JP4937794B2 - Load distribution system, cooperative service providing apparatus, information sharing storage apparatus, load distribution method, and load distribution program - Google Patents

Description

  The present invention mainly relates to a load distribution system, a cooperative service providing device, an information sharing storage device, a load distribution method, and a load distribution program.

  Conventionally, in a system as shown in FIG. 6, WebAS (application servers) 21 and 22 which are Web service providing systems connected to the information network 2 receive presence information from a terminal 11 such as a mobile phone terminal connected to the communication network 1. In the case of acquisition, presence information is acquired by the processing procedure shown in FIG.

FIG. 6 is a conceptual diagram of a conventional system. Here, the WebAS 21 connected to the information network 2 has an APL (application) 211. Similarly, the WebAS 22 connected to the information network 2 has an APL 221.
Here, the arrows in FIG. 6 indicate the information flow as a conceptual diagram when the WebAS 21 and WebAS 22 connected to the information network 2 transmit the presence information use request signal of the terminal 11 connected to the communication network 1.

  The APL 211 of the WebAS 21 transmits the presence information usage request signal of the terminal 11 via the GW (gateway) 53, and the APL 221 of the WebAS 22 transmits the presence information usage request signal of the terminal 11 via the GW 54. Therefore, traffic corresponding to the usage request signals of both the WebAS 21 and the WebAS 22 flows through the communication network 1. When a plurality of GW devices are installed, generally a load balancer or the like is used, and one address is disclosed.

FIG. 7 is a drawing showing an operation flow for acquiring presence information in the system of FIG.
The APL 211 outputs a message “subscribePresence” to the GW 53 as a presence information request signal including identification information of the terminal 11 from which presence information is to be acquired (step S1). When the GW 53 receives the presence information request signal, the GW 53 transmits a message “notifySubscription” indicating that the presence information request signal has been received to the APL 211 (step S2). Further, the GW 53 transmits a message “SUBSCRIBE” requesting presence information to the terminal 11 (step S3).

In response to the message “notifySubscription” received in step S2, the APL 211 transmits a message “startPresenceNotification” indicating the presence information reception standby state to the GW 53 (step S4).
In response to the received message “SUBSCRIBE” requesting presence information, the terminal 11 reads the presence information stored in the internal storage area of the terminal 11 and transmits a message “NOTIFY” including the read presence information to the GW 53 ( Step S5).
The GW 53 transmits a message “statusChanged” including presence information included in the received message “NOTIFY” to the APL 211 (step S6).

  When the APL 221 of the WebAS 22 transmits a presence information request signal, the APL 221 outputs a message “subscribePresence” to the GW 54 as a presence information request signal including identification information of the terminal 11 that is the presence information acquisition target (Step S7). Upon receiving the presence information request signal, the GW 54 transmits a message “notifySubscription” indicating that the presence information request signal has been received to the APL 221 (step S8). Further, the GW 54 transmits a message “SUBSCRIBE” requesting presence information to the terminal 11 (step S9).

In response to the message “notifySubscription” received in step S8, the APL 221 transmits a message “startPresenceNotification” indicating the presence information reception standby state to the GW 54 (step S10).
The terminal 11 reads the presence information stored in the internal storage area by the terminal 11 in response to the received message “SUBSCRIBE” requesting presence information, and transmits a message “NOTIFY” including the read presence information to the GW 54 ( Step S11).
The GW 54 transmits a message “statusChanged” including presence information included in the received message “NOTIFY” to the APL 221 (step S12).

Next, after the processing of steps S1 to S12 described above, that is, when APL 211 and APL 221 are in a presence information reception standby state, transmission / reception of presence information when presence changes in terminal 11 will be described.
Until the end signal for the presence information request signal is input, the terminal 11 sends a message “NOTIFY” including presence information indicating that the presence has changed according to the presence change based on the presence information request signal. It transmits to GW54 and GW53 which are the transmission origins of an information request signal.

In the terminal 11, presence change is detected by presence change detection means for detecting presence change provided in advance in the terminal 11, and stored in a storage area inside the terminal 11 (step S13). The terminal 11 reads the presence information stored in the storage area inside the terminal 11, and transmits a message “NOTIFY” including the read presence information to the GW 53 (step S14).
The GW 53 transmits a message “statusChanged” including presence information included in the received message “NOTIFY” to the APL 211 (step S15).

The terminal 11 reads the presence information stored in the storage area inside the terminal 11, and transmits a message “NOTIFY” including the read presence information to the GW 54 (step S16).
The GW 54 transmits a message “statusChanged” including presence information included in the received message “NOTIFY” to the APL 221 (step S17).

  By performing the process of FIG. 7 described above, the terminal 11 transmits presence information to the WebAS 21 and the WebAS 22 as indicated by the arrows indicating the flow of information in FIG. Therefore, traffic of presence information increases, that is, response information that is the same presence information is transmitted / received according to the number of devices that are the transmission source of the presence information utilization request signal, and traffic of the entire network increases. There's a problem.

On the other hand, in recent years, as a technique for reducing traffic related to presence information, for example, the Common Notify method shown in Non-Patent Document 1 has been proposed. The Common Notify method shown in Non-Patent Document 1 shares a resource list server (RLS) when a watcher, which is a large number of presence information users, requests presence information to the same terminal through a single service providing apparatus. This is a technique for reducing traffic of presence information requests by aggregating messages “NOTIFY”.
Markus Isomaki, Presence Traffic Optimization Techniques, [online], October 2006, [February 22, 2007 search], Internet <http: //mice.cs. columbia.edu/getTechreport.php?techreportID=426>

  However, since the Common Notify method of Non-Patent Document 1 assumes only a case where there are a plurality of presence information usage requests to the same terminal for a single cooperative service providing apparatus, there are a plurality of cooperative service providing apparatuses. In this case, there is a problem that the traffic of the communication network 1 is not reduced.

  The present invention has been made in view of such circumstances and has been made to solve the above-described problems. The object of the present invention is to provide a load distribution system, a cooperative service providing device, an information sharing storage capable of reducing the presence information traffic. An apparatus, a load distribution method, and a load distribution program are provided.

