JPH0797775B2 - Electronic bulletin board system - Google Patents

Description

DETAILED DESCRIPTION [Table of Contents] Outline Industrial field of application Conventional technology Problems to be solved by the invention Means for solving the problems First principle configuration of the second invention Second configuration of the invention Embodiments Embodiments of the first invention Embodiments of the second invention [Effects of the invention] [Overview] An electronic bulletin board system for performing a message bulletin board service between terminals accommodated in an exchange by an application processor provided in the exchange. , The bulletin board system that controls each user so that each user does not post a post that has already been viewed or a post that has expired when reading a post, and the registered post has passed its expiration date The purpose is to provide a bulletin board service control method that prevents it from being automatically posted, and is posted in a state in which it can be referenced by multiple users. A bulletin board list that manages a plurality of information lists, a user bulletin list that manages a reference contrast information list for each user, and an output target deletion unit that deletes an arbitrary output target from the user bulletin list, Of the information that is registered in the bulletin board list but not registered in the user bulletin list, triggered by a reference request from the user, the user whose registration date and time is after the update date and time of the user bulletin list. It is configured to include a reference processing unit that is added to the bulletin board list and outputs arbitrary information designated by the user from the bulletin board list for the user to the user.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electronic bulletin board system for providing a message bulletin board service between terminals accommodated in an exchange by an application processor provided in the exchange.

Recently, a private branch exchange (PBX) and a public exchange have been put into practical use, which use a high-performance terminal with a character display function as a terminal for ISDN (Integrated Service Digital Network) to transmit digital information other than voice.

Various services for subscribers are conceived in such an exchange, one of which is a message (voice, text,
Image) is transferred to a desired party upon request (called a mail service). Although the bulletin board service is implemented using a technology similar to that of the mail service, only the necessary bulletin information is always provided to individual users of the bulletin board and old information whose expiration date has expired is included in the bulletin board information. It is desirable not to include it.

[Prior Art] A conventional basic system configuration diagram is shown in FIG. 12, and a hardware configuration diagram of a terminal in the basic system is shown in FIG.
Figure 14 shows the AP connection and the hardware configuration of the AP.

In the figure, 120 is a terminal with a plurality of character display functions, 121 is a private branch exchange, 122 is an exchange control processor, 123 is an application processor (AP), and 124 is a hard disk.

Application processor (hereinafter simply referred to as AP)
123 is the switching control processor and the ISDN I interface (2
B + D: Two information channels of 64 Kbps and one control channel) are connected, and connection control between terminals is also performed, but this is a separate configuration from the exchange control processor for load distribution.

In the hardware configuration diagram of the terminal of FIG. 13, the ISDN transmission control unit 132 controls transmission with the exchange control processor 122 and AP of the exchange, and the CPU 131 has a main memory 140, a display 137 which is an input / output device of the terminal, and a static memory. A control process for realizing a terminal function is performed by the electrically coupled transparent tablet 139, the ISDN transmission control unit 132, and the like. In FIG. 14, the AP 150 is connected to the exchange 121 and the exchange control processor 122 by interfaces 152 and 153, and exchanges data with the display 157, the floppy disk drive 159, the hard disk drive 165 and the like by the CPU 151 and the main memory 154 and the interfaces 152 and 153. It transmits and receives data to and from the terminal and executes information processing according to an application program for servicing the terminal.

It is also possible to have a plurality of APs. Normally, one AP is provided with several service application programs as software, and an application management unit (not shown) activates an application in response to a request from a terminal, The correspondence between applications and terminals is managed.

This application has MTA (Message Transfer System) to realize MHS (Message Handling System).
Agent) and UA (User Agent) are provided. MTA is
It has a function of forwarding a message (hereinafter, used as a synonym of mail) according to a destination, which corresponds to the work of forwarding a letter between post offices. The UA exists so that it can be used by the user and performs a function similar to that of a PO Box. It has a mailbox function that receives messages from the MTA and stores them until the user retrieves them, and a function that edits / creates messages and sends them to the MTA. In this system (Fig. 12), the bulletin board service is performed using the MTA and UA.

The bulletin board service is similar to MHS mail forwarding, except that the destination is not specified. The user who wants to post is selected by selecting one message and telling the system to "post" (command input from the terminal). Documents registered on the bulletin board can be viewed by all users in the system.

