JP2014119437A - Electronic apparatus with power generating function, and control method of electronic apparatus with power generating function - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electronic apparatus with power generating function that can properly adjust operation duration time according to a voltage of power storage means when charging is detected, and improve the convenience.SOLUTION: The electronic apparatus comprises, power generation means 4, a secondary battery 7, an apparatus, charging detection means 6, battery voltage detection means 71, and time display control means 14. The time display control means 14 includes an operation shutdown section 141, an operation resumption section 142, a timer 143, a duration time display control section 145, and a timer updating section 146. The timer updating section 146 updates residual time of the timer 143 to be operation duration time according to a detection voltage when the operation duration time according to the detection voltage detected by the battery voltage detection means 71 is longer than the residual time of the timer 143 in operation, and operates the timer in operation 143 as it does when the operation duration time according to the detection voltage is equal to or shorter than the residual time of the timer 143 in operation.

Description

  The present invention relates to an electronic device with a power generation function and a method for controlling an electronic device with a power generation function.

Watches with a power generation function have come to be widely used because they have the advantage of not requiring battery replacement.
In an electronic timepiece with a power generation function, the electric power generated by the power generation means is used by charging the power storage means. Therefore, when power is not generated, the pointer is moved using the electric power stored in the power storage means.

  In such an electronic timepiece with a power generation function, when the voltage of the power storage means is low, the timepiece movement is stopped, and when the power generation state is detected when the movement is stopped, the initial voltage at that time is detected, and the initial voltage is set in advance. In the case where the voltage is higher than the set operation restart voltage, there has been known one that improves convenience by continuing to move the hand for a predetermined time even when power generation is stopped thereafter (Patent Document 1). reference).

JP 2011-149848 A

In Patent Document 1, when the voltage of the power storage means when a predetermined time elapses is higher than the initial voltage, the operation moves to normal operation, and when the voltage is lower than the initial voltage, the operation is stopped. For this reason, even when the voltage of the power storage means is relatively high when the predetermined time has elapsed and the operation can be continued, the operation is stopped when the voltage drops below the initial voltage.
This is advantageous in that wasteful power consumption can be suppressed when a watch is not used. However, when a watch is used, it is necessary to increase the voltage of the storage means by power generation. It may be reduced.

  The present invention provides an electronic device with a power generation function and a method for controlling the electronic device with a power generation function, which can appropriately adjust the operation duration according to the voltage of the power storage means at the time of charge detection and can improve convenience. Objective.

  The present invention includes a power generation unit, a power storage unit that stores electrical energy generated by the power generation unit, a device that is operated with the electrical energy stored in the power storage unit, and a power generator to the power storage unit. Charge detection means for detecting the state of charge, voltage detection means for detecting the voltage of the power storage means, display operation means for instructing display of the operation duration of the apparatus, and duration for displaying the operation duration of the apparatus A display unit, and an operation control unit that controls the operation state of the device, wherein the operation control unit includes an operation stop unit that controls the device to an operation stop state, and the device is in an operation stop state. An operation resuming unit for resuming operation of the apparatus, and a duration display control unit for operating the duration display unit to display the operation duration when the display operation unit is operated, A timer that counts the remaining time of the operation duration, and a timer update unit that updates the remaining time of the timer when the state of charge is detected by the charge detection means during the operation of the timer, and restarts the operation When the detected voltage detected by the voltage detection means is larger than the operation restart voltage when the charge detection means detects the state of charge, the unit restarts the operation of the device and responds to the detection voltage The operation duration is set to activate the timer, and the operation stop unit controls the device to be in an operation stop state when the remaining time of the timer becomes 0, and the duration display control unit When the display operation means is operated, the operation duration corresponding to the detected voltage detected by the voltage detection means is displayed by the duration display means, and the operation duration is set and the operation duration is set. The timer updating unit operates the timer remaining time when the operation duration according to the detected voltage detected by the voltage detecting unit is longer than the remaining time of the operating timer. Update to the operation duration according to the detected voltage, and if the operation duration according to the detection voltage is less than or equal to the remaining time of the operating timer, the operating timer is operated as it is .

According to the present invention, since the duration display control unit and the timer update unit are provided, it is possible to appropriately display the operation duration and to stop the operation in a time shorter than the displayed duration. When the state of charge is detected, the operation duration can be appropriately adjusted according to the detected voltage, and convenience can be improved.
That is, when the display operation unit is operated, the operation duration corresponding to the detected voltage detected by the voltage detection unit is displayed by the duration display unit. For this reason, when the user wants to check the operation duration, the operation duration can be appropriately displayed based on the stored voltage at that time.
In addition, since the timer update unit is executed only when the charging state is detected, the timer is not updated with the storage voltage when the charging state is not detected as in the case where the electronic device is not used. Further, it is possible to prevent unnecessary power consumption by continuing operation for the set duration or longer. For this reason, it is possible to prevent the voltage of the power storage means from dropping below the operation restart voltage when the operation is stopped, and the operation can be started immediately when the operation is restarted, thereby improving convenience.
Furthermore, the timer update unit updates the timer only when the operation duration based on the detected voltage is longer than the remaining time of the active timer, thus preventing the operation from stopping in a shorter time than the displayed duration This can improve convenience.

  In the present invention, the operation duration is set for each of a plurality of voltage ranges divided in advance, and the operation duration according to the detected voltage is an operation duration set in the voltage range to which the detected voltage corresponds. Preferably there is.

When setting the operation duration according to the detection voltage, if you set multiple voltage ranges and set the operation duration according to the voltage range, you can simply determine which voltage range the detection voltage corresponds to Since the operation duration can be set, it can be easily controlled.
Moreover, since the set operation duration can be suppressed to about 3 to 4 types, it can also be displayed by performing different hands using a second hand or the like without providing a dedicated duration display means. .

  In the present invention, the timer includes a plurality of timers corresponding to the plurality of voltage ranges, and corresponds to a voltage range in which the detected voltage is included when setting an operation duration according to the detected voltage. It is preferable to set the operation duration by combining a timer that performs the operation and a timer that corresponds to a voltage range lower than the voltage range.

