JP2004164032A - Time recorder - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a time recorder capable of shortening a receiving processing time by dispensing with execution of receiving processing many times. <P>SOLUTION: This time recorder 1 is constituted to perform a time recording processing on a time card. This time recorder 1 has a receiving frequency storage area for storing a receivable frequency of standard radio wave from standard radio waves having a plurality of frequencies, and at the start of receiving processing of standard radio wave, the receiving is started from the standard radio wave of the frequency stored in the receiving frequency storage area. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a time clock having a function of receiving a standard radio wave.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a "time clock" disclosed in Japanese Patent Application Laid-Open No. 2002-63613 filed by the applicant has been disclosed as a device provided with a function of receiving a standard radio wave.
[0003]
This time clock has a built-in radio timepiece and automatically calibrates the time using a standard radio wave.At the time of calibration, the time is stored in a storage area and can be displayed at any time as a calibration history. From this, the reception success rate at the installation location can be determined. If the number of successful receptions is extremely small, the radio clock is operated accurately by changing to a location with better radio wave conditions. (For example, see Patent Document 1)
[0004]
[Patent Document 1]
JP-A-2002-63613 (paragraphs 0012 and 0013)
[0005]
[Problems to be solved by the invention]
By the way, there are two standard radio waves of 40 kHz output from Fukushima Prefecture and 60 kHz output from Saga Prefecture, and the standard radio waves of these two frequencies can receive standard time in almost all areas of Japan. However, it is not always clear which frequency should be used depending on the region. In addition, since the output of the standard radio wave is small, it may be shaded by a metal panel inside the building, a glass door with a built-in wire mesh may be provided in the window, or the window may be closed by a metal shutter or the like. If it is set, it becomes difficult to receive the standard radio wave, and there is a problem that the standard time cannot be obtained.
[0006]
In the above-described time recorder, since the environment of the installation location of the time recorder is to detect whether or not the environment is suitable for reception, the installation location of the time recorder determines which frequency of 40 kHz or 60 kHz should be used. No function.
[0007]
On the other hand, a device having a function of receiving a standard radio wave (for example, a clock) receives 40 kHz first when using the standard radio waves of the above two frequencies, and when the standard radio wave of 40 kHz cannot be received, Some of them receive a standard radio wave of 60 kHz. Of course, it is also conceivable to receive the standard radio wave of 60 kHz first and then receive the standard radio wave of 40 kHz.
[0008]
However, since this standard radio wave is composed of standard time data of one minute, at least two to three minutes of receiving interval is required to acquire proper standard time data. On the other hand, the time recorder sometimes stops using a large current for accurate radio wave reception when receiving a standard radio wave.
[0009]
For this reason, if this reception operation always starts with the reception of the radio wave of 40 kHz, and then performs the reception of the radio wave of 60 kHz, useless time is spent in the reception process. There is a problem that the stoppage time of the function becomes long, which hinders accurate management of working hours.
[0010]
The present invention has been made in view of such a problem, and at the time of receiving a time signal, shortens the time required for receiving processing as much as possible to prevent working time measurement and recording of time such as going to work and leaving work. The purpose of the present invention is to provide a time clock that cannot be used.
[0011]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, a first time recorder of the present application is a time recorder that performs time recording processing on a time card, and a receiving frequency storage area for storing a frequency of a time signal receivable from a time signal having a plurality of frequencies. It is characterized by having.
[0012]
The second time clock of the present application according to the first aspect of the present invention has a reception start function of reading a receivable frequency stored in a storage area of the reception frequency and starting reception at the time of starting reception of the time signal. It is characterized by the following.
[0013]
A third time recorder according to the present application is a time recorder that performs time recording processing on a time card, and includes a storage area that attempts to receive a time signal having a plurality of frequencies and stores a frequency of a receivable time signal in a readable manner. It is characterized by having.
[0014]
A fourth time recorder according to the present invention is the time recorder according to any one of claims 1 to 3, wherein the reception of the frequency of the receivable time signal is performed at least when the time recording process on the time card is not performed. It is characterized by performing.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a time clock according to an embodiment of the present invention will be described with reference to the drawings.
[0016]
1 and 2, reference numeral 1 denotes a time recorder. The time recorder 1 includes a time recorder main body 2 and a radio wave receiving unit 20.
