JPH07200426A - Sequential type repeat file transfer device - Google Patents

Abstract

PURPOSE:To greatly shorten a transfer time by managing transmission control over respective data. CONSTITUTION:This device consists of a file transfer control means 2 which transfers a file from a specific central processing part CPU to N central processing parts based on a file transfer control signal and instructs the initialization of the transfer information, the setting of the transfer information, and the verification of the adequacy of the transfer file, a management table means 3a for a storage part 3 where information regarding the transfer of the file transfer control means 2 is set.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sequential relay file transfer device, and more particularly to a system including a plurality of electronic devices having a central processing unit of a sequential relay file transfer unit connected to each other through a transmission line. In this regard, the present invention relates to a sequential relay file transfer device that enables data in each of these central processing units to be simultaneously transferred from a central processing unit of a specific electronic device to a plurality of central processing units.

[0002]

2. Description of the Related Art Conventionally, in a system including a plurality of electronic devices each having an external storage unit connected to each other through a transmission line, a file transfer device has been designed to specify data in each external storage unit. There is a data device in a multiple electronic device system that transfers data from an external storage unit of an electronic device to a plurality of external storage units. Specific examples of such a transfer device include those described in JP-A-60-49927 and JP-A-62-62.
No. 155647, JP-A-63-24
4165, JP-A-57-76644.
JP-A-3-89547, JP-A-4-52845, and the like.

For example, in the file transfer apparatus disclosed in Japanese Patent Laid-Open No. 60-49927, when the desired data is accessed from a sequential file and transferred to another file, the procedure is simplified and the processing time is shortened. You can

The file transfer device disclosed in Japanese Patent Laid-Open No. 62-155647 is suitable for data transfer between electronic devices having a relatively small size such as a cash register and a small memory space, and confirms incoming call. It is possible to improve the data transfer efficiency without having to take

The transfer device described in Japanese Patent Application Laid-Open No. 3-244165 is a file transfer device between host computers of a distributed processing online device. By sequentially transferring files between host computers, the efficiency of file transfer is improved. Data conservation can be achieved by labor saving of system operation and automatic restoration of failures.

On the other hand, the transfer device described in Japanese Patent Application Laid-Open No. 3-89547 is capable of performing simultaneous file transfer using a plurality of lines by adopting a record division method, and divides data into a plurality of blocks to perform signal processing. Then, the data can be transferred in a short time and without error using a normal data communication line.

Furthermore, in the transfer device described in Japanese Patent Laid-Open No. 4-52845, data admissibility control and broadcast communication are performed by multi-layer distributed processing using a network,
The data is sequentially transferred between the nodes.

[0008]

In the conventional file transfer apparatus for simultaneously transferring a file to a plurality of central processing units, the load on the central processing unit for transmitting data becomes large and the processing is hindered. Instead, the central processing unit that sends the data must manage information about all the central processing units of the file transfer destinations in order to send the data to all the central processing units to which the file is transferred. It was Therefore, in the conventional file transfer apparatus, for example, it is necessary to control the file transfer status of each central processing unit and control the file re-sending processing, and therefore it takes a long time from the start of transfer to the completion of transfer. was there.

Also, for example, in the transfer device described in Japanese Patent Laid-Open No. 3-89547 and the transfer device described in Japanese Patent Laid-Open No. 4-52845, management of the file transfer status for each central processing unit and retransmission of files are performed. Since the process has to be controlled, it takes a transfer time from the start of transfer to the end of transfer, and the service time for the user cannot be improved by shortening the time for file transfer.

Therefore, it is an object of the present invention to provide a sequential relay file transfer device which manages the transmission of each data and greatly shortens the transfer time.

[0011]

In order to achieve the above object, the invention according to claim 1 is a file transfer signal generating means for generating a file transfer start signal, and a signal output from the file transfer signal generating means. File transfer control means for outputting transfer information necessary for file transfer from a specific sequential relay file transfer section to N sequential relay file transfer sections, and a plurality of pieces of information relating to transfer by the file transfer control means. For each of the storage areas, the data is transmitted based on the storage setting means set in each storage area and the signal read from the storage setting means, and the signal transmitted from the specific sequential relay file transfer section is received. And data transmission / reception means for transmitting an output signal to the storage setting means and the file transfer control means.