Figure 15 shows the directory structure on the hard disk.
As shown in the figure, in the conventional bulletin board system, MTA and U
Since A exists in the same AP, the hierarchical directory is stored on the hard disk (see 20 in Fig. 1 and 164, 165 in Fig. 14).
I have it inside and manage the bulletin board. The directories managed by the MTA are the directory MTA and the directory BBS (Bulletin
It is a file (management file MNG, and message body information MAIL2 to MAIL5) linked under Bord Service: bulletin board service, and the directory managed by the UA is under the user name directory (USER1 to USERn). Files (management file MNG, message body information MAIL).

For example, suppose user 1 issues a request to the system to post mail 1 (which user 1 has already created and filed as mail 1). Then, the file mail 1 is separated from under the directory USER1 by the MTA and linked under the directory BBS. At this time, the management information of this file is the directory USER
It is deleted from the management file (MNG) under 1 and additionally registered in the management file MNG under the directory BBS. As a result, the mail 1 can be referenced by all users.

FIG. 16 shows the above-mentioned registration request from the terminal and the processing procedure in the UA and MTA in the AP as a conventional bulletin registration sequence diagram.

Next, when the user 2 refers to the bulletin, when the bulletin reading request from the user 2 arrives at the system, all the mail names posted by the MTA are read from the management file MNG under the directory BBS, and the user 2 Send to. When the user 2 selects the bulletin board that he wants to read, the UA reads the information of the corresponding bulletin board from the hard disk and displays it on the terminal.

The read request from this terminal and the processing procedure in the UA and MTA in the AP are shown in FIG. 17 as a conventional bulletin read processing sequence diagram.

Referring to Fig. 17, when a terminal sends a bulletin board list transmission request (Fig. 171), the UA sends the request to the MTA, and the MTA sends the bulletin board list to the management file MNG under BBS.
It is read from (at 173), and the total number of bulletin boards registered and the bulletin board list (title, file number, etc.) are sent to the terminal through the UA. The terminal looks at the total number of bulletin boards registered and the bulletin board list, and selects and requests the desired bulletin board (at 179). When the UA in the AP receives the request, it retrieves the file name of the corresponding bulletin board from the bulletin list, reads the information of the bulletin board from the hard disk, and sends it to the terminal (step 181).

FIG. 18 shows a format of a communication signal exchanged between the terminal and the AP in the sequence diagrams shown in FIGS. 16 and 17 described above.

F1 to F6 in FIG. 18 represent symbols used in FIGS. 16 and 17.

[Problems to be Solved by the Invention] In the above-described conventional method, when the number of posted items increases,
The number of bulletin boards sent from MTA increases. Therefore, not only the capacity of the memory for accumulating the bulletin list and the bulletin body (the content of the message) is increased, but also it is necessary for the user to see the fact that the bulletin list should be viewed by the user. There is a problem that the user misses a necessary bulletin board because the missing information is provided to the user together.

Moreover, in such a bulletin board service, F1, F2 in FIG.
As shown in the format, when the user registered the bulletin, the expiration date was specified, but even if the bulletin expired, the list and the main body were retained and the bulletin was continued.

The reason is that the management of deletion of the bulletin was left to the registrant of the bulletin. If there are many bulletins that have passed the expiration date, there is a problem that the storage capacity of the storage device (hard disk) becomes insufficient, and the user is made to see the bulletins that have passed the expiration date.

The present invention is an electronic bulletin board system that controls each user so as not to post a post that has already been viewed or a post that has expired when each user reads the post, and the registered post has an expiration date. The purpose is to provide an electronic bulletin board system that prevents the information from being automatically posted after passing.

[Means for Solving the Problems] Principle Configuration Diagram of First Invention FIG. 1 shows a principle configuration diagram of the first invention of the present application.

In FIG. 1, 10 is a terminal, 11 is an exchange, 12 is an application processor (AP), 13 is a transmission / reception buffer unit, 14 is a request determination unit, 15 is a user correspondence control unit, 16 is a notice reading unit, and 17 is a notice deletion unit. , 18 is a bulletin registration unit, 19 is a message transfer control unit, and 20 is a hard disk.

