JPH08227302A - Data processing device - Google Patents

Abstract

(57) [Summary] [Structure] The integrated data calculation processing unit 21 is a computer (A) 1
1 (Computer (A) 1 from the operating status of 1 and Calculator (B) 12
When 1 is determined to be the master, the latest integrated data is calculated from the process data from the process data input device 10 and the previous integrated data recorded in the auxiliary storage device 13 and updated and recorded in the auxiliary storage device 13. At the same time, the data is updated and recorded, and then updated and recorded in the auxiliary storage device 14, and the integrated data calculation processing unit 22 causes the computer (A) 11 and the computer (B) 12 to
When the computer (A) 11 is determined to be the master from the operating conditions of the above, the latest integrated data is calculated from the process data from the process data input device 10 and the previous integrated data recorded in the auxiliary storage device 14. Auxiliary storage device 1
4 is updated and recorded, and after the update is recorded, the update is recorded in the auxiliary storage device 13. [Effect] Data recovery work from computer failure is unnecessary.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data processing device for processing plant data by a computer having a redundant configuration.

[0002]

2. Description of the Related Art For example, in a large-scale plant such as a nuclear power plant, a process computer has been used for monitoring and controlling process information, and the amount of information handled by it and its role in monitoring and controlling the plant. Is increasing year by year.

As a main function of such a process computer, there is a function of inputting plant information at any time, an integration calculation based on it, and a function of recording it in time series.

These functions are required to always operate from the viewpoint of plant maintenance and the like, and in order to meet the demand, how to increase the operation rate of the process computer has been a major issue. As a method of increasing the operating rate, conventionally, a means of adopting a redundant configuration using two computers that perform the same operation has been used.

FIG. 19 is a block diagram showing a data processing device for performing conventional calculation processing.

This data processing apparatus has a redundant structure in which an auxiliary storage device is connected to a computer, and the process data input apparatus 10 inputs plant process information.
And a computer 1 having calculation processing means 1a for performing calculation processing
And an auxiliary storage device (A) for recording the calculation result of the computer 1
13 and calculation processing means 2a for performing the same processing as that of the computer 1.
And a secondary storage device (B) 14 for recording the calculation result of the computer 2.

In this data processing device, the process information of the plant is input from the process data input device 10 by the calculation processing means 1a of the computer 1, and the calculation process is performed in accordance with the built-in program. Subsequently, the calculation processing means 1a outputs the calculation processing result to the auxiliary storage device (A) 13 and updates it.

On the other hand, the process information of the plant is transferred to the process data input device 1 by the calculation processing means 2a of the computer 2.
Calculation processing is performed in accordance with a built-in program input from 0, and the calculation processing result is output to the auxiliary storage device (B) 14 and updated. In this way, the same operation as that of the computer 1 is performed on the computer 2 side, and the computers having the redundant configuration individually execute the calculation processes asynchronously with each other, and update the calculation results in the respective auxiliary storage devices.

The auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 each have a data update area as a first area.
It is duplicated by the buffer and the second buffer. For example, the calculation result is updated to the first buffer at the calculation timing t0, and the calculation result is updated to the second buffer at the next calculation timing t1. With this, even if the computer fails during updating, the calculation result is not lost.

For example, the auxiliary storage device (A) shown in FIG.
The auxiliary storage device 13 and the auxiliary storage device (B) 14 were the first buffer and the second buffer, respectively, as shown in FIG.
First, at the calculation timing of time t1, the process data from the process data input device 10 and the previous accumulated data x recorded in the second buffer (right side in the drawing) are recorded.
(0) is taken out and calculated by the computer (R1). The integrated data x (1) as the calculation result is updated and recorded in the first buffer (left side in the drawing) (R2).

At the next calculation timing of time t2,
This time, the process data from the process data input device 10 and the previous accumulated data x (1) in the first buffer are fetched and calculated, and the accumulated data x (2) is updated and recorded in the second buffer (R3. ). Similarly, at the next calculation timing time t3, the process data of the process data input device 10 and the integrated data x (2) of the second buffer are taken out, and the integrated data x (3) which is the calculation result becomes the first
The data is updated and recorded in the buffer (R4).

As a result, when the integrated data is taken out by the computer or is updated and recorded, even if the integrated data in the buffer is lost due to a malfunction of the computer, the integration process using the previous integrated data is performed. it can. For example, the integrated data x that is the calculation result at the calculation timing time t2
When (2) is updated and recorded in the second buffer and the computer fails and the accumulated data x (2) of the second buffer is lost, the accumulated data x (1) of the first buffer is stored at the next calculation timing time t3. Use to continue the calculation.

When either one of the computers becomes abnormal, the data recorded in the auxiliary storage device during the abnormal period is considered to be incorrect. In this case, the data in the normal auxiliary storage device is copied to the abnormal auxiliary storage device to correct the incorrect data and restore the normal condition. Humans intervene in such copying work to perform restoration work.

FIG. 21 is a block diagram showing a conventional data processing device having a recorder function.

This data processing device has a process data input device 10, an auxiliary storage device (A) 13 and an auxiliary storage device (B) 14 similar to the data processing device shown in FIG. 19, and collects in process data. Computer 1 having record item data 1c indicating the type of data to be recorded and record data collecting means 1b collecting process data at regular intervals
And a computer 2 having the same configuration as the computer 1.

In this data processing apparatus, the record data collecting means 1b of the computer 1 collects the process data of the plant corresponding to the record item data 1c from the process data input apparatus 10 at regular intervals and collects the process time. Is added and recorded data is transferred to the auxiliary storage device (A) 13 and recorded.

In the computer 2, the process data of the plant is collected from the process data input device 10 by the record data collecting means 2b, and the process data of the item corresponding to the record item data 2c is collected at a constant cycle. Is transferred to and recorded in the auxiliary storage device (B) 14.

In this way, the computer 2 side also performs the same processing as the computer 1, and the record data is transferred and recorded in the auxiliary storage device (B) 14.

As described above, the computer 1 and the computer 2 individually collect and record the record data asynchronously with each other, and record the record data in each auxiliary storage device. If one of the computers becomes abnormal, the data during the abnormal period is not recorded, so at the time of normal recovery, read the recording time of the data recorded immediately before the abnormality occurred in the auxiliary storage device and read that time. The data in the normal side auxiliary storage device during the recovery from the normal state is copied to the abnormal side auxiliary storage device. In this work, the illegal data is corrected so that the times of the recorded data do not overlap, and the data is restored to normal.

[0020]

However, as shown in FIG.
The conventional data processing device described with reference to FIG. 21 has the following problems.

First, in the conventional data processing apparatus shown in FIG. 19, the redundant computer 1 and computer 2 perform the same calculation process and record the results. It is possible that the same kind of calculation processing data does not match between the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 due to a deviation or the like.

For example, the burnup of a nuclear reactor is obtained by calculating integrated data. In the calculation of this integrated data, the previously calculated burnup is used in the next calculation to newly obtain the burnup. In such a case, the computer 1 and the computer 2 separately calculate and update the values obtained by separately calculating the computer 1 and the computer 2. For this purpose, first computer 1 and computer 2
Therefore, even if the integrated data match, the integrated data may be sequentially shifted, and as a result, the recorded contents may be significantly different between the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14.

Secondly, when recovering from the failure of either the computer 1 or the computer 2 to the normal state, the data transfer work is done manually, and there is a possibility that an error may occur in the normal return work. Further, in a large-scale plant, the amount of data to be handled is large, which requires a great deal of labor and time.

Third, since the data update areas of the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 are double buffers, a recording capacity twice as large as the update data is required.

In the data processing apparatus shown in FIG. 21, when one of the computers 1 and 2 fails and is restored to normal, the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 are also provided.
There is a problem in that data transfer work is being carried out, and there is a risk that a data transfer error may occur, and that it requires a great deal of labor and time.

Therefore, according to the present invention, the recording data between the redundant auxiliary storage devices are unified, and the computer failure and
An object of the present invention is to provide a data processing device that can easily and reliably perform data recovery work such as restoration without human intervention.

[0027]

According to the invention of claim 1, a process data input device for inputting process data from a plant, a first computer for calculating process data input by the process data input device, and a first computer. In a dual processing data processing device having two computers and a first auxiliary storage device and a second auxiliary storage device for recording the calculation results of the first computer and the second computer, the first computer is the master. When it is determined that the latest integrated data is calculated from the process data from the process data input device and the previous integrated data recorded in the first auxiliary storage device, the latest integrated data is updated and recorded in the first auxiliary storage device. Along with the first update recording, the first auxiliary update recording is performed in the second auxiliary storage device.
While the integrated data calculation processing unit of is provided in the first computer,
When it is determined that the second computer is the master, the latest integrated data is calculated from the process data from the process data input device and the previous integrated data recorded in the second auxiliary storage device to calculate the first integrated data. The second computer is provided with a second integrated data calculation processing unit for performing update recording in the auxiliary storage device and updating and recording in the second auxiliary storage device.

According to a second aspect of the present invention, in the data processing apparatus according to the first aspect, each of the first and second integrated data calculation processing units sets a master status by using one of them as a master computer. Master / slave determination means for setting the slave status by using the other one as a slave computer, the process data input from the process data input device, and the previous integration recorded in the first auxiliary storage device or the second auxiliary storage device. The latest integrated data is calculated from the data, and the first auxiliary storage device or the second auxiliary storage device corresponding to the computer in the master status is updated and recorded with the latest integrated data only when its own computer is in the master status, Furthermore, integrated data calculation that outputs the latest integrated data and an integrated data update completion signal indicating the completion of update recording Update timing processing for inputting the latest integrated data and the integrated data update completion signal to update and record the first auxiliary storage device or the second auxiliary storage device corresponding to the slave status computer with the latest integrated data. And means are provided.

