JP3790138B2 - Data processing device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a data processing apparatus having a function of collecting and summing up data based on a certain arithmetic processing (or totaling) to another apparatus connected via a communication line and backing it up, for example, merchandise sales The present invention relates to a POS (Point Of Sales) terminal device having a total file that accumulates (or accumulates) sales data based on a registration process.
[0002]
[Prior art]
In a POS system in which a plurality of POS terminal devices are connected via a communication line such as a LAN (Local Area Network), each POS terminal device designates another POS terminal device as a backup device, and the own POS terminal. The totalizer file that stores and stores the sales data of the products registered for sale on the device is sent to another POS terminal device designated as the backup device periodically or whenever the contents (contents) of the totalizer file are updated. The backup was already done. By having such a backup function, when a failure occurs in the totalizer file in its own device, the backup file is read from another POS terminal device designated as the backup destination, and the totalizer file is automatically read. It was possible to restore.
[0003]
However, when the totalizer file fails, the backup file cannot be read because another POS terminal device specified as the backup destination is down or busy, and restoration of the totalizer file has failed. In some cases, conventionally, the use of the POS terminal device has been stopped. Alternatively, if troubles occur when the operation is stopped, the totalizer file is once initialized and then the POS terminal device is restarted.
[0004]
[Problems to be solved by the invention]
As described above, in the conventional data processing apparatus having the function of transferring the totalizer file to another device connected via the communication line and performing the backup, the totalizer file cannot be restored when the totalizer file fails. Then I had to stop using it. In addition, if the totalizer file is failed to be restored and is used continuously, the totalizer file has been initialized. Therefore, the contents of the backup file are manually added to the initialized totalizer file later. The total file has to be restored by reflecting it, and a great deal of labor and cost has been spent on the work of restoring the total file.
[0005]
The present invention has been made based on such circumstances, and the object of the present invention is to continue to use it even if restoration of the totalizer file fails when the totalizer file fails. Therefore, it is not necessary to restore the total file through the network, and it is an object of the present invention to provide a data processing apparatus that can greatly reduce the maintenance cost.
[0006]
[Means for Solving the Problems]
The invention described in claim 1 of the present application transfers a backup of a total file that aggregates data to another device connected via a communication line, and reads a backup file from another device when a failure of the total file is detected. In a data processing apparatus having a function of restoring the totalizer file, if restoration of the totalizer file fails when the totalizer file fails, the restoration fails while executing the data processing after initializing the totalizer file And a means for shifting to the restoration priority mode for monitoring the cancellation of the above factor. In the restoration priority mode, backup processing is not performed until the cause of the restoration failure is removed.When the cause of the restoration failure is removed, the backup file is preferentially read from another device, and the contents of this backup file are read. In the totalizer file Add After the reflection, the priority restoration mode is canceled and the backup process is resumed.
[0007]
The invention according to claim 2 of the present application has means for shifting to the restoration priority mode of the invention of claim 1 above, and when there is a settlement instruction for the totalizer file in the priority restoration mode, the data of the totalizer file Is stored as a provisional settlement file, and then the totalizer file is initialized and provisionally settled. In the priority restoration mode, backup processing is not performed until the cause of the restoration failure is canceled. When the cause of the restoration failure is removed, the backup file is preferentially read from another device and whether or not provisional settlement has been completed. If it has not been provisionally settled, the contents of the backup file are reflected in the totalizer file, then the priority restoration mode is canceled and the backup process is resumed. After reflecting in the settlement file, the settlement process is executed, and after reflecting the contents of the provisional settlement file after settlement in the totalizer file, the priority restoration mode is canceled and the backup process is resumed. .
[0008]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
This embodiment is a case where the present invention is applied to a POS terminal device provided with a totalizer file for collecting and storing sales data.
