JP2001136278A - Private branch exchange maintenance system - Google Patents

Abstract

(57) [Problem] To provide a private branch exchange maintenance system capable of connecting a terminal and a private branch exchange via a network and reducing communication costs for maintenance. A private branch exchange maintenance system in which a terminal (1) and a private branch exchange (6) are connected via a LAN (5) to perform maintenance of the private branch exchange (6) from the terminal.
Has an e-mail creating means 2 for creating an e-mail for maintenance request, and an e-mail transmitting means 3 for transmitting the e-mail to the private branch exchange 6 via the LAN 5. The private branch exchange 6 receives the e-mail from the terminal. Receiving means 7 for automatically receiving the e-mail via the LAN 5, e-mail analyzing means 8 for analyzing the contents of the received e-mail, and maintenance executing means for performing maintenance based on the analysis result in the e-mail analyzing means 8. 9 is provided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN and the terminal performs maintenance of the private branch exchange.

[0002]

2. Description of the Related Art FIG. 9 is a block diagram showing a conventional private branch exchange maintenance system.

In FIG. 9, reference numeral 38 denotes a terminal, 39 denotes an outside line calling means, 40 denotes a command creating means, 41 denotes a command transmitting means, 42 denotes a response receiving means, 43 denotes a public telephone network,
44 is a private branch exchange, 45 is an outside line incoming call means, 46 is a command receiving means, 47 is a command analysis means, 48 is a maintenance execution means, 49 is a response creation means, and 50 is a response transmission means.

The operation of the private branch exchange maintenance system thus configured will be described with reference to FIG. FIG. 10 is a flowchart showing a maintenance procedure in the system shown in FIG. 9, and shows an operation in the case where the remote terminal 38 performs maintenance of the private branch exchange 44 using the public telephone network 43.

[0005] In FIG. 10, first, the terminal 38 requests connection to the private branch exchange 44 via the public telephone network 43 using the outside line calling means 39 (S 41). The private branch exchange 44 that has received the connection request uses the external line
8 (S42). After the connection, the terminal 38 creates a maintenance request command by the command creation means 40 (S43). The maintenance request command created in step S43 is transmitted to the public telephone network 43 by the command transmission means 41 (S44). The public telephone network 43 sends the maintenance request command to the private branch exchange 44 (S45). The transmitted maintenance request command is received by the command receiving means 46 in the private branch exchange 44 (S46). The received maintenance request command is analyzed by the command analysis means 47 (S4).
7). The maintenance is executed by the maintenance executing means 48 in accordance with the maintenance content obtained by the analysis (S48). Response creating means 49 of private branch exchange 44
To make the maintenance result a response (report) (S49). Response transmission means 50 of private branch exchange 44
Thus, the response created in step S49 is transmitted to the public telephone network 43 (S50). The public telephone network 43 transmits a response to the terminal 38 (S51). The transmitted response is received by the response receiving means 42 in the terminal 38 (S52).

As described above, in the conventional private branch exchange maintenance system, it is necessary to use the public telephone network 43 in order to perform maintenance of the private branch exchange 44 from the terminal 38.

In recent years, a network has been used as a means for improving the capability of a computer. Rather than developing a single powerful computer as in the past, and letting the computer perform all processing, a large number of computers are connected by a network, thereby distributing the load to one powerful computer. It is intended to have the above ability. Such measures are being used in private branch exchanges. A network of standard-sized private branch exchanges interconnected,
By increasing the number of private branch exchanges to be connected, it is intended to cope with systems of all sizes. Also, by integrating a telephone and a computer, CTI (Computer T
A technique called “ele-phony integration” is receiving attention. A network is also used as a means for integrating the telephone and the computer. Thus, private branch exchanges are increasingly connected to networks.

[0008] A network in which such networks are interconnected on a global scale is called the Internet, and it is possible to communicate at low cost with computers all over the world.
In particular, electronic mail is used for communication between humans, and many computers are in an environment where electronic mail can be transmitted and received.

[0009]

As described above, in the conventional private branch exchange maintenance system, it is necessary to use a public telephone network in order to perform maintenance of the private branch exchange using a terminal from a remote place, and telephone charges are increased. There was a problem of this. On the other hand, there is a method of connecting private branch exchanges via a network as described above.

