JP7389949B2 - File distribution system and file distribution program - Google Patents

Description

The present invention relates to a file distribution system, and particularly to a file distribution system for distributing files to information processing terminals located in a wide variety of networks.

BACKGROUND ART Conventionally, it has been widely practiced to store files in a server in a cloud system or the like, and to download and use those files to each computer in an organization's network via the Internet. In such a case, there is a request to distribute files within a time limit to all computers in the network within the organization.
On the other hand, it is undesirable to have each personal computer in an organization's network download files from a server because it increases the load on the network and impedes the processing efficiency of each personal computer.

Furthermore, in recent years, in-house networks have been divided into multiple segments, and some segments may not be connectable to the Internet for security reasons. Furthermore, there is an increasing number of cases in which personal computers to be distributed in the company network are placed outside the company network and used due to people working from home or teleworking.
It is desirable to be able to accurately distribute files even to computers located in such segment networks that cannot be connected to the Internet or to computers located outside the company network.

Japanese Patent Application Publication No. 2009-271904 Japanese Patent Application Publication No. 2012-53558 Japanese Patent Application Publication No. 2002-124945

Here, as a technique for solving problems such as an increase in network load in a file distribution system, a distribution management system described in Patent Document 1 can be mentioned.
In this distribution management system, the distribution management server monitors the distribution execution status of multiple representative client terminals that relay software distribution, and changes the allocation of client terminals distributed by each representative client terminal according to the execution status. It is being done. Furthermore, a list of representative client terminals is stored in the client terminal, so that the representative client terminal to which distribution results are notified can be changed based on changes in the status of the representative client terminal.
However, this distribution management system does not provide a relay system between the distribution management server and client terminals, realizes a distribution management system with high efficiency in software distribution by representative client terminals, and does not depend on the status of client terminals. The purpose of this method is to reliably collect distribution results, and it is not optimal for distributing files to various information processing terminals located on a wide variety of networks.

Further, as a technique for solving the above problem, a distribution system described in Patent Document 2 can be mentioned.
In this distribution system, when the server receives notification of a distribution request for an arbitrary file from each client, it selects the client to which the arbitrary file has been distributed as a proxy server, and sends the proxy server to each client that notified the distribution request. By sending route information, each client can obtain files from the proxy server.
However, with this distribution system, although files can be obtained between clients, distribution requests are made to the server, and file distribution is managed by the server. It was not suitable for distributing files to terminals.

Further, as a technique for solving the above problem, a file multiplex distribution system apparatus described in Patent Document 3 can be mentioned.
This file multiplex distribution system device selects a representative client machine that can receive distribution files for each subnet group, multiplex distributes the distribution file to each selected representative client machine sequentially, and each representative client machine receives the file. The distributed file is distributed to the remaining client machines in the subnet group.
However, such devices are not suitable for distributing files to information processing terminals located in a wide variety of networks.

Furthermore, it is desirable that the file distribution system be able to distribute files to all computers within an organization's network within a time limit while minimizing the load on the network. Furthermore, in order to complete file distribution within a deadline, it is desirable that the file distribution system be able to adjust the file transfer speed, etc., while not increasing the load on the network.

Therefore, the present inventor has developed a system that can solve problems such as increased network load in file distribution systems, and that can be applied to information processing terminals located on a wide variety of networks, such as computers located on segment networks that cannot connect to the Internet. The present invention was completed by devising a file distribution system that can accurately distribute files even to people. In addition, in such a file distribution system, it is possible to adjust the file transfer speed, etc., while not increasing the load on the network, and it is possible to complete the file distribution within the deadline.

The present invention has been made in view of the above circumstances, and is a file distribution system that can reduce the network load in a file distribution system and can accurately distribute files to each information processing terminal located in a wide variety of networks. The purpose is to provide systems and file distribution programs.

In order to achieve the above object, the file distribution system of the present invention provides a file distribution system that allows a plurality of information processing terminals arranged in a plurality of segments in a network within an organization to connect to the network via a communication line. A file distribution system that distributes files stored in a file holding server, wherein the file holding server includes a distribution information storage unit that stores distribution information including configuration information that defines distribution contents and distribution files; a distribution destination status storage unit that stores status information including processing capacity information of the previous information processing terminal; a selection condition storage unit that stores conditions for selecting an information processing terminal that is responsible for distributing files; and a selection condition storage unit that stores conditions for selecting an information processing terminal that is responsible for distributing files. the information processing terminal includes a distribution information storage section that stores distribution information having distribution files and setting information that defines distribution contents; A distribution destination status storage unit that stores status information including processing capacity information of a terminal, a file transmission unit that transmits a distribution file, and a distribution selection unit that selects an information processing terminal that is in charge of distributing the file. The distribution selection unit of the file ownership server selects an information processing terminal in charge of file distribution as a distribution device based on the conditions and processing capacity information of the file ownership server, and performs the distribution to the selected distribution device. The file transmitter of the device in charge of distribution transmits the distribution file to another information processing terminal arranged in the same segment, and the selector in charge of distribution of the device in charge of distribution transmits the file to another information processing terminal arranged in the same segment. An information processing terminal in charge of file distribution is selected from among the arranged information processing terminals as another device in charge of distribution, and the distribution information is transmitted to the selected other device in charge of distribution. The file transmission section of the device is configured to transmit a file to another information processing terminal arranged in the other segment.

In the file distribution system of the present invention, the information processing terminal may include an operation time measurement unit that calculates an average operation time of the information processing terminal to which the file is distributed and stores it in the distribution destination state storage unit; a distribution speed adjustment section that determines a transfer speed of a file to a corresponding information processing terminal based on time; and a distribution selection section and a file transmission section of the information processing terminal that transmit the corresponding information at the determined transfer speed. It is also preferable to have a configuration in which files are sent to a processing terminal.

Further, in the file distribution system of the present invention, the file holding server and the information processing terminal each include a file dividing unit that divides the distribution file into a specific number and generates divided distribution files, and the file holding server It is also preferable that the distribution selection section of the information processing terminal and the distribution selection section and file transmission section of the information processing terminal sequentially transmit the divided distribution files.

Further, the file distribution program of the present invention can be stored in a file holding server connectable to the network via a communication line to a plurality of information processing terminals arranged in a plurality of segments in a network within an organization. A file distribution program that distributes a file that has been distributed, the file holding server is configured to include a distribution information storage unit that stores configuration information that defines distribution contents and distribution information that includes distribution files, and an information processing terminal to which the file is distributed. A distribution destination status storage unit that stores status information including processing capacity information, a selection condition storage unit that stores conditions for selecting an information processing terminal in charge of file distribution, and a selection condition storage unit that stores conditions for selecting an information processing terminal in charge of file distribution. and causing the distribution selection unit to select an information processing terminal in charge of file distribution as a distribution device based on the conditions and the processing capacity information, and to transmit the distribution information. be.

