WO2006112381A1 - サーバ装置、情報通知方法、および情報通知システム - Google Patents
サーバ装置、情報通知方法、および情報通知システム Download PDFInfo
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- WO2006112381A1 WO2006112381A1 PCT/JP2006/307912 JP2006307912W WO2006112381A1 WO 2006112381 A1 WO2006112381 A1 WO 2006112381A1 JP 2006307912 W JP2006307912 W JP 2006307912W WO 2006112381 A1 WO2006112381 A1 WO 2006112381A1
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- Prior art keywords
- notification
- message
- information
- state
- terminal
- Prior art date
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
- H04L12/54—Store-and-forward switching systems
- H04L12/56—Packet switching systems
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L41/00—Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks
- H04L41/08—Configuration management of networks or network elements
- H04L41/0896—Bandwidth or capacity management, i.e. automatically increasing or decreasing capacities
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/08—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters
- H04L43/0805—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability
- H04L43/0817—Monitoring or testing based on specific metrics, e.g. QoS, energy consumption or environmental parameters by checking availability by checking functioning
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
- H04L67/125—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks involving control of end-device applications over a network
Definitions
- the present invention relates to a server device, an information notification method, and an information notification system that collect state information of devices and the like and notify a reference terminal such as a client device.
- a presence server device collects or receives the status of electronic devices and user status as status information through electronic devices that can communicate with the server device, and refers to the status information.
- This service is realized by notifying the client device, which is the desired reference terminal.
- the presence service is disclosed in, for example, Japanese Unexamined Patent Publication No. 2001-84195 (hereinafter referred to as Patent Document 1) or Japanese Unexamined Patent Application Publication No. 2004-72485 (hereinafter referred to as Patent Document 2).
- the client device that receives the status information notifies the presence server device in advance that a part of the information held in the presence server device is received by a message or the like, and the corresponding status information changes. In many cases, the status information is also sent to the presence server device only when it is received.
- FIG. 30 is a sequence diagram of an information notification system for realizing a conventional presence service.
- a server device 100 as an information notification relay device is connected to a user device 105 that manages user presence information and the like, and an information notification terminal 106 such as an electronic device.
- 106 states are managed.
- the information notifying terminal 106 has changed its own state (for example, the power on / off state).
- the user device 105 acquires status information indicating the status, and the information is displayed in a SIP publish (PUBLIS H) message. Is transmitted to the server apparatus 100 (S3001).
- the user device 105 transmits information on the presence of the user to the server device 100, but the information notification terminal 106 also transmits information about power-on to the server device 100. Yes.
- the user apparatus 105 will be described.
- the user device 105 acquires the user state by a user key operation or the like, or acquires the user state without operation using a sensor or the like.
- Server apparatus 100 stores and holds the received status information in a memory or the like, and sends a response message of "200 OK" as a response message to information notification terminal 106 that has transmitted the message ( S3002).
- the subscriber terminal 102 subscribes to the server device 100 by specifying the status information of the user device 105 ( SUBSCRIBE) message is transmitted (S300 3).
- SUBSCRIBE status information of the user device 105
- the server apparatus 100 receives the SUBSCRIBE message, the server apparatus 100 transmits a response message of “200 OK” to the reference terminal 102 (S3004), and also stores the state information (user apparatus 105) of the user apparatus 105 previously held. : Notified (SIP) is sent to the referrer terminal 102 (S3005).
- SIP Notified
- the referrer terminal 102 displays it on the display unit and transmits a “200 OK” response message to the server device 100 (S3006).
- this information is set in a SIP PUBLISH message and transmitted to the server device 100 (S3007). ).
- the server apparatus 100 Upon receiving the PUBLISH message, the server apparatus 100 stores and holds it in a memory or the like, and transmits a “200 OK” response message to the user apparatus 105 (S3008).
- the server apparatus 100 sets the state information (for example, user 105: away) of the user apparatus 105 stored and held in advance in the SIP NOTIFY message and transmits it to the referrer terminal 102 (S3009).
- the referrer terminal 102 receives the NOTIFY message, it displays it.
- a response message “200 OK” is transmitted to the server apparatus 100 (S3010), and the series of operations ends.
- the status information of the information notification terminal 106 and the user device 105 can be obtained from the server device 100 and displayed on a display device or the like.
- the number of reference terminals 102 that receive notification from the server apparatus 100 increases, and the number of information notification terminals 106 and user apparatuses 105 that are managed by the server apparatus 100 increases.
- the status update frequency of the information notification terminal 106 and the user device 105 is increased, and it is considered that the traffic for the notification of the status information increases. Due to this increase in traffic, the load on the server device 100 increases extremely. Depending on the degree of the load, the processing capacity of the server device 100 may be exceeded, and the status information from the information notification terminal 106 and the user device 105 cannot be processed. And there is a problem that the status information notification to the reference terminal 102 cannot be performed successfully.
- the information notification system described in Patent Document 2 reduces the number of state notifications to be transmitted by the server apparatus 100 only when there are a plurality of state notifications for the same reference terminal 102. If many referrer terminals 102 receive the status information transmitted from the information notification terminal 106, the effect of reducing the load on the server device 100 cannot be obtained. If the notification is still delayed or discarded!
- the information notification system described in Patent Document 2 employs a method in which a plurality of state information is aggregated and transmitted to the referrer terminal 102 at the same time as the state information is periodically updated. There is a problem that notification to the reference terminal 102 is delayed until the status information is periodically updated.
- the number of information notification terminals, referrer terminals, and information to be referred to increases, and traffic of burst information notification is generated. It is possible to take measures against the increase in load by improving the hardware spec of the server device 100, or providing multiple server devices 100 and distributing the load to them. There is a problem that the configuration of the entire system becomes complicated, which increases the cost of the entire system.
- the present invention has been made in view of such a conventional problem, and even when a large load is applied to the server device, information on the user and the information notification terminal power is delayed. Can be transmitted accurately to the reference terminal without aggregation or destruction, and each reference terminal does not need a function for interpreting the aggregated state information, and can be connected to a plurality of server devices. It provides a server device, an information notification method, and an information notification system that do not require load distribution.
- the server device of the present invention receives and manages a device or a state of a user operating the device as state information, and detects a load state of the device main body from the state information reception state;
- a notification request receiving unit that receives a notification request message from a reference terminal that requests notification of the status information, a notification response transmitting unit that transmits a notification response message in response to the received notification request message, and the management unit
- a state notification transmission unit that transmits the state notification message including the state information received to the reference terminal in a limited manner according to the load state.
- the state notification transmission control unit restricts and transmits the state notification message including the state information collected by the management unit. Therefore, the status information can be accurately transmitted to the reference terminal without delay or discard or without aggregation.
- FIG. 1 is a diagram showing a schematic configuration of an information notification system according to Embodiment 1 of the present invention.
- FIG. 2 is a block diagram showing a configuration of an information notification system in Embodiment 1 of the present invention.
- FIG. 3 is a sequence diagram showing an operation of the information notification system according to Embodiment 1 of the present invention.
- FIG. 4 is a diagram showing an example of a message format by SIP of the information notification system according to Embodiment 1 of the present invention.
- FIG. 5 is a diagram showing another example of a message format by SIP of the information notification system in Embodiment 1 of the present invention.
- FIG. 6 is a diagram showing another example of a message format by SIP of the information notification system in Embodiment 1 of the present invention.
- FIG. 7 is a block diagram showing a configuration of an information notification system according to Embodiment 2 of the present invention.
- FIG. 8 is a sequence diagram showing an operation of the information notification system in the second embodiment of the present invention.
- FIG. 9 is a diagram showing an example of a message format by SIP of the information notification system in Embodiment 3 of the present invention.
- FIG. 10 is a block diagram showing a configuration of an information notification system according to Embodiment 4 of the present invention.
- FIG. 11 is a sequence diagram showing an operation of the information notification system in Embodiment 4 of the present invention.
- FIG. 12 is a sequence diagram showing an operation of the information notification system in Embodiment 5 of the present invention.
- FIG. 13 is a sequence diagram showing an operation of the information notification system in the sixth embodiment of the present invention.
- FIG. 14 is a sequence diagram showing an operation of the information notification system in Embodiment 7 of the present invention.
- FIG. 15 is a block diagram showing a configuration of an information notification system in Embodiment 8 of the present invention.
- FIG. 16 is a sequence diagram showing an operation of the information notification system in Embodiment 8 of the present invention.
- FIG. 17 is a diagram showing an example of a message format by SIP of the information notification system in Embodiment 8 of the present invention.
- FIG. 18 is a diagram showing another example of a message format by SIP of the information notification system in Embodiment 8 of the present invention.
- FIG. 19 is a diagram showing another example of a message format by SIP of the information notification system in Embodiment 8 of the present invention.
- FIG. 20 is a block diagram showing a configuration of an information notification system according to Embodiment 9 of the present invention.
- FIG. 21 is a diagram showing an example of management information used in the information notification system in Embodiment 9 of the present invention.
- FIG. 22 is a diagram showing an example of management information used in the information notification system in Embodiment 10 of the present invention.
- FIG. 23 is a diagram showing an example of management information used in the information notification system in Embodiment 11 of the present invention.
- FIG. 24 is a block diagram showing a configuration of an information notification system in Embodiment 12 of the present invention.
- FIG. 25 is a sequence diagram showing an operation of the information notification system in Embodiment 12 of the present invention.
- FIG. 26 is a sequence diagram showing an operation of the information notification system in Embodiment 13 of the present invention.
- FIG. 27 is a diagram showing an example of a message format by SIP of the information notification system in Embodiment 13 of the present invention.
- FIG. 28 is a sequence diagram showing an operation of the information notification system in Embodiment 14 of the present invention.
- FIG. 29 is a sequence diagram showing an operation of the information notification system in Embodiment 15 of the present invention.
- FIG. 30 is a sequence diagram showing an operation of a conventional information notification system.
- FIG. 1 is a schematic configuration diagram of an information notification system according to Embodiment 1 of the present invention.
- a server device 100 as an information notification relay device includes a state of user presence information, location information, and the like from a device 105 that manages the user's presence state (hereinafter referred to as user device).
- the information notification terminal 106 receives a notification of a state such as power on / off, collects and manages the states of the user device 105 and the information notification terminal 106, and notifies the notification information including these states.
- referrer terminals 102, 103, and 104 serving as information reference units that refer to notification information from the user device 105 and the information notification terminal 106 are connected to each other via the server device 100 and the network 101. Yes.
- the server device 100 various server devices such as a server device for Internet telephone and a server device for video distribution can be used.
- the reference terminals 102, 103, and 104 various terminals such as a personal computer, a general telephone, a mobile phone, and an internet home appliance, and other terminal devices can be used as appropriate.
- the server device 100 only needs to have an information notification function such as a status notification.
- the server device 100 does not necessarily need to match the various server devices listed here.
- the server device 100 is mounted on the information notification terminal 106 that is an information notification unit. It does not matter if it is done.
- the network 101 may be a LAN or a home network in addition to a public network such as the Internet or a telephone network.