The timer is provided in one-to-one correspondence with the voltage range. For this reason, for example, when the first, second, third, and fourth voltage ranges in which the voltage sequentially increases are set, the first, second, third, and fourth corresponding to each voltage range. The four timers are set.
When the detected voltage falls within the third voltage range, the third timer is operated in combination with the first and second timers corresponding to the first and second voltage ranges that are lower than the third voltage range. Set the duration. In this case, if the first timer is for 1 day, the second timer is for 6 days, and the third timer is for measuring the time for 23 days, the operation duration of 30 days in total by the first to third timers. Is set.
By preparing a plurality of timers in this way and setting the operation duration by linking them, the design structure of the timer can be simplified compared to the case where only one timer is provided and a different operation duration is set. .

  In the present invention, the timer includes a timer that counts the remaining time in the normal operation mode, and a timer that counts the remaining time in the BLD operation mode that warns of a low voltage state. When the remaining time of the timer that counts the remaining time reaches 0 hour, the device is operated in the BLD operation mode, and the operation stop unit counts the remaining time of the timer that counts the remaining time in the BLD operation mode to 0 hour. In such a case, it is preferable to control the apparatus to a shutdown state.

  If the BLD operation mode is provided, when the remaining operation duration becomes 0 hour, the operation is not stopped suddenly, but the user is warned that the voltage of the power storage means has decreased. Then you can stop driving. For this reason, the user can also prevent the operation stop by performing the power generation operation by the power generation means, and the convenience can be improved.

  In the present invention, the device is time display means for displaying time, and the operation control means operates the timer even when the time display state for correcting the time displayed by the time display means is entered. It is preferable to continue.

  According to the present invention, even when the electronic device is left in the time correction state, the timer continues to operate, and the operation is stopped when the duration becomes 0, so that the voltage of the power storage means is significantly reduced. Can be prevented.

The present invention includes a power generation unit, a power storage unit that stores electrical energy generated by the power generation unit, a device that is operated with the electrical energy stored in the power storage unit, and a power generator to the power storage unit. Charge detection means for detecting the state of charge, voltage detection means for detecting the voltage of the power storage means, display operation means for instructing display of the operation duration of the apparatus, and duration for displaying the operation duration of the apparatus A control method for an electronic device with a power generation function comprising a display means and an operation control means for controlling the operation state of the device, the operation control means comprising a timer for measuring the remaining time of the operation duration, When the display operation means is operated, the operation duration corresponding to the detected voltage detected by the voltage detection means is displayed by the duration display means, and the operation duration When the operation duration time corresponding to the detected voltage detected by the voltage detecting means is longer than the remaining time of the operating timer, A timer for updating the remaining time to an operation duration corresponding to the detected voltage, and operating the operating timer as it is when the operation duration corresponding to the detected voltage is less than or equal to the remaining time of the operating timer An update process, an operation stop process for controlling the apparatus to an operation stop state when the remaining time of the timer becomes zero, and a voltage detection means that detects the charge state when the charge detection means detects the charge state. If the detected voltage is higher than the operation restart voltage, the operation of the device is restarted, the operation duration is set according to the detected voltage, and the timer is activated. And executes processing and, the.
According to this invention, there can exist the same effect as the said electronic device with a power generation function.

The block diagram which shows the structure of the electronic timepiece with an electric power generation function in embodiment. The circuit block diagram of the electronic timepiece in the embodiment. The figure which shows the dial part of the electronic timepiece in the said embodiment. The figure which shows the structure of the electric power generation means in the said embodiment. The graph which shows the relationship between the voltage of a secondary battery, and duration. The flowchart which shows the process of the operation stop mode in the said embodiment. The flowchart which shows the process of the normal operation mode in the said embodiment. The flowchart which shows the timer update process in the said embodiment. The flowchart which shows the duration display process in the said embodiment. The flowchart which shows the process of the BLD operation mode in the said embodiment.

Hereinafter, an embodiment in which an electronic device with a power generation function of the present invention is applied to an electronic timepiece 1 will be described with reference to the drawings.
[Overall configuration of electronic watch]
As shown in FIG. 1, the electronic timepiece 1 includes a rotary weight 2, a crown 3, a power generation means 4, a rectification means 5, a charge detection means 6, a secondary battery 7 as a power storage means, a button 8 as a display operation means, An oscillating means 12, a frequency dividing means 13, a time display control means 14 which is an operation control means, a time display motor driving means 15, and a time display motor 16 are provided.
The electronic timepiece 1 further includes battery voltage detection means 71 that is voltage detection means for detecting the voltage of the secondary battery 7.

Here, as shown in the hardware configuration diagram of FIG. 2, the charge detection means (charge detection circuit) 6, the frequency division means (frequency division circuit) 13, the motor drive means (motor control circuit) 15, the battery voltage detection means. The (battery voltage detection circuit) 71 is connected to a control circuit (control means) 101 composed of a logic IC (Integrated Circuit). The control circuit 101 implements the time display control means 14.
Instead of the logic IC, a central processing unit (CPU), a read only memory (ROM), a random access memory (RAM), or the like may be provided. In this case, the time display control means 14 can be realized by executing predetermined software using a CPU, ROM, and RAM.

As shown in FIG. 3, the electronic timepiece 1 includes a time display hand 20 including an hour hand 21, a minute hand 22, and a second hand 23, and the time display hand 20 is driven by the time display motor 16.
A window 241 is formed at the 3 o'clock position of the dial 24, and the date can be displayed by a date wheel disposed on the back surface of the dial 24. The date dial is linked to the time display motor 16.

  The electronic timepiece 1 configured as described above includes the oscillating means 12, the frequency dividing means 13, and the time display control means 14, and constitutes a time measuring control means. A time display motor driving means 15 and a time display motor 16 are provided. The time display means includes the time display hand 20. And this time display means comprises the apparatus which becomes the object of operation control in the present invention.

The time display motor driving means 15, the time display motor 16, and the second hand 23 constitute a duration display means. That is, the duration display means displays the operation duration (hereinafter, may be abbreviated as duration) by the operation of the second hand 23.
The time display control unit 14 includes an operation stop unit 141 that stops the operation of the time display unit (device), an operation resumption unit 142 that restarts the operation, and a time set by using a reference signal from the frequency dividing unit 13. A timer (counter) 143 for measuring the time, a duration display control unit 145 for controlling the display of the duration by controlling the driving of the second hand 23, and a timer update unit 146 for updating the remaining time of the timer 143. .