[0009]
FIG. 1 is an overall view of a POS system using a POS terminal device according to the present invention. The POS system according to the present embodiment includes three POS terminal devices 1A, 1B, 1C and POS terminal devices 1A, 1B. , 1C are connected to a single store computer 2 via a LAN 3 as a communication line. Each of the POS terminal devices 1A, 1B, 1C is a total of the total file 4A, 4B, 4C for summarizing and storing the sales data of each product sold and registered by the own device and the other POS terminal devices. Backup files 5A, 5B, 5C for selectively backing up the contents of the device files 4A, 4B, 4C.
[0010]
In the present embodiment, for convenience of explanation, the backup device of the POS terminal device 1A is the POS terminal device 1B, the backup device of the POS terminal device 1B is the POS terminal device 1C, and the backup device of the POS terminal device 1C is the POS terminal. Let it be apparatus 1A. That is, the total file 4A of the POS terminal device 1A is backed up by the backup file 5B of the POS terminal device 1B, the total file 4B of the POS terminal device 1B is backed up by the backup file 5C of the POS terminal device 1C, and the total of the POS terminal device 1C. The file 4C is backed up with the backup file 5A of the POS terminal device 1A.
[0011]
As shown in FIG. 2, the totalizer files 4A, 4B, and 4C include a day total area 41 for totaling sales data for the current day by item, a grand total area 42 for totaling daily sales data by the same item, and the previous day. The previous day total area 43 for totaling the sales data up to the same item is provided.
[0012]
FIG. 3 is a block diagram showing the main configuration of each POS terminal device 1A, 1B, 1C, and each POS terminal device 1A, 1B, 1C has the same hardware configuration. That is, each POS terminal device 1A, 1B, 1C is composed of a device body 10, a display 11, a keyboard 12, a scanner 13, a printer 14, and a drawer 15.
[0013]
The apparatus main body 10 includes a power supply circuit 101 that supplies power to the apparatus main body 10, the display 11, the keyboard 12, the scanner 13, the printer 14, and the like by supplying the commercial power supply 6. In addition, a CPU (Central Processing Unit) 102 constituting a main control unit, a ROM (Read Only Memory) 103 for storing programs in advance, and a RAM (Random Access) in which various memory areas for storing variable data are formed Memory) 104, clock unit 105 that measures the current date and time, LAN controller 106 that controls data communication performed through the LAN 3, and UPS (Uninterruptible Power Supply) that functions as a backup power source when power supply from the power supply circuit 101 is stopped Power supply device) 107, HDD (Hard Disk Drive) device 108 that stores and saves the totalizer files 4A, 4B, 4C, backup files 5A, 5B, 5C, and the like, and an HDD that controls writing and reading of data to and from this HDD device 108 Driving the controller 109 and the display 11 A display controller 110 that controls and displays characters corresponding to display data, a keyboard interface 111 that electrically connects the keyboard 12, a scanner interface 112 that electrically connects the scanner 13, and the printer 14 electrically A scanner interface 113 to be connected and a drawer interface 114 to electrically connect the drawer 15 are provided. The CPU 102, the ROM 103, the RAM 104, the clock unit 105, the LAN controller 106, the UPS 107, the HDD controller 109, the display controller 110, and the interfaces 111 to 114 of each input / output device are connected by a bus line 115 such as an address bus or a data bus. Connected.
[0014]
As described above, each of the POS terminal devices 1A, 1B, 1C having such a configuration transfers and backs up the total file 4A, 4B, 4C in its own device to another device connected via the LAN 3, and the total device When a failure of the files 4A, 4B, and 4C is detected, the backup files 5A, 5B, and 5C are read from the POS terminal device that is a backup device, and the totalizer files 4A, 4B, and 4C are restored.
