JP2503378B2 - clock - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timepiece that operates using a battery as a power source.

[0002]

2. Description of the Related Art As a conventional method for starting a timepiece using a battery as a power source, after the battery is turned on, a crown or a push switch is operated to set the present time to start timekeeping.

[0003]

Therefore, the user has to carry out the troublesome operation of setting the current time with the crown or the like in addition to the battery being inserted at the time of starting the timepiece.

An object of the present invention is to eliminate the troublesome operation at the time of starting the timepiece.

[0005]

SUMMARY OF THE INVENTION According to the present invention, a clock means for clocking the current time using an internal battery as a power source after the clock is timed to the current time before shipment, and a display section for displaying the time by a pointer.
And a counter that counts the value according to the display position of the pointer.
Interface, a detection means for detecting the presence or absence of an external battery, and the above-mentioned detection
After detecting the external battery removal by the output means,
When the inputting of the external battery is detected by the timer means for starting time and the detecting means, the power source of the clocking means is switched to the external battery and the timer means is
If the time set in advance has been measured, once the above
Matching the time displayed by the hand with the count value of the above counter
After taking the time, the current time measured by the above time measuring means
The above- mentioned object is achieved by providing a control means for displaying on the display section .

Then, the time was adjusted to the current time before shipment.
After that, the timekeeping means that measures the current time by using the internal battery as a power source
And the display that displays the time with the pointer, and the table of the pointer above.
The counter for counting the value according to the indicated position, the voltage detecting means for detecting the voltage of the external battery, and the voltage detecting means
A timer hand that starts timing after detecting a voltage below a specified level.
When the voltage detecting means detects a voltage higher than a predetermined level, the power source of the time measuring means is switched to the external battery and the time set by the timer means is finished.
If so, the time indicated by the above guide and the above
After matching with the count value of the
The present time measured is displayed in the display unit, when said voltage detecting means detects a predetermined voltage less than the above switches the supply of the clock means to the internal battery
The above-mentioned object is achieved by providing a control means for stopping the display of the display section .

[0007] In addition, the table measures the current time, and the possible timing means timed by an external timing means, the time by the guidelines
Displayed value and the value corresponding to the display position of the pointer above
Counter, an internal battery serving as a power source for the time measuring means, a detecting means for detecting the presence or absence of an external battery, and the detecting means.
Time after detecting removal of the external battery by means of
The timer means for starting and the external battery as a power source , and when the external battery is turned on, the timer means is preset.
If the time has been measured, the above indication is once displayed.
After matching the time and the count value of the above counter,
The current time being measured by the timekeeping means is displayed on the display section.
The above-mentioned object is achieved by providing a control means for displaying .

Further, the present time is clocked and an external timing device is used.
The time can be adjusted by the steps and the time is displayed by the pointer.
Displayed value and the value corresponding to the display position of the pointer above
Counter and the internal power supply that powers the above-mentioned clocking means.
Pond, detection means for detecting the presence or absence of an external battery, and the above detection
Time after detecting removal of the external battery by means of
When the input of the external battery is detected by the timer means for starting the timer and the detecting means, the power source of the time measuring means is switched to the external battery and the timer means is preliminarily set.
If the time set for the
Match the display time with the count value of the above counter
After taking, above the current time that has been counted by the time counting means
The above-mentioned object is achieved by providing a control means for displaying on the display unit .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be specifically described below based on an embodiment shown in the drawings.