  In order to solve the above problems, the present invention provides a communication network, an information network, a terminal device connected to the communication network to provide information, a web service providing device connected to the information network, a communication network, and an information network. A load distribution system including two or more cooperative service providing devices that cooperate with each other, comprising an information sharing storage device that stores information usage status information of information included in the terminal device, and the cooperative service providing device Includes an information use request signal receiving unit that receives an information use request signal including identification information of an information use target terminal device, and the information use request signal received by the information use request signal receiving unit. Based on the identification information, information usage status information of the information usage target terminal device is obtained from the information shared storage device. A status determination unit that determines whether the information of the information usage target terminal device is being used by another cooperative service providing device; and the status determination unit determines whether the information of the information usage target terminal device is the other Information transmission request signal transmitting means for transmitting an information transmission request signal to the information utilization target terminal device, and information received from the information utilization target terminal device when the information is received by the cooperative service providing device. Information transmitting means for transmitting to the web service providing apparatus that is the transmission source of the information use request signal as a response to the use request signal, and the situation determining means that the information on the information use target terminal apparatus is sent by the other cooperative service providing apparatus If it is determined that the information use request signal is being used, the information transmission aggregation request signal including the information use request signal is sent to the other cooperative service providing device. Aggregation request signal transmitting means for transmitting and transmitting information on the information usage target terminal device to the web service providing device, and information usage status writing information usage status information corresponding to the information usage request signal in the information shared storage device An information writing unit is provided.

  Further, according to the present invention, the cooperative service providing apparatus receives the first web service providing apparatus that is the transmission source of the first information use request signal received by the self apparatus, and the information transmission aggregation received from another cooperative service providing apparatus. An information transmission aggregating means for transmitting a response from the information utilization target terminal device to the second web service providing device that is a transmission source of the second information utilization request signal included in the request signal, To do.

  Further, the present invention responds to the information use request when the cooperation service providing device receives the information use end request signal for the information use request signal from the web service providing device that is the transmission source of the information use request signal. The information usage status information deleting means for deleting the information usage status information of the information usage target terminal device from the information shared storage device is further provided.

  Further, the present invention provides a communication network, an information network, a terminal device connected to the communication network, a web service providing device connected to the information network, and two or more linked services that link services of the communication network and the information network. An information use request that includes a providing device and an information sharing storage device that stores information use status information of information held by the terminal device in a load balancing system, and includes identification information of the information use target terminal device Information usage request signal receiving means for receiving a signal, and information usage target from the information shared storage device based on identification information of the information usage target terminal device of the information usage request signal received by the information usage request signal receiving means Reads information usage status information of the terminal device, and information on the information usage target terminal device Status determination means for determining whether or not another cooperative service providing device is using the information; and the status determination means determines that the information on the information use target terminal device is not being used by the other cooperative service providing device. In this case, an information transmission request signal transmitting means for transmitting an information transmission request signal to the information usage target terminal device, and information received from the information usage target terminal device as a response to the information usage request signal, When the information transmitting means for transmitting to the web service providing apparatus as the transmission source and the situation determining means determine that the information of the information use target terminal apparatus is being used by the other cooperative service providing apparatus, the information use An information transmission aggregation request signal including a request signal is transmitted to the other cooperative service providing device, and information on the information usage target terminal device is obtained. An aggregation request signal transmitting means for causing the web service providing apparatus to transmit; and an information usage status information writing means for writing information usage status information corresponding to the information usage request signal in the information shared storage device. .

  Further, the present invention provides a communication network, an information network, a terminal device connected to the communication network, a web service providing device connected to the information network, and two or more linked services that link services of the communication network and the information network. An information sharing storage device used in a load balancing system including a providing device, wherein the cooperative service providing device uses the terminal device identification information and the information about the terminal device as information usage status information for the terminal device. The information use end request for the information use request signal is stored in association with the identification information of the source of the use request signal and the identification information of the cooperation service providing apparatus that executes the service corresponding to the information use request signal as the cooperation service. The cooperative service providing device that receives the signal Information usage information to the information use request signal, characterized in that it is deleted.

  The present invention also links a communication network, an information network, a terminal device connected to the communication network and providing information, a web service providing device connected to the information network, and services of the communication network and the information network. A load balancing method in a load balancing system comprising two or more linked service providing devices and an information sharing storage device that stores information usage status information of the terminal device information, wherein the linked service providing device uses information usage The information use request signal including the identification information of the target terminal device is received, and the information use target terminal device information from the information shared storage device based on the identification information of the information use target terminal device of the received information use request signal Read usage status information, and information on the information usage target terminal device is transferred to another cooperative service providing device. In the situation determination step, when it is determined that the information of the information usage target terminal device is not being used by the other cooperative service providing device, the information usage target terminal Transmitting an information transmission request signal to a device, transmitting information received from the information utilization target terminal device to the web service providing device that is the transmission source of the information utilization request signal as a response to the information utilization request signal, and determining the situation In the step, if it is determined that the information of the information usage target terminal device is being used by the other cooperative service providing device, an information transmission aggregation request signal including the information usage request signal is sent to the other cooperative service providing device. To transmit the information of the information usage target terminal device to the web service providing device, and corresponds to the information usage request signal The that information usage information and writes the information shared storage device.

  The present invention also links a communication network, an information network, a terminal device connected to the communication network and providing information, a web service providing device connected to the information network, and services of the communication network and the information network. An information use target terminal device in a computer used for the cooperation service providing device in a load distribution system including two or more cooperative service providing devices and an information sharing storage device that stores information usage status information of the information of the terminal device An information use request signal receiving step for receiving an information use request signal including identification information of the information, and the information use target from the information shared storage device based on the identification information of the information use target terminal device of the received information use request signal Read information usage status information of the terminal device, and the information usage target terminal device In the situation determination step for determining whether or not the information is being used by another cooperative service providing device, and in the situation determination step, the information on the information use target terminal device is being used by the other cooperative service providing device. If it is determined that there is no information, the information transmission request signal is transmitted to the information utilization target terminal device, and the information received from the information utilization target terminal device is transmitted as the response to the information utilization request signal. When it is determined in the information transmission step to be transmitted to the web service providing device and the situation determining step that the information on the information usage target terminal device is being used by the other cooperative service providing device, the information use request signal is Including the information transmission aggregation request signal to the other cooperative service providing device, An aggregation request signal transmitting step for transmitting the information to the web service providing device, and an information usage status information writing step for writing information usage status information corresponding to the information usage request signal to the information shared storage device. Is a load balancing program characterized by

