JP4946892B2 - Communications system - Google Patents

Description

  The present invention relates to a communication system that automatically downloads data from a server device and converts a data file after the download in response to any failure of a network, a communication device, and a server device.

For example, a communication device having a conventional download function has a download time display function when a communication device that is a device for downloading a data file, and if the download has been performed over a predetermined time, the download is performed. Discontinuation is disclosed (for example, see Patent Document 1).
This communication apparatus has a start completion request time table. The communication unit refers to the start request time setting table, starts the communication unit at the set start time, accesses the set site, and starts downloading. The communication device has a display unit and displays the time required for the download. The communication device has a stop unit. When the operator gives an instruction to the stop unit, the communication unit is stopped and the download is stopped. .
JP 2003-091474 A

In a communication device having a conventional download function, when the download speed is reduced, the download being executed is stopped, another download is executed, and then the stopped download is executed halfway.
Therefore, in the conventional communication apparatus, when the reason for the decrease in the download speed is a problem in the temporary processing capability of the server apparatus, the download is successfully performed by reconnecting.
However, if the reason for the decrease in the download speed is a failure on the network, wait until the failure on the network is solved, or if the processing capacity decline due to overload of the communication device is a problem, The download was not successful unless the communication device's processing power was restored.
The present invention has been made to solve the above-described problems, and automatically downloads data from a server device in the event of a network failure, a communication device failure, or a server device failure. It is another object of the present invention to provide a communication system that can convert a data file after downloading.

A communication system according to the present invention includes a history table including a download time for downloading data of a server device,
A start completion request time table including a file conversion completion request time and a first flag indicating whether the file conversion completion request time is valid;
Prediction means for predicting the download completion prediction time based on the download time and the current time of the history table;
The present time is transmitted to the prediction means, and a notification that the download completion prediction time predicted by the prediction means is exceeded when the file conversion completion request time included in the start completion request time table is exceeded is transmitted. A first communication means;
A notification means for invalidating and rewriting the first flag in the start completion request time table when receiving that the predicted download completion time transmitted by the first communication means exceeds the file conversion completion request time; A first communication device comprising:
A download start request time and a second flag indicating whether or not the download start request time is valid, and the download completion prediction time transmitted by the first communication means includes the file conversion completion request time. A start request time table in which the second flag is effectively rewritten by the notification means when it is received,
The server device data is downloaded when the download start time matches the download start request time in the start request time table and the second flag is valid, and the first file name of the downloaded data after the download is completed A second communication means for transmitting
A second communication device having first conversion means for converting the format and character code of the data file of the first file name transmitted by the second communication means. .

  In the present invention, if the predicted download completion time exceeds the file conversion completion request time, a message indicating that the download conversion completion time is exceeded is transmitted, and the file conversion completion request time and the first file conversion completion request time indicating whether the file conversion completion request time is valid are transmitted. A first communication device that invalidates and rewrites the first flag of the start completion request time table including the flag of the download completion, and a second flag indicating whether or not the download start request time and the download start request time are valid And a start request time table in which the second flag is effectively rewritten when the predicted download completion time transmitted by the first communication means exceeds the file conversion completion request time, and the download start time starts. When the request time table matches the download start request time and the second flag is valid, the server device data is downloaded. The second communication means for transmitting the first file name of the downloaded data after loading and downloading, and the format and character code of the data file of the first file name transmitted by the second communication means are converted. And the second communication device having the first conversion means to automatically transmit data (from the server device to the network device, the communication device failure, and the server device failure). File) is successfully downloaded, and then file conversion processing can be executed.

Embodiment 1 FIG.
FIG. 1 is a configuration diagram of a communication system according to the present embodiment. In the figure, 1 is a server device, 10, 20 and 30 are networks, 100 is a communication device as a download device for downloading data from the server device 1, 101 is a communication unit as communication means, and 102 is conversion as conversion means. , 103 is a prediction unit as a prediction unit, 104 is a notification unit as a notification unit, 105 is a display unit as a display unit, 111 is a history table, and 112 is a start completion request time table. Similarly to the communication apparatus 100, 200 is a communication apparatus as a download apparatus that downloads data from the server apparatus 1, 201 is a communication section as communication means, 202 is a conversion section as conversion means, and 213 is a start request. It is a time table.