In this private branch exchange maintenance system, it is required to replace the public telephone network in the conventional system with a network to reduce communication costs for maintenance.

An object of the present invention is to provide a private branch exchange maintenance system which can reduce the communication cost for maintenance by connecting a terminal and a private branch exchange via a network in order to satisfy this demand. .

[0012]

In order to solve this problem, a private branch exchange maintenance system according to the present invention has a private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN, and the private branch exchange is maintained from the terminal. Wherein the terminal comprises: an e-mail creating means for creating an e-mail for the maintenance request;
E-mail transmitting means for transmitting the e-mail from the terminal to the private branch exchange via the LAN.
An e-mail receiving unit for automatically receiving the e-mail via the e-mail, an e-mail analyzing unit for analyzing the content of the received e-mail, and a maintenance executing unit for performing maintenance based on the analysis result in the e-mail analyzing unit. Have.

[0013] Thus, a private branch exchange maintenance system that connects the terminal and the private branch exchange via a network and can reduce the communication cost for maintenance can be obtained.

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the private branch exchange maintenance system according to the first aspect of the present invention, the terminal and the private branch exchange have L
A private branch exchange maintenance system that is connected via an AN and performs maintenance of the private branch exchange from a terminal,
The terminal has e-mail creating means for creating an e-mail for maintenance request, and e-mail sending means for sending the e-mail to the private branch exchange via the LAN. The private branch exchange transmits the e-mail from the terminal to the LAN. Means for automatically receiving via an e-mail, e-mail analyzing means for analyzing the content of the received e-mail, and maintenance executing means for performing maintenance based on the analysis result of the e-mail analyzing means. Things.

With this configuration, since the communication between the terminal and the private branch exchange is performed via the LAN, there is an effect that the maintenance of the private branch exchange can be performed from a remote terminal without any communication cost.

A private branch exchange maintenance system according to a second aspect of the present invention is a private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN and maintenance of the private branch exchange is performed from the terminal. Failure detection means for detecting a failure, destination address storage means for storing the address of the terminal, and e-mail creation means for creating the content of the detected failure as an e-mail,
E-mail transmitting means for transmitting the e-mail via the LAN to an address where the e-mail is stored in the destination address storing means, and the terminal has e-mail receiving means for receiving the e-mail from the private branch exchange via the LAN It was decided that.

According to this configuration, since communication between the terminal and the private branch exchange is performed via the LAN, there is an effect that a failure notification from the private branch exchange to a terminal at a remote place can be made without a communication cost.

A private branch exchange maintenance system according to a third aspect of the present invention is a private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN, and the terminal performs maintenance of the private branch exchange. The private branch exchange includes an electronic mail creating unit that creates an electronic mail, an electronic mail transmitting unit that transmits the electronic mail to the private branch exchange via the LAN, and an electronic mail receiving unit that receives an electronic mail from the private branch exchange. ,
E-mail receiving means for automatically receiving an e-mail from a terminal via a LAN, e-mail analyzing means for analyzing the contents of the received e-mail, and maintenance for performing maintenance based on the analysis result of the e-mail analyzing means An execution means, an e-mail creating means for creating the result of the maintenance as a result e-mail, and an e-mail transmitting means for transmitting the created e-mail to the e-mail receiving means of the terminal via the LAN It is.

With this configuration, since communication between the terminal and the private branch exchange is performed via the LAN, it is possible to request maintenance of the private branch exchange and notify the maintenance result to a remote terminal without any communication cost. It has the effect of doing.

A private branch exchange maintenance system according to a fourth aspect is a private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN and the terminal performs maintenance of the private branch exchange. Means for creating an e-mail,
E-mail transmitting means for transmitting an e-mail to the private branch exchange via the LAN, wherein the private branch exchange automatically receives an e-mail from the terminal via the LAN; And e-mail analysis means for extracting update data from the data storage means for storing data, and data updating means for updating data in the data storage means with the extracted update data.

According to this configuration, since the communication between the terminal and the private branch exchange is performed via the LAN, there is an effect that the data in the private branch exchange can be updated from the remote terminal without any communication cost.