According to the present invention, a communication network, an information network, a terminal device connected to the communication network and providing information, a web service providing device connected to the information network, and a service of the communication network and the information network are linked. A load distribution system including two or more cooperative service providing devices includes an information sharing storage device that stores information usage status information of information included in the terminal device, and the cooperative service providing device transmits an information usage request signal of the terminal device. Based on the information usage status information read from the information shared storage device and read from the information usage target terminal device based on the received information usage request signal, the information usage request terminal is transmitted to the information usage target terminal device Receive information from the device, and use the received information as a response to the information use request signal. Processing to transmit to the web service providing device that is the source of the transmission, or information transmission aggregation request signal including the information use request signal is transmitted to the other cooperative service providing device, and information on the information use target terminal device is provided to the web service Any one of the processes to be transmitted to the apparatus is performed, and the information utilization status information corresponding to the information utilization request signal is written in the information sharing storage apparatus.
As a result, in the load balancing system, any one cooperation service providing apparatus aggregates a plurality of information use request signals that pass through a plurality of cooperation service providing apparatuses for the same terminal device, and corresponds to a plurality of information use request signals It is possible to reduce the response information traffic in the communication network because only the cooperation service providing device that collects and processes the responses to the information use request signals of the terminal devices via the communication network is processed. effective.

According to the present invention, the cooperative service providing apparatus receives the first web service providing apparatus that is the transmission source of the first information use request signal received by the self apparatus and the information transmission aggregation request received from the other cooperative service providing apparatus. An information transmission aggregating means for transmitting a response from the information utilization target terminal device to the second web service providing device that is the transmission source of the second information utilization request signal included in the signal is further provided.
As a result, the cooperative service providing apparatus can perform processing corresponding to a plurality of information use request signals by aggregating the own apparatus based on the information transmission aggregation request signal received from another cooperative service providing apparatus. effective.

Further, according to the present invention, when the cooperative service providing apparatus of the load balancing system receives the information use end request signal for the information use request signal from the web service providing apparatus that is the transmission source of the information use request signal, It is further provided with information usage status information deletion means for deleting information usage status information of the information usage target terminal device corresponding to the information usage request from the information shared storage device.
Thus, the information sharing storage device has an effect that only the information usage status information that is being used by the web service providing device corresponding to the information usage status information is stored.

Hereinafter, a load distribution system 100 according to an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a schematic block diagram showing a load distribution system 100 according to the present embodiment. The load distribution system 100 includes a terminal 11, cooperation service providing apparatuses 3 and 4, presence information sharing DB (Database) 5, a communication network 1, an information network 2, and WebAS (Web application servers) 21 and 22. Have.

  In FIG. 1, a communication network 1 is a communication network such as a telephone network or a VoIP (Voice over IP) network constructed by an information communication carrier. The information network 2 is an information network representing the Internet where web services are provided. The terminal 11 connected to the communication network 1 is, for example, a telephone device, a VoIP terminal, a computer terminal in which software such as a web browser or a mailer is installed, or a terminal device such as a PC (Personal Computer). In addition, the terminal 11 includes a presence detection device that detects presence inside, and transmits presence information indicating the presence. Here, the presence information is information such as presence status information of a user who uses the terminal 11, for example.

The presence information is not limited to this, and may be, for example, the position of the user acquired by the presence detection device provided in advance in the terminal 11.
The position of the user may be acquired by, for example, providing a GPS (Global Positioning System) device in advance in the terminal 11, and if it is in a building, a passage notification device is provided at the entrance of each room or in the room itself, Each time the terminal 11 passes near the passage notification device, the terminal 11 acquires the position information notified by the passage notification device, and the terminal 11 holds the acquired position information as the final passage position. The position may be specified. Further, the position may be specified by user input.

  WebAS 21 and WebAS 22 are connected to the information network 2. WebAS 21 and WebAS 22 are application servers including APL (application) 211 and APL 221 that provide services, respectively. Here, the service refers to, for example, a web server, a mail server, and a file server operated by a web internet service provider or a company, and various services such as an internet connection, a mail service, and a file server providing service.

The cooperative service providing apparatus 3 and the cooperative service providing apparatus 4 have the same configuration, and provide a cooperative service that links the services provided by the WebASs 21 and 22 of the information network 2 and the services in the communication network 1.
The cooperative service providing apparatus 3 and the cooperative service providing apparatus 4 are connected, and the cooperative service providing apparatus 3 and the cooperative service providing apparatus 4 are connected to the communication network 1, the information network 2, and the presence information sharing DB 5.

FIG. 2 is a diagram illustrating a data configuration example of the presence information sharing DB 5.
The presence information sharing DB 5 associates presence information source terminal IDs, requested user identification information, cooperative service providing device identification information, service start time information, information provision times, latest provision time information, and presence information. The table is stored as presence information usage status information.

  Here, the presence information source terminal ID is identification information of an information transmission source of presence information. The requested user identification information is identification information of the transmission source of the presence information utilization request signal. The cooperative service providing apparatus identification information is identification information of a cooperative service providing apparatus that provides a cooperative service in response to the use request signal. The service start time information is time information indicating the time when the cooperation service is started. The number of information provisions is information indicating the number of times presence information is acquired during the cooperation service. The latest provision time information is time information indicating the reception time of the last received presence information.

Next, since the cooperative service providing device 3 and the cooperative service providing device 4 have the same configuration, the internal configuration of the cooperative service providing device 3 will be described with reference to the drawings.
FIG. 3 is a block diagram illustrating a configuration of the cooperative service providing apparatus 3.
The cooperative service providing apparatus 3 includes an IMS (IP Multimedia Subsystem) support unit 31, a Web support unit 32, a service management control unit 33, a scenario server 34, a service bus 35, a presence system status determination unit 36, a user This is a server device that provides a cooperative service including a context information DB 37 and a presence information DB 38.

  The Web corresponding unit 32 of the cooperative service providing apparatus 3 communicates with the WebAS 21 and WebAS 22 via the information network 2. Further, the Web corresponding unit 32 outputs the presence information use request signal received from the WebAS 21 or the WebAS 22 to the service management control unit 33. Further, the Web corresponding unit 32 executes data conversion and protocol conversion between the scenario server 34, other functional units of the cooperation service providing apparatus 3, and the information network 2.