[0015]
In addition, if restoration of the total file 4A, 4B, 4C fails when the total file 4A, 4B, 4C fails, a copy of the total file 4A, 4B, 4C is created and saved. Thereafter, the totalizer files 4A, 4B, and 4C are initialized. Thereafter, the processing is shifted to the restoration priority mode for monitoring the cancellation of the cause of the restoration failure while executing the data processing. In this priority restoration mode, if there is a settlement instruction for the totalizer files 4A, 4B, 4C, the data of the totalizer files 4A, 4B, 4C are saved as temporary settlement files, and then the totalizer files 4A, 4B are saved. , 4C is initialized and pre-settled. Further, in this priority restoration mode, the backup process is not performed until the cause of the restoration failure is canceled, and when the cause of the restoration failure is removed, the backup files 5A, 5B, 5C are preferentially read from other devices and temporarily. Judge whether it has been settled. If the provisional payment is not completed, the contents of the backup files 5A, 5B, 5C are reflected in the totalizer files 4A, 4B, 4C, and then the priority restoration mode is canceled and the backup process is resumed. In the case of provisional settlement, the contents of the backup files 5A, 5B, and 5C are reflected in the provisional settlement file, and then the settlement process is executed. Then, the contents of the provisional settlement file after settlement are added to the totalizer files 4A, 4B, and 4C. After being reflected in, the priority restoration mode is canceled and the backup process is resumed.
[0016]
That is, each of the POS terminal devices 1A, 1B, and 1C stores, in the RAM 104, a priority restoration flag storage area M1 that is ON in the priority restoration mode, and a provisional settlement flag storage area M2 that is ON when provisional settlement is completed. A storage area M3 for storing factor information of the restoration failure is formed. Incidentally, the cause information of the restoration failure is “1” when restoration of the total file 4A, 4B, 4C fails due to no response of the other device at the backup destination, and “1” when restoration fails due to busy. “2”, and “3” when restoration fails due to a communication error. Each of the POS terminal devices 1A, 1B, and 1C receives the backup file 5A when the total files 4A, 4B, and 4C to be backed up are transferred from the other POS terminal devices that designate the device as a backup device. , 5B, 5C.
[0017]
Thus, each POS terminal device 1A, 1B, 1C configures a program so that the CPU 102 executes each process shown in the flowcharts of FIGS. Here, the case of the CPU 102 of the POS terminal apparatus 1A will be described, and the CPUs 102 of the other POS terminal apparatuses 1B and 1C execute the same processing as this, and thus description thereof will be omitted.
[0018]
When the CPU 102 of the POS terminal device 1A is started up by the power supply from the power supply circuit 101, the CPU 102 starts the processing shown in the flowchart of FIG. 4 and performs initialization processing of each part as ST (step) 1. By this processing, each storage area M1, M2, M3 of the RAM 104 is cleared.
[0019]
Next, as ST2, the totalizer file 4A is read from the HDD device 108, the checksum of the totalizer file 4A is calculated, and compared with the checksum stored in the totalizer file 4A. As a result, if the checksum calculated as ST3 matches the stored checksum, it is not a checksum error, so the process proceeds to ST10 and business processing as a POS terminal device is started.
[0020]
On the other hand, if the two checksums do not match in ST3, a checksum error occurs. Therefore, the recovery of the backup file 5B is requested via the LAN3 to the other POS terminal device 1B designated as the backup device in ST4. Send a message. In ST5, the totalizer file 4A is stored in the HDD device 108 as a failure totalizer file. In this state, it waits to receive the backup file 5B as ST6.
[0021]
Here, when a backup file 5B is received from another POS terminal device 1B via the LAN 3 within a predetermined time, this backup file 5B is restored as its own totalizer file 4A as ST7. Thereafter, the process proceeds to ST10 and business processing as a POS terminal device is started.
[0022]
On the other hand, when a busy response is received from the POS terminal device 1B as the backup device, the POS terminal device 1B is down and no response is received, or a communication error occurs, the backup file 5B is stored within a predetermined time. If not received, the totalizer file 4A in which the checksum error is abnormal is initialized as ST8. Then, in ST9, the restoration priority flag of the storage area M1 is turned ON, and a transition is made to the restoration priority mode for monitoring the cancellation of the cause of restoration failure while executing the business process as the POS terminal device. Thereafter, the process proceeds to ST10 and business processing as a POS terminal device is started.