[0017]
A card insertion slot 3 for inserting a time card (not shown) is provided on an upper surface of the time recorder main body 2. A display unit (display means) 4 for displaying time and the like is provided on an upper part of the front surface of the time recorder main body 2.
[0018]
A holder 10 to which the radio wave receiving unit 20 is detachably attached is attached to the back plate 5 of the time clock main body 2. The radio wave receiving unit 20 includes an antenna 21 for receiving a standard radio wave (a radio wave having a time signal), a time radio wave receiving circuit 22 for detecting time data from the standard radio wave received by the antenna 21, and the like. The antenna 21 is mounted on a housing, and a time radio wave receiving circuit 22 is provided in the housing.
[0019]
In the time recorder main body 2, a card sensor 31 for detecting a time card (not shown) inserted into the card insertion slot 3, a drive motor 32 for drawing the time card inserted into the card insertion slot 3 to a predetermined position, A print head 33 for printing the time on the time card drawn by the drive motor 32, a driver circuit 34 for driving the print head 33, a driver circuit 35 for driving the drive motor 32, a print control program and a time display program , A time management program, and character data for display, a RAM 37 for storing a program and time data read from the ROM 36 at the time of start-up, parameters for processing, and a clock circuit 38 for ticking time. Clock rotation based on the standard time data contained in the standard A control device 39 for displaying the time 38 on the display unit 4 and performing printing control, etc., and a power supply circuit for supplying power to the time radio wave receiving circuit 22, the clock circuit 38, the drivers 34 and 35, the card sensor 31, and the like. 40 etc. are provided. The clock circuit 38 may be constituted by a clock function of a microcomputer of the control device 39.
[0020]
The control device 39 includes a microcomputer and peripheral circuits, and has a print control function, a display function, and a time management function. The power supply circuit 40 has a power supply transformer (not shown). The time radio wave receiving circuit 22 of the radio wave receiving unit 20 and the control device 39 of the time recorder main body 2 are connected by a cable (not shown), and time data detected by the time radio wave receiving circuit 22 is input to the control device 39 via the cable. It has become.
[0021]
The display function is performed by a display program that displays a time, a time card insertion error, and the like. The display program normally has a display function of displaying the date and time held by the clock circuit 38 and displaying an error on the display unit 4 when the time card is improperly inserted.
[0022]
The time management program stores the number of time card insertions and the time of insertion in a working time storage area having a time card ID.
[0023]
The time management program reads out the time of the time recorder 1 possessed by the built-in clock function (the clock circuit 38 in this embodiment) provided in the control device 39 and displays the time on the display unit 4, and converts the standard time data from the standard radio wave. It has a standard radio wave reception management function of reading and rewriting the time data of the built-in clock to the standard time data.
[0024]
The standard radio wave reception management function is performed by a reception processing program. When the reception processing program starts, the time radio wave reception circuit 22 reads the standard time data from the received standard radio wave, shapes the waveform, and transmits the data to the control circuit 39.
[0025]
The control circuit 39 rewrites the internal time data to standard time data.
[0026]
When the reception processing program performs the reception processing, the determination processing of the frequency of the receivable standard radio wave is performed at least when the time recording processing on the time card is not performed.
[0027]
Hereinafter, the processing flow of the reception processing program will be described with reference to FIG.
[0028]
When the reception processing program starts, the frequency of the standard radio wave recorded in the storage area is read (step 1). Next, reception of the standard radio wave of the stored frequency is performed (step 2), and after the reception is determined (step 3), if successful, the reception processing is terminated (step 4).
[0029]
If the reception fails, the standard radio wave of the other frequency is received (step 5). If the reception of the standard radio wave of the other frequency is successfully determined (step 6), the frequency of the standard radio wave is stored in the reception frequency storage area (step 7), and the reception process is terminated (step 8). . If the reception of the standard radio wave of the other frequency fails, the process ends as a reception failure (step 9).
[0030]
The case where a frequency of 40 kHz is stored in the storage area as an initial value will be specifically described as an example.
[0031]
First, a reception frequency of 40 kHz is read from the storage area (step 1), a standard radio wave of 40 kHz is received (step 2), and if the reception is successful, the storage area retains the frequency of 40 kHz and the reception processing ends. (Step 4). Here, if the reception fails, the standard radio wave of 60 kHz is received (step 5). If the reception is successful (step 6), the frequency of 40 kHz in the storage area is replaced with the frequency of 60 kHz and stored (step 7), and the reception is terminated (step 8). Here, if the reception fails, the reception ends while the frequency of 40 kHz is held in the storage area (step 9).