In the configuration shown in FIG. 1, the bulletin board common to all users who receive the bulletin board service is managed by the message transfer control unit (corresponding to the MTA of the conventional example) 19 in the bulletin board service file stored in the hard disk 20. In addition to the list BBS, a user bulletin list BB newly provided for the user to be managed by the user correspondence control unit (corresponding to the conventional UA)
L1 ... BBLn are provided.

In the invention shown in FIG. 1, a bulletin list is provided for each user, the bulletin list for the user is updated every time a read request from the user is generated, unnecessary bulletins are deleted, and a new bulletin is added. Then, the bulletin board is provided to the user, and the bulletin board is deleted from the common bulletin board list in response to a request from each user to delete the bulletin board.

FIG. 2 shows a principle block diagram of the second invention of the present application.

21 in FIG. 2 is an application processor (displayed on the AP)
In that, 22 is a transmission / reception buffer unit, 23 is a request determination unit,
24 is a user correspondence control unit, 241 is a bulletin registration unit, 242 is a bulletin reading unit, 243 is a bulletin deletion unit, 25 is a message transfer control unit, 26 is a management file updating unit, 27 is a timer, and 28 is a hard disk.

In the second aspect of the invention, the management file updating section 26 is provided in the message transfer control section 25 without providing the bulletin list corresponding to the user as in the first aspect of the invention, and the bulletin file common to the users is activated by being activated by a constant cycle input. It is updated based on the deadline.

[Operation] To explain the operation of the basic configuration diagram of the first invention shown in FIG. 1, the terminal is connected to the application processor (AP) 12 via the exchange. Transmit / receive buffer section 13 of AP12
The request determination unit 14 determines which process in the bulletin board service is requested via the command and determines the command, and depending on the result, the bulletin reading unit 16, the bulletin deletion unit 17, or the bulletin registration unit 18 in the user response control unit 15 Either one starts.

When the bulletin board reading is requested, the bulletin board list BBL1 for user
Reading of the user bulletin list BBLn (in the case of user n) corresponding to that user in the BBLn, 202 is the user corresponding control unit.
This is executed by the file read control 15 and at the same time requests the message transfer control unit 19 to read the bulletin list BBS, 201 under its control.

When the BBS and the BBLn for this user n are obtained, the comparing means 161 of the bulletin reading unit 16 compares them. In this comparison, a list in BBS but not in BBL, or a BBL in B
When a list not found in the BS is detected, the user bulletin list updating means 162 or the bulletin list updating means 163 updates BBLn or BBS, deletes the unnecessary list, and adds the necessary list to the user bulletin list BBLn. It is created and the file of the information body is updated accordingly. Then, the updated list for the user is transmitted to the terminal 10.

When the list is displayed on the terminal, the user of the terminal designates what he / she wants to see and sends it, and the bulletin reader 16 takes out the corresponding bulletin body and transmits it to the terminal.

When the user wants to delete the message he / she posted and posted, the user sends a deletion request from the terminal.

As a result, the bulletin board deletion unit 17 of the user correspondence control unit is activated, and the user bulletin board list deletion unit 171 requests the message transfer control unit 19 for the bulletin list registered by the user. The message transfer control unit 19 reads the bulletin list posted by the user based on the BBS, sends it to the user correspondence control unit 15, and then sends it to the terminal. If you look at that list and point to the list you want to delete,
The notice deletion unit 17 receives this, and the message transfer control unit 19
At, delete the corresponding posted file from BBS.

Next, the operation of the principle configuration diagram of the second invention shown in FIG. 2 will be described. The management file updating unit 26 of the message transfer control unit 25 is activated by the activation input periodically generated in the AP 21. As a result, the management file update unit 26 causes the bulletin list BB
Update processing for all bulletin lists from S. In that case, the value of the expiration date included in each list is compared with the value of the timer displaying the current date and time information, and the bulletin list whose expiration date has expired is deleted from the BBS.

[Embodiment] Embodiment of the first invention The configuration of the embodiment of the first invention of the present application will be described with reference to Figs. 3 to 8.

FIG. 3 shows a directory configuration diagram in the hard disk including the user bulletin list (BBL1 to BBLn) added by the present invention.

As shown in FIG. 3, user bulletin lists BBL1 to n are provided for the respective users USER1 to n.

