JPH05252279A - Processing system on fault of ultrahigh speed communication - Google Patents

Abstract

PURPOSE:To provide the processing system in which ultrahigh speed communication is continued when a communication fault takes place during ultrahigh speed communication. CONSTITUTION:A control section corresponding storage section 22a connects to a system control section 10a of a facsimile equipment. Dial numbers and hidden dial numbers of plural busy lines are stored in a control section corresponding storage section 22a. When communication fault information is reported to the system control section 10a from plural communication control sections 12a, the system control section 10a releases once a line having the communication fault and redials again the dial number or the hidden dial number of the line. As a result, the line having the communication fault is recovered to continue ultrahigh speed communication.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ultra-high-speed communication error processing method, and more particularly to an ultra-high-speed communication error processing method capable of effectively dealing with a communication error during ultra-high-speed communication. Regarding

[0002]

2. Description of the Related Art Conventionally, when transmitting and receiving data between communication devices such as facsimile machines, since only one communication line can be used at the same time, one communication data is serially transmitted by one line. Therefore,
When transmitting image data having a large amount of information such as newspapers and magazines, there is a problem that the transmission time is extremely long.

However, in recent years, a comprehensive service digital network (hereinafter abbreviated as ISDN) has been constructed, and it has become easy to use a plurality of communication lines at the same time.

ISDN is a conventional service (telephone,
While a communication network for each purpose was required for data, telex, etc.), a single user network interface integrated and transmitted a plurality of different services, so that there was only one access line for each service. It is a communication network that has the advantage that it can be aggregated.

With the spread of ISDN, there is an idea in recent years that communication is performed using a plurality of lines.

[0006]

However, up to now, regarding the data communication system using a plurality of lines as described above, the communication system is disclosed only in an extremely abstract manner, and the specific communication system is clear. It wasn't.

For example, when an abnormality occurs in a channel in use while transmitting image data in the ultra high speed communication mode, no consideration is given to what to do with the abnormality. I didn't.

SUMMARY OF THE INVENTION In view of the above-mentioned conventional technique, an object of the present invention is to provide a processing method for coping with an abnormal communication occurring during ultra-high speed communication and enabling the ultra-high speed communication to be continued. Especially.

[0009]

In order to achieve the above object, the invention of claim 1 stores dial numbers of a plurality of channels for ultra high speed communication and numbers of protocol control units in use. During super high-speed communication with the control unit compatible storage unit,
It is characterized in that it is provided with means for releasing the line and re-calling when a communication error occurs in the line.

Further, the invention of claim 3 is a delivery block storage unit for sequentially storing information on blocks delivered by the block delivery control unit to a plurality of protocol control units in correspondence with the protocol control units during ultra-high speed communication. And a means for detecting the block delivered to the protocol control unit corresponding to the line in which the communication abnormality has occurred from the block information in the delivery block storage unit and delivering it to another protocol control unit when the communication abnormality occurs. It is characterized by

[0011]

According to the first aspect of the present invention, when an abnormality occurs during ultra-high speed communication, the line with the communication error is temporarily released, the call is reissued, and the number of lines is secured. When a communication error occurs during the communication, it can be dealt with and the ultra-high speed communication can be continued.

According to the third aspect of the present invention, when a communication error occurs during ultra-high speed communication, the block delivered to the protocol control unit having the communication error can be redistributed to another protocol control unit. All blocks can be sent without missing blocks.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. First, a schematic configuration of a facsimile apparatus to which the present invention is applied will be described with reference to FIGS. 2 and 3. 2 shows the configuration of the transmitting station, and FIG. 3 shows the configuration of the receiving station.
Usually, the transmitting station and the receiving station are housed in a single facsimile machine, and many components are shared at the time of transmission and at the time of reception. In addition, a subscript a is attached to the transmitting station and a subscript b is attached to the receiving station to distinguish them from each other.

In FIG. 2, the operation unit 11a has operation keys such as a numeric keypad and a function selection key, a display unit, etc., and the system control unit 1 receives information according to the contents of the operation by the operator.
Output to 0a. The system control unit 10a controls the entire facsimile device.

