JPH01209572A - Information retrieving system - Google Patents

Abstract

PURPOSE:To shorten the application time of the subscriber line of a computer containing a data base by retrieving a table of contents requiring the transmission of detailed information between a data terminal and a switchboard. CONSTITUTION:When a request is received from a data terminal 6 for transmission of a table of contents, a switchboard 1 refers to a table-of-contents managing file 5 via a transmission means 7 to send the requested table of contents to the terminal 6. When the terminal 6 instructs the table of contents requiring the transmission of the detailed information, the switchboard 1 refers to the file 5 via an instruction connecting means 8 to instruct the transmission of the detailed information on the table of contents of a computer having a table of contents of the detailed information. At the same time, the switchboard 1 connects the computer to the terminal 6 via a subscriber line. Therefore, the subscriber line which stores the computer is not used before a table of contents requiring the transmission of the detailed information is detected. Thus the application time of said subscriber line is shortened and the effective application is ensured for the subscriber line.

Description

[Detailed Description of the Invention] [Summary] The present invention relates to an information retrieval method in which a plurality of computers each having a database and a data terminal are housed in an exchange, and detailed information in the database is retrieved from the data terminal via a table of contents. The purpose of this system is to provide an information retrieval method that does not require the user to know the telephone number of the computer that has the database and can shorten the usage time of the subscriber line that houses the computer that has the database. If you have a stored table of contents management file and are requested to send a table of contents from the data terminal,
A transmitting means that refers to the table of contents management file and transmits the table of contents to the data terminal, and when the data terminal is instructed to select a table of contents for which detailed information transmission is requested from among the table of contents transmitted by the transmitting means. comprises an instruction connection means for referring to the table of contents management file and instructing a computer having the table of contents of the detailed information to transmit detailed information of the table of contents, and connecting the computer and the data terminal. do.

[Industrial application field]

The present invention relates to an improvement in an information search method in which a plurality of computers each having a database and a data terminal are housed in an exchange, and the data terminal searches for detailed information in the database via a table of contents.

[Conventional technology]

A conventional example will be explained below using figures.

FIG. 6 is a block diagram of a conventional information retrieval system.

In FIG. 6, the exchange unit 18 and the CP that controls the exchange unit 18
Switch 1" with U19 has subscriber line 15.16.1
7 to the database 11 of information provider A, respectively.
Computer with 2. Computer with database 12 of information provider company B3. A computer 4 having a database 13 of 0 information providing companies is housed,
A network control unit (hereinafter referred to as NCU) 10 is accommodated via a subscriber line 14, and a data terminal 6 such as a personal computer is connected to the network control unit IO.

Normally, a plurality of data terminals are accommodated, but only one is shown here as a representative, and three computers with databases are shown as an example.

These data sources 11 and 12.13 have a table of contents and a summary showing the contents of each item, and if requested by the data terminal 6, the computer 2.3.4 will transmit the table of contents and summary. .

Also, normally the computers 2 and 3.4 each have a plurality of subscriber lines and use representative numbers, but here, the subscriber lines 15, 16.1? are used as representative numbers. It is shown in

These points are the same in the case of FIG. 2, which will be explained later.

In FIG. 6, to search for information from the data terminal 6,
Using NCUIO, for example, send the dial number of the computer 2, connect to the computer 2 via the exchange 1'', send the table of contents and summary of the database 11, and if there is a table of contents for which you want to send detailed information, send the detailed information. Specify the table of contents that you want to send and make a transmission request.

Then, the computer 2 transmits detailed information regarding the specified table of contents.

If there is no table of contents for which detailed information is to be sent, the process is aborted, the dial number of the next computer 3 is sent, the computer 3 is connected via exchange 1, and the table of contents and summary of the database 12 is sent. It works the same way.

Such operations are performed until a table of contents for which detailed information is to be sent is found, and detailed information is sent from the database containing the table of contents for which detailed information is to be sent.

[Problem to be solved by the invention]

However, the above information retrieval method has a problem in that the data terminal must know the telephone numbers of the computers 2, 3, and 4. Also, the subscriber line 15.16.17 that accommodates the computer 2.3.4 is used to search for the table of contents for which detailed information is to be sent from the table of contents and summary transmission request from the data terminal, and to request cancellation or detailed information transmission. This is until it is sent.