According to a third aspect of the present invention, a process data input device for inputting process data from a plant, a first computer and a second computer for calculating and processing the process data input by the process data input device, and these first and second computers are provided. In a data processing device having a redundant configuration having a first auxiliary storage device and a second auxiliary storage device for recording calculation results of a first computer and a second computer, process data input from a process data input device and a first data storage device While the first computer and the second computer are respectively provided with integrated data calculating means for calculating and outputting the latest integrated data from the previous integrated data input from the auxiliary storage device or the second auxiliary storage device, When it is determined which of the second computer and the second computer is the master and the first computer is the master,
When the latest integrated data is input from the integrated data calculating means of the first computer, the latest integrated data is recorded in the first auxiliary storage device, and when the second computer determines that it is the master, When the latest integrated data is input from the integrated data calculating means of the computer, either the first data server that updates and records the latest integrated data in the first auxiliary storage device, or the first computer or the second computer Determine if it is a master, first
When the latest integrated data is input from the integrated data calculating means of the first computer while the computer is determined to be the master, the latest integrated data is recorded in the second auxiliary storage device,
When the latest integrated data is input from the integrated data calculating means of the second computer while the second computer determines that it is the master, the latest integrated data is updated and recorded in the second auxiliary storage device. And a data server of.

According to a fourth aspect of the present invention, in the data processing apparatus according to the third aspect, the first data server determines whether or not it is a master, and sets one of them as a master computer to set a master status, When the other server is set as a slave computer and the slave status is set by the first server-side master-slave determination means, and the first server-side master-slave determination means sets the first computer as the master status. When the latest integrated data is input from the integrated data calculating means of the first computer, the latest integrated data is updated and recorded in the first auxiliary storage device, and the second server side master storage device determines the second computer. If the latest integrated data is input from the integrated data calculation means of the second computer while the master status is set, And integrated data calculation processing means for storing the accumulated data to the first auxiliary storage device, a self-de - Tasa -
A first data recovery means for requesting the second data server to transfer the latest data from the second auxiliary storage device and storing it in the first auxiliary storage device when the memory is recovered from the failure. , The second data server determines whether or not it is a master, sets one of the master statuses as a master computer, and sets the other of the other slave statuses as a slave computer. Second server side When the latest integrated data is input from the integrated data calculation means of the first computer while the first computer is set as the master status by the master / slave determination means and the second server side master / slave determination means, The latest integrated data is updated and recorded in the second auxiliary storage device, and the second server side master / slave determination means sets the second computer to the master status. If the latest integrated data is input from the integrated data calculating means of the second computer during the setting, the integrated data calculation processing means for storing the latest integrated data in the second auxiliary storage device and its own data Second data recovery means for requesting the first data server to transfer the latest data from the first auxiliary storage device and storing it in the second auxiliary storage device when the server is recovered from the failure. Is provided.

According to a fifth aspect of the present invention, there are provided a process data input device for inputting process data from a plant, and a first computer and a second computer for collecting and processing the process data input by the process data input device as record data. In a data processing device having a redundant configuration, which has a first auxiliary storage device and a second auxiliary storage device for recording data recorded by the first computer and the second computer,
When the first computer is determined to be the master, the first record data storage unit for recording the record data by the collection processing of the first computer into the first auxiliary storage device and the second auxiliary storage device is provided as the first storage device. Second recording means for recording the record data by the collecting process of the second computer in the first auxiliary storage device and the second auxiliary storage device when the second computer is determined to be the master. The data storage unit is provided in the second computer.

According to a sixth aspect of the present invention, in the data processing apparatus according to the fifth aspect, each of the first and second recording data storage units sets a master status using one of them as a master computer. Master slave determination means for setting slave status using the other as a slave computer, and process data from the process data input device is collected to create record data. When it is set, a recording data storage means for adding a master status index to record the recording data in the first auxiliary storage device and the second auxiliary storage device, and the master-slave determination means make the computer of its own slave. The status is set and the data is stored in the first auxiliary storage device and the second auxiliary storage device. When the record data of the timing master status is not recorded, the record data is input from the record data saving means, and the record data is recorded by adding the slave status index to the first auxiliary storage device and the second auxiliary storage device. A recording data correction means is provided.

According to a seventh aspect of the present invention, there are provided a process data input device for inputting process data from a plant, and a first computer and a second computer for collecting and processing the process data input by the process data input device as record data. In a data processing device having a redundant configuration, which has a first auxiliary storage device and a second auxiliary storage device for recording data recorded by the first computer and the second computer,
The first computer and the second computer are respectively provided with recording data collecting means for collecting and processing the process data input from the process data input device to create recording data.
When record data is input from the record data collecting means of the first computer while the first computer determines that it is the master, the record data is recorded in the first auxiliary storage device, and the second computer becomes the master. When the record data is input from the record data collecting means of the second computer during the determination, the first data server that records the record data in the first auxiliary storage device and the first computer serves as the master. When making a decision,
When the record data is input from the record data collecting means of the first computer, the record data is recorded in the second auxiliary storage device,
When the record data is input from the record data collecting means of the second computer while the second computer determines that it is the master, the record data is recorded in the second auxiliary storage device.
And a data server of.

According to an eighth aspect of the present invention, in the data processing apparatus according to the seventh aspect, the first data server determines whether or not it is a master, and sets one of them as a master computer to set a master status. When the other server is set as a slave computer and the slave status is set by the first server-side master-slave determination means, and the first server-side master-slave determination means sets the first computer as the master status. When the record data is input from the record data collecting unit of the first computer, the record data is stored in the first auxiliary storage device, and the second server is set as the master status by the first server-side master / slave determining unit. When the record data is input from the record data collecting means of the second computer during the operation, the record data is stored in the first auxiliary storage. A first recording data processing means for storing the location, its de - Tasa - when server is restored from the failure,
First data recovery means for requesting the second data server to transfer the record data from the second auxiliary storage device and storing it in the first auxiliary storage device; When the computer of No. 1 is set to the slave status and the record data of the master status at the data collection timing is not recorded in the first auxiliary storage device and the second auxiliary storage device, the recording data from the first recording data processing means. And a second server side record data correction means for recording record data by adding a slave status index to the first auxiliary storage device and the second auxiliary storage device. Determines whether or not it is the master, sets one of the master computers as the master status, and sets the other as the slave computer, the slave station. The second server-side master / slave determination means for setting the computer and the record data collection of the first computer when the first computer is set as the master status by the second server-side master / slave determination means. When the record data is input from the means, the record data is
If the record data is input from the record data collecting means of the second computer while the second server side master / slave determination means sets the second computer as the master status, Second recording data processing means for recording data in the second auxiliary storage device;
When the data server of its own recovers from the failure, the second data recovery requesting the first data server to transfer the record data from the first auxiliary storage device and recording the data in the second auxiliary storage device. Means and the second server side master / slave determination means sets its own computer to slave status,
In addition, when the record data of the master status at the data collection timing is not recorded in the first auxiliary storage device and the second auxiliary storage device, the record data is input from the second record data processing means and the first auxiliary storage is performed. A device and a second server side recording data correction means for recording recording data by adding a slave status index to the second auxiliary storage device are provided.

[0035]

According to the data processor of claim 1, when the first integrated data calculation processing unit determines that the first computer is the master, the latest integrated data is obtained from the process data and the previous integrated data. The calculated value is updated and recorded in the first auxiliary storage device first, and then the second auxiliary storage device is also updated and recorded with the same latest integrated data after the update recording in the first auxiliary storage device. At this time, when the update record of the integrated data is not recorded in the first auxiliary storage device for some reason,
Update recording of the integrated data in the second auxiliary storage device is prohibited. As a result, the integrated data recorded in the first auxiliary storage device and the integrated data recorded in the second auxiliary storage device become the same, and the integrated data can be unified. Further, even if the first computer malfunctions and the integrated data in the first auxiliary storage device is lost during the update recording in the first auxiliary storage device, the integrated data in the second auxiliary storage device is held.

Further, when the second integrated data calculation processing section determines that the second computer is the master, the latest integrated data is calculated from the process data and the previous integrated data, and is stored in the second auxiliary storage device. First, update recording is performed, and after the update recording is performed in the second auxiliary storage device, the same latest recording is also performed in the first auxiliary storage device. At this time, if the update recording is not performed in the second auxiliary storage device for some reason, the update recording in the first auxiliary storage device is prohibited. As a result, the integrated data recorded in the first auxiliary storage device and the integrated data recorded in the second auxiliary storage device become the same, and the integrated data can be unified. Further, even if the second computer malfunctions and the integrated data of the second auxiliary storage device is lost during the update recording in the second auxiliary storage device, the integrated data of the first auxiliary storage device is retained.

Therefore, the first is due to the deviation of the calculation timing and the like.
It is possible to avoid a discrepancy between the integrated data of the second auxiliary storage device and the second auxiliary storage device, to eliminate a work mistake when one of the computers recovers from the failure, and to save a great deal of labor and time required for the transfer work. can do. Furthermore, there is no need to duplicate the auxiliary storage device.

According to the data processor of claim 2, the master / slave judging means respectively determines the master status or the slave status for the first computer and the second computer according to the operating conditions of the first computer and the second computer. Determine the status and set. Next, when the first computer is in the master status, the latest integrated data is updated and recorded in the first auxiliary storage device, and when the update recording is completed, the integrated data update completion signal is input and the second auxiliary storage device is updated. Update and record with the integrated data of. At this time, the integrated data of the first auxiliary storage device is not updated unless the integrated data update completion signal is input. As a result, the integrated data recorded in the first auxiliary storage device and the integrated data recorded in the second auxiliary storage device become the same, and the integrated data can be unified. Also, the first
Even if the first computer malfunctions and the integrated data of the first auxiliary storage device is lost during the update recording in the auxiliary storage device, the integrated data of the second auxiliary storage device is held.