Further, another file distribution program of the present invention provides a file holding server that is connectable to a plurality of information processing terminals divided into a plurality of segments in a network within an organization via a communication line. A file distribution program that distributes files stored in the information processing terminal, a distribution information storage unit that stores distribution information having configuration information that defines distribution contents and distribution files, and information processing of a file distribution destination. A distribution destination status storage unit that stores status information including terminal processing capacity information, a distribution destination status collection unit that collects the status information, a file transmission unit that transmits the file, and an information processing terminal that is responsible for distributing the file. Functions as a selection condition storage unit for storing conditions and a distribution selection unit for selecting an information processing terminal in charge of file distribution, and is arranged in the same segment or another segment in the distribution destination status collection unit, and causing the status information to be collected from an information processing terminal capable of acquiring the status information, storing the collected or transmitted status information in the distribution destination status storage unit, and transmitting the distribution information to the file holding server or the distribution information. The distribution file is sent to the information processing terminal of the sender that has sent the file, the file transmission section is caused to transmit the distribution file to another information processing terminal located in the same segment, and the distribution selection section is configured to set the conditions and the processing. An information processing terminal in charge of file distribution is selected as another distribution device from among information processing terminals placed in other segments based on the capability information, and the distribution information is transmitted to the selected other distribution device. There is a configuration in which it is transmitted.

Note that the file distribution system of the present invention is configured such that the distribution selection unit of the other distribution device is capable of accessing a further other segment, and the distribution file is transmitted to an information processing terminal in the further other segment. If not, an information processing terminal in charge of file distribution is selected as a further distribution device from among the information processing terminals arranged in the further other segment, and the selected further other transmitting the distribution information to the device in charge of distribution, the file transmission unit of the further device in charge of distribution transmits the distribution file to another information processing terminal arranged in the further other segment, and It is also preferable that the process by the distribution selector and the file transmitter in each information processing terminal be repeated until there are no more segments in the network within the organization that include information processing terminals to which the distribution file has not been transmitted.

Note that in the file distribution system of the present invention, when the distribution selection unit of the information processing terminal cannot access other segments including the information processing terminal to which the distribution file has not been transmitted, the distribution information is transferred to the information processing terminal. The distribution selection unit of the source information processing terminal determines whether the distribution file has been sent if the access prohibition information is sent. If it is possible to access another segment containing an information processing terminal that is not accessible, the distribution information selection unit in the information processing terminal executes processing, and if it cannot be accessed, the distribution information is sent to the information processing terminal. It is also preferable to have a configuration in which the access prohibition information is transmitted to the information processing terminal that is the transmission source.

According to the present invention, it is possible to provide a file distribution system and a file distribution program that can reduce the network load in the file distribution system and can accurately distribute files to each information processing terminal located in a wide variety of networks. It becomes possible.

FIG. 1 is an explanatory diagram showing the configuration of a file distribution system according to a first embodiment of the present invention. FIG. 2 is an explanatory diagram of selection of a device in charge of distribution by a file holding server in the file distribution system according to the first embodiment of the present invention. FIG. 2 is an explanatory diagram of transmission of distribution information from a file holding server to a personal computer in the file distribution system according to the first embodiment of the present invention. FIG. 3 is an explanatory diagram of collection of status information of distribution destinations in the file distribution system according to the first embodiment of the present invention. FIG. 3 is an explanatory diagram of transmission of a distribution file within a segment in the file distribution system according to the first embodiment of the present invention. FIG. 6 is an explanatory diagram of selection of another distribution device by the distribution device in the file distribution system according to the first embodiment of the present invention. FIG. 2 is an explanatory diagram of transmission of distribution information between segments and transmission of distribution files within a segment in the file distribution system according to the first embodiment of the present invention. FIG. 3 is an explanatory diagram of acquisition of a distributed file by an external personal computer in the file distribution system according to the first embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of a file holding server in the file distribution system according to the first embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of a personal computer in the file distribution system according to the first embodiment of the present invention. FIG. 2 is an explanatory diagram of file distribution when a large number of segments exist in the file distribution system according to the first embodiment of the present invention. 2 is a flowchart showing a processing procedure for transmitting a distribution file between a plurality of personal computers in the file distribution system according to the first embodiment of the present invention. 2 is a flowchart showing a processing procedure for transmitting a distribution file between a file holding server and an external personal computer in the file distribution system according to the first embodiment of the present invention. FIG. 7 is an explanatory diagram showing the average operating time of each personal computer in the file distribution system according to the second embodiment of the present invention. FIG. 2 is a block diagram showing the configuration of a personal computer in a file distribution system according to a second embodiment of the present invention. It is a flowchart which shows the processing procedure of the personal computer in the file distribution system of the second embodiment of the present invention. FIG. 7 is an explanatory diagram showing the transmission time when a distributed file is not divided in the file distribution system according to the third embodiment of the present invention. FIG. 7 is an explanatory diagram showing the transmission time when dividing a distributed file in the file distribution system according to the third embodiment of the present invention. FIG. 3 is a block diagram showing the configuration of a file holding server in a file distribution system according to a third embodiment of the present invention. It is a block diagram showing the composition of the personal computer in the file distribution system of the third embodiment of the present invention.

Hereinafter, preferred embodiments of the file distribution system and file distribution program of the present invention will be described with reference to the drawings.

[First embodiment]
In the file distribution system of this embodiment, as shown in FIG. 10b, 10c, 10d, 10e, information processing terminals) are arranged. These personal computers have similar configurations.

Furthermore, the plurality of segments includes one that can be connected to the Internet (segment 1) and one that is set not to be connected to the Internet (segment 2). The PCs in segment 2 (PCs 10c, 10d, 10e) cannot be connected to the Internet, but can connect to the PCs in segment 1 (PCs 10, 10a, 10b).

The personal computer in segment 1 and the file holding server 20 can be connected via a communication line 30 such as the Internet. The file holding server 20 is provided as a server in a cloud system or the like.
Further, the personal computer taken out from the in-house network 1 is shown as an external personal computer 10α in FIG. The external personal computer 10α can be connected to the file holding server 20 via the communication line 30.
The file holding server 20, the external personal computer 10α, and the communication line 30 exist in an external environment 2 outside the in-house network 1 in FIG.

First, an overview of the processing by the file distribution system and file distribution program of this embodiment will be explained.
First, the file holding server 20 selects a personal computer in charge of file distribution from among the personal computers in the internal network 1 according to predetermined criteria. In FIG. 2, the personal computer 10 is selected as the device in charge of distribution.
Then, as shown in FIG. 3, the file holding server 20 transmits, to the personal computer 10, setting information that defines distribution contents and distribution information including distribution files.
In this way, a device in charge of distribution is first selected, and file distribution is started from the personal computer of the segment in which the selected device in charge of distribution is placed.

Next, as shown in FIG. 4, the personal computer 10, which is the device in charge of distribution, receives a personal computer containing the IP address and processing capacity information from the personal computers in the same segment and the personal computers in other segments that can be connected. The status information is acquired, stored, and sent to the file holding server 20. These are stored in the file holding server 20.

Next, the personal computer 10 transmits the distribution file to the personal computers in the same segment, as shown in FIG.
Further, the personal computer 10 selects a personal computer in charge of file distribution from personal computers in other segments according to predetermined criteria. In FIG. 6, the personal computer 10c is selected as the device in charge of distribution.

Then, as shown in FIG. 7, the personal computer 10 transmits, to the personal computer 10c, setting information that defines the distribution content and distribution information including the distribution file.
The personal computer 10c acquires and stores status information including an IP address and processing capacity information from the other personal computers in segment 2, and transmits the distribution file to the other personal computers in segment 2.