  The IMS corresponding unit 31 communicates with the terminal 11 via the communication network 1. Further, the IMS corresponding unit 31 receives response information for the presence information use request signal from the terminal 11 and outputs the response information to the service management control unit 33. Further, the IMS corresponding unit 31 executes data conversion and protocol conversion between the cooperation service providing apparatus 3 and the communication network 1.

The user context information DB 37 stores context information including authentication information for each user who uses the service. The authentication information is authentication information including the identification information of the WebAS 21 and the WebAS 22 and the password thereof, and the user account information and the password thereof. Moreover, context information is information showing a user's state and condition, for example, preference information of the user who owns the terminal 11, environmental conditions such as temperature, humidity, illuminance, etc. There are user physical condition information such as body temperature, pulse, blood pressure and the like.
The presence information DB 38 stores presence information received from the communication network 1. Presence information is information indicating the user's presence status, for example.

The service management control unit 33 performs an authentication process.
Here, as the authentication process, the service management control unit 33 determines whether or not the authentication information of the WebAS 21 or WebAS 22 included in the information cooperation service use request matches the registered authentication information stored in the presence information DB 38. The authentication process is executed by determining.
For example, it is assumed that the presence information use request signal transmitted by the WebAS 21 includes user account information and its password, and identification information of the WebAS 21 and its password as authentication information.

  When the received identification information of the presence information use request signal matches the registered authentication information stored in the user context information DB 37, the service management control unit 33 determines that user authentication has been performed, and otherwise It is determined that the user authentication has failed.

Further, the service management control unit 33 writes the above-described presence information usage status information in the presence information sharing DB 5 via the presence system status determination unit 36 based on the presence information received from the communication network 1, thereby Save usage records.
In addition to the above, the service management control unit 33 may perform processing such as billing processing for service usage, policy management processing, user management processing, partner management processing, and the like.

The scenario server 34 includes a scenario execution unit and a scenario storage unit.
In the scenario storage unit, a scenario in which a process execution procedure is described is stored as a scenario file.
The scenario execution unit reads a scenario file corresponding to the service use request signal received by the cooperative service providing apparatus 3 from the scenario storage unit, and executes processing based on the read scenario file.

Note that the scenario execution unit of the scenario server 34 executes the process only when the user authentication can be performed as the authentication process by the service management control unit 33. Moreover, the scenario server 34 transmits the information of an authentication error to the transmission source of a presence information utilization request signal, for example, when user authentication cannot be performed as an authentication process by the service management control unit 33.
Further, the processing operation executed in the cooperative service providing apparatus 3 after user authentication in the service management control unit 33 is assumed to be processing based on the scenario in the scenario server 34.

The scenario described above is stored in the IMS corresponding unit 31 and may be executed by the IMS corresponding unit 31.
The service bus 35 relays information between the WebAS 21, the WebAS 22, the scenario server 34, and the Web corresponding unit 32.

The presence system status determination unit 36 is connected to the presence information sharing DB 5. The presence system status determination unit 36 determines whether another cooperative service providing apparatus, here, the cooperative service providing apparatus 4 is using the presence information corresponding to the presence information use request signal.
In this determination, the presence system status determination unit 36 searches the presence information sharing terminal 5 for the presence information source terminal ID included in the presence information use request signal, and whether or not the presence information source terminal ID is stored in the presence information sharing DB 5. Judge by.

  Here, if the presence system status determination unit 36 determines that the cooperative service providing apparatus 4 which is another cooperative service providing apparatus is not already using the presence information, the presence system status determining unit 36 identifies the presence information acquisition target of the presence information use request signal. A presence information transmission request signal is output to the terminal corresponding to the information source terminal ID.

  When the presence system status determination unit 36 determines that the cooperative service providing apparatus 4 which is another cooperative service providing apparatus is already using the presence information, the presence system status determining unit 36 transmits the presence information use request signal received by the cooperative service providing apparatus 4. Send. Therefore, the cooperative service providing apparatus 4 performs the cooperative service corresponding to the presence use request signal received by the cooperative service providing apparatus 3.

Next, the operation of the load distribution system 100 according to an embodiment of the present invention will be described.
FIG. 4 is a diagram showing a flow of processing operations of the load distribution system 100 according to the present embodiment. The processing operation of FIG. 4 in this embodiment is performed when the WebAS 21 uses the presence information of the terminal 11 via the cooperative service providing apparatus 3 while the WebAS 22 uses the presence information of the terminal 11 via the cooperative service providing apparatus 4. Is the processing operation.

FIG. 4 shows an example of operation processing using the Common Notify method as an example.
The processing based on the presence information use request signal continues until the cooperation service providing apparatuses 3 and 4 input the presence information use end request signal, and transmits presence information for each presence change in the terminal 11.
In the operation example of the present embodiment, it is assumed that the user authentications of the WebAS 21 and WebAS 22 that transmit the presence information use request signal are both user authentications.

  The APL 211 outputs a message “subscribePresence” to the cooperative service providing apparatus 3 as a presence information request signal including the identification information of the terminal 11 that is the presence information acquisition target (step S20).

  When receiving the presence information request signal, the service management control unit 33 of the cooperative service providing apparatus 3 performs the authentication process as described above. Here, since the user authentication can be performed, the service management control unit 33 of the cooperative service providing apparatus 3 outputs a presence information use request signal to the scenario server 34 via the Web correspondence unit 32 and the service bus 35. To do.

  The scenario server 34 of the cooperative service providing apparatus 3 causes each unit of the cooperative service providing apparatus 3 to execute processing according to the presence information usage request signal based on the scenario corresponding to the presence information usage request signal. The following processing of the cooperative service providing apparatus 3 is performed based on the scenario of the scenario server 34. Further, in the operation example of the present embodiment, the communication between the scenario server 34 and the service management control unit 33 is described as being performed via the Web correspondence unit 32 and the service bus 35.

  The scenario server 34 of the cooperative service providing apparatus 3 outputs an execution request signal for presence information usage status determination to the presence system status determination unit 36 via the service management control unit 33. The presence system status determination unit 36 of the cooperative service providing apparatus 3 refers to the presence information sharing DB 5 based on the identification information of the terminal 11 that is the presence information source terminal ID included in the input execution request signal, that is, the presence information sharing DB 5. Is searched (step S21).