[0023]
FIG. 5 is a flowchart showing a main part of the business process as the POS terminal device, and particularly shows a process when the registration mode is selected and a process when the settlement mode is selected. In other words, when the registration mode is selected, the CPU 102 performs product registration by operating the keyboard 12 and the scanner 13 as ST11. When the closing key is input as ST12 and the end of the product registration is declared, the CPU 102 is registered as ST13. The product price settlement process is executed, and a purchase receipt is issued by the printer 14. In ST14, the sales data of the product is added to the day total area 41 and the grand total area 42 of the totalizer file 4A according to the type of registered product, the type of settlement, and the like. Thereafter, if a backup job process described later is started as ST15, the process returns to the start of this POS job process.
[0024]
Further, when the settlement mode is selected instead of the registration mode, the CPU 102 determines whether or not the restoration priority flag of the storage area M1 is turned on as ST16. Here, if the restoration priority flag is not ON, the process proceeds to ST17 and a normal settlement process is executed. That is, the total file 4A is read from the HDD device 108, a current day payment receipt is created based on the contents of the current day total area 41, and printing is issued by the printer 14. After printing, the current day total area 41 of the total file 4A is cleared. In addition, the contents of the total area 42 are copied to the total area 43 on the previous day. When the checkout process is thus completed, the process returns to the start of this POS work process.
[0025]
On the other hand, if the restoration priority flag is ON in ST16, the restoration priority mode is in effect, and the process proceeds to ST18. Then, only the sales data of the products registered during the restoration priority mode is read from the HDD device 108 and stored in the total day area 41, and the provisional settlement receipt is read based on the contents of the total day area 41. And is issued by the printer 14. Next, in ST19, the total file 4A is stored in the HDD device 108 as a provisional settlement file. Further, in ST20, the provisional settlement flag in the storage area M2 is turned on to store that the settlement has been performed during the restoration priority mode. Thereafter, if the totalizer file 4A is re-initialized in ST21, the process returns to the start of this POS business process.
[0026]
FIG. 6 is a flowchart showing a backup job process that is started every time the data in the totalizer file 4A is updated when the registration mode of the POS job process is selected. That is, when starting the backup job process, the CPU 102 first determines whether or not the restoration priority flag of the storage area M1 is ON as ST31. If the restoration priority flag is not ON, the process proceeds to ST42, where normal backup processing, that is, the totalizer file 4A is transmitted to another POS terminal device 1B as a backup device via the LAN 3, and the backup file is sent. If the process of creating 5B is executed, the backup job process is terminated.
[0027]
On the other hand, if the restoration priority flag is ON in ST31, the restoration priority mode is in effect, so the cause of failure in restoring the totalizer file 4A is determined from the factor number stored in the storage area M3 as ST32. Check if the factor has already been removed. If the cause of the restoration failure has not yet been released, the backup of the total file 4A cannot be backed up, and the backup job process is terminated.
[0028]
On the other hand, if it is confirmed in ST32 that the cause of the restoration failure has been canceled, the backup file 5B is transferred via the LAN 3 to the other POS terminal device 1B designated as the backup device in ST33. Send a message requesting recovery. Then, it waits to receive the backup file 5B as ST34.
[0029]
Here, when a busy response is received from the POS terminal device 1B as the backup device, the POS terminal device 1B is down and no response occurs, or a communication error occurs, the backup file 5B is received within a certain time. Cannot be restored, the backup file processing is terminated.
