JPH0669182B2 - Undelivered destination resend method - Google Patents

Description

Description: TECHNICAL FIELD OF THE INVENTION The present invention relates to an unreachable destination retransmission method in a data exchange method for transmitting data between a transmission terminal and a reception terminal via a data storage / exchange device.

[Technical Background of the Invention] In such a data exchange method, when data is transmitted from a transmitting terminal to a receiving terminal via a data storing and switching apparatus, the data received by the data storing and switching apparatus has a fixed time (management time). If data cannot be transmitted to the destination receiving terminal within a certain period of time, or if transmission to a certain receiving terminal cannot be performed within a certain call interval (within the number of management calls), so-called unreachable data may occur. This occurs, for example, when the destination receiving terminal is transmitting data from another transmitting terminal and the transmitting terminal attempts to transmit data to this receiving terminal. For this reason, there has been the following method for processing unachieved data.

(1) When the undelivered data is generated, the display device connected to the data storage / exchange device can display the generation of the undelivered data, and the operator of the data storage / exchange device notifies the transmission terminal. Then, the operator of the transmitting terminal inputs data again.

(2) When undelivered data is generated, the undelivered list is output to the transmitting terminal side, the undelivered destination is notified, and the operator of the transmitting terminal sends it by another route, or the data is input again.

[Problems of the Background Art] However, in the above-described undelivered data processing method, the operator of the transmitting terminal must re-enter the data and send it to the undelivered destination in any case, so that the operator is involved in complicated data input work There was a problem that had to be repeated multiple times.

[Object of the Invention] Therefore, an object of the present invention is to provide an undelivered destination resending method capable of resending data to a designated destination by a simple operation even if undelivered data occurs in order to solve the above problems. .

[Summary of the Invention] In order to achieve the above object, the present invention comprises a transmitting terminal, a data storing and switching apparatus, and a receiving terminal, and the data storing and switching apparatus should perform transmission input from the transmitting terminal. In the data exchange method of receiving data and a destination, managing and storing the data to be transmitted by a serial number, and transmitting the stored data to be transmitted to a receiving terminal of the destination, the data storage / exchange device. When the data to be transmitted cannot be transmitted to the destination receiving terminal, the unreached data detection means for detecting the occurrence of unreached data and the unreached data generation by the unreached data detection means When detected, the notification means for notifying the transmission terminal of the occurrence of the unreached data together with the serial number corresponding to the unreached data, and the serial number corresponding to the unreached data from the transmission terminal By inputting, the data retrieval means for retrieving the unreachable data corresponding to the serial number from the stored data, and the unreachable data retrieved by the data retrieving means are retransmitted to the receiving terminal which could not be transmitted. And a means for retransmitting undelivered data.

[Embodiment of the Invention] An embodiment of the present invention will be described in detail below with reference to the drawings. FIG. 1 is a block diagram showing the outline of this embodiment. A transmission terminal 5, 7 and a reception terminal 9, 11 are connected to a data storage / switching apparatus 1 via a switching network 3. The communication control means 13 of the data storage / exchange device 1 stores in the storage device 15 the data and the destination sent from the transmission terminals 5 and 7 via the exchange network 3,
Control is performed to transmit this data to the receiving terminal 9 or 11 on the destination side. Here, the storage device 15 manages the stored data with a management serial number. The unreached data detection means 17 detects the occurrence of unreached data, and if the unreached data has occurred, it notifies the notification means 19. The notification means 19 notifies the transmission terminal 5 or 7 via the communication control means 13 when the unreached data is generated. When the operator of the transmission terminal 5 or 7 knows the occurrence of undelivered data and inputs a serial number, the data retrieval means 21 retrieves undelivered data corresponding to this serial number in the storage device 15. The unreachable data retransmitting means 23 obtains the unreachable data retrieved by the data retrieving means 21 from the storage device 15 and transmits it to the unreachable receiving terminal 9 or 11.

FIG. 2 is a diagram showing the hardware configuration of the undelivered destination retransmission method according to this embodiment. As shown in the figure, the data storage / exchange device 1 includes a communication control device 13-1, 13-2 and a storage device 15 composed of a magnetic disk or a magnetic tape.
And a central processing unit (CPU) 25, which are bus 27
Connected by. The data storage switching device 1 has a bus
A console typewriter 33 and a display 35 are connected via I / O ports 29 and 31 connected to 27.