Here, the presence system status determination unit 36 of the cooperative service providing apparatus 3 outputs the determination result to the scenario server 34 via the service management control unit 33 in order to determine that the presence information for the terminal 11 is not in use.
Based on the determination result that the presence information for the terminal 11 is not being used, the scenario server 34 of the cooperative service providing apparatus 3 outputs a transmission request signal for the presence information request signal reception notification to the service management control unit 33.

  The service management control unit 33 of the cooperative service providing apparatus 3 transmits a message “notifySubscription” indicating that the presence information request signal has been received to the APL 211 based on the transmission request signal of the reception notification input from the scenario server 34 (step S21). S22).

  In the WebAS 21, the APL 211 transmits a message “startPresenceNotification” indicating the presence information reception standby state to the cooperative service providing apparatus 3 in response to the message “notifySubscription” received in step S22 (step S23).

When receiving the message “startPresenceNotification” from the APL 211, the service management control unit 33 of the cooperative service providing apparatus 3 transmits a message “SUBSCRIBE” requesting presence information to the terminal 11 (step S24).
Here, the IMS corresponding unit 31 of the cooperative service providing apparatus 3 converts the message “subscribePresence” into a SIP (Session Initiation Protocol) message “SUBSCRIBE”. In the following description, the IMS corresponding unit 31 converts a message to be transmitted to the terminal 11 in advance by a predetermined message conversion method based on messages received from the WebAS 21 and WebAS 22 connected to the information network 2. To do.

  The terminal 11 connected to the communication network 1 reads the presence information stored in the internal storage area by the terminal 11 in response to the received message “SUBSCRIBE” requesting presence information, and the message “NOTIFY” including the read presence information. Is transmitted to the cooperative service providing apparatus 3 (step S25).

  The service management control unit 33 of the cooperative service providing apparatus 3 receives the message “NOTIFY” via the IMS corresponding unit 31 and outputs a reception notification of the message “NOTIFY” to the scenario server 34. The scenario server 34 of the cooperative service providing apparatus 3 outputs a presence information transmission request signal and a presence information storage request signal to the service management control unit 33.

  Based on the presence information transmission request signal, the service management control unit 33 of the cooperative service providing apparatus 3 sends the message “statusChanged” including the presence information of the received message “NOTIFY” via the Web correspondence unit 32 and the service bus 35. It transmits to APL211 (step S26).

The service management control unit 33 of the cooperative service providing apparatus 3 writes the received presence information of the message “NOTIFY” in the presence information DB 38 based on the presence information storage request signal. In addition, the service management control unit 33 of the cooperative service providing apparatus 3 stores the presence information usage record by writing the presence information usage status information in the presence information sharing DB 5 via the presence system status determination unit 36 (step) S27).
As described above, according to the operation processing in steps S20 to S27, the APL 211 uses the presence information of the terminal 11, that is, every time the presence of the terminal 11 changes, the APL 211 receives the presence information via the cooperative service providing apparatus 3. It becomes.

Next, a case where the APL 221 of the WebAS 22 transmits the presence information request signal of the terminal 11 to the cooperative service providing apparatus 4 after the use of the presence information of the APL 211 is started will be described with reference to steps S28 to S34.
The APL 221 of the WebAS 22 outputs a message “subscribePresence” to the cooperative service providing apparatus 4 as a presence information request signal including identification information of the terminal 11 that is the presence information acquisition target (step S28).

  When receiving the presence information request signal, the service management control unit 33 of the cooperative service providing apparatus 4 performs the authentication process as described above. Here, since user authentication can be performed, the service management control unit 33 of the cooperative service providing apparatus 4 outputs a presence information use request signal to the scenario server 34.

  The scenario server 34 of the cooperative service providing apparatus 4 outputs an execution request signal for presence information usage status determination to the presence system status determination unit 36 via the service management control unit 33. The presence system status determination unit 36 of the cooperative service providing apparatus 4 refers to the presence information sharing DB 5 based on the identification information of the terminal 11 that is the presence information source terminal ID included in the input execution request signal, that is, the presence information sharing DB 5. Is searched (step S29).

  Here, since the presence system status determination unit 36 of the cooperative service providing apparatus 4 determines that the presence information for the terminal 11 is being used by the cooperative service providing apparatus 3, the determination result including the presence information usage status information of the terminal 11 Is output to the scenario server 34 via the service management control unit 33.

  The scenario server 34 of the cooperative service providing apparatus 4 extracts cooperative service providing apparatus identification information from the input presence information usage status information of the terminal 11 based on the determination result that the presence information for the terminal 11 is being used. The scenario server 34 of the cooperative service providing apparatus 4 sends a presence information provision aggregation request signal transmission command signal including the presence information request signal from the APL 221 to the cooperative service providing apparatus 3 corresponding to the extracted cooperative service providing apparatus identification information. Is output to the service management control unit 33.

  The service management control unit 33 of the cooperation service providing apparatus 4 transmits a presence information provision aggregation request signal to the cooperation service providing apparatus 3 based on the input transmission command signal (step S30).

The scenario server 34 of the cooperative service providing apparatus 3 receives the presence information provision aggregation request signal from the cooperative service providing apparatus 4 that is another cooperative service providing apparatus.
Based on the presence information provision aggregation request signal, the scenario server 34 of the cooperative service providing apparatus 3 outputs a transmission request signal for receiving a presence information request signal addressed to the APL 221 to the service management control unit 33.
The service management control unit 33 of the cooperative service providing apparatus 3 transmits a message “notifySubscription” indicating that the presence information request signal has been received to the APL 221 based on the transmission request signal of the reception notification input from the scenario server 34 (step S21). S31).

In the WebAS 22, the APL 221 transmits a message “startPresenceNotification” indicating the presence information reception standby state to the cooperative service providing apparatus 3 in response to the message “notifySubscription” received in Step S31 (Step S32).
When receiving the message “startPresenceNotification” from the APL 221, the service management control unit 33 of the cooperative service providing apparatus 3 reads the presence information corresponding to the terminal 11 from the presence information sharing DB 5 (step S33).

  The service management control unit 33 of the cooperation service providing apparatus 3 outputs a presence information read notification of the terminal 11 to the scenario server 34. The scenario server 34 of the cooperative service providing apparatus 3 outputs a presence information transmission request signal to the service management control unit 33.