According to a second aspect of the present invention, in the file transfer control means, based on the signal output from the file transfer signal generating means, the specific sequential relay file transfer section outputs N
An initialization instruction control unit that transfers a file to each successive relay file transfer unit and instructs initialization information of the transfer information, and transfer information should be set in a state initialized by this initialization instruction control unit A setting instruction control unit for instructing information, and the validity of the file to be transferred is verified based on the setting instruction from the setting instruction control unit to verify whether it is valid,
And a verification instruction control unit that outputs a signal instructing that it is valid when it is determined to be valid.

According to the third aspect of the present invention, the file transfer control means sets the first transmission data output by the data transmission means of the first sequential relay file transfer section to the second transmission data when transferring the file. The second sequential relay file transfer unit is configured to be transmitted and the transmission data sent to the second sequential relay file transfer unit is instructed to be written.

According to the fourth aspect of the invention, the file transfer control means issues an instruction to write the transmission data sent to the second sequential relay file transfer section, and then receives the received data from the third to Nth. It is configured to issue a transmission instruction to repeat the procedure of transmitting to the second sequential relay file transfer unit.

According to the fifth aspect of the invention, the storage setting means has information indicating the size of the file, information indicating the number of sequential relay file transfer units at the destination, recognition information of the relay file transfer unit at the destination, and activation. The recognition information of the original relay file transfer unit and the transfer information of the sequential relay file transfer unit of the reception source are stored for each memory area.

According to a sixth aspect of the invention, there is provided a communication driver circuit which is driven based on a signal output from the file transfer control means or a signal output from the data transmission / reception means.

[0017]

According to the present invention, for example, the file transfer start signal is generated by the file transfer signal generating means shown in FIG. The file transfer control means outputs the transfer information necessary for the file transfer from the specific sequential relay file transfer section to the N sequential relay file transfer sections based on the signal output from the file transfer signal generating means. Further, the storage setting means sets each of a plurality of pieces of information regarding transfer output from the file transfer control means in each storage area. Further, the data transmission / reception means transmits data based on the signal read from the storage setting means, and receives a signal sent from a specific sequential relay file transfer section to receive the storage setting means and file transfer control. Sending an output signal to the means. This ensures prompt data transmission and reception. From the above, according to the present invention, the transfer time required for file transfer in the 1: N sequential relay file transfer section can be greatly shortened.

According to claim 2, for example, in the file transfer control means shown in FIG. 1, first, based on the signal output from the initialization instruction control section file transfer signal generating means,
A file is transferred from a specific sequential relay file transfer unit to N sequential relay file transfer units, and initialization information of the transfer information is designated. In the setting instruction control unit, the information to be set in the transfer information is instructed in the initialized state by the initialization instruction control unit. Further, the verification instruction control unit verifies the legitimacy of the file to be transferred on the basis of the setting instruction output from the setting instruction control unit, verifies whether or not the file is legitimate, and is legitimate when it judges that it is legitimate A signal instructing that is output. By these, the file transfer control is performed smoothly.

According to the second aspect, for example, a file is transferred from the central processing unit of the specific sequential relay file transfer unit shown in FIG. 1 to the N central processing units, and the transfer information is initialized. The file transfer control means gives an instruction, a transfer information setting instruction, and a verification of the validity of the transfer file, and the transfer information of the file transfer control means is set in the management memory table. This makes it possible to greatly reduce the transfer time required for file transfer.

According to the third aspect, for example, the file transfer control means shown in FIG.
An instruction to write the transmission data sent to the second central processing unit by transmitting the first transmission data divided by the data transmitting means of the second central processing unit to the second central processing unit. Do. This makes it possible to transfer files while reducing the processing load on the file transfer control means.

According to the third aspect of the present invention, the file transfer control means shown in FIG. 1 sends the received data from the third to the third, after instructing to write the transmission data sent to the second central processing unit. A transmission instruction is given to repeat the procedure of transmitting to the N-th central processing unit. As a result, data transmission up to the N-th can be performed sequentially, so that 1-to-N file transfer can be performed more efficiently than repeating 1-to-1 file transfer N times.

