JP2004240821A - Presence service system, presence server, and presence server program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To transform the presence format of presence information delivered from a requesting destination terminal to presence information of the presence format of a requester terminal. <P>SOLUTION: A presence information receiving part 14 fetches, on receipt of presence information from a presentity 4, the terminal model of the requester terminal from a terminal identifier/terminal model correspondence database 12, and instructs the transformation of the presence information to a presence format transformation part 15. The presence format transformation part 15 retrieves a presence format table 16 and fetches the corresponding presence format to transform the presence information. The presence information receiving part 14 then instructs a presence information transmission part 17 to transmit the resulting presence information to the requester terminal. The presence information transmission part 17 retrieves a terminal request storage part 13 to fetch the corresponding requester terminal identifier, and transmits the presence information to the terminal of the requester terminal identifier. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a presence service system, a presence server, and a presence server program, and more particularly, to a presence service system, a presence server, and a presence server program that implement a presence service.
[0002]
[Prior art]
In recent years, an instant message / presence service using the Internet or a mobile phone network has begun to spread. By using the presence service, a user can know the presence status of another user in real time.
[0003]
In the presence service system currently in the world, a user has a terminal corresponding to the presence service, and inputs his / her own presence information (at present, away, taking in, going out, etc.) to this terminal. This presence information is distributed to terminals corresponding to the presence services of other users. Thus, a user of the presence service can obtain presence information of another user.
[0004]
There are various implementations of the current presence service system in the world, and they notify presence information in different presence formats and presence protocols. Therefore, the presence information cannot be exchanged between implementations having different presence formats and presence protocols of the presence information.
[0005]
As a conventional technique, there is a terminal that can simultaneously handle presence information of a plurality of types of presence formats and presence protocols (for example, see Non-Patent Document 1).
[0006]
[Non-patent document 1]
Network Working Group, Request for Comments: 2778 (http://www.sit.wlv.ac.uk/rfc/rfc27xx/RFC2778.html)
[0007]
[Problems to be solved by the invention]
However, the conventional method of realizing the presence service system has a problem in that it is necessary to provide a function capable of interpreting the presence format of a plurality of types of presence information and a present protocol to each terminal implementation. The reason is that presence information cannot be exchanged between terminals having different presence formats and presence protocols. Therefore, in order to support a plurality of different presence formats and presence protocols, plural types of presence formats and presence protocols are interpreted / generated. This is because a mechanism for performing this is implemented in the terminal.
[0008]
A first object of the present invention is to provide a presence service system, a presence server, and a presence server, which convert the presence format of presence information distributed from a presentity serving as a request destination terminal into presence information in the presence format of a watcher serving as a request source terminal. To provide a server program.
[0009]
A second object of the present invention is not only to convert the presence format according to the requesting terminal, but also to use other communication means such as an instant message even when the requesting terminal does not have a function of interpreting presence information. An object of the present invention is to provide a presence service system for notifying presence information, a presence server, and a presence server program.
[0010]
Further, a third object of the present invention is to provide a presence service system for converting a presence format and a presence protocol of presence information distributed from a presentity as a request destination terminal into a presence format and a presence protocol of a watcher as a request source terminal. , A presence server and a presence server program.
[0011]
Still another object of the present invention is to convert not only the presence format and the presence protocol according to the requesting terminal but also other communication such as an instant message even when the requesting terminal does not have a function of interpreting the presence information. An object of the present invention is to provide a presence service system, a presence server, and a presence server program for notifying presence information by using means.
[0012]
[Means for Solving the Problems]
The presence service system of the present invention includes a watcher that issues a presence information request, a presentity that distributes presence information, a presence information request from a watcher, and a terminal identifier and a terminal model in a terminal identifier / terminal model correspondence database. A presence information request transmitting / receiving unit for registering and storing the request destination terminal identifier and the request source terminal identifier in the terminal request storage unit and transferring the presence information request to the presentity, receiving the terminal identifier and the terminal model from the presentity; A presence information receiving unit that registers in the terminal identifier / terminal model correspondence database and receives presence information from the presentity, and presents presence information in the presence format of the presentity model received by the presence information receiving unit. A presence format conversion unit for converting the presence format converted by the presence format conversion unit into presence information in a presence format of the watcher model by referring to the format table, and using the presence identifier as a request destination terminal identifier with the terminal identifier of the presentity A presence server including a presence information transmitting unit that searches the terminal request storage unit and transmits the retrieved information to a watcher of a requesting terminal identifier.
[0013]
Further, the presence service system of the present invention includes a watcher that issues a presence information request, a presentity that distributes presence information, and a presence information request received from a watcher, and a terminal identifier and a terminal model corresponding to the terminal identifier and the terminal model. A presence information request transmission / reception unit that registers the request destination terminal identifier and the request source terminal identifier in the terminal request storage unit and transfers the presence information request to the presentity, and receives the terminal identifier and the terminal model from the presentity. The presence information receiving unit receives the presence information from the presentity, and registers the presence information of the presentity model received by the presence information receiving unit. A presence format conversion unit for converting the presence format converted by the presence format conversion unit into presence information in the presence format of the watcher model with reference to the presence format table, and using the terminal identifier of the presentity as a request destination terminal identifier A presence information transmitting unit that searches the terminal request storage unit and transmits the same to the watcher of the requesting terminal identifier, and converts a difference in presence information whose presence format has been converted by the presence format conversion unit into an instant message packet in a readable format; The instant message conversion unit, and the instant message packet converted by the instant message conversion unit are searched in the terminal request storage unit using the terminal identifier of the presentity as the request destination terminal identifier. And having a presence server having an instant message transmission unit for transmitting to the watcher of Motomemoto terminal identifier.
[0014]
Further, the presence service system of the present invention receives a plurality of types of watchers that issue presence information requests using presence protocols that may be different, presentities that distribute presence information, and receives presence information requests from watchers for each presence protocol. The terminal identifier and the terminal model are registered in the terminal identifier / terminal model correspondence database, and the request destination terminal identifier and the request source terminal identifier are stored in the terminal request storage unit to transfer the presence information request to the presentity. The presence information request transmission / reception unit receives the terminal identifier and the terminal model from the presentity, registers them in the terminal identifier / terminal model correspondence database, and refers to the terminal model / presence protocol correspondence table using the terminal model as a key to make a presentation. A presence information receiving unit that obtains a protocol and receives presence information from the presentity; a presence information of the presence format of the presentity model received by the presence information receiving unit; and a presence format of the watcher model by referring to the presence format table. A presence format conversion unit for converting the presence format converted by the presence format conversion unit into the presence information, and searching the terminal request storage unit using the terminal identifier of the presentity as the request destination terminal as a key. And a presence server including a plurality of types of presence information transmitting units for extracting a request source terminal identifier and transmitting the request source terminal identifier to a watcher of the request source terminal identifier for each presence protocol.
[0015]
Still further, the presence service system of the present invention provides a plurality of types of watchers that issue presence information requests using presence protocols that may be different, presentities that distribute presence information, and presence information requests from watchers for each presence protocol. Receive and register the terminal identifier and terminal model in the terminal identifier / terminal model correspondence database, save the request destination terminal identifier and request source terminal identifier in the terminal request storage unit, and transfer the presence information request to the presentity. The presence information request transmission / reception unit receives the terminal identifier and the terminal model from the presentity, registers the terminal identifier and the terminal model in the terminal identifier / terminal model correspondence database, and refers to the terminal model / presence protocol correspondence table using the terminal model as a key. A presence information receiving unit that obtains a presence protocol and receives presence information from the presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to the presence format table to determine the presence of the watcher model. And a presence format conversion unit for converting the presence information converted by the presence format conversion unit into presence information in a format of presence information, and searching the terminal request storage unit using the terminal identifier of the presentity as the request destination terminal as a key. A plurality of types of presence information transmitting units for extracting a requesting terminal identifier and transmitting the same to a watcher of the requesting terminal identifier for each presence protocol, and allowing a difference between presence information whose presence format has been converted by the presence format converting unit. An instant message conversion unit for converting the instant message packet into a format having an operable format, and searching the terminal request storage unit for the instant message packet converted by the instant message conversion unit using the terminal identifier of the presentity as a request destination terminal identifier. And a presence server having an instant message transmitting unit for transmitting the request message to the watcher of the requesting terminal identifier.
[0016]
On the other hand, the presence server of the present invention relates to a presence format table for storing sets of terminal models and presence formats, a terminal identifier / terminal model correspondence database for storing sets of terminal identifiers and terminal models, and a presence information request from a watcher. A terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier, and receiving a presence information request from a watcher, registering the terminal identifier and the terminal model in the terminal identifier / terminal model correspondence database, and a request destination terminal identifier And a presence information request transmission / reception unit for storing the request source terminal identifier in the terminal request storage unit and transferring the presence information request to the presentity, and receiving the terminal identifier and the terminal model from the presentity and receiving the terminal identifier / terminal model. Register in the model support database A presence information receiving unit for receiving presence information from a presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to as the presence format of the watcher model by referring to the presence format table. A presence format converter for converting information into information; and the presence information whose presence format has been converted by the presence format converter, searching the terminal request storage unit using the terminal identifier of the presentity as a request destination terminal identifier, and searching for the request source terminal identifier. And a presence information transmitting unit for transmitting to the watcher.