Based on the presence information transmission request signal, the service management control unit 33 of the cooperative service providing apparatus 3 sends a message “statusChanged” including the read presence information of the terminal 11 to the APL 221 via the Web corresponding unit 32 and the service bus 35. Transmit (step S34).
As described above, through steps S28 to S34, the APL 221 of the WebAS 22 allows the status information of the terminal 11 to be used, that is, every time the presence of the terminal 11 changes, the APL 221 receives presence information via the cooperative service providing apparatus 3. It becomes.

Next, when the APL 211 of the WebAS 21 and the APL 221 of the WebAS 22 are in use by the above-described steps S20 to S34, with reference to the following steps S35 to S39, the presence information of the terminal 11 Processing when the presence changes will be described.
Until the end signal for the presence information request signal is input, the terminal 11 sends a message “NOTIFY” including presence information indicating that the presence has changed according to the presence change based on the presence information request signal. It transmits to the cooperation service provision apparatus 3 which is the transmission origin of an information request signal.

  In the terminal 11, presence change is detected by presence change detection means for detecting presence change provided in advance in the terminal 11, and stored in a storage area inside the terminal 11 (step S35). The terminal 11 reads the presence information stored in the storage area inside the terminal 11, and transmits a message “NOTIFY” including the read presence information to the cooperative service providing apparatus 3 (step S36).

  The service management control unit 33 of the cooperative service providing apparatus 3 receives the message “NOTIFY” via the IMS corresponding unit 31 and outputs a reception notification of the message “NOTIFY” to the scenario server 34. The scenario server 34 of the cooperative service providing apparatus 3 outputs a presence information transmission request signal and a presence information storage request signal to the service management control unit 33.

  Based on the presence information transmission request signal, the service management control unit 33 of the cooperative service providing apparatus 3 sends the message “statusChanged” including the presence information of the received message “NOTIFY” via the Web correspondence unit 32 and the service bus 35. It transmits to the APL 211 of the WebAS 21 and the APL 221 of the WebAS 22 that are currently using the presence information of the terminal 11 (Steps S37 and S38).

  The service management control unit 33 of the cooperative service providing apparatus 3 writes the received presence information of the message “NOTIFY” in the presence information DB 38 based on the presence information storage request signal. In addition, the service management control unit 33 of the cooperative service providing apparatus 3 stores the presence information usage record by writing the presence information usage status information in the presence information sharing DB 5 via the presence system status determination unit 36 (step) S39).

  The above-described processing of steps S35 to S39 is performed every time the presence of the terminal 11 changes until the end signal for the presence information request signal is input from the APL 211 or APL 221 to the cooperative service providing apparatus 3. It is processing concerning.

Next, with reference to steps S40 to S49, an operation example when an end signal for the presence information request signal is input from the APL 211 and the APL 221 to the cooperative service providing apparatus 3 will be described.
The APL 211 transmits a message “endPresenceNotification”, which is an end signal of the presence information usage of the terminal 11, to the cooperative service providing apparatus 3. The message “endPresenceNotification” includes the identification information of the terminal 11 (step S40).

  When the scenario server 34 of the cooperative service providing apparatus 3 receives the presence information end signal of the terminal 11 from the APL 211 via the service management control unit 33, the presence system status determination unit 36 sends the presence information sharing DB 5 to the presence information of the terminal 11. A read request for information usage status information is output. The presence system status determination unit 36 of the cooperative service providing apparatus 3 reads presence information usage status information from the presence information sharing DB 5 using the identification information of the terminal 11 as a search key, and outputs it to the scenario server 34 (step S41).

Here, since the APL 221 is using the presence information in addition to the APL 211 that is the transmission source of the presence information use end signal, the scenario server 34 of the cooperative service providing apparatus 3 sends a presence information use end signal to the terminal 11. Without sending, a write data deletion command signal including the identification information of the terminal 11 as the presence information source terminal ID and the identification information of the APL 211 as the requested user identification information is output to the presence system status determination unit 36.
The presence system status determination unit 36 of the cooperative service providing apparatus 3 deletes the presence information usage status information for the terminal 11 of the APL 211 from the presence information sharing DB 5 based on the write data deletion command signal (step S42).

  The scenario server 34 of the cooperative service providing apparatus 3 transmits a message “endStrbscrintionNotification” notifying that the termination process has been performed to the APL 211 (step S43).

Next, a case where a presence information use end signal is transmitted from the APL 221 of the WebAS 22 to the cooperative service providing apparatus 3 will be described.
The APL 221 transmits a message “endPresenceNotification”, which is a presence information use end signal including the identification information of the terminal 11, to the cooperative service providing apparatus 3 (step S44).

  When the scenario server 34 of the cooperative service providing apparatus 3 receives the presence information usage termination signal of the terminal 11 from the APL 221 via the service management control unit 33, the presence system status determination unit 36 sends the presence information of the terminal 11 from the presence information sharing DB 5. A read request for information usage status information is output. The presence system status determination unit 36 of the cooperative service providing apparatus 3 reads the presence information usage status information from the presence information sharing DB 5 using the identification information of the terminal 11 as a search key, and outputs it to the scenario server 34 (step S45).

Here, since only the APL 221 that is the transmission source of the presence information use end signal is using the presence information, the scenario server 34 of the cooperative service providing apparatus 3 sends the presence information use end signal transmission command signal to the terminal 11. Is output to the service management control unit 33.
The service management control unit 33 of the cooperative service providing apparatus 3 transmits a message “SUBSCRIBE” to the terminal 11 as a use termination request based on the transmission command signal for the termination signal (step S46).

  In response to the received usage termination request message “SUBSCRIBE”, the terminal 11 transmits a message “NOTIFY” notifying the termination of the usage of presence information to the cooperative service providing apparatus 3 (step S47).

When the scenario server 34 of the cooperation service providing apparatus 3 receives the notification of the end of use from the terminal 11, the presence system status determination unit 36 receives the identification information of the terminal 11 that is the presence information source terminal ID and the requested user identification information. A write data deletion command signal including the identification information of the APL 221 is output.
The presence system status determination unit 36 of the cooperative service providing apparatus 3 deletes the presence information usage status information for the terminal 11 of the APL 221 from the presence information sharing DB 5 based on the write data deletion command signal (step S48).