Each personal computer determines whether the personal computer is located outside the company network 1 at a predetermined timing. If it is determined that the computer is located outside, the computer is recognized as an external computer.

As shown in FIG. 8, the external computer 10α accesses the file holding server 20 at a predetermined timing, receives setting information that defines distribution contents, and determines whether or not the computer is the destination for the file distribution. judge. Furthermore, it is determined whether the distribution file has already been distributed to the external personal computer 10α. If the personal computer is the file distribution destination and the distribution file has not yet been distributed, the computer receives the distribution file from the file holding server 20.
Furthermore, when the external computer 10α completes receiving the distribution file, it transmits distribution completion information indicating that the reception of the distribution file has been completed to the file holding server 20. Further, the distribution completion information is transmitted from the file holding server 20 to the personal computer 10 and stored therein.

In this way, in the file distribution system of this embodiment, a device in charge of distribution is selected from among the computers in the in-house network, and this device in charge of distribution not only distributes data to other computers located in segments that can be connected to the Internet. It is now possible to distribute distributed files to computers located in segments that are not connected to the Internet or to computers taken outside the company. Furthermore, the distribution device can manage the distribution status of distribution files.

Next, the configuration of the file distribution system and file distribution program of this embodiment will be explained in detail.
As shown in FIG. 9, the file holding server 20 includes a distribution information storage unit 201 that stores distribution information that includes setting information that defines distribution contents and distribution files, and processing capacity information of computers to which files are distributed. It includes a distribution destination status storage unit 202 that stores information, a selection condition storage unit 203 that stores conditions for selecting a personal computer in charge of file distribution, and a distribution person selection unit 204 that selects a personal computer in charge of file distribution. ing. It is also preferable to include a selection condition learning unit 205 that learns and generates conditions for selecting a personal computer in charge of file distribution.

The distribution information storage unit 201 stores setting information (distribution session) that defines distribution contents and distribution files (file bodies) as distribution information of files.
The setting information preferably includes identification information (ID) of the personal computer to which the file is distributed, distribution deadline, transfer speed (number of bytes transferred or number of packets sent per unit time, etc.), and information regarding the file.

For the identification information of the computers to which files will be distributed, set a unique value for each computer in advance and save it on the local hard disk.
It is preferable that the information regarding the file includes the file name, file size, file digest value, installation location, operation on the Internet (replacement upon restart, etc.), and the like.
Note that it is also possible to adopt a configuration in which the setting information that defines the distribution content and the distribution file are stored in separate storage units.

The distribution destination status storage unit 202 stores location information, processing capacity information, etc. for each identification information of the computer to which the file is distributed, as status information (host status, distribution destination status information) of the computer to which the file is distributed. do. It is preferable to use an IP address as the location information. As the processing capacity information, it is preferable to use CPU performance, memory size, free disk capacity, average operating time, past distribution success rate, and the like. It is also preferable that the processing capacity information includes the administrator's intention (for example, the computer does not want to be used by a person in charge of distribution).

The status information stored in the distribution destination status storage unit 202 is initially collected and stored in advance, and then, as will be described later, is received from the personal computer of the distribution device and stored.
That is, the distribution destination status storage unit 202 stores the status information transmitted via the communication line 30 from the personal computer of the device in charge of distribution for each personal computer identification information.

The selection condition storage unit 203 stores selection conditions for selecting a personal computer in charge of file distribution.
As the selection condition item, it is preferable to use an item of processing capacity information in the distribution destination state storage unit 202. It is also preferable to use, as selection conditions, whether the personal computer is located in a segment that cannot be connected to the Internet or whether the personal computer is located outside the company network 1.

The distribution person selection unit 204 selects a personal computer suitable for being in charge of file distribution from among the personal computers in the in-house network 1. That is, using the selection conditions stored in the selection condition storage section 203 and based on the processing capacity information stored in the distribution destination state storage section 202, an appropriate personal computer is selected as the distribution device responsible for distributing the file.
For example, the distribution person selection unit 204 selects selection condition items such as CPU performance, memory size, free disk space, average operating time, past distribution success rate, administrator's intention, and the number of times the device is selected as a distribution person. By converting the size of distributed files into scores and adding them according to the weighting values of each item, it is possible to select a device in charge of distribution from among highly rated personal computers.

Also, at this time, the distribution person selection unit 204 selects the internet based on the identification information of the computer to which the file is distributed stored in the distribution information storage unit 201 and the IP address stored in the distribution destination status storage unit 202. It is preferable to exclude from the selection personal computers located in segments that cannot be connected, personal computers that do not exist in the company network 1, and the like.
Then, the distribution person selection unit 204 transmits distribution information including setting information defining distribution contents and a distribution file to the selected distribution person apparatus.

The selection condition learning unit 205 learns the weighting values of the selection condition items by machine learning such as deep learning, and determines the weighting values suitable for selecting an appropriate personal computer as the distribution device, which is used by the distribution person selection unit 204. can be calculated. Thereby, the distribution person selection unit 204 can select the device in charge of distribution using the calculated weighting value.
Machine learning by the selection condition learning unit 205 is performed in advance prior to file distribution. It is also preferable to have the selection condition learning unit 205 perform machine learning at a predetermined timing or at any time.

As shown in FIG. 10, a personal computer 10, which is an information processing terminal, includes a distribution information storage unit 101 that stores distribution information including setting information that defines distribution contents and distribution files, and processing capacity information of the personal computer to which the file is distributed. A distribution destination status storage unit 102 that stores status information having a distribution file, a file transmission unit 104 that transmits a distribution file, and a distribution person selection unit 106 that selects a personal computer in charge of file distribution. It is also preferable to include a distribution destination status collection unit 103 that collects status information of computers to which files are distributed, and a selection condition storage unit 105 that stores conditions for selecting a computer that is in charge of file distribution. Furthermore, it may include a placement determination unit 107 that determines whether the personal computer is placed in the internal network 1, and a file acquisition unit 108 that acquires configuration information that defines distribution contents and distribution files from the file holding server 20. preferable.
Each personal computer in this embodiment has the same configuration as the personal computer 10.

Distribution information storage unit 101, distribution destination status storage unit 102, selection condition storage unit 105, and distribution person selection unit 106 are the same as distribution information storage unit 201 and distribution destination status storage in file holding server 20, except for differences described later. The configuration can be similar to that of the section 202, the selection condition storage section 203, and the distribution person selection section 204.

The distribution information storage unit 101 stores, as file distribution information, setting information (distribution session) that defines distribution contents, distribution information including distribution files, and file distribution status. The distribution information storage unit 101 can store distribution information sent from the file holding server 20 or the device in charge of distribution.

The setting information preferably includes identification information (ID) of the personal computer to which the file is distributed, distribution deadline, transfer speed, and information regarding the file. It is preferable that the information regarding the file includes the file name, file size, file digest value, installation location, operation on the Internet (replacement upon restart, etc.), and the like.
The file distribution status indicates whether the file distribution has been completed for each identification information of the personal computer to which the file is distributed and for each identification information of the distributed file.
Note that it is also possible to adopt a configuration in which setting information defining distribution contents, distribution files, and file distribution status are stored in separate storage units.