[0017]
Further, the presence server of the present invention relates to a presence format table for storing sets of terminal models and presence formats, a terminal identifier / terminal model correspondence database for storing sets of terminal identifiers and terminal models, and a presence information request from a watcher. A terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier, and receiving a presence information request from a watcher, registering the terminal identifier and the terminal model in the terminal identifier / terminal model correspondence database, and a request destination terminal identifier And a presence information request transmission / reception unit for storing the request source terminal identifier in the terminal request storage unit and transferring the presence information request to the presentity, and receiving the terminal identifier and the terminal model from the presentity and receiving the terminal identifier / terminal model. Register in the model support database A presence information receiving unit that receives presence information from a presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to as the presence format of the watcher model by referring to the presence format table. A presence format conversion unit that converts the presence information into presence information; and the presence information whose presence format has been converted by the presence format conversion unit. The request source terminal searches the terminal request storage unit using the terminal identifier of the presentity as the request destination terminal identifier. A presence information transmitting unit for transmitting to an identifier watcher, and an instant message for converting a difference between the presence information whose presence format has been converted by the presence format converting unit into an instant message packet having a readable format. A conversion unit for transmitting the instant message packet converted by the instant message conversion unit to the watcher of the request source terminal identifier by searching the terminal request storage unit using the terminal identifier of the presentity as a request destination terminal identifier; And a unit.
[0018]
Further, the presence server of the present invention includes a presence format table storing sets of terminal models and presence formats, a terminal model / presence protocol correspondence table holding sets of terminal models and presence protocols, and a set of terminal identifiers and terminal models. A terminal identifier / terminal model correspondence database that stores the request information, a terminal request storage unit that stores a request destination terminal identifier and a request source terminal identifier related to the presence information request from the watcher, and receives the presence information request from the watcher for each presence protocol. A terminal identifier and a terminal model are registered in the terminal identifier / terminal model correspondence database, and a request destination terminal identifier and a request source terminal identifier are stored in the terminal request storage unit, and the presence information request is transferred to the presentity. No The presence information request transmission / reception unit, and receives the terminal identifier and the terminal model from the presentity and registers them in the terminal identifier / terminal model correspondence database, and refers to the terminal model / presence protocol correspondence table using the terminal model as a key. A presence information receiving unit that obtains a presence protocol and receives presence information from a presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to the presence format table to determine the presence format of the watcher model. A presence format conversion unit that converts presence information into presence information in a presence format; and the terminal request storage unit that stores the presence information whose presence format has been converted by the presence format conversion unit using a terminal identifier of a presentity as a request destination terminal as a key. Characterized in that it comprises a plurality of types of presence information transmitting unit for transmitting each presence protocol watcher of the request source terminal identifier removed search to the requesting terminal identifier.
[0019]
Furthermore, the presence server of the present invention includes a presence format table storing sets of terminal models and presence formats, a terminal model / presence protocol correspondence table storing sets of terminal models and presence protocols, and a terminal identifier and a terminal model. A terminal identifier / terminal model correspondence database for storing sets, a terminal request storage unit for storing request destination terminal identifiers and request source terminal identifiers related to presence information requests from watchers, and receiving presence information requests from watchers for each presence protocol. Registering the terminal identifier and the terminal model in the terminal identifier / terminal model correspondence database, storing the request destination terminal identifier and the request source terminal identifier in the terminal request storage unit, and transferring the presence information request to the presentity. type Presence information request transmission / reception unit, receives the terminal identifier and terminal model from the presentity, registers it in the terminal identifier / terminal model correspondence database, and refers to the terminal model / presence protocol correspondence table with the terminal model as a key. A presence information receiving unit that obtains a presence protocol and receives presence information from a presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to the presence format table to determine the presence format of the watcher model. A presence format conversion unit that converts presence information in the presence format into presence information in the presence format; and storing the presence information whose presence format has been converted by the presence format conversion unit using the terminal identifier of the presentity that is the request destination terminal as a key. And a plurality of types of presence information transmitting units for extracting the requesting terminal identifiers and transmitting them to the watcher of the requesting terminal identifiers for each presence protocol, and determining the difference between the presence information whose presence format has been converted by the presence format converting unit. An instant message converter for converting the instant message packet into a readable format instant message packet; and searching the instant message packet converted by the instant message converter for the terminal request storage unit using the terminal identifier of the presentity as a request destination terminal identifier. And an instant message transmitting unit for transmitting to the watcher of the request source terminal identifier.
[0020]
On the other hand, the presence server program of the present invention stores a computer in a presence format table that stores sets of terminal models and presence formats, a terminal identifier / terminal model correspondence database that stores sets of terminal identifiers and terminal models, and a watcher. A terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier relating to the presence information request, and receiving the presence information request from the watcher to register the terminal identifier and the terminal model in the terminal identifier / terminal model correspondence database; A presence information request transmission / reception unit that stores a request destination terminal identifier and a request source terminal identifier in the terminal request storage unit and transfers the presence information request to a presentity, and receives a terminal identifier and a terminal model from the presentity, and Terminal identifier / terminal A presence information receiving unit that registers in the type correspondence database and receives presence information from the presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to by the presence format table with reference to the presence format table. A presence format converter for converting the presence format of the model into presence information of the model, and the presence information whose presence format has been converted by the presence format converter, and searching the terminal request storage unit using the terminal identifier of the presentity as the request destination terminal identifier. And function as a presence information transmitting unit for transmitting to the watcher of the requesting terminal identifier.
[0021]
Further, the presence server program of the present invention includes a computer for storing a presence format table storing sets of terminal models and presence formats, a terminal identifier / terminal model correspondence database storing a set of terminal identifiers and terminal models, and a watcher. A terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier relating to the presence information request, and receiving the presence information request from the watcher to register the terminal identifier and the terminal model in the terminal identifier / terminal model correspondence database; A presence information request transmission / reception unit that stores a request destination terminal identifier and a request source terminal identifier in the terminal request storage unit and transfers the presence information request to a presentity, and receives a terminal identifier and a terminal model from the presentity, and Terminal identifier / terminal The presence information receiving unit for registering in the type correspondence database and receiving the presence information from the presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to the presence format table. A presence format conversion unit that converts presence information of the presence format of the watcher model; and the presence information whose presence format has been converted by the presence format conversion unit; and the terminal request storage unit using the terminal identifier of the presentity as a request destination terminal identifier. A presence information transmitting unit for searching and transmitting to the watcher of the requesting terminal identifier, and converting a difference between the presence information whose presence format has been converted by the presence format converting unit into an instant message packet having a readable format. An instant message conversion unit that transmits the instant message packet converted by the instant message conversion unit to the watcher of the request source terminal identifier by searching the terminal request storage unit using the terminal identifier of the presentity as the request destination terminal identifier. It is characterized by functioning as an instant message transmitting unit.
[0022]
Further, the presence server program according to the present invention includes a computer, a presence format table storing sets of terminal models and presence formats, a terminal model / presence protocol correspondence table holding sets of terminal models and presence protocols, a terminal identifier and A terminal identifier / terminal model correspondence database for storing sets of terminal models, a terminal request storage unit for storing request destination terminal identifiers and request source terminal identifiers for presence information requests from watchers, and a presence protocol for watcher presence information requests. The terminal information and the terminal model are received and registered in the terminal identifier / terminal model correspondence database, and the request destination terminal identifier and the request source terminal identifier are stored in the terminal request storage unit, and the presence information request is received. A plurality of types of presence information request transmission / reception units for transferring the terminal model and the terminal model from the presentity and registering them in the terminal identifier / terminal model correspondence database. A presence information receiving unit that obtains a presence protocol by referring to the protocol correspondence table and receives presence information from the presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is stored in the presence format table. A presence format conversion unit for converting the presence format converted by the presence format conversion unit into presence information in the presence format of the watcher model by referring to the terminal identifier of the presentity that is the request destination terminal. To characterized in that to function as a plurality of types of presence information transmitting unit for transmitting each presence protocol watcher of the request source terminal identifier removed requesting terminal identifier by searching the terminal request storage unit.
[0023]
Still further, the presence server program of the present invention includes a computer, a presence format table storing a set of terminal models and presence formats, a terminal model / presence protocol correspondence table holding a set of terminal models and presence protocols, and a terminal identifier. Terminal identifier / terminal model correspondence database for storing sets of terminal information and terminal models, a terminal request storage unit for storing request destination terminal identifiers and request source terminal identifiers for presence information requests from watchers, and presence information requests from watchers. The terminal information and the terminal model are received for each protocol and registered in the terminal identifier / terminal model correspondence database, and the request destination terminal identifier and the request source terminal identifier are stored in the terminal request storage unit, and the presence information request is presented. A plurality of types of presence information request transmission / reception units to be transferred to the terminal, and terminal identifiers and terminal models from the presentities are received and registered in the terminal identifier / terminal model correspondence database, and the terminal model / presence is set using the terminal model as a key. A presence information receiving unit that obtains a presence protocol by referring to the protocol correspondence table and receives presence information from the presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is stored in the presence format table. The presence format conversion unit that converts the presence format converted by the presence format conversion unit into presence information in the presence format of the watcher model with reference to the terminal identifier of the presentity that is the request destination terminal. A plurality of types of presence information transmitting units that retrieve the requester terminal identifier by searching the terminal request storage unit and transmit the requester terminal identifier to a watcher of the requester terminal identifier for each presence protocol; and the presence format conversion unit by the presence format converter. An instant message conversion unit that converts the difference between the converted presence information into an instant message packet in a readable format, and the instant message packet converted by the instant message conversion unit, using the terminal identifier of the presentity as a request destination terminal identifier. The terminal request storage unit is searched to function as an instant message transmission unit that transmits the terminal request storage unit to the watcher of the request source terminal identifier.