[Power generation means]
As shown in FIG. 4, the power generation means 4 is configured to perform automatic winding power generation using the rotating weight 2 arranged inside the case of the timepiece 1 and manual winding power generation using the crown 3. Yes.
That is, the power generation means 4 transmits the mechanical energy from the crown 3 to the power generation apparatus 40, the automatic winding power transmission means 46 that transmits the mechanical energy from the rotary weight 2 to the power generation apparatus 40, and the power generation apparatus 40. Manual winding power transmission means 47.
Note that the power generation means may be provided with only the power generation device 40 and the automatic power generation transmission means 46 without including the manual power generation transmission means 47.

  The power generator 40 is a general AC generator including a stator 42 in which a rotor 41 is rotatably arranged and a coil block 44 around which a coil 43 is wound.

The automatic winding power transmission means 46 includes a rotary spindle 461 that rotates integrally with the rotary spindle 2 and a switching wheel 463 that transmits the rotation of the rotary spindle 461. The switching wheel 463 meshes with the rotor 41 and when the rotating weight 2 rotates, the rotational force is transmitted to the rotor 41 via the rotating wheel 461 and the switching wheel 463, and power generation is performed in the power generation device 40.
Note that the switching wheel 463 is configured to include interference avoiding means such as a ratchet wheel or a sliding structure (not shown), and transmits force during manual winding power generation and force transmission from the movement of the rotating weight during automatic winding power generation. Are configured not to interfere with each other.

The manual winding power transmission means 47 includes a winding stem 471, a chimney wheel 472, a round hole wheel 473, a swing wheel 474, a first manual winding transmission wheel 475, a second manual winding transmission wheel 476, a third manual winding transmission wheel 477, The switching wheel 463 is provided.
Since the crown 3 is attached to the tip of the winding stem 471, when the user turns the crown 3, the winding stem 471 rotates. The rotation of the winding stem 471 is transmitted to the swing wheel 474 via the chi-wheel 472 and the round hole wheel 473, and the rotation of the swing wheel 474 is transmitted to the first manual winding transmission wheel 475. The rotation is transmitted to the switching wheel 463 via the second manual winding transmission wheel 476 and the third manual winding transmission wheel 477.

At this time, the swing wheel 474 meshes with the kana 475A of the first manual winding transmission wheel 475 only when the winding stem 471 rotates in one direction. Specifically, a slit 478A is provided in the receiver 478 to which the swing wheel 474 is attached, and a support shaft 474A of the swing wheel 474 is slidably fitted in the slit 478A. Therefore, in the case of FIG. 4, when the round hole wheel 473 is rotated clockwise by the winding stem operation, the swing wheel 474 rotates counterclockwise and moves toward the center of the first manual winding transmission wheel 475. Move and mesh with Kana 475A. On the other hand, when the first manual winding transmission wheel 475 is rotated counterclockwise by driving from the switching wheel 463 side, the swing wheel 474 is separated from the kana 475A while rotating clockwise, and the first manual winding transmission wheel 475 is connected to the first manual winding transmission wheel 475. Disengagement. With such a configuration, the rotation of the rotary spindle 2 is not transmitted to the winding stem 471.
When the manual winding power transmission means 47 is not provided, the swing wheel 474, the first manual winding transmission wheel 475, the second manual winding transmission wheel 476, and the third manual winding transmission wheel 477 need not be provided.

[Rectifying means]
The rectifying means 5 rectifies the alternating current output from the power generator 40, and a known rectifier circuit such as a full-wave rectifier circuit or a half-wave rectifier circuit can be used.

[Charging detection means]
The charge detection means 6 detects whether or not the current generated by the power generation means 4 is charged in the secondary battery 7. For this reason, the charge detection means 6 may be a current detection circuit that detects the magnitude of the current rectified by the rectification means 5 or a voltage detection circuit that detects a voltage generated by the rectification means 5 during charging.
Therefore, conventionally known various current detection circuits and voltage detection circuits can be used as the charge detection means 6. For example, the current detection circuit includes a resistor arranged between the rectifying means 5 and the secondary battery 7, a peak detection circuit for measuring a current flowing through the resistor and detecting a peak value of the generated current, and a peak detection circuit. A current detection circuit provided with a comparison circuit that compares the detected value with a threshold value can be used.

The charge detection means 6 having such a configuration confirms the charging current charged in the secondary battery 7. When the CPU is provided, the charge detection means 6 may be driven at a predetermined sampling rate (sampling period) and sample the charging current charged in the secondary battery 7 by a signal from the CPU. .
When a peak detection circuit and a comparison circuit are provided as the current detection circuit, the peak detection circuit samples the charging current output from the rectifier 5 and detects the peak value in each sampling. The comparison circuit may compare the peak value detected by the peak detection circuit with a predetermined threshold value and output the detection result signal to the time display control means 14.

[Power storage means]
The power storage means includes a secondary battery 7 that can be charged with a charging current (generated current). The secondary battery 7 is composed of, for example, a lithium ion battery.
The output of the power generation means 4 is rectified by the rectification means 5 and charged to the secondary battery 7 via the charge detection means 6. The power storage means is not limited to the secondary battery 7, and a capacitor may be used.

[Secondary battery voltage detection means]
The voltage of the secondary battery 7 is detected by battery voltage detection means 71. The battery voltage detection means 71 is configured by a general voltage detection means that detects the voltage of the secondary battery 7 at a predetermined sampling timing (for example, every 2 seconds).

[Timekeeping control means and time display means]
Since the time measuring control means and the time display means for displaying the normal time have the configuration of a conventional general analog quartz timepiece, detailed description thereof is omitted.
That is, the oscillating means 12 includes a crystal resonator and an oscillating circuit, and outputs a signal having a predetermined frequency. The frequency dividing means 13 divides the signal from the oscillating means 12 and outputs a reference signal of 1 Hz, for example.
The time display control unit 14 outputs a drive signal to the time display motor driving unit 15 based on the reference signal of the frequency dividing unit 13. Normally, each time a 1 Hz reference signal is input from the oscillating means 12, a drive signal is output. The time display motor drive means 15 inputs the time display motor 16 to the motor coil of the time display motor 16 based on the drive signal, and the time display motor 16 steps the time display pointer 20.
In the present embodiment, a clock circuit is constituted by the oscillation means 12, the frequency dividing means 13, the time display control means 14, and the like.