  The scenario server 34 of the cooperative service providing apparatus 3 transmits a message “endStrbscrintionNotification” notifying that the termination process has been performed to the APL 221 (step S49).

Note that the above-described steps S20 to S49 have described the case where there are two devices, the cooperative service providing device 3 and the cooperative service providing device 4, as an operation example. Can be reduced.
In the present embodiment, the case of using the Common Notify method has been described as an example, but the present invention is not limited to this.

The presence information DB 38 may be degenerated in the user context information DB 37, that is, the presence information DB 38 may be included in the user context information DB 37.
In step S33, the presence information is read from the presence information sharing DB 5, but may be read from the presence information DB 38 of the cooperation service providing apparatus 3.

FIG. 5 is a conceptual diagram showing the flow of information by arrows according to the present embodiment. Here, the arrows in FIG. 5 conceptually show the flow of information when the WebAS 21 and WebAS 22 connected to the information network 2 transmit the presence information use request signal of the terminal 11 connected to the communication network 1.
According to the embodiment described above, in the load distribution system 100 having a plurality of cooperation service providing devices, the presence information sharing DB 5 for storing the information usage status information of the presence information in the presence information sharing DB 5 is provided.

As a result, the presence information usage status information is shared, and as shown in FIG. 5, the cooperative service providing apparatus 3 collects and transmits presence information for applications included in the two web service providing systems APL 211 and APL 221. Is possible.
Therefore, according to the present embodiment, there is an effect that the traffic of the presence information flowing in the communication network 1 that is generated every time the presence is changed is halved.
Further, according to the present embodiment, there is an effect that server resources can be reduced.

  Here, two applications have been described as examples. However, the present invention is not limited to this, and when three or more applications request the presence information of the same terminal at the same time, a reduction rate of traffic in the communication network 1 with respect to conventional traffic Will go up further.

  Note that the information included in the terminal device described in the present invention corresponds to presence information, the information usage status information described in the present invention corresponds to presence information usage status information, and the information usage request signal described in the present invention is Corresponding to the presence information request signal, the information transmission aggregation request signal described in the present invention corresponds to the presence information provision aggregation request signal, and the first web service providing apparatus described in the present invention corresponds to WebAS21, The second web service providing apparatus described in the present invention corresponds to WebAS 22, and the information use end request signal for the information use request signal described in the present invention corresponds to a presence information use end signal.

  The above-described cooperative service providing apparatus 3 and the cooperative service providing apparatus 4 have a computer system inside. And the IMS corresponding part 31 of the cooperation service provision apparatus 3 and the cooperation service provision apparatus 4, the Web corresponding part 32, the service management control part 33, the scenario server 34, the service bus 35, the presence system condition determination part 36, user context information The operation process of the DB 37 and the presence information DB 38 is stored in a computer-readable recording medium in the form of a program, and the above-described processing is performed by the computer system reading and executing this program. The computer system here includes a CPU, various memories, an OS, and hardware such as peripheral devices.

  Further, the program for realizing each step shown in FIG. 4 is recorded on a computer-readable recording medium, and the program for realizing the function of the cooperative service providing apparatus 3 shown in FIG. 3 is computer-readable. Even if processing is performed in which recording information is recorded on a recording medium, and the program recorded on the recording medium is read and executed by a computer system so that presence information is aggregated by one cooperative service providing apparatus. Good. Here, the “computer system” may include an OS and hardware such as peripheral devices.

Further, the “computer system” includes a homepage providing environment (or display environment) if a WWW system is used.
The “computer-readable recording medium” means a flexible disk, a magneto-optical disk, a ROM, a writable nonvolatile memory such as a flash memory, a portable medium such as a CD-ROM, a hard disk built in a computer system, etc. This is a storage device.

Further, the “computer-readable recording medium” means a volatile memory (for example, DRAM (Dynamic DRAM) in a computer system that becomes a server or a client when a program is transmitted through a network such as the Internet or a communication line such as a telephone line. Random Access Memory)), etc., which hold programs for a certain period of time.
The program may be transmitted from a computer system storing the program in a storage device or the like to another computer system via a transmission medium or by a transmission wave in the transmission medium. Here, the “transmission medium” for transmitting the program refers to a medium having a function of transmitting information, such as a network (communication network) such as the Internet or a communication line (communication line) such as a telephone line.
The program may be for realizing a part of the functions described above. Furthermore, what can implement | achieve the function mentioned above in combination with the program already recorded on the computer system, and what is called a difference file (difference program) may be sufficient.

  According to the present invention, traffic for presence information communication required for ubiquitous services can be reduced, so that the development of ubiquitous services at low cost is promoted, and it is useful for promoting the development of both the communication network industry and the information network industry. Natsutsu.

1 is a block diagram showing an overall configuration of a load distribution system 100 system according to an embodiment of the present invention. It is a figure which shows the example of a data structure of presence information sharing DB5 in the embodiment. It is a block diagram which shows the internal structure of the cooperation service provision apparatus 3 by the embodiment. It is a figure which shows the operation | movement flow of the load distribution system 100 by the embodiment. It is a conceptual diagram which shows the data flow of the load distribution system 100 in the embodiment. It is a conceptual diagram which shows the data flow of the conventional system. It is a figure which shows the operation | movement flow of the conventional system.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Communication network 2 Information network 3, 4 Cooperation service provision apparatus 5 Presence information sharing DB (information sharing storage apparatus)
11 Terminal (terminal equipment)
21, 22 WebAS (Web Service Providing Device)
211, 221 APL
100 load distribution system 31 IMS corresponding part (information transmission request signal transmission means)
32 Web corresponding part (information use request signal receiving means, information transmitting means)
33 Service management control unit (aggregation request signal transmission means)
34 Scenario server 35 Service bus 36 Presence system status determination unit (situation determination means, information usage status information writing means, information usage status information deletion means)
37 User context information DB
38 Presence Information DB

Claims (7)

