JPS6158355A - Address inquiry system - Google Patents

Abstract

PURPOSE:To feed a message without delay by feeding an inquiring address and a message to a predetermined computer by an inquiry device. CONSTITUTION:A control division 21 feeds a telegraphic message and a destina tion terminal address to a distribution processing division 23 in a terminal arrangement 1 and then, a processing division 23 keys the destination terminal address indexes a table 22, obtains a corresponding destination terminal address, feeds the telegraphic message and this address to a transmission processing division 25 and from the processing division a message signal is fed. If the destination terminal address is not registered in the table 22, the processing division 23 feeds the telegraphic message and the destination terminal address to a signal assembly processing division 24, an inquiry data is assembled in the processing division 24, and an inquiry signal is fed to a computer 4 through a processing division 25. In this manner, when a terminal station inquires the computer, the message stays long in a repeater and the like by feeding the message together.

Description

[Detailed description of the invention] 〔Technical field〕 The present invention relates to an address inquiry method.

[Prior art]

Conventionally, in this mallet address inquiry method, after an inquiry request is made, a message such as a telegram that requires the inquiry is temporarily held in a terminal device, relay device, etc. until the response is returned. Therefore, when sending messages such as telegrams to multiple destinations in sequence, if there is a message that requires a query for the destination address, a response to the query will be returned and the message will be sent in a state waiting for a response. The disadvantage is that the next message to be sent must wait until the destination address is known, even if the destination address is already known.

〔the purpose〕

An object of the present invention is to provide an address inquiry method that eliminates the above-mentioned drawbacks. [Structure] The method of the present invention includes at least one first device having a function of inquiring the destination device address of a message; at least one second device having a function of replying a corresponding address to the first device in response to an inquiry about the device address from the first device; and data for exchanging data between these devices. and a switched network, and when making the inquiry, the first device sends the message to the second device.

〔Example〕

Next, the present invention will be explained in detail with reference to the drawings.

Referring to FIG. 1, which shows a system used in the method of the present invention, the system includes a plurality of combiner terminal devices 1 to 3.
, a combiator 4 having an address server function, and a data exchange network 5 for exchanging data transmission lines between terminals and computers 1 to 4.

Now, suppose that requests to send a message 20 addressed to terminal 2 and a message 30 addressed to terminal 3 occur consecutively in terminal f1. Furthermore, it is assumed that the terminal device 1 knows the address of the terminal device 3 but does not know the address of the terminal device 2. At this time,
The terminal device 1 inputs the destination address field 41. in which the address of the computer 1 is set. Source address field 42 where you set your own address. An inquiry signal (M4
(see figure) is sent to the combiator 4 via the data exchange network 5. As a result, the message 20 no longer exists in the terminal device 1, so the terminal device 1 stores the destination address field 31.0 in which the address of the terminal 3 is set. A message signal (WJ
(See Figure 3) for data exchange M45 It: via terminal equipment L
■ Send to 3. On the other hand, when the combiator 4 receives the inquiry signal, it checks the address of the terminal device i2 from the terminal name displayed in the inquiry field 43. When the computer 4 learns the address of the inquired terminal,
Destination field 51 in which the address of the terminal device 1 is set.
Source address field 5 where you set your own address
22 Sends a response signal (FIG. 5) to the terminal device 1 via the data exchange network 5. ■.

Upon receiving this response signal, the terminal device f11 sets the address of the terminal device 2 displayed in the response field 53 in the destination field 31, and sends the message signal set in the message field 33 from the content t of the message field 54 to the data exchange network. 5
It is sent to the terminal device 2 via.

In this way, the message 20 can be sent without waiting for the message 30 to be sent.

Referring to FIG. 2, a terminal device 1 used in the method of the present invention
- 3 respectively include a control unit 21, a table 22 recording the correspondence between terminal names and terminal addresses, distribution processing units 23 and 27, a signal assembly processing unit 24, and a transmission processing unit 25.
, a reception processing section 26 , and a signal decomposition processing section 28 .

The operation of the address inquiry mentioned above will be explained with reference to FIG. The control unit 21 passes the transmission message and the destination terminal name to the distribution processing unit 23. The distribution processing unit 23 indexes the table 22 using the destination terminal name as a key, obtains the corresponding destination terminal address, and sends the transmission message and this address to the transmission processing unit 25.
give it to The transmission processing unit 25 sends out the passed message as a message signal.

If the destination terminal name is not registered in the table 22, the distribution processing section 23 passes the transmission message and the destination terminal name to the signal assembly processing section 241C. The processing unit 24 assembles inquiry data including the passed destination terminal name and transmission message, obtains the address of the computer 4 by referring to the table 22, and sends this inquiry data and the address of the computer 4 to the transmission processing unit 25. The transmission processing unit 25 sends out an inquiry signal based on the passed information.

On the other hand, the reception processing section 26 passes the message field included in the received signal and the source address field of the signal to the distribution processing section 27, and the distribution processing section 27 refers to the table 22 and determines that the source address field of the signal is the computer 4. Check whether the address matches. If they match, it is determined that the received signal is a response signal to the inquiry signal, and the received response signal is passed to the disassembly processing unit 28, which disassembles the received response signal into a response field and a message field. Then, it is passed to these all transmission processing sections 25, and the transmission processing section 25 sends out a message signal according to the address displayed in the passed response field.

If the source address field of the received signal does not match the address of the computer 4, the distribution processing unit 2
7 passes the message field passed from the reception processing unit 26 to the control unit 1.

Referring to FIG. 6, another system used in the method of the present invention is comprised of a plurality of terminal devices 1 to 3, a combiator 4, a relay device 6, and a data exchange network 5. Assume that the relay device 6 does not know the address of the device 2 but knows the address of the device 3. Now, suppose that the first message signal containing the message 20 addressed to the device 2 arrives at the device 6, and then the second message signal containing the message 30 addressed to the device 3 arrives. j The relay device 6 generates an inquiry signal from the first message signal that arrives first, and sends it to the combiator 4. At this point, since the first telegram signal does not exist, the second telegram signal whose destination address is known, which subsequently arrived, is immediately relayed to the device 3 and sent out.

On the other hand, the computer 4 generates all response signals in response to the inquiry from the relay device 6 and sends them to the relay device 6.

The relay device 6 learns the address of the terminal device 2 from this response signal, generates a telegram signal, and relays it to the device 2.

〔effect〕

As described above, the present invention has the advantage that a message can be sent without delay because a message inquiring about an address does not remain in a terminal device, a relay device, etc.

[Brief explanation of drawings]

Fig. 1 is a block diagram showing a system used in the method of the present invention, Fig. 2 is a block diagram of a terminal device used in the method of the present invention, Fig. 3 is a diagram showing a telegram signal, and Fig. 4 is a diagram showing an inquiry signal. 5 is a diagram showing a response signal, and FIG. 6 is a block diagram showing another system used in the method of the present invention. In the figure, 1, 2.3...terminal device, 4...
...computer, 5...data exchange network,
6...Relay device, 21...Control unit, 2
2...Table, 23...Distribution processing unit, 24...Assembling processing unit, 25...Transmission processing unit, 26...Reception Processing section, 27...
...Distribution processing unit, 28...Disassembly processing unit.
-Representative Patent Attorney Susumu Uchihara 1', %/ Shin 1

Claims (1)

[Claims] at least one first device having a function of inquiring a message destination device address; and a function of replying a corresponding address to the first device in response to the device address inquiry from the first device. at least one having
and a data exchange network for exchanging data between these devices, and when making the inquiry, the first device also sends the message to the second device. Address inquiry method.