FIG. 2 is a diagram showing an example of the history table 111. The history table 111 records the file size, download time, and conversion time required for file conversion of data downloaded in the past.
Here, file conversion is defined as file conversion to perform conversion on a data file downloaded from a server and create a new file. For example, EDI (Electronic Data Interchange) indicates that conversion between an input data file format and an output data format and character code conversion are performed.

  FIG. 3 is a diagram illustrating an example of the start completion request time table 112. The download start request time, the file conversion completion request time, and the download start request time and the file conversion completion request time are valid in the communication device 100. Or a flag indicating that it is invalid. This flag is displayed to indicate ON when the download start request time and the file conversion completion request time are valid, and OFF when they are invalid.

  FIG. 4 is a diagram illustrating an example of the start request time table 213, which has a download start request time and a flag indicating that the download start request time is valid or invalid in the communication device 200. This flag is displayed to indicate ON when the download start request time is valid, and OFF when it is invalid.

Next, the operation will be described.
FIG. 5 is a flowchart showing an operation procedure of the communication unit 101.
The communication unit 101 included in the communication apparatus 100 searches the start completion request time table 112, and completes file conversion for a record whose current time matches the value of the download start request time column and whose flag column value is ON. The request time and data No are acquired, and the acquired file conversion completion request time and data No are stored in a memory unit (not shown) in the communication device 100 (step S1).
The communication unit 101 sends the current time to the prediction unit 103 before starting the download, receives the download completion prediction time predicted based on the current time from the prediction unit 103 (step S2), and the download completion prediction time is It is determined whether or not the file conversion completion request time stored in step S1 is exceeded (step S3).

When the predicted download completion time exceeds the file conversion completion request time stored in step S1, the communication unit 101 notifies the notification unit 104 to that effect (step S4).
If the predicted download completion time does not exceed the file conversion completion request time stored in step S1, the download is started (step S5).

After the download is completed, the communication unit 101 adds a new record to the history table 111, searches the data No column on the history table 111, and sets the value obtained by adding 1 to the maximum data No to the data No. of the newly added record. The column value is set (step S6).
Thereafter, the communication unit 101 records the size of the downloaded file and the time required for the download as the file size column and the download time column value of the newly added record in the history table (step S7).

Next, the communication unit 101 sends the current time and file size to the prediction unit 103, receives the file conversion completion prediction time generated based on the current time and file size from the prediction unit 103 (step S8), It is determined whether or not the predicted conversion completion time exceeds the file conversion completion request time (step S9).
When the predicted file conversion completion time exceeds the file conversion completion request time stored in step S1, the communication unit 101 notifies the notification unit 104 of the fact and the data No. stored in step S1 (step S10). ).

When the predicted file conversion completion time does not exceed the file conversion completion request time stored in step S1, the communication unit 101 passes the file name of the data to be downloaded to the conversion unit 102 (step S11).
Subsequently, after the conversion is completed, the communication unit 101 needs to convert the data of the file name of the data to be downloaded into a character code by the conversion unit 102 into the value of the conversion time string of the record newly added to the history table 111. The converted conversion time is set (step S12).
In addition, after step S4, step S10, and step S12 are completed, it returns to step S1 and a process is advanced again.

FIG. 6 is a flowchart showing an operation procedure of the conversion unit 102.
The conversion unit 102 is activated by the communication unit 101, receives the file name transmitted by the communication unit 101 in step S11 of FIG. 5, and performs file conversion on the file having this file name. For example, the character code conversion of the downloaded data (file) is performed (step S21), and after the conversion is completed, the time required for the conversion is sent to the communication unit 101 (step S22).