- the user device 105 and the information notification terminal 106 are respectively connected by the server device 100. State information is managed. As for the state of the user device 105, the user may operate the key of the user device 105 and transmit the information to the server device 100. However, the server device 100 is provided with a sensor such as a human body sensor. The status of the user's presence or absence may be monitored directly by the sensor. The user device 105 and the information notification terminal 106 may be connected to the server device 100 via a network. However, the user device 105 and the information notification terminal 106 are integrated with the server device 100 so that the user directly operates the server device 100 or the server device 100 The device itself may perform the function of the information notification terminal 106.
- the user device 105 and the information notification terminal 106 are configured to notify the server device 100 of notification information such as its own status information, but the server device 100 itself is conversely a user device. Configure to obtain each status information from 105 and information notification terminal 106.
- the states of the user device 105 and the information notification terminal 106 may include the states of services and functions provided by the user device 105 and the information notification terminal 106, respectively.
- the state of the information notification terminal includes a radio wave state, a power on / off state, a hardware operation state, a manner mode state, and the like.
- FIG. 2 is a schematic configuration diagram showing the server device 100 and the referrer terminal 102 in more detail.
- the server apparatus 100 includes a management unit 1001, a notification request reception unit 1002, a notification response transmission unit 1003, and a status notification transmission unit 1004.
- the referrer terminal 102 includes a notification request transmission unit 1021, a notification response reception unit 1022, a state notification reception unit 1023, and a state notification relay unit 1024.
- the reference terminal 103 is configured in the same manner as the reference terminal 102.
- the server apparatus 100 always manages the status information of the user apparatus 105 and the status information of the information notification terminal 106 using the management unit 1001.
- the status information being managed includes, for example, the user's presence / absence status obtained by operating the user device 105, and the status of the information notification terminal 106 such as power on and power off. In addition to these, there are multiple statuses such as the location of the user and the communication status of the information communication terminal. May be.
- the referrer terminal 102 requests the server device 100 to notify the status information of the user device 105 and the status information of the information notification terminal 106 using the notification request transmission unit 1021. At that time, if the referrer terminal 102 has the relay capability of the status notification message, the notification request message describing the relay capability is transmitted to the server device 100 at the same time.
- the referrer terminal 102 requests the server device 100 to notify the status information of the user device 105 and the status information of the information notification terminal 106, only the user device 105 is designated, or the user device 105 It can also be requested by adding information for requesting notification of only a part of the status information held by.
- the server device 100 When the notification request message is transmitted from the reference terminal 102, the server device 100 receives the notification request message by the notification request receiving unit 1002. After receiving the notification request message, the server apparatus 100 uses the notification response transmission unit 1003 to transmit a response message indicating that the notification request message has been received to the reference terminal 102. At this time, the address information of the referrer terminal 103 that has been set by the administrator of the server device 100 or determined in advance is added to the request response message and transmitted to the referrer terminal 102.
- the management unit 1001 determines the content of each notification request message transmitted by a large number of reference terminal 102, the power of which reference terminal 102 has a relay capability, and the reference terminal 102. Whether each terminal 102 has a relay capability or the like is managed. Therefore, the management unit 1001 can previously set which reference terminal 103 is to be relayed to which reference terminal 102 having the relay capability by the administrator of the server apparatus 100 or the like. At this time, the reference terminal 103 to be relayed can set a plurality of reference terminals by setting a plurality of addresses, for example.
- the server apparatus 100 When the server apparatus 100 receives the notification request message, the server apparatus 100 refers to the management information to check whether the right to access the status information requested by the referrer terminal 102 is confirmed. Or authenticating whether or not the reference terminal 102 is the reference terminal. Based on these results, if it is not normal, error information is added to the notification response message so that the status notification is rejected to the referrer terminal 102. Good. In addition, the server apparatus 100 may add the address information of the plurality of referrer terminals 103 to the notification response message.
- the referrer terminal 102 When the notification response message is transmitted from the server device 100, the referrer terminal 102 receives the notification response message at the notification response receiving unit 1022. When the received notification response message includes the information of the reference terminal 103, the notification response receiving unit 1022 of the reference terminal 102 holds the information.
- the management unit 1001 of the server device 100 acquires the status information of the user device 105 and the status information change of the information notification terminal 106
- the management unit 1001 uses the status notification transmission unit 1004 of the server device 100 to A state notification message including state information and state information change of the information notification terminal 106 is transmitted to the reference terminal 102.
- the status notification message is a notification request message transmitted before only the referrer terminal 102, and the status notification of the user device 105 or the status notification of the information notification terminal 106 is desired among the reference terminal
- the notification response transmission unit 1003 transmits a normal notification response message to all referrer terminals that have transmitted the notification response message.
- the reference terminal 102 receives the state notification message from the server device 100 by the state notification reception unit 1023, displays the received state notification message on the display of the reference terminal 102 with a GUI, or changes state information Processing corresponding to is performed.
- the reference terminal 102 also transmits at least a part of the received status notification message to the reference terminal 103 that was set when the notification response reception unit 1022 received the notification response message. Relay. For example, even when the status information of both the user device 105 and the information notification terminal 106 is set in the status notification message, the reference terminal 102 may relay only the status information of the user device 105, or Both status information may be relayed. These information settings may be set in the notification response message.
- the reference terminal 103 receives the status notification message, the message is displayed on the display of the reference terminal 103, like the reference terminal 102, and the reference terminal 103 is Perform processing corresponding to the status information.
- the present invention does not directly transmit the status information from the server apparatus 100 to the reference terminal 103 other than the reference terminal 102, and the reference terminal 103 is connected via the reference terminal 102.
- the status information can be transmitted, and the traffic to the server device 100 can be reduced.
- SIP Session Initiation Protocol
- FIG. 3 is a sequence diagram showing an operation when SIP is used as a message between devices.
- the server device 100 always manages the status information of the user device 105 and the status information of the information notification terminal 106. For example, as shown in FIG. : Status information indicating presence (that is, meaning that the user operating the user device 105 is present) is received (step S301), and response information “200 OK” is transmitted to the user device 105 (step S302).
- the server apparatus 100 receives the SUB SCRIBE message and is requested by the SUBSCRIBE message.
- a response message “200 OK” corresponding to the content is returned to the referrer terminal 102 (step S304).
- step S303 information indicating that the user apparatus 105 is informed of the status information in the SUBSCRIBE message, and that the reference terminal 102 itself has the ability to relay the status notification message. If information is set, these pieces of information are transmitted from the reference terminal 102 to the server apparatus 100. Such information may be set in the message header or in the body.
- the server apparatus 100 transmits response information “200 OK” to the reference terminal 102 as a notification response message.
- the server device 100 also uses the address information as one of the notification response messages. Transmit to the referrer terminal 102. In this case, such information should be set in the header or body of the notification response message.
- the server device 100 transmits a NOTIFY message as a state notification message to the reference terminal 102 for each change according to a request from the reference terminal 102 (Ste S305).
- state information such as the presence or absence of the user managed by the user device 105 is set. This status information may also be set in either the message header or message body.
- the referrer terminal 102 When the referrer terminal 102 receives the NOTIFY message, the referrer terminal 102 transmits response information “2 00 OK” indicating that fact to the server apparatus 100 (step S 306). Then, the referrer terminal 102 displays the received status information of the user device 105 on the display, or relays the NOTIFY message to the referrer terminal 103 (step S307).
- the reference terminal 102 may transmit the received status information of the user apparatus 105 to the reference terminal 103 as a NOTIFY message. Set and send only a part according to instructions from server device 100.
- the referrer terminal 103 When the referrer terminal 103 receives the NOTIFY message, the referrer terminal 103 displays the message on the display of the referrer terminal 103 and, at the same time, the response information "200 OK" indicating that the NOTIFY message has been received. Transmit to terminal 102 (step S308).
- the status information of the user device 105 changes, for example, when the user managed by the user device 105 leaves the table, similarly, a message indicating that the user managed by the user device 105 has left the table is displayed.
- the user device 105 transmits the message as a PUBLISH message to the server device 100 (step S309).
- the server apparatus 100 transmits a response information “200 OK” message indicating the reception to the user apparatus 105 (step S310). Then, the server device 100 transmits a NOTIFY message indicating that the user managed by the user device 105 has left the table to the referrer terminal 102 due to the change in the status information (step S311).
- reference terminal 102 Upon receiving this NOTIFY message, reference terminal 102 transmits response information "200 OK" indicating that fact to server apparatus 100 (step S312), and transmits the same NOTIFY message to reference terminal 103. (Step S313).
- the referrer terminal 103 receives the NOTIFY message, the referrer terminal 103 sends response information “200 OK” indicating that it has been received to the referrer terminal 102.
- the message is transmitted (step S314), the received message is displayed on the display unit of the reference terminal 103, and an operation corresponding to the message is executed.
- the server device 100 always manages the states of the user device 105 and the information notification terminal 106 as state information.
- the reference is made only by notifying the requesting reference terminal. If the subscriber terminal has the relay capability, the other reference terminal is instructed to notify that and the other reference terminal is notified via the reference terminal.
- the server device has an advantage that it is not necessary to notify each referrer terminal one by one, and traffic to the server device can be reduced.
- 4 to 6 are diagrams showing examples of message formats of the SUBSCRIBE message, the response information “200 OK” for the SUBSCRIBE message, and the NOTIFY message, respectively.
- the NOTIFY message is relayed to the referrer terminal 103 by the Supported header (Supported: Notify-Relay: sip: client 103 @ a. Com). You are instructed to do so.
- the status information of the information notification terminal 106 is indicated by a message body.
- the server device configured as described above is configured to be able to designate another reference terminal that relays the status notification message to the reference terminal. Therefore, since the server terminal can select the reference terminal to be relayed by the server apparatus, the relay instruction is given to the reference terminal that is close to the other reference terminal, or the reference terminal is relayed according to the load and capacity of the reference terminal. And more detailed load balancing and traffic It has the advantage that it can be distributed.
- the referrer terminal can relay the received status notification message to other referrer terminals. Therefore, the server device does not need to directly transmit a status notification message to other referrer terminals, and the load on the server device can be distributed between the referrer terminals. In addition, traffic concentrated on the server device can be distributed to the reference terminal.
- any referrer terminal when any other referrer terminal can be arbitrarily designated, any referrer terminal may be manually selected and designated.
- the server device automatically designates the referrer terminal based on a predetermined condition, these conditions are arbitrarily set, and the reference designated based on the condition is set. The user terminal should be selected.
- the position of the referrer terminal is registered in the server device in advance, and the nearby referrer terminal is selected according to the distance between the positions, and the referrer terminal Can be specified.
- the reference terminal to be relayed is selected according to the load and capacity of the referrer terminal! / ⁇ , the load and capacity of these referrer terminals are respectively registered in advance in the server device and measured each time. Then, manage them in the server device, select a reference terminal with a relatively low load based on the data, and let the reference terminal take charge of relaying! ,.
- FIG. 7 is a block diagram showing a schematic configuration of the information notification system according to Embodiment 2 of the present invention.
- the information notification system includes a server apparatus 100 power management unit 1001, a notification request reception unit 1002, a notification response transmission unit 1003, and a status notification transmission unit 1004. It has a relay referrer terminal holding unit 1005.
- the reference terminal 102 receives a notification request for receiving a notification request message from another reference terminal 103. It has a receiving unit 1025.