Hereinafter, an embodiment of the present invention will be described with reference to FIG.
This will be described with reference to FIG.

(Embodiment 1) FIG. 1 is a block diagram showing a private branch exchange maintenance system according to Embodiment 1 of the present invention.

In FIG. 1, 1 is a terminal, 2 is an e-mail creating means, 3 is an e-mail sending means, 5 is a LAN, 6 is a private branch exchange, 7 is an e-mail receiving means, 8 is an e-mail analyzing means, and 9 is an e-mail analyzing means. This is a maintenance execution unit.

The operation of the private branch exchange maintenance system thus configured will be described with reference to FIG. FIG. 5 is a flowchart showing an operation when the terminal 1 performs maintenance of the private branch exchange 6 between the terminal 1 and the private branch exchange 6 connected by the LAN 5.

In FIG. 5, first, the terminal 1 creates an electronic mail for a maintenance request by the electronic mail creating means 2 (S1). The e-mail created in step S1 is sent to the LAN 5 by the e-mail sending means 3 (S5).
2). The LAN 5 sends the electronic mail to the private branch exchange 6 (S3). The transmitted e-mail is received by the e-mail receiving means 7 in the private branch exchange 6 (S4). The received e-mail is analyzed for maintenance contents by the e-mail analysis means 8 (S5). According to the analyzed maintenance contents, the maintenance execution means 9
The maintenance is performed (S6).

As described above, according to the present embodiment, the terminal 1 transmits the e-mail to the private branch exchange 6 via the LAN 5 via the e-mail generating means 2 for generating an e-mail for the maintenance request. Means 3, a private branch exchange 6, an e-mail receiving means 7 for automatically receiving an e-mail from the terminal 1 via the LAN 5, and an e-mail analyzing means 8 for analyzing the contents of the received e-mail.
And the maintenance execution means 9 for performing maintenance based on the analysis result in the e-mail analysis means 8, so that the communication between the terminal 1 and the private branch exchange 6 is LA.
Since the communication is performed via N5, maintenance of the private branch exchange 6 from the terminal 1 at a remote location becomes possible without communication cost.

(Embodiment 2) FIG. 2 is a block diagram showing a private branch exchange maintenance system according to a second embodiment of the present invention. A failure detected internally by the private branch exchange is transmitted to a remote terminal via a LAN. Shows the notification system.

In FIG. 2, 10 is a terminal, 11 is an e-mail receiving means, 12 is a LAN, 13 is a private branch exchange, 14
Is a failure detecting means, 15 is an e-mail creating means, 16 is a destination address storing means, and 17 is an e-mail transmitting means.

The operation of the private branch exchange maintenance system thus configured will be described with reference to FIG. FIG. 6 is a flowchart showing an operation when the private branch exchange 13 notifies a terminal 10 at a remote place via the LAN 12 of a failure detected inside.

In FIG. 6, first, the address of the terminal 10 is stored by the transmission destination address storage means 16 of the private branch exchange 13 (S11). This address storage is performed by inputting data from an input unit (not shown) of the private branch exchange 13 or the like. Next, the private branch exchange 13
When a failure is detected, an e-mail for notifying the contents of the failure is created by the e-mail creating means 15 (S12). From the destination address storage means 16 to the terminal 10
Is taken out (S13). The e-mail transmitting means 17 of the private branch exchange 13 transmits the e-mail created in step S12 to the LAN 12 addressed to the address extracted in step S13 (S14). The LAN 12 sends an e-mail to the terminal 10 (S15). The transmitted e-mail is received by the e-mail receiving means 11 in the terminal 10 (S16).

As described above, according to the present embodiment, the private branch exchange 13 is provided with a failure detecting means 14 for detecting an internal failure.
A destination address storage means 16 for storing the address of the terminal, an e-mail creating means 15 for creating the contents of the detected fault as an e-mail, and a LAN 12 to an address for storing the e-mail in the destination address storage means 16.
The terminal 10 has an e-mail receiving unit 11 for receiving an e-mail from the private branch exchange 13 via the LAN 12 so that the terminal 10 and the private branch exchange 13 can communicate with each other. Communication between L
Since the communication is performed via the AN 12, a failure notification from the private branch exchange 13 to the terminal 10 at a remote place can be made without any communication cost.