[0024]
A presence service system, a presence server, and a presence server program according to the present invention convert a presence format or presence protocol of presence information distributed from a presentity (presence information notifier) in a presence service, and use different presence formats and presence protocols. Are allowed to communicate with each other. In the present invention, the presence service system is defined as a combination of a presence server, a terminal supporting the presence service, and a network connecting the two. In addition, the terminal has two types: a watcher, which is a function for referring to the presence information of another person, and a presentity, which transmits presence information triggered by a change in its own presence information. A normal presence service compatible terminal has both a watcher and a presentity function.
[0025]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
[0026]
[First Embodiment]
FIG. 1 is a block diagram showing the configuration of the presence service system according to the first embodiment of the present invention. The main part of the presence service system according to the present embodiment includes a presence server 1, a watcher 3a and a watcher 3b, and a presentity 4. Hereinafter, the watcher 3a, the watcher 3b, and the presentity 4 are collectively referred to as terminals.
[0027]
FIG. 2 is a diagram showing an example of a network configuration for realizing the presence service system according to the first embodiment shown in FIG. Here, an example is shown in which a terminal is a mobile phone having an Internet connection function and a network is a mobile wireless network.
[0028]
The watchers 3a and 3b request the presence server 1 for different presence information using the same presence format and presence protocol, and receive the presence information from the presence server 1. In the present embodiment, two watchers are assumed, but the present invention can be applied without any particular limitation.
[0029]
The watcher 3a sends a presence information request to the presence server 1 with the terminal identifier Ta and the terminal model Ka of the watcher 3a. In addition, when receiving the presence information, the watcher 3a presents the presence information to the presence information requester. Presence information is created in different presence formats by terminals. The presence format that can be interpreted by the watcher 3a is defined as a presence format Fa.
[0030]
The watcher 3b sends a presence information request to the presence server 1 with the terminal identifier Tb and the terminal model Kb of the watcher 3b. When the presence information is received, the watcher 3b presents the presence information to the presence information requester. The presence format that can be interpreted by the watcher 3b is defined as a presence format Fb.
[0031]
The presentity 4 is a terminal that provides presence information, and has a function of accepting a change in presence of a presence information notifier and distributing the presence information over a network. The presence format of the presence information distributed by the presentity 4 is defined as a presence format Fc.
[0032]
Normally, the presence service compatible terminal has both the function of providing presence information and the function of receiving presence information. However, in this specification, for the sake of simplicity, the watchers 3a and 3b and the presentity 4 are connected. It is described as a terminal with another function. In a normal presence service compatible terminal, both functions of a watcher and a presentity are implemented.
[0033]
The presence server 1 transfers the presence information request received from the watchers 3a and 3b to the presentity 4. Further, the presence server 1 receives the presence information distributed from the presentity 4, and converts the presence information Ic of the presence format Fc of the presentity 4 into presence formats Fa and Fb that can be interpreted by the individual watchers 3a and 3b. It is converted into information Ia and Ib. The presence server 1 has a function of transmitting presence information Ia and Ib converted into presence formats Fa and Fb to watchers 3a and 3b, which are requesting terminals.
[0034]
Specifically, the presence server 1 includes a presence information request transmission / reception unit 11, a terminal identifier / terminal model correspondence database 12, a terminal request storage unit 13, a presence information reception unit 14, a presence format conversion unit 15, a presence format table 16 and a presence information transmitting unit 17.
[0035]
The presence information request transmission / reception unit 11 receives presence information requests from the watchers 3a and 3b, extracts terminal identifiers Ta and Tb and terminal models Ka and Kb from the received presence information requests, and stores a terminal identifier / terminal model correspondence database 12 Register with. The presence information request transmission / reception unit 11 stores the request destination terminal identifier Tc and the request source terminal identifiers Ta and Tb relating to the presence information request from the watchers 3a and 3b in the terminal request storage unit 13. Further, the presence information request transmission / reception unit 11 transfers the presence information request received from the watchers 3a and 3b to the presentity 4 of the request destination terminal identifier Tc.
[0036]
Referring to FIG. 3, the terminal identifier / terminal model correspondence database 12 stores a set of a terminal identifier and a terminal model for each terminal. The terminal identifier is an abstraction of the terminal address, and includes therein a URL (Uniform Resource Locator), a MAC (Media Access Control) address, and the like.
[0037]
Referring to FIG. 4, terminal request storage unit 13 stores request destination terminal identifiers Tc and request source terminal identifiers Ta and Tb relating to presence information requests from watchers 3a and 3b.
[0038]
The presence information receiving unit 14 receives the terminal identifier Tc and the terminal model Kc from the presentity 4 and registers a set of the terminal identifier Tc and the terminal model Kc in the terminal identifier / terminal model correspondence database 12. Further, the presence information receiving unit 14 receives the presence information Ic distributed from the presentity 4.
[0039]
The presence format conversion unit 15 converts the presence information Ic received by the presence information receiving unit 14 into presence information Ia or Ib of the presence format Fa or Fb in the watcher 3a or 3b that is the requesting terminal by referring to the presence format table 16. Convert.
[0040]
Referring to FIG. 5, the presence format table 16 stores a set of a terminal model and a presence format for each terminal. The presence format describes the status of the presence (offline, online, telephone, etc.) in a fixed format so that the terminals can communicate with each other.
[0041]
The presence information transmitting unit 17 transmits the presence information Ia and Ib whose presence formats have been converted by the presence format converting unit 15 to the watcher 3a or 3b that is the request source terminal.
[0042]
Referring to FIG. 6, the process of receiving the terminal identifier Tc and the terminal model Kc from the presentity 4 in the presence server 1 includes a terminal identifier and terminal model receiving step S101 and a terminal identifier and terminal model set registration step S102. .
[0043]
Referring to FIG. 7, the presence information request receiving process from the watchers 3a and 3b in the presence server 1 includes a presence information request receiving step S111, a terminal identifier and terminal model extracting step S112, a terminal identifier and terminal model pair registration. It comprises a step S113, a request source terminal identifier and a request destination terminal identifier storage step S114, a request source terminal identifier and a request destination terminal identifier existing presence determination step S115, and a presence information request transfer step S116.
[0044]
Referring to FIG. 8, the process of receiving presence information Ic from presentity 4 in presence server 1 includes presence information receiving step S121, requesting terminal model extracting step S122, presence format conversion instruction step S123, and presence format conversion. It comprises a step S124, a presence information transmission instruction step S125, a request source terminal identifier retrieval step S126, a presence information transmission step S127, and a request source terminal model presence / absence determination step S128.
[0045]
Next, the operation of the presence service system according to the first embodiment thus configured will be described with reference to FIGS.
[0046]
In the initial state, the terminal identifier / terminal model correspondence database 12 of the presence server 1 is assumed to be empty. It is also assumed that the terminal request storage unit 13 is empty. Further, it is assumed that a combination of a terminal model and a presence format is registered in the presence format table 16 in advance.
[0047]
The presentity 4 transmits the terminal identifier Tc of its own terminal and the terminal model Kc to the presence server 1 at the time of startup.
[0048]
In the presence server 1, the presence information receiving unit 14 receives the terminal identifier Tc and the terminal model Kc from the presentity 4 (step S101), and stores the set of the terminal identifier Tc and the terminal model Kc in the terminal identifier / terminal model correspondence database 12. (Step S102).
[0049]
On the other hand, the watcher 3a transmits a presence information request to the presentity 4 (hereinafter, referred to as presence information request A) to the presence server 1.
[0050]
In the presence server 1, the presence information request transmission / reception unit 11 receives the presence information request A from the watcher 3a (step S111).
[0051]
Next, the presence information request transmission / reception unit 11 extracts the terminal identifier Ta and the terminal model Ka of the watcher 3a from the received presence information request A (step S112), and sets the set of the terminal identifier Ta and the terminal model Ka to the terminal identifier / terminal model. Register it in the correspondence database 12 (step S113).
[0052]
Subsequently, the presence information request transmission / reception unit 11 stores a set of the request destination terminal identifier (the terminal identifier Tc of the presentity 4) and the request source terminal identifier (the terminal identifier Ta of the watcher 3a) included in the presence information request A in the terminal request storage. It is stored in the unit 13 (step S114).