The distribution destination status storage unit 102 stores location information, processing capacity information, etc. for each identification information of the computer to which the file is distributed, as status information (host status, distribution destination status information) of the computer to which the file is distributed. can do. It is preferable to use an IP address as the location information. As the processing capacity information, it is preferable to use CPU performance, memory size, free disk capacity, average operating time, past distribution success rate, and the like. It is also preferable that the processing capacity information includes the administrator's intention (for example, the computer does not want to be used by a person in charge of distribution).

The distribution destination status collection unit 103 collects status information of the personal computer. That is, the distribution destination state collection unit 103 collects state information from each personal computer that is placed in the same segment as the personal computer or in a different segment and that is capable of receiving state information from the personal computer.
FIG. 4 shows how the personal computer 10 collects state information of other personal computers in segment 1 and state information of a personal computer placed in segment 2 that is not connected to the Internet.

One of the reasons why the distribution destination status information is collected by the distribution destination status collection unit 103 in this way is that the distribution information that the personal computer 10 receives from the file holding server 20 includes location information such as the IP address of the distribution destination. This is to know the location information necessary for actual communication, since the information is not available.
Also, the reason why IP addresses etc. are not included in the distribution information is that the internal network 1 uses DHCP, where addresses change dynamically, or the IP address of each computer is set to a free address. This is because there is a possibility of changes being made one after another on a daily basis, and this is to accommodate this.

The distribution destination status collection unit 103 stores the collected status information in the distribution destination status storage unit 102 for each identification information of the personal computer to which the file is distributed. Further, the distribution destination status collection unit 103 can send the collected or transmitted status information to the source computer that has transmitted the distribution information to the computer. Further, the distribution destination state collection unit 103 can send the collected or transmitted state information to the file holding server 20.
Then, in the file holding server 20, the status information is stored in the distribution destination status storage unit 202 for each identification information of the personal computer to which the file is distributed.

After receiving distribution information from the file holding server 20 or another personal computer, the file sending unit 104 sends the distributed file to another personal computer placed in the same segment as the personal computer.
The selection condition storage unit 105 stores selection conditions for selecting a personal computer in charge of file distribution.

The distribution selection unit 106 selects a personal computer suitable for distributing files from among the personal computers placed in other segments of the in-house network 1 as a distribution responsible device (another distribution responsible device).
At this time, similar to the distribution selection section 204 of the file holding server 20, the distribution selection section 106 can select the distribution apparatus based on the selection conditions. Note that the distribution selection unit 106 can also attempt to access each personal computer placed in another segment and select the first computer with which communication can be established as the distribution device.

That is, the distribution person selection unit 106 excludes from selection the other computers (10a, 10b) in segment 1 where the computer 10 is located, which are computers to which the distribution file has already been transmitted, and also Using the selection conditions stored in the storage section 105 and the processing capacity information stored in the distribution destination state storage section 102, an appropriate personal computer is selected as the distribution device responsible for distributing the file. Note that whether or not the personal computer is the one to which the distribution file has been sent can be confirmed for each file identification information based on the distribution status stored in the distribution destination status storage unit 104.

In FIG. 6, the personal computer 10c located in segment 2, which cannot be connected to the Internet, is selected as the device in charge of distribution.
Then, the distribution person selection unit 106 transmits distribution information including setting information that defines distribution contents and a distribution file to the selected personal computer 10c.

The distribution destination status collection unit 103 in the personal computer 10c that has received the distribution information collects status information including placement information, processing capacity information, etc. from other computers (10d, 10e) placed in the segment 2 where the personal computer is placed. collect. The collected status information is stored in the distribution destination status storage unit 102.
Then, the file sending unit 104 in the personal computer 10c sends the distribution file to the other personal computers located in the segment 2.
In this way, according to the file distribution system of this embodiment, distribution files can be automatically transmitted even to personal computers located in segments that cannot be connected to the Internet.

Further, at this time, it is also preferable that the distribution destination status collection unit 103 in the personal computer 10c transmits the collected status information to the personal computer 10 that is the source that has transmitted the distribution information. It is also preferable to have the distribution destination status collection unit 103 in the personal computer 10 store the received status information in the distribution destination status storage unit 102 and further transmit this status information to the file holding server 20.
As a result, the distribution destination state storage section 102 of the device in charge of distribution and the distribution destination state storage section 202 of the file holding server 20 can be updated to the latest information.

The placement determination unit 107 determines whether the personal computer is placed in the in-house network 1 or not. The determination by the placement determination unit 107 as to whether or not the personal computer is placed in the in-house network 1 can be performed, for example, by the following method.
(1) If an Active Directory domain is used in the company network 1, the determination can be made based on whether or not it is possible to connect to the domain controller.
(2) If a UDP packet is received from another personal computer in the company network 1, it can be determined that the computer is located in the company network 1.
(3) Obtain the MAC address of the default gateway, and determine that the MAC address is located in the internal network 1.
(4) If something like a beacon is installed in the company and its radio waves can be received, it can be determined that it is placed in the company network 1.
(5) If GPS information can be obtained, it can be determined that the device is located in the in-house network 1 from the location information.

If the placement determination unit 107 determines that the personal computer is not placed in the internal network 1, the personal computer is recognized as an external computer. In FIG. 8, the personal computer is shown as an external personal computer 10α.
The file acquisition unit 108 acquires setting information that defines distribution contents and a distribution file from the file holding server 20.

The file acquisition unit 108 accesses the file holding server 20 at a predetermined timing, receives setting information that defines distribution contents, and checks whether the identification information of the external computer 10α is included as a distribution target. , it is determined whether the external personal computer 10α is the file distribution destination. Furthermore, it is determined whether the distribution file has already been distributed to the external personal computer 10α. Then, if the external computer 10α is the file distribution destination and the distribution file has not been distributed to the external computer 10α, the distribution file is received from the file holding server 20.

Further, when the file acquisition unit 108 completes receiving the distribution file, it transmits distribution completion information indicating that the reception of the distribution file has been completed to the file holding server 20. Further, the distribution completion information is transmitted from a transmitting unit (not shown) of the file holding server 20 to the personal computer 10 and stored therein.

Further, it is preferable to have the file acquisition unit 108 transmit status information including the IP address and processing capacity information of the external personal computer 10α to the file holding server 20, and further, this status information is transmitted by the transmitting unit of the file holding server 20. It is preferable that the information is transmitted to the personal computer 10 and stored in the distribution destination status storage unit 103 of the personal computer 10.
This allows the personal computer 10, which is the device in charge of distribution, to manage file distribution including the external personal computer 10α.
Note that if the placement determination unit 107 determines that the personal computer is placed in the in-house network 1, the file acquisition unit 108 does not perform any processing.

Files distributed by the file distribution system of this embodiment are not particularly limited, but, for example, update files for an operating system can be suitably targeted. It is also preferable that the distributed file be a content file such as an image or a video. . Since these files are often relatively large in size, the file distribution system of this embodiment can be suitably used.
It is also preferable that the distributed file be the content of an electronic textbook. Since such content is large in size, it is very cumbersome to distribute it to many children's computers. Furthermore, since frequent updates are required and distribution needs to be completed by the time the class begins, the file distribution system of this embodiment can be suitably used.