(Third Embodiment) FIG. 3 is a block diagram showing a private branch exchange maintenance system according to a third embodiment of the present invention, in which a remote terminal performs maintenance of a private branch exchange via a LAN. Is shown.

In FIG. 3, 18 is a terminal, 19 is an e-mail creating means, 20 is an e-mail transmitting means, 21 is an e-mail receiving means, 22 is a LAN, 23 is a private branch exchange,
4 is an e-mail receiving means, 25 is an e-mail analyzing means,
26 is a maintenance execution unit, 27 is an e-mail creation unit, and 28 is an e-mail transmission unit.

The operation of the private branch exchange maintenance system thus configured will be described with reference to FIG. FIG. 7 is a flowchart showing an operation in the case where the remote terminal 18 performs maintenance of the private branch exchange 23 via the LAN 22.

In FIG. 7, first, the terminal 18 creates an electronic mail for a maintenance request by the electronic mail creating means 19 (S21). The e-mail created in step S21 is transmitted to the LAN 22 by the e-mail transmission means 20 (S22). The LAN 22 sends the electronic mail to the private branch exchange 23 (S23). The transmitted e-mail is received by the e-mail receiving means 24 in the private branch exchange 23 (S24). The received e-mail is analyzed for maintenance contents by the e-mail analysis means 25 (S
25). The maintenance is executed by the maintenance execution means 26 according to the analyzed maintenance contents (S
26). The maintenance result is converted into an electronic mail by the electronic mail creating means 27 of the private branch exchange 23 (S27). The e-mail (result e-mail) created in step S27 by the e-mail transmission means 28 of the private branch exchange 23 is stored in LA.
It is transmitted to N22 (S28). The LAN 22 transmits the result e-mail to the terminal 18 (S29). The transmitted result e-mail is received by the e-mail receiving means 21 in the terminal 18 (S30).

As described above, according to the present embodiment, the terminal 18 transmits the e-mail to the private branch exchange 23 via the LAN 22 via the e-mail generating means 19 for generating an e-mail for the maintenance request. Means 20
And an e-mail receiving means 21 for receiving an e-mail from the private branch exchange 23. The private branch exchange 23
E-mail receiving means 24 for automatically receiving the e-mail from PC 8 via LAN 22, e-mail analyzing means 25 for analyzing the contents of the received e-mail, and maintenance based on the analysis result of e-mail analyzing means 25. E-mail creating means 27 for creating a result of maintenance as a result e-mail, and e-mail sending means for sending the created result e-mail to the e-mail receiving means 21 of the terminal 18 via the LAN 22 28, the communication between the terminal 18 and the private branch exchange 23 is performed via the LAN 22, so that there is no communication cost and the maintenance request to the private branch exchange 23 and the maintenance result to the remote terminal 18 can be transmitted. Enable notifications.

(Embodiment 4) FIG. 4 is a block diagram showing a private branch exchange maintenance system according to a fourth embodiment of the present invention, in which a remote terminal updates data of the private branch exchange via a LAN. Is shown.

In FIG. 4, 29 is a terminal, 30 is an e-mail creating means, 31 is an e-mail transmitting means, and 32 is an LA
N and 33 are private branch exchanges, 34 is an e-mail receiving means, 3
5 is an electronic mail analysis means, 36 is a data storage means, 37
Is data updating means.

The operation of the private branch exchange maintenance system configured as described above will be described with reference to FIG. FIG. 8 is a flowchart showing the operation when the terminal 29 at the remote place updates the data of the private branch exchange 33 via the LAN 32.

In FIG. 8, first, the terminal 29 creates an electronic mail for a data update request by the electronic mail creating means 30 (S31). The e-mail created in step S31 is transmitted to the LAN 32 by the e-mail transmission means 31 (S32). LAN 32 sends e-mail to private branch exchange 3
3 (S33). The transmitted e-mail is received by the e-mail receiving means 34 in the private branch exchange 33 (S34). Data to be updated from the e-mail received by the e-mail analysis means 35 (hereinafter, “update data”)
Is retrieved (S35). Data update means 3
7, the update data is stored in the data storage means 36 (S36).

