JP2017011637A - Data transmission system and data transmission method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a data transmission system capable of quickly transmitting a piece of data to a plurality of users.SOLUTION: A data instruction transmission unit 203 transmits, to a first non-receiving terminal device which has not yet received data, data and a response instruction to the effect that reception completion notice is transmitted to a data transmitter in the case that the first non-receiving terminal device receives the data. A data transfer instruction part 205 transfers data received by a first reception terminal device corresponding to the first non-receiving terminal device to a second non-receiving terminal device which has not yet received the data in the case that the reception completion notice is received, and transmits a transfer instruction to the effect that a transfer completion notice is transferred to the data transmitter in the case that the second non-receiving terminal device has received the data. A non-receiving terminal determination part 207 determines whether or not there are other non-receiving terminal devices when the transfer completion notice is received, and completes a job in the case that there are no other non-receiving terminal devices.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a data transmission system and a data transmission method.

  Conventionally, in an image processing system in which an image processing apparatus such as a scanner, a copier, or a multifunction peripheral is connected to a plurality of terminal devices, a transmission job for transmitting an image to each of the plurality of terminal devices is executed. The image processing device generates a transmission job for each terminal device and basically transmits the job to each terminal device in turn. Therefore, in the terminal device to which the transmission job is transmitted last, there is a problem that waiting for the transmission job occurs and it takes a long time to receive the image data of the transmission job. In response to such a problem, for example, Japanese Patent Application Laid-Open No. 2006-254162 (Patent Document 1) discloses an image forming apparatus that substitutes a job based on the status of the apparatus.

JP 2006-254162 A

  In recent education sites, image processing devices and terminal devices have become widespread. One printer or multifunction device is installed in one classroom, and desktop or tablet terminal devices are distributed to students in the classroom. , Used in class.

  In such a classroom, it is assumed that the teacher scans some material as image data and shares the image data with all the student's terminal devices. In such a situation, the conventional image processing system has a problem that it takes a very long time until transmission jobs are generated for the number of students and image data is transmitted to all students.

  Also, in the image processing system, when there are multiple transmission jobs, priorities are set for each transmission job, the execution order of each transmission job is changed, or the order of transmission jobs is changed according to user operations. There is technology to do. In recent cloud technologies, there are an automatic data transmission function and a data sharing function to a plurality of terminal devices.

  However, with these technologies, the transmission speed of data to a plurality of terminal devices does not increase, and the transmission source transmits data to a plurality of transmission destinations, respectively. Therefore, it takes time to complete a plurality of transmission jobs. When considered as a whole, there is a problem that it has not been shortened.

  Therefore, the present invention has been made to solve the problem, and an object of the present invention is to provide a data transmission system and a data transmission method capable of quickly transmitting one data to a plurality of users.

  A data transmission system according to one aspect of the present invention is a system in which a data transmission device and a plurality of terminal devices are communicably connected, and includes a data instruction transmission unit, a data reception determination unit, a data transfer instruction unit, A data transfer determining unit and an unreceived terminal determining unit. When executing a job for transmitting specific data to the plurality of terminal devices, the data instruction transmission unit sends the data and the first data to the first unreceived terminal device that has not yet received the data. When the unreceived terminal device receives the data, it transmits a reply instruction indicating that a reception completion notification is returned to the data transmitting device. The data reception determination unit determines whether or not a reception completion notification from the first unreceived terminal device has been received. When the reception completion notification is received, the data transfer instruction unit sends the received data to the first receiving terminal device corresponding to the first unreceiving terminal device. Transfer to a second non-receiving terminal device, and when the second non-receiving terminal device receives the data, a transfer instruction is transmitted to the effect that a transfer completion notification is returned to the data transmitting device. The data transfer determination unit determines whether or not a transfer completion notification is received from the first receiving terminal device. When the transfer completion notification is received, the unreceived terminal determination unit determines whether there is no other unreceived terminal device among the terminal devices, and when there is no other unreceived terminal device, Complete the job.