In FIG. 1, reference numeral 1 denotes a timing circuit which constitutes a timing means, for example, from a timing device 2 which is an external timing means at the time of factory shipment, via a time data input terminal 3 and a write signal input terminal 4, respectively. The current time is set by the input current time data and the write signal, and clocking is started. The timing device 2 has a built-in standard clock, and has an output plug for serially transmitting the time data and a plug for transmitting a write signal synchronized with the time data. 5
Is an internal battery that is installed before shipment from the factory and serves as a power source for the clock circuit 1 and a control circuit 12 described later. 6, 7 and 8
Is a diode, and 9 is an external battery mounted by the user. Reference numeral 10 is a voltage detection circuit which constitutes a voltage detection means and detects whether the voltage of the external battery 9 has reached a predetermined value. Reference numeral 11 is a 5-minute timer which constitutes a timer means, and starts a 5-minute down-count when the voltage detection circuit 10 detects a voltage equal to or lower than a predetermined value. Reference numeral 12 is a control circuit which constitutes a control means, and is composed of a CPU, a ROM, a RAM and the like, and controls various operations. A motor drive buffer 13 amplifies the hand movement pulse output from the control circuit 12 to drive the drive motor 14, and drives the drive motor 14 to drive the hour hand 15a and the minute hand 1 of the time display unit 15.
Move 5b. External batteries 9 are used as these power sources.
Is used. Reference numeral 16 denotes a hand position detecting device, which is composed of a photo interrupter or the like, and detects a hole (both not shown) provided in a rotary plate that rotates in conjunction with the hour hand 15a and the minute hand 15b. In this example, the hour hand 15a and the minute hand 15b
The photo interrupter is arranged at a position where the hole provided in the rotary plate reaches when 12:00 is displayed, and an output is generated when the time display unit 15 displays 12:00. Reference numeral 17 denotes a 60-minute minute counter, which counts the hand movement pulse output from the control circuit 12 and measures the display time of the minute hand 15b. The count value is reset every time 60 minutes are counted.

Next, the operation will be described with reference to FIG.

After the timepiece device is assembled in the factory, the internal battery 5 is installed, preferably in the production line, to activate the control circuit 12 and the clock circuit 1 (step 2a). However, since the external battery 9 is not supplied, the drive motor 14 is not driven and the pointers 15a and 15b are not driven.
Is not moved.

Further, the timing device 2 is installed at the final process position of the production line, the plug is brought into contact with the input terminals 3 and 4 of the timepiece device flowing through the production line, and the current time data and the writing signal are written. Is input (steps 2b, 2
c). As a result, the current time is set in the clock circuit 1 by one-touch operation. At this time, the control circuit 12 sets the count value of the 5-minute timer 11 to 0 (step 2).
d). That is, the 5-minute timer is set to a state where counting for 5 minutes is completed. The 5-minute timer 11 is the time display unit 1
The time used as a reference for switching the timing operation of No. 5 is counted.

Now, until the timepiece is shipped in this state and purchased by the user, the timekeeping circuit 1 keeps the current time by the internal timepiece 5.

When the user turns on the external battery 9 having a voltage higher than a predetermined value (step 2e), the voltage detection circuit 10 outputs the detection output to the control circuit 12.

The control circuit 12 judges that the external battery 9 having a voltage equal to or higher than a predetermined voltage has been turned on by the input of this detection output, and switches the power source of the clock circuit 1 or the like to the external battery 9 (step 2f), a 5-minute timer. It is determined whether the count value of 11 is 0 (step 2g).

Since the count value of the 5-minute timer 11 is now set to 0, the routine proceeds to step 2h, where a hand movement pulse is sent to the motor drive buffer 13 until the needle position detection device 16 produces a detection output, and the drive motor 14 is driven. Drive
The hour hand 15a and the minute hand 15b are moved (step 2
h). That is, the display time of the time display unit 15 is set to 12: 0
Initially set to 0.

When the hand position detecting device 16 generates a detection output, that is, when the display time of the time display portion 15 is set to 12:00, the minute counter 17 is reset and the control circuit 12 causes the time counting circuit 1 to operate. Read the clock time,
By comparing the read time with the set 12:00, the time display unit 15 sets the number of hand movement pulses necessary for displaying the time measurement time of the time measurement circuit 1, and outputs the number of hand movement pulses for the set number of pulses. The time display section 15 displays the time measured by the time counting circuit 1 (step 2i). At this time, since the minute counter 17 counts the hand movement pulse after the minute hand 15b displays 0 minute, the display time of the minute hand 15b is timed.

That is, at the time of starting the clock, the user simply turns on the external battery and the time display section 15 displays the current time. Moreover, since the current time is displayed after the display of the time display unit 15 is once set to 12:00, the current time can be accurately displayed.

Hereinafter, while the output of the battery voltage detection circuit 10 is being generated, the clocked time of the clocking circuit 1 is displayed on the time display section 15.

Then, when the external battery 9 is exhausted and its voltage becomes lower than a predetermined value, or when the external battery 9 is taken out for battery replacement, the detection output of the battery voltage detection circuit 10 is stopped (step 2j). ).