On the other hand, when the computer is in the master status, the latest integrated data is updated and recorded in the second auxiliary storage device, and when the update recording is completed, the integrated data update completion signal is input to the first auxiliary storage. It is updated and recorded in the device.
At this time, if the integrated data update completion signal is not input,
The integrated data in the first auxiliary storage device is not updated and recorded.
As a result, the integrated data recorded in the first auxiliary storage device and the integrated data recorded in the second auxiliary storage device become the same, and the integrated data can be unified. Further, even if the second computer malfunctions and the integrated data of the second auxiliary storage device is lost during the update recording in the second auxiliary storage device, the integrated data of the first auxiliary storage device is retained. Therefore, the data recovery work can be omitted, and the auxiliary storage device need not be duplicated.

According to the data processor of claim 3, the first
If the latest integrated data by the integrated data calculating means of the first computer is input while the data server of 1 determines that the first computer is the master, the integrated data of the first auxiliary storage device becomes the latest integrated data. Update recorded, second
If the latest integrated data by the integrated data calculating means of the second computer is input while it is determined that the computer is the master, the integrated data in the first auxiliary storage device is updated and recorded with the latest integrated data.

Further, when the second data server determines that the first computer is the master, if the latest integrated data by the integrated data calculating means of the first computer is input,
When the integrated data of the second auxiliary storage device is updated and recorded with the latest integrated data, and the latest integrated data is input by the integrated data calculating means of the second computer when the second computer is determined to be the master, The integrated data of the auxiliary storage device is updated and recorded with the latest integrated data.

As a result, the integrated data can be unified with the same recording data in the auxiliary storage device and the auxiliary storage device. Further, since the integrated data is recorded in the first auxiliary storage device and the second auxiliary storage device via the first data server and the second data server, the first computer or the second computer can be used during the update recording of the integrated data. It is possible to prevent the accumulated data of the first auxiliary storage device and the second auxiliary storage device from being lost even if any of the above-mentioned computers fails. Therefore, it is possible to avoid inconsistency of the integrated data of the first auxiliary storage device and the second auxiliary storage device due to the calculation timing deviation, etc., and it is possible to eliminate the work mistake when one of the computers recovers from the failure and to transfer the data. A great deal of labor and time required can be eliminated. Furthermore, there is no need to duplicate the auxiliary storage device.

According to the data processing device of claim 4,
When the first computer is used as the master by the server-side master / slave determination means, the accumulated data of the first auxiliary storage device is updated and recorded with the latest accumulated data from the first computer, and the second computer is used as the master. Sometimes second
The integrated data in the first auxiliary storage device is updated and recorded with the latest integrated data from the computer. Also, when the first data server recovers from the failure, the accumulated data from the second auxiliary storage device is transferred and replenished in the first auxiliary storage device.

On the other hand, when the first server is the master by the second server side master / slave determination means, the first
Of the second auxiliary storage device is updated and recorded by the latest accumulated data from the second computer, and when the second computer is the master, the latest accumulated data from the second computer causes the second auxiliary storage device to be recorded. The accumulated data is updated and recorded. Further, when the second data server recovers from the failure, the accumulated data from the first auxiliary storage device is transferred and replenished in the second auxiliary storage device. As a result, integrated data of the first auxiliary storage device and the second auxiliary storage device are unified. Further, even if either the first computer or the second computer fails during the update recording in the first auxiliary storage device or the second auxiliary storage device, the first auxiliary storage device or the second auxiliary storage device. There is no loss of integrated data in the storage device. Moreover, if the first data server or the second
Even if the data server of (1) fails, the integrated data is replenished by the first data recovery means or the second data recovery means.

Therefore, there is no discrepancy in the integrated data of the first auxiliary storage device and the second auxiliary storage device, and it is not necessary to perform a labor-intensive and time-consuming data transfer operation by a human when recovering from a computer failure. can do. further,
There is no need to duplicate the auxiliary storage device.

According to the data processing device of the fifth aspect, the first
Data recorded by the computer which is determined to be the master of the computer and the second computer is recorded in the first auxiliary storage device and the second auxiliary storage device. As a result, the same recording data is recorded in the first auxiliary storage device and the second auxiliary storage device, and the recording data is unified. Therefore, since there is no mismatch between the first auxiliary storage device and the second auxiliary storage device, no recovery work is required, and a great deal of labor and time required for work error or recovery can be eliminated.

According to the data processing device of claim 6,
When the record data by the computer determined to be the master of the computer and the second computer is input, the master status index is added and the data is recorded in the first auxiliary storage device and the second auxiliary storage device. On the other hand, when the record data determined as the slave status is input and the record data by the computer of the master status of the data collection timing is not recorded in the first auxiliary storage device and the second auxiliary storage device, Recording data is recorded by adding a status index. As a result, the first auxiliary storage device and the second auxiliary storage device
The recorded data with the auxiliary storage device of
When the processing by the master computer is delayed, the record data of the slave computer is once recorded and the loss of the time-series record data is prevented. Therefore, the mismatch between the first auxiliary storage device and the second auxiliary storage device does not occur, so that the recovery work becomes unnecessary, and the transfer error or the great labor due to the recovery work can be made unnecessary.

According to the data processing device of claim 7,
When the first computer is determined to be the master by the data server of, the recorded data from the first computer is the first data.
When the second computer is determined to be the master, the recording data from the second computer is recorded in the first auxiliary storage device. On the other hand, when the first computer is determined to be the master by the second data server, the record data is recorded in the second auxiliary storage device from the first computer, and the second computer is determined to be the master. At this time, the record data from the second computer is recorded in the second auxiliary storage device. As a result, the recording data in the first auxiliary storage device and the second auxiliary storage device are unified. Therefore, the recovery work for replenishing the recorded data when the computer is recovered becomes unnecessary, and the great effort required for the recovery work becomes unnecessary.

According to the data processing device of claim 8,
When the first server determines that the first computer is the master by the data server, when the record data from the first record data collecting means is input, it is recorded in the first auxiliary storage device with the master status index added, When it is determined that the second computer is the master, if the record data is input from the second record data collecting means, the master data is added to the first auxiliary storage device and recorded.

On the other hand, when the second data server determines that the first computer is the master, when the record data is input from the first record data collecting means, the master status index is added to the second auxiliary storage device. When the second computer is judged to be the master, and the record data from the second record data collecting means is input, it is recorded with the master status index added to the second auxiliary storage device. . In this case, the record data is input from the first record data collecting unit or the second record data collecting unit that is determined to be the slave, and the record data of the master status at the collection timing is the first auxiliary storage device or Second
When not recorded in the auxiliary storage device, the record data to which the slave status index is added is recorded. Furthermore, the first
When the data server or the second data server is recovered from the failure, the record data in the first auxiliary storage device or the second auxiliary storage device, in which the record data is missing, is replenished.

As a result, the recorded data in the first auxiliary storage device and the second auxiliary storage device are replenished and unified without loss. Therefore, the recovery work for replenishing the recorded data when the computer is recovered becomes unnecessary, and the great effort required for the recovery work becomes unnecessary.

[0052]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram of a data processing device showing a first embodiment of the present invention.

In the figure, the data processing device comprises a process data input device 10, a computer (A) 11, a computer (B) 12, an auxiliary storage device (A) 13 and an auxiliary storage device (B) 14.

The computer (A) 11 is provided with an integrated data calculation processing section 21, and the computer (B) 12 is provided with an integrated data calculation processing section 22.

The integrated data calculation processing unit 21 is a computer (A)
From the operating status of 11 and the computer (B) 12, the computer (A)
11 is determined to be the master, the process data from the process data input device 10 and the auxiliary storage device (A)
The latest accumulated data is calculated from the previous accumulated data recorded in 13 and updated and recorded in the auxiliary storage device (A) 13, and after the update recording, it is updated and recorded in the auxiliary storage device (B) 14. .

The integrated data calculation processing unit 22 is a computer (A)
From the operating status of 11 and the computer (B) 12, the computer (A)
11 is determined as the master, the process data from the process data input device 10 and the auxiliary storage device (B)
The latest accumulated data is calculated from the previous accumulated data recorded in 14 and updated and recorded in the auxiliary storage device (B) 14, and after the update recording, it is updated and recorded in the auxiliary storage device (A) 13. .

FIG. 2 shows a specific configuration of the first embodiment of the present invention, in which the integrated data calculation processing unit 21 of the computer (A) 11 is used.
Is provided with integrated data calculation processing means 11a, master-slave determination means 11b, and update timing processing means 11g. The integrated data calculation processing unit 22 of the computer (B) 12 is provided with integrated data calculation processing means 12a, master-slave determination means 12b, and update timing processing means 12g. Also, computer (A) 11 and computer (B) 1
2 and the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 are connected via a transmission line 17.

Here, the master-slave determination means 11b and the master-slave determination means 12b make a determination according to the operating conditions of the computer (A) 11 and the computer (B) 12, and determine which one of them has the master status as the master computer. The slave status is set by using the other as a slave computer.

The integrated data calculation processing means 11a and the integrated data calculation processing means 12a are used for the process data input from the process data input device 10 and the previous integration recorded in the auxiliary storage device (A) 13 or the auxiliary storage device (B) 14. The latest integrated data is calculated from the data and the auxiliary storage device (A) 13 or auxiliary storage device (B) 14 corresponding to the computer with the master status is updated and recorded only when the own computer is in the master status. In addition, the latest integrated data and an integrated data update completion signal indicating the completion of update recording are output.

The update timing processing means 11g and the update timing processing means 12g input the latest integrated data and the integrated data update completion signal, and the auxiliary storage device (A) 13 or the auxiliary storage device (B) corresponding to the slave status computer. 14 is updated with the latest integrated data.