  A data transmission method according to an aspect of the present invention is a method of the system, wherein a data instruction transmission step, a data reception determination step, a data transfer instruction step, a data transfer determination step, and a non-reception terminal determination step And comprising. In the data instruction transmission step, when executing a job for transmitting specific data to the plurality of terminal devices, the data and the first data are transmitted to a first unreceived terminal device that has not yet received the data. When the unreceived terminal device receives the data, it transmits a reply instruction indicating that a reception completion notification is returned to the data transmitting device. The data reception determination step determines whether or not a reception completion notification from the first unreceived terminal device has been received. In the data transfer instruction step, when the reception completion notification is received, the first receiving terminal device corresponding to the first unreceiving terminal device receives the received data and the data has not yet been received. Transfer to a second non-receiving terminal device, and when the second non-receiving terminal device receives the data, a transfer instruction is transmitted to the effect that a transfer completion notification is returned to the data transmitting device. The data transfer determination step determines whether or not a transfer completion notification from the first receiving terminal device has been received. In the unreceived terminal determination step, when the transfer completion notification is received, it is determined whether or not there is no other unreceived terminal device among the terminal devices, and when there is no other unreceived terminal device, Complete the job.

  According to the present invention, one data can be quickly transmitted to a plurality of users.

1 is a conceptual diagram illustrating an overall configuration of an image processing system according to an embodiment of the present invention. 1 is a functional block diagram of an image processing system in an embodiment of the present invention. It is a flowchart for showing the execution procedure of the embodiment of the present invention. FIG. 4A shows an example of a group transmission job table in the embodiment of the present invention (FIG. 4A), and the image processing apparatus in the embodiment of the present invention transmits image data and a reply instruction to the first unreceived terminal device. It is a figure (FIG.4 (B)) which shows an example in the case of doing. FIG. 5A shows an example in which the image processing apparatus according to the embodiment of the present invention transmits a transfer instruction to the first receiving terminal apparatus (FIG. 5A), and the image processing apparatus according to the embodiment of the present invention is the first FIG. 5 is a diagram (FIG. 5B) showing an example when a transfer instruction is transmitted from the receiving terminal device to the third receiving terminal device. FIG. 6A shows an example of a case where the image processing apparatus in the embodiment of the present invention has not received a reception completion notification from the first unreceived terminal apparatus, and the image processing apparatus in the embodiment of the present invention. FIG. 6 is a diagram (FIG. 6B) showing an example when a transfer completion notification is not received from the first receiving terminal device. It is a figure which shows an example of transmission of the image data from the 1st turn to the 3rd turn in the embodiment of the present invention. It is a figure which shows an example of the table which shows the transmission condition for every turn in embodiment of this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings to provide an understanding of the present invention. In addition, the following embodiment is an example which actualized this invention, Comprising: The thing of the character which limits the technical scope of this invention is not. Moreover, the alphabet S added before the number in a flowchart means a step.

  Hereinafter, a data transmission system in which one image processing device and a plurality of terminal devices are connected will be described as an example of an embodiment of the present invention. Note that the image processing apparatus according to the present invention corresponds to, for example, a multi-function peripheral (MFP) having functions such as a facsimile, a copy, a scanner, and a printer.

  As shown in FIG. 1, the data transmission system 1 is configured by connecting one image processing apparatus 100 and a plurality of terminal apparatuses 102 via a network 101 so that they can communicate with each other. The image processing apparatus 100 receives a setting condition regarding a document job from a user via the operation unit, drives each unit, and executes the job. Further, the image processing apparatus 100 can transmit the generated image data to each terminal device 102 via the network 101. Further, the terminal device 102 can transmit a specific notification to the image processing device 100 or transmit (transfer) the image data to another terminal device 102.

  Note that control circuits of the image processing apparatus 100 and the terminal apparatus 102 are not shown, but a CPU (Central Processing Unit), a ROM (Read Only Memory), a RAM (Random Access Memory), an SSD (Solid State Drive), and an HDD (Hard). Disk Drive), drivers corresponding to each drive unit are connected by an internal bus. The CPU of the image processing apparatus 100 and the terminal apparatus 102 uses, for example, a RAM as a work area, executes a program stored in a ROM, SSD, HDD, or the like, and based on the execution result, data and instructions from the driver Signals, commands, etc. are exchanged, and the operation of each drive unit relating to the execution of various processes is controlled. Further, for each unit (shown in FIG. 2) to be described later other than the drive unit, the CPU implements each unit by executing each program. The ROM, RAM, SSD, HDD, and the like store programs and data for realizing each unit described below.