This subscriber line is used by multiple data terminals to connect to a computer for information retrieval, so the time each data terminal uses it must be short, but in the conventional information retrieval method, data This system is also used from the terminal to request the transmission of the table of contents and summary to the table of contents search that sends detailed information, which poses a problem in that it takes a long time to use.

The present invention eliminates the need to know the telephone number of the computer that has the database, performs the table of contents search that sends detailed information at the data terminal and switch, and calculates the usage time of the subscriber line that houses the computer that has the database. The purpose is to provide a short and easy information retrieval method.

[Means to solve the problem]

The first figure is a block diagram of the principle of the present invention.

As shown in FIG. 1, the exchange 1 houses a plurality of computers 2, 3, 4 each having a database, and a data terminal 6, and the data terminal 6 searches for detailed information in the database through a table of contents. In doing so, the exchange 1 is equipped with a table of contents management file 5 that stores the table of contents of all databases.

When the exchange 1 is requested to transmit the table of contents by the data terminal 6, a transmitting means 7 refers to the table of contents management file 5 and transmits the table of contents to the data terminal 6, and the data terminal 6 transmits the table of contents. When a table of contents for which detailed information transmission is requested among the table of contents transmitted by the means 7 is specified, the detailed information of the table of contents is transmitted to the computer that has the table of contents of the detailed information by referring to the table of contents management file 5. The configuration includes an instruction connection means 8 for instructing the computer and for connecting the computer and the data terminal 6.

[For production]

According to the present invention, the table of contents management file 5 of the exchange 1 has the table of contents of all databases, and the data terminal 6 can
For example, when there is a request to transmit the table of contents of the database of the computer 2, the exchange 1 uses the transmitting means 7 to refer to the table of contents management file 5 and transmit the requested table of contents to the data terminal 6.

The data terminal 6 searches for a table of contents for which detailed information is to be transmitted, and if it is not found, it is aborted, and then, for example, makes a request to transmit a table of contents in the database of the computer 3, until a table of contents for which detailed information is to be transmitted is found. conduct.

During this time, subscriber line 15.16.17, which houses computer 2.3.4, is not used.

The table of contents for which you want to send detailed information is found, and the data terminal 6
When the user instructs the table of contents for which transmission of detailed information is requested, the exchange 1 uses the instruction connection means 8 to refer to the table of contents management file 5 and instruct the computer that has the table of contents of the detailed information to transmit the detailed information of the table of contents. At the same time, the computer and the data terminal 6 are connected via a subscriber line.

Then, the computer sends detailed information of this table of contents to the data terminal 6.

Therefore, the subscriber line accommodating the computer is not used until the table of contents for which detailed information is to be transmitted is found, so the usage time of the subscriber line accommodating the computer is short (and can be used effectively).

Further, the data terminal 6 communicates with the exchange 1 and transmits the detailed information by simply indicating the table of contents for which the detailed information is to be transmitted, so there is no need to remember the telephone number of the computer.

〔Example〕

An embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 2 is a block diagram of an information retrieval system according to an embodiment of the present invention, FIG. 3 is a flowchart of information retrieval according to an embodiment of the present invention, FIG. 4 is a flowchart of creating a table of contents management file according to an embodiment of the present invention, and FIG. FIG. 5 is a diagram showing the basic screen of the embodiment of the present invention.

In FIG. 2, a table of contents management file 5 is provided under the CPUI 9 of the exchange l.

The method of creating this table of contents management file 5 will be explained using FIGS. 4 and 5.

In step l of FIG. 4, the fifth
As shown in the figure, information provider number, computer number,
A basic screen with a table of contents and summary section showing the contents of each item in the database is prepared.

In step 2, each computer 2.3 shown in FIG.
．． 4 are sequentially connected to exchange l, and databases 11 and 1 are connected to
From 2.13, information provider number.

A computer number, a table of contents and a summary indicating the contents of each item of the database are transmitted, and in step 3 they are stored in the five items of the basic screen shown in FIG. 5 of the table of contents management file 5, respectively.

Note that this may be stored directly in the table of contents management file 5 via the CPU 19 of the exchange 1, but it takes time and effort.

Further, since information retrieval is normally performed on a membership basis, the data terminal 6 registers as a member with the exchange 1 and obtains a membership number.