Next, with reference to FIG. 11, a file distribution process performed by the file distribution system of this embodiment when a large number of segments exist will be described.
It is assumed that segments 1 to 4 exist in company network 1, segment 1 is connected only to segment 2, segment 2 is further connected to segment 3 and segment 4, and segment 3 and segment 4 are not connected. It is also assumed that the personal computers placed in segments 1, 3, and 4 can connect to the Internet, and the personal computers placed in segment 2 cannot connect to the Internet.

As already explained using FIGS. 5 to 7, distribution files are transmitted to the personal computers placed in segment 1 and segment 2 in the order of (1) to (3) in FIG. 11.
That is, the personal computer 10, which is the device in charge of distribution, obtains and stores status information including IP addresses and processing capacity information from personal computers in the same segment and personal computers in other segments that can be connected, and stores it in a file. The distribution file received from the holding server 20 is sent to other personal computers in the same segment ((1) in FIG. 11).

Next, the personal computer 10 selects a personal computer in charge of file distribution from among the personal computers in segment 2, which is another segment. In FIG. 11, the personal computer 10c is selected as the device in charge of distribution (other devices in charge of distribution). Then, the personal computer 10 transmits distribution information including setting information defining distribution contents and a distribution file to the personal computer 10c ((2) in FIG. 11).
The personal computer 10c acquires and stores status information including the IP address and processing capacity information from the other personal computers in segment 2, and sends the distribution file to the other personal computers in segment 2 ((3 in FIG. 11). )).

Next, the personal computer 10c, which is another device in charge of distribution, selects a personal computer in charge of distributing the file from undistributed personal computers (computers to which the distribution file has not been transmitted) in other segments. In FIG. 11, segment 2 is connected to segments 3 and 4, and no distribution files are being sent to the computers of these segments. Note that whether or not a computer has not been distributed can be confirmed for each computer and for each file based on the distribution status stored in the distribution information storage unit 101.

At this time, the distribution person selection unit 106 of the personal computer 10c excludes the personal computers (10, 10a, 10b, 10c, 10d, 10e) to which the distribution file has already been sent from the selection targets, and stores them in the selection condition storage unit 105. Using the selected selection conditions and the processing capacity information stored in the distribution destination state storage unit 102, an appropriate personal computer is selected as the distribution device responsible for distributing the file. In FIG. 11, the personal computer 10i located in segment 4 is selected as the device in charge of distribution (yet another device in charge of distribution). Note that it is also possible to use the distribution selector 106 of the personal computer 10c to attempt to access each undistributed personal computer placed in another segment, and select the first personal computer with which communication can be established as the distribution device.
Then, the distribution person selection unit 106 of the personal computer 10c transmits distribution information including setting information defining distribution contents and a distribution file to the selected personal computer 10i ((4) in FIG. 11).

The distribution destination state collection unit 103 of the personal computer 10i collects state information including IP addresses and processing capacity information from other personal computers (10j, 10k) placed in the segment 4 where the personal computer is placed. The collected status information is stored in the distribution destination status storage unit 102.
Further, at this time, it is also preferable that the distribution destination state collection unit 103 of the personal computer 10i transmits the collected state information to the personal computer 10c, which is the source of the distribution information.
Then, the file sending unit 104 of the personal computer 10i sends the distribution file to the other personal computers placed in segment 4 ((5) in FIG. 11).

Next, the personal computer 10i, which is yet another device in charge of distribution, attempts to select a personal computer in charge of file distribution from among the undistributed personal computers in other segments.
At this time, the distribution selector 106 of the personal computer 10i cannot access another segment (segment 3) containing undistributed personal computers.
In this case, access prohibition information (backtrack instruction information) is transmitted to the personal computer 10c that is the source of the distribution information ((6) in FIG. 11).

Next, the distribution selection unit 106 of the personal computer 10c, which is the other distribution device that received the access prohibition information, attempts to select a personal computer in charge of file distribution from among the undistributed computers in other segments.
At this time, the distribution selection unit 106 of the personal computer 10c attempts to access other segments including the undistributed personal computers, and if it is accessible, selects the personal computer responsible for distributing the file.

On the other hand, if access is not possible, access prohibition information (backtrack instruction information) is transmitted to the personal computer that is the source of the distribution information.
In this way, access denial information is sent until a distribution device that can access other segments containing undistributed computers is found, and when an accessible distribution device is found, the distribution device uses the A personal computer in charge of distribution is selected, and the selected distribution device collects the distribution destination status and transmits the distribution file in that segment.

In FIG. 11, segment 2 and segment 3 are connected, and the personal computer 10c can access segment 3. Therefore, the distribution selection unit 106 of the personal computer 10c selects the personal computers (10, 10a, 10b) to which the distribution file has already been sent. , 10c, 10d, 10e, 10i, 10j, 10k) from the selection targets, and using the selection conditions stored in the selection condition storage unit 105, the Based on this, an appropriate personal computer is selected as the distribution device responsible for distributing the file.

In FIG. 11, the personal computer 10f located in segment 3 is selected as the device in charge of distribution (yet another device in charge of distribution). Note that it is also possible to use the distribution selector 106 of the personal computer 10c to attempt to access each undistributed personal computer placed in another segment, and select the first personal computer with which communication can be established as the distribution device.
Then, the distribution person selecting unit 106 of the personal computer 10c transmits distribution information including the setting information defining the content of distribution and the distribution file to the selected personal computer 10f ((7) in FIG. 11).

The distribution destination state collection unit 103 of the personal computer 10f collects state information including IP addresses and processing capacity information from other personal computers (10g, 10h) placed in the segment 3 where the personal computer is placed. The collected status information is stored in the distribution destination status storage unit 102.
Further, at this time, it is also preferable that the distribution destination state collection unit 103 of the personal computer 10f transmits the collected state information to the personal computer 10c, which is the source of the distribution information.
Then, the file sending unit 104 of the personal computer 10f sends the distribution file to the other personal computers located in the segment 3 ((8) in FIG. 11).

In this way, the processing by the distribution selection section, the distribution destination status collection section, and the file transmission section on the personal computer selected as the distribution device is continued in the same way until there are no more segments that include computers to which distribution files have not been sent. and execute it repeatedly. As a result, according to the file distribution system of this embodiment, the distribution device executes the file distribution process as if passing the distribution process baton between multiple segments, similar to a maze search. It is now possible to complete file distribution to all computers in a network with a segment configuration.

In this embodiment, transmission of distribution information including configuration information defining distribution contents and distribution files from the file holding server 20 to the personal computer 10 or external computer 10α, which is the device in charge of distribution, is performed using TCP (Transmission Control Protocol). be able to.

Further, it is preferable that the distribution file be transmitted from the personal computer 10, which is the device in charge of distribution, to other personal computers in the same segment by broadcasting using UDP (User Datagram Protocol). Furthermore, the distribution file can also be transmitted by UDP unicast.
Although the distribution file may be transmitted using TCP, it is preferable to use UDP because transmission using TCP generally imposes a larger load on the network than UDP.
Furthermore, the transmission of distribution information from the personal computer 10, which is the device in charge of distribution, to other devices in charge of distribution in other segments is preferably performed by UDP unicast, and may be performed by TCP.

Further, it is preferable that the distribution device collects status information including the IP address and processing capacity information of the personal computer to which the file is distributed using UDP. That is, it is preferable that the distribution device requests each personal computer to send status information (host status) using a UDP packet, and each personal computer sends a reply using a UDP packet.
Further, it is preferable that the status information is transmitted from the personal computer 10 and the external personal computer 10α to the file holding server 20 using TCP.