  Next, the configuration and execution procedure according to the embodiment of the present invention will be described with reference to FIGS. First, the teacher causes the image reading unit of the image processing apparatus 100 to read the image data of a specific material, designates the terminal device 102 owned by each of the plurality of students as a transmission destination, and the image data is transmitted to a group of transmission destinations. Enter the group transmission job to be sent to. Then, the job reception unit 201 of the image processing apparatus 100 receives the input group transmission job (FIG. 3: S101) and notifies the non-reception terminal selection unit 202 to that effect. Receiving the notification, the unreceived terminal selection unit 202 selects the first unreceived terminal apparatus 102a that has not yet received the image data from among the plurality of terminal apparatuses 102 specified by the group transmission job (see FIG. 3: S102).

  Since the image data has not yet been transmitted, for example, the unreceived terminal selection unit 202, as shown in FIG. 4A, identifies identification information 401 (a plurality of terminal devices 102 specified by the group transmission job). For example, the MAC address or the like and reception information 402 indicating whether or not the image data has been received (for example, information indicating that the image data has been received is set to “1”, and the image data has not yet been received) The table 400 is created in association with the information indicating “0”). Since image data has not yet been transmitted, “0” is stored in association with the reception information 402 in the identification information 401 of all the terminal apparatuses 102. The unreceived terminal selection unit 202 selects, for example, the terminal device terminal device 102a of the identification information 401 “aaa” stored in the upper part of the identification information 401 of the table 400 as the first unreceived terminal device.

  When the unreceived terminal selection unit 202 completes the selection of the first unreceived terminal apparatus 102a, the data instruction transmission unit 203 notifies the data instruction transmission unit 203 to that effect, and the data instruction transmission unit 203 that has received the notification notifies A reply instruction to the first unreceived terminal apparatus 102a that the image data and a reception completion notification are returned to the image processing apparatus 100 when the first unreceived terminal apparatus 102a receives the image data; Is transmitted (FIG. 3: S103).

  For example, as shown in FIG. 4B, the data instruction transmission unit 203 transmits the image data 403 and the reply instruction 404 to the first unreceived terminal device 102a via the network 101.

  Here, when the data instruction transmission unit 203 completes the transmission, the data reception determination unit 204 notifies the data reception determination unit 204, and the data reception determination unit 204 that receives the notification receives the reception from the first unreceived terminal device 102a. It is determined whether or not a completion notification has been received (FIG. 3: S104).

  For example, the data reception determination unit 204 measures the elapsed time from the time when the reply instruction 404 is transmitted, and the first unreceived terminal until the elapsed time exceeds the first threshold time. It is determined whether or not a reception completion notification from the device 102a has been received.

  Here, when the first unreceived terminal apparatus 102a receives the image data 403 and the reply instruction 404, the first unreceived terminal apparatus 102a generates a specific reception completion notice 405 according to the reply instruction 404, and outputs it to the image processing Reply to the device 100.

  In S104, when the data reception determination unit 204 receives the reception completion notification 405 before the elapsed time exceeds the threshold time as a result of the determination (FIG. 3: S104 YES), the first unreceived terminal The device 102a is a first receiving terminal device.

  For example, as shown in FIG. 4A, the data reception determination unit 204 rewrites “0” in the reception information 402 of the identification information 401 “aaa” stored in the upper part of the table 400 to “1”. The first unreceived terminal device 102a is a first receiving terminal device.

  Next, the data reception determination unit 204 notifies the data transfer instruction unit 205 to that effect, and the data transfer instruction unit 205 that has received the notification notifies the first receiving terminal device 102a of the received image data. 403 is transferred to the second unreceived terminal apparatus 102b that has not yet received the image data. When the second unreceived terminal apparatus 102b receives the image data 403, a transfer completion notification is sent to the image processing apparatus. A transfer instruction to reply to 100 is transmitted (FIG. 3: S105). That is, the receiving terminal device 102a functions as a transmission source of the image data 403.

  For example, the data transfer instruction unit 205 includes the identification information 401 “bbb” stored next to the terminal device 102 of the identification information 401 whose reception information 402 is “0” among the identification information 401 of the table 400, for example. "Is selected as the second unreceived terminal device 102b. Then, the data transfer instruction unit 205 generates a transfer instruction 500 for the second non-receiving terminal device 102b, and sends the transfer instruction 500 to the first receiving terminal device 102a as shown in FIG. Send.