Next, the operation of this embodiment will be described. When data is being transmitted from the other transmitting terminal 7 to the receiving terminal 11 now, the transmission of the data from the target transmitting terminal 5 to the receiving terminals 9 and 11 via the data storage / switching device 1 is performed. It is assumed that communication is performed. At this time, the sending terminal 5
From the sending terminal 7 to the receiving terminal 11, the transmission time from the sending terminal 7 to the receiving terminal 11 is too long, and when the management time of the broadcast communication elapses, data is sent from the sending terminal 5 to the receiving terminal 11. Unable to transmit, resulting in undelivered data.

FIG. 3 is a flow chart showing the operation of this embodiment. The CPU 25 monitors the occurrence of unreached data in step 301, and when the unreached data occurs, the CPU 25 proceeds to step 303.
Then, the undelivered data occurrence notification is transmitted to the transmitting terminal 5.
When the terminals 5, 7, 9 and 11 are facsimiles, this undelivered data occurrence notification indicates that undelivered data has occurred, the serial number corresponding to the undelivered data, and the first page of undelivered data. You can transmit by. When each terminal is a personal computer (personal computer), the fact that the undelivered data has occurred, the serial number corresponding to the undelivered data, and the first page of the undelivered data may be sent as a personal computer signal. The first page of undelivered data is sent in most cases in which the sender, the destination, etc. are entered in this page, and when the operator of the transmitting terminal 5 sees this, it immediately asks which data this is. This is so that they can understand.

When the operator of the transmitting terminal 5 receives the notification of the undelivered data generation, the transmitting terminal 5 and the data storage / switching device 1 are connected to each other as necessary, and the serial number corresponding to the undelivered data is input in step 305.

In step 307, the unachieved data corresponding to the serial number is searched in the storage device 15.

In step 309, the undelivered data corresponding to the serial number obtained in step 307 is retransmitted to the undelivered destination receiving terminal 11.

If the undelivered data can be transmitted within the management time in step 311, the transmission terminal 5 is notified to that effect in step 313. If not, the undelivered data generation notification is transmitted again to the transmission terminal 5.

When the undelivered data is generated by the above configuration, the transmitting terminal 5
The operator simply inputs the serial number, and the undelivered data corresponding to the serial number is retransmitted to the receiving terminal 11 of the undelivered destination.

In the present embodiment, two transmitting terminals and two receiving terminals are described, but it goes without saying that the number is not limited to this.

[Effects of the Invention] As described in detail above, according to the present invention, undelivered data can be retransmitted to a specified destination by a simple operation.

[Brief description of drawings]

FIG. 1 is a block diagram showing the outline of one embodiment of the present invention,
FIG. 2 is a diagram showing the hardware configuration of this embodiment, and FIG. 3 is a flow chart showing the operation of this embodiment. 1 ... Data storage / exchange device, 5,7 ... Sending terminal, 9,11 ...
... Reception terminal, 15 ... Storage device, 17 ... Unreached data detection means, 19 ... Notification means, 21 ... Data retrieval means, 23 ... Unreached data retransmission means.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hide Ono 1 1-3-1, Asahigaoka, Hino-shi, Tokyo Inside Toshiba Communication Systems Engineering Co., Ltd.

Claims (1)

[Claims] 1. A transmission terminal, a data storage / exchange device, and a reception terminal, wherein the data storage / exchange device receives data to be transmitted and a destination input from the transmission terminal, and transmits the data. In a data exchange method in which data to be transmitted is managed and stored with a serial number, and the stored data to be transmitted is transmitted to the destination receiving terminal, the data storage / exchange device is configured such that the data to be transmitted is the destination. When it is not possible to send to the receiving terminal, the unreached data detection means for detecting the occurrence of unreached data, and when the occurrence of the unreached data is detected by the unreached data detection means, Whether the data is stored by inputting a notification number for notifying the transmission terminal together with the serial number corresponding to the unreached data and the serial number corresponding to the unreached data from the transmission terminal Data retrieval means for retrieving unreachable data corresponding to the serial number, and unreachable data retransmitting means for retransmitting the unreachable data retrieved by the data retrieval means to the receiving terminal that could not be transmitted. Undelivered destination resend method characterized by.