Next, the processing of the master / slave judging means 11b will be described with reference to FIG.

First, when the computer (A) 11 is started up, it is initialized, and the master-slave determination means 11b outputs a request request signal to the master-slave determination means 12b of the computer (B) 12 via the transmission line 17. (S1 to S3).

On the other hand, the master-slave judging means 1
When 1b receives the request response signal, the master / slave determination means 11b sets the slave status of the computer (A) 11 (S5). At this time, when the master / slave determination unit 11b does not receive the request response signal from the master / slave determination unit 12b, the computer (A) 1
1 is set to the master status (S6).

Then, in the next processing cycle, the computer (A) 11
If is continuously operating, the process returns to the first processing (S
1), master / slave determination means 12 of computer (B) 12
It is determined whether the request request signal is input from b (S7). At this time, when the request request signal is input, the master / slave determination means 11b outputs the status of the computer (A) 11 to the master / slave determination means 12b together with the request response signal (S8, S).
9).

On the other hand, when the request request signal is not input from the computer (B) 12, the master / slave determination means 11b outputs the request request signal to the master / slave determination means 12b (S7, S10). On the other hand, when the request response signal is received from the master / slave determination means 12 and the status of the computer (B) 12 is the master status, the status of the computer (A) 11 is set to the slave status (S11 to S13). ).

In this case, the master / slave judging means 12
When the status of the computer (B) 12 is the slave status even when the request response signal is not received from b or the request response signal is received, the computer (A) 11
Is set to the master status (S1
4).

The processing of the master-slave determination means 11b of the computer (A) 11 described above is executed at a constant cycle, and the master-slave determination means 12b of the computer (B) 12 of the other party also performs the same processing as that described in FIG. Done.

Here, the computer (A) 11 and the computer (B)
The status of 12 is an index indicating whether or not the own computer is the master. The request response signal is output only when the computer (A) 11 or the computer (B) 12 is operating normally. In addition, calculator (A)
11 and the computer (B) 12 are started at the same time,
For example, it is predetermined that the computer (A) 11 has the master status.

As described above, in order to confirm the operating states of the computers, one master-slave judging means outputs a request request signal to the other master-slave judging means. When this request request signal is received, the request response signal is received and output to the source of the request request signal.
The side receiving the request response signal, that is, the sender of the request request signal receives this request response signal, and in response to this, determines that the computer having the master-slave determination means on the other side is operating normally. . On the contrary, if the request response signal is not received, it is determined that the partner computer is not operating normally.

Next, the processing of the integrated data calculation processing means 11a will be described with reference to FIG.

First, the integrated data calculation processing means 11a
When waiting for the calculation timing, the process data a (t) is input from the process data input device 10 while the previous integrated data x (t−1) is input from the auxiliary storage device (A) 13 (S21, S22).

Subsequently, the integrated data calculation processing means 11a calculates the integrated data according to the following calculation formula (1) (S23).

X (t) = f {a (t), x (t-1)} --- (1)

Next, a status is input from the master / slave determination means 11b to determine whether or not the own computer (A) 11 is a master (S24). At this time, if the computer (A) 11 has the master status, the integrated data x (t) is output to the auxiliary storage device (A) 13 and the auxiliary storage device (A) 1
The integrated data of 3 is updated (S25). When the auxiliary storage device (A) 13 is updated with the integrated data, the integrated data update completion signal indicates the update timing processing means 11.
It is output to g (S26).

On the other hand, when it is determined that the computer (A) 11 is not in the master status but in the slave status,
The integrated data calculation processing means 11a of the computer (A) 11 is
Wait until the next calculation timing without updating the integrated data of the auxiliary storage device (A) 13.

The integrated data calculation processing means 11a described above
The processing of (4) is also periodically executed by the integrated data calculation processing means 12a, similarly to FIG.

Next, the update timing processing means 11g
When the integrated data update completion signal is input from the integrated data calculation processing means 11a, the integrated data x (t) is input and the integrated data in the auxiliary storage device (B) 14 is updated. As a result, when the auxiliary storage device (A) 13 is not updated with the integrated data x (t) for some reason, the auxiliary storage device (B) 14 is not updated with the integrated data x (t). Therefore, even if the integrated data in the auxiliary storage device (A) 13 is lost, the integrated data in the auxiliary storage device (B) 14 is prevented from being lost.

Next, the operation when the computer fails will be described.

First, assuming that the computer (A) 11 has the master status and the computer (B) 12 has the slave status and the computer (A) 11 has failed, the master-slave determination means 12b of the computer (B) 12 determines that the master status is the master status. To be done. At this time, as described with reference to FIG. 4, the latest integrated data x (t) is obtained by the integrated data calculation processing means 12a, and the integrated data x (t) is output to the auxiliary storage device (B) 14. Further, after the auxiliary storage device (B) 14 is updated, the integrated data x (t) is output to the auxiliary storage device (A) 13. As a result, the integrated data x (t-1) of the auxiliary storage device (B) 14 is updated to the latest integrated data x (t), and the auxiliary storage device (A) 13 is updated with the first integrated data x (t). To be done.

On the other hand, when the computer (B) 12 on the slave status side fails, the master / slave determination means 11b of the computer (A) 11 determines that the computer (A) 11 is in the master status. In this case, the processing of the integrated data calculation processing means 11a is performed.

Next, the case where the computer recovers from a failure will be described.

First, when the computer (B) 12 recovers from a failure, it is determined by the master-slave determination means 11b of the computer (A) 11 that it is in the master status before the recovery. When the computer (B) 12 is restored, the computer (B)
The master-slave determination means 11b of 12 is the computer (A) 1
Based on the master status from 1, the computer (A) 11 determines that the computer (B) 12 is the slave status.

As described above, according to the first embodiment, the master / slave determination means 11b and the master / slave determination means 12b are provided.
Determines and sets the master status or slave status of the computer (A) 11 and the computer (B) 12 according to the operating conditions of the computer (A) 11 and the computer (B) 12. Next, when the computer (A) 11 is in the master status, the latest integrated data is updated and recorded in the auxiliary storage device (A) 13, and when the update recording is completed, an integrated data update completion signal is input to the auxiliary storage device (B). 14 is updated and recorded with the latest integrated data. At this time, the integrated data in the auxiliary storage device (A) 13 is not updated unless the integrated data update completion signal is input. As a result, the integrated data recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 become the same, and the integrated data can be unified. Further, even if the computer (A) 11 fails and the integrated data of the auxiliary storage device (A) 13 is lost during the update recording in the auxiliary storage device (A) 13, the integrated data of the auxiliary storage device (B) 14 is retained. To be done.

On the other hand, when the computer (B) 12 is in the master status, the latest integrated data is updated and recorded in the auxiliary storage device (B) 14, and when the update recording is completed, the integrated data update completion signal is input. Auxiliary storage device (A) 13
Will be updated and recorded. At this time, when the integrated data update completion signal is not input, the integrated data in the auxiliary storage device (A) 13 is not updated and recorded. As a result, the integrated data recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 become the same, and the integrated data can be unified. Further, even if the computer (B) 12 malfunctions and the integrated data in the auxiliary storage device (B) 14 is lost during the update recording in the auxiliary storage device (B) 14, the integrated data in the auxiliary storage device (A) 13 is retained. To be done. Therefore, it is not necessary to duplicate the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14.

FIG. 5 is a block diagram of a data processing device showing a second embodiment of the present invention.

In the figure, the data processing device comprises a process data input device 10, a computer (A) 11 and a computer (B).
12 and auxiliary storage device (A) 13 and auxiliary storage device (B) 1
4, data server (A) 15, and data server (B) 16
It consists of The computer (A) 11 is provided with integrated data calculating means 11c, and the computer (B) 12 is provided with integrated data calculating means 12c.

The integrated data calculating means 11c and the integrated data calculating means 12c use the process data input from the process data input device 10 and the previous integrated data input from the auxiliary storage device (A) 13 or the auxiliary storage device (B) 14. The latest integrated data is calculated and output.

The data server (A) 15 is the computer (A) 1
1 (Computer (A) 1 from the operating status of 1 and Calculator (B) 12
When the latest integrated data is input from the integrated data calculation means 11c of the computer (A) 11 when it is determined which of the computer 1 and the computer (B) 12 is the master, and the computer (A) 11 is the master. If the latest integrated data is input from the integrated data calculation means 12c of the computer (B) 12 while the integrated data of (1) is updated and recorded in the auxiliary storage device (A) 13 and the computer (B) 12 is determined to be the master. The latest integrated data is updated and recorded in the auxiliary storage device (A) 13.

The data server (B) 16 is the computer (A) 1
1 (Computer (A) 1 from the operating status of 1 and Calculator (B) 12
When the latest integrated data is input from the integrated data calculation means 11c of the computer (A) 11 when it is determined which of the computer 1 and the computer (B) 12 is the master, and the computer (A) 11 is the master. When the computer (B) 12 is determined to be the master, the latest integrated data from the integrated data calculating means 12c of the computer (B) 12 is input. Then, the latest integrated data is updated and recorded in the auxiliary storage device (B) 14.

FIG. 6 shows a specific configuration of the data processing device. The data server (A) 15 includes an integrated data calculation processing means 15a and a server side master / slave determination means 1.
5b and data recovery means 15f are provided. In addition, the data server (B) 16 includes integrated data calculation processing means 16a.
A server side master / slave determination means 16b and a data recovery means 16f are provided. Each means is connected by the transmission line 17.

The server-side master / slave determination means 15b and the server-side master / slave determination means 16b are the computer (A).
From the operating status of 11 and the computer (B) 12, the computer (A)
It is determined which of 11 and the computer (B) 12 is the master, one of them is set as the master computer and the master status is set, and the other is set as the slave computer and the slave status is set.