Provision of two or more linked services that link a communication network, an information network, a terminal device connected to the communication network and providing information, a web service providing device connected to the information network, and a service of the communication network and the information network A load balancing system comprising a device,
An information sharing storage device for storing information usage status information of information that the terminal device has,
The cooperative service providing device includes:
An information use request signal receiving means for receiving an information use request signal including identification information of an information use target terminal device;
Based on the identification information of the information usage target terminal device of the information usage request signal received by the information usage request signal receiving means, information usage status information of the information usage target terminal device is read from the information shared storage device, and the information Status determination means for determining whether information on the terminal device to be used is being used by another cooperative service providing device;
Information transmission request signal transmission for transmitting an information transmission request signal to the information utilization target terminal device when the situation determination means determines that the information of the information utilization target terminal device is not being used by the other cooperative service providing device Means,
Information transmitting means for transmitting information received from the information utilization target terminal device to the web service providing device that is the transmission source of the information utilization request signal as a response to the information utilization request signal;
When the situation determination unit determines that the information of the information usage target terminal device is being used by the other cooperative service providing device, the information transmission aggregation request signal including the information usage request signal is provided to the other cooperative service provision Aggregation request signal transmitting means for transmitting to the device and transmitting the information on the information utilization target terminal device to the web service providing device;
An information usage status information writing unit that writes information usage status information corresponding to the information usage request signal in the information shared storage device. The cooperative service providing device includes:
The first web service providing device that is the transmission source of the first information use request signal received by the own device, and the second information use request signal included in the information transmission aggregation request signal received from another cooperative service providing device. The load distribution system according to claim 1, further comprising information transmission aggregation means for transmitting a response from the information use target terminal device to a second web service providing device that is a transmission source. The cooperative service providing device includes:
When receiving the information use end request signal for the information use request signal from the web service providing device that is the transmission source of the information use request signal, the information use status information of the information use target terminal device corresponding to the information use request is obtained. The load distribution system according to claim 1, further comprising information usage status information deletion means for deleting from the information shared storage device. A communication network, an information network, a terminal device connected to the communication network, a web service providing device connected to the information network, two or more linked service providing devices that link services of the communication network and the information network, and the terminal A cooperative service providing device in a load balancing system including an information sharing storage device that stores information usage status information of information held by the device,
An information use request signal receiving means for receiving an information use request signal including identification information of an information use target terminal device;
Based on the identification information of the information usage target terminal device of the information usage request signal received by the information usage request signal receiving means, information usage status information of the information usage target terminal device is read from the information shared storage device, and the information Status determination means for determining whether information on the terminal device to be used is being used by another cooperative service providing device;
Information transmission request signal transmission for transmitting an information transmission request signal to the information utilization target terminal device when the situation determination means determines that the information of the information utilization target terminal device is not being used by the other cooperative service providing device Means,
Information transmitting means for transmitting information received from the information utilization target terminal device to the web service providing device that is the transmission source of the information utilization request signal as a response to the information utilization request signal;
When the situation determination unit determines that the information of the information usage target terminal device is being used by the other cooperative service providing device, the information transmission aggregation request signal including the information usage request signal is provided to the other cooperative service provision Aggregation request signal transmitting means for transmitting to the device and transmitting the information on the information utilization target terminal device to the web service providing device;
An information service status information writing unit that writes information service status information corresponding to the information service request signal to the information sharing storage device. A communication network, an information network, a terminal device connected to the communication network, a web service providing device connected to the information network, and two or more linked service providing devices that link services of the communication network and the information network An information sharing storage device used in a load balancing system,
As the information usage status information for the terminal device, the linked service providing device provides the identification information of the terminal device, the identification information of the transmission source of the information usage request signal for the terminal device, and the service corresponding to the information usage request signal Is stored in association with the identification information of the cooperative service providing device that executes as a cooperative service,
The information sharing storage device, wherein the information usage status information for the information usage request signal is deleted by the cooperative service providing device that receives the information usage end request signal for the information usage request signal. Provision of two or more linked services that link a communication network, an information network, a terminal device connected to the communication network and providing information, a web service providing device connected to the information network, and a service of the communication network and the information network A load balancing method in a load balancing system comprising a device and an information sharing storage device that stores information usage status information of information on the terminal device,
The cooperation service providing device is
An information use request signal receiving step for receiving an information use request signal including identification information of an information use target terminal device; and
Based on the identification information of the information usage target terminal device in the received information usage request signal, the information usage status information of the information usage target terminal device is read from the information sharing storage device, and the information of the information usage target terminal device is other A situation determination step for determining whether or not the cooperative service providing apparatus is in use;
In the situation determination step, when it is determined that the information of the information usage target terminal device is not being used by the other cooperative service providing device, an information transmission request signal is transmitted to the information usage target terminal device, and the information usage An information transmission step of transmitting information received from the target terminal device to the web service providing device that is the transmission source of the information use request signal as a response to the information use request signal;
In the situation determination step, when it is determined that the information of the information usage target terminal device is being used by the other cooperative service providing device, an information transmission aggregation request signal including the information usage request signal is transmitted to the other cooperative service. An aggregation request signal transmitting step for transmitting to the providing device and causing the web service providing device to transmit information on the information use target terminal device;
An information usage status information writing step of writing information usage status information corresponding to the information usage request signal to the information shared storage device. Provision of two or more linked services that link a communication network, an information network, a terminal device connected to the communication network and providing information, a web service providing device connected to the information network, and a service of the communication network and the information network A computer used for the cooperative service providing apparatus in a load distribution system including a device and an information sharing storage device that stores information usage status information of the information of the terminal device;
An information use request signal receiving step for receiving an information use request signal including identification information of an information use target terminal device; and
Based on the identification information of the information usage target terminal device in the received information usage request signal, the information usage status information of the information usage target terminal device is read from the information sharing storage device, and the information of the information usage target terminal device is other A situation determination step for determining whether or not the cooperative service providing apparatus is in use;
In the situation determination step, when it is determined that the information of the information usage target terminal device is not being used by the other cooperative service providing device, an information transmission request signal is transmitted to the information usage target terminal device, and the information usage An information transmission step of transmitting information received from the target terminal device to the web service providing device that is the transmission source of the information use request signal as a response to the information use request signal;
In the situation determination step, when it is determined that the information of the information usage target terminal device is being used by the other cooperative service providing device, an information transmission aggregation request signal including the information usage request signal is transmitted to the other cooperative service. An aggregation request signal transmitting step for transmitting to the providing device and causing the web service providing device to transmit information on the information use target terminal device;
An information usage status information writing step of writing information usage status information corresponding to the information usage request signal to the information shared storage device is executed.

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