JPH0433191A - Power failure compensation type time recorder - Google Patents

Abstract

PURPOSE:To improve the efficiency and to contrive the labor saving in a power failure recoverying process by turning off a battery source immediately after saving a processing data to a floppy disk, thereby reducing the power consumption of the battery source at the time of power failure as far as possible and eliminating the uselessness in the duplication of arithmetic process. CONSTITUTION:In the case of recovering from power failure, the calculation is restarted from the next process of the process which has finished the arithmetic process at the time of generating a power failure at first, and all the necessary processes are performed. Here, whether all the arithmetic processes executed after the restart are completed or not is judged, whether file saving to a floppy disk 5T is completed or not is judged, and this process is repeated until the next process is completed in the case of 'NO' (netagive detection).

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention provides a power outage compensation time recorder that is equipped with an external storage system for storing each person's work data on a floppy disk, and is also equipped with a battery backup system for power outage compensation. Regarding.

[Conventional technology]

In an electronic time recorder controlled by a microcomputer, if a power outage occurs during data calculation processing, the data will be destroyed and the system will go down. Conventionally, when a power outage occurs, data processing is interrupted and the power outage is stopped. The occurrence of the power outage is stored in the memory, and when the power is restored, the process that was being executed at the time of the power outage is re-executed from the beginning based on the above power outage information retrieved from the memory, or
By connecting an uninterruptible power supply that operates for a certain period of time even if an external power outage occurs, data destruction due to the power outage is prevented.

However, in the case of the former solution that involves re-execution processing,
Processing that was interrupted when a power outage occurs must be restarted from the beginning when the power is restored, which causes the problem of time-consuming processing and complicated operations; In the case of such solutions, the equipment itself is expensive, and most of them only compensate for the power supply for a certain period of time, and when the compensation time elapses, the system goes down just like when a power outage occurs. It is necessary to design the system so that the calculation process ends at the end of the process, making it very inconvenient to operate and lacking in practicality.

Therefore, in general electronic time recorders, as a countermeasure against power outages, a battery is constantly charged by a power source, and when a power outage occurs, power voltage is supplied from this battery to process data. By adopting a so-called battery backup system that continues the process, the various problems described above at the time of a power outage have been solved.

[Problem to be solved by the invention]

However, among the electronic time recorders mentioned above, the time recorders that write processed data as files to a floppy disk, which is an external storage device, have a lower performance than general electronic time recorders that write files directly to the built-in memory. Since the power consumed when writing a file is extremely large, in a backup system that uses a normal battery, the power supply is turned off until the data processing described above is completed and then the processed data is written to the floppy disk. As a result, it is very difficult to continue to compensate.

There is a problem in that the battery becomes larger and more expensive.

Therefore, the technical problem of the present invention is to perform power failure compensation for a time recorder equipped with a floppy disk (external storage device) without any trouble using a relatively small-capacity and inexpensive battery power source, while also efficiently processing power when the power is restored. The goal is to be able to perform the process smoothly and labor-savingly.

[Means to solve the problem]

The measures taken in the present invention to solve the above technical problems are as follows.

In a time recorder equipped with an external storage system that stores each person's work data on a floppy disk and a battery backup system for power outage compensation, (1) If a power outage is detected during calculation processing, the calculation processing will be performed according to the battery power backup. The apparatus is provided with a power failure processing means for turning off the battery power supply after executing the arithmetic processing up to a good breakable point and saving the arithmetic processing data on the floppy disk.

(2) At the time of power restoration after a power outage, a power restoration processing means is provided which resumes calculation from the next process that was completed by backing up the battery power when the power outage occurred.

[Effect]

The above means works as follows.

■The factor (1) above is that the processing that was being calculated at the time of a power outage can be interrupted without having to run to the end according to battery power backup. Specifically, for example, when processing leaving-the-office data, In the event of a power outage, the system runs up to the ``calculation process for leaving time'' and does not perform the ``calculation process for actual working hours'', so perform the above calculation process and then save the processed data to a floppy disk. In addition, after saving the processed data to the floppy disk, the battery power is immediately turned off to prevent unnecessary power consumption, so it has a relatively small capacity. To enable backup at the time of power outage to be performed smoothly without any trouble using an inexpensive battery power source.

■The factors in (2) above mean that at the time of power restoration (recovery) after a power outage,
When a power outage occurs, the next process that has been completed based on battery power backup, i.e., the above-mentioned leaving data processing, starts reprocessing from the "actual working time calculation process", so the calculation process is delayed. The process is not performed redundantly during a power outage and when the power is restored, so that processing at the time of power restoration can be executed as quickly as possible and with less labor.

