JP3279862B2 - Time recorder with time change check function - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is used in the technical field of a time clock for managing employment (time management) based on the date and time of an internal clock. This is a time recorder with a time change check function that is devised so that if the time is changed and the attendance data is entered at a time different from the original time, the fact of this time change can be accurately checked and recorded. is there.

[0002]

2. Description of the Related Art In a conventional time recorder, a key switch (key hole) for mode switching is provided on an airframe as disclosed in, for example, Japanese Patent Application Laid-Open No. 4-10093, and a special key is inserted into this key switch. When the internal clock is set to the time setting mode, the internal clock can be set and operated.Therefore, only the administrator with a dedicated key can change the date and time of the internal clock, and cannot be changed by ordinary people. ing.

For those who have forgotten to enter the time required for attendance management, a key switch for mode switching is provided in the same manner as the above-mentioned time recorder, as seen in Japanese Utility Model Application Laid-Open No. 63-155573. It is configured such that the administrator can input the correction data without changing the time of the internal clock by inputting the time of entering and leaving the work with numerical keys in accordance with the data correction operation mode using a dedicated key. .

[0004] However, the problem is that a general person steals a special key possessed by an administrator to create a key, changes the time of an internal clock arbitrarily when inputting daily attendance data, and incorrectly inputs a time card. In addition, for those who have been fraudulent by the administrator himself, for example, who are late and did not intentionally enter a work time, the time of the internal clock is not delayed without using the data correction operation mode. After that, there was also a case where a person's time card was inserted and the work time was incorrectly entered.

[0005] As disclosed in Japanese Patent Application Laid-Open No. 1-150993, it is conceivable to prevent the key from being illegally used by changing the time of an internal clock only after inputting a password. However, if the security code is not provided to the manager, the correction of the error of the internal clock cannot be left to the manager, which is troublesome for the manager and significantly increases the burden. If this password is given to the administrator, unauthorized input by the administrator described above is expected. In any case, it is impossible to completely prevent unauthorized correction of the internal clock. Was desired.

Accordingly, the present applicant has filed a Japanese Patent Application No. 5-238.
According to the application of No. 865, the difference between the current date and time of the internal clock and the absolute date and time is stored in the data memory as the date and time difference.
When the date and time of the internal clock is changed, an absolute date and time is obtained from the date and time before the change and the date and time stored in the data memory, and the difference between the date and time after the change and this absolute date and time is calculated as a new date and time difference. And stored in the above data memory as
Each time attendance data is input, the date and time difference stored in the data memory is checked, and if the absolute value of the date and time difference is equal to or greater than a preset reference time, a record of time tampering is recorded. A time management device with a time tampering check function has been developed.

However, the time management device with a time tampering check function according to the above-mentioned application has a configuration in which the time is tampered, that is, the time is changed only when the absolute value of the date and time difference is equal to or greater than a preset reference time. Therefore, a time change of less than the reference time (for example, less than 5 minutes) cannot be detected.

On the other hand, according to the invention described in claim 1 of Japanese Patent Application No. 5-326326, filed by the present applicant, in accordance with the accumulated error of the internal clock from the time of time setting, The time change can be detected by changing the reference time in a range of 1 to 5 minutes. According to the invention described in claim 3, the time difference can be detected by focusing on the time difference between the absolute date and time and the internal clock. Since the +/- polarity of the time difference is different between the time of falsification and the time when the time is restored, or the absolute value is small, the time change of the reference time can also be detected. It is now possible to detect minute time changes.

[0009]

However, according to the invention described in claim 1 of the above-mentioned application, the time change of the internal clock is discriminated whether the time change is a correction of the accumulated error or the time is falsified. Since the reference time to be considered changes with time according to the accumulated error of the internal clock, it is not always possible to accurately detect a one-minute time change. Has to be corrected frequently.

Further, according to the invention described in claim 3 of the above-mentioned application, after the time is changed, detection is performed only when the time is returned to the original time. Therefore, a change mark (falsification mark) is added to the time card immediately after the time is changed. There was a frustration that could not be warned by printing.

[0011] In addition, from a user (monitor) who has been experimentally used, if a minute time change is several minutes, it may be an error correction of the internal clock, or an intentional change. However, in order to use it as a change history of the internal clock,
Anyway, there was a strong request that some kind of record be recorded regarding the time data entry after the change.

Further, in the case of the time management device according to the above-mentioned application, various complicated processing procedures must be performed between the time when the internal clock is changed and the time when the time falsification is recorded. However, there was an economic problem in that it was very complicated and development costs were high.

Therefore, a technical problem of the present invention is to minimize the influence of an error in the internal clock and to always detect a time change even in the minimum unit of time (for example, one minute) in work management. However, when a time change is detected, a record is left on the spot, and the configuration of the entire system is relatively simplified.

[0014]

Means taken by the present invention to solve the above-mentioned technical problems are as follows.