[0032]
In the process of selecting the standard radio wave of the frequency, the potential difference levels of the standard radio waves of a plurality of frequencies are respectively measured, and the measured potential difference levels are transmitted to the control circuit 39 and stored in the RAM 37. Even when the levels of the potential differences of the stored standard radio waves of a plurality of frequencies are compared with each other, the level of the received radio wave having a higher potential difference level is determined as the receivable standard radio frequency (either 40 kHz or 60 kHz). good.
[0033]
In this case, first, it is determined whether or not the reception state of the standard radio wave of 40 kHz is good. If the reception state is good, the frequency of the standard radio wave of 40 kHz is stored in the reception frequency storage area of the ROM 36. If the reception condition of the 40 kHz is determined to be bad, it is determined whether the reception condition of the standard radio wave of 60 kHz is good. If the reception condition of the standard radio wave of 60 kHz is good, the frequency of the standard radio wave of 60 kHz is stored in the storage area of the reception frequency. Is stored. When the reception condition of the standard radio wave of 60 kHz is poor, the voltage levels of the received standard radio wave of 60 kHz and 40 kHz are compared, a frequency having a higher level is selected, and the frequency is stored in the reception frequency storage area. Is also considered.
[0034]
In this embodiment, at least the time recorder 1 that performs time recording processing on a time card has a reception frequency storage area for storing the frequency of a standard radio wave that can be received from a standard radio wave having a plurality of frequencies. At the start of the reception process, reception starts from the standard radio wave of the frequency stored in the reception frequency storage area, so that it is not necessary to perform the reception process many times, and the reception processing time can be reduced.
[0035]
Further, since the process of determining the frequency of the receivable standard radio wave is performed at least when the time recording process on the time card is not performed, time recording such as clock-in / clock-out does not become an obstacle.
[0036]
Note that, as an example of time correction, an example has been described in which time correction is performed by receiving a standard time signal on which a correct time signal is placed, but the present invention is not limited to this, and is within the technical scope of the present invention. Various modifications are possible, and it goes without saying that the present invention extends to those modifications.
[0037]
【The invention's effect】
According to the time recorder according to the first invention of the present application, since the frequency of the receivable standard radio wave is stored, it is not necessary to select the standard radio wave at the time of starting the reception, and the process of receiving the standard radio wave is shortened. It does not hinder the original time management processing of the time recorder.
[0038]
According to the second time recorder of the present application, the reception is started from the stored standard radio wave, so that the reception processing of the standard radio wave can be shortened and does not hinder the original time management processing of the time recorder.
[0039]
According to the third time clock of the present application, even if there are a plurality of standard radio waves, the reception can be started by selecting a receivable standard radio wave at the start of reception, and when the reception fails, another standard radio wave is selected. be able to.
[0040]
According to the time recorder according to the fourth invention of the present application, the reception state is checked when the time recording processing of the time recorder is not performed, so that it does not hinder the measurement of working hours and the recording of time such as going to work or leaving work. can do.
[Brief description of the drawings]
FIG. 1 is a perspective view of a time clock according to an embodiment of the present invention.
FIG. 2 is a block diagram of a time clock according to the embodiment of the present invention.
FIG. 3 is a flowchart of a reception processing step of the time clock according to the embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Time recorder 2 Time recorder main body 3 Card insertion slot 4 Display unit 20 Radio wave receiving unit 21 Antenna 22 Time radio wave receiving circuit 31 Card sensor 36 ROM
37 RAM
38 clock circuit 39 controller 40 power supply circuit

Claims (4)

What is claimed is: 1. A time recorder for performing a time recording process on a time card, comprising a receiving frequency storage area for storing a frequency of a time signal receivable from a time signal having a plurality of frequencies. 2. The time recorder according to claim 1, further comprising: a reception start function for reading a receivable frequency stored in a storage area of the reception frequency and starting reception when the reception of the time signal is started. What is claimed is: 1. A time recorder for performing a time recording process on a time card, comprising a storage area for trying to receive a time signal having a plurality of frequencies and storing a receivable time signal frequency in a readable manner. 4. The time recorder according to claim 1, wherein an attempt to receive a frequency of the receivable time signal is performed at least when time recording processing on a time card is not performed. 5. Time clock to do.

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