by the radio base station;
The content identification information is extracted based on the received information on the radio field strength in the radio base station and the information on the reference radio field strength stored in association with the base station identification information of the radio base station. , A delivery determination unit that identifies related content to be delivered to the mobile terminal;
A distribution relay device comprising: The delivery relay device according to claim 14,
The storage unit stores a plurality of sets of reference radio wave intensity and content identification information for one base station identification information. A content distribution relay method used in a distribution relay device for distributing related content associated with a radio base station to a mobile terminal connected to the radio base station,
A storage step in which a storage unit stores a set of base station identification information of the wireless base station, information on reference radio wave intensity, and content identification information;
A receiving step in which the interface unit receives, from the radio base station, base station identification information of the radio base station and information on the radio field intensity of the mobile terminal detected by the radio base station;
The content is determined based on the received information on the radio field strength at the radio base station and the information on the reference radio field strength stored in association with the base station identification information of the radio base station. A delivery determination step of extracting identification information and specifying related content to be delivered to the mobile terminal;
A content delivery relay method comprising: The program for functioning a computer as each part which comprises the delivery relay apparatus of Claim 6 or Claim 14.

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