- the server apparatus 100 uses the management unit 1001 in the same way as in the first embodiment, and the user apparatus 105 Status information and status information of the information notification terminal 106 are managed.
- the reference terminal 102 transmits a notification request message so as to notify the server device 100 of the status information of the user device 105 and the status information of the information notification terminal 106 using the notification request transmission unit 1021.
- the reference terminal 102 transmits a message indicating that it has the relay capability of the status notification message.
- the server device 100 receives the notification request message by the notification request receiving unit 1002. At this time, the server device 100 uses the relay referrer terminal holding unit 1005 to determine whether or not the referrer terminal has the relay capability of the status notification message. If it is determined that the relay referrer terminal holding unit 1005 has relay capability, for example, the referrer terminal 102 stores the referrer terminal 102 as a referrer terminal having relay capability. The server device 100 transmits a response message to the notification request message to the reference terminal 102 by the notification response transmission unit 1003.
- referrer terminal 102 When a notification response message is transmitted from server apparatus 100, referrer terminal 102 receives the notification response message using notification response receiving section 1022.
- the referrer terminal 103 transmits a notification request message to the server device 100
- the referrer terminal that the relay referrer terminal holding unit 1005 of the server device 100 should relay to the referrer terminal 103 Is stored the server device 100 sends a notification response message indicating an error in which the address information of the reference terminal 102, for example, the reference terminal 102 is set, to the reference terminal 103 by the notification response transmission unit 1003.
- Send to The referrer terminal 103 transmits a notification request message again to the referrer terminal 102 indicated in the received notification response message.
- the referrer terminal 102 receives the notification request message transmitted again by the notification request receiving unit 1025.
- server device 100 when management unit 1001 detects the status information of user device 105 and the status information change of information notification terminal 106, server device 100 causes status notification transmission unit 1004 to perform status information of user device 105. And a status notification message in which status information of the information notification terminal 106 is set is transmitted to the referrer terminal 102.
- the referrer terminal 102 receives the status notification message from the server device 100 using the status notification receiving unit 1023.
- the referrer terminal 102 sends the received status notification message to the referrer
- At least one of the received status notification messages is displayed to the reference terminal 103 that has displayed the notification request message to the notification request receiving unit 1025 by displaying on the display of the terminal 102 or performing processing corresponding to the status.
- Relay the department For example, when the information of both the user device 105 and the information notification terminal 106 is set in the status notification message, only the status information of the user device 105 may be relayed.
- the referrer terminal 103 Upon receiving the status notification message, the referrer terminal 103 displays the message on the display unit of the referrer terminal 103 or performs processing corresponding to the status information.
- the server device 100 always manages the status information of the user device 105 and the status information of the information notification terminal 106. For example, as shown in FIG. 8, the server apparatus 100 receives from the user apparatus 105 the user apparatus 105: status information of presence as a PUBLISH message (step S801), and sends response information “200 OK” to the user apparatus 105. (Step S802)
- a SUBSCRIBE message is transmitted as a notification request message transmitted from the referrer terminal 102 to the server apparatus 100 (step S803).
- the SUBSCRIBE message is set to indicate that the status notification of the user apparatus 105 is desired and that the reference terminal 102 has the capability to relay the status notification message.
- server apparatus 100 When server apparatus 100 receives the SUBSCRIBE message, if it is an acceptable request, server apparatus 100 transmits response information “200 OK” as a notification response message (step S804).
- the server device 100 transmits a NOTIFY message to the reference terminal 102 as a state notification message for each change (Ste S805).
- state information such as the presence / absence of the user managed by the user device 105 is set. This status information can be set in the message header or message body! /.
- the referrer terminal 102 Upon receiving the NOTIFY message, the referrer terminal 102 receives the NOTIFY message as a response message. Response information “200 OK” is transmitted to server apparatus 100 (step S806). Then, the referrer terminal 102 displays the received status information of the user device 105 on a display device with a GUI or performs a predetermined process.
- the referrer terminal 103 transmits a SUBSCRIBE message to the server apparatus 100 to the effect that the state notification of the user apparatus 105 is desired (step S807).
- the server apparatus 100 transmits a “302 Temporarily Moved” message, which is a SIP standard error response message, to the referer terminal 103 as a notification response message (step S808).
- the address information of the referrer terminal 102 having the status notification relay function is set in the “Cont act” header.
- the referrer terminal 103 that has received the “302 Temporarily Moved” message has received an error message in the 300s range according to the standard procedure of SIP, so the referrer terminal 102 set in the “Contact” header
- the SUBSCRIBE message is sent again (step S809).
- the referrer terminal 102 returns response information “200 OK” as a response message thereto (step S810).
- the server device 100 can send any message as long as it is in the 300s range! /.
- the server apparatus 100 always manages the state information of the user apparatus 105 and the state information of the information notification terminal 106.
- the user apparatus 105 receives a user message as a SUBBLISH message. If the user managed by the device 105 is away and receives status information indicating that he / she is away (step S811), response information “200 OK” is transmitted to the user device 105 as a response message at this time (step S812). .
- the server device 100 transmits a NOTIFY message to the referer terminal 102 as a status notification message for each change (step S813).
- the NOTIFY message status information such as the presence / absence of the user managed by the user device 105 is set. This status information can also be set to either the message header or the message body.
- the referrer terminal 102 When receiving the NOTIFY message, the referrer terminal 102 transmits response information “200 OK” as a response message to the server device 100 (step S814).
- the referrer terminal 102 displays the received status information of the user apparatus 105 on the display or performs predetermined processing, and relays the NOTIFY message to the referrer terminal 103 (step S815).
- the received state information of the user apparatus 105 may be set as it is, or only a part of it may be set.
- the referrer terminal 103 transmits response information “200 OK” as the response message (step S816).
- the referrer terminal 102 receives the notification request from the referrer terminal 103 and responds to the referrer terminal 103 with respect to the server device 10 0. It is possible to relay the status notification message received from. Therefore, it is possible to relay the status notification message according to the request of the reference terminal 103, load distribution independent of the server device, sending a notification request to the reference terminal close to the reference terminal 103, etc. This makes it possible to perform more effective traffic distribution.
- the server device 100 can manage information of other reference terminals connected to the reference terminal that is relaying, and even when the reference terminal 103 dynamically increases or decreases, Load distribution and traffic distribution can be performed more appropriately.
- a normal reference terminal having no relay capability such as the reference terminal 103 can use the SIP standard function to transfer the state information notification source from the server apparatus 100 to the reference terminal 102. It has the advantage that it can be changed and can easily accommodate a standard-compliant reference terminal.
- FIG. 9 shows a format example of a status notification message used in the information notification system according to Embodiment 3 of the present invention.
- the referrer terminal 102 when relaying the received status notification message, adds the status information of the referrer terminal 102 to the status notification message and transmits it. ing.
- the status of the referrer terminal 102 is set in addition to the status information that is set in the received status notification message and is managed by the user device 105, and the user is away. Status information indicating that it is on is added.
- the original status notification message does not include the status information issuer information, it is shown in FIG. For example, a “user id” tag may be added so that the issuer of status information can share power.
- the state information of the referrer terminal 102 is received together with the state notification message received from the server device 100, and other referrers It is possible to transmit to the terminal 103, and therefore it is possible to notify the status information more efficiently.
- FIG. 10 is a block diagram showing an information notification system according to Embodiment 4 of the present invention.
- the server apparatus 100 includes a management unit 1001, a notification request receiving unit 1002, a notification response transmitting unit 1003, and an information notification transmitting unit 1004. I have.
- the server device 100 uses the management unit 1001 to notify the state of the user device 105 and the information notification terminal 106 (seated, away, power on / off, etc.) and the state thereof.
- the server device manages the contents of information messages and transmission / reception timing, the contents of notification request messages requested from the reference terminal 102, and the number of user devices 105, information notification terminals 106, etc.
- the degree of load of 100 is managed.
- the management unit 1001 of this embodiment serves as both an information collection unit and an information management unit.
- the management unit 1001 manages status information as notification information of the user device 105 and the information notification terminal 106. Yes.
- the status information is notified to the server device 100 by the user device 105 or the information notification terminal 106, or acquired from the user device 105 or the information notification terminal 106 by the server device 100 itself. By collecting.
- Reference terminal 102 includes notification request transmitting section 1021, notification response receiving section 1022, and information notification receiving section 1023, which are the same as in Embodiment 1.
- the information notification transmission unit 1004 of the server device 100 has the user device 105 and the information notification terminal 106 when the management unit 1001 detects the first state change of the user device 105 and the information notification terminal 106 by the information notification message.
- the information notification message that set the first status of the referrer Send to terminal 102.
- the referrer terminal 102 receives the information notification message in which the first state information is set from the server device 100 using the information notification receiving unit 1023.
- the referrer terminal 102 displays the received first status information on a display device such as a GUI, or performs each process corresponding to the received status information.
- At least one of the referrer terminals 102 to 104 also functions as an information notification terminal.
- a user refers to the status of other users and notifies other users of their own status information, and may have the functions of both a reference terminal and an information notification terminal.
- the management unit 1001 of the server apparatus 100 receives the change registration of the first state information from the information notification terminal 106, the reference terminal 102-104 that desires to refer to the first state information, the second state list of the referrer terminal that actually sends (or does not send) the change notification of the first state information is maintained. That is, a list in which the necessity of transmission of the first state change notification is determined according to the second state is maintained.
- the server apparatus 100 may be possible to set in advance in the management unit 1001 of the server apparatus 100 that “notification of change of status information is not sent to a reference terminal that is away from the seat”.
- the server apparatus 100 receives the notification of the first state information from the information notification terminal 106, the reference that is in the away state among the reference terminals 102 to 104 that desire to refer to the first state information.
- the first status information is not notified to the user terminal, and the first status information is notified only to the reference terminal in the presence state.
- the force described as an example of the presence / absence state of the referrer terminal as the second state information used for determining whether or not the state information notification is necessary is not limited to this.
- referrer terminals 102 to 104 are present, and referrer terminals 102 and 103 transmit a SUBSCRIBE message as a notification request message in advance.
- the SUBSCRIBE message for example, the status notification from the information notification terminal 106 is rarely stored. Set what you want.
- the server apparatus 100 receives the SUBSCRIBE message, it is an acceptable request, and therefore “200 OK” is transmitted as a notification response message.
- the information notification terminal 106 has a first state change, and registers a state change (106: presence) in the server device 100 by a PUBLISH message (S1101). In response to this, the server apparatus 100 transmits “200 OK” to the information notification terminal 106 (not shown).
- the server apparatus 100 When the server apparatus 100 receives the PUBLISH message, the server apparatus 100 transmits a NOTIFY message to the reference terminals 102 and 103 as a status notification message each time the first status of the information notification terminal 106 changes (S1102, S1103) . Receiving the referrer terminals 102 and 103, it transmits “200 200” to the server device 106 as a notification response message (not shown).
- the reference terminal 104 that desires the first status notification of the information notification terminal 106 receives a SUBSCRIBE message (106 presence information) in which the information notification terminal 106 desires the first status notification. It transmits to the server apparatus 100 (S1104).