According to the fourth aspect of the invention, FIG.
The management table means shown in FIG. 2 is file size information, information indicating the number of central processing units of the destination, ID information of the central processing unit of the destination, ID information of the central processing unit of the activation source, and ID of the central processing unit of the receiving source. Information is stored for each memory area. As a result, it becomes possible to sequentially and efficiently transfer up to the Nth data.

According to the invention described in claim 5, in FIG. 1 or FIG.
The communication driver circuit is driven based on the signal output from the file transfer control means or the signal output from the data transmission / reception means. As a result, the load on the central processing unit due to file transfer can be reduced, and file transfer can be performed quickly.

[0024]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The sequential relay file transfer device of the present invention according to this embodiment will be described in detail. FIG. 1 is a block diagram showing an embodiment of the sequential relay file transfer device.

In FIG. 1, a sequential relay file transfer section 10 outputs a file transfer control signal based on a data transmission receiving section 1 for generating and receiving a file transfer signal and an output signal from the data transmission receiving section 1. The file transfer control unit 2, the file transfer control unit 2 that operates based on the signal from the file transfer control unit 2, and the transfer information is written in a predetermined storage area of the memory based on the output from the file transfer control unit 2. Communication with a storage unit 3, a data transmission / reception unit 4 that transmits data based on the output of the storage unit 3 and the output of the file transfer control unit 2, or receives information transferred from another sequential relay file transfer unit It is composed of a communication driver unit 5 for converting data into a predetermined communication format.

In FIG. 1, a data transmission / reception unit 1 is a file transfer control signal transmission unit 1 for generating a file transfer signal.
a and a file reception data receiving section 1b which receives the file reception data and processes the signal. Further, the file transfer control unit 2 includes an initialization instruction control unit 2a for outputting a control signal for instructing initialization of file transfer data, a setting instruction control unit 2b for instructing setting of table information, and transfer data of which transfer data is desirable. It is configured to include a verification instruction control unit 2c that verifies whether or not there is and outputs a verification instruction signal when it is determined to be desirable. Further, the storage unit 3 includes a management table 3a that writes management information in a predetermined memory area based on a control signal from the file transfer control unit.

The management table 3a includes file size information, which is information necessary for file transfer sent from the file transfer control unit 2, information indicating the number of destination CPUs, ID information of destination CPUs, and starting source information. The CPU ID information, the receiving CPU ID information, and the like are set for each memory area.

In the data transmission / reception unit 4, when the file transfer is started, the file size information, which is the setting contents of the management table, the number information of the destination CPU, the ID information of the destination CPU, and the ID of the starting CPU. Information and receiving CP
Signal processing for transmission is performed based on U ID information and the like.
Further, in the data transmitting / receiving unit 4, when the data transmitting / receiving unit 4 receives the received data via the communication line 6, the data transmitting / receiving unit 4 sends the received data to the file transfer control unit 2 and the data transmitting / receiving unit 4 transmits the received data. The management table 3 is read based on the read data, and the data sending / receiving unit 1 can be operated via the file transfer control unit 2 based on the read information.

Further, the communication driver unit 5 transmits or receives data to or from the CPU which is the object of file transfer transmitted or received by the data transmitting / receiving unit 4. The communication driver unit 5 is located in the data link layer in the protocol layer.

The communication line 6 is a data line to which the data transmitted from the communication driver unit 5 is transmitted. In this communication line 6, transmission data transmitted from another sequential relay file transfer device is received by the data transmission / reception unit 4 via the communication driver unit 5. At this time, the data is transmitted to the file transfer control unit 2 via the management table 3 or to the data transmission / reception unit 4 or the file transfer control unit 4.

FIG. 2 is an explanatory diagram showing the configuration of the management table 3a shown in FIG. 2 will be referred to in the description of FIG. In FIG. 2, the management table 3
a is file size information 100 of the file to be transferred,
The destination CPU number information 101, the transmission destination CPU ID information 102, the activation source CPU ID information 103, and the reception source CPU ID information 104 to 100n (n is a natural number of 1 or more) for each predetermined memory area 11. And the management information is temporarily stored in the memory area 11.

In FIG. 2, the file size information 100 of the memory area 11 is stored in the area 11A of the memory area 11. This file size information 100 is information on the size of the file to be downloaded.