As described above, the above-mentioned technical problem can be solved by the above-mentioned means, and the problems of the conventional technology can be solved.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the power failure compensation type time recorder according to the present invention described above will be described in detail below with reference to the accompanying drawings.

FIG. 1 is a perspective view showing an embodiment of a power failure compensation type time recorder according to the present invention, in which 1 is the recorder main body, 1a is a time card (not shown) insertion port, and 2T is a slot for inserting a time card (not shown). A display device that displays the time and other various messages, etc.
3T is a key input device (keyboard), 4T is a buzzer for notifying a power outage, 5 is a storage control device for a floppy disk 5T which is an external storage device, and 5a indicates the disk insertion slot.

FIG. 2 is a block diagram showing the electrical configuration of the power failure compensation type time recorder (time recorder with arithmetic function) according to the present invention described above, and in the figure, 10 is a CPU constituting the center of the control section, This includes the control section 2 of the display 2T, the control section 3 of the key human power device 3T, and the buzzer 4T.
In addition to the control unit 4 for the time card and the storage control device 5, a power supply control unit 6 equipped with a power failure compensation function, a printer control unit 7 for printing on the time card, and detecting insertion of the time card, and A card sensor 8 for reading a personal code etc. recorded on the card is connected to a control unit 9 for a time card conveying motor, and further a memory 11 storing a system program and a clock circuit 12 for transmitting a reference clock signal.
are connected to each other, and each is controlled and operated according to a system program stored in memory 11 under the supervision of CPU10.

Next, FIG. 3 is a block diagram showing the specific configuration of the above-mentioned power supply control unit 6. In the figure, 6T is a 100V power supply, and when a power failure is detected, 13 outputs the detection signal to the CPU10. A power failure detection unit 14 is a constant voltage power supply circuit that operates to maintain a constant load voltage, and 15 is a constant voltage power supply circuit that operates to maintain a constant load voltage.
A power supply switching control circuit 16 switches from the V power supply 6T to the battery power supply 18 according to the power supply 0N10FF control signal sent from the CPU10.
8 is a power cutoff relay that turns off the power source 8 and restores (ON) the 100V power source, and 17 indicates a charging circuit for the battery power source 18. The battery power source 18 described above is configured to always back up the clock circuit 12 in the event of a power outage, so that the clock of the time recorder will not stop under any circumstances.

When the power supply control unit 6 configured as described above detects a power outage, it immediately switches the power source to the battery power supply 18 according to the control signal from the CPU 10, and at the same time executes data processing by the CPU 10 up to a well-defined process that can be interrupted.
Same < Battery power 1 according to the control signal from CPU10
Stop the backup by 18. In addition, when the power is restored, the CPU10 is activated again by the 100V power supply 6T, and the calculation processing is restarted from the next process that was completed according to the backup of the battery power supply 18 when the power was restored. But then,
The steps of each process executed according to the system program in the memory 11 at the time of power outage and power restoration will be explained with reference to the flowcharts of FIGS. 4 and 5.

FIG. 4 shows an interrupt process when a power outage occurs. When a power outage interrupt signal is input, step SO is executed and a power outage detection FLG is turned on.

Further, each process of power outage and power restoration shown in FIG. 5 is executed in the following step order.

Step S1: It is determined whether the current process is a process after power recovery, that is, whether a power failure recovery process is necessary.
If it is determined No (not necessary), proceed to step S2,
If it is determined to be YES (return process), the process advances to step S16.

Step S2: Insert the time card into the card sensor 8
It is determined whether or not a time card has been detected, that is, whether or not a time card has been inserted.If the time card has been inserted, the process advances to step S3.

Step S3: According to the reading of the personal code recorded on the inserted time card, the data of the person concerned is transferred from the floppy disk 5T, which is an external storage device, to the CPU 10.
is called.

Step S4: According to the data read from the floppy disk 5T, employment data, salary data, etc. of the person concerned are processed.

Step S5: It is determined whether or not the power outage detection FLG is on. If YES (power outage), proceed to the next step S6.
If the answer is No (energization), the process advances to step S7.

Step S6: It is determined whether the process currently being calculated can be interrupted, that is, whether there is a good break or not. If it is determined as YES (interruption is possible), the process proceeds to the next step S7, and if No (
If the interruption is not possible), the process returns to step S4 and continues until a suitable break occurs.