  Here, when the data transfer instructing unit 205 completes the transmission, the data transfer determining unit 206 notifies the data transfer determining unit 206 to that effect, and the data transfer determining unit 206 that has received the notification completes the transfer from the first receiving terminal device 102a. It is determined whether a notification has been received (FIG. 3: S106).

  For example, the data transfer determination unit 206 measures the elapsed time from the time when the transfer instruction 500 is transmitted, and the first receiving terminal device until the elapsed time exceeds the second threshold time. It is determined whether a transfer completion notification from 102a has been received.

  On the other hand, when the first receiving terminal device 102a receives the transfer instruction 500, the first receiving terminal device 102a issues a reception completion notification when the second non-receiving terminal device 102b receives the image data 403 according to the transfer instruction 500. A reply instruction 501 for replying to the first receiving terminal apparatus 102a is generated, and the image data 403 and the reply instruction 501 are transferred to the second non-receiving terminal apparatus 102b.

  When the second unreceived terminal apparatus 102b receives the image data 403 and the reply instruction 501, a specific reception completion notice 502 is generated according to the reply instruction 501 and is received as the first reception. A reply is sent to the terminal device 102a.

  When the first receiving terminal device 102 a receives the reception completion notification 502, a specific transfer completion notification 503 is generated according to the transfer instruction 500, and this is returned to the image processing device 100.

  If the data transfer determination unit 206 receives the transfer completion notification 503 before the elapsed time exceeds the threshold time as a result of the determination in S106 (FIG. 3: S106 YES), the second unreceived terminal The device 102b is assumed to be a second receiving terminal device.

  For example, the data transfer determination unit 206 rewrites “0” in the reception information 402 of the identification information 401 “bbb” stored in the table 400 to “1”, thereby changing the second unreceived terminal device 102 b to the first non-reception terminal device 102 b. A second receiving terminal device is assumed.

  Next, the data transfer determination unit 206 notifies the non-reception terminal determination unit 207 to that effect, and the non-reception terminal determination unit 207 that has received the notification notifies the other non-reception terminal devices of the terminal device 102. It is determined whether or not there is any (FIG. 3: S107).

  For example, the unreceived terminal determination unit 207 searches the identification information 401 in the table 400 for the terminal device 102 having the identification information 401 whose reception information 402 is “0”. Here, for example, since the reception information 402 of the identification information 401 “ccc” is “0”, as a result of the determination, in S107, the unreceived terminal determination unit 207 determines that there is the other unreceived terminal device. (FIG. 3: S107 NO), the fact is notified to the unreceived terminal selection unit 202, and the process proceeds to S102.

  The non-reception terminal selection unit 202 selects the third non-reception terminal device 102c that has not yet received the image data (FIG. 3: S102), and the data instruction transmission unit 203 performs the selection as described above. The image data and the reply instruction are transmitted to the third unreceived terminal apparatus 102c that has been made (FIG. 3: S103). That is, the image processing apparatus 100 functions as a transmission source of image data. Then, the data reception determination unit 204 determines whether or not a reception completion notification from the third non-receiving terminal device 102c has been received (FIG. 3: S104).

  Here, when the data reception determination unit 204 receives the reception completion notification (FIG. 3: S104 YES), the third unreceived terminal device 102c is set as a third receiving terminal device. The data transfer instruction unit 205 sends the received image data 403 to all of the receiving terminal devices (first receiving terminal device 102a, second receiving terminal device 102b, and third receiving terminal device 102c). Is transferred to another unreceived terminal device, and when the unreceived terminal device receives the image data 403, a transfer instruction is transmitted to the effect that a transfer completion notification is returned to the image processing device 100 (FIG. 3). : S105).

  For example, as shown in FIG. 5B, the data transfer instruction unit 205 sends a transfer instruction 504 for transferring the image data 403 to the fourth non-receiving terminal apparatus 102d to the first receiving terminal apparatus 102a. And transmits a transfer instruction 505 for transferring the image data 403 to the fifth unreceived terminal device 102e to the second receiving terminal device 102b, and transmits the image data 403 to the third receiving terminal device 102c. Is transmitted to the sixth unreceived terminal apparatus 102f. That is, all the receiving terminal devices function as image data transmission sources. Accordingly, it is possible to transfer received image data to unreceived terminal devices all at once using the receiving terminal device. In particular, as the number of receiving terminal devices increases, the number of terminal devices that transmit image data increases. Compared to the case where the image processing device 100 transmits image data to each terminal device as a transmission job. Thus, the processing time can be dramatically shortened. Further, since the image processing apparatus 100 only needs to transmit a transfer instruction to the receiving terminal apparatus, the processing becomes simple.