Next, the processing procedure for transmitting distributed files between personal computers in the file distribution system of this embodiment will be described with reference to FIG.
FIG. 12 shows a sequence in which a distribution file is transmitted from the personal computer 10, which is the device in charge of distribution, to another personal computer 10a in the same segment using UDP packets.

First, the file transmitting section 104 of the personal computer 10 transmits information regarding the file in the distribution information storage section 101 to the personal computer 10a (step 10). It is preferable that the information regarding the file includes the file name, file size, file digest value, installation location, operation on the Internet (replacement upon restart, etc.), and the like.
The file transmitter 104 of the personal computer 10a notifies the personal computer 10 that information regarding the file has been received (step 11).

Next, the file transmitting unit 104 of the personal computer 10 transmits each divided part (packet) of the distribution file in the distribution information storage unit 101 to the personal computer 10a by broadcast or unicast (step 12). In response, the file transmitting unit 104 of the personal computer 10a notifies the personal computer 10 of information indicating that a portion of the file has been received for each divided part (step 13).

At this time, the size at which the distributed file is divided is, for example, from 32 Kbytes to 1 Kbyte. Considering that the number of bytes that can receive UDP packets differs depending on the type of router or hub in the network, before sending the divided parts, check what size UDP packets can be received, and select the packets of the confirmed size. Send part of the file with .
Further, the file transfer speed can be adjusted based on the interval at which packets of a portion of the file are sent. In other words, the file transfer speed can be adjusted by changing the number of packets transmitted per unit time for a portion of the file.

When the file transmitting unit 104 of the personal computer 10a receives the entire file, it notifies the personal computer 10 of completion of distribution (step 14). Note that in step 11 or step 14, if the entire same file has already been stored in the file storage unit 102 of the personal computer 10a, it is also preferable to have the file sending unit 104 of the personal computer 10a notify the personal computer 10 of the existing existence of the file. .
When the personal computer 10 receives the distribution completion notification or the existing notification from the personal computer 10a, the personal computer 10 takes this as the distribution status and stores it in the distribution information storage unit 101 for each computer (its identification information) and for each file (its identification information). (Step 15).

Next, a processing procedure for transmitting a distribution file between the file holding server 20 and an external personal computer in the file distribution system of this embodiment will be explained with reference to FIG.
FIG. 13 shows a sequence in which the external personal computer 10α acquires a distributed file from the file holding server 20 through a TCP acquisition session.
First, the file acquisition unit 108 of the external personal computer 10α transmits a request to acquire setting information defining distribution contents to the file holding server 20 at a certain timing (step 20).

Next, the transmitting unit of the file holding server 20 transmits the setting information that defines the distribution content stored in the distribution information storage unit 201 to the external personal computer 10α (step 21).
Next, the file acquisition unit 108 of the external personal computer 10α downloads each divided part (packet) of the distribution file in the distribution information storage unit 201 from the file holding server 20 using an acquisition session (step 22).

When the file acquisition unit 108 of the external computer 10α receives the entire file, it notifies the file holding server 20 of completion of distribution (step 23). Note that if the entire same file is already stored in the distribution information storage unit 101 of the external computer 10α prior to step 22 or in step 23, the file acquisition unit 108 of the external computer 10α is notified of the existing existence of the file by the file holding server. It is also preferable to notify 20.

When the transmission unit of the file holding server 20 receives the distribution completion notification or the existing notification from the external computer 10α, the transmission unit sends the distribution completion notification to the external computer 10α or the existing notification to the personal computer 10, which is the distribution device. Send a notification (step 24).
When the personal computer 10 receives the notification of completion of distribution to the external personal computer 10α or the existing notification, the personal computer 10 stores this as the distribution status in the distribution information storage unit 101 for each computer and for each file (step 25).

According to the file distribution system of this embodiment, the file holding server selects a device in charge of distribution from among the computers in the network within the organization, and the device in charge of distribution can distribute distributed files to computers in multiple segments. can. At this time, the device in charge of distribution is sequentially selected for each segment based on the state of the personal computer by the device in charge of distribution that is the source of the distribution information. Therefore, according to the file distribution system of this embodiment, it is possible to accurately distribute distribution files to each personal computer located in a wide variety of networks while reducing the network load.

[Second embodiment]
Next, a file distribution system according to a second embodiment of the present invention will be described with reference to FIGS. 14 to 16.
The file distribution system of this embodiment takes into account the operating time of each computer and is designed to complete the transmission of distributed files by the distribution deadline even to computers with short operating hours. Different from one embodiment. In other respects, the configuration can be similar to that of the first embodiment.

First, the purpose of the file distribution system of this embodiment will be explained with reference to FIG. FIG. 14 shows the average operating time of each personal computer. As described above, personal computers in the in-house network 1 generally have different lengths of time when they are powered on and in operation depending on their purpose of use. For example, some servers operate 24 hours a day, while others, such as personal computers used on business trips, operate for only about an hour.

This difference in average operating time between computers is an important problem for administrators who distribute files. That is, if an important distribution file needs to be distributed to all computers within the distribution deadline, it is not preferable to send it to all computers at once because this will cause network congestion. On the other hand, there is a problem in that it is not easy to adjust the timing of distribution because it is assumed that distribution will not be completed within the distribution deadline, especially for personal computers with a short average operating time.

Therefore, the file distribution system of this embodiment aims to reduce the burden on the administrator who distributes files by determining the file transfer speed in consideration of the average operating time of the personal computer.
That is, in the file distribution system of this embodiment, as shown in FIG. 15, the personal computer 10 includes an operating time measurement unit 109 that calculates the average operating time of the personal computer to which the file is distributed and stores it in the distribution destination status storage unit 102. and a distribution speed adjustment section 110 that determines the transfer speed (delivery speed) of files to the corresponding personal computer based on the average operating time and updates the distribution information storage section 101, and the personal computer's distribution person selection section 106 and The file transmitter 104 is characterized in that the file transmitter 104 transmits the distributed file to the corresponding personal computer at the determined transfer speed.

Note that the personal computer 10 in the file distribution system of this embodiment has a different configuration from the personal computer 10 of the first embodiment, so it may be referred to as a personal computer 10', etc.; For the sake of convenience, the personal computer 10 is also used in this embodiment due to the relationship described above. Similarly, a personal computer 10 in a third embodiment to be described later may also be referred to as a personal computer 10'', but is referred to as a personal computer 10.

In addition, in the file distribution system of this embodiment, the distribution information storage unit 101 of the personal computer 10 and the distribution information storage unit 201 of the file holding server 20 store a distribution deadline for each file, and the distribution speed adjustment unit 110 The present invention is characterized in that, based on the time and the distribution deadline, the transfer speed of the file to the corresponding personal computer is determined so that the distribution of the file is completed within the distribution deadline.

Specifically, the operating time measurement unit 109 in each personal computer creates a file that records the operating time, for example, on a daily basis at the timing when the personal computer starts up. A file can be created on a daily basis by changing the name for each date. Furthermore, when creating files for each hour, a different file may be created for each hour. Then, if the same file does not already exist in the file, 0 is written, and if it already exists, the value of the file is incremented by +1 and written. By performing this operation every minute, the operating time for each day is recorded in a file in minutes. If you record every hour, it will be in units of 1 hour, and if you record every second, it will be in units of 1 second. The operating times recorded in this manner can be averaged over a certain period of time and used as the average operating time for that period.