As described above, according to the present embodiment, the terminal 29 includes an e-mail creating means 30 for creating an e-mail for a data update request, and an e-mail for transmitting the e-mail to the private branch exchange 33 via the LAN 32. The private branch exchange 33 includes an e-mail receiving means 34 for automatically receiving an e-mail from the terminal 29 via the LAN 32, and an e-mail analyzing means 35 for extracting update data from the received e-mail. And a data storage means 36 for storing data, and a data update means 37 for updating data in the data storage means 36 with the extracted update data, so that the communication between the terminal 29 and the private branch exchange 33 is performed over the LAN 32. Since the communication is performed via the Internet, the data in the private branch exchange can be updated from the remote terminal 29 without any communication cost.

[0043]

As described above, according to the private branch exchange maintenance system according to the first aspect of the present invention, the terminal and the private branch exchange are connected via the LAN, and the private branch exchange that performs maintenance of the private branch exchange from the terminal is provided. In the maintenance system, the terminal includes: an e-mail creating unit that creates an e-mail for a maintenance request;
E-mail transmission means for transmitting the e-mail from the terminal to the private branch exchange via the AN.
An e-mail receiving means for automatically receiving the received e-mail via the N, an e-mail analyzing means for analyzing the content of the received e-mail, and a maintenance executing means for performing maintenance based on the analysis result of the e-mail analyzing means Accordingly, since the communication between the terminal and the private branch exchange is performed via the LAN, an advantageous effect that maintenance of the private branch exchange can be performed from a terminal in a remote place without communication costs can be obtained.

According to the private branch exchange maintenance system of the second aspect, the terminal and the private branch exchange are connected via the LAN, and the private branch exchange maintenance system performs maintenance of the private branch exchange from the terminal. Failure detection means for detecting an internal failure, destination address storage means for storing the terminal address, e-mail creation means for creating the content of the detected failure as an e-mail, and e-mail transmission destination address storage means E-mail transmitting means for transmitting via a LAN to an address to be stored; and the terminal has e-mail receiving means for receiving an e-mail from the private branch exchange via the LAN, whereby the terminal and the private branch exchange can be connected. The communication between the private branch exchanges and the remote terminals is performed at no cost because the communication between them is performed via LAN. Advantageous effect knowledge can be performed is obtained.

According to the private branch exchange maintenance system of the third aspect, the terminal and the private branch exchange are connected via the LAN, and the private branch exchange maintenance system performs maintenance of the private branch exchange from the terminal. An e-mail creating means for creating an e-mail of the request, an e-mail transmitting means for transmitting the e-mail to the private branch exchange via the LAN, and an e-mail receiving means for receiving an e-mail from the private branch exchange The exchange has an e-mail receiving means for automatically receiving e-mail from the terminal via the LAN, an e-mail analyzing means for analyzing the contents of the received e-mail, and a maintenance operation based on the analysis result of the e-mail analyzing means. Means to perform maintenance and create the result of maintenance as a result e-mail Communication between the terminal and the private branch exchange is performed via the LAN by having the e-mail creating means and the e-mail transmitting means for transmitting the created e-mail to the e-mail receiving means of the terminal via the LAN. Therefore, it is possible to obtain an advantageous effect that a maintenance request for a private branch exchange and a notification of a maintenance result to a remote terminal can be performed without a communication cost.

According to the private branch exchange maintenance system of the fourth aspect, the terminal and the private branch exchange are connected via the LAN, and the private branch exchange maintenance system performs maintenance of the private branch exchange from the terminal. An e-mail creating unit for creating an e-mail for the update request; and an e-mail transmitting unit for transmitting the e-mail to the private branch exchange via the LAN. The private branch exchange automatically sends the e-mail from the terminal via the LAN. E-mail receiving means for selectively receiving, e-mail analyzing means for extracting update data from the received e-mail, data storage means for storing data, and data updating means for updating data in the data storage means with the extracted update data Since the communication between the terminal and the private branch exchange is performed via the LAN, Advantageous effect of allowing updates from a remote terminal without communication cost private branch exchange flight data is obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a private branch exchange maintenance system according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a private branch exchange maintenance system according to a second embodiment of the present invention.