Figure 4 shows the contents of the bulletin boards in BBS and UA,
The management file MNG in the BBS shown in FIG. Items such as those shown in are included for each posting name. That is, it consists of a bulletin board name, a registrant name, a registration date and time, and a file name in the hard disk. In addition, the bulletin list provided for each user in the UA is shown in FIG. The update date and time, the bulletin name, and the file name on the hard disk are included as shown in.

Next, in AP, it is described how the hard disk is accessed for each application such as bulletin registration processing, bulletin reading processing and bulletin registration processing.
An outline will be given using the configuration diagram for file access from the application shown in the figure. When the bulletin board service, which is one of a plurality of applications, is being performed in the application section in the AP, a path name is assigned to the bulletin name given by the user and managed by the correspondence management table.
When a bulletin board service is used to read or write a bulletin board name, it is given to the file management of the operating system (OS) along with the path name and buffer address (address of the AP's buffer memory) corresponding to the bulletin board name. The name is converted to the physical storage location on the hard disk. The converted physical storage position is given to the hard disk, and desired data is read and read to the buffer memory or stored in the hard disk from the buffer memory.

FIGS. 6 to 8 show the processing sequence of the embodiment in the application processor in response to the request of the terminal by using the above-mentioned access technology and the above-mentioned bulletin list file corresponding to the user.

In the sequence diagram of this embodiment, the control of the bulletin board service in the AP is performed by the UA (corresponding to the user-corresponding control unit in FIG. 1).
And MTA (corresponding to the message transfer control unit in FIG. 1) are executed by mutual processing, and hereinafter simply referred to as UA and MTA.

Fig. 6 shows a bulletin reading process sequence diagram, and its contents are explained. When a request for sending a bulletin board list is sent from the terminal (60 in Fig. 6), it is received by the UA of the AP via the exchange and the request is received. Determine and request list from MTA. MTA
Reads the bulletin board list from the hard disk file MNG under BBS control (62), and sends the bulletin board registration count and the bulletin board list (for the total number of registrations) to the UA. The UA reads the user bulletin list BBL managed here (64).

The UA performs the file update process by using the BBS from the MTA and the read BBL of the user. A flow chart of the file update processing is shown in FIG.

Referring to FIG. 7, when BBS and BBL are acquired,
Both pieces of information are compared (700 in FIG. 7), and if there is a match, no processing is performed on the information (no need to update). If there is a mismatch, it is determined whether the mismatch information is in the BBS and not in the BBL (Ibid.
0). If YES in this determination, it is possible that the information that is only in that BBS is the one that was deleted from the BBL file at the request of the user or that the information was newly posted. It is determined whether the date and time is newer than the BBL update date and time (at 740). The registration date and update date and time are shown in FIG. And b. Is shown in.

As a result, if the registration date is newer, the bulletin is a newly registered bulletin, so information regarding the bulletin is registered in the BBL file (at 750). If the update date and time is newer, it is assumed that the update date has been deleted and no processing is performed.

If it is found in step 720 above that the bulletin is in the BBL and not in the BBS, it is determined that the bulletin board has already been deleted, and the information of the bulletin board in the BBL file is deleted.

When the above update processing is completed, and returning to FIG. 6 for explanation, all the posted numbers and the posted list registered in the updated BBL are transmitted to the terminal (FIGS. 67 and 68 in FIG. 6). When the user sees this on the terminal display and wants to see the contents from the list, the user sends the number. In response to this, the UA retrieves the file name (MAIL number) in the hard disk of the corresponding bulletin from the saved BBL list, reads the bulletin body from the hard disk (at 71), and sends it to the terminal for display.

Next, the bulletin deletion processing sequence diagram shown in FIG. 8 will be described.

In this case, when a bulletin board deletion list request is issued from the terminal with a user ID (identification number) and transmitted via the exchange (Fig. 8), the request is discriminated by the UA, and the request is
Sent to MTA. When the MTA reads the bulletin board list from the hard disk, sends the total number of bulletins registered by the user and each list (83, 84), it is sent to the terminal via the UA. When the user sees the bulletin list on the terminal and selects the list to be deleted, the information indicating the order of the list is transmitted to the UA (at 88). When you receive this information
The UA sends the user ID as a parameter to the MTA. MTA
Then, when the information is received, a file (MAIL) specified based on the information in the bulletin list of the corresponding user that was saved
UNLINK from under the directory BBS on the hard disk
(Unlink) and then manage files MNG under BBS
Delete the information on the bulletin board from within (90).