- the server apparatus 100 transmits a “200 OK” message to the reference terminal 104 (not shown) and sends a NOTIFY message (106: presence) indicating the first status information of the information notification terminal 106 to the reference terminal.
- Send to 104 (S1105).
- the referrer terminal 104 receives this and transmits “200 OK” as a notification response message to the server device 106 (not shown).
- the information notification terminal 106 registers a state change in the server device 100 by a PUBLISH message (106: leaving) (S1106).
- the server device 100 transmits “200 OK” (not shown) as a notification response message to the information notification terminal 106 and also as a state notification message.
- a NOTIFY message is transmitted to the referrer terminals 102 to 104 (S1107 to S1109). In the NOTIFY message, the first status such as presence or absence of the information notification terminal 106 is set.
- Each of the referrer terminals 102 to 104 transmits a “20 0 OK” message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown).
- each referrer terminal 102 to 104 displays the received first state information on the GUI of each referrer terminal 102 to 104, or performs processing corresponding to the state.
- the management unit 1001 of the server device 100 transmits a NOTIFY message. “Non-seated” is set in advance as the second status list 350 of the non-reference terminal 102-104.
- the operation is as follows. As described above, every time a PUBLISH message that means the first state change of the information communication terminal 106 is received (S1106), all of the reference terminals 102 to 104 are notified by the NOTIFY message. The first status change of 06 is notified (S1107 to S1109).
- the server device 100 receives any power of the referrer terminals 102 to 104, for example, a PUBLISH message indicating that the referrer terminal 102 has shifted to the away state (S1110).
- the server apparatus 100 transmits a “200 OK” message indicating that the PUBLISH message has been received to the referrer terminal 102 (not shown), and updates the contents of the management unit 1001.
- the server apparatus 100 receives the PUB LISH message of the first status change (106: being present) from the information communication terminal 106 (S1111), the server apparatus 100 transmits a NOTIFY message to the reference terminal 102 that is away from the desk.
- the NOTIFY message is transmitted only to the reference terminals 103 and 104 who are present (S1113, S1114).
- the referrer terminals 103 and 104 transmit a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown).
- server apparatus 100 receives a PUBLISH message indicating that it has shifted from the referrer terminal 103 to the away state, for example (S 1115).
- the server apparatus 100 transmits a “200 OK” message indicating that the PUBLISH message has been received to the reference terminal 103 (not shown), and further updates the contents of the management unit 1001.
- the server apparatus 100 receives the PUBLISH message of the first status change (106: leave) from the information communication terminal 106 (S1116), the referee who is away at that time The NOTIFY message is not transmitted to the terminals 102 and 103 (S1117, S1118), and the NOTIFY message is transmitted only to the reference terminal 104 that is present (S1119).
- the referrer terminal 104 transmits a “200 OK” message indicating that the NOTIFY message has been received to the server device 100 (not shown).
- the NOTIFY message (106: leaving) that the server apparatus 100 did not transmit while the referrer terminals 102 and 103 were away from the seat may be discarded.
- the server device 100 receives a PUBLISH message from the referrer terminal 103 (S 1120) indicating that the second state at the end 103 is changed to a state in which the leaving power is also changed to a state other than leaving (for example, sitting).
- the server device 100 may transmit to the referrer terminal 103 (S1121).
- the referrer terminal 103 transmits a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown).
- server apparatus 100 has in advance a second list 350 of reference terminals 102 to 104 that do not transmit a NOTIFY message. Therefore, it is possible to suppress unnecessary traffic for the notification of the change of the first state information of the information communication terminal 106, which has an effect of reducing the load. In addition, it is possible to notify the appropriate status information at an appropriate timing, which has the effect of improving the quality of the presence service.
- FIG. 12 is a sequence diagram showing the operation of the information notification system in the fifth embodiment.
- the configuration of the information notification system in the present embodiment is the same as in FIG.
- referrer terminals 102 to 104 are present, and referrer terminals 102 and 103 have previously transmitted a SUBSCRIBE message to server apparatus 100 as a notification request message.
- server apparatus 100 receives the referrer terminal 102, 103 power SUBSCRIBE message, if it is an acceptable request, it transmits “200 OK” as a notification response message.
- the information notification terminal 106 registers a state change in the server device 100 by a PUB LISH message, and the server device 100 indicates that the PUBLISH message has been received by the information notification terminal 106. Send “OK” message.
- the server device 100 transmits a NOTIFY message as an information notification message to the reference terminals 102 and 103, and the reference terminal 102 and 103 transmits to the server device 100.
- the operation of transmitting a “200 OK” message indicating that a NOTIFY message has been received is the same as in the fourth embodiment.
- information notification terminal 106 is in the first state
- the referrer terminal 104 that desires notification transmits a SUBSCRIBE message in which the first state notification of the information notification terminal 106 is desired to the server apparatus 100 (S1202).
- the referrer terminal 104 sets the information notifying terminal 106 that desires to be referred to and the first state information thereof, and at the same time the second state of the own device 104 that desires (or does not desire) reception of the NOTIFY message.
- “attended” is set as the second state of the referrer terminal 104 that is the own device that wishes to transmit the NOTIFY message.
- the server apparatus 100 Upon receiving the SUBSCRIBE message as described above from the reference terminal 104, the server apparatus 100 sends a "200 OK" message (not shown) as a notification response message if the request is acceptable. It is sent to 104 and the contents of the management unit 1001 are updated. Subsequently, the server device 100 transmits a NOTIFY message in which the presence, which is the first state of the information notification terminal 106, is set to the referrer terminal 104 (S1203). The referrer terminal 104 transmits a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown).
- the information communication terminal 106 registers the first state change (106: leave) in the server device 100 by a PUBLISH message (S1204).
- server apparatus 100 transmits a “200 OK” message indicating that the PUBLISH message has been received to information communication terminal 106 (not shown).
- the server device 100 transmits a NOTIFY message as an information notification message to the referrer terminals 102 to 104 (S 1205 to S 1207).
- the first status such as the presence or absence of the reference terminal 106 is set.
- each reference terminal 102 to 104 Upon receipt of the NOTIFY message, each reference terminal 102 to 104 transmits a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown), and each reference terminal 102 to 104 Displays the received first status information on the GUI of the referrer terminals 102 to 104, or performs processing corresponding to the status.
- the server apparatus 100 is in the first state of the information notification terminal 106.
- a PUBLISH message indicating a state change is received from the information notification terminal 106
- the first status change of the information notification terminal 106 is notified to the referrer terminal 104 by a NOTIFY message in the same manner as for the referer terminals 102 and 103.
- the server apparatus 100 when the server apparatus 100 receives a PUBLI SH message indicating that it has transitioned to the away state from the reference terminal 104 (S1208), it indicates that the PUBLISH message has been received by the reference terminal 104. A "200 OK" message is sent and the contents of the management unit 1001 are updated. After that, when the server apparatus 100 receives the first status change PUBLISH message from the information notification terminal 106 (S 1209, S1213), the server apparatus 100 does not send the NOTIFY message to the referrer terminals 102, 103 until 1210. S1211, S1214, SI 215), and NOTIFY message is not transmitted to the referrer terminal 104 (S1212, S1216).
- the referrer terminals 102 and 103 transmit a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown).
- the server apparatus 100 may discard the NOTIFY message that was not transmitted during the absence of the user, and the second state of the referrer terminal 104 also has the absence of the user as shown in FIG.
- the NOTIF Y message may be transmitted to the referrer terminal 104 (S1218).
- the reference terminal 104 that desires the notification information of the first state of the information notification terminal 106 is notified of the first state of the information notification terminal 106.
- the second state of the own device 104 that wants (or does not want to receive) the NOTIFY message is set in the body of the SUBSCRIBE message. 2 is sent to the server apparatus 100 as notification information.
- the server apparatus 100 As a result, it is possible to suppress traffic that does not require notification of change of the notification information of the first state of the information communication terminal 106, and there is an effect of reducing the load and reducing power consumption.
- FIG. 13 is a sequence diagram showing the operation of the information notification system in the sixth embodiment.
- the configuration of the information notification system in the present embodiment is the same as in FIG. [0130]
- the referrer terminals 102 to 104 are present, and the referrer terminals 102 and 103 desire the notification information of the first state of the information notifying terminal 106 as the notification request message in advance.
- a SUBSCRIBE message with is set.
- the server apparatus 100 receives the SUBSCRIBE message from the reference terminal 102 or 103, if it is an acceptable request, it sends a “200 OK” message as a notification response message.
- the state registration terminal 106 registers the state change in the server apparatus 100 by a PUBLISH message. Further, the server device 100 transmits the NOTIFY message to the reference terminals 102 and 103 as the status notification message every time the first status of the status registration terminal 106 changes, as described in the fifth embodiment. The same
- the information notification terminal 106 together with the first notification information that is the first state of the own device 106, the reference terminal 102 to which the change of the first state of the own device 106 should be notified.
- the second notification information in the state of 104 is set in the body of the PUBLISH message (S1301).
- “attended” is set as the second notification information that is the second state of the reference terminal 102 to 104 that should notify the first notification information that is the first state of the own device 106. ! /
- the SUBSCRIBE message reference terminal 104 is set to the effect that desires notification information of the first status information notifying the terminal 106 transmits to the server apparatus 100 (S1302) o server 100
- the SUBSCRIBE message is received, and a “200 OK” message is transmitted as a notification response message to the reference terminal 104 (not shown).
- the server device 100 transmits a NOTIFY message in which presence is set as the first status notification of the information notification terminal 106 to the referrer terminal 104 (S1303).
- the referrer terminal 104 transmits a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown).
- the server device 100 is in a state where the state of each of the referrer terminals 102 to 104 is requested for state notification as the second notification information in the PUBLISH message (in the example of FIG. 13, it is in the presence state).
- a NOTIFY message ( 106: Leave seat) to each referrer terminal 102-104
- the information notification terminal 106 is notified of the first status change (S1305 to S1307).
- the first state such as presence or absence of the information notification terminal 106 is set.
- Each of the referrer terminals 102 to 104 transmits a “200 OK” message (not shown) indicating that the NOTIFY message has been received to the server apparatus 100.
- each of the referrer terminals 102 to 104 displays the received first state information on the GUI of each referrer terminal 102 to 104, or performs a process corresponding to the state.
- the server apparatus 100 receives a PUB LISH message indicating that it has shifted to the away state from the referrer terminal 104 (SI 308).
- the server apparatus 100 transmits a “200 OK” message indicating that the PUB LISH message has been received to the reference terminal 104 (not shown), and updates the contents of the management unit 1001.
- the server apparatus 100 receives the PUBLISH message of the first state change from the information notification terminal 106 (S1309, S1313)
- the server apparatus 100 transmits a NOTIFY message to the reference terminals 102 and 103 that are present. (S1310, S1311, S1314, S1315), the NOTIFY message is not transmitted to the referee terminal 104 who is away (S1312, S1316).
- the referrer terminals 102 and 103 transmit a “200 OK” message indicating that the NOT IFY message has been received to the server apparatus 100 (not shown).
- the server apparatus 100 may discard the NOTIFY message that was not transmitted while away from the desk, or the state of the reference terminal 104 that has not transmitted the NOTIFY message as shown in FIG.