When the integrated data calculation processing means 15a sets the computer (A) 11 as the master status and the latest integrated data is input from the integrated data calculation means 11c, the latest integrated data is stored in the auxiliary storage device (A). Thirteen
When the latest accumulated data is input from the accumulated data calculating means 12c while the computer (B) 12 is set as the master status, the latest accumulated data is stored in the auxiliary storage device (A) 13. Is.

The data recovery means 15f has its own data
When the bus is recovered from the failure, it requests the data server (B) 16 to transfer the latest data from the auxiliary storage device (B) 14 and store it in the auxiliary storage device (A) 13.

When the integrated data calculation processing means 16a sets the computer (A) 11 as the master status and the latest integrated data is input from the integrated data calculation means 11c, the latest integrated data is stored in the auxiliary storage device (B). 14
When the latest integrated data is input from the integrated data calculating means 12c when the computer (B) 12 is set as the master status, the latest integrated data is stored in the auxiliary storage device (B) 14. Is.

The data recovery means 16f has its own data
When the bus is recovered from the failure, it requests the data server (A) 15 to transfer the latest data from the auxiliary storage device (A) 13 and store it in the auxiliary storage device (B) 14.

With the above configuration, the server side master / slave determination means 15b and the server side master / slave determination means 16b.
Means that the same processing as the master-slave determination means 11b of the first embodiment described in FIG. 3 is performed.

That is, the server side master / slave determination means 15b outputs a request request signal to the integrated data calculation means 11c of the computer (A) 11. On the other hand, when the request request signal is input, the integrated data calculation means 11c outputs a request response signal to the server-side master / slave determination means 15b if the computer (A) 11 is operating normally. If the computer (A) 11 is not normal, no reaction is made. In the server side master / slave determination means 15b, the integrated data calculation means 11c
If there is a request response signal input from the computer (A) 1
1 is determined to be normal. If the request response signal is not input, it is determined that the computer (A) 11 is not normal.

Further, the server side master / slave judging means 15b judges whether or not the computer (B) 12 is normal. In this case, computer (A) 11 and computer (B)
When both 12 and 12 are not normal, it is determined that neither computer (A) 11 nor computer (B) 12 is a master, and when either one of computer (A) 11 and computer (B) 12 is normal, a normal computer ( A) 11 and computer (B) 12 are masters. Whether it is a master or not is determined by the computer (A) 11 and the computer (B) 12 based on the master status.

Computer (A) 11 and computer (B) 1
Both of the two are set in advance so that the computer (A) 11 becomes the master when starting the activation.

The processing described above is performed by the data server (B) 16
The server-side master / slave determination means 16b is also processed in the same manner.

Next, the integrated data calculating means 11c of the computer (A) 11 performs the processing shown in FIG. 7, and first, at the calculation timing t, inputs the process data a (t) from the process data input device 10. , The previous accumulated data x (t− from the auxiliary storage device (A) 13 via the transmission line 17.
1) is input (S31, S32).

The integrated data calculation means 11c and the input process data a (t) and the previous integrated data x (t-
The integrated data is calculated from 1) (S33). The integrated data calculation means 11c outputs the calculated integrated data x (t) to the integrated data calculation processing means 15a and the integrated data calculation processing means 16a, and waits until the next calculation timing (S3).
4).

Next, the processing of the integrated data calculation processing means 15a will be described with reference to FIG.

First, assuming that the integrated data is input from the integrated data calculation means 11c, the integrated data calculation processing means 15a outputs a request request signal to the server side master / slave determination means 15b, and the computer (A) 11 and the computer ( B) The status of 12 is taken in, and when the computer (A) 11 is in the master status, the auxiliary storage device (A) 13 is updated and recorded with the integrated data (S41 to S43). At this time, when the computer (A) 11 is in the slave status,
The auxiliary storage device (A) 13 is not updated and recorded with the integrated data (S41).

Subsequently, integrated data calculation processing means 15a
When the integrated data is input from the integrated data calculating means 12c, the status is fetched from the server side master slave determining means 15b, and if the computer (B) 12 is the master status, the auxiliary storage device (A) 13 is updated and recorded with the integrated data. (S44 to S46). At this time, when the computer (B) 12 is in the slave status, the auxiliary storage device (B) 14 is not updated (S45).

Similarly, the integrated data calculation processing means 16a is also integrated data calculation means 11c or integrated data calculation means 1
The integrated data of 2c is input and the integrated data of the integrated data calculating means 11c or the integrated data calculating means 12c of the master status is updated and recorded in the auxiliary storage device (B) 14.

As a result, if the data server (A) 15 and the data server (B) 16 are normal, the master computer (A) 11 or the computer (A) 11 is stored in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14. B) The integrated data from 12 is updated and recorded, and the integrated data is unified.

Here, one of the computers (A) 11
Alternatively, a case where the computer (B) 12 fails will be described.

Initially, it is assumed that the computer (A) 11 is a master and the computer (B) 12 is a slave. First, when the master computer (A) 11 fails, the server-side master / slave determination means 15b determines that the computer (B) 12 is the master, and the integrated data calculation processing means 15a of the data server (A) 15 Only the integrated data of the computer (B) 12 is updated and recorded in the auxiliary storage device (A) 13.

The data server (B) 16 also stores only the accumulated data of the computer (B) 12 in the auxiliary storage device (B) 14.
Record the update.

A case where the computer recovers from a failure will be described.

It is assumed that the computer (B) 12 is a computer that recovers from a failure. Before the recovery, the computer (A) 11 is determined to be the master, and the integrated data of the computer (A) 11 is used for updating the data in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14. After the restoration, the server-side master / slave determination means 15b determines the computer (A) 11 as the master as before the restoration, updates the data of the auxiliary storage device (A) 13, and the computer (B) 12 calculates the accumulated data. There will be no change other than the calculation of.

The data server (B) 16 side also operates similarly to the data server (A) 15 side. In this way, the data in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 are unified into integrated data by the master computer,
Also, when the computer is restored from a failure, the restoration work is unnecessary.

Next, the processing of the data recovery means 15f will be described with reference to FIG.

First, when the data server (A) 15 fails and recovers, the data recovery means 15f determines recovery from the failure, and a data request is issued to the data recovery means 16f (S5).
1, S52). As a result, the latest accumulated data in the auxiliary storage device (B) 14 is transferred and stored in the auxiliary storage device (A) 13. The missing accumulated data in the auxiliary storage device (A) 13 when the data server (A) 15 has failed is supplemented (S53).

When the data recovery means 16f receives a data request from the data recovery means 16f when the data server (B) 16 fails and recovers, the auxiliary storage device (A).
The latest integrated data of 13 is transferred to the data recovery means 16f (S54, S55). The above processing is the same as in the case of the data recovery means 16f.

For example, when one of the data server (A) 15 and the data server (B) 16 fails, when the data server (A) 15 fails, the data server (A) Input / output to / from the auxiliary storage device (A) 13 connected to 15 becomes impossible. Therefore, the integrated data calculated by the computer (A) 11 and the computer (B) 12 is updated and recorded in the auxiliary storage device (B) 14 by the data server (B) 16. On the other hand, when the data server (B) 16 fails, input / output to / from the auxiliary storage device (B) 14 connected to the data server (B) 16 becomes impossible. Therefore, the computer (A)
11, the integrated data calculated by the computer (B) 12 is updated and recorded in the auxiliary storage device (A) 13 via the data server (A) 15.

When the data server recovers from a failure,
It is assumed that the data server (B) 16 is a data server that recovers from a failure. Before recovery, the data recorded in the auxiliary storage device (B) 14 connected to the data server (B) 16 may be equivalent to that before the failure or may be damaged by the failure of the data server (B) 16.

Further, since the status data in the data server (B) 16 may be damaged, the data recovery means 16 of the data server (B) 16 is required for recovery.
f is the data recovery means 15f of the data server (A) 15.
The data in the auxiliary storage device (A) 13 is read through and is transferred to the auxiliary storage device (B) 14. As a result, the accumulated data recorded in the auxiliary storage device (B) 14 can be the latest accumulated data similar to that in the auxiliary storage device (A) 13.

Further, the data recovery means 16f is the server side master / slave determination means 15 of the data server (A) 15.
Read status data from b, data server (B)
16 server side master / slave determination means 16b. As a result, the status data in the data server (A) 15 and the data server (B) 16 are made the same, and the same computer is determined as the master.

As described above, according to the second embodiment, when the data server (A) 15 determines that the computer (A) 11 is the master, the latest integration by the integrated data calculation means 11c of the computer (A) 11 is performed. When data is input, the integrated data of the auxiliary storage device (A) 13 is updated and recorded with the latest integrated data, and when the computer (B) 12 is determined to be the master, the integrated data calculation means 11c of the computer (B) 12 is used. Auxiliary storage device (A) when the latest accumulated data is entered
The 13 accumulated data are updated and recorded with the latest accumulated data.

When the data server (B) 16 determines that the computer (A) 11 is the master, if the latest integrated data is input by the integrated data calculating means 11c of the computer (A) 11, the auxiliary storage device ( B) When the integrated data of 14 is updated and recorded with the latest integrated data and the computer (B) 12 is determined to be the master, the computer (B) 1
When the latest integrated data by the integrated data calculating means 11c of 2 is input, the integrated data of the auxiliary storage device (B) 14 is updated and recorded with the latest integrated data. by this,
Since the recording data is the same in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14, the integrated data can be unified.

Further, since the integrated data is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 via the data server (A) 15 and the data server (B) 16, it is possible to update the integrated data during recording. Even if either the computer (A) 11 or the computer (B) 12 fails, it is possible to prevent the accumulated data of the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 from being lost. Therefore, it is possible to avoid a discrepancy in the integrated data of the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 due to a calculation timing shift, etc., and it is possible to eliminate a work error when one of the computers recovers from a failure and to transfer the data. A great deal of labor and time required for the work can be eliminated.