[0053]
Next, the presence information request transmission / reception unit 11 determines whether a pair having the same request destination terminal identifier has already been stored in the terminal request storage unit 13 (step S115). A is transferred to the presentity 4 of the request destination terminal identifier Tc (step S116).
[0054]
The presentity 4 receives the presence information request A from the presence server 1 and stores that the presence information has been subscribed.
[0055]
On the other hand, the watcher 3b transmits a presence information request to the presentity 4 (hereinafter, referred to as presence information request B) to the presence server 1.
[0056]
In the presence server 1, the presence information request transmission / reception unit 11 receives the presence information request B from the watcher 3b (step S111).
[0057]
Next, the presence information request transmission / reception unit 11 extracts the terminal identifier Tb and the terminal model Kb of the watcher 3b from the received presence information request B (step S112), and sets the set of the terminal identifier Tb and the terminal model Kb to the terminal identifier / terminal model. Register it in the correspondence database 12 (step S113).
[0058]
Subsequently, the presence information request transmission / reception unit 11 stores a set of the request destination terminal identifier (the terminal identifier Tc of the presentity 4) and the request source terminal identifier (the terminal identifier Tb of the watcher 3b) included in the presence information request B in the terminal request. It is stored in the unit 13 (step S114).
[0059]
Next, the presence information request transmission / reception unit 11 determines whether a pair having the same request destination terminal identifier has already been stored in the terminal request storage unit 13 (step S115). Since the presence information request A has already transferred the presence information request A to the presentity 4, the presence information request B is not transferred to the presentity 4.
[0060]
Here, it is assumed that the presence information notifier changes the presence information Ic of the presentity 4. Then, the presentity 4 distributes the changed presence information Ic to the presence server 1.
[0061]
In the presence server 1, the presence information receiving unit 14 receives the presence information Ic from the presentity 4 (step S121).
[0062]
Next, the presence information receiving unit 14 searches the terminal identifier / terminal model correspondence database 12 using the terminal model Kc of the presentity 4 which is the transmission source (request destination) terminal as a key, and sets the terminal model as the terminal model of the request source terminal. The model Ka and the terminal model Kb are extracted (step S122).
[0063]
Subsequently, the presence information receiving unit 14 firstly converts the presence information Ic of the terminal model Kc of the request destination terminal (presentity 4) into the presence information of the terminal model Ka of the request source terminal by the presence format conversion unit 15. (Step S123).
[0064]
The presence format converter 15 retrieves the presence format table 16 by using the terminal model Kc of the request destination terminal and the terminal model Ka of the request source terminal as keys, retrieves the presence format Fc and the presence format Fa, and the presence information of the presence format Fc. Ic is converted into presence information Ia in presence format Fa (step S124).
[0065]
Next, the presence information receiving unit 14 instructs the presence information transmitting unit 17 to transmit the presence information Ia converted into the presence format Fa to the request source terminal (step S125).
[0066]
The presence information transmission unit 17 searches the terminal request storage unit 13 using the terminal identifier Tc of the presentity 4 as the request destination terminal identifier, and first retrieves the corresponding request source terminal identifier Ta (step S126).
[0067]
Next, the presence information transmitting unit 17 transmits the presence information Ia converted into the presence format Fa to the watcher 3a of the request source terminal identifier Ta (Step S127).
[0068]
Subsequently, the presence information receiving unit 14 determines whether or not the terminal model of the request source terminal extracted in step S122 still exists (step S128). Since there is still the terminal model Kb, the control returns to step S123.
[0069]
Subsequently, the presence information receiving unit 14 instructs the presence format converting unit 15 to convert the presence information Ic of the terminal model Kc of the request destination terminal (presentity 4) into the presence information of the terminal model Kb of the requesting terminal. (Step S123).
[0070]
The presence format converter 15 retrieves the presence format table 16 by using the terminal model Kc of the request destination terminal and the terminal model Kb of the request source terminal as keys, extracts the presence format Fc and the presence format Fb, and obtains presence information of the presence format Fc. Ic is converted to presence information Ib in presence format Fb (step S124).
[0071]
Next, the presence information receiving unit 14 instructs the presence information transmitting unit 17 to transmit the presence information Ib converted into the presence format Fb to the request source terminal (step S125).
[0072]
The presence information transmitting unit 17 searches the terminal request storage unit 13 using the terminal identifier Tc of the presentity 4 as the request destination terminal identifier, and extracts the corresponding request source terminal identifier Tb (step S126).
[0073]
Next, the presence information transmitting unit 17 transmits the presence information Ib converted into the presence format Fb to the watcher 3b of the requesting terminal identifier Tb (Step S127).
[0074]
Lastly, the presence information receiving unit 14 determines whether or not the terminal model of the request source terminal extracted in step S122 is still present (step S128).
[0075]
According to the first embodiment, by adding the presence format conversion unit 15 to the presence server 1, the terminal does not need to interpret a plurality of presence formats. Existence information can be exchanged with existing terminals only by extension on the server 1 side.
[0076]
In addition, it is not necessary to mount a plurality of presence format interpretation functions on a terminal having a small CPU (Central Processing Unit) resource or memory resource, so that consumption of CPU resource and memory resource can be reduced.
[0077]
Further, when a function of decompressing presence information is provided to the watchers 3a and 3b, a presence information compression function can be added to the presence server 1. Therefore, the presentity 4 is extended to add a presence information compression function. No need. In particular, when the network is a wireless telephone network, the wireless band can be saved.
[0078]
[Second embodiment]
FIG. 9 is a block diagram showing a configuration of the presence service system according to the second exemplary embodiment of the present invention.
[0079]
The presence service system according to the second embodiment converts the difference between the presence information before and after the presence format conversion into an instant message packet in a readable format when the type of presence information that can be interpreted / displayed by the watcher is small, It has a function of transmitting the converted instant message packet to the watcher in a form of adding it to the presence information.
[0080]
More specifically, the presence server 1a according to the second embodiment differs from the presence server 1 according to the first embodiment in that the difference between the presence information whose presence format has been converted by the presence format converter 15 is a readable format. An instant message conversion unit 18 for converting the instant message packet converted by the instant message conversion unit 18 into a terminal request storage unit 13 using the terminal identifier of the presentity as a request destination terminal identifier and searching for the request source terminal An instant message transmitting unit 19 for transmitting to an identifier watcher is added.
[0081]
By the way, in the second embodiment, an instant message packet is used as a format for converting the difference of the presence information and a transmission format. However, any transmission means that can push-transmit an email or the like can be used.
[0082]
Referring to FIG. 10, in the presence server 1a, the process of receiving the presence information Ic from the presentity 4 includes a presence information receiving step S121, a request source terminal model extracting step S122, a presence format conversion instruction step S123, and a presence format conversion. Step S124, presence information transmission instruction step S125, request source terminal identifier retrieval step S126, presence information transmission step S127, presence information difference conversion instruction step S129, instant message packet creation step S130, request source terminal identifier retrieval It comprises a step S131, an instant message packet transmission step S132, and a request source terminal model presence / absence determination step S128.
[0083]
The other parts which are not specifically mentioned are denoted by the same reference numerals as the corresponding parts in the first embodiment, and the detailed description thereof will be omitted.
[0084]
Next, the operation of the presence service system according to the second embodiment configured as described above will be described focusing on differences from the operation of the presence service system according to the first embodiment.
[0085]
In the second embodiment, the watchers 3a and 3b are assumed to be terminals with a small number of types of presence information capable of interpreting / displaying, and the conversion of the presence format in the first embodiment is changed as follows.
[0086]
In the presence server 1a, the presence information receiving unit 14 receives the presence information Ic from the presentity 4 (step S121).
[0087]
Next, the presence information receiving unit 14 searches the terminal identifier / terminal model correspondence database 12 using the terminal model Kc of the presentity 4 which is the transmission source (request destination) terminal as a key, and sets the terminal model as the terminal model of the request source terminal. The model Ka and the terminal model Kb are extracted (step S122).
[0088]
Subsequently, the presence information receiving unit 14 firstly converts the presence information Ic of the terminal model Kc of the request destination terminal (presentity 4) into the presence information of the terminal model Ka of the request source terminal by the presence format conversion unit 15. (Step S123).
[0089]
The presence format converter 15 retrieves the presence format table 16 by using the terminal model Kc of the request destination terminal and the terminal model Ka of the request source terminal as keys, retrieves the presence format Fc and the presence format Fa, and the presence information of the presence format Fc. Ic is converted into presence information Ia in presence format Fa (step S124).
[0090]
Next, the presence information receiving unit 14 instructs the presence information transmitting unit 17 to transmit the presence information Ia converted into the presence format Fa to the request source terminal (step S125).
[0091]
The presence information transmission unit 17 searches the terminal request storage unit 13 using the terminal identifier Tc of the presentity 4 as the request destination terminal identifier, and first retrieves the corresponding request source terminal identifier Ta (step S126).
[0092]
Next, the presence information transmitting unit 17 transmits the presence information Ia converted into the presence format Fa to the watcher 3a of the request source terminal identifier Ta (Step S127).
[0093]
Subsequently, the presence information receiving unit 14 passes the difference of the presence information missing in the process of converting the presence information Ic of the presence format Fc to the presence information Ia of the presence format Fa to the instant message conversion unit 18 and transfers the difference of the presence information to the instant message conversion unit 18. An instruction is given to convert the packet into an instant message packet in a readable format (step S129).