[Operation stop part]
As will be described later, the operation stop unit 141 of the time display control unit 14 shifts to a sleep mode in which the hand movement of the time display hand 20 is stopped when the duration timed by the timer 143 reaches 0 hours. It is configured. In the present embodiment, a BLD counter 143E is also provided as the timer 143, and the processing in the BLD display mode is performed after the duration of normal hand movement reaches 0 hour. For this reason, the operation stop unit 141 stops the hand movement when the BLD counter 143E that operates in the BLD display mode reaches 0 hour.

In the sleep mode, (A) the time display motor driving means 15 is stopped and the movement of the hands 20 is stopped, but the oscillation means 12 and the frequency dividing means 13 are operated to keep the current time. There are a hand movement stop mode and an IC operation stop mode (IC operation stop function) in which the IC operation is also stopped and the current time is stopped in order to reduce power consumption from (B). In the sleep mode of this embodiment, (B) IC operation stop mode is set.
The electronic timepiece 1 may be provided with one of these stop modes, or may be provided with both stop modes and the user may select the stop mode. Furthermore, both stop modes are provided, and the mode is shifted to the hand movement stop mode immediately after shifting to the sleep mode, and the mode is automatically shifted to the IC operation stop mode when the hand movement stop mode is continued for a predetermined period (for example, one week). You may control.

[Operation restart part]
The operation restarting unit 142 of the time display control unit 14 detects charging (power generation by the power generation unit 4) in the charge detection unit 6 when operation is stopped (during sleep mode), and the voltage of the secondary battery 7 at this time is restarted. If the voltage is equal to or higher than the system stop voltage Von, which is a voltage, the hand movement is resumed immediately.
When the sleep mode is the IC operation stop mode, since the current time is unknown, the operation resuming unit 142 starts the operation of the pointer 20 that has been stopped as it is. In this case, since the current time and the time indicated by the hands 20 are often shifted, it is necessary for the user to adjust the time by operating the crown 3 or the button 8. While the time adjustment operation is performed with the crown 3 or the like, the operation of the timer 143 is continued and the remaining time of the duration is continuously counted.
When the sleep mode is the hand movement stop mode, since the current time is measured, the operation resuming unit 142 operates the time display motor driving means 15 to automatically correct the pointer 20 to the current time.

[timer]
The timer 143 is a counter that counts the operation duration. In this embodiment, the timer 143 counts the remaining time in the normal operation mode and the remaining time in the warning display operation mode (BLD operation mode) that warns of a voltage drop. There is a counter for counting.
As counters for counting the remaining time in the normal operation mode, a plurality of, specifically, four counters 143A to 143D are provided. These counters 143A to 143D are down counters that sequentially subtract and count the set initial values.
The first counter (first timer) 143A counts down one day (24 hours). The second counter (second timer) 143B counts down the period of 6 days, the third counter (third timer) 143C counts down the period of 23 days, and the fourth counter (fourth timer) 143D Count down for a period of 150 days.
Therefore, the first to fourth counters 143A to 143D can count the maximum duration of 1 day + 6 days + 23 days + 150 days = 180 days.

A BLD counter 143E is provided as a counter for counting the remaining time for the BLD operation mode. The BLD counter (BLD timer) 143E counts down 24 hours. The BLD counter 143E sets a period for performing BLD display with the pointer 20. The BLD display is a warning display called battery low display, battery life indicator, etc. For example, the second hand is moved every 2 seconds for 2 seconds. The minute hand movement is used to perform a warning operation that is different from the normal hand movement. This notifies the user that the battery voltage is decreasing.
If the operation is stopped without performing the BLD display, the timer 143 may not be provided with the BLD counter 143E.

[Duration display control unit]
The duration display control unit 145 includes (A) an indicator display function of an operation duration using the second hand 23, and (B) a function of controlling the operation of the timer 143.
That is, when the duration display operation is performed by the button 8, the duration display control unit 145 confirms the voltage of the secondary battery 7 detected by the battery voltage detection unit 71. Then, the duration display control unit 145 determines which range of a plurality of preset voltage ranges the voltage of the secondary battery 7 corresponds to.
Here, in this embodiment, as shown in FIG. 5, four continuous voltage ranges Vr1 to Vr4 are set. Specific voltage values in each voltage range are set as appropriate depending on the type of the electronic timepiece 1, and are exemplified as follows.
In the first voltage range Vr1, the voltage of the secondary battery 7 is VBLD (for example, 1.2V) or more and less than Vind1 (for example, 1.3V).
In the second voltage range Vr2, the voltage of the secondary battery 7 is not less than Vind1 (eg, 1.3V) and less than Vind2 (eg, 1.4V).
In the third voltage range, the voltage of the secondary battery 7 is not less than Vind2 (for example, 1.4 V) and less than Vind3 (for example, 1.5 V).
In the fourth voltage range, the voltage of the secondary battery 7 is equal to or higher than Vind3 (for example, 1.5 V).
In addition, the range where the voltage of the secondary battery 7 is less than VBLD (for example, 1.2V) and Von (for example, 1.1V) or more is set to the BLD voltage range Vr0 for performing BLD display.

  The duration display control unit 145 determines which voltage range the voltage of the secondary battery 7 corresponds to, and as shown in Table 1 below, the indicator display processing set for each voltage range, and the timer 143 Perform duration setting processing.

The indicator display of 5 seconds is a method of moving the second hand 23 to 5 seconds. That is, the duration display control unit 145 controls the time display motor drive unit 15 to fast-forward the second hand 23 by 5 seconds, and then stops until 5 seconds after the fast-forward start time.
Similarly, the indicator display of 10 seconds is a method of moving the hand in which the second hand 23 is fast-forwarded by 10 seconds and then stops until 10 seconds after the start of fast-forwarding. The indicator display of 20 seconds means that the second hand 23 is moved to 20 seconds. This is a method of moving the hand that stops 20 seconds after the fast-forward start time after fast-forwarding by the minute. The indicator display 30 seconds means that the second hand 23 is fast-forwarded by 30 seconds and then stops 30 seconds after the fast-forward start time. It is a hand movement method.
In addition, as described above, the BLD display is a hand movement method in which, for example, the second hand 23 is fast-forwarded by 2 seconds every 2 seconds.