  By the way, in S104, for example, when the first unreceived terminal apparatus 102a cannot receive the image data 403 and the reply instruction 404 for some reason, the following is performed. That is, since the first unreceived terminal device 102a does not send back the reception completion notification, the data reception determination unit 204 does not receive the reception completion notification, and the elapsed time is the first threshold value. Exceeding time.

  Then, the data reception determination unit 204 determines not to receive the reception completion notification from the first non-receiving terminal device 102a (FIG. 3: S104 NO), notifies the non-receiving terminal selection unit 202 to that effect, and S102 Migrate to The non-receiving terminal selection unit 202 that has received the notification, as shown in FIG. 6A, is a non-receiving terminal device that is different from the first non-receiving terminal device 102a (for example, the second non-receiving terminal device 102b). (FIG. 3: S102), the data instruction transmission unit 203 transmits the image data 403 and the reply instruction 600 to the selected second unreceived terminal apparatus 102b (FIG. 3: S103). That is, the image data 403 and the reply instruction 600 are smoothly transmitted to the non-receiving terminal device by changing from the non-receiving terminal device 102a to which the reception completion notification is not returned to another new non-receiving terminal device 102b. It becomes possible.

  Here, if the data reception determination unit 204 receives a reception completion notification from the second non-receiving terminal device 102b (FIG. 3: S104 YES), the second non-receiving terminal device 102b receives the second reception. As a terminal device, the data transfer instruction unit 205 transmits the transfer instruction to the second receiving terminal device 102b (FIG. 3: S105). Thereby, the transfer of the image data by the receiving terminal device is executed without interruption.

  In S103, the data instruction transmission unit 203 is transmitting the image data 403 and the reply instruction 600 to the second unreceived terminal apparatus 102b (FIG. 3: S103). When the reception completion notification is received from the first unreceived terminal device 102a, the data instruction transmission unit 203 prioritizes the reception completion notification and temporarily interrupts transmission to the second unreceived terminal device 102b. . The data reception determination unit 204 sets the first non-receiving terminal device 102a as the first receiving terminal device, and the data transfer instruction unit 205 transmits the transfer instruction to the first receiving terminal device 102a (see FIG. 3: S105). Thus, by giving priority to the transmission of the transfer instruction, the number of transmission sources of the image data 403 can be increased and the processing time can be shortened. In S102, while the unreceived terminal selection unit 202 selects an unreceived terminal device different from the first unreceived terminal device 102a (FIG. 3: S102), the first unreceived terminal The same applies to the case where the reception completion notification is received from the device 102a. When the data transfer instruction unit 205 completes the transmission of the transfer instruction, the data instruction transmission unit 203 resumes the temporarily interrupted processing, and again transmits the image data 403 to the second unreceived terminal device 102b. And the reply instruction 600 are transmitted.

  By the way, in S106, for example, when the second unreceived terminal apparatus 102b cannot receive the image data 403 for some reason, the following is performed. That is, the second non-receiving terminal device 102b does not return the reception completion notification, and the first receiving terminal device 102a does not return the transfer completion notification. Therefore, the data transfer determination unit 206 does not receive the transfer completion notification and the elapsed time exceeds the second threshold time.

  Then, the data transfer determining unit 206 determines not to receive the transfer completion notification from the first receiving terminal device 102a (FIG. 3: S106 NO), notifies the non-receiving terminal selecting unit 202 to that effect, and proceeds to S102. Transition. The non-receiving terminal selection unit 202 that has received the notification, as described above, as shown in FIG. 6B, an unreceiving terminal device (for example, a third non-receiving terminal device) different from the second non-receiving terminal device 102b. The receiving terminal device 102c) is selected (FIG. 3: S102), and the data instruction transmitting unit 203 transmits the image data 403 and the reply instruction 601 to the selected third non-receiving terminal device 102c. (FIG. 3: S103). That is, the image data 403 and the reply instruction 601 are smoothly transmitted to the non-receiving terminal device by changing from the non-receiving terminal device 102b to which the transfer completion notification is not returned to another new non-receiving terminal device 102c. It becomes possible.