The image input unit 14a reads the document information on the document 1 and converts it into communication data of an electric signal, and outputs this to the encoding unit 15a. The encoding unit 15a encodes the communication data and outputs it to the file storage unit 16a.

The file storage unit 16a stores the encoded communication data as an image file. The file division unit 17a divides the communication data stored in the file storage unit 16a into a plurality of block data and outputs the block data. As shown in FIG. 4, the divided block control unit 18a manages the divided block data such as document No., page No., block No., block data size, image quality, and paper size. Is added and output.

The block delivery control unit 33a delivers each block data to each protocol control unit 21a-1 to 21a-n. Each protocol control unit 21a-1 to 21a-n
Transmits the delivered block data to the receiving station by a normal protocol process. Multiple communication controller 12a
Controls the protocol control units 21a-1 to 21a-n.

The plural line control unit 13a makes a call request to the line control unit 20a corresponding to the notified line. The line control units 20a-1 to 20a-n automatically dial and call the receiving station when there is a transmission instruction by one-touch dialing or speed dialing, and execute a process of connecting a line with the receiving station. .. The result is notified to the multiple line control unit 13a.

The line switching unit 19a is the system control unit 10
In response to an instruction from a, each protocol control unit 21a-1
21a-n and the line control units 20a-1 to 20a-n are appropriately connected. The multiple line control unit 13a controls each of the line control units 20a-1 to 20a-n.

On the other hand, referring to FIG.
b is a combination of a plurality of block data delivered from the divided block control unit 18b based on the management information,
Output to the file storage unit 16b. The decryption unit 31b
The communication data stored in the file storage unit 16b is decrypted. The image output unit 30b records the decrypted communication data and restores the original 1.

Next, a first embodiment of the present invention will be described. In this embodiment, as shown in FIG. 2, the control unit correspondence storage unit 22a is connected to the system control unit 10a. The control unit correspondence storage unit 22a is preset with dial numbers for the number of lines required for use in ultra-high speed communication. This set can be input manually.

FIG. 5 is a conceptual diagram of data stored in the control unit correspondence storage unit 22a. As shown,
In this embodiment, the number of lines used for ultra-high speed communication is n, and dial numbers corresponding to the respective lines are preset. In the control unit correspondence storage unit 22a, the protocol control unit No. And a field for registering redial information.

Next, the operation of this embodiment will be described with reference to the flow charts of FIGS. 6 and 7 are flowcharts for explaining the operation of the system control unit 10a in the first embodiment.

In step S1, the system control unit 10a makes a call request for a preset number of lines n to the multiple line control unit 13a. In step S2, it is determined whether or not a call result has been received from the multiple line control unit 13a, and when the call result is received, the process proceeds to step S3, where the line control that secures a line in the multiple communication control unit 12a is performed. Request protocol activation for department.

At this time, the protocol control unit No. of the control unit correspondence storage unit 22a. In the column, the protocol control unit No. used to connect each line. Is registered. In step S4, the multi-line control unit 13a is requested to stop the line that cannot be connected, which is found from the call result.

In step S5, the system controller 10a
Judges whether or not it has received the consistency result of the line control unit that has secured the line, and if it has received the consistency result, proceeds to step S6 and confirms that the protocol consistency of all secured lines has been reached. Make a decision as to whether it is good. If this determination is affirmative, the process proceeds to step S7, and if the determination is negative, the process proceeds to step S10.

In step S7, ultrahigh-speed communication is started using the line having the good protocol compatibility. On the other hand, in step S10, a stop request is issued to the line for which the protocol consistency is not obtained. In step S11, it is determined whether or not all the lines requested to make a call in step S1 have been released. Go ahead and carry out ultra-high speed communication on the secured line. If the determination in step S11 is affirmative, that is, if all the lines requesting call origination are released, the process ends.

In step S8 following step S7, it is determined whether or not the ultra-high speed communication is completed. If the result is negative, the process proceeds to step S9, in which the plural communication control section 12a notifies the communication abnormality. Judge whether or not received. If there is a line that has a communication error,
The process proceeds to step S12 in FIG. 7, and if there is no line in which a communication error has occurred, the process returns to step S8. The step S8
If the determination is positive, the process proceeds to step S21 in FIG.