The control circuit 12 determines that the external battery 9 cannot be used due to the stop of the detection output, and switches the power source of the clock circuit 1 and the like from the external battery 9 to the internal battery 5 (step 2).
k), the output of the hand movement pulse is stopped, the current time display of the time display unit 15 is stopped (step 2m), and the replacement of the external battery is prompted. That is, when the external battery 9 is taken out or the voltage of the external battery 9 becomes lower than a predetermined value, the internal circuit 5 causes the internal battery 5 to measure the time, and the driving of the time display unit 15 which consumes a large amount of current is stopped. is there. Therefore,
The timing of the timing circuit 1 will continue.

Then, the control circuit 12 sets the time measured by the 5-minute timer 11 to 5 minutes (step 2n), and starts the 5-minute timer 11 (step 2p) to step 2e.
Return to Therefore, the 5-minute timer 11 counts the time from the time when the output of the voltage detection circuit 11 is stopped.

In step 2e, when the external battery 9 having a voltage equal to or higher than the predetermined voltage is turned on, the voltage detection circuit 10 outputs a detection output to the control circuit 12 in the same manner as described above, and the clock circuit 1 is powered by the external battery 9 (Step 2f), it is determined whether the time measured by the 5-minute timer 11 is 5 minutes or more (step 2f).
g).

When the time measured by the 5-minute timer 11 is 0, that is, when the 5-minute timer 11 counts for 5 minutes or more,
The control circuit 12 is not merely a battery replacement, but a time display unit 1
It is determined that the display time of 5 may be deviated from the time of the time counting circuit 1, for example, the hand position may be deviated due to vibration or the like, and the display time of the time display unit 15 is once set to 12: After setting to 00, the time of the clock circuit 1 is set.

When the time measured by the 5-minute timer 11 is not 0, that is, when 5 minutes have not passed since the external battery 9 became unusable, the control circuit 12 judges that the battery is merely replaced and the minute counter 17 The count value is compared with the minute digit of the clock time of the clock circuit 1, and the time display unit 15 displays the clock circuit 1
The number of hand movement pulses required to display the time measurement time is set, the hand movement pulse is output by the set number of pulses, and the time measurement time of the time measurement circuit 1 is displayed on the time display unit 15 (step 2i).

That is, the time correction operation is switched according to the time when the external battery 9 is not turned on.

Thereafter, the same operation as described above is performed.

In the above example, when the voltage of the external battery exceeds a predetermined value, the time display section is operated by using the external battery as a power source. However, when the input of the external battery is detected, the external battery is detected. An example will be described in which the time display unit is operated by using as a power source.

In FIG. 3, reference numeral 18 denotes a closing detection device which constitutes a detecting means. For example, a microswitch provided in the battery case of the external battery 9 is used to press the external battery 9 when the external battery 9 is pressed. Generates a detection output. The components having the same numbers as those in FIG. 1 are the same.

Next, the operation will be described with reference to FIG.

Similar to the above example, when the external battery 9 is turned on after the current time is set in the timing circuit 1 by the external timing device 2 at the time of shipment, the turn-on detection circuit 18 causes the control circuit 1 to turn on.
2 produces a detection output.

The control circuit 12 judges that the external battery 9 has been turned on by the input of this detection output, and switches the power source of the clock circuit 1 from the internal battery 5 to the external battery 9. Thereafter, the time count of the time counting circuit 1 is displayed on the time display unit 15 in the same manner as described above.

When the battery is taken out at this time, the control circuit 12 switches the power source of the clock circuit 1 to the internal battery 5, stops the display of the current time on the time display section 15, and sets the 5-minute timer 11 to 5 minutes. Start timing. Less than,
Operates as above.

In each of the above-mentioned embodiments, the analog display device based on the time hand is used as the time display portion, but the present invention is not limited to this, and the same effect as above can be obtained by using the time display device such as LCD or LED. . However, in this case, the time correction operation as described above is unnecessary, and it is sufficient to display the output of the clock circuit 1 on the time display device by inserting the external battery 9.

In each of the above examples, the voltage detection circuit 10
Alternatively, the time correction operation of the time display unit 15 is switched depending on whether or not 5 minutes have elapsed since the closing detection circuit 18 stopped the output, but this time is not limited to the above, and can be appropriately changed.