- it When it is received as a PUBLISH message (S1317) that the user has changed from being unattended to being in the presence state, it may be transmitted to the referrer terminal 104 (S1318).
- the server device 100 and the referrer terminal 104 that have received the PUBLISH message and NOTIFY message indicate that the PUBLISH message and the NOTIFY message have been received to the referrer terminal 104 and the server device 100, respectively. "Send message (not shown).
- the information notification terminal 106 should notify the first state change of the own device 106 together with the first notification information that is the first state of the own device 106. Since the second notification information in the state of the referrer terminals 102 to 104 is set in the body of the PUBLISH message, it is possible to suppress unnecessary traffic for the notification of the first state information change of the information communication terminal 106. Thus, it has the effect of reducing the load and reducing the power consumption. Also appropriate It is possible to notify the first notification information, which is the appropriate first status information, at an appropriate timing.
- the quality of the presence service can be improved.
- the configuration of the information notification system of this embodiment is the same as that shown in FIG. In FIG. 10, the server device 100 receives the number of status information notifications from the user device 105 and the information notification terminal 106 to the server device 100, or the status information notification from the server device 100 to the reference terminal 102. Each operation status is defined according to the number. As the operational state, for example, the processing load of the server apparatus 100 related to the notification of the state information and the processing of the notification information is defined.
- the management unit 1001 detects that the server device 100 is in an overload state, such as storing a large number of information notification transmission events, the state of the user device 105 or the information notification terminal 106 changes. Even if the information notification message must be transmitted to the reference terminal 102 by the information notification transmission unit 1004, the information notification transmission unit 1004 transmits the information notification message based on a predetermined condition.
- a part of the management unit 1001 constitutes an information management unit that controls transmission of notification information at the time of overload.
- the detection of the overload state by the server apparatus 100 may be performed according to a detection condition that is held by being set by the administrator of the server apparatus 100 or determined in advance.
- the detection condition may be the number of state change detections received by the management unit 1001 per unit time or the number of information notification messages stored in the information notification transmission unit 1004, but is not necessarily limited thereto. is not.
- FIG. 14 is a sequence diagram showing the operation of the information notification system in the seventh embodiment.
- the referrer terminals 102 to 104 are present, and a SUBSCRIBE message has already been transmitted as a notification request message to the information notification terminal 106 in advance.
- the information notification terminal 106 registers the state change as the first notification information in the server apparatus 100 by a PUBLISH message (S1401).
- the server device 100 sends a NOTI message as a status notification message.
- the FY message is transmitted to the referrer terminals 102 to 104 (S1402 to S1404).
- the first state such as presence or absence of the information notification terminal 106 is set.
- each of the referrer terminals 102 to 104 Upon receipt of the NOTIFY message, each of the referrer terminals 102 to 104 transmits a "200 OK" message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown), and also receives the received first The status information of 1 is displayed on the GUI of each referrer terminal 102 to 104, or processing corresponding to the status is performed.
- the management unit 1001 of the server apparatus 100 indicates "Released” as the second state list 750 of the referrer terminal that does not transmit the NOTIFY message when the operation state of the server apparatus 100 reaches a predetermined state. "In-seat” is preset. Further, the operation state of the server apparatus 100 that stops sending NOTIFY messages to the reference terminals 102 to 104 that are away from the seat is not limited to such a power that the load state of the server apparatus 100 can be considered. In the example of FIG. 14, the server apparatus 100 is defined as the operating state of the server apparatus that uses the overload state power / unpower for the above determination.
- the reference terminal 102 and 103 that were present are in the absence state, and PUBLISH message power indicating that is transmitted from the reference terminal 102 and 103 to the server apparatus 100 ( S 1405, S1406).
- server device 100 receives a PUBLISH message indicating a first state change of information communication terminal 106 (S1407).
- the first status change of the information notification terminal 106 is notified to all of the referrer terminals 102 to 104 by a NOTIFY message (S1408 to S1410).
- the referrer terminal 104 that has received the NOTIFY message sends the NOTIFY message to the server device 100.
- a “200 OK” message indicating that the message has been received is transmitted (not shown).
- the management unit 1001 of the server apparatus 100 may discard a powerful NOTIFY message that cannot be transmitted while the user is away from the desk. For example, as shown in FIG. When a PUBLISH message is received indicating that the status has changed from leaving to non-seating
- the NOTOIFY message is not transmitted to the management unit 1001 of the server 100. Since the NOTIFY message is not transmitted to the reference terminals 102 and 103 in the state registered as the second notification information, an unnecessary change notification of the first state information of the information communication terminal 106 is not transmitted. It becomes possible to control traffic and has the effect of reducing the load. In addition, it is possible to notify the appropriate notification information at an appropriate timing, which has the effect of improving the quality of the presence service.
- FIG. 15 is a block diagram showing an information notification system according to the eighth embodiment.
- the server apparatus 100 includes a management unit 1001, a notification request reception unit 1002, and a notification response transmission unit 1003. And an information notification transmission unit 1004.
- the server device 100 uses the management unit 1001 to manage the notification information such as the state of the user device 105 and the information notification terminal 106 and the transmission / reception timing thereof. It manages the degree of load of the server device 100 based on the number of changes and the number of user devices 105 and information notification terminals 106.
- referrer terminal 102 includes notification request transmitting section 1021, notification response receiving section 1022, and information notification receiving section 1023.
- the server device 100 of the present embodiment includes the number of status information notifications from the user device 105 and the information notification terminal 106 to the server device 100, or the server device 100 Each operation status is defined according to the number of status information notifications to the viewer terminal 102.
- the operational state for example, the processing load of the server device 100 related to the notification of the state information and the processing of the notification information is defined.
- the management unit 1001 detects that the server device 100 is overloaded, such as by accumulating a large number of information notification transmission events, the state of the user device 105 or the information notification terminal 106 changes. Even if the information notification message must be transmitted to the reference terminal 102 by the information notification transmission unit 1004, even if the information notification message is not immediately transmitted, the information notification message is not immediately transmitted, but is suspended for a predetermined time. After the elapse of time, it is sent again.
- a part of the management unit 1001 constitutes an information management unit that suspends transmission of notification information at the time of overload, or transmits notification information after a predetermined time.
- the detection of the overload state by the server apparatus 100 may be performed in accordance with a detection condition that is set by a manager of the server apparatus 100 or held in advance.
- the detection condition may be the number of state change detections received by the management unit 1001 per unit time or the number of information notification messages stored in the information notification transmission unit 1004, but is not necessarily limited thereto. is not.
- FIG. 16 is a sequence diagram showing an operation of the information notification system in the present embodiment.
- referrer terminals 102 and 103 transmit a SUBSCRIBE message as a notification request message to server apparatus 100 in advance (S1601, S1603).
- S1601, S1603 a state notification from the user apparatus 105 is set.
- the server apparatus 100 When the server apparatus 100 receives the SUBSCRIBE message, if it is an acceptable request, it transmits a “200 OK” message as a notification response message to the referrer terminals 102 and 103 (S1602, S1604).
- a state change such as leaving, for example, the user device 105 notifies the server device 100 of the state change by a PUBLISH message as an information notification message (S1605).
- the server device 100 Upon receiving this PUBLISH message, the server device 100 transmits a “200 OK” message to the user device 105 (S1606).
- the server device 100 transmits a NOTIFY message as an information notification message to the referrer terminals 102 and 103, respectively (S1607, S1609).
- the user's presence or absence status (in this embodiment, the absence status) managed by the user device 105 is set.
- 103 receives the NOTIFY message, and transmits the received indicating that a "200 OK" message to the respective server apparatus 100 (S 1608, S1610) o
- reference terminal 1 02, 103 displays the received status information on the display unit of the referrer terminals 102 and 103, or performs processing corresponding to the status.
- a PUBLISH message for a status notification indicating that a user managed by the user apparatus 105 is newly present from the user apparatus 105 for example. It is transmitted to the server apparatus 100 (S1611).
- the server apparatus 100 that has received the PUBLISH message detects that the server apparatus 100 is overloaded due to the detection condition, the server apparatus 100 transmits a “200 OK” message to the user apparatus 105 indicating that the PUBLISH message has been received. On the other hand, it transmits (S1612).
- the server device 100 does not immediately send a new information notification message corresponding to the received PUBLISH message to the reference terminal 102 or 103, and after interrupting the transmission for a specified time (ST), the server device 100 again issues a NOTIFY message. (S1613, S1615). Note that the server apparatus 100 may discard a new information notification message that has not been sent after the specified time is interrupted.
- the designated time (ST) may be a fixed value determined in advance by the administrator of the server apparatus 100, or may be determined by the following method, but is not limited to these methods. .
- the designated time (ST) for example, the number of messages stored in the information notification transmission unit 1004 of the server apparatus 100 is N, the processing time per message is T, and each reference terminal 102
- the specified time (ST) may be set to TX N + R, where R is a random waiting time for the transmission of the information notification message to 103 not synchronized.
- R is a random waiting time for the transmission of the information notification message to 103 not synchronized.
- the server device 100 has to send information notification messages to a large number of reference terminals 102 and 103, such as when there is a change in the status of multiple user devices 105, the load on the server device 100 is reduced over time. Smoothing and reducing the impact on the processing of other services.
- the processing time per message T force Even if it is several milliseconds, the number N of messages stored in the information notification transmission unit 1004 of the server apparatus 100 is an order of hundreds or thousands. Then it takes more than a few seconds to complete all of them. For this reason, when the server device 100 also serves as an Internet phone server device, the processing of the call request message received at this timing is delayed by several seconds, and the deterioration of the service quality as an Internet phone is ignored. become unable.
- the transmission timing of the information notification message to the reference terminals 102 and 103 is intentionally delayed so that an empty time is provided between the transmission of each information notification message. Therefore, the load on the server device 100 is smoothed in time, and the influence on the processing of other services can be reduced.
- each of the referrer terminals 102 and 103 that have received the NOTIFY message transmits a "200 OK" message indicating that the NOTI FY message has been received to the server device 100 (S1614, S1616) and as a NOTIFY message.
- the received information notification message is displayed on each display unit and the corresponding processing is executed.
- the message formats of the SUBSCRIBE message, the “200 OK” message for the SUBSCRIBE message, and the NOTIFY message are configured as shown in FIGS. 17 to 19, for example. .
- Request-URI (SUBSCRIBE sip: userl05 @ a. Com SIP / 2.0) is indicated. Further, the “200 OK” message corresponding thereto is expressed as shown in FIG. Further, the NOTIFY message responding to FIG. 17 indicates the state of the user 105 by the message body as shown in FIG.
- the server device 100 determines whether or not the server device 100 is in an overload state by monitoring the accumulation of information notification messages to the reference terminals 102, 103, etc.
- an information notification message is received from the user device 105 or the information notification terminal 106 according to the operation state, it is not immediately notified to the reference terminals 102 and 103. , And interrupted and notified again after a predetermined designated time (ST). Therefore, the server apparatus 100 according to the present embodiment intends to notify the reference terminals 102 and 103 when a large amount of state information is notified from the user apparatus 105 or the information notification terminal 106 in a short time. In particular, it can be delayed to the point where it does not matter.