In step S12 of FIG. 7, redial information is set in the control unit correspondence storage unit 22a. In step S13, a request for stopping the line in which the communication abnormality has occurred is issued to the multiple line control unit 13a.

Next, in step S14, the multiple line control unit 13a is instructed to make a call to the line for which the redial information is set. Step S15
Then, it is determined whether or not the call result is received. If the determination is negative, the process proceeds to step S16, and it is determined whether or not the ultra-high speed communication is completed. On the other hand, if the determination is affirmative, the process proceeds to step S17 to request the plural communication control unit 12a to activate the protocol for the line control unit that has secured the line. Then, the process proceeds to steps S18 and S19. The processing in these steps is the same as in steps S4 and S5. If the determination in step S19 is affirmative, the process returns to step S6, and the protocol consistency is determined. Then, when the protocol consistency is good, it rejoins the ultra-high speed communication.

When the determinations in steps S8, S16 and S20 are affirmative, the process proceeds to step S21, and a stop request is issued to the multiple communication control unit 12a and the multiple line control unit 13a. Then, the series of processes is ended.

FIG. 1 is a diagram for explaining the configuration and operation of the main part of the first embodiment. The system control unit 10a makes a call request to the multiple line control unit 13a by using the plurality of dial numbers stored in the control unit correspondence storage unit 22a. The multiple line control unit 13a notifies the system control unit 10a of the information on the connection result.

When the system control unit 10a receives the notification of the connection result, the system control unit 10a makes a protocol activation request to the plural communication control unit 12a for the successful connection. On the other hand, the plural-communication control unit 12a uses the protocol control unit No. To the system control unit 10a. The system control unit 10a uses the protocol control unit No. Is registered in the control unit correspondence storage unit 22a. System control unit 10a
Requests the line release request to the multiple line control unit 13a for the unsuccessful connection.

As described above, a plurality of lines are secured,
Ultra-high speed communication is started. When a communication abnormality occurs during ultra-high speed communication, the plural communication control unit 12a notifies the system control unit 10a of communication abnormality information. Upon receiving this notification, the system control unit 10a requests the plural line control unit 13a to release the corresponding line, and also the control unit correspondence storage unit 22a.
1 is registered in the redial information field of. When 1 is registered in the redial information column, the system control unit 10a requests the relevant dial number to call again.

When the line is connected by this re-call,
Let this line participate in ultra-high speed communication again.

As described above, according to this embodiment, even if a communication error occurs during ultra-high speed communication, it is possible to recover this by redialing.

Next, a second embodiment of the present invention will be described with reference to FIG. This embodiment differs from the first embodiment in the following points.

As shown in FIG. 8, a first priority dial number and a second priority dial number (back dial) are set in advance in the control unit correspondence storage unit 22a, and the first priority dial number is initially set. Perform ultra-high speed communication using the line. When a communication error occurs during this ultra-high speed communication, the line in which the communication error has occurred is completely disconnected, and 1 is registered in the redial information column of the control unit correspondence storage unit 22a. Next, in order to call again, the second priority dial number where the redial information is 1 is searched, and the second priority dial number is called.

In the flow chart, step S14 in FIG. 7 is different from that in FIG. 7 except that "a call request to the second priority dial number of the line for which the redial information is set is issued to the plural line control unit". The steps are the same as in the first embodiment.

According to the second embodiment, when a communication abnormality occurs, the back dial of the line in which the communication abnormality has occurred is called to secure the line. Therefore, it is effective to avoid the communication abnormality. Can be done.

Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 9 shows a block diagram of a main part of this embodiment, which is characterized in that the delivery block storage unit 34a is connected to the block delivery control unit 33a of FIG.

FIG. 10 shows the delivery block storage section 34a.
The conceptual diagram of the data memorize | stored in FIG. The delivery block storage unit 34a is provided with a column for registering block information, and in this column, the situation where the block delivery control unit 33a delivers blocks to the protocol control units 21a-1 to 21-n is stored. To be done. Specifically, page number. Or block No. Etc. are stored.