[0030]
If the backup file 5B is received via the LAN 3 from the POS terminal device 1B, which is a backup device, in ST34, it is determined in ST35 whether the provisional settlement flag in the storage area M2 is ON. Here, if the provisional settlement flag is not ON, provisional settlement is not performed during the restoration priority mode, so the process proceeds to ST36, and is received from the POS terminal apparatus 1B, which is a backup apparatus, by ADD function processing described later. The contents of the backup file 5B are reflected in the contents of the totalizer file 4A obtained by collecting the sales data in the restoration priority mode, and the totalizer file 4A is restored. Thereafter, the process proceeds to ST41, and if the restoration priority flag of the storage area M1 is turned off to release the restoration priority mode, the process proceeds to ST42, and a normal backup process is performed on the restored totalizer file 4A. Terminates backup job processing.
[0031]
On the other hand, if the provisional settlement flag is ON in ST35, provisional settlement is performed during the restoration priority mode, so the provisional settlement file is read from the HDD device 108 in ST37. Then, the contents of the backup file 5B received from the POS terminal apparatus 1B as the backup apparatus are reflected in the contents of the provisional settlement file by an ADD function process described later. Next, as ST38, normal settlement processing is executed with the data of the provisional settlement file. That is, a current day payment receipt is created based on the contents of the current day total area 41 and printed by the printer 14. Then, after printing, the current day total area 41 is cleared. In addition, the contents of the total area 42 are copied to the total area 43 on the previous day.
[0032]
Next, the contents of the provisional settlement file after execution of the settlement process are reflected in the contents of the totalizer file 4A by ADD function processing described later as ST39, and the totalizer file 4A is restored. Thereafter, the temporary settlement flag in the storage area is turned off as ST40. If the restoration priority flag of the storage area is turned off in ST41 and the restoration priority mode is released, normal backup processing is executed for the totalizer file 4A restored in ST42, and this backup job processing is terminated. To do.
[0033]
FIG. 7 shows the reflection source file A (a backup file in the processes of ST36 and ST37, a provisional settlement file in the process of ST39) as a reflection destination file B (a totalizer file in the processes of ST36 and ST39, and a provisional settlement file in the process of ST37). It is a flowchart which shows specifically the ADD function process to reflect.
[0034]
That is, when starting the ADD function process, the CPU 102 first initializes the counter N to “0” as ST51. Next, the counter N is incremented by 1 as ST52. Next, as ST53, whether or not the counter N has exceeded the final index number of the reflection source file A is determined. If the counter N does not exceed the final index number of the file A, the data indicated by the index number N of the reflection source file A is set in the variable M as ST54. In ST55, the data of the variable M is added to the data indicated by the index number N of the reflection destination file B and reflected. Thereafter, returning to ST52, the counter N is further incremented by one. If the counter N does not exceed the final index number of file A, the processes of ST54 and ST55 are executed.
[0035]
Thus, the processes of ST54 and ST55 are repeatedly executed until the counter N exceeds the final index number of the file A. That is, the data of the reflection source file A is reflected in the data of the reflection destination file B in units of index numbers. If the counter N exceeds the final index number of the file A, this process is terminated.
[0036]
Thus, in this embodiment, for example, when a failure occurs in the totalizer file 4A of the POS terminal device 1A, the other POS terminal devices 1B designated as backup devices for the POS terminal device 1A Since the data of the totalizer file 4A before the failure occurs is stored as the backup file 5B, a recovery request is made from the POS terminal device 1A to the POS terminal device 1B. As a result, when the backup file 5B is transferred from the request-destination POS terminal apparatus 1B to the request-source POS terminal apparatus 1A, the POS terminal apparatus 1A that has received the backup file 5B has a fault based on the backup file 5B. The totalizer file 4A in the state before occurrence is restored.
[0037]
However, if the POS terminal device 1B as the backup device is down, busy, or a communication error occurs in response to a recovery request from the POS terminal device 1A, the POS in which the totalizer file 4A has failed. The terminal device 1A cannot receive the backup file 5B. In such a case, the operation had to be stopped in the past, but in the present embodiment, in the POS terminal device 1A, the automatic totalizer file 4A is automatically stored in the HDD device 108 as a fault totalizer file. The totalizer file 4A is initialized. Then, the restoration priority flag is turned ON to shift to the restoration priority mode, and the business processing as the POS terminal device can be continuously executed.