- the server device 100 according to the present embodiment can temporally distribute the processing load of the server device 100, particularly the notification processing load to the reference terminals 102 and 103, and suppress the discard of the state notification. It becomes possible.
- each of the referrer terminals 102 and 103 does not need a function of interpreting the aggregated information notification message, and the conventional referer terminals 102 and 103 can be used as they are.
- FIG. 20 is a block diagram showing the configuration of the information notification system in the present embodiment.
- server apparatus 100 has information detection for detecting the type of information received from user apparatus 105 or information notification terminal 106 other than the configuration shown in FIG. If the server device 100 is overloaded and the transmission of the information notification message is suspended depending on the type of information detected by the information detecting unit 2001 and the information detecting unit 2001, how much time will elapse after that. And a designated time determination unit 2002 that determines whether to resume transmission!
- priorities such as “priority” and “normal” are set according to the type of received information, for example, presence information and location information. According to these priorities, the specified time until the ability to stop sending information notification messages is restarted.
- the server apparatus 100 receives a PUBLISH message from the user apparatus 105 or the information notification terminal 106, for example, a change in presence or a change in location, first, what kind of PUBLISH message is received?
- the information detection unit 2001 detects whether there is any information, and whether the information has a priority (“priority” or “normal”). As in the example shown in FIG. 21, when the priority is “priority” because the type of status information received is presence information, the server device 100 is overloaded as in the eighth embodiment. Determine whether the force is in a state.
- the server device 100 determines that the information notification message is referred to immediately or after a relatively short specified time even if it is temporarily stopped, which is determined by the specified time determination unit 2002. Send to terminals 102 and 103.
- the server apparatus 100 determines that the priority is “normal” because the type of received information is location information, the server apparatus 100 temporarily transmits an information notification message in an overload state. Cancel. Then, the server apparatus 100 transmits an information notification message to the reference terminals 102 and 103 after a relatively long designated time determined by the designated time determining unit 2002. Note that if there are three or more types of information or if the information is digitized (1.0-0.0.0) as a priority, the server device 100 delays transmission to the reference terminals 102 and 103. 3 types Of course, it is possible to make it more than a kind.
- a part of the management unit 1001, the information detection unit 2001, and the designated time determination unit 2002 constitute an information management unit.
- the server device 100 is in an overload state for a high-priority information notification message. Even if transmission is interrupted, it is possible to transmit to the reference terminal 102, 103 relatively early, which is effective.
- the specified time includes zero, and if it is zero, it means that the information notification message is sent immediately without being interrupted.
- information types presence information and location information are illustrated, but other types of information may be used, but are not limited to these.
- server apparatus 100 detects the type of information transmitted to referrer terminals 102 and 103 by information detection unit 2001 and refers to the detected information type.
- a designated time determination unit 2002 is provided for determining a designated time (arbitrary time including the mouth) until transmission to the viewer terminals 102 and 103 is temporarily suspended and power is restarted. For example, in the case of high-priority information, the information is transmitted to the reference terminals 102 and 103 immediately after a relatively short period of time after suspension or immediately without suspension. If the information is of a low type, the transmission to the reference terminals 102 and 103 can be temporarily interrupted and transmitted to the reference terminals 102 and 103 after a sufficient specified time has elapsed.
- the server device 100 can set the interruption time when the notification to the reference terminal 102, 103 is temporarily interrupted according to the type of information transmitted to the reference terminal 102, 103. It is. Therefore, for example, in the case of status information with a high priority, it is possible to notify the referrer terminals 102 and 103 early by shortening the interruption time. In addition, if the type of status information has a low priority, it is possible to notify the reference terminals 102 and 103 while extending the interruption time and enhancing the load distribution effect. Therefore, high-priority status information is superior while distributing the processing load of the server device 100 in time and suppressing discarding of status notifications. It is possible to notify early.
- each of the referrer terminals 102 and 103 does not need a function of interpreting the aggregated information notification message, and the conventional referer terminals 102 and 103 can be used as they are. Since the information notification message is not sent to the reference terminal 102, 103 in accordance with the timing of periodic status information update, if the notification to the reference terminal 102, 103 is delayed! Flower!/,.
- the connection to the reference terminals 102 and 103 is avoided.
- the notification processing load can be distributed over time, and the overall system configuration is not complicated and does not increase costs.
- the information notification system in the present embodiment is also conceptually configured as shown in FIG. 15 as in the eighth embodiment.
- a designated time determining unit 2002 similar to that in the ninth embodiment described in FIG. 20 is provided.
- the specified time determination unit 2002 determines how long it will resume when the server device 100 is overloaded and the transmission of the information notification message is suspended. Is determined according to the referrer terminals 102, 103, and 104.
- priorities such as “priority” and “normal” are set according to the reference terminal 102, 103, 104, respectively.
- the specified time from the interruption of transmission of the information notification message to the restart is determined by the information management unit composed of a part of the specified time determination unit and the management unit described above.
- the information notification transmission unit 1004 refers to the information notification message. Try to send to terminals 102, 103, 104. At that time, the information notification transmission unit 1004 refers to the priority set for each of the reference terminal 102, 103, 104, and the reference terminal 102, 103, 104 to be notified should be given priority. Determine whether or not. [0193] Further, similarly to the eighth embodiment, it is determined whether or not the server device 100 itself is in an overload state, and if it is in an overload state, transmission to the reference terminal 102, 103, 104 is performed.
- the specified time is set to be shorter as the priority is higher, for example, based on the priority determined according to the reference terminals 102, 103, and 104. For particularly expensive ones, the specified time may be set to zero and sent immediately without interruption.
- FIG. 22 shows an example in which priorities are individually set for the reference terminal 102, 103, 104.
- attribute information such as the user's title (department manager, section manager, employee) is set in the reference terminal 102, 103, 104, and the priority (department manager: ⁇ priority '', section manager: "Priority", employee: “Normal”) may be set.
- priority in addition to “priority” and “normal”, you can set several priorities such as “semi-priority” and specify the time corresponding to each priority! / ⁇ .
- the server device 100 moves to the reference terminal 102, 103, 104 according to the attribute information as described above of the reference terminal 102, 103, 104.
- the server device 100 may set a suspension time when the notification to the referrer terminals 102, 103, and 104 is suspended according to the attribute information of the referrer terminals 102, 103, and 104.
- the server device 100 may set a suspension time when the notification to the referrer terminals 102, 103, and 104 is suspended according to the attribute information of the referrer terminals 102, 103, and 104.
- the high-priority reference terminal 102 information is notified to the reference terminal 102 early by shortening the interruption time, and for the low-priority reference terminals 103, 104, for example. Accordingly, it is possible to notify the reference terminals 103 and 104 while extending the interruption time and enhancing the load distribution effect. For this reason, the processing load on the server device 100 is distributed over time and the discard of information notifications is suppressed, while the reference terminal 102 having a high priority is assigned.
- information can be notified preferentially early.
- the information notification system in the present embodiment is also conceptually configured as shown in FIG. 15 as in the eighth embodiment. However, in the present embodiment, in addition to the configuration shown in FIG. 15, how much time has elapsed after the server device 100 is overloaded and the transmission of the information notification message is suspended. In this case, a designated time determination unit 2002 is provided that determines whether transmission is resumed according to the user device 105 and the information notification terminals 106 and 107.
- the user apparatus 105 and the information notification terminals 106 and 107 have “priority”, “normal”, and “normal” according to their attribute information, respectively. ”Is set.
- the information management unit composed of a part of the specified time determination unit and the management unit described above determines the specified time from transmission interruption of information notification message to restart. .
- the server apparatus 100 receives the P UBLISH message from the user apparatus 105 or the information notification terminals 106 and 107 and detects that the state has changed, the information notification transmission unit 1004 refers to the information notification message as a referrer. Try to send to terminals 102, 103, 104. At that time, referring to the priority set in the user device 105 and the information notification terminals 106 and 107, the user device 105 and the information notification terminals 106 and 107, which are the notification sources of the information to be notified, should be given priority. It is determined whether or not. Further, as in the eighth embodiment, it is determined whether or not the server apparatus 100 is in an overload state.
- the transmission of information is temporarily interrupted and transmitted again after a specified time has elapsed.
- the designated time is set based on the priority, for example, the shorter the higher the priority is. For those with high priority, the specified time may be set to zero so that transmission is performed immediately without interruption.
- priorities are individually set for the user apparatus 105 and the information notification terminals 106 and 107.
- the administrator power of the server device 100, the user device 105 and the information notification terminals 106 and 107 respectively, for example, the title of the device or the user of the terminal (department manager, manager, employee) or the importance of the device or terminal Set attribute information such as degree
- the priority for each attribute information may be set separately.
- the referrer terminal 102 in accordance with the attribute information of the user apparatus 105 and the information notification terminals 106 and 107 that are information notification sources. It is possible to determine whether or not the notification to 103, 104 is temporarily interrupted. For example, in the case shown in FIG. 23, the information issued by the user device 105 having a high priority (“priority”) is immediately notified to the reference terminals 102, 103, and 104 without being temporarily interrupted. Information issued by low-level (“normal”) information notification terminals 106 and 107 can be notified to the reference terminals 102, 103, and 104 after being temporarily suspended. In addition, it is possible to immediately notify the status information issued by the user device 105 having a high priority while dispersing the processing load of the server device 100 in time and suppressing discarding of the information notification.
- the server apparatus 100 temporarily suspends the notification to the reference terminal 102, 103, 104 according to the attribute information of the user apparatus 105 or the information notification terminal 106, 107 that is the information notification source. It is possible to set an interruption time when For example, for information issued by the user device 105 having a high priority, the information is transmitted to the reference terminals 102, 103, and 104 early by shortening the interruption time, and the information notification terminals 106, 107 having a low priority are notified. The information issued by can be notified to the reference terminal 102, 103, 104 while increasing the load balancing effect by extending the interruption time. Therefore, it is possible to preferentially notify the status information issued by the user device 105 having a high priority while distributing the processing load of the server device 100 in time and suppressing discarding of the information notification. .
- FIG. 24 is a block diagram showing the configuration of the information notification system in the present embodiment.
- the information notification system in the present embodiment is also conceptually configured as shown in FIG. 15 as in the eighth embodiment.
- the server apparatus 100 includes an information integration unit 2003 that collectively transmits the received information notification messages to the reference terminals 102, 103, and 104, in addition to the configuration shown in FIG. That is, when the server apparatus 100 transmits the received information notification message to the reference terminals 102, 103, 104, the information notification transmission unit 1004 of the server apparatus 100 transmits the same reference terminal 10 that has stopped transmission at that time.
- the information processing unit 2003 further includes an information integration unit 2003 that collectively transmits them to the reference terminal 102, 103, and 104.
- the information integration unit 2003 is not necessarily provided in the information notification transmission unit 1004, but may be provided in the server device 100!
- FIG. 25 is a sequence diagram showing an operation of the information notification system in the present embodiment.
- the referrer terminals 102 and 103 wish to notify the server apparatus 100 of the status information of the user apparatus 105 as a notification request message in advance.
- the set SUBSCRIBE message has been sent (S2501, S2503).
- the server apparatus 100 When the server apparatus 100 receives the SUBSCRIBE message, if it is an acceptable request, the server apparatus 100 transmits a “200 OK” message as a notification response message to the referrer terminals 102 and 103 (S2502, S2504).