FIG. 7 is a flowchart showing an operation procedure of the prediction unit 103.
The prediction unit 103 is activated by the communication unit 101 and determines whether the communication unit 101 has received only the current time or the current time and file size (step S31).
When only the current time is received, the maximum download time in all records is searched by referring to the history table 111, and the obtained value is added to the received current time and returned as the predicted download completion time (step S32).
Alternatively, when the prediction unit 103 receives the current time and the file size, the prediction unit 103 refers to the history table 111 and searches for the conversion time of the record closest to the received file size in all the records. The file conversion completion predicted time is predicted from the time added to the current time at which the value is received, and the file conversion completion predicted time is returned to the communication unit 101 (step S33).

FIG. 8 is a flowchart showing an operation procedure of the notification unit 104.
The notification unit 104 is activated by the communication unit 101, and determines whether or not it has received from the communication unit 101 that the predicted download completion time exceeds the file conversion completion request time (step S41).
When the notification that the download completion prediction time exceeds the file conversion completion request time is received, the notification unit 104 rewrites all the flags on the start request time table 213 of the communication device 200 to ON via the network 30 (step S42). Further, the notification unit 104 rewrites all the flags on the start completion request time table 112 of the communication device 100 to OFF (step S43).

  On the other hand, when the notification unit 104 receives from the communication unit 101 that the predicted file conversion completion time exceeds the file conversion completion request time and the data number from the communication unit 101 in step S41, the notification unit 104 starts the communication device 200 via the network 30. The data No column on the request time table 213 is searched, and other than the flag of the matching record is rewritten to ON (step S44). Further, the notification unit 104 searches the data No column on the start request time table 112, and rewrites the flags other than the matching record to OFF (step S45).

The notification unit 104 sends a message indicating that the download completion prediction time received in step S41 exceeds the file conversion completion request time to the display unit 105 after the process of step S43 or step S45 is completed (step S46).
The display unit 105 displays the message passed from the notification unit 104.

FIG. 9 is a flowchart showing an operation procedure of the communication unit 201.
The communication unit 201 provided in the communication device 200 monitors the download start request time sequence and the flag sequence in the start request time table 213, and there is a record that matches the current time, and there is a record in which the flag is ON. It is determined whether or not to perform (step S51).
If there is a corresponding record, the communication unit 201 starts downloading (step S52), and passes the file name to the conversion unit 202 after the download is completed (step S53).
Note that the communication unit 201 starts processing again from the beginning after the end of step S53 or when there is no corresponding record in step S51.
When the file name is passed by the communication unit 201 in step S53 of FIG. 9, the conversion unit 202 converts the character code of the file having the passed file name.

Next, the contents described in the history table 111 shown in FIG. 2, the start completion request time table 112 shown in FIG. 3, and the start request time table 213 shown in FIG. 4, and FIG. 5, FIG. 7, FIG. An operation example of the communication system will be described with reference to the flowchart of FIG.
First, when the current time is 9:00, the communication unit 101 searches the start completion request time table 112 in FIG. 3, the download start time column value is 9:00, and the flag column value is ON. For the record, the file conversion completion request time 9:05 and the data No. 1 are stored (see step S1 in FIG. 5).

The communication unit 101 sends the current time 9:00 to the prediction unit 103 before starting the download. The prediction unit 103 determines whether only the current time or the current time and file size have been received from the communication unit 101 (see step S31 in FIG. 7).
Since the prediction unit 103 has received only the current time 9:00, the prediction unit 103 refers to the history table 111 in FIG. 2 and searches for the maximum download time in all records, and receives the obtained value 360 [seconds] 9: In addition to 00, it is returned to the communication unit 101 as a download completion prediction time 9:06 (see step S32 in FIG. 7).

The communication unit 101 receives the download completion prediction time 9:06 (see step S2 in FIG. 5), and determines whether or not the download completion prediction time 9:06 exceeds the stored file conversion completion request time 9:05. Determination is made (see step S3 in FIG. 5).
Subsequently, since the estimated download completion time 9:06 exceeds the stored file conversion completion request time 9:05, the communication unit 101 notifies the notification unit 104 of that (see step S4 in FIG. 5). ).