  Further, the duration display control unit 145 operates a counter corresponding to the voltage range including the detected voltage of the secondary battery 7 and sets the operation duration in the timer 143. The timer (counter) in which the duration display control unit 145 operates and the set duration are as described in Table 1 above.

[Timer update section]
The timer update unit 146 updates the remaining time of the timer 143 if a predetermined condition is met when the charge detection unit 6 detects a charge state while the timer 143 (first to fourth counters 143A to 143D) is operating. To do.
Specifically, the timer update unit 146, when the operation duration according to the detection voltage Vs of the secondary battery 7 detected by the battery voltage detection means 71 is longer than the remaining time of the timer 143 in operation, The remaining time of the timer 143 is updated to the operation duration according to the detected voltage.
On the other hand, when the operation duration time corresponding to the detected voltage is equal to or less than the remaining time of the operating timer 143, the timer update unit 146 operates the timer 143 without being updated. The operation duration according to the detected voltage is the same as that shown in Table 1 set by the duration display control unit 145.

[Description of operation of electronic timepiece 1]
Next, the operation of the electronic timepiece 1 having such a configuration will be described.

[Operation stop mode S1]
First, an operation stop mode (step 1, hereinafter, step is abbreviated as “S”), which is an operation when the time display means (device) is in the IC operation stop state, will be described based on the flowchart of FIG.
As will be described later, the operation stop mode S1 is executed when the operation duration time of the normal operation becomes 0 hour and the BLD display counter 143E becomes 0 hour, and when the secondary battery 7 This is a case where the voltage drops below the system stop voltage Von.

When the operation of the time display means is stopped and the operation stop mode S1 is executed, the operation of the IC, that is, the time display control means 14 is stopped, and only the charge detection means 6 is operating.
For this reason, the charge detection means 6 is checking whether the charge state was detected (S2).
Until the charge state is detected in S2, the charge detection means 6 continues to check the charge detection.

  On the other hand, when the state of charge is detected in S2, a detection signal is input from the charge detection means 6 to the time display control means 14, whereby the IC operation stop function is canceled and the operation resuming unit 142 operates to resume operation. The unit 142 detects the voltage (detection voltage) Vs of the secondary battery 7 at the time of charge detection by the battery voltage detection means 71 (S3). When a memory such as a RAM is provided, the detected voltage value may be stored in a memory such as a RAM.

Next, the operation resuming unit 142 determines whether the detected voltage Vs corresponds to the first to fourth voltage ranges Vr1 to Vr4 and the BLD voltage range Vr0.
Specifically, the operation resuming unit 142 determines whether the detected voltage Vs is included in the first voltage range (S4). If No in S4, the operation restarting unit 142 determines whether the detected voltage Vs is included in the second voltage range. (S5). Further, if No in S5, it is determined whether the detected voltage Vs is included in the third voltage range (S6). If No in S6, it is determined whether the detected voltage Vs is included in the fourth voltage range (S7). ). Here, since only the lower limit value (Vind3) is set in the fourth voltage range, if the detection voltage Vs is equal to or greater than Vind3, it is determined Yes in S7.
Further, the operation resuming unit 142 determines whether or not the detected voltage Vs is included in the BLD voltage range when No in S7, that is, when the detected voltage Vs is less than the lower limit value (VBLD) of the first voltage range (S8). ).

Here, the lower limit value of the BLD voltage range is the system stop voltage Von. This system stop voltage Von is a minimum voltage required to operate each electric circuit such as an IC of the electronic timepiece 1, and when the voltage of the secondary battery 7 becomes less than Von, the oscillation means 12 and the frequency dividing means 13. And the control circuit 101 and the like are also stopped. For this reason, when it determines with No by S8, the driving | operation restarting part 142 complete | finishes a process, without restarting the driving | operation of a time display means.
Therefore, the system stop voltage Von is an operation resumption voltage for determining whether or not to allow resumption of operation.

[Start-up process in the first voltage range]
When the detected voltage Vs is included in the first voltage range (Yes in S4), the operation resuming unit 142 sets an initial value in the first counter 143A and starts counting (S9). The first counter 143A is a down counter that counts one day (24 hours). For this reason, the first counter 143A is set with an initial value for counting the operation duration of the day as a counter value, and a timer 143 for measuring the operation duration of the day is configured. For example, when the first counter 143A counts down every second, the initial value is 60 seconds × 60 minutes × 24 hours = 86400. Accordingly, the operation resuming unit 142 sets the initial value 86400 in the first counter 143A, and decreases the counter value by “1” every second using the 1 Hz reference signal input from the frequency dividing means 13 or the like. .

  Here, VBLD which is the lower limit value of the first voltage range is the time when the time display motor 16 is in the state where the power generation means 4 is not generating power when the voltage of the secondary battery 7 is VBLD. It is set so that the voltage of the secondary battery 7 does not become less than the system stop voltage Von at the time when the operation is performed for one day with only the electric power.

[Startup process in the second voltage range]
When the detected voltage Vs is included in the second voltage range (Yes in S5), the operation resuming unit 142 sets initial values in the first counter 143A and the second counter 143B, and starts counting (S10). In the second counter 143B, an initial value corresponding to 6th is set as a counter value. Accordingly, the first counter 143A and the second counter 143B constitute a timer 143 that measures the operation duration of 7 days.
When the timer 143 is constituted by a plurality of counters, the down-counting is started from a counter having a long counting period. For this reason, in the second voltage range using the first counter 143A and the second counter 143B, the second counter 143B first performs a down-count, and when the counter value of the second counter 143B becomes 0 after 6 days, Count down one counter 143A and count one day. That is, a period of 6 days + 1 day = 7 days is counted by the first counter 143A and the second counter 143B.

  Here, Vind1 which is the lower limit value of the second voltage range is the time when the time display motor 16 is in the state where the power generation means 4 is not generating power when the voltage of the secondary battery 7 is Vind1. It is set so that the voltage of the secondary battery 7 does not become less than VBLD when it is operated for 7 days with only the electric power. In this embodiment, Vind1 is set to a voltage that can ensure a duration of about 20 days.