FIG. 3 is a block diagram showing a private branch exchange maintenance system according to a third embodiment of the present invention.

FIG. 4 is a block diagram showing a private branch exchange maintenance system according to a fourth embodiment of the present invention.

FIG. 5 is a flowchart showing an operation performed when the terminal performs maintenance of the private branch exchange between the terminal and the private branch exchange connected via the LAN.

FIG. 6 is a flowchart showing an operation when a private branch exchange notifies a terminal at a remote place via a LAN of a failure detected inside the private branch exchange;

FIG. 7 is a flowchart showing an operation when a terminal in a remote place performs maintenance of a private branch exchange via a LAN;

FIG. 8 is a flowchart showing an operation when a terminal in a remote place updates data of a private branch exchange via a LAN.

FIG. 9 is a block diagram showing a conventional private branch exchange maintenance system.

FIG. 10 is a flowchart showing a maintenance procedure in the system of FIG. 9;

[Explanation of symbols]

 1, 10, 18, 29 Terminal 2, 19, 30 E-mail creating means (terminal side) 3, 20, 31 E-mail sending means (terminal side) 4, 11, 21 E-mail receiving means (terminal side) 5, 12, , 22,32 LAN 6,13,23,33 Private branch exchange 7,24,34 E-mail receiving means (Private exchange side) 8,25,35 E-mail analyzing means 9,26 Maintenance executing means 14 Failure detecting means 15,27 E-mail creation means (private branch exchange side) 16 Destination address storage means 17, 28 E-mail transmission means (private exchange side) 36 Data storage means 37 Data update means

Claims (4)

[Claims] 1. A private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN and the terminal performs maintenance of the private branch exchange, wherein the terminal creates an electronic mail for a maintenance request. Creating means, and e-mail transmitting means for transmitting the e-mail to the private branch exchange via the LAN,
The private branch exchange sends an e-mail from the terminal to the L
E-mail receiving means for automatically receiving via an AN;
A private branch exchange maintenance system, comprising: an e-mail analyzing means for analyzing the content of the received e-mail; and a maintenance executing means for performing maintenance based on an analysis result of the e-mail analyzing means. 2. A private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN, and the terminal performs maintenance of the private branch exchange, wherein the private branch exchange detects an internal failure. And transmission destination address storage means for storing the address of the terminal,
E-mail creation means for creating the content of the detected failure as an e-mail, and e-mail transmission means for transmitting the e-mail via the LAN to an address stored in the destination address storage means, The private branch exchange maintenance system, wherein the terminal includes an electronic mail receiving unit that receives the electronic mail from the private branch exchange via the LAN. 3. A private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN and the terminal performs maintenance of the private branch exchange, wherein the terminal creates an electronic mail for a maintenance request. Creating means, e-mail transmitting means for transmitting the e-mail to the private branch exchange via the LAN, and e-mail receiving means for receiving e-mail from the private branch exchange, the private branch exchange, E-mail receiving means for automatically receiving an e-mail from a terminal via the LAN, e-mail analyzing means for analyzing the content of the received e-mail, and maintenance based on the analysis result of the e-mail analyzing means Means for performing the maintenance, and an e-mail for generating the result of the maintenance as a result e-mail. Private branch exchange maintenance system characterized by having a mail creating means, and an electronic mail transmission means for transmitting to the electronic mail receiving means of the terminal through the creation result email the LAN. 4. A private branch exchange maintenance system in which a terminal and a private branch exchange are connected via a LAN and the terminal performs maintenance of the private branch exchange, wherein the terminal creates an electronic mail for a data update request. An e-mail transmitting unit for transmitting the e-mail to the private branch exchange via the LAN, wherein the private branch exchange transmits the e-mail from the terminal to the LA.
E-mail receiving means for automatically receiving data via N; e-mail analyzing means for extracting update data from the received e-mail; data storing means for storing data;
A private branch exchange maintenance system, comprising: a data updating unit that updates data in the data storage unit with the extracted update data.