  In S103, the data instruction transmission unit 203 is transmitting the image data 403 and the reply instruction 601 to the third unreceived terminal apparatus 102c (FIG. 3: S103). When the transfer completion notification is received from the first receiving terminal device 102a, the data instruction transmission unit 203 prioritizes the transfer completion notification and temporarily suspends transmission to the third non-receiving terminal device 102c. The data transfer determination unit 206 sets the second non-receiving terminal device 102b as the transfer destination as the second receiving terminal device, and the non-receiving terminal determination unit 207 has no other non-receiving terminal device among the terminal devices 102. Is determined (FIG. 3: S107).

  Here, when the third unreceived terminal device 102c is the last unreceived terminal device and corresponds to the second unreceived terminal device 102b, there is no other unreceived terminal device (FIG. 3). : S107 YES), the group transmission job is completed. On the other hand, when there is another unreceived terminal device (FIG. 3: S107 NO), the process proceeds to S102 again. In S102, while the non-receiving terminal selection unit 202 is selecting a non-receiving terminal device different from the second non-receiving terminal device 102b (FIG. 3: S102), the first receiving terminal device The same applies to the case where the transfer completion notification is received from 102a.

  As described above, the image processing apparatus 100 or the receiving terminal apparatus 102 can transmit the image data 403 to all the terminal apparatuses 102 by repeating the transmission of the image data 403.

  When all the terminal devices 102 receive the image data 403, in S107, the unreceived terminal determination unit 207 determines that there is no other unreceived terminal device (FIG. 3: S107 YES), and executes the group transmission job. Complete.

  Next, the operational effects of the present invention will be described. In the image processing system 1 according to the present invention, when the image processing apparatus 100 transmits image data to 30 terminal apparatuses 102, as shown in FIG. First, the image processing apparatus 100 transmits image data to the first unreceived terminal apparatus 102a (terminal 1). The first non-receiving terminal device 102a becomes the first receiving terminal device (first turn).

  Next, the image processing apparatus 100 transmits a transfer instruction to the first receiving terminal apparatus 102a, and the first receiving terminal apparatus 102a becomes the transmission source of the image data, and the second unreceiving terminal apparatus 102b (terminal Send image data to 2). Further, the image processing apparatus 100 serves as a transmission source of image data, and transmits the image data to the third unreceived terminal apparatus 102c (terminal 3). As a result, the second non-receiving terminal device 102b becomes the second receiving terminal device, and the third non-receiving terminal device 102c becomes the third receiving terminal device (second turn).

  Then, the image processing apparatus 100 transmits a transfer instruction to each of the first receiving terminal apparatus 102a, the second receiving terminal apparatus 102b, and the third receiving terminal apparatus 102c, and each receiving terminal apparatus 102a, 102b, 102c The image data is transmitted to each of the fourth unreceived terminal device 102d (terminal 4), the fifth unreceived terminal device 102e (terminal 5), and the sixth unreceived terminal device 102f (terminal 6) as the data transmission source. Send. Further, the image processing apparatus 100 serves as a transmission source of image data and transmits the image data to the seventh unreceived terminal apparatus 102g (terminal 7). As a result, the fourth non-receiving terminal device 102d, the fifth non-receiving terminal device 102e, the sixth non-receiving terminal device 102f, and the seventh non-receiving terminal device 102g become the receiving terminal devices (third turn).

  By repeating such processing, as shown in FIG. 8, in the fourth turn, seven receiving terminal devices 102 (terminal 1 to terminal 7) and one image processing device 100 become the transmission source of image data, In the fifth turn, fifteen receiving terminal devices 102 (terminal 1 to terminal 15) and one image processing device 100 become the transmission source of image data. Therefore, in the present invention, when the fifth turn is completed, the image data can be shared by the 30 terminal devices 102. Note that the upper part of the table indicating the transmission status for each turn shown in FIG. 8 indicates the transmission source, and the transmission destination is indicated in the table. Conventionally, since the image processing apparatus 100 alone is a transmission source of image data, it is necessary to transmit image data to each of the 30 terminal apparatuses 102, and it is necessary to transmit until the 30th turn. . In the present invention, it is possible to share image data with the number of turns of about 1/6.