[Start-up process in the third voltage range]
When the detected voltage Vs is included in the third voltage range (Yes in S6), the operation resuming unit 142 sets the first counter 143A, the second counter 143B, and the third counter 143C to initial values, and starts counting (S11). ). In the third counter 143C, an initial value corresponding to the 23rd is set as a counter value. Accordingly, the first counter 143A, the second counter 143B, and the third counter 143C constitute a timer 143 that measures the operation duration of 30 days.
In the third voltage range, the third counter 143C first counts down. When the counter value of the third counter 143C becomes 0 after 23 days, the second counter 143B performs down-counting. Next, when the counter value of the second counter 143B becomes 0 after 6 days, the first counter 143A performs down-counting. That is, a period of 23 days + 6 days + 1 day = 30 days (one month) is counted by the first counter 143A, the second counter 143B, and the third counter 143C.

  Here, Vind2, which is the lower limit value of the third voltage range, is the time when the time display motor 16 is in a state where the power generation means 4 is not generating power when the voltage of the secondary battery 7 is Vind2. It is set so that the voltage of the secondary battery 7 does not become less than VBLD at the time when the battery is operated for 30 days with only the electric power. In this embodiment, Vind2 is set to a voltage that can ensure a duration of about 80 days.

[Start-up processing in the fourth voltage range]
When the detected voltage Vs is included in the fourth voltage range (Yes in S7), the operation resuming unit 142 sets the first counter 143A, the second counter 143B, the third counter 143C, and the fourth counter 143D to initial values, and counts them. Is started (S12). In the fourth counter 143D, an initial value corresponding to 150 days is set as a counter value. Accordingly, the first counter 143A, the second counter 143B, the third counter 143C, and the fourth counter 143D constitute a timer 143 that measures the operation duration of 180 days.
Then, in the fourth voltage range, the fourth counter 143D first counts down, and when 150 days have passed and the counter value of the fourth counter 143D becomes 0, the third counter 143C performs the down count. Next, when the counter value of the third counter 143C becomes 0 after 23 days, the second counter 143B performs down-counting. Next, when the counter value of the second counter 143B becomes 0 after 6 days, the first counter 143A performs down-counting. That is, a period of 150 days + 23 days + 6 days + 1 day = 180 days (6 months) is counted by the first counter 143A, the second counter 143B, the third counter 143C, and the fourth counter 143D.

  Here, Vind3 which is the lower limit value of the fourth voltage range is the time when the time display motor 16 is in the state where the power generation means 4 is not generating power when the voltage of the secondary battery 7 is Vind3. It is set so that the voltage of the secondary battery 7 does not become less than VBLD when it is operated for 180 days with only the electric power. In this embodiment, Vind3 is set to a voltage that can ensure a duration of about 200 days.

  The time display control means 14 will transfer to the process of normal operation mode S20 mentioned later, if the process of S9-S12 is performed by the driving | operation resuming part 142. FIG. On the other hand, when the detected voltage Vs is included in the BLD voltage range (Yes in S8), the time display control unit 14 proceeds to processing in a BLD operation mode S30 described later.

[Normal operation mode]
Next, the process in the normal operation mode S20 will be described with reference to FIG.
In the normal operation mode S20, the time display control means 14 controls the time display motor drive means 15 to perform normal hand movement processing (S21). This normal hand movement process is continued until the operation is stopped by the operation stop unit 141. However, in the duration display process S50 and the BLD operation mode S30, which will be described later, pointer drive control different from normal hand movement is performed.

  The time display control means 14 determines whether or not the duration of normal operation has reached 0 hour (S22). Specifically, since the duration set in each voltage range ends when the first counter 143A finally becomes 0, it is determined whether or not the first counter 143A has become 0. And when it determines with Yes by S22, the time display control means 14 performs the BLD operation mode mentioned later (S30).

On the other hand, when it determines with No by S22, the time display control means 14 checks the output of the charge detection means 6, and determines whether the charge state was detected (S23). When it is determined Yes in S23, the time display control unit 14 executes a timer update process S40 described later by the timer update unit 146.
On the other hand, when it is determined No in S23, that is, when charge detection is not performed, the timer update process S40 is not executed.

After the timer update process S40 is executed or when it is determined No in the charge state detection process S23, the time display control unit 14 determines whether or not the duration display operation has been performed by operating the button 8 ( S24). When it determines with Yes in S24, the duration display control part 145 performs the duration display process S50 mentioned later, and returns to a normal hand movement process (S21).
On the other hand, when it is determined No in S24, the time display control unit 14 returns to the normal hand movement process (S21) without executing the duration display process.
Therefore, the normal operation mode S20 is continuously executed until the normal operation duration becomes 0 hour.

[Timer update processing]
Next, the timer update process S40 will be described with reference to FIG.
When the timer update process S40 is executed, the timer update unit 146 acquires the voltage Vs of the secondary battery 7 detected by the battery voltage detection means 71 (S41). Next, the timer update unit 146 determines whether or not the detected voltage Vs is less than the system stop voltage Von (S42). If it determines with Yes in S42, the driving | operation stop part 141 will stop a hand movement (S43), and the above-mentioned driving | running | working stop mode S1 which is the operation | movement process at the time of a driving | operation stop will be performed.

On the other hand, when it determines with No by S42, the timer update part 146 determines whether the detection voltage Vs is less than VBLD (S44). If it is determined Yes in S44, the time display control means 14 executes the BLD operation mode S30.
Since the timer update process S40 is executed when charging is detected in the normal operation mode, there is almost no possibility that the detection voltage Vs becomes less than the system stop voltage Von or less than VBLD. Then, the process of S42-S44 is set as an error countermeasure when a voltage falls.

Next, the timer update unit 146 confirms whether there is an operating timer 143 (S45). Here, in the normal operation mode, since the timer 143 composed of one or more counters set with initial values in the operation stop mode S1 shown in FIG. 6 is normally operated, it is determined Yes in S45. .
In that case, the timer update unit 146 includes the first to the first durations including the operation duration, that is, the detection voltage Vs, set in accordance with the detection voltage Vs detected in S41. It is determined whether it is longer than the initial value of the timer 143 set by the fourth voltage range (S46).
In other words, the timer update unit 146 determines Yes in S46 if there is a counter corresponding to a voltage range in which the detected voltage Vs is higher than the corresponding voltage range among the counters constituting the operating timer.