[0094]
The instant message converter 18 creates an instant message packet in a readable format based on the difference between the presence information passed from the presence format converter 15 (step S130).
[0095]
Next, the instant message transmitting unit 19 searches the terminal request storage unit 13 using the terminal identifier Tc of the presentity 4 as the request destination terminal identifier, and first retrieves the corresponding request source terminal identifier Ta (step S131).
[0096]
Subsequently, the instant message transmitting unit 19 transmits the instant message packet to the watcher 3a of the request source terminal identifier Ta (Step S132).
[0097]
Next, the presence information receiving unit 14 determines whether or not the terminal model of the request source terminal extracted in step S122 is still present (step S128). Since there is, the control is returned to step S123.
[0098]
The presence information receiving unit 14 instructs the presence format converting unit 15 to convert the presence information Ic of the terminal model Kc of the request destination terminal (Presentity 4) into the presence information of the terminal model Kb of the requesting terminal (step). S123).
[0099]
The presence format converter 15 retrieves the presence format table 16 by using the terminal model Kc of the request destination terminal and the terminal model Kb of the request source terminal as keys, extracts the presence format Fc and the presence format Fb, and obtains presence information of the presence format Fc. Ic is converted to presence information Ib in presence format Fb (step S124).
[0100]
Next, the presence information receiving unit 14 instructs the presence information transmitting unit 17 to transmit the presence information Ib converted into the presence format Fb to the request source terminal (step S125).
[0101]
The presence information transmitting unit 17 searches the terminal request storage unit 13 using the terminal identifier Tc of the presentity 4 as the request destination terminal identifier, and extracts the corresponding request source terminal identifier Tb (step S126).
[0102]
Next, the presence information transmitting unit 17 transmits the presence information Ib converted into the presence format Fb to the watcher 3b of the requesting terminal identifier Tb (Step S127).
[0103]
Subsequently, the presence information receiving unit 14 passes the difference of the presence information missing in the process of converting the presence information Ic of the presence format Fc to the presence information Ib of the presence format Fb to the instant message conversion unit 18, and An instruction is given to convert the packet into an instant message packet in a readable format (step S129).
[0104]
The instant message converter 18 creates an instant message packet in a readable format based on the difference between the presence information passed from the presence format converter 15 (step S130).
[0105]
Next, the instant message transmitting unit 19 searches the terminal request storage unit 13 using the terminal identifier Tc of the presentity 4 as a request destination terminal identifier, and extracts a corresponding request source terminal identifier Tb (step S131).
[0106]
Subsequently, the instant message transmitting unit 19 transmits the instant message packet to the watcher 3b of the request source terminal identifier Tb (Step S132).
[0107]
Finally, the presence information receiving unit 14 determines whether or not there is still a terminal model of the request source terminal extracted in step S122 (step S137), and terminates the processing because there is no such model.
[0108]
As described above, according to the second embodiment, not only the presence format conversion adapted to the requesting terminal, but also the terminal having a small number of presence information types that can be interpreted / displayed by the requesting terminal and the function of interpreting the presence information are provided. Even a terminal that does not have such a device can notify presence information using another communication means such as an instant message.
[0109]
[Third Embodiment]
FIG. 11 is a block diagram showing a configuration of the presence service system according to the third embodiment of the present invention. The presence service system according to the present embodiment differs from the presence service system according to the first embodiment shown in FIG. 1 in that the presence server 1 uses a presence protocol when the presence protocol that the watcher can interpret is different. Is provided.
[0110]
More specifically, in the presence server 1b according to the third embodiment, the presence information request transmission / reception unit 11 of the presence server 1 according to the first embodiment uses the presence information request transmission / reception unit 11a that receives a presence information request using the presence protocol Pa. And a presence information request transmission / reception unit 11b for receiving a presence information request using a presence protocol Pb different from the presence protocol Pa.
[0111]
In the presence server 1b according to the third embodiment, the presence information transmitting unit 17 of the presence server 1 according to the first embodiment includes a presence information transmitting unit 17a that transmits presence information using the presence protocol Pa, and a presence information transmitting unit 17a. And a presence information transmitting unit 17b for transmitting presence information using a presence protocol Pb different from Pa.
[0112]
Further, the presence server 1b according to the third embodiment differs from the presence server 1 according to the first embodiment in that a terminal model and a presence protocol that hold a set of a terminal model and a presence protocol as shown in FIG. A correspondence table 20 is added. The presence protocol is a procedure for exchanging presence information.
[0113]
Referring to FIG. 13, the process of receiving presence information Ic from presentity 4 in presence server 1b includes a presence information receiving step S121, a request source terminal model extracting step S122, a presence format conversion instruction step S123, and a presence format conversion. It comprises step S124, presence protocol extraction step S125a, presence information transmission instruction step S125b, request source terminal identifier extraction step S126, presence information transmission step S127, and request source terminal model presence / absence determination step S128.
[0114]
The other parts which are not specifically mentioned are denoted by the same reference numerals as the corresponding parts in the first embodiment, and the detailed description thereof will be omitted.
[0115]
Next, the operation of the presence service system according to the third embodiment thus configured will be described focusing on differences from the operation of the presence service system according to the first embodiment.
[0116]
In the initial state, the terminal identifier / terminal model correspondence database 12 of the presence server 1b is assumed to be empty. It is also assumed that the terminal request storage unit 13 is empty. Further, it is assumed that a set of terminal models and presence formats is registered in the presence format table 16. Furthermore, it is assumed that the terminal model / presence protocol correspondence table 20 has registered a set of terminal model and presence protocol.
[0117]
The presentity 4 transmits the terminal identifier Tc and the terminal model Kc to the presence server 1b at the time of activation.
[0118]
In the presence server 1b, the presence information receiving unit 14 receives the terminal identifier Tc and the terminal model Kc from the presentity 4 (step S101), and stores the set of the terminal identifier Tc and the terminal model Kc in the terminal identifier / terminal model correspondence database 12 (Step S102).
[0119]
On the other hand, the watcher 3a transmits a presence information request to the presentity 4 (hereinafter, referred to as presence information request A) to the presence server 1b using the presence protocol Pa.
[0120]
In the presence server 1b, the presence information request transmission / reception unit 11a corresponding to the presence protocol Pa receives the presence information request A from the watcher 3a (step S111).
[0121]
Next, the presence information request transmission / reception unit 11a extracts the terminal identifier Ta and the terminal model Ka of the watcher 3a from the received presence information request A (step S112), and sets the set of the terminal identifier Ta and the terminal model Ka to the terminal identifier / terminal model. It is stored in the correspondence database 12 (step S113).
[0122]
Subsequently, the presence information request transmission / reception unit 11a stores a set of the request destination terminal identifier (the terminal identifier Tc of the presentity 4) and the request source terminal identifier (the terminal identifier Ta of the watcher 3a) included in the presence information request A in the terminal request storage. It is stored in the unit 13 (step S114).
[0123]
Next, the presence information request transmission / reception section 11a determines whether or not a pair having the same request destination terminal identifier has already been stored in the terminal request storage section 13 (step S115). A is transferred to the presentity 4 of the request destination terminal identifier Tc (step S116).
[0124]
The presentity 4 receives the presence information request A from the presence server 1b and stores that the presence information has been subscribed.
[0125]
On the other hand, the watcher 3b transmits a presence information request to the presentity 4 (hereinafter, referred to as presence information request B) to the presence server 1b using the presence protocol Pb.
[0126]
In the presence server 1b, the presence information request transmission / reception unit 11b corresponding to the presence protocol Pb receives the presence information request B from the watcher 3b (step S111).
[0127]
Next, the presence information request transmission / reception unit 11b extracts the terminal identifier Tb and the terminal model Kb of the watcher 3b from the received presence information request B (step S112), and sets the set of the terminal identifier Tb and the terminal model Kb to the terminal identifier / terminal model. Register it in the correspondence database 12 (step S113).
[0128]
Subsequently, the presence information request transmission / reception unit 11b stores the set of the request destination terminal identifier (the terminal identifier Tc of the presentity 4) and the request source terminal identifier (the terminal identifier Tb of the watcher 3b) included in the presence information request B in the terminal request. It is stored in the unit 13 (step S114).
[0129]
Next, the presence information request transmission / reception unit 11b determines whether a pair having the same request destination terminal identifier has already been stored in the terminal request storage unit 13 (step S115). Since the presence information request A has already transferred the presence information request A to the presentity 4, the presence information request B is not transferred to the presentity 4.
[0130]
Here, a case where the presence information notifier changes the presence information of the presentity 4 (hereinafter, referred to as presence information Ic) is considered. Then, the presentity 4 transmits the changed presence information Ic to the presence server 1b.
[0131]
In the presence server 1b, the presence information receiving unit 14 receives the presence information Ic from the presentity 4 (step S121).
[0132]
Next, the presence information receiving unit 14 searches the terminal identifier / terminal model correspondence database 12 using the terminal model Kc of the presentity 4 which is the transmission source (request destination) terminal as a key, and sets the terminal model as the terminal model of the request source terminal. The model Ka and the terminal model Kb are extracted (step S122).