  In the embodiment of the present invention, the image data is targeted for transmission. However, the present invention is not limited to this, and even normal data has the same effect. In the embodiment of the present invention, the image processing apparatus 100 is configured to include each unit, but a specific terminal device 102 or a specific management terminal device may be configured to include each unit. In the embodiment of the present invention, the present invention is applied to the image processing system 1 including the image processing apparatus 100. However, the present invention is not limited to this. Have

  In the embodiment of the present invention, the image processing apparatus 100 is configured to include each unit. However, a program that realizes each unit may be stored in a storage medium and the storage medium may be provided. In the configuration, the program is read by a specific device, and the device realizes the units. In that case, the program itself read from the recording medium exhibits the effects of the present invention. Furthermore, it is possible to provide a method for storing the steps executed by each means in a hard disk.

  As described above, the data transmission system and the data transmission method according to the present invention are useful for a data transmission system including a data transmission device such as an image processing device, and can quickly transmit one data to a plurality of users. It is effective as a simple data transmission system and data transmission method.

DESCRIPTION OF SYMBOLS 1 Image processing system 100 Image processing apparatus 101 Network 102 Terminal device 201 Job reception part 202 Unreceived terminal selection part 203 Data instruction transmission part 204 Data reception determination part 205 Data transfer instruction part 206 Data transfer determination part 207 Unreceived terminal determination part

Claims (5)

A data transmission system in which a data transmission device and a plurality of terminal devices are communicably connected,
When executing a job for transmitting specific data to the plurality of terminal devices, the data and the first unreceived terminal device are assigned to the first unreceived terminal device that has not yet received the data. A data instruction transmission unit that transmits a reply instruction to the effect that a reception completion notification is returned to the data transmission device when data is received;
A data reception determination unit that determines whether or not a reception completion notification has been received from the first unreceived terminal device;
When the reception completion notification is received, the first receiving terminal device corresponding to the first unreceiving terminal device receives the received data and the second unreceiving terminal device that has not yet received the data. A data transfer instruction unit that transmits a transfer instruction to the effect that a transfer completion notification is returned to the data transmission device when the second unreceived terminal device receives the data,
A data transfer determination unit for determining whether or not a transfer completion notification is received from the first receiving terminal device;
When the transfer completion notification is received, it is determined whether there is no other unreceived terminal device among the terminal devices, and if there is no other unreceived terminal device, the unreceived terminal that completes the job A determination unit;
A data transmission system comprising: The data transmission system according to claim 1, wherein the data transfer instruction unit transmits the transfer instruction to all of the receiving terminal devices. When the data instruction transmission unit receives the reception completion notification from the fourth unreceived terminal device while transmitting the data and the reply instruction to the third unreceived terminal device, Temporarily suspending transmission to the third unreceived terminal device,
The data transmission system according to claim 1 or 2, wherein the data transfer instruction unit transmits the transfer instruction to a fourth receiving terminal device corresponding to the fourth unreceived terminal device. The said data instruction | indication transmission part transmits the said data and the said reply instruction | indication to the said other non-receiving terminal device, when there exists the said other non-receiving terminal device. Data transmission system. A data transmission method for a data transmission system in which a data transmission device and a plurality of terminal devices are communicably connected,
When executing a job for transmitting specific data to the plurality of terminal devices, the data and the first unreceived terminal device are assigned to the first unreceived terminal device that has not yet received the data. A data instruction sending step for sending a reply instruction for sending a reception completion notification back to the data sending device when data is received;
A data reception determination step for determining whether or not a reception completion notification has been received from the first unreceived terminal device;
When the reception completion notification is received, the first receiving terminal device corresponding to the first unreceiving terminal device receives the received data and the second unreceiving terminal device that has not yet received the data. A data transfer instruction step for transmitting a transfer instruction for returning a transfer completion notification to the data transmitting apparatus when the second unreceived terminal apparatus receives the data, and
A data transfer determination step for determining whether or not a transfer completion notification is received from the first receiving terminal device;
When the transfer completion notification is received, it is determined whether there is no other unreceived terminal device among the terminal devices, and if there is no other unreceived terminal device, the unreceived terminal that completes the job A determination step;
A data transmission method comprising:

Images