In a time recorder for performing time management based on the date and time of an internal clock, a reference internal clock having relatively high accuracy and a reference internal clock equivalent to or
The internal clock for time and attendance with a lower accuracy and having the function of determining the clock time and the clock out time, and the time difference between the internal clock for reference and the internal clock for time each time the time data is input. Date and time difference calculating means for calculating the time difference, and a date and time difference determining means for determining whether or not the absolute value of the date and time difference is greater than or equal to a reference time, and a time change for recording a time change when the date and time difference is greater than or equal to the reference time Recording means.

[0016]

According to the above-mentioned means, two internal clocks are provided in the time clock, and at least one of the internal clocks (corresponding to the date and time in the world) is used as a reference internal clock with relatively high accuracy. Since the date and time difference is calculated based on the date and time of the reference internal clock to determine whether or not the time has been changed, it is possible to minimize the influence of the error of the internal clock.

Therefore, the error of the other internal clock for attendance is
It may be adjusted several times a year in accordance with one of the internal clocks for reference, and the reference time of the date and time difference is the minimum unit of time (1 minute)
Even if it is set to, the time change record can be regarded as time falsification without omission in practical use.

Furthermore, since the time change of the internal clock for time and attendance is detected from the date and time difference from the internal clock for time and attendance based on the internal clock for reference, the time change is accurately recorded by an extremely simple system configuration. Enable.

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

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the above-described time recorder with a time change check function according to the present invention will be described below in detail with reference to the accompanying drawings.

FIG. 1 is a perspective view showing the appearance of a time recorder with a time change check function according to the present invention. In this drawing, reference numeral 1 denotes an electronic time recorder, and 1a denotes a time card as shown in FIG. 2 is a display for displaying the current date and time, etc., and the numeral 3 generally designates a numeric keypad 3a, a work key 3b which is turned on at the time of work, and a work key which is turned on at the time of work. A keyboard 4a and 4b are provided on the attendance key 3b and the leaving key 3c. The keyboard includes a key 3c and a key hole 3d dedicated to mode switching. 2) and switching to the time setting mode, the date and time of the internal clock 8 shown in FIG. 2 can be freely adjusted.

FIG. 2 is a block diagram illustrating the electrical configuration of the time clock 1 described above. A BUS 9 connected to a CPU 5 serving as the center of a control unit includes a ROM 6 storing a system program and a reference time, and a date and time difference. Or a data memory RAM 7 for storing time falsification records and the like to be described later.
And a reference internal clock 8A having relatively high accuracy, and an internal clock 8B for attendance having the same or lower accuracy as the reference internal clock and capable of determining each time of clock-out. And an interface circuit 10. The interface circuit 10 further includes a display lamp 4 in addition to the display 2 and the keyboard 3 described above.
a, a lamp 4 of a key including 4a, a printing device 11 for printing work data, a time change mark, a change history, etc.
And a sounding device 12 for generating various notes and communication items as required, and each of them is configured to be controlled and operated according to a system program stored in the ROM 6 under the monitoring of the CPU 5. ing.

As shown in the principle explanatory diagram shown in FIG. 9, the time clock 1 constructed as described above has the date of the reference internal clock 8A and the internal clock 8B for attendance each time the attendance data is input. "Time difference calculating means" for calculating the time difference, and the absolute value of the time difference is a reference time (for example, 1 minute)
A “date / time difference determining unit” that determines whether or not the above is the case, and a “time changing unit” that records a time change when the date / time difference is equal to or longer than the reference time are provided.

FIGS. 3 and 4 show that the exclusive key is inserted into the key hole 3d and the mode is switched to the time setting mode, whereby the internal clock 8A for reference and the internal clock 8B for attendance according to the program stored in the ROM 6. FIG. 9 is a flowchart illustrating a processing procedure for setting a date and time,
When the date and time to be corrected in each of the first steps S1 and S3 is entered using the numeric keypad 3a, the next step S
2 and S4, the input date and time are set to the respective internal clocks 8
A and 8B are set to complete the processing.

When setting the date and time of the internal clock,
Generally, each administrator can set the internal clock for time and attendance 8B, whereas if only the manager can set the internal clock for reference 8A, fairness can be maintained.

Next, the processing operation of the time clock according to the present invention at the time of leaving / working will be described with reference to the flowchart shown in FIG.

In the first step S10, it is determined whether or not the processing is a work-in / out process by turning on the work-in key 3b or the work-out key 3c. Then, in step S11, when the time card TC is inserted into the time recorder 1, step S12 is performed. , The current time is obtained from the internal clock for time and attendance 8B, and the current time is set in the next step S13 for the print data (work data or leaving data) to be printed, and in the next step S14 the internal clock for reference is set. After reading the date and time of 8A, the process proceeds to the next step S15.

In step S15, a date and time difference is obtained from the respective dates and times of the reference internal clock 8A and the attendance internal clock 8B. Then, the process proceeds to step S16, where the absolute value of the date and time difference is set to a reference time (for example, one minute). It is determined whether or not the above is the case. If the time is equal to or longer than the reference time, the process proceeds to step S17. If the time is within the reference time, the process proceeds to step S22.

In step S17, a falsification mark M (see FIG. 6) is added to the print data of attendance or leaving work to be printed on the time card TC, and then the process proceeds to step S18, where the absolute time MH is added to the print data. (See FIG. 6.) That is, the current time of the reference internal clock 8A is added, and the process proceeds to the next step S19.