The notification unit 104 is activated by the communication unit 101 and determines whether or not it has been received from the communication unit 101 that the predicted download completion time exceeds the file conversion completion request time (see step S41 in FIG. 8).
Since the notification unit 104 has received that the download completion prediction time exceeds the file conversion completion request time, all the flags on the start request time table 213 of the communication device 200 are rewritten to ON via the network 30 (see step S42 in FIG. 8). In addition, all the flags on the start completion request time table 112 of the communication device 100 are rewritten to OFF (see step S43 in FIG. 8).

Further, since the notification unit 104 has received that the predicted download completion time exceeds the file conversion completion request time, the notification unit 104 sends a message indicating that the predicted download completion time exceeds the file conversion completion request time to the display unit 105 (FIG. 8). (See step S46).
The display unit 105 displays the message passed from the notification unit 104, and then the communication unit 101 returns to step S1 in FIG.

Next, the communication unit 201 of the communication apparatus 200 monitors the download start request time string and the flag string in the start request time table 213 of the communication apparatus 200, and there is a record that matches the current time, and the flag is ON. It is determined whether or not a certain record exists (see step S51 in FIG. 9).
Here, in the start request time table 213 of FIG. 4, as described above with reference to step S42 of FIG. 8, all the flags on the start request time table 213 of the communication device 200 are turned ON by the notification unit 104. Therefore, the communication unit 201 starts downloading since the record with the data No. 2 corresponds to 9:05 after the start request time table 213 is rewritten (FIG. 9). After the download is completed, the file name is transferred to the conversion unit 202 (see step S53 in FIG. 9).

The conversion unit 202 converts the character code of the file having the passed file name.
The communication unit 201 returns to step S52 in FIG. 9, and then, when the date and time has passed and the time becomes 9:00 again, the record with the data No. 1 is applicable, so download starts (see FIG. 9). 9 step S52).

Next, the contents described in the history table 111 shown in FIG. 2, the start completion request time table 113 shown in FIG. 10, and the start request time table 214 shown in FIG. 11 and FIG. 5, FIG. 7, FIG. Another operation example of the communication system will be described with reference to the flowchart of FIG.
First, when the current time is 9:00, the communication unit 101 searches the start completion request time table 113, and records with a download start time column value of 9:00 and a flag column value of ON. Is stored as 9:07 as the file conversion completion request time and 1 as the data number (see step S1 in FIG. 5).

The communication unit 101 sends the current time 9:00 to the prediction unit 103 before starting the download. The prediction unit 103 determines whether only the current time or the current time and file size have been received from the communication unit 101 (see step S31 in FIG. 7).
Since the prediction unit 103 has received only the current time 9:00, the prediction unit 103 refers to the history table 111 in FIG. 2 and searches for the maximum download time in all records, and receives the obtained value 360 [seconds] 9: In addition to 00, it is returned to the communication unit 101 as a download completion prediction time 9:06 (see step S32 in FIG. 7).

The communication unit 101 receives the predicted download completion time 9:06 (see step S2 in FIG. 5), and determines whether the predicted download completion time 9:06 exceeds the stored file conversion completion request time 9:07. Determination is made (see step S3 in FIG. 5).
Subsequently, the communication unit 101 starts downloading because the predicted download completion time 9:06 does not exceed the file conversion completion request time 9:07 stored in the start completion request time table 113 (step in FIG. 5). (See S5).
The communication unit 101 adds a new record to the history table 111 after the download is completed. The data No column in the history table is searched, and the value 5 obtained by adding 1 to the maximum data No 4 is set to the value of the data No column of the newly added record (see step S6 in FIG. 5).

It is assumed that the file size to be downloaded is 90 [MByte] and the download time is 360 [seconds].
The communication unit 101 records the downloaded file size 90 [Mbyte] and the download time 360 [seconds] as the values of the file size column and download time column of the newly added record in the history table (FIG. 5 (see step S7).
Since the download took 360 [seconds], the current time is 9:06.
The communication unit 101 sends the current time 9:06 and the file size 90 [MByte] to the prediction unit 103.