[0038]
Therefore, in the POS terminal device 1A that has shifted to the restoration priority mode, only the sales data of the products registered for sale during this mode is tabulated and stored in the totalizer file 4A.
[0039]
Further, in the POS terminal device 1A that has shifted to the restoration priority mode, every time the totalizer file 4A is updated, the backup job process is activated, and it is determined whether or not the failure that caused the restoration failure has been removed. . When the failure is removed, a recovery request is made to the other POS terminal device 1B designated as the backup device. As a result, when the backup file 5B is received, the contents of the backup file 5B are reflected in the totalizer file 4A. At this time, the backup file 5B stores the data of the totalizer file 4A before the failure occurs, and the totalizer file 4A stores the sales data after the failure occurrence, so the contents of the backup file 5B are totalized. The totalizer file 4A can be restored by reflecting it in the calculator file 4A.
[0040]
By the way, in the POS terminal device 1A that has shifted to the restoration priority mode, the daily settlement operation may be executed before the failure that caused the restoration failure is cleared. In such a case, in the POS terminal device 1A, a payment receipt based on the data in the totalizer file 4A, that is, the sales data of the product registered for sale in the restoration priority mode is printed and issued as a provisional payment receipt. Then, the total file 4A is stored in the HDD device 108 as a provisional settlement file. Further, if the provisional settlement flag is turned on and it is stored that provisional settlement has been executed, the totalizer file 4A is initialized. Thereafter, the business processing as the POS terminal device is continued. Therefore, only the sales data of the products registered for sale after provisional settlement is collected in the totalizer file 4A.
[0041]
Here, it is determined whether or not the failure that has caused the restoration failure has been removed. If the failure has been removed, a recovery request is made to the other POS terminal device 1B designated as the backup device. . As a result, when the backup file 5B is received, first, the contents of the backup file 5B are reflected in the provisional settlement file. That is, the contents of the backup file 5B are data of the totalizer file 4A before the failure occurs, and the provisional settlement file is data from the occurrence of the failure until provisional settlement is performed. As a result, the totalizer file 4A at the time of settlement in the absence of a failure is restored. Therefore, the settlement process is executed based on the contents of the provisional settlement file after the data reflection.
[0042]
Thereafter, the contents of the provisional settlement file after settlement are reflected in the current totalizer file 4A. Since the current totalizer file 4A is sales data of products registered for sale after provisional settlement, the contents of the provisional settlement file after settlement are reflected in the current totalizer file 4A so that there is no problem at the present time. The totalizer file 4A is restored.
[0043]
The above operation is the same in the POS terminal devices 1B and 1C.
[0044]
As described above, according to the present embodiment, the backup files 5A, 5B, and 5C cannot be received from the other device designated as the backup device when the totalizer files 4A, 4B, and 4C fail, and the totalizer file 4A. , 4B, 4C even if restoration fails, the POS terminal devices 1A, 1B, 1C can be used continuously, so that the operating rate of the POS terminal devices 1A, 1B, 1C can be improved. When the cause of failure in restoring the total file 4A, 4B, 4C is resolved, the backup files 5A, 5B, 5C are automatically fetched from other devices designated as the backup device, and the contents are read. Since the totalizer files 4A, 4B, and 4C can be restored by reflecting them in the current totalizer files 4A, 4B, and 4C, it is not necessary to manually restore the totalizer file, thereby reducing the maintenance cost. It can be greatly reduced.
[0045]
In the above embodiment, the backup job process is started when the totalizer file is updated. However, the present invention can also be applied to an apparatus that periodically executes the backup job process. Further, although another POS terminal device is designated as the backup device, the store computer 2 connected to the LAN can be designated as the backup device.