Next, the exchange 1 stores programs for the transmitting means 7 and instruction connecting means 8 shown in FIG.
Information retrieval will be described with reference to FIG. 3, assuming that the UI 9 reads and processes this.

In step 1, the data terminal 6 such as a personal computer
Using IO, send the dial number for introducing the contents of the table of contents management facility.

Then, in step 2, the CPU 19 of the exchange 1 is manually operated, and the CPU 19 learns of the table of contents introduction request.

Next, in step 3, when the membership number is input from the data terminal 6, the CPU 19 of the exchange 1 checks in step 4, and if the number is registered, it replies OK to search and confirms that the number is registered. If not, the answer in step 12 is that the search is not possible.

If the search is OK, in step 6, the data terminal 6
Request the table of contents and summary using the specified code. If the entire table of contents and summary is sent at once, the amount of information would be too large, so in order to send, for example, the table of contents and summary of the database of the desired information provider, it is usually necessary to send the information provider number, table of contents, and summary. Limit the amount of information sent, such as by making a request.

Then, in step 7, the CPU 19 of the exchange 1 refers to the table of contents management file 5 using the program of the transmitting means 7, and transmits, for example, the table of contents and summary of the database 11 of information provider A to the data terminal 6. .

In step 8, the data terminal 6 displays the transmitted table of contents and summary on the display section, and specifies a table of contents for transmitting detailed information from within the displayed table of contents and requests transmission.

Then, the CPU 9 of the exchange 1 refers to the table of contents management file 5 using the program of the instruction connection means 8, and instructs the computer that has this table of contents, for example 2, to send detailed information about this table of contents to the computer 2 using a predetermined code. Then, the computer 2 and the data terminal 6 are connected via the exchange section 18.

Then, in step 10, the computer 2 transmits detailed information of the specified table of contents to the data terminal 6, and in step 11, the data terminal 6 receives and displays the transmitted detailed information.

That is, until the table of contents for which detailed information is to be sent is searched for, it is carried out between the data terminal 6 and the exchange 1, and after the table of contents is found, the detailed information is sent using the subscriber line 15 that accommodates a computer, for example 2, that has a database. Since the subscriber line 15 is used for a very short time, the usage efficiency is improved.

The search for the table of contents for which detailed information is to be sent is carried out between the data terminal 6 and the exchange 1, and if the table of contents is found, the data terminal 6 instructs the table of contents and the desired detailed information is transmitted. There is no need to know the phone number of computer 2.3.4.

〔Effect of the invention〕

As explained in detail above, according to the present invention, the usage time of a subscriber line of a computer having a database can be shortened.
This has the effect of improving usage efficiency and eliminating the need to know the telephone number of the computer that has the database.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of the principle of the present invention. FIG. 2 is a block diagram of an information retrieval system according to an embodiment of the present invention. FIG. 3 is a flowchart of information retrieval according to an embodiment of the present invention. FIG. 5 is a diagram showing the basic screen of the embodiment of the present invention, and FIG. 6 is a block diagram of a conventional information retrieval system. In the figure, 1.1 is an exchange, 2.3.4 is a computer, 5 is a table of contents management file, 6 is a data terminal, 7 is a transmission means, 8 is an instruction connection means, 10 is a network control device, 11.12. 13 is a database, 14 to 17 are subscriber lines, 18 is a switching section, and 19 is a CPU. The Fruit of a Small Invention) Seita'1's Pull 774 Rult Father's Hronayat-tei 4 Mouths

Claims (1)

[Claims] The exchange (1) houses a plurality of computers (2, 3, 4) each having a database, and a data terminal (6), and the data terminal (6) stores detailed information in the database. When searching through the table of contents, the exchange (1) is equipped with a table of contents management file (5) that stores the table of contents of all databases, and when a table of contents transmission is requested from the data terminal (6). a transmission means (7) that refers to the table of contents management file (5) and transmits the table of contents to the data terminal (6); When a table of contents of the table of contents for which transmission of detailed information is requested is specified, refer to the table of contents management file (5) and instruct the computer that has the table of contents of the detailed information to transmit the detailed information of the table of contents. , an information retrieval system characterized by comprising an instruction connection means (8) for connecting the computer and the data terminal (6).