According to the present embodiment, when a communication error occurs during ultra-high speed communication, the block delivery control unit 33a detects the communication error in the block being handed over to the protocol control unit in which the communication error has occurred. It controls the delivery to a protocol control unit other than the awakened protocol control unit. As a result, even if a communication error occurs in a certain line during ultra-high speed communication, all blocks can be reliably transmitted without omission in the blocks to be transmitted.

[0044]

As is apparent from the above description, according to the first and second aspects of the invention, when a communication abnormality occurs during ultra-high speed communication, the line in which the communication abnormality has occurred is temporarily disconnected and the call is recalled. By doing so, it is possible to secure the line necessary for ultra-high-speed communication, so that it is possible to effectively deal with the communication error of the line.

According to the third aspect of the present invention, even if a communication error occurs during ultra-high speed communication, all blocks can be surely transmitted without omission in the transmission block.

[Brief description of drawings]

FIG. 1 is a block diagram of a main part of a first embodiment of the present invention.

FIG. 2 is a block diagram of a transmission unit of a facsimile apparatus to which a characteristic part of the first embodiment is added.

FIG. 3 is a block diagram of a receiving unit of a facsimile apparatus to which the present invention is applied.

FIG. 4 is a diagram schematically showing the structure of block data.

5 is a conceptual diagram of data stored in a control unit correspondence storage unit of FIG. 1. FIG.

FIG. 6 is a flowchart for explaining the operation of the first exemplary embodiment of the present invention.

FIG. 7 is a continuation of the flowchart of FIG.

8 is a conceptual diagram of other data stored in the control unit correspondence storage unit of FIG. 1. FIG.

FIG. 9 is a block diagram of an essential part of a third embodiment of the present invention.

10 is a conceptual diagram of data stored in a delivery block storage unit in FIG.

[Explanation of symbols]

10a ... System control unit, 12a ... Plural communication control unit, 1
3a ... Multiple line control unit, 22a ... Control unit corresponding storage unit, 3
3a ... Block delivery control unit, 34a ... Delivery block storage unit

Front page continuation (72) Inventor Yoshiaki Tezuka, 3-7-1, Fuchu, Iwatsuki City, Saitama Prefecture Fuji Zelocks Co., Ltd. Iwatsuki Plant (72) Inventor, Shinichiro Nagoshi 3-7-1, Fuchu, Iwatsuki City, Saitama Prefecture Rocks Co., Ltd. Iwatsuki Works (72) Inventor Hideo Kinami 3-7-1, Iwatsuki-shi, Saitama Prefecture Fuji-Zeros Co., Ltd. Iwatsuki Works (72) Kosuke Sakaki 3-7-1, Iwatsuki City, Saitama Prefecture No. Fuji Xerox Co., Ltd. Iwatsuki Plant (72) Inventor Yasuhiro Ueyama 3-7-1, Fuchu, Iwatsuki City, Saitama Prefecture Fuji Xerox Co., Ltd. Iwatsuki Plant

Claims (3)

[Claims] 1. A control unit-corresponding storage unit that stores dial numbers of a plurality of channels for ultrahigh-speed communication and a number of a protocol control unit in use, and a communication error in a line during ultrahigh-speed communication. When it happened,
A processing method for an abnormal high-speed communication, comprising means for releasing the line and calling again. 2. A control unit correspondence storage unit for storing a first priority dial number and a second priority dial number of a plurality of channels for ultra high speed communication, and a protocol control unit number in use, and an ultra high speed communication. When a communication error occurs in a certain line,
And a means for calling the second priority dial number by releasing the line, and a processing method in case of an abnormal high speed communication. 3. Information of blocks delivered by a block delivery control unit to a plurality of protocol control units during ultra-high speed communication,
From the block information in the delivery block storage unit, a delivery block storage unit that sequentially stores data corresponding to the protocol control unit, and a block delivered to the protocol control unit corresponding to the line in which the communication abnormality has occurred when the communication error occurs However, the processing method at the time of ultra-high-speed communication error is provided with means for delivering to another protocol control unit.