Then, when the MTA sends a deletion end notification to the UA, the UA sends a deletion end notification to the terminal.

Some of the communication signal formats used in the processing sequences shown in FIGS. 6 and 8 are shown in FIG.
Shown as 7, F8, and other F1 to F6 are the same as the conventional example (see FIG. 18).

Second Embodiment of the Invention Next, FIG. 10 shows a management file search processing sequence according to an embodiment of the second invention.

The UA sends the posting message (post body) including the expiration date and the posting start date and time sent by the registration request from the terminal.
When sent to the MTA, the MTA links the file (message body) under the directory BBS as MAILi (i is a number), and registers the file name, user ID, expiration date, posting start date, etc. in the management file MNG. A diagram showing the contents of this BBS management file is shown in FIG.

The process of checking the expiration date of the bulletin registered in this way is the management file search process of FIG. The management file search is a periodic task that is started every 30 seconds. When the management program (OS) starts the task, the task is started and the BBS management file is read from the hard disk. Then, the expiration date of each read file is compared with the current time value to determine whether the expiration date has already passed (120 in FIG. 10). If it is determined by this determination that the time limit has already expired, the file in the hard disk is UNLINKed based on the file name, and the corresponding bulletin information in the management file is deleted (step 130). If the deadline has not passed, do nothing for that item.

The processes of steps 120 to 130 are repeated for the number of BBS management files registered and posted, and when completed, the BBS management file for which the deletion update process has been completed is written to the hard disk, and the files before this time are cleared.

[Effect of the Invention] According to the first invention, it becomes easier to selectively select and refer to the bulletin boards necessary for the user regardless of the total number of bulletin boards. Therefore, the original meaning of the bulletin board is the unspecified person. It is possible to efficiently transmit information to and to increase the frequency of using the posting service.

According to the second aspect of the present invention, the system manages and deletes the bulletin board whose expiration date has passed, so that the capacity of the storage device (hard disk) can be effectively used. In addition, since the user will not see the already invalid bulletin board,
It becomes possible to efficiently transmit information.

[Brief description of drawings]

FIG. 1 is a block diagram showing the principle of the first invention, FIG. 2 is a block diagram showing the principle of the second invention, FIG. 3 is a block diagram showing the directory structure after the BBL is added, and FIG. 4 is a block diagram in the BBS and the UA. Bulletin list diagram, Fig. 5 is a block diagram of file access from applications,
FIG. 6 is a bulletin read processing sequence diagram of the first invention, FIG. 7 is a file update processing flow chart in FIG. 6, FIG. 8 is a bulletin deletion processing sequence diagram of the first invention, and FIG. FIG. 10 is a diagram showing a part of the communication signal format used in the sequence, FIG. 10 is a sequence diagram of a management file search process of the second invention, FIG. 11 is a diagram showing the contents of a BBS management file, and FIG. 12 is a conventional diagram. Basic system configuration diagram, Fig. 13 is a hardware configuration diagram of the terminal, and Fig. 14 is a connection between the exchange and AP and AP
Hardware configuration diagram, FIG. 15 is a directory configuration diagram in a hard disk, FIG. 16 is a conventional bulletin registration sequence diagram, FIG. 17 is a conventional bulletin reading processing sequence diagram, and FIG.
The figure shows a communication signal format. In FIGS. 1 and 2, 10: terminal 11: switch 12, 21: application processor (AP) 13, 22: transmission / reception buffer unit 14, 23: request determination unit 15, 24: user response control unit 16,242: bulletin reading Part 17,243: Bulletin deletion unit 18,241: Bulletin registration unit 19,25: Message transfer control unit 20,28: Hard disk 26: Management file update unit 27: Timer

Claims (1)

[Claims] 1. A bulletin board list for managing a list of a plurality of pieces of information posted in a state that can be referred to by a plurality of users, and a bulletin board list for a user for managing a reference-contrast information list for each user, The output target deleting means for deleting an arbitrary output target from the user bulletin list and the reference request from the user have triggered the registration, but it is registered in the bulletin board list but not in the user bulletin list. Of the information that is not included, information whose registration date and time is after the update date and time of the user bulletin list is added to the user bulletin list, and any information specified by the user from the user bulletin list is added to the user. An electronic bulletin board system comprising a reference processing unit that outputs the information to the electronic bulletin board system.