- the user device 105 When there is a state change, the user device 105 notifies the server device 100 of a state change such as leaving a seat by a PUBLISH message (S2505). Upon receiving this PUBLISH message, the server apparatus 100 transmits a '200 OK' message to the user apparatus 105 (S2506) Furthermore, the server apparatus 100 transmits an information notification message of the user managed by the user apparatus 105. A NOTIFY message in which a status such as presence or absence (separation in this embodiment) is set is transmitted to each of the reference terminals 102 and 103 (S2507, S2509).
- the referrer terminals 102 and 103 When the referrer terminals 102 and 103 receive the NOTIFY message, they transmit “200 OK” messages indicating that they have been received to the server apparatus 100 (S2508, S2510). In addition, the referrer terminals 102 and 103 display the received state information on the display devices of the referrer terminals 102 and 103 and perform processing corresponding to the state.
- a new PUBLISH message indicating that the location information has changed to a lobby is transmitted from the user apparatus 105 (S2511).
- the server apparatus 100 receives the PUBLISH message and detects that the server apparatus 100 is in an overload state due to the detection condition, the server apparatus 100 sends a “200 OK” message to the user apparatus 105 indicating the reception. Transmits (S2512).
- the server apparatus 100 does not immediately transmit a notification of new status information corresponding to the received PUBLISH message to the reference terminal 102 or 103, and interrupts transmission for a specified time (ST).
- the server device 100 interrupts the information notification to the reference terminals 102 and 103, and then sends a NOTIFY message to the reference terminals 102 and 103 when the specified time (ST) has elapsed. And however, in this case, since new information is received from the user device 105 during the interruption of information transmission, the management unit 1001 of the server device 100 recognizes that there is such information, and the information integration unit Collectively in 2003, for example, a NOTIFY message indicating that the presence information is present and the location information is lobby is transmitted to the reference terminal 102, 103 (2515, S2517).
- the server apparatus 100 transmits only the NOTIFY message indicating that the presence information is present to the referrer terminals 102 and 103 in steps S2515 and S2517. Thereafter, a message surrounded by a dotted line in FIG. 25, that is, a NOTIFY message (S2519, S2521) to the referrer terminals 102 and 103 indicating that the location information has been changed to the user device 105 is sent.
- a NOTIFY message S2519, S2521
- the “200 OK” message (S2520, S2522) from the referrer terminals 102 and 103 responding thereto to the server device 100, the force S, the existing force S, and in the present embodiment, these pieces of information enclosed by dotted lines are They are not actually transmitted, but are transmitted in the NOTIFY message (S2515, S2517), “200 OK,” and message (S2516, S2518) immediately before that.
- server apparatus 100 interrupts the information notification and notifies again after the designated time (ST), another notification terminal 102, 103 is notified.
- the information integration unit 2003 can collect them and send them in a batch. Therefore, the number of information notifications to be transmitted by the server apparatus 100 is reduced. The load on the server device 100 is reduced.
- other status information that is transmitted in an aggregated manner requires only a short interruption time, and the delay time until information notification can be shortened.
- the information notification system in the present embodiment is conceptually configured as shown in FIG. 15 as in the eighth embodiment.
- the server apparatus 100 and the reference terminal 102 in the present embodiment also have the same configuration as that in the eighth embodiment shown in the block diagram of FIG.
- the server apparatus 100 has a number of information notifications from the information notification terminal 106 to the server apparatus 100 or a number of notifications from the server apparatus 100 to the reference terminal 102.
- Each operational state is defined.
- the processing load of the server apparatus 100 related to the information notification processing is defined as the operation state.
- the server apparatus 100 must perform a large number of information notifications. It must be done.
- the management unit 1001 of the server apparatus 100 detects an overload state
- the information notification transmission unit 1004 specifies that the information notification is temporarily stopped and the designated time (ST) until the information notification is started again. An information notification including a value is transmitted to the reference terminal 102.
- the referrer terminal 102 that has received the information notification including the information that the information notification is to be temporarily stopped is again sent to the server apparatus 100 by the notification request transmission unit 1021 after the designated time specified therein has elapsed.
- a notification request is transmitted so as to notify the user 105 and the information notification terminal 106 of information such as the status.
- Conditions for detecting an overload state in the server apparatus 100 may be set in advance by an administrator of the server apparatus 100, or may be determined in advance by another method. In any case, the detection condition may be determined using the number of detections of state change received per unit time received by the management unit 1001, the number of information notifications accumulated in the information notification transmission unit 1004, etc. It is not necessarily limited to this.
- referrer terminals 102 and 103 transmit a SUBSCRIBE message in which information indicating that the state information of user 105 is desired is set in advance as a notification request message to server apparatus 100. (Not shown).
- the service The device 100 receives the SUBSCRIBE message and, if it is an acceptable request, transmits a “200 OK” message as a notification response message (not shown).
- the user apparatus 105 In this state, if there is a state change in the user apparatus 105, the user apparatus 105 notifies the server apparatus 100 of the state change by a PUBLISH message (S2601).
- the server device 100 receives the status change from the user device 105, the server device 100 sends, as an information notification message, a NOTIFY message in which status information such as the presence / absence of the user managed by the user device 105 is set as the reference terminal 102, 103 (S2602, S2603).
- the referrer terminals 102 and 103 When the referrer terminals 102 and 103 receive the NOTIFY message from the server apparatus 100, they transmit a “200 OK” message indicating that the NOTIFY message has been received to the Sano apparatus 100 (S2604, S2605). Based on the received NOTIFY message, the status information is displayed on the display of the referrer terminals 102 and 103, or processing corresponding to the status information is performed.
- a SUBSCRIBE message in which it is set to refer to the status information of the user apparatus 105 is transmitted to the server apparatus 100. (S2606).
- the server apparatus 100 determines whether it is an acceptable request, and if it is an acceptable request, transmits a “200 OK” message as a notification response message (S2607).
- a NO TIFY message in which the status information of the user apparatus 105 is set at that time is transmitted to the referrer terminal 104 (S2608).
- the referrer terminal 104 transmits a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100 (S2609).
- the state change is transmitted from the user device 105 to the server device 100 as a PUBLISH message (S2610, S2611).
- the server apparatus 100 transmits a NOTIFY message as an information notification message to the reference terminals 102, 103, and 104 (S2612 to 2614).
- the server apparatus 100 that has received the PUBLISH message transmits a “200 OK” message indicating that the PUBLISH message has been received to the user apparatus 105, and has received the NOTIFY message.
- Each of the user terminals 102, 103, and 104 Send a "200 OK" message indicating that a NOTIFY message has been received.
- the server apparatus 100 is overloaded. Is detected. In this case, the remaining NOTIFY messages are subsequently transmitted to the reference terminal 102, 103, 104 (S2615, S2616, S2617).
- this NOTIFY message includes a “Subscription—State” header and a “retry—after” parameter, and the “Subscription—State” header is set to “terminated” as shown in Figure 27.
- the reference terminals 102, 103, and 104 are notified of the release of the subscription (Subscription).
- a desired value is set as a waiting time until the server apparatus 100 re-establishes the subscription.
- the waiting time before re-establishing the Subscription can be set arbitrarily, but can also be set as follows.
- the server apparatus 100 sets a waiting time “retry—after” until re-establishing the Su bscription
- the server apparatus 100 transmits the NOTIFY message in which the waiting time is set in this way to the reference terminal 102, 103, 104 (S2615, S2616, S2617). Although not shown, the referrer terminals 102, 103, 104 transmit a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100. In that state, wait for the time specified by "retry—after".
- the reference terminal 102, 103, 104 transmits a SUBSCRIBE message to the server device 100 after the specified time (ST) set in "retry-after” has elapsed (S2620, S2622, S2624) .
- the server apparatus 100 that has received the SUBSCRIBE message transmits a “200 OK” message indicating that the SUBSCRIBE message has been received to each of the referrer terminals 102, 103, and 104.
- a NOTIFY message in which the state of the user apparatus 105 managed at that time is set is transmitted to each of the reference terminals 102, 103, 104 (S2621, S2623, S2625).
- the referrer terminals 102, 103, and 104 transmit a “200 OK” message indicating that the NOTIFY message has been received to the server apparatus 100, which is not shown.
- the state of the user apparatus 105 is changed until the time specified by the reference terminal 102, 103, 104 force “retry-after” elapses. It is possible to explicitly recognize that no notification is made even if there is, and avoid a situation in which a notification of a state change is discarded without any notification to the reference terminal 102, 103, 104 due to an overload of the server device 100. Can do.
- the value set to "retry-after" does not always need to be a constant value.
- the degree of overload may be If it is relatively mild, it may be set to a relatively small value, and if it is severe, it may be set to a relatively large value. In this way, when the degree of overload is mild, information notification can be resumed relatively quickly, and when severe, information notification can be resumed with sufficient time. Therefore, it is possible to optimize the balance between the load reduction effect of the server apparatus 100 and the real time property of information notification.
- FIG. 27 shows a NOTIFY message (S2615, S2616, S2616, requesting temporary release of Subscription to be transmitted to the reference terminal 102, 103, 104 in a state where the server device 100 detects an overload as described above. It is a figure which shows an example of the message format of S2617).
- “Subscription — State” is set to “terminated” and “retry—after” is set to 5 milliseconds.
- “probation” as the “reason” parameter.
- the state of the user device 105 is indicated in the message body!
- server device 100 when server device 100 detects an overload state, information notification to referrer terminals 102, 103, and 104 is temporarily suspended. It is possible to reduce the burst load when receiving a PUBLISH message.
- the server device 100 detects an overload state based on the number of information notifications from the information notification terminal 106 and the user device 105 or the number of notifications to the reference terminals 102, 103, and 104. ing. Therefore, if they exceed the predetermined number, an overload condition occurs, and information notification to the referrer terminals 102, 103, 104 is temporarily suspended, so information notification is suspended according to these numbers. As a result, the load on the server apparatus 100 is reduced.
- the specified time until the information notification is temporarily suspended and the force is resumed is set to a predetermined value according to the load level of the server device 100, the information is relatively early when the load is light. Notification can be resumed, and only when it is severe, sufficient time can be taken to reduce the load, enabling efficient information notification.
- the present embodiment is the same as the thirteenth embodiment, but when the server device 100 detects an overload state, the type of notification information to be transmitted to the reference terminal 102, 103, 104 (importance, urgency, Whether to suspend information notification to the referrer terminals 102, 103, and 104 is determined according to characteristics such as immediacy.
- the information When the information notification terminal 106 has two states, state A and state B, when the server apparatus 100 detects an overload state, the notification information transmitted to the reference terminal 102, 103, 104 is the information notification terminal 106. Information notification is suspended only when the information is related to status B.
- FIG. 28 is a sequence diagram showing the operation of the information notification system in the present embodiment.
- referrer terminal 102 transmits to server apparatus 100 a SUBSCR IBE message indicating that information notification regarding state A possessed by information notification terminal 106 is desired. (S2801). On the other hand, it is assumed that the referrer terminals 103 and 104 transmit a SUBSC RIBE message to the server apparatus 100 indicating that the information notification regarding the state B of the information notification terminal 106 is desired (S2803 and S2805).