For example, when the detection voltage Vs is in the first voltage range, the corresponding operation duration is one day. Therefore, if the remaining duration of the operating timer 143 is longer than one day, it is determined Yes in S46, and the timer update unit 146 does not reset the timer 143, but does not reset the timer 143 that is currently operating. Is used as it is. In addition, when the remaining duration of the operating timer is longer than one day, the initial value is set in the second counter 143B, the initial value is set in the second counter 143B, or the third counter 143C or This is a case where the downcounting is performed by the fourth counter 143D. Therefore, by checking whether the second counter 143B is 0 hour, it can be determined whether the remaining duration of the operating timer 143 is longer than one day.
Similarly, when the detected voltage Vs is in the second voltage range and the remaining duration of the operating timer 143 is longer than 7 days, it is determined Yes in S46, and the timer update unit 146 sets the timer 143. The counter that is currently in operation is used as it is without being repaired. In this case as well, the determination can be made by confirming whether the third counter 143C has reached 0 hours.
Also, when the detected voltage Vs is in the third voltage range and the remaining duration of the operating timer 143 is longer than 30 days, it is determined Yes in S46, and the timer update unit 146 resets the timer 143. Do not do anything, use the counter that is currently in operation. Also in this case, the determination can be made by confirming whether the fourth counter 143D has reached 0 hours.

  That is, the timer update unit 146 determines that the current detection voltage Vs is lower than the detection voltage Vs when the currently active timer 143 is set and falls within a lower voltage range in S46. In this case, the operating timer 143 is used as it is.

  On the other hand, when the operation duration corresponding to the current detection voltage Vs is longer than the remaining duration of the currently operating timer 143, the timer update unit 146 determines No in S46. For example, after the initial duration of 180 days is set, if the operation is performed for 175 days without charge detection, the remaining duration is 5 days. At this time, the user may vibrate the electronic timepiece 1 to extend the duration, or operate the crown 3 to generate power with the power generation means 4, and charge the secondary battery 7 to increase the voltage. . When the voltage of the secondary battery 7 is increased to the second, third, and fourth voltage ranges in this way, the duration corresponding to the detected voltage is 7 days, 30 days, and 180 days, and the current remaining duration is 5 days. Also gets longer. In this case, it is determined No in S46.

When it is determined No in S45 and when it is determined No in S46, the timer update unit 146 sets the initial value of the counter (timer 143) corresponding to the detected voltage Vs and starts counting by the counter. (S47).
For example, if the remaining duration is 5 days and the detected voltage Vs is in the third voltage range, No is determined in S46. In this case, the timer update unit 146 sets the timer 143 (the timer 143 including the first counter 143A, the second counter 143B, and the third counter 143C) that is set corresponding to the third voltage range including the detection voltage Vs. Set the initial value and start counting.

  When the process of S47 is performed and when it is determined Yes in S46, the time display control unit 14 ends the timer update process S40 by the timer update unit 146 and enters the normal operation mode S20 shown in FIG. Return.

[Duration display processing S50]
Next, the process of the duration display process S50 will be described with reference to FIG.
When the duration display process S50 is executed, the duration display control unit 145 acquires the voltage Vs of the secondary battery 7 detected by the battery voltage detection means 71 (S51). Next, the duration display control unit 145 determines whether the detected voltage Vs falls within the first to fourth voltage ranges and the BLD voltage range (S52 to S56).

[Duration display processing in the first voltage range]
When the detection voltage Vs is included in the first voltage range (Yes in S52), the duration display control unit 145 sets an initial value to the timer 143 configured by the first counter 143A and starts counting (S57). Further, the time display motor driving means 15 is controlled to execute the above-described 5-second display process of the indicator (S58).

[Duration display processing in the second voltage range]
When the detected voltage Vs is included in the second voltage range (Yes in S53), the duration display control unit 145 sets an initial value to the timer 143 including the first counter 143A and the second counter 143B, and starts counting. (S59). Further, the time display motor driving means 15 is controlled to execute the above-described indicator 10-second display process (S60).

[Duration display processing in the third voltage range]
When the detected voltage Vs is included in the third voltage range (Yes in S54), the duration display control unit 145 sets an initial value to the timer 143 configured by the first counter 143A, the second counter 143B, and the third counter 143C. The count is started (S61). Further, the time display motor driving means 15 is controlled to execute the above-described indicator 20-second display process (S62).

[Duration display processing in the fourth voltage range]
When the detected voltage Vs is included in the fourth voltage range (Yes in S55), the duration display control unit 145 includes the first counter 143A, the second counter 143B, the third counter 143C, and the timer 143 configured by the fourth counter 143D. An initial value is set to, and counting is started (S63). Further, the time display motor drive means 15 is controlled to execute the above-described indicator 30-second display process (S64).

  The indicator display processes S58, S60, S62, and S64 are normally executed once, but may be continued for a predetermined time (for example, 1 minute) or a predetermined number of times (for example, 4 times). For example, the indicator 5-second display in S58 is a display process in which the second hand 23 is fast-forwarded by 5 seconds and is stopped for 5 seconds from the start of fast-forwarding. However, this process may be performed only once, or 1 minute, that is, 12 It may be performed twice or a predetermined number of times such as four times.

When the detection voltage Vs is included in the BLD voltage range (Yes in S56), the BLD operation mode S30 is executed.
In addition, when it is determined No in S56, since the detection voltage Vs is less than the system stop voltage Von, the operation stop unit 141 stops the hand movement (S65), and the above-described operation stop is an operation process at the time of operation stop. Mode S1 is executed.

  As described above, in the duration display process S50, the duration corresponding to the detection voltage Vs is set in the timer 143, the remaining time starts to be counted, and the indicator display for displaying the set duration is further displayed. Is performed using the second hand 23.

[BLD operation mode]
Next, the BLD operation mode S30 will be described with reference to FIG. Note that, as described above, the BLD operation mode S30 is executed when “Yes” is determined in S8 (FIG. 6), S22 (FIG. 7), S44 (FIG. 8), and S56 (FIG. 9).