[0133]
Subsequently, the presence information receiving unit 14 firstly converts the presence information Ic of the terminal model Kc of the request destination terminal (presentity 4) into the presence information of the terminal model Ka of the request source terminal by the presence format conversion unit 15. (Step S123).
[0134]
The presence format converter 15 retrieves the presence format table 16 by using the terminal model Kc of the request destination terminal and the terminal model Ka of the request source terminal as keys, retrieves the presence format Fc and the presence format Fa, and the presence information of the presence format Fc. Ic is converted into presence information Ia in presence format Fa (step S124).
[0135]
Next, the presence information receiving unit 14 searches the terminal model / presence protocol correspondence table 20 by using the terminal model Ka of the request source terminal as a key and extracts the presence protocol Pa (step S125a).
[0136]
Next, the presence information receiving unit 14 instructs the presence information transmitting unit 17a of the extracted presence protocol Pa to transmit the presence information Ia converted into the presence format Fa to the requesting terminal (step S125b).
[0137]
The presence information transmission unit 17a searches the terminal request storage unit 13 using the terminal identifier Tc of the presentity 4 as the request destination terminal identifier, and extracts the corresponding request source terminal identifier Ta (step S126).
[0138]
Next, the presence information transmitting unit 17a transmits the presence information Ia whose presence format has been converted by the presence format converting unit 15 to the watcher 3a of the requesting terminal identifier Ta (Step S127).
[0139]
Subsequently, the presence information receiving unit 14 determines whether or not the terminal model of the request source terminal extracted in step S122 is still present (step S128). Since there is, the control is returned to step S123.
[0140]
The presence information receiving unit 14 instructs the presence format converting unit 15 to convert the presence information Ic of the terminal model Kc of the request destination terminal (Presentity 4) into the presence information of the terminal model Kb of the requesting terminal (step). S123).
[0141]
The presence format converter 15 retrieves the presence format table 16 by using the terminal model Kc of the request destination terminal and the terminal model Kb of the request source terminal as keys, extracts the presence format Fc and the presence format Fb, and obtains presence information of the presence format Fc. Ic is converted to presence information Ib in presence format Fb (step S124).
[0142]
Next, the presence information receiving unit 14 retrieves the presence protocol Pb by searching the terminal model / presence protocol correspondence table 20 using the terminal model Kb of the request source terminal as a key (step S125a).
[0143]
Next, the presence information receiving unit 14 instructs the presence information transmitting unit 17b of the extracted presence protocol Pb to transmit the presence information Ib converted into the presence format Fb to the requesting terminal (step S125b).
[0144]
The presence information transmission unit 17b searches the terminal request storage unit 13 using the terminal identifier Tc of the presentity 4 as the request destination terminal identifier, and extracts the corresponding request source terminal identifier Tb (step S126).
[0145]
Next, the presence information transmitting unit 17b transmits the presence information Ib converted into the presence format Fb to the watcher 3b of the requesting terminal identifier Tb (Step S127).
[0146]
Lastly, the presence information receiving unit 14 determines whether or not the terminal model of the request source terminal extracted in step S122 is still present (step S128).
[0147]
As described above, according to the third embodiment, the presence protocol Pc of the presence information Ic distributed from the presentity 4 as the request destination terminal is changed to the presence protocols Pa and Pb of the watchers 3a and 3b as the request source terminals. Can be converted and transmitted.
[0148]
[Fourth Embodiment]
FIG. 14 is a block diagram illustrating a configuration of a presence service system according to the fourth embodiment of the present invention. The presence service system according to the present embodiment differs from the presence server 1b in the presence service system according to the third embodiment shown in FIG. 11 in that the presence service according to the second embodiment shown in FIG. An instant message converter 18 and an instant message transmitter 19 in the system are added to form a presence server 1c.
[0149]
In addition, other parts that are not particularly mentioned are denoted by the same reference numerals as corresponding parts in the first to third embodiments, and detailed description thereof is omitted.
[0150]
The operation of the presence service system according to the fourth embodiment configured as described above combines the operations of the presence service systems according to the second and third embodiments. Omitted.
[0151]
[Fifth Embodiment]
FIG. 15 is a block diagram showing the configuration of the presence service system according to the fifth embodiment of the present invention. The presence service system according to the present embodiment differs only in that a presence server program 100 is added to the presence server 1 in the presence service system according to the first embodiment shown in FIG. Therefore, other parts that are not particularly mentioned are denoted by the same reference numerals, and detailed description thereof will be omitted.
[0152]
The presence server program 100 is read by the presence server 1 which is a computer, and performs operations of the presence server 1 such as a presence information request transmission / reception unit 11, a terminal identifier / terminal model correspondence database 12, a terminal request storage unit 13, and a presence information reception unit 14. , The presence format conversion unit 15, the presence format table 16, and the presence information transmission unit 17. The operation of the presence server 1 under the control of the presence server program 100 is exactly the same as the operation of the presence server 1 in the first embodiment, and a detailed description thereof will be omitted.
[0153]
[Sixth Embodiment]
FIG. 16 is a block diagram showing a configuration of the presence service system according to the sixth embodiment of the present invention. The presence service system according to the present embodiment is different from the presence service system according to the second embodiment shown in FIG. 9 only in that a presence server program 100a is added to the presence server 1a. Therefore, other parts that are not particularly mentioned are denoted by the same reference numerals, and detailed description thereof will be omitted.
[0154]
The presence server program 100a is read by the presence server 1a, which is a computer, and performs the operations of the presence server 1a on the presence information request transmission / reception unit 11, terminal identifier / terminal model correspondence database 12, terminal request storage unit 13, and presence information reception unit 14. , A presence format conversion unit 15, a presence format table 16, a presence information transmission unit 17, an instant message conversion unit 18, and an instant message transmission unit 19. The operation of the presence server 1a under the control of the presence server program 100a is exactly the same as the operation of the presence server 1a in the second embodiment, and a detailed description thereof will be omitted.
[0155]
[Seventh Embodiment]
FIG. 17 is a block diagram showing a configuration of the presence service system according to the seventh exemplary embodiment of the present invention. The presence service system according to the present embodiment is different from the presence service system according to the third embodiment shown in FIG. 11 only in that a presence server program 100b is added to the presence server 1b. Therefore, other parts that are not particularly mentioned are denoted by the same reference numerals, and detailed description thereof will be omitted.
[0156]
The presence server program 100b is read by the presence server 1b, which is a computer, and performs the operation of the presence server 1b on the presence information request transmission / reception units 11a and 11b, the terminal identifier / terminal model correspondence database 12, the terminal request storage unit 13, and the presence information reception unit. Unit 14, presence format conversion unit 15, presence format table 16, presence information transmitting units 17a and 17b, and terminal model / presence protocol correspondence table 20. The operation of the presence server 1b under the control of the presence server program 100b is exactly the same as the operation of the presence server 1b according to the third embodiment, and a detailed description thereof will be omitted.
[0157]
[Eighth Embodiment]
FIG. 18 is a block diagram showing a configuration of the presence service system according to the eighth embodiment of the present invention. The presence service system according to the present embodiment is different from the presence service system according to the fourth embodiment shown in FIG. 14 only in that a presence server program 100c is added to the presence server 1c. Therefore, other parts that are not particularly mentioned are denoted by the same reference numerals, and detailed description thereof will be omitted.
[0158]
The presence server program 100c is read by the presence server 1c, which is a computer, and determines the operation of the presence server 1c by transmitting the presence information request transmission / reception units 11a and 11b, the terminal identifier / terminal model correspondence database 12, the terminal request storage unit 13, and the presence information reception. , A presence format converter 15, a presence format table 16, presence information transmitters 17a and 17b, an instant message converter 18, an instant message transmitter 19, and a terminal model / presence protocol correspondence table 20. The operation of the presence server 1c under the control of the presence server program 100c is exactly the same as the operation of the presence server 1c in the fourth embodiment, and a detailed description thereof will be omitted.
[0159]
【The invention's effect】
The first effect is that even when a new presence format is defined, the presence information can be exchanged with an existing terminal only by extension on the presence server side. The reason is that only the function of converting the presence format of the presence information into the presence server is added, and the terminal does not need to interpret a plurality of presence formats.
[0160]
The second effect is that the consumption of CPU resources and memory resources can be reduced. The reason is that it is not necessary to provide a plurality of presence format interpretation functions in a terminal having a small amount of CPU resources and memory resources.
[0161]
The third effect is that it is not necessary to extend the presentity for adding the function of compressing presence information. The reason is that when a function of decompressing presence information is given to the watcher, a presence server compression function can be added to the presence server. In particular, when the network is a wireless telephone network, a remarkable effect that a wireless band can be saved can be obtained.
[0162]
The fourth effect is that not only the presence format conversion according to the requesting terminal, but also a terminal having a small type of presence information that can be interpreted / displayed by the requesting terminal or a terminal having no function of interpreting presence information, such as an instant message. The presence information can be notified using another communication means. The reason is that an instant message converter and an instant message transmitter are added to the presence server.