- the server apparatus 100 Upon receiving the SUBSCRIBE message, the server apparatus 100 determines whether it is an acceptable request, and if it is an acceptable request, the server apparatus 100 sends a "200 OK" message as a notification response message. , 103, 104 (not shown)
- the referrer terminals 102, 103, and 104 Upon receiving the NOTIFY message, the referrer terminals 102, 103, and 104 transmit a "200 OK" message indicating that the NOTIFY message has been received to the server apparatus 100 (not shown). Then, the reference terminal 102, 103, 104 displays the received status information on the display of the reference terminal 102, 103, 104, or executes processing corresponding to the status information.
- the server device 100 receives the PUBLISH message.
- a “200 OK” message is sent to the information notification terminal 106 (not shown).
- the server apparatus 100 detects an overload state, the server apparatus 100 detects a predetermined specific condition only for a reference terminal that requests information notification in a predetermined state. Send NOTIFY message and send normal NO TIFY message to other referrer terminals. For example, when the predetermined state is state B, the referrer terminals that request information notification of the state B are the referrer terminals 103 and 104.
- the NOTIFY message includes a “Subscription—State” header and a “retry—after” parameter.
- “terminated” is set in the “Subscript-State” header, and the reference terminals 103 and 104 are notified of the release of the subscription.
- the “retry—after” parameter a desired value is set as a waiting time until the server apparatus 100 re-establishes Subscription.
- the reference terminal 103 or 104 that has received this NOTIFY message transmits a "200 OK" message to the server apparatus 100 (not shown), and has the specified time specified by the "retry-after” parameter. Wait for progress.
- the server apparatus 100 continues to maintain the subscription while the reference terminals 103 and 104 release the Subscription, and the server apparatus 100 A NOTIFY message is sent to the referrer terminal 102 every time the state A changes (S2812, S2815) (S2813, S2816).
- the referrer terminals 103 and 104 transmit a SUBSCRIBE message to the server device 100 after the time set in "retry-after" has elapsed (S2818, S2820).
- the server apparatus 100 that has received the SUBSCRIBE message transmits a “200 OK” message (not shown) to the reference terminals 103 and 104, and then changes the state B of the information notification terminal 106 managed at that time.
- the set NOTIFY message is transmitted to each of the referrer terminals 103 and 104 (S 2819 and S2821).
- the referrer terminals 103 and 104 transmit a “200 OK” message indicating that the message has been received to the server apparatus 100 (not shown).
- the referrer terminals 103 and 104 explicitly recognize that no notification is made even if the state of the information notification terminal 106 changes until the time specified by "retry—after" elapses. Therefore, it is possible to avoid a situation in which the state change notification is discarded without any notification to the reference terminal 103 or 104 due to an overload of the server device 100.
- the administrator of the server device 100 sets a state in which the subscription is released and released, and a state in which the subscription is maintained without being released, or is determined in advance. These can be held in the server device 100.
- the server device 100 by classifying and defining the information according to the importance and immediacy of the information managed by the server device 100, when the server device 100 becomes overloaded, the load on the server device 100 is reduced. However, it is possible to continue information notification for important status information and status information that requires immediacy, and improve the quality of service without degrading the service quality of information notification.
- the server device 100 when the server device 100 detects an overload state and releases and releases a subscription, the server device 100 determines "retry-after" according to the importance and immediacy of each state managed by the server device 100. It is also possible to set the value to be set smaller, for example, the higher the importance or immediacy. In this way, the information notification can be resumed faster as the importance level and immediacy are greater, and it becomes possible to balance the load on the server device 100 and the real-time information notification.
- the configuration is the same as in the thirteenth embodiment.
- the server device 100 detects an overload state, the information notification is suspended temporarily according to the attributes of the reference terminal 102, 103, 104. Try to decide whether or not to do. In other words, the information notification is temporarily suspended for the reference terminals 103 and 104, and the information notification is performed for the reference terminal 102 by not interrupting the information notification! .
- FIG. 29 is a sequence diagram showing an operation of the information notification system according to the present embodiment.
- the content indicating that information notification such as status information of the user device 105 is desired as the notification request message to each of the referrer terminals 102, 103, and 104 is indicated.
- the set SUBSCRIBE message is transmitted (S2901, S2903, S2905).
- server apparatus 100 that has received the SUBSCRIBE message determines whether or not the request set in the SUBSCRIBE message is an acceptable request. If the request is acceptable, a “200 OK” message is transmitted as a notification response message to each of the reference terminals 102, 103, and 104 (not shown).
- the server apparatus 100 that has received the SUBSCRIBE message transmits a NOTIFY message in which information such as the status information of the user apparatus 105 is set at that time to the referrer terminals 102, 103, and 104, 2902, S2904, and S2906) .
- the reference terminal 102, 103, 104 receives the transmitted NOTIFY message and transmits a “200 OK” message indicating that it has been received to the server apparatus 100 (not shown).
- the state change of the user device 105 is notified to the server device 100 from the user device 105 to the server device 100 as a PUBLISH message (S2907, S2908).
- the server device 100 sends a NOTIFY message in which the status information such as the presence or absence of the user device 105 is set as the information notification message to the reference terminals 102, 103, Sent to 104 (S29 09, S2910, S2911).
- the reference terminal 102, 103, 104 transmits a “200 OK” message indicating that the NOTIFY message has been received to the server device 100 (not shown), and based on the received NOTIFY message, status information of the user device 105 Etc. are displayed on the display, and processing corresponding to the status information is executed.
- the server device 100 detects an overload state, the subscription is temporarily released only to a predetermined reference terminal, for example, the reference terminals 103 and 104, and a preset designated time is set. After that, send NOTIFY message to establish Subscription again.
- the server apparatus 100 transmits a NOTIFY message in which status information such as the presence / absence of the user apparatus 105 is set to the reference terminal 102 as before (S2912).
- the server device 100 temporarily releases the subscription to the reference terminals 103 and 104, and transmits a NOTIFY message for establishing a subscription again after the preset designated time has elapsed (S2913, S2914).
- the NOTIFY message includes a "Subscription-State” header and a "retry-after” parameter.
- the NOTIFY message for temporarily releasing the subscription and re-establishing the subscription after the preset specified time set “terminated” in the “Subscription—State” header and set the subscription to the referrer terminals 103 and 104. It is instructed to release temporarily.
- a desired specified time is set as a waiting time until the server apparatus 100 establishes the subscription again!
- the referrer terminals 103 and 104 that received the NOTIFY message send a "200 OK" message (not shown) to the effect that the NOTIFY message has been received to the server device 100, and set in "retry-after” Wait for the specified time.
- the server device 100 has a state change in the user device 105 until the specified time set by “retry—after” elapses, and the user device 105 notifies the PUBLISH message to notify the state change ( S2915, S2916).
- the information is not notified to the reference terminals 103 and 104 that are releasing the subscription, and the information is notified only to the reference terminals 102 that are not releasing the subscription (S2917, S2918).
- the server device 100 When the server device 100 is overloaded, it is up to the administrator of the server device 100 to decide which of the reference terminals 102, 103, 104 should be temporarily released. It can be set or determined in advance and stored in the server apparatus 100.
- a SUBSCRIBE message is transmitted to the device 100 (S2919, S2921).
- the server apparatus 100 that has received the SUBS CRIBE message transmits a “200 OK” message (not shown) indicating that the SUBSCRIBE message has been received to the reference terminals 103 and 104, and then the state of the user apparatus 105 at that time.
- a NOTIFY message in which is set is transmitted to the referrer terminals 103, 104 (S2920, S2922).
- the referrer terminals 103 and 104 When the referrer terminals 103 and 104 receive the NOTIFY message from the server apparatus 100, they transmit a "200 OK" message (not shown) indicating that the NOTIFY message has been received to the server apparatus 100, and receive the NOTIFY message. Based on the message, the status information of the user device 105 is displayed on the display, or an operation corresponding to the status information is executed.
- the referrer terminals 103 and 104 explicitly recognize that the information notification is not made even if the state of the user apparatus 105 changes until the specified time set by "retry-after" elapses. be able to. For this reason, even if the server apparatus 100 is overloaded, it is possible to avoid a situation in which the notification of the state change is discarded without any notification to the reference terminals 103 and 104.
- the server apparatus 100 determines whether or not the server apparatus 100 continues and maintains the key to release and release the information notification subscription according to the priority and importance of the referrer terminals 102, 103, and 104, and the required immediacy. Can be selectively controlled. For this reason, the server device 100 can continue the information notification to the reference terminal (in this case, the reference terminal 102) or the like that is important to receive the information notification while reducing the load. Service quality deterioration of information notification can be prevented.
- the server device 100 detects the overload state and releases the subscription according to the immediacy and importance required by the reference terminal 102, 103, 104 when the subscription is released. It is also possible to control the value set for retry—after ”. As a result, it is possible to achieve a balance between the load reduction effect of the server device 100 and the real-time state information notification.
- the value to be set for “retry—after” for each referrer terminal can be arbitrarily set by the administrator of the server device 100, or can be set in advance. Just keep it in device 100.
- the type of information received from the user device 105 or the information notification terminal 106, the type of information transmitted to the reference terminal 102, 103, 104, the reference terminal Priorities are individually set for the attribute information of 102, 103, 104, the attribute information of the user device 105 and the information notification terminals 106, 107, and the like.
- the information transmission interruption time is set according to the priority, or when another information for the same reference terminal 102, 103, 104 is received during the interruption. It is configured separately to send the other information together as suspended information.
- these structures are appropriately combined with two, three, or more, their effects can be increased accordingly.
- the present invention accurately refers to the information from the user device or the information notification terminal without causing delay or discarding and even when a large load is applied to the device main body. This is useful for server devices, information notification systems, information notification methods, etc. that notify status changes such as presence services.
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
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JP2007526851A JP4535129B2 (ja) | 2005-04-14 | 2006-04-14 | サーバ装置、情報通知方法、および情報通知システム |
US11/910,499 US8341261B2 (en) | 2005-04-14 | 2006-04-14 | Server device, information report method, and information report system |
Applications Claiming Priority (8)
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JP2005-116882 | 2005-04-14 | ||
JP2005-116881 | 2005-04-14 | ||
JP2005116882 | 2005-04-14 | ||
JP2005116881 | 2005-04-14 | ||
JP2005132011 | 2005-04-28 | ||
JP2005-132011 | 2005-04-28 | ||
JP2005-146266 | 2005-05-19 | ||
JP2005146266 | 2005-05-19 |
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WO2006112381A1 true WO2006112381A1 (ja) | 2006-10-26 |
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PCT/JP2006/307912 WO2006112381A1 (ja) | 2005-04-14 | 2006-04-14 | サーバ装置、情報通知方法、および情報通知システム |
Country Status (3)
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US (1) | US8341261B2 (ja) |
JP (1) | JP4535129B2 (ja) |
WO (1) | WO2006112381A1 (ja) |
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Also Published As
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JP4535129B2 (ja) | 2010-09-01 |
US8341261B2 (en) | 2012-12-25 |
US20090070458A1 (en) | 2009-03-12 |
JPWO2006112381A1 (ja) | 2008-12-11 |
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