FIG. 10 is a block diagram of a data processing device showing a third embodiment of the present invention.

In the figure, the data processing device comprises a process data input device 10, a computer (A) 11 and a computer (B).
12 and auxiliary storage device (A) 13 and auxiliary storage device (B) 1
It consists of four. The computer (A) 11 is provided with a recording data storage unit 23, and the computer (B) 12 is provided with a recording data storage unit 24.

The recording data storage unit 23 is the computer (A) 11
(A) 11 from the operating conditions of the computer and the computer (B) 12
Is determined to be the master, the recording data by the collection processing of the computer (A) 11 is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14.

The recording data storage unit 24 is the computer (A) 11
(A) 11 from the operating conditions of the computer and the computer (B) 12
Is determined to be the master, the recording data by the collection processing of the computer (A) 11 is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14.

FIG. 11 shows a specific configuration of the data processing apparatus shown in FIG. 10, in which a computer (A) 11 and a computer (B) 12 are connected via a transmission line 17. The recording data storage unit 23 of the computer (A) 11 includes a master / slave determination unit 11b, a recording data storage unit 11d, and a recording data correction unit 11e. Calculator (B) 1
The second recording data storage unit 24 includes a master / slave determination unit 12b, a recording data storage unit 12d, and a recording data correction unit 12e.

The master-slave judging means 11b and the master-slave judging means 12b make judgments according to the operating conditions of the computer (A) 11 and the computer (B) 12, and set either one as the master computer to set the master status. ,
Either one is used as a slave computer to set the slave status.

The record data saving means 11d and the record data saving means 12d collect the process data to create the record data, and when the own computer is set as the master status, the master data index is added. The recording data is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14.

The recording data correction means 11e and the recording data correction means 12e have their own computers set to the slave status, and the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 are set to the master status of the data collection timing. When recording data is unrecorded Auxiliary storage device (A) 1
3 and the auxiliary storage device (B) 14 are added with the index of the slave status to record the record data.

With the above configuration, the master-slave judging means 1
1b and the master / slave determination means 12b are processed in the same manner as in the first embodiment described with reference to FIG. 3, one of the computer (A) 11 and the computer (B) 12 is the master, and the other is the slave. To be done.

Next, the processing of the recording data storage means 11d will be described with reference to FIG.
Process data is input from 0, the collection time is added to the process data, and recording data is created (S61, S62).

Here, the recording data storage means 11d outputs a request request signal to the master-slave determination means 11b and fetches the status from the master-slave determination means 11b, and adds the master status when the computer (A) 11 is the master. The record data is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 (S63, S6).
4). At this time, when the computer (A) 11 is a slave, the print data is output to the print data correction means 11e (S
65).

Next, the processing of the recording data correction means 11e will be described with reference to FIG.

When the recording data is input from the recording data storage means 11d, the recording data correction means 11e refers to the recording data recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 and makes the same. The presence or absence of recorded data with the master status of the collection time is determined (S71, S7).
2). In this determination, if there is no record data with the master status, the record data with the slave status is temporarily stored in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 (S73). On the other hand, if there is already the record data with the master status, the process ends without saving the record data (S72).

For example, a file of certain recording data in the auxiliary storage device (A) 13 is as shown in FIG. That is, at the illustrated collection time 13:00, the computer (A)
11 is a master and data 110 is recorded (A), and then
It is assumed that the computer (A) 11 is the master and the data 150 is recorded at 13:08 after 13:00 and less than 13:10 (B).

Thereafter, the collection time is after 13:10 and 13: 2.
If it is less than 0, the master computer (A) 11 becomes a slave,
It is assumed that the computer (B) 12 has become the master. In this situation, it is assumed that the master computer (B) 12 does not input to the auxiliary storage device (A) 13 due to a delay in the processing of the recording data from the recording data storage means 12d due to some processing. At this time, the recording data correction means 11e of the slave computer (A) 11 records the recording data collected by the slave computer (A) 11 together with the slave status at the collection time 13:19 and the data 100 (C). .

Next, when the delay of the processing of the master computer (B) 12 is recovered, the data 112 is recorded together with the master status at the collection time 13:29 (D). When recording data is input from the master computer (A) 11 or the computer (B) 12 within the collection time from 13:19 to less than 13:20, the area of (C) above is the master computer (A) 11 Alternatively, it is overwritten with the recorded data by the computer (B) 12.

Thus, the slave computer (A) 11
Or the recorded data of the computer (B) 12 is collected first,
When the record data from the master computer (A) 11 or the computer (B) 12 is not recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14, the slave computer (A) is first recorded. 11 or the recording data from the computer (B) 12 is recorded. As a result, it is possible to prevent the recording data from being lost due to a delay in the processing of the computer (A) 11 or the computer (B) 12 when the master and the slave are exchanged.

Here, the case where one of the computers fails will be described. It is assumed that the computer (A) 11 is initially the master and the computer (B) 12 is the slave.

First, when the master computer (A) 11 fails, the master-slave determination means 12b of the computer (B) 12 determines that the computer (B) 12 is the master. The first data collection timing after the failure is t1,
Data collection timing until t1-1 Computer (A) 11
It is assumed that the collected record data of (1) is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 in time series.

The record data collected by the master computer (B) 12 at the data collection timing t1 is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 and recorded at the data collection timing t1-1. It is recorded following the data, and thereafter, is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 at each collection timing.

On the other hand, when the slave computer (B) 12 fails, the determination result of the master-slave determination means 11b of the computer (A) 11 is the same as before the failure, and the computer (A) 11 is the master. There is no change in the computer (A) 11, and the recording data collected by the computer (A) 11 at each recording data collection timing continues after the failure even in the auxiliary storage device (A) 13 and the auxiliary storage device (B).
It will be recorded in 14.

As described above, according to the third embodiment, when the record data by the computer determined to be the master among the computers (A) 11 and (B) 12 is input, the master status index is added to assist. It is recorded in the storage device (A) 13 and the auxiliary storage device (B) 14. On the other hand, the record data judged as slave status is input, and
The record data is recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 by adding the slave status index when the recording data by the computer of the master status of the data collection timing is not recorded. As a result, the recording data of the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 are unified, and when the processing by the master computer is delayed, the recording data of the slave computer is once recorded. Loss of recorded data of the series is prevented.

Therefore, since the mismatch between the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14 does not occur, the recovery work becomes unnecessary, and the transfer error or the great labor due to the recovery work can be made unnecessary.

FIG. 15 is a block diagram of a data processing device showing a fourth embodiment of the present invention.

In the figure, the data processor is a process data input device 10, a computer (A) 11 and a computer (B) 1.
2, data server (A) 15, and data server (B) 16
And an auxiliary storage device (A) 13 and an auxiliary storage device (B) 14. The computer (A) 11 is provided with recording data collection means 11f, and the computer (B) 12 is provided with recording data collection means 12f.

The recording data collecting means 11f and the recording data collecting means 12f collect the process data and create the recording data.

The data server (A) 15 is the computer (A) 1
1 and the operating status of the computer (B) 12 from the computer (A) 11
When the master is determined to be the master, the recording data collecting means 1
When the record data is input from 1f, the record data is recorded in the auxiliary storage device (A) 13, and when the record data is input from the record data collecting unit 12f while the computer (B) 12 determines that the record data is the master, the record data is recorded. Is recorded in the auxiliary storage device (A) 13.

The data server (B) 16 is the computer (A) 1
1 and the operating status of the computer (B) 12 from the computer (A) 11
When the master is determined to be the master, the recording data collecting means 1
When the record data is input from 1f, the record data is recorded in the auxiliary storage device (B) 14, and when the record data is input from the record data collecting unit 12f while the computer (B) 12 determines that it is the master, the record data is recorded. Is recorded in the auxiliary storage device (B) 14.

FIG. 16 shows a specific configuration of the above data processing apparatus, which is a computer (A) 11 and a computer (B) 12.
The data server (A) 15 and the data server (B) 16 are connected by a transmission line 17. The data server (A) 15 is provided with recording data processing means 15c, server side master / slave determination means 15d, server side recording data correction means 15e and data restoration means 15f. The data server (B) 16 is provided with a recording data processing means 16c, a server side master / slave determining means 16d, a server side recording data correcting means 16e, and a data restoring means 16f.

The server-side master / slave judgment means 15d and the server-side master / slave judgment means 16d are computers (A).
11 and computer (B) 12 determines whether or not it is a master, and sets one of them as a master computer and sets master status, and the other one as a slave computer and sets slave status. It is a thing.

The recording data processing means 15c is a computer (A).
When 11 is set as the master status, when the record data is input from the record data collecting means 11f, the record data is stored in the auxiliary storage device (A) 13, and the computer (B) 12 is set as the master status. At this time, when the record data is input from the record data collecting means 12f, the record data is stored in the auxiliary storage device (A) 13.

The data recovery means 15f has its own data
When the bus is recovered from the failure, it requests the data server (B) 16 to transfer the recording data from the auxiliary storage device (B) 14 and store it in the auxiliary storage device (A) 13.

The server side record data correction means 15e has its own computer set to the slave status, and the record data of the master status at the data collection timing has not been recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14. At the time of recording, the recording data is input and the auxiliary storage device (A) 1
The record data is recorded by adding the index of the slave status to 3.

The recording data processing means 16c is a computer (A).
When 11 is set as the master status, when the record data is input from the record data collecting means 11f, the record data is stored in the auxiliary storage device (B) 14, and the computer (B) 12 is set as the master status. At this time, when the record data is input from the record data collecting means 12f, the record data is stored in the auxiliary storage device (B) 14.