An area 11B below the area 11A in which the file size information 100 of the memory area 11 is stored.
Stored in is the number information 101 of the destination CPU. The number information 101 of the destination CPU is stored in the memory area 1
This is the information stored in the area 11B
The number information 101 is information indicating the number of file transmission destination units from a specific transmission destination CPU.

The ID information 103 of the starting CPU is stored in the area 11C below the area 11B in which the number information 101 of the destination CPUs of the memory area 11 is stored. The ID information 103 of the activation source CPU is information indicating the identification number of the file transfer requesting CPU.

Further, the I of the starting CPU of the memory area 11
Area 11D below area 11C in which D information 103 is stored
Sequentially stored up to 11N is the I of the receiving CPU.
D information 104 to 100n. I of this receiving source CPU
The D information 104 to 100n are identification number information of the CPUs of the respective transmission destinations that the receiving CPU receives the file.

In this embodiment, by using the memory area 11 of the memory table 3 described above, as will be described in detail later, N (N is a natural number of 1 or more) C
In the file transfer to the PU, even if the 1: 1 communication file transfer is repeated N times, the time from the transfer start to the transfer completion can be the same as the time required for one file transfer.

Next, the operation of the invention sequential relay file transfer apparatus of this embodiment will be described in detail. In this description, description will be given based on FIG. 3, and FIGS. 1 and 2 will be appropriately referred to.

In FIG. 3, for example, the CPU _{ID 1} corresponds to the file transfer control unit 2 which receives the file transfer request information from the data transmission / reception unit 1 of FIG.
In this CPU _ID1 , the information required for file transfer is transmitted to the other party CPU to which all the files set in the request message are transferred. This file transfer information includes predetermined areas 11A to 11A of the memory area 11 of FIG.
File size information of the file transferred to 11D 10
0, destination CPU number information 101, destination CPU I
The D information 102, the ID information 103 of the activation source CPU, and the ID information 104 to 100n of the reception source CPU are stored.

In FIG. 3, the CPU of the file transfer source is the CPU _ID1 , and the CPU _ID1 to CPU _{ID2 to} C
The file is transferred to PU _IDn . At this time, CP
In the management table 3 of U _{ID 1} shown in FIG.
_{It is set when} the identifier of _ID1 is ID2 and there is no identifier of the receiving CPU. At that time, in the management table 3 of the CPU _ID2 shown in FIG. 1, the identifier of the destination CPU is ID3.
Then, the identifier of the receiving CPU is set to ID1. Following those settings to each CPU _ID3 to CPU _IDn similarly is shows the U _ID1 to CPU _IDn in FIG. 3 (For convenience in FIG. 3, ID1～IDn
Is shown in uppercase, but it is not substantially different from the one shown in subscript. ). In FIG. 3, SRC represents a recognizer of the CPU of the receiving side, and DST represents C of the receiving side.
It represents a recognizer of a PU.

In this embodiment, when it is confirmed that the management table 3 shown in FIG. 1 and FIG. 2 is correctly set for all the CPUs to which the files are transferred, the requesting CPU shown in FIG. The file transfer control unit 2 shown in FIG. 1 of a certain CPU _ID1 sends a notification of transmission start to the data transmission / reception unit 4, and the data is transmitted to the data transmission / reception unit 4.

Similarly, when the CPU _ID2 receives this data, the CPU _{ID2 writes the} data in the file storage area in the CPU and sends the data to the next destination CPU _ID3 . During this time, the CPU _ID1 transmits the next divided data to the CPU _ID2 . In this way, the divided data is sequentially transmitted to the CPU _IDn . The data transmission / reception processing at this time is performed by the data transmission / reception unit 4 in FIG. It should be noted that detailed description of the protocol processing relating to data transmission / reception is omitted because it is not the gist of the present invention.

After the file transmission is completed as described above, each file transfer target C shown in FIG. 1 or FIG.
The file transfer control unit 2 of the PU verifies the legitimacy of the transferred file. When the file verification is completed, the file transfer control unit 2 shown in FIG. 3 of the CPU to which each file is transferred is the request source CPU, for example, the CPU.
A file transfer end notification is transmitted to the file transfer control unit 3 of _ID1 . At this time, in the file transfer control unit 2 of the requesting CPU, all the C
Upon receiving the end notification from the PU, the file transfer to the plurality of CPUs is completed.