Furthermore, the distribution speed adjustment unit 110 calculates the time that can be used for distribution (distribution usage time) by the distribution deadline based on the average operating time and the distribution deadline.
Then, based on the size of the distribution file and the distribution usage time, the distribution speed adjustment unit 110 adjusts the file transfer speed (number of bytes transferred per unit time or packet (e.g. number of transmissions).

Next, with reference to FIG. 16, a distribution processing procedure that takes average operating time into account will be described.
First, the operating time measurement unit 109 of the personal computer 10 (each personal computer) measures the average operating time of each personal computer at a specific timing as described above, and stores this in the distribution destination status storage unit 102 (step 30 ). The average operating time of each personal computer stored in the distribution destination status storage unit 102 is transmitted to and stored in the distribution device and the file holding server 20 as distribution destination status information.

In addition, a transfer speed measuring unit (not shown) of the personal computer 10, which is the device in charge of distribution, measures the file transfer speed (actual value) between the personal computer that receives the distributed file, and calculates this for each personal computer identification information. It is stored in a transfer rate storage unit (not shown) (step 31).
Then, the distribution speed adjusting unit 110 of the personal computer 10 calculates the time that can be used for distribution (distribution usage time) by the distribution deadline for each computer that receives the distribution file (step 32).

That is, the distribution usage time is calculated based on the distribution deadline date and time of the distribution file stored in the distribution information storage unit 101 and the average operating time of the personal computer.
For example, if a certain distribution file is to be distributed within three days and the average operating time of the personal computer to which the file is distributed (which receives the distribution file) is one hour, the distribution usage time will be three hours. Furthermore, if the average operating time of the personal computer to which the file is distributed is 24 hours, the distribution usage time is 72 hours.

Next, the distribution speed adjustment unit 110 of the personal computer 10 calculates the size of the distribution file (all files to be distributed) (step 33). Then, the file transfer speed is determined based on the distribution usage time and the size of the distributed file (step 34). At this time, the shorter the average operating time of a computer, the faster the file transfer speed must be.
The transfer rate of a file can be adjusted based on the interval at which packets of a portion of the file are sent. That is, by changing the number of packets sent per unit time, it is possible to adjust the file transfer speed.
Then, the file transmitting unit 104 of the personal computer 10 starts transmitting the distributed file at the determined transfer speed for each personal computer to which the file is distributed (step 35).

Here, the operating time measurement unit 109 of each personal computer measures the average operating time at a specific timing, and the average operating time of each personal computer is transmitted to the distribution device and the file holding server 20 as status information of the distribution destination. Updated (step 36).
Then, if the average operating time of the computer to which the file is to be distributed has been updated, the distribution speed adjustment unit 110 of the personal computer 10 recalculates the distribution usage time and redetermines the file transfer speed (step 37). .

The file transmitter 104 of the personal computer 10 repeatedly executes the processes from step 36 to step 38 until it receives a distribution completion notification of the distribution file from the computer that receives the distribution file (Yes in step 38).
Furthermore, the distribution speed adjustment unit 110 of the personal computer 10 can predict in advance that the distribution will not be completed in time for the deadline based on the file transfer speed (actual value) to the personal computer that receives the distributed file.

If the file distribution system of this embodiment is configured in this way, the file transfer speed can be adjusted for each computer so that the distribution file transmission is completed by the distribution deadline, taking into account the operating time of each computer. It becomes possible to do so.
Also, for example, even if the average operating time of the computer to which files are being distributed becomes shorter than when distribution started, the file transfer speed can be increased accordingly, reducing the load on the network. It becomes possible to complete the distribution before the distribution deadline.
In this way, the file distribution system of this embodiment does not rush the distribution of distribution files, but takes into consideration the operating time of each computer and adjusts the distribution speed of distribution files to each computer to reduce the load on the network. It is adjustable.

[Third embodiment]
Next, a file distribution system according to a third embodiment of the present invention will be described with reference to FIGS. 17 to 20.
The file distribution system of this embodiment differs from the first embodiment in that it is possible to reduce the overall time required for transmitting the distribution file by dividing the distribution file. In other respects, the configuration can be similar to that of the first embodiment.

First, file distribution processing will be described using an example in which it takes six hours at the fastest to transmit one distribution file.
In this case, as shown in FIG. 17, it takes 6 hours to send the distribution file from the file holding server 20 to the personal computer 10, which is the device in charge of distribution of segment 1, and then from this device in charge of distribution to other devices in charge of distribution of segment 2. It takes 6 hours to send the distribution file to the personal computer 10c, which is the device, and an additional 6 hours to send the distribution file to the other computers (10d, 10e) in segment 2.
Therefore, in this case, 18 hours are required to complete the transmission of the distribution file to all the computers in the company network 1.

On the other hand, file distribution processing will be explained using an example in which one distribution file is divided into three and the three divided files are sequentially transmitted. Note that the divided file of this embodiment is different from the divided parts (packets) in UDP or TCP described above.
In this case, as shown in FIG. 18, it will take 2 hours x 3 = 6 hours to sequentially send the divided files to the PC in charge of distributing segment 1, but the timing when the reception of divided file 1 is completed (2 time), it is possible to immediately start transmitting divided file 1 to the device in charge of distributing segment 2. Furthermore, when the device in charge of distributing segment 2 completes receiving divided file 1 (2 hours + 2 hours = 4 hours later), it can immediately start sending divided file 1 to other computers in segment 2. .

Therefore, it takes 2 hours + 2 hours + 2 hours x 3 = 10 hours to complete sending the distribution file to all the computers in the company network 1.
Furthermore, if you divide one distribution file into 6 parts and send the 6 divided files in order, it will take 1 hour + 1 hour to complete sending the distribution file to all computers in internal network 1. +1 hour x 6 = 8 hours.

Therefore, as shown in FIG. 19, the file holding server 20 in the file distribution system of this embodiment has a configuration including a file dividing unit 206 that divides the distribution file into a specific number of files and generates divided distribution files. It is preferable to do so.
Further, as shown in FIG. 20, the personal computer 10 (each personal computer) in the file distribution system of this embodiment includes a file dividing unit 111 that divides the distributed file into a specific number of files and generates divided distributed files. It is preferable to set it as a structure.
It is preferable that the distribution selection section 204 of the file holding server 20, and the distribution selection section 106 and file transmission section 104 of the personal computer 10 sequentially transmit the divided distribution files by their respective file division sections.

By configuring the file distribution system of the present embodiment in this manner, it is possible to improve file transmission efficiency, and particularly in the case of an in-house network 1 with a large number of segments, excellent effects can be achieved.

The file distribution system of the above embodiment can be realized using a computer controlled by the file distribution program of the present invention. The CPU of the computer sends commands to each component of the computer based on the file distribution program, and performs predetermined processing necessary for the operation of each processing device (file holding server, personal computer) in the file distribution system, such as the device in charge of distribution. selection processing, selection condition learning processing, distribution destination status information collection processing, file transmission processing, placement determination processing, file acquisition processing, operating time measurement processing, distribution speed adjustment processing, and file division processing. etc. In this way, each process and operation in the file distribution system of the present invention can be realized by specific means in which a program and a computer cooperate.