[0163]
A fifth effect is that the presence protocol of the presence information distributed from the presentity, which is the request destination terminal, can be converted into the presence protocol of the watcher, which is the request source terminal, and transmitted. The reason is that the presence server is provided with a terminal model / presence protocol correspondence table, and the presence information is transmitted by the presence information transmission unit of the present protocol according to the terminal model.
[Brief description of the drawings]
FIG. 1 is a block diagram showing a configuration of a presence service system according to a first embodiment of the present invention.
FIG. 2 is a diagram illustrating an example of a network configuration for realizing the presence service system according to the first embodiment.
FIG. 3 is a diagram showing an example of the contents of a terminal identifier / terminal model correspondence database in FIG. 1;
FIG. 4 is a diagram illustrating an example of contents of a terminal request storage unit in FIG. 1;
FIG. 5 is a diagram showing an example of the contents of a presence format table in FIG. 1;
FIG. 6 is a flowchart showing a process of receiving a terminal identifier and a terminal model from a presentity in the presence server in FIG. 1;
FIG. 7 is a flowchart showing a process of receiving a presence information request from a watcher in the presence server in FIG. 1;
FIG. 8 is a flowchart showing a process of receiving presence information from a presentity in the presence server in FIG. 1;
FIG. 9 is a block diagram showing a configuration of a presence service system according to a second exemplary embodiment of the present invention.
FIG. 10 is a flowchart illustrating a process of receiving presence information from a presentity in the presence server in FIG. 9;
FIG. 11 is a block diagram showing a configuration of a presence service system according to a third embodiment of the present invention.
12 is a diagram showing an example of the contents of a terminal model / presence protocol correspondence table in FIG. 11;
FIG. 13 is a flowchart illustrating a process of receiving presence information from a presentity in the presence server in FIG. 11;
FIG. 14 is a block diagram illustrating a configuration of a presence service system according to a fourth embodiment of the present invention.
FIG. 15 is a block diagram illustrating a configuration of a presence service system according to a fifth embodiment of the present invention.
FIG. 16 is a block diagram showing a configuration of a presence service system according to a sixth embodiment of the present invention.
FIG. 17 is a block diagram illustrating a configuration of a presence service system according to a seventh embodiment of the present invention.
FIG. 18 is a block diagram showing a configuration of a presence service system according to an eighth embodiment of the present invention.
[Explanation of symbols]
1,1a, 1b, 1c Presence server
3a, 3b watcher
4 Presentity
11, 11a, 11b Presence information request transmission / reception section
12 Terminal identifier / terminal model correspondence database
13 Terminal request storage unit
14 Presence information receiver
15 Presence format converter
16 Presence format table
17, 17a, 17b Presence information transmitting unit
18 Instant Message Converter
19 Instant Message Transmitter
20 Terminal model / presence protocol correspondence table
100, 100a, 100b, 100c Presence server

Claims (12)

A watcher that issues a presence information request,
A presentity that distributes presence information,
The presence information request is received from the watcher, the terminal identifier and the terminal model are registered in the terminal identifier / terminal model correspondence database, and the request destination terminal identifier and the request source terminal identifier are stored in the terminal request storage unit, and the presence information request is stored. A presence information request transmission / reception unit for transferring to the presentity, a presence information receiving unit for receiving the terminal identifier and the terminal model from the presentity, registering them in the terminal identifier / terminal model correspondence database, and receiving the presence information from the presentity; A presence format conversion unit that converts presence information of the presence format of the presentity model received by the presence information receiving unit into presence information of the presence format of the watcher model with reference to a presence format table; A presence information having a presence format converted by the formula conversion unit, a presence information transmitting unit for searching the terminal request storage unit using the terminal identifier of the presentity as a request destination terminal identifier, and transmitting the terminal request storage unit to a watcher of the request source terminal identifier; A presence service system comprising a server. A watcher that issues a presence information request,
A presentity that distributes presence information,
The presence information request is received from the watcher, the terminal identifier and the terminal model are registered in the terminal identifier / terminal model correspondence database, and the request destination terminal identifier and the request source terminal identifier are stored in the terminal request storage unit, and the presence information request is stored. A presence information request transmission / reception unit for transferring to the presentity, a presence information receiving unit for receiving the terminal identifier and the terminal model from the presentity, registering them in the terminal identifier / terminal model correspondence database, and receiving the presence information from the presentity; A presence format conversion unit for converting presence information of the presence format of the presentity model received by the presence information receiving unit into presence information of the presence format of the watcher model with reference to a presence format table; A presence information transmitting unit that searches the terminal request storage unit by using the presence information whose presence format has been converted by using the terminal identifier of the presentity as a request destination terminal identifier and sends it to a watcher of the requesting terminal identifier, and the presence format conversion unit An instant message converter for converting a difference between presence information whose presence format has been converted into an instant message packet in a readable format, and a request for a terminal identifier of a presentity for the instant message packet converted by the instant message converter A presence server having an instant message transmitting unit that searches the terminal request storage unit as a destination terminal identifier and transmits the instant message transmission unit to a watcher of the requesting terminal identifier. Scan system. Multiple types of watchers that issue presence information requests in presence protocols that may be different,
A presentity that distributes presence information,
The presence information request from the watcher is received for each presence protocol, the terminal identifier and the terminal model are registered in the terminal identifier / terminal model correspondence database, and the request destination terminal identifier and the request source terminal identifier are stored in the terminal request storage unit. A plurality of presence information request transmission / reception units for transferring presence information requests to the presentity; receiving terminal identifiers and terminal models from the presentities; registering them in the terminal identifier / terminal model correspondence database; A presence information receiving unit that obtains a presence protocol by referring to the model / presence protocol correspondence table and receives presence information from the presentity; A presence format conversion unit for converting the presence format converted by the presence format conversion unit into presence information of a watcher model by referring to the presence format table; and a terminal of the presentity which is a request destination terminal. A presence server having a plurality of types of presence information transmitting units that retrieves the requesting terminal identifier by searching the terminal request storage unit using the identifier as a key, and transmits the requesting terminal identifier to a watcher of the requesting terminal identifier for each presence protocol. Characterized presence service system. Multiple types of watchers that issue presence information requests in presence protocols that may be different,
A presentity that distributes presence information,
The presence information request from the watcher is received for each presence protocol, the terminal identifier and the terminal model are registered in the terminal identifier / terminal model correspondence database, and the request destination terminal identifier and the request source terminal identifier are stored in the terminal request storage unit. A plurality of presence information request transmission / reception units for transferring presence information requests to the presentity; receiving terminal identifiers and terminal models from the presentities; registering them in the terminal identifier / terminal model correspondence database; A presence information receiving unit that obtains a presence protocol by referring to the model / presence protocol correspondence table and receives presence information from the presentity; A presence format conversion unit for converting the presence format converted by the presence format conversion unit into presence information of a watcher model by referring to the presence format table; and a terminal of the presentity which is a request destination terminal. A plurality of types of presence information transmitting units for retrieving the requesting terminal identifier by using the identifier as a key to retrieve the requesting terminal identifier and transmitting to the watcher of the requesting terminal identifier for each presence protocol, and the presence format by the presence format converting unit; An instant message converter for converting the difference between the converted presence information into an instant message packet in a readable format, and an instant message packet converted by the instant message converter. Presence service system characterized by having a presence server having an instant message transmission unit for transmitting the terminal identifier of Rezentiti by searching the terminal request storage section as a request destination terminal identifier to the watcher of the requesting terminal identifier. A presence format table storing sets of terminal models and presence formats;
A terminal identifier / terminal model correspondence database for storing sets of terminal identifiers and terminal models,
A terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier relating to the presence information request from the watcher,
A presence information request from a watcher is received, and a terminal identifier and a terminal model are registered in the terminal identifier / terminal model correspondence database, and a request destination terminal identifier and a request source terminal identifier are stored in the terminal request storage unit to store the presence information. A presence information request transmission / reception unit for transferring the request to the presentity,
A presence information receiving unit that receives the terminal identifier and the terminal model from the presentity, registers the terminal identifier and the terminal model in the database, and receives the presence information from the presentity;
A presence format conversion unit that converts presence information of the presence format of the presentity model received by the presence information receiving unit into presence information of the presence format of the watcher model with reference to the presence format table;
A presence information transmitting unit that transmits the presence information whose presence format is converted by the presence format converting unit to the watcher of the requesting terminal identifier by searching the terminal request storage unit using the terminal identifier of the presentity as the requesting terminal identifier; A presence server comprising: A presence format table storing sets of terminal models and presence formats;
A terminal identifier / terminal model correspondence database for storing sets of terminal identifiers and terminal models,
A terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier relating to the presence information request from the watcher,
A presence information request from a watcher is received, and a terminal identifier and a terminal model are registered in the terminal identifier / terminal model correspondence database, and a request destination terminal identifier and a request source terminal identifier are stored in the terminal request storage unit to store the presence information. A presence information request transmission / reception unit for transferring the request to the presentity,
A presence information receiving unit that receives the terminal identifier and the terminal model from the presentity, registers the terminal identifier and the terminal model in the database, and receives the presence information from the presentity;
A presence format conversion unit that converts presence information in the presence format of the presentity model received by the presence information receiving unit into presence information in the presence format of the watcher model with reference to the presence format table;
A presence information transmitting unit that transmits the presence information whose presence format is converted by the presence format converting unit to the watcher of the requesting terminal identifier by searching the terminal request storage unit using the terminal identifier of the presentity as the requesting terminal identifier; An instant message conversion unit that converts a difference between presence information whose presence format has been converted by the presence format conversion unit into an instant message packet having a readable format;