The prediction unit 103 is activated by the communication unit 101 and determines whether only the current time or the current time and file size have been received from the communication unit 101 (see step S31 in FIG. 7).
Since the prediction unit 103 has received the current time and the file size, the prediction unit 103 refers to the history table 111, searches for the conversion time of the record closest to the received file size 90 [Mbyte] in all records, and obtains the value 240 [ [Second] is returned to the communication unit 101 as a predicted file conversion completion time 9:10 in addition to the received time 9:06 (see step S33 in FIG. 7).

The communication unit 101 receives the predicted file conversion completion time 9:10 (see step S8 in FIG. 5), and determines whether or not the predicted file conversion completion time 9:10 exceeds the file conversion completion request time (FIG. 5). (See step S9).
Subsequently, since the file conversion completion predicted time 9:10 exceeds the file conversion completion request time 9:07, the communication unit 101 notifies the notification unit 104 of the stored data No. 1 (FIG. 5). (See step S10).

The notification unit 104 determines whether or not it has received that the predicted download completion time exceeds the file conversion completion request time (see step S41 in FIG. 8).
Since the notification unit 104 receives the data No1 indicating that the predicted file conversion completion time exceeds the file conversion completion request time, the notification unit 104 searches the data No column on the start request time table 214 of the communication device 200 through the network 30 and matches. The data other than the flag of the record is rewritten to ON (see step S44 in FIG. 8), and the data No column on the start completion request time table 113 of the communication apparatus 100 is searched, and other than the flag of the matching record is rewritten to OFF (FIG. 8 (see step S45).

Subsequently, since the notification unit 104 receives that the predicted download completion time exceeds the file conversion completion request time, the notification unit 104 sends a message indicating that the download completion predicted time exceeds the file conversion completion request time to the display unit 105 (FIG. 8). Step S46).
The display unit 105 displays the message passed from the notification unit 104, and then the communication unit 101 returns to step S1 in FIG.

Next, the communication unit 201 of the communication apparatus 200 monitors the download start request time string and the flag string in the start request time table 214 of the communication apparatus 200, and there is a record that matches the current time, and the flag is ON. It is determined whether or not a certain record exists (see step S51 in FIG. 9).
The communication unit 201 starts the download when the date and time has elapsed after the start request time table 214 has been rewritten and the record number is 2 again when the time becomes 9:05 (FIG. 9). After the download is completed, the file name is transferred to the conversion unit 202 (see step S53 in FIG. 9).
The conversion unit 202 converts the character code of the file having the passed file name.
Thereafter, the communication unit 201 returns to step S51, and a new process is performed.
Return to.

As described above, according to the present embodiment, data (file) is automatically downloaded from the server device automatically in response to any failure of the network, the communication device, and the server device, Thereafter, a file conversion process can be executed.
Further, when it is predicted that the download will take longer than the set time due to a failure of the server device, the operator can be notified to prompt the orderer to restore the site.
Furthermore, when it is predicted that the download time will exceed the set time due to a network failure, the data file being downloaded and the subsequent schedule may be downloaded from another communication device connected to a different network. it can.
Furthermore, when it is predicted that the file conversion time will exceed the set time due to the failure of the communication device, the schedule after the data file being downloaded is from another communication device connected to a different network. Can be downloaded.

Further, according to the present embodiment, it is possible to automatically restore the communication system without any manual operation for any failure of the network, the communication device, and the server device. The recovery time can be shortened.
Furthermore, it is possible to eliminate errors in the operation procedure by making it necessary to design an appropriate operation procedure individually for these failures, and to make the procedure for switching the download device and line automatically. Can be reduced.

1 is a configuration diagram of a communication system according to a first embodiment. FIG. 3 shows a history table 111 in the first embodiment. The figure which showed the start completion request | requirement time table 112 in Embodiment 1. FIG. The figure which showed the start request | requirement time table 213 in Embodiment 1. FIG. 3 is a flowchart showing an operation procedure of the communication unit 101 according to the first embodiment. 5 is a flowchart showing an operation procedure of a conversion unit in the first embodiment. 5 is a flowchart illustrating an operation procedure of a prediction unit 103 according to the first embodiment. 5 is a flowchart illustrating an operation procedure of a notification unit 104 according to the first embodiment. 5 is a flowchart showing an operation procedure of the communication unit 201 according to the first embodiment. The figure which showed the start completion request | requirement time table 113 in Embodiment 1. FIG. The figure which showed the start request | requirement time table 214 in Embodiment 1. FIG.