The data recovery means 16f has its own data
When the bus is recovered from the failure, the data server (A) 15 is requested to transfer the recording data from the auxiliary storage device (A) 13 and store it in the auxiliary storage device (B) 14.

The server side record data correction means 16e has its own computer set to the slave status, and the record data of the master status at the data collection timing has not been recorded in the auxiliary storage device (A) 13 and the auxiliary storage device (B) 14. At the time of recording, the recording data is input and the auxiliary storage device (B) 1
The recording data is recorded by adding an index of the slave status to 4.

With the above configuration, first, the processing of the recording data collection means 11f of the computer (A) 11 will be described with reference to FIG. 17. Process data is input from the process data input device 10 at a predetermined data collection timing. (S8
1). Then, the recording data collecting means 11f adds the collection time to the process data to create the recording data (S82). This recorded data is recorded data processing means 1
5c and the recording data processing means 16c are output (S83). The above-mentioned processing is similarly executed for the recording data collecting means 12f of the computer (B) 12.

Next, the server side master / slave determination means 15d of the data server (A) 15 and the server side master / slave determination means 16d of the data server (B) 16.
Is the computer (A) 11 or the computer (B) 12 by the same processing as the master-slave determination means 11b shown in FIG.
One of the statuses is the master status,
The other one has the status as slave status.

Next, the recording data processing means 15c executes the processing shown in FIG. 18, and first, the recording data is inputted from the recording data collecting means 11f or the recording data collecting means 12f (S91).

Next, the computer (A) whose recorded data is the master
It is determined whether the data is input from the computer 11 or the computer (B) 12 (S92). In this determination, if the print data is from the master computer (A) 11 or the computer (B) 12, the master status is added to the print data and output to the auxiliary storage device (A) 13 (S93). At this time,
When the record data is the slave computer (A) 11 or the computer (B) 12, the slave status is added and the record data is output to the server side record data correcting means 15e (S94).

Next, the server side recording data correction means 15e
Then, when the print data is input, the same processing as shown in FIG. 13 is performed.

That is, the server side recording data correction means 1
5e is a master computer (A) 1 that searches the auxiliary storage device (A) 13 to obtain the data collection timing of the recorded data.
1 or computer (B) 12 determines whether or not there is recorded data. In this determination, when there is no record data in the master computer (A) 11 or the computer (B) 12 as described with reference to FIG. 14, the server side record data correcting means 15e.
Records the recording data with the slave status added to the auxiliary storage device (A) 13. The above-mentioned processing is similarly performed for the server side recording data correction means 16e.

Next, the data recovery means 15f executes the same processing as shown in FIG.

First, when the data server (A) 15 fails and recovers, the data recovery means 15f determines recovery from the failure, and a data request is issued to the data recovery means 16f.
As a result, the record data is transferred from the auxiliary storage device (B) 14 and saved in the auxiliary storage device (A) 13, and the recording of the auxiliary storage device (A) 13 when the data server (A) 15 has failed. The missing data is replenished.

When the data recovery means 16f receives a data request from the data recovery means 16f when the data server (B) 16 fails and recovers, the auxiliary storage device (A).
The latest integrated data of 13 is transferred to the data recovery means 16f.

The above processing is the same for the data recovery means 16f.

As described above, according to the fourth embodiment, when the data server (A) 15 determines that the computer (A) 11 is the master, when the record data from the record data collecting means 11f is input, the auxiliary storage is performed. Recorded by adding the master status index to the device (A) 13 and the computer (B)
When it is determined that 12 is the master, when the record data is input from the record data collecting means 12f, the master status index is added to the auxiliary storage device (A) 13 and recorded.

On the other hand, when the data server (B) 16 determines that the computer (A) 11 is the master, when the record data is input from the record data collection means 11f, the master status index is sent to the auxiliary storage device (B) 14. When the record data is additionally recorded and the computer (B) 12 is determined to be the master, when the record data from the record data collecting means 12f is input, it is recorded with the master status index added to the auxiliary storage device (B) 14. It In this case, the record data is input from the record data collecting unit 11f determined as the slave, and the record data of the master status at the collection timing is not recorded in the auxiliary storage device (A) 13 or the auxiliary storage device (B) 14. At this time, the record data to which the slave status index is added is recorded. Further, when the data server (A) 15 or the data server (B) 16 is recovered from the failure, the recording data in the auxiliary storage device (A) 13 or the auxiliary storage device (B) 14 in which the recording data is lost is replenished. .

As a result, the recorded data in the auxiliary storage device (A) 13 and the second auxiliary storage device (B) 14 are replenished and unified without loss. Therefore, the recovery work for replenishing the recorded data when the computer is recovered becomes unnecessary, and the great effort required for the recovery work becomes unnecessary.

[0174]

As described above, according to the invention of claim 1, the integrated data recorded in the first auxiliary storage device and the integrated data recorded in the second auxiliary storage device become the same, and the integrated data can be unified. Even if the computer breaks down during the update recording and the accumulated data of the first auxiliary storage device or the second auxiliary storage device is lost, the accumulated data is accumulated in either the first auxiliary storage device or the second auxiliary storage device. Can hold data. Therefore, it is possible to avoid the inconsistency of accumulated data, eliminate the work mistake when one of the computers recovers from the failure, and save the enormous labor and time required for the transfer work, and duplicate the auxiliary storage device. I no longer need to.

According to the second aspect of the present invention, the integrated data recorded in the first auxiliary storage device and the second auxiliary storage device become the same, and the update recording is being performed in the first auxiliary storage device. Even if the first computer fails and the integrated data of the first auxiliary storage device is lost, the integrated data of the second auxiliary storage device is retained and the second auxiliary storage device stores the second integrated data during update recording. Even if the computer fails and the accumulated data in the second auxiliary storage device is lost, the accumulated data in the first auxiliary storage device is retained. Therefore, it is possible to avoid the inconsistency of accumulated data, eliminate the work mistake when one of the computers recovers from the failure, and save the enormous labor and time required for the transfer work, and duplicate the auxiliary storage device. I no longer need to.

According to the third aspect of the present invention, the recording data is the same in the first auxiliary storage device and the second auxiliary storage device, so that the integrated data can be unified and the first data server and the second data can be obtained. Since the integrated data is recorded via the server, loss of the integrated data between the first auxiliary storage device and the second auxiliary storage device can be prevented even if one of the computers fails during the update recording of the integrated data. it can. Therefore, it is possible to avoid inconsistency of the integrated data of the first auxiliary storage device and the second auxiliary storage device due to the calculation timing deviation, etc., and it is possible to eliminate the work mistake when one of the computers recovers from the failure and to transfer the data. A great deal of labor and time required can be eliminated, and there is no need to duplicate the auxiliary storage device.

According to the fourth aspect of the present invention, the integrated data of the first auxiliary storage device and the second auxiliary storage device are unified, and even if any of the computers fails during the update recording, the integrated data is accumulated. In addition, the accumulated data can be supplemented even if the first data server or the second data server fails. Therefore, there is no discrepancy between the integrated data of the first auxiliary storage device and the integrated data of the second auxiliary storage device, and it is possible to eliminate a labor-intensive and time-consuming transfer operation by a human when a computer breaks down. Furthermore, there is no need to duplicate the auxiliary storage device.

According to the data processor of claim 5, since the record data by the computer judged as the master is recorded in the first auxiliary storage device and the second auxiliary storage device, the recording data can be unified. You can Therefore, since there is no mismatch between the first auxiliary storage device and the second auxiliary storage device, no recovery work is required, and a great deal of labor and time required for work error or recovery can be eliminated.

According to the data processing device of the sixth aspect, the first
When the processing by the master computer is delayed and the recorded data in the second auxiliary storage device and the second auxiliary storage device are unified, the recorded data in the slave computer is once recorded and the time-series recorded data is lost. Can be prevented. Therefore, the data recovery work is unnecessary, and it is possible to eliminate a transfer error or a great amount of labor due to the recovery work.

According to the invention of claim 7, it is possible to unify the record data of the first auxiliary storage device and the second auxiliary storage device, and to supplement the record data when the computer is restored. No recovery work is required, and a great deal of labor required for recovery work is unnecessary.

According to the data processor of claim 8, the first
Recorded data in the second auxiliary storage device and the second auxiliary storage device can be replenished and unified without loss, and a recovery work for replenishing the recorded data when the computer is restored becomes unnecessary and a great deal of labor is involved in the recovery work. Can be eliminated.

[Brief description of drawings]

FIG. 1 is a configuration diagram of a data processing device showing a first embodiment of the present invention.

FIG. 2 is a specific configuration diagram of FIG.

FIG. 3 is a flowchart showing a processing procedure of a master / slave determination unit in FIG.

4 is a flowchart showing a processing procedure of integrated data calculation processing means in FIG. 1. FIG.

FIG. 5 is a configuration diagram of a data processing device showing a second embodiment of the present invention.

6 is a specific configuration diagram of FIG.

FIG. 7 is a flowchart showing a processing procedure of integrated data calculation means in FIG.

8 is a flowchart showing a processing procedure of integrated data calculation processing means in FIG.

9 is a flowchart showing a processing procedure of the data recovery means of FIG.

FIG. 10 is a block diagram of a data processing device showing a third embodiment of the present invention.

11 is a specific configuration diagram of FIG.

FIG. 12 is a flowchart showing a processing procedure of the recording data storage means of FIG.

13 is a flowchart showing a processing procedure of the recording data correction means in FIG.

14 is an explanatory diagram showing an example of recording data recorded in the auxiliary storage device of FIG.

FIG. 15 is a configuration diagram of a data processing device showing a fourth embodiment of the present invention.

16 is a specific configuration diagram of FIG.

17 is a flowchart showing a processing procedure of the recording data collecting means in FIG.

18 is a flowchart showing a processing procedure of the recording data processing means in FIG.