An instant message transmitting unit that retrieves the instant message packet converted by the instant message converting unit using the terminal identifier of the presentity as a request destination terminal identifier, searches the terminal request storage unit, and sends it to a watcher of the request source terminal identifier. A presence server, characterized in that: A presence format table storing sets of terminal models and presence formats;
A terminal model / presence protocol correspondence table that holds a set of terminal models and presence protocols,
A terminal identifier / terminal model correspondence database for storing sets of terminal identifiers and terminal models,
A terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier relating to the presence information request from the watcher,
A presence information request from a watcher is received for each presence protocol, and a terminal identifier and a terminal model are registered in the terminal identifier / terminal model correspondence database, and a request destination terminal identifier and a request source terminal identifier are stored in the terminal request storage unit. A plurality of types of presence information request transmission / reception units for transferring the presence information request to a presentity;
The terminal identifier and the terminal model from the presentity are received and registered in the terminal identifier / terminal model correspondence database, the presence model is obtained by referring to the terminal model / presence protocol correspondence table using the terminal model as a key, A presence information receiving unit for receiving presence information from
A presence format conversion unit that converts presence information of the presence format of the presentity model received by the presence information receiving unit into presence information of the presence format of the watcher model with reference to the presence format table;
The presence information whose presence format has been converted by the presence format conversion unit is searched for the terminal request storage unit by using the terminal identifier of the presentity that is the request destination terminal as a key, and the request source terminal identifier is extracted. A plurality of types of presence information transmitting units that transmit to the watcher for each presence protocol. A presence format table storing sets of terminal models and presence formats;
A terminal model / presence protocol correspondence table that holds a set of terminal models and presence protocols,
A terminal identifier / terminal model correspondence database for storing sets of terminal identifiers and terminal models,
A terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier relating to the presence information request from the watcher,
A presence information request from a watcher is received for each presence protocol, and a terminal identifier and a terminal model are registered in the terminal identifier / terminal model correspondence database, and a request destination terminal identifier and a request source terminal identifier are stored in the terminal request storage unit. A plurality of types of presence information request transmission / reception units for transferring the presence information request to a presentity;
The terminal identifier and the terminal model from the presentity are received and registered in the terminal identifier / terminal model correspondence database, the presence model is obtained by referring to the terminal model / presence protocol correspondence table using the terminal model as a key, A presence information receiving unit for receiving presence information from
A presence format conversion unit that converts presence information of the presence format of the presentity model received by the presence information receiving unit into presence information of the presence format of the watcher model with reference to the presence format table;
The presence information whose presence format has been converted by the presence format conversion unit is searched for the terminal request storage unit by using the terminal identifier of the presentity that is the request destination terminal as a key, and the request source terminal identifier is extracted. A plurality of presence information transmitting units that transmit to the watcher for each presence protocol;
An instant message conversion unit that converts a difference in presence information whose presence format has been converted by the presence format conversion unit into an instant message packet in a readable format;
An instant message transmitting unit that retrieves the instant message packet converted by the instant message converting unit using the terminal identifier of the presentity as a request destination terminal identifier, searches the terminal request storage unit, and sends it to a watcher of the request source terminal identifier. A presence server, characterized in that: A computer is provided with a presence format table storing sets of terminal models and presence formats, a terminal identifier / terminal model correspondence database storing a set of terminal identifiers and terminal models, and a request destination terminal identifier and a request for a presence information request from a watcher. A terminal request storage unit for storing the original terminal identifier, and receiving the presence information request from the watcher, registering the terminal identifier and the terminal model in the terminal identifier / terminal model correspondence database, and registering the request destination terminal identifier and the request source terminal identifier. A presence information request transmission / reception unit that stores the terminal information in the terminal request storage unit and transfers the presence information request to the presentity, and receives a terminal identifier and a terminal model from the presentity and registers them in the terminal identifier / terminal model correspondence database. , Presentite And a presence information receiving unit for receiving presence information from the user, and converting the presence information of the presence format of the presentity model received by the presence information receiving unit into presence information of the watcher model by referring to the presence format table. The presence format conversion unit, and the presence information whose presence format has been converted by the presence format conversion unit searches the terminal request storage unit using the terminal identifier of the presentity as the request destination terminal identifier, and sends it to the watcher of the request source terminal identifier. A presence server program for functioning as a presence information transmitting unit to be transmitted. A computer is provided with a presence format table storing sets of terminal models and presence formats, a terminal identifier / terminal model correspondence database storing a set of terminal identifiers and terminal models, and a request destination terminal identifier and a request for a presence information request from a watcher. A terminal request storage unit for storing the original terminal identifier, and receiving the presence information request from the watcher, registering the terminal identifier and the terminal model in the terminal identifier / terminal model correspondence database, and registering the request destination terminal identifier and the request source terminal identifier. A presence information request transmission / reception unit that stores the terminal information in the terminal request storage unit and transfers the presence information request to the presentity, and receives a terminal identifier and a terminal model from the presentity and registers them in the terminal identifier / terminal model correspondence database. , Presentite And a presence information receiving unit that receives presence information from the presence information receiving unit, and converts the presence information of the presence format of the presentity model received by the presence information receiving unit into presence information of the watcher model by referring to the presence format table. A presence format conversion unit to be converted, and the presence information whose presence format has been converted by the presence format conversion unit is searched for the terminal request storage unit using the terminal identifier of the presentity as a request destination terminal identifier, and a watcher of the request source terminal identifier is searched. A presence information transmitting unit that transmits the presence information converted by the presence format converting unit to an instant message packet in a readable format; The instant message packet converted by the stunt message conversion unit functions as an instant message transmission unit that searches the terminal request storage unit using the terminal identifier of the presentity as a request destination terminal identifier and transmits the terminal request storage unit to a watcher of the request source terminal identifier. Presence server program. The computer is provided with a presence format table storing sets of terminal models and presence formats, a terminal model / presence protocol correspondence table storing sets of terminal models and presence protocols, and a terminal identifier storing a set of terminal identifiers and terminal models. A terminal model correspondence database, a terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier relating to the presence information request from the watcher, and a terminal identifier and terminal model by receiving the presence information request from the watcher for each presence protocol. In the terminal identifier / terminal model correspondence database, and also stores the request destination terminal identifier and the request source terminal identifier in the terminal request storage unit and transfers the presence information request to the presentity. And a terminal identifier and a terminal model from the presentity are received and registered in the terminal identifier / terminal model correspondence database, and a presence protocol is obtained by referring to the terminal model / presence protocol correspondence table using the terminal model as a key. A presence information receiving unit for receiving presence information from a presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to as the presence format of the watcher model by referring to the presence format table. A presence format conversion unit that converts the presence information into information, and searches the terminal request storage unit for the presence information whose presence format has been converted by the presence format conversion unit by using the terminal identifier of the presentity as the request destination terminal as a key. Former terminal knowledge The presence server program for functioning as a plurality of types of presence information transmitting unit for transmitting each presence protocol watcher of the request source terminal identifier removed child. The computer is provided with a presence format table storing sets of terminal models and presence formats, a terminal model / presence protocol correspondence table storing sets of terminal models and presence protocols, and a terminal identifier storing a set of terminal identifiers and terminal models. A terminal model correspondence database, a terminal request storage unit for storing a request destination terminal identifier and a request source terminal identifier relating to the presence information request from the watcher, and a terminal identifier and terminal model by receiving the presence information request from the watcher for each presence protocol. In the terminal identifier / terminal model correspondence database, and also stores the request destination terminal identifier and the request source terminal identifier in the terminal request storage unit and transfers the presence information request to the presentity. And a terminal identifier and a terminal model from the presentity are received and registered in the terminal identifier / terminal model correspondence database, and a presence protocol is obtained by referring to the terminal model / presence protocol correspondence table using the terminal model as a key. A presence information receiving unit for receiving presence information from a presentity, and the presence information of the presence format of the presentity model received by the presence information receiving unit is referred to as the presence format of the watcher model by referring to the presence format table. A presence format conversion unit that converts the presence information into information, and searches the terminal request storage unit for the presence information whose presence format has been converted by the presence format conversion unit by using the terminal identifier of the presentity as the request destination terminal as a key. Former terminal knowledge A plurality of presence information transmitting units for taking out a child and transmitting the presence information to the watcher of the requesting terminal identifier for each presence protocol, and an instant message in a readable format by using a difference between the presence information converted from the presence format by the presence format conversion unit. An instant message conversion unit for converting the instant message packet into a packet; and searching the terminal request storage unit using the terminal identifier of the presentity as a request destination terminal identifier, and a watcher for a request source terminal identifier. Presence server program for functioning as an instant message sending unit for sending to a user.

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