The program is stored in advance in a recording medium such as a ROM or RAM, and the program is read into the computer from the recording medium installed in the computer and executed, but it can also be read into the computer via a communication line, for example.
Further, the recording medium that stores the program can be constituted by, for example, a semiconductor memory, a magnetic disk, an optical disk, or any other computer-readable recording means.

As explained above, according to the file distribution system and file distribution program according to the embodiments of the present invention, it is possible to reduce the network load during file distribution, and to send files to each information processing terminal located in a wide variety of networks. It is possible to accurately distribute the information.

It goes without saying that the present invention is not limited to the above-described embodiments, and that various modifications can be made within the scope of the present invention.
For example, by combining the second embodiment and the third embodiment, it is possible to make appropriate changes such as adjusting the file transfer speed based on the average operating time and making it possible to send divided files.

The present invention can be suitably used particularly when a large file needs to be distributed to many information processing terminals in various networks by a certain deadline.

1 Internal network (organizational network)
2 External environment 10 Personal computer (information processing terminal)
101 Distribution information storage unit 102 Distribution destination status storage unit 103 Distribution destination status collection unit 104 File transmission unit 105 Selection condition storage unit 106 Distribution person selection unit 107 Placement determination unit 108 File acquisition unit 109 Operating time measurement unit 110 Distribution speed adjustment unit 111 File division unit 20 File holding server 201 Distribution information storage unit 202 Distribution destination status storage unit 203 Selection condition storage unit 204 Distribution person selection unit 205 Selection condition learning unit 206 File division unit 30 Communication line

Claims (10)

A file distribution system that distributes files stored in a file holding server connectable to the network via a communication line to multiple information processing terminals arranged in multiple segments in a network within an organization. There it is,
The file holding server includes a distribution information storage unit that stores distribution information that includes setting information that defines distribution contents and distribution files, and a distribution destination that stores status information that includes processing capacity information of information processing terminals to which the file is distributed. comprising a state storage unit, a selection condition storage unit that stores conditions for selecting an information processing terminal in charge of file distribution, and a distribution selection unit that selects an information processing terminal in charge of file distribution;
The information processing terminal includes a distribution information storage unit that stores distribution information that includes configuration information that defines distribution content and a distribution file, and a distribution destination that stores status information that includes processing capacity information of the information processing terminal to which the file is distributed. A state storage unit, a file transmission unit that transmits a distribution file, and a distribution selection unit that selects an information processing terminal in charge of file distribution,
The distribution selection unit of the file holding server selects an information processing terminal in charge of distributing files as a distribution device based on the conditions and the processing capacity information in the file holding server, and selects the information processing terminal in charge of distribution as a distribution device. send said distribution information;
The file transmission unit of the distribution device transmits the distribution file to another information processing terminal located in the same segment,
The distribution selection unit of the distribution device selects the information processing terminal in charge of file distribution from among the information processing terminals arranged in other segments, and selects the selected other distribution device. Send the distribution information to the device in charge,
A file distribution system characterized in that the file transmission unit of the other distribution device transmits the file to another information processing terminal arranged in the other segment. The information processing terminal includes a distribution destination status collection unit that collects the status information,
A distribution destination status collection unit of the distribution device collects the status information from an information processing terminal that is located in the same segment or another segment and is capable of acquiring the status information;
The distribution destination status collection unit of the other distribution device collects the status information from the information processing terminals arranged in the other segment, and stores it in the distribution destination status storage unit of the other distribution device. Send it to the device in charge of distribution,
A distribution destination status collection unit of the distribution device stores the collected or transmitted status information in a distribution destination status storage unit of the distribution device and transmits it to the file holding server;
2. The file distribution system according to claim 1, wherein a distribution destination status storage unit of the file holding server stores the transmitted status information. The information processing terminal includes a selection condition storage unit that stores conditions for selecting an information processing terminal in charge of file distribution,
A claim characterized in that the distribution selection unit of the distribution device selects an information processing terminal in charge of file distribution as the other distribution device based on the conditions and the processing capacity information of the distribution device. The file distribution system according to item 1 or 2. The file according to any one of claims 1 to 3, wherein the processing capacity information is at least one of CPU performance, memory size, free disk space, average operating time, and past distribution success rate. distribution system. 5. The file distribution system according to claim 1, wherein the plurality of segments include a network segment that is not connected to the communication line. The information processing terminal includes a placement determination unit that determines whether the information processing terminal is placed in a network within the organization, and a file acquisition unit that acquires the setting information and the distribution file from the file holding server. Prepare,
If the placement determination unit determines that the information processing terminal is not placed in the network within the organization, the file acquisition unit accesses the file holding server, receives the setting information, and processes the settings. The file distribution system according to any one of claims 1 to 5, wherein the file distribution system receives the distribution file from the file holding server when the information processing terminal is determined to be a file distribution destination based on the information. . The information processing terminal includes an operating time measurement unit that calculates an average operating time of an information processing terminal to which a file is distributed and stores it in the distribution destination state storage unit, and a operating time measurement unit that calculates an average operating time of an information processing terminal to which a file is distributed and stores it in the distribution destination state storage unit, and a Equipped with a distribution speed adjustment section that determines the file transfer speed,
7. The information processing terminal according to claim 1, wherein the distribution selection section and the file transmission section of the information processing terminal transmit the distribution file to the corresponding information processing terminal at the determined transfer rate. File distribution system. A distribution deadline is stored for each distribution file in a distribution information storage unit of the information processing terminal and the file holding server,
The distribution speed adjustment unit determines the transfer speed to the corresponding information processing terminal based on the average operating time and the distribution deadline so that the distribution of the file is completed within the distribution deadline. The file distribution system according to claim 7. The file holding server and the information processing terminal each include a file dividing unit that divides the distribution file into a specific number and generates divided distribution files,
Any one of claims 1 to 8, wherein the distribution selection section of the file holding server and the distribution selection section and file transmission section of the information processing terminal sequentially transmit the divided distribution files. Described file distribution system. A file distribution program that distributes files stored in a file holding server that can be connected to the network via a communication line to multiple information processing terminals arranged in multiple segments in a network within an organization. There it is,
a distribution information storage unit that stores distribution information including setting information and distribution files for the information processing terminal; and a distribution destination state that stores status information including processing capacity information of the information processing terminal to which the file is distributed. a storage unit, a distribution destination status collection unit that collects the status information, a file transmission unit that transmits the file, a selection condition storage unit that stores conditions for selecting an information processing terminal in charge of file distribution; It functions as a distribution responsible selection unit that selects the information processing terminal to be responsible for,
causing the distribution destination status collection unit to collect the status information from information processing terminals that are placed in the same segment or other segments and that are capable of acquiring the status information, and distribute the collected or transmitted status information to the distribution destination status collection unit; storing it in the destination state storage unit and transmitting it to the file holding server or the information processing terminal of the source that transmitted the distribution information;
causing the file transmission unit to transmit the distribution file to another information processing terminal located in the same segment;
causing the distribution selection unit to select an information processing terminal in charge of file distribution as another distribution device from information processing terminals arranged in other segments based on the conditions and the processing capacity information; A file distribution program that causes the distribution information to be transmitted to the other distribution device.

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