FIG. 19 is a configuration diagram of a data processing device showing a first conventional example.

20 is an explanatory diagram showing an example of the auxiliary storage device of FIG.

FIG. 21 is a configuration diagram of a data processing device showing a second conventional example.

[Explanation of symbols]

10 process data input device 11, 12 computer 11a, 12a, 15a, 16a integrated data calculation processing means 11b, 12b master-slave determination means 11c, 12c integrated data calculation means 11d, 12d recording data storage means 11e, 12e recording data correction means 11f , 12f Record data collecting means 11g, 12g Update timing processing means 13, 14 Auxiliary storage device 15, 16 Data server 15b, 16b Server side master slave judging means 15c, 16c Record data processing means 15d, 16d Server side master slave judging means 15e , 16e Server side recording data correction means 15f, 16f Data recovery means 17 Transmission lines 21, 22 Integrated data calculation processing section 23, 24 Recording data storage section

Claims (8)

[Claims] 1. A process data input device for inputting process data from a plant, a first computer and a second computer for calculating and processing process data input by the process data input device, a first computer and a second computer for the process. Two
In a data processing device having a redundant configuration having a first auxiliary storage device and a second auxiliary storage device for recording the calculation result of the computer, when the first computer is determined to be a master, the process data input The latest integrated data is calculated from the process data from the apparatus and the previous integrated data recorded in the first auxiliary storage device, and the updated data is updated and recorded in the first auxiliary storage device. While the first computer is provided with a first integrated data calculation processing unit for updating and recording in the second auxiliary storage device, while the second computer is determined to be the master, the process data from the process data input device is input. And the latest accumulated data is calculated from the previous accumulated data recorded in the second auxiliary storage device and updated and recorded in the first auxiliary storage device. The data processing apparatus characterized in that a second integrated data calculation processing unit that updates recorded into the second auxiliary storage device after updating recorded on the second computer. 2. Each of the first and second integrated data calculation processing units sets one of them as a master computer and sets a master status, and the other one of them as a slave computer and sets a slave status. The latest integrated data is calculated from the master / slave determination means, the process data input from the process data input device, and the previous integrated data recorded in the first auxiliary storage device or the second auxiliary storage device, Only when the computer in the master status is in the master status, the first auxiliary storage device or the second auxiliary storage device corresponding to the computer in the master status is updated and recorded with the latest integrated data, and the latest integrated data and update recording are completed. Integrated data calculation processing means for outputting an integrated data update completion signal indicating Update timing processing means for inputting an integrated data update completion signal and updating and recording the first auxiliary storage device or the second auxiliary storage device corresponding to the slave status computer with the latest integrated data. The data processing device according to claim 1. 3. A process data input device for inputting process data from a plant, a first computer and a second computer for calculating and processing the process data input by the process data input device, these first computer and first computer. Two
A redundant data processing device having a first auxiliary storage device and a second auxiliary storage device for recording the calculation result of the above computer, and the process data input from the process data input device and the first auxiliary storage device. Alternatively, the integrated data calculating means for calculating and outputting the latest integrated data from the previous integrated data input from the second auxiliary storage device is the first integrated data calculating means.
While each of the first computer and the second computer is provided, it is determined which of the first computer and the second computer is the master, and when the first computer is the master, When the latest integrated data is input from the integrated data calculating means of the computer, the latest integrated data is recorded in the first auxiliary storage device, and when the second computer determines that it is the master, the second integrated data is recorded. A first data server that updates and records the latest integrated data in the first auxiliary storage device when the latest integrated data is input from the integrated data calculating means of the computer; the first computer and the second computer; Which is the master, and when the first computer determines that it is the master, if the latest integrated data is input from the integrated data calculating means of the first computer, the latest integrated data is output as the first integrated data. If the latest accumulated data is input from the accumulated data calculating means of the second computer while the second accumulated data is recorded in the auxiliary storage device, and the second computer determines that the second accumulated data is the master, A second data server for updating and recording data in the second auxiliary storage device. 4. The first server-side master / slave determination in which the first data server sets master status on one of them as a master computer and sets slave status on the other as a slave computer. Means and the first server-side master / slave determination means sets the first computer as the master status, the latest integrated data is input from the integrated data calculating means of the first computer, The accumulated data of the second computer is updated and recorded in the first auxiliary storage device, and the accumulated data of the second computer is set when the second computer is set as the master status by the first server-side master / slave determination means. When the latest accumulated data is input from the calculating means, the product for storing the latest accumulated data in the first auxiliary storage device. A data calculation processing means, the self-de - Tasa - when server is restored from the failure, the second
And a first data recovery unit that requests the data server to transfer the latest data from the second auxiliary storage device and stores the latest data in the first auxiliary storage device, while the second data server , A second server-side master / slave determination means for setting the master status by setting one of them as a master computer and setting the slave status by using the other as a slave computer. When the latest accumulated data is input from the accumulated data calculating means of the first computer while the first computer is set as the master status by the means, the latest accumulated data is sent to the second auxiliary storage device. If the update is recorded and the second server side master / slave determination means sets the second computer as the master status. When the latest integrated data is input to the second computer from the integrated data calculation means of the second computer, the integrated data calculation processing means for storing the latest integrated data in the second auxiliary storage device, and its own data server The first time
4. A second data recovery means for making a request to the data server for transferring the latest data from the first auxiliary storage device and storing the latest data in the second auxiliary storage device. Data processing equipment. 5. A process data input device for inputting process data from a plant, a first computer and a second computer for collecting and processing the process data input by the process data input device as record data, and these first and second computers. In a redundant data processing device having a first auxiliary storage device for recording data recorded by a computer and a second computer, and a second auxiliary storage device, when the first computer is determined to be a master, The first computer is provided with a first record data storage unit for recording the record data by the collection processing of the first computer in the first auxiliary storage device and the second auxiliary storage device, while the second computer When the computer is determined to be the master, the record data by the collection processing of the second computer is written to the first auxiliary storage device and the second auxiliary storage device. The data processing apparatus characterized by the second recording data storage unit provided in the second computer for. 6. A master that sets one of the first and second record data storage units as a master computer, sets master status, and sets the other as a slave computer and sets slave status. Slave determination means and process data from the process data input device is collected to create recorded data, and when the master / slave determination means sets its own computer to master status, the master status index is displayed. Recording data storage means for additionally recording the recording data in the first auxiliary storage device and the second auxiliary storage device; and the master / slave determination means for setting its own computer to a slave status, and A master storage of data collection timing in the first auxiliary storage device and the second auxiliary storage device. When the recording data of status is unrecorded, the recording data is input from the recording data storage means and the recording data is recorded by adding the slave status index to the first auxiliary storage device and the second auxiliary storage device. 6. The data processing apparatus according to claim 5, further comprising: recording data correction means for performing the above. 7. A process data input device for inputting process data from a plant, a first computer and a second computer for collecting and processing the process data input by the process data input device as record data, and these first and second computers. In a data processing device having a redundant configuration having a first auxiliary storage device and a second auxiliary storage device for recording data recorded by a computer and a second computer, the process data input from the process data input device is collected and processed. The first computer and the second computer are respectively provided with recording data collection means for creating recording data by using the first computer, and when the first computer determines that it is the master, recording data collection of the first computer is performed. When the record data is input from the means, the record data is recorded in the first auxiliary storage device, and the second computer stores the record data. When it is determined that the data,
When the record data is input from the record data collecting means of the second computer, the first data server records the record data in the first auxiliary storage device, and the first computer determines that it is the master. At this time, when record data is input from the record data collecting means of the first computer, the record data is recorded in the second auxiliary storage device, and when the second computer determines that it is the master,
A data processing device, comprising: a second data server for recording the record data in the second auxiliary storage device when the record data is input from the record data collecting means of the second computer. 8. The first server-side master / slave judgment in which the first data server sets master status by setting one of them as a master computer and sets slave status by setting the other as a slave computer. Means and the first server side master / slave determination means sets the first computer as the master status, and when the record data is input from the record data collecting means of the first computer, the record data is recorded. The recording data is stored in the first auxiliary storage device, and the recording data is collected from the recording data collecting unit of the second computer when the second server is set as the master status by the first server-side master-slave determining unit. Is input, first recording data processing means for storing the recording data in the first auxiliary storage device, When one's own data server recovers from the failure, the second
Data recovery means for requesting the data server to transfer the record data from the second auxiliary storage device and storing it in the first auxiliary storage device; and the first server-side master-slave determination means. The first recording data processing means when the self computer is set to the slave status and the recording data of the master status at the data collection timing is not recorded in the first auxiliary storage device and the second auxiliary storage device. And a first server-side record data correction means for recording the record data by inputting the record data from the above and adding a slave status index to the first auxiliary storage device and the second auxiliary storage device. The second data server sets one of the master computers as a master computer and sets the other as a slave computer. And a second server-side master / slave determination means for setting the save status, and a record of the first computer when the first computer is set as the master status by the second server-side master / slave determination means. When the record data is input from the data collecting means, the record data is stored in the second auxiliary storage device, and when the second computer is set as the master status by the second server-side master / slave judging means. When the record data is input from the record data collecting means of the second computer, the second record data processing means for recording the record data in the second auxiliary storage device and its own data server are not damaged. When restored, the first
Second data recovery means for making a request to the data server to transfer the recording data from the first auxiliary storage device and recording it in the second auxiliary storage device, and the second server-side master-slave determination means. The second recording data processing means when the self-computer is set to the slave status and the recording data of the master status at the data collection timing is not recorded in the first auxiliary storage device and the second auxiliary storage device. Second server side record data correction means for recording the record data by inputting the record data from the above and adding the slave status index to the first auxiliary storage device and the second auxiliary storage device. The data processing device according to claim 7, wherein