[0037]

According to the present invention, the external battery is removed.
Time or when the voltage of the external battery is below the specified value.
If it lasts longer than the desired time, the display time of the pointer and the pointer table
Match with the value of the counter that counts the value according to the indicated position
After the time is taken, the time measured by the time measuring means is displayed on the display.
Can occur while the pointer is stopped for more than the desired time
The position of the pointer will be misaligned due to vibrations, etc.
The value of the external battery
Turned on or displayed when the voltage of the external battery exceeds a specified value
When displaying the time in the department, it is necessary to display the exact time.
It So, for example, after a watch is shipped from the factory,
During the time before the user purchases
It is possible to display the exact time even if the needle position is misaligned.
It becomes Noh.

Moreover, when the user holds the watch, the internal battery is used as a power source and the timekeeping means always keeps track of the present time. Therefore, the user automatically turns on the external battery as the power source. The current time is displayed on the time display section. Therefore, it is possible to eliminate the troublesome time setting at the time of starting the clock.

Further, when the external battery is turned on, the power source of the timekeeping means is switched from the internal battery to the external battery, so that consumption of the internal battery can be suppressed and labor for replacing the internal battery can be reduced.

Further, when the voltage of the external battery becomes equal to or lower than a predetermined value, the display of the time display section is stopped and the power source of the timekeeping means is switched to the internal battery. Therefore, the time can be continuously measured by the time measuring means.

[Brief description of drawings]

FIG. 1 is a block circuit diagram showing an embodiment of the present invention.

FIG. 2 is a flowchart for explaining the operation of FIG.

FIG. 3 is a block circuit diagram showing another embodiment of the present invention.

FIG. 4 is a flowchart for explaining the operation of FIG.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Timing means 2 Timing means 5 Internal battery 9 External battery 10 Voltage detection means 11 Timer means 12 Control means 15 Display section 17 Counter 18 Detection means

Claims (4)

(57) [Claims] 1. A timekeeping means for clocking the current time using an internal battery as a power source after being timed to the current time before shipment, a display section for displaying the time with a pointer, and a value corresponding to the display position of the pointer. Counter to count
When a detection means for detecting the presence or absence of external battery, to detect the removal of the external battery by said detecting means
A timer means for starting counting from when the introduction of the external battery is detected by said detecting means, the power of the time measuring means with switching to the external battery, the count end time which the timer means is preset
If so, the time indicated by the above guide and the above
After matching with the count value of the
A timepiece comprising: a control unit for displaying the current time being measured on the display unit . 2. A timekeeping means for clocking the current time using an internal battery as a power source after being timed to the current time before shipment, a display section for displaying the time with a pointer, and a value corresponding to the display position of the pointer. Counter to count
And a voltage detection means for detecting the voltage of the external battery, and a time measurement after the voltage detection means detects a voltage below a predetermined value.
When the voltage detecting means detects a voltage equal to or higher than a predetermined value, the power source of the clocking means is switched to the external battery ,
The timer means has finished counting the preset time
In this case, once the display time according to the above pointer and the counter
After taking consistency with count value is counted by the time counting means
And that current time is displayed by the display unit, when said voltage detecting means detects a predetermined voltage less than, and control means for stopping the display of the display unit switches the power supply of the clock means to the internal battery A watch characterized by being equipped with. 3. A time counting means capable of timing the current time and timed by an external timing means, a display section for displaying the time with a pointer, and a counter for counting a value corresponding to the display position of the pointer.
An internal battery that serves as a power source for the clocking means, a detecting means for detecting the presence or absence of an external battery, and a detecting means for detecting removal of the external battery.
A timer means for starting counting from the external battery to the power supply, when the external battery is turned on, the upper
If the timer means has finished counting the preset time,
Display, the time displayed by the pointer and the counter
After taking consistency with cement values, it is counted by the time counting means
A timepiece having a control means for displaying the present time on the display unit . 4. A time counting means capable of timing the current time and timed by an external timing means, a display section for displaying the time with a pointer, and a counter for counting a value corresponding to the display position of the pointer.
An internal battery that serves as a power source for the clocking means, a detecting means for detecting the presence or absence of an external battery, and a detecting means for detecting the removal of the external battery.
A timer means for starting counting from when the introduction of the external battery is detected by said detecting means, the power of the time measuring means with switching to the external battery, the count end time which the timer means is preset
If so, the time indicated by the above guide and the above
After matching with the count value of the
A timepiece comprising: a control unit for displaying the current time being measured on the display unit .