Step S7: It is determined whether the process currently being calculated was interrupted midway due to a power outage or was not interrupted at all, and YES (interrupted).
If it is determined that this is the case, the process proceeds to step S8, and if it is determined that the process is No (no interruption), the process proceeds to step Sll.

Step S8: Save the processing contents calculated up to a good point on the floppy disk 5T.

Step S9: It is determined whether the above file saving is completed, and if YES (completed), step S10
If NoC is not completed, this process is repeated until completion.

Step SIO: A control signal for turning off the battery power source is transmitted from the CPU 10 to stop backup by the battery power source 18, and the power outage process is completed.

Step S11: If the processing is not interrupted due to a power outage, all the processed data is saved as is on the floppy disk 5T.

Step S12: After executing the file save, it is determined again whether the power outage detection FLG is ON, and YES is determined.
In the case of (power outage), the process advances to step S13, and in the case of No (power supply), the process advances to step S15.

Step S13: After the power failure is detected, file saving on the floppy disk 5T is continued according to the backup of the battery power supply 18, but in this step, it is determined whether the above file saving is completed or not, and YES (
Completed), proceed to step SL4, and No (not completed).
In this case, this step is repeated until completion.

Step S14: When the file saving on the floppy disk 5T is completed, a control signal to turn off the battery power supply 18 is transmitted from the CPU 10, and the power outage process is completed.

Step S15: Executed when it is determined that there is no power outage (No) in step S12 described above, and it is determined whether or not the file saving on the floppy disk 5T is completed. If YES (completed), the timer After sending the card back, the process returns to step S2 described above to wait for the next time card to be inserted, and if the answer is No (incomplete), this step is repeated until completion.

Step 816: This step is the step S1 described above.
This is executed when it is determined that it is a power outage recovery process, and when the power is restored, the calculation is restarted from the next process of the process that was completed at the time of the power outage, and all necessary processes are performed. .

Step S17: Here, it is determined whether all the calculation processing for the restart executed in step S16 has been completed.
If YES (completed), the time card is sent back and then the process returns to step S2 described above to prepare for inserting the next time card, while if NO (incomplete), the process returns to step 3.
Proceed to step 18.

Step S18: Here, it is determined whether the power outage detection FLG is ON, that is, whether a power outage has been detected, and Y
In the case of ES (detected), the power outage process from step S4 described above is executed again, and in the case of NO (not detected), the process returns to step S17 and is repeated until the next process is completed.

In addition, the area indicated by the symbol T in FIG. 5 is an area where power outage processing is executed.

〔effect〕

The power outage compensation type time recorder according to the present invention is as described above, and when a power outage occurs, it is immediately backed up by a battery power source and can continue arithmetic processing. The process is performed up to a well-defined process that can be interrupted, and the subsequent process continues when the power is restored.However, the battery power is immediately turned off after saving the above process data to a floppy disk, so the battery power is saved during a power outage. Since the power consumption of the power supply can be reduced as much as possible,
It has an extremely economical advantage of being able to perform power outage compensation without any trouble using a small and inexpensive battery power source, and after the power outage is restored, the calculation can be restarted from the next process that completed the calculation process. This, along with the fact that it eliminates the waste of duplicating calculation processing and can quickly and efficiently recover from a power outage, makes it a revolutionary time recorder that stores work data on a floppy disk, which is an external storage device. It is appropriate and suitable.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of the power failure compensation type time recorder according to the present invention, FIG. 2 is a block diagram illustrating its electrical configuration, and FIG. 3 is a detailed explanation of the power supply control section. FIG. 4 is a flowchart illustrating the interrupt processing at the time of power outage, and FIG. 5 is a flowchart illustrating the processing procedure at the time of power outage and power restoration. 1 is the main body of the time recorder, 5 is the storage control device, 5T is the floppy disk, 6 is the power control unit, 6T is 100v
10 is a CPU, 11 is a memory, 13 is a power failure detection section, 15 is a power supply switching control circuit, and 18 is a battery power source.

Claims (1)

[Claims] In a time recorder equipped with an external storage system that stores each person's work data on a floppy disk and a battery backup system for power outage compensation, if a power outage is detected during calculation processing, the battery power backup system is installed. a power outage processing means for turning off the battery power after executing the arithmetic processing up to a good point at which it can be interrupted, and saving the arithmetic processing data on the floppy disk; A power failure compensating time recorder comprising: power restoration processing means for restarting calculation from the next process that has been completed by backing up the battery power supply when the power failure occurs.