Although the management table is shown in FIGS. 1 and 2 in the above-described embodiments, it goes without saying that the management table may be an area other than the memory area shown in FIG. Any management table may be used as long as it has a memory area within the scope of the invention.

[0044]

As described above, in the sequential relay file transfer device according to the first to fourth aspects, the transmission management of each data is managed to greatly reduce the transfer time, thereby making it possible to improve the service of the user. It is possible to improve.

Particularly, according to the first aspect of the invention, the file transfer control can be smoothly performed. According to the second aspect of the invention, the transfer time required for file transfer can be significantly reduced. According to the third aspect of the invention, the file can be transferred while reducing the processing load of the file transfer control means. According to the invention described in claim 4, it is possible to perform the 1: N file transfer more efficiently than repeating the 1: 1 file transfer N times. According to the invention described in claim 5, it is possible to sequentially and efficiently transfer up to the N-th data. Further, according to the invention described in claim 6, the load on the CPU due to the file transfer can be reduced, and the file transfer can be performed promptly.

[Brief description of drawings]

FIG. 1 is a block diagram of an embodiment of a sequential relay file transfer system of the present invention.

FIG. 2 is an explanatory diagram showing an example of a memory area of a management table of an embodiment of a sequential relay file transfer system of the present invention.

FIG. 3 is a block diagram of an embodiment of a sequential relay file transfer system of the present invention.

[Explanation of symbols]

 1 data transmission / reception unit 1a file transfer control signal transmission unit 1b file reception data reception unit 2 file transfer control unit 2a initialization instruction control unit 2b setting instruction control unit 2c verification instruction control unit 3 storage unit 3a management memory table 4 data transmission / reception unit 5 communication driver section 6 communication line 10 sequential relay file transfer section 11 memory area 100 file size information 101 destination CPU number information 102 destination CPU ID information 103 startup source CPU ID information 104, 100n receiving source CPU ID information

Claims (6)

[Claims] 1. A file transfer signal generating means for generating a file transfer start signal, and N sequential relay file transfers from a specific sequential relay file transfer section based on a signal output from the file transfer signal generating means. File transfer control means for outputting transfer information necessary for file transfer to a unit, storage setting means for setting each storage area for each of a plurality of pieces of information related to the transfer of the file transfer control means, and reading from this storage setting means Data transmitting / receiving means for transmitting data based on the issued signal, receiving a signal transmitted from the specific sequential relay file transfer section, and transmitting an output signal to the storage setting means and file transfer control means. And a sequential relay file transfer device. 2. The file transfer control means transfers a file from a specific sequential relay file transfer section to N sequential relay file transfer sections based on a signal output from the file transfer signal generating means. An initialization instruction control unit for instructing initialization information of the transfer information, a setting instruction control unit for instructing information to be set in the transfer information in the state initialized by the initialization instruction control unit, and the setting instruction control 2. A verification instruction control unit that verifies the legitimacy of the file to be transferred based on a setting instruction from the unit, verifies whether the file is legitimate, and outputs the legitimacy. The sequential relay file transfer device described. 3. The file transfer control means sets the first transmission data output by the data transmission means of the first sequential relay file transfer section to the second transfer data when transferring the file. 3. The sequential relay file according to claim 1, wherein the sequential relay file is transmitted to the sequential relay file transfer unit, and an instruction to write the transmission data sent to the second sequential relay file transfer unit is issued. Transfer device. 4. The file transfer control means is the second one.
After instructing to write the transmission data sent to the second sequential relay file transfer unit, perform a transmission instruction to repeat the procedure of transmitting the reception data to the third to Nth sequential relay file transfer units. The sequential relay file transfer device according to any one of claims 1 to 3. 5. The storage setting means, information indicating the size of the file, information indicating the number of sequential relay file transfer units of the destination, recognition information of the relay file transfer unit of the destination, relay file transfer of the starting source 5. The sequential relay file transfer device according to claim 1, wherein the identification information of the copy unit and the transfer information of the sequential relay file transfer unit of the receiving source are stored for each memory area. 6. The communication driver circuit according to claim 1, further comprising a communication driver circuit driven based on a signal output from the file transfer control means or a signal output from the data transmission / reception means. Sequential relay file transfer device.