In step S19, the print column position of the inserted time card TC is obtained. Then, the flow advances to step S20 to print the above-described print data in a predetermined print column of the time card TC as shown in FIG. Step S21
To discharge the time card TC into the card pocket 1a and finish the process.

In the embodiment shown in FIG. 6, the "@" mark is printed as the falsification mark M, but this mark is an example of the embodiment, and for example, as shown in FIG. On the other hand, a special colon mark Ma in which three dots are printed, one more than the normal colon mark Mb, is printed, and the typeface and size of the print data Ra are printed in a state different from the normal state. And the form is arbitrary.

On the other hand, in the above-mentioned step S22, the type of irregular work of late, early retirement, and overtime is determined. If it is determined in the next step S23 that it is one of late, early retirement, or overtime, the next In step S24, the irregular print of the type of irregular work thus determined is added to the print data, and the process proceeds to step S19 described above. If it is determined that neither late, early retirement, or overtime work is performed, the process proceeds to step S19. To print data on the time card TC.

FIG. 7 shows an example of the time change in Table X. The start time = 9: 00, and the point (a) is a normal time when the internal clock 8B for attendance is not changed. The date and time of internal clocks for attendance and reference are 9:
At 3200, the date / time difference is “0” and the fact of time falsification is naturally “none”.

However, if the time and attendance internal clock 8B is improperly changed to 8: 5900 ″ as shown at point (b) at this time, the date and time of the reference internal clock 8A is 9: 320.
Since the time difference is -33 minutes, which is much longer than the reference time of 1 minute since the time difference is -0 ", when the attendance data is input in this state, it is determined that the time has changed, and the time is changed as shown in FIG. The change mark M is printed together with the time data Ra on the print field on the 14th day of the card TC, and the time of the reference internal clock 8A is also printed as the absolute date and time MH.

Further, the determination of the time change is continued as long as the internal clock for time and attendance 8B is returned to the original time or until a preset time monitoring time (for example, 8 hours) has passed. For example, even if attendance data is input at a point (8: 5906 ″) at a point (c) six seconds after the point (b), the date and time of the reference internal clock 8A is 9:32.
06 ", and the date and time difference is also -33 minutes, so that the change mark M and the absolute date and time MH are printed together in the time data Ra in the same manner as in the printing at the point (b), indicating that the time has been changed. Make it checkable.

When the attendance data is advanced by moving the internal clock for attendance 8B at point (c) to the time 9: 3300 "at point (d) and inputting attendance data, the date and time 9:32 06" of the internal clock 8A for reference is entered. Is +54 seconds, which is within the range of the reference time (1 minute). Thereafter, the change mark M and the absolute date and time MH are not printed and the time data Ra
Alternatively, only the printing of Rb is performed.

In FIG. 6, Rb is a time change mark M
And time data at the time of leaving the office, which is printed with the absolute time MH.

[0038]

As described above, according to the time clock with the time change check function according to the present invention, in addition to the internal clock for attendance which determines the clock-in and clock-out time, the internal clock for reference which has a relatively high accuracy. The time difference is calculated based on the date and time based on the date and time of the reference internal clock, and when the absolute value of the date and time difference exceeds the reference time, the time change is recorded. The effect of the clock error is minimized, for example, a minute time change of one minute can be detected properly, and the change history of the internal clock can be added to the daily attendance data itself and recorded. It can help prevent time falsification and help to discipline employee work.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a time clock with a time change check function according to the present invention.

FIG. 2 is a block diagram showing an electrical configuration of the time clock shown in FIG.

FIG. 3 is a flowchart illustrating a procedure for setting a time for a reference internal clock.

FIG. 4 is a flowchart illustrating a procedure for setting a time on an internal clock for attendance.

FIG. 5 is a flowchart illustrating a processing procedure for performing an input operation of time and attendance data using the time clock according to the present invention.

FIG. 6 is a front view showing a part of a time card printed by the present invention.

FIG. 7 is a configuration diagram showing an example of a time change in a table.

FIG. 8 is a configuration diagram showing an embodiment of a time change mark.

FIG. 9 is a principle explanatory diagram for explaining a function of a time clock with a time change check function according to the present invention.

[Explanation of symbols]

 1 Time Recorder 7 RAM (Data Memory) 8A Internal Clock for Reference 8B Internal Clock for Attendance TC Time Card Ra Time Data M Time Change Mark MH Absolute Date

Claims (1)

(57) [Claims] In a time recorder for performing time management based on the date and time of an internal clock, a reference internal clock having relatively high accuracy and an accuracy equal to or lower than the internal clock for reference are provided. The internal clock for time and attendance and the function to determine the time of leaving the office, and the time difference calculation for calculating the date and time difference between the internal clock for reference and the internal clock for time each time the time data is input Means, date and time difference determining means for determining whether the absolute value of the date and time difference is equal to or greater than a reference time, and time change recording means for recording a time change when the date and time difference is equal to or greater than the reference time. A time recorder with a time change check function.