Explanation of symbols

  1 server device 10, 20, 30 network, 101 communication unit, 102 conversion unit, 103 prediction unit, 104 notification unit, 105 display unit, 111 history table, 112, 113 start completion request time table, 201 communication unit, 202 conversion Unit, 213, 214 start request time table 213, 901 communication unit, 902 display unit, 903 stop unit, 911 download start time setting table.

Claims (7)

A history table containing download times for downloading server device data;
A start completion request time table including a file conversion completion request time and a first flag indicating whether the file conversion completion request time is valid;
Prediction means for predicting the download completion prediction time based on the download time and the current time of the history table;
The present time is transmitted to the prediction means, and a notification that the download completion prediction time predicted by the prediction means is exceeded when the file conversion completion request time included in the start completion request time table is exceeded is transmitted. A first communication means;
A notification means for invalidating and rewriting the first flag in the start completion request time table when receiving that the predicted download completion time transmitted by the first communication means exceeds the file conversion completion request time; A first communication device comprising:
A download start request time and a second flag indicating whether or not the download start request time is valid, and the download completion prediction time transmitted by the first communication means includes the file conversion completion request time. A start request time table in which the second flag is effectively rewritten by the notification means when it is received,
The server device data is downloaded when the download start time matches the download start request time in the start request time table and the second flag is valid, and the first file name of the downloaded data after the download is completed A second communication means for transmitting
A second communication device having first conversion means for converting the format and character code of the data file of the first file name transmitted by the second communication means. A communication system. 2. The communication system according to claim 1, wherein the first communication unit downloads data of the server device when the predicted download completion time does not exceed the file conversion completion request time. 3. 3. The communication system according to claim 2, wherein the first communication unit newly records a time required for the download in the history table when the data of the server device is downloaded. 4. The notifying means transmits that the predicted download completion time exceeds the file conversion completion request time,
2. The communication system according to claim 1, wherein the first communication device includes display means for displaying that the download completion prediction time transmitted by the notification means exceeds the file conversion completion request time. . The history table includes a file size of data downloaded from the server device,
The start completion request time table includes a data number corresponding to the file conversion completion request time and the first flag,
The prediction means predicts a file conversion completion predicted time based on the file size and the current time of the history table,
The first communication unit transmits the file size and the current time to the prediction unit, and the file conversion completion predicted time predicted by the prediction unit is included in the start completion request time table. If the file conversion completion request time is exceeded, send the data number and the data number,
When the notification means receives that the file conversion completion predicted time transmitted by the first communication means exceeds the file conversion completion request time and the data number, the notifying means in the start completion request time table Rewrite the flag in invalid,
The start request time table stores the second corresponding to the data number by the notifying means when receiving that the predicted file conversion completion time transmitted by the first communication means exceeds the file conversion completion request time. The communication system according to claim 1, wherein the flag is effectively rewritten. The notifying means transmits that the predicted file conversion completion time exceeds the file conversion completion request time,
6. The communication system according to claim 5, wherein the first communication device comprises display means for displaying that the predicted file conversion completion time exceeds the file conversion completion request time. The first communication device converts the format and character code of the downloaded data file based on the file name transmitted by the first communication means, and sets the conversion time required for the conversion to the first communication means. Comprising second conversion means for transmitting to
The first communication means transmits a file name of data to be downloaded to the second conversion means when the predicted file conversion completion time does not exceed the file conversion completion request time, and the second conversion means Record the conversion time sent from the history table,
2. The communication system according to claim 1, wherein the prediction unit predicts a file conversion completion prediction time obtained by adding the current time to the conversion time recorded in the history table.

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