[0046]
In addition, the present invention is not limited to the POS terminal device. If the totalizer file for collecting data is transferred to another device connected via a communication line and backed up, and the failure of the totalizer file is detected, The present invention can be applied to all data processing apparatuses having a function of reading a backup file from an apparatus and restoring a total file.
[0047]
【The invention's effect】
As described above in detail, according to the invention described in claim 1 of the present application, it is possible to continue using the totalizer file even if the totalizer file fails in the failure of the totalizer file. Since the totalizer file is automatically restored at the time of cancellation, there is no need to manually restore the totalizer file, and a data processing apparatus that can greatly reduce the maintenance cost can be provided.
[0048]
According to the second aspect of the present invention, the totalizer file is automatically restored when the failure factor of the restoration failure is resolved even if the settlement of the totalizer file is executed in the priority restoration mode. Even if the totalizer file cannot be restored in the event of a failure, it can be used continuously, and a data processing apparatus capable of greatly reducing maintenance costs can be provided.
[Brief description of the drawings]
FIG. 1 is a schematic configuration diagram of a POS system according to an embodiment of the present invention.
FIG. 2 is a diagram showing a main area structure of a totalizer file in the same embodiment.
FIG. 3 is a block diagram showing a main configuration of the POS terminal apparatus according to the embodiment.
FIG. 4 is a flowchart showing a main part of a power-on process executed by the CPU of the POS terminal device according to the embodiment;
FIG. 5 is a flowchart showing a main part of POS business processing executed by the CPU of the POS terminal device according to the embodiment;
FIG. 6 is a flowchart showing the main part of a backup job process executed by the CPU of the POS terminal device according to the embodiment;
FIG. 7 is a flowchart specifically showing an ADD function process executed by the CPU of the POS terminal device according to the embodiment;
[Explanation of symbols]
1A, 1B, 1C ... POS terminal device
2 ... Store computer
3 ... LAN
4A, 4B, 4C ... Total file
5A, 5B, 5C ... backup file
10 ... Main unit
102 ... CPU
103 ... ROM
104 ... RAM
108. HDD device

Claims (2)

Transfer the totalizer file for collecting data to another device connected via a communication line and back it up. When a failure of the totalizer file is detected, the backup file is read from the other device and the totalizer file is restored. In a data processing apparatus having a function,
When restoration of the totalizer file fails when the totalizer file fails, the restoration priority mode is set to monitor the cancellation of the cause of the restoration failure while executing the data processing after initializing the totalizer file. In this restoration priority mode, backup processing is not performed until the cause of the restoration failure is canceled, and when the cause of the restoration failure is removed, the backup file is preferentially read from the other device, and the backup file A data processing apparatus characterized in that after the contents are added to the totalizer file and reflected, the priority restoration mode is canceled and the backup process is resumed. Transfer the totalizer file for collecting data to another device connected via a communication line and back it up. When a failure of the totalizer file is detected, the backup file is read from the other device and the totalizer file is restored. In a data processing apparatus having a function,
When restoration of the totalizer file fails when the totalizer file fails, the restoration priority mode is set to monitor the cancellation of the cause of the restoration failure while executing the data processing after initializing the totalizer file. If there is a settlement command for the totalizer file in this priority restoration mode, the data of the totalizer file is saved as a provisional settlement file, and then the totalizer file is initialized and provisionally settled. In the priority restoration mode, the backup process is not performed until the cause of the restoration failure is canceled. When the cause of the restoration failure is removed, the backup file is preferentially read from the other device and it is determined whether the provisional settlement has been completed. If it is not provisionally settled, the backup file is released after the priority restoration mode is canceled after the contents of the backup file are reflected in the total file. In the case of provisional settlement, the contents of the backup file are reflected in the provisional settlement file and then the settlement process is executed, and then the contents of the provisional settlement file after settlement are reflected in the totalizer file. A data processing apparatus characterized in that the priority restoration mode is canceled later to resume the backup process.

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