When the BLD operation mode S30 is executed, the time display control means 14 sets an initial value (24 hours in the present embodiment) in the BLD counter 143E and starts a down count in order to set the duration of the BLD operation. .
Next, the time display control means 14 performs BLD hand movement (S32). The BLD hand movement is, for example, that the second hand 23 is fast-forwarded by 2 seconds every 2 seconds, and it is only necessary to notify the user that a BLD hand movement different from the normal hand movement is being executed.

Next, the time display control unit 14 determines whether or not the charging from the power generation unit 4 to the secondary battery 7 has been detected (S33). Here, when it is determined that there is charge detection, the time display control means 14 determines whether the detected voltage Vs is less than VBLD (S34).
When it is determined No in S34, that is, when the voltage of the secondary battery 7 has returned to a level higher than the BLD voltage range, the time display control unit 14 executes the above-described normal operation mode S20.

When it is determined No in S33 or when it is determined No in S34, the time display control unit 14 determines whether or not the remaining time of the BLD counter 143E is greater than 0 hours (S35).
If it is determined Yes in S35, the BLD operation period remains, so the process returns to S32 to continue the BLD hand movement.
On the other hand, when it is determined No in S35, since the BLD operation period has ended, the operation stop unit 141 stops the hand movement (S36) and executes the operation stop mode S1 described above.

According to this embodiment, there are the following effects.
(1) Since the duration display control unit 145 and the timer update unit 146 are provided, it is possible to prevent the operation from stopping in a time shorter than the displayed duration when the operation duration is displayed. When the secondary battery 7 is charged, the operation duration can be appropriately adjusted according to the voltage of the secondary battery 7, and convenience can be improved.
That is, when the duration display process S50 is performed by operating the button 8, the duration display control unit 145 resets the timer 143 according to the detection voltage Vs, and displays the duration according to the detection voltage Vs. ing. Since the timer update unit 146 operates only when the state of charge is detected, when the power generation unit 4 does not generate power, the timer update unit 146 ends the normal operation when the displayed duration has elapsed, and the BLD operation mode. Can be migrated to.
For this reason, when there is a high possibility that the power generation means 4 is not operated and the electronic timepiece 1 is not used, the operation state is continued more than necessary and the voltage of the secondary battery 7 is less than the system stop voltage Von. Can be prevented. Further, when there is a high possibility that the power generation means 4 is activated and the electronic timepiece 1 is being used, the duration is updated according to the voltage of the secondary battery 7, so Stopping can also be prevented and convenience can be improved.
For example, if the timer update unit 146 is operated even when the state of charge is not detected, the duration is always updated as long as the detection voltage Vs is maintained in the same voltage range. Normal operation continues until it drops below VBLD. If the state of charge cannot be detected, there is a high possibility that the electronic timepiece 1 is not being used, so that power is consumed unnecessarily, and the voltage of the secondary battery 7 at the time of operation stop becomes low. There is a high possibility that the secondary battery 7 must be charged, and there is a disadvantage that the electronic timepiece 1 cannot be used immediately.
On the other hand, in the present embodiment, the timer update unit 146 operates only when the state of charge is detected. Therefore, when the electronic timepiece 1 does not detect the charge, the BLD is updated when the set duration has elapsed. The operation can be stopped by shifting to the operation mode S30, the voltage of the secondary battery 7 can be maintained high when the operation is stopped, and the electronic timepiece 1 can be used immediately when the operation is resumed.

(2) Furthermore, the timer update unit 146 newly resets the duration of the timer 143 only when the duration corresponding to the detected voltage Vs is longer than the remaining duration of the operating timer 143.
For this reason, the inconvenience that the normal operation ends before the displayed duration time can be prevented. For example, since the detection voltage in the duration display process S50 is slightly higher than Vind3, after the duration is set to 180 days, charge detection is performed when the operation is performed for 10 days, and the detection voltage Vs is the third voltage. In the voltage range, if the timer is automatically switched to the duration corresponding to the detected voltage Vs at that time, the remaining duration of 170 days is shortened to 30 days. For this reason, since the normal operation ends at a time shorter than the duration recognized by the user, the user cannot trust the displayed duration, and as a result, convenience is impaired.
On the other hand, in the present embodiment, when the duration by the detection voltage Vs is shorter than the remaining duration of the operating timer 143, the operating timer 143 is continuously used, so the displayed duration is Driving can be continued and convenience can be improved.

(3) Furthermore, when the duration corresponding to the detected voltage Vs is longer than the remaining duration of the active timer 143, the timer update unit 146 newly resets the duration of the timer 143. For this reason, when the user performs a manual power generation operation such as by rotating the rotating weight 2 by shaking the electronic timepiece 1 for the purpose of extending the duration, the voltage of the secondary battery 7 rises. The duration according to the voltage value can be newly set. Therefore, it is possible to meet the expectation of the user who performed the power generation operation to extend the duration, and the convenience can be improved in this respect.

(4) When resuming the operation from the operation stop state (sleep mode), the voltage Vs of the secondary battery 7 at the time of resuming the operation is detected, and a counter that operates as a timer is selected according to the voltage. . That is, as the detection voltage Vs is higher, a timer having a longer duration is operated. For this reason, appropriate operation resumption processing can be performed according to the detected voltage Vs.
In particular, since the operation duration can be set according to the detected voltage Vs, even if the operation is performed only for the duration without using the power generation means 4 to generate power, the secondary battery 7 can be operated for the duration. 7 can be set so as not to fall to the system stop voltage Von or the BLD voltage range. For this reason, even when the operation is stopped, the secondary battery 7 can be maintained at VBLD or higher, and when power generation by the power generation means 4 is performed and a charged state is detected, the hand movement can be resumed immediately and the user can be resumed. Can check time and improve convenience.

(5) As the timer 143, four timers (counters) of the first to fourth counters 143A to 143D are provided, and each counter 143A to 143D is set corresponding to each voltage range Vr1 to Vr4. The design structure of the timer 143 can be simplified as compared with the case where only one timer is provided and different durations are counted.
That is, when managing a plurality of durations with a single timer, it must be designed so that different durations can be set. On the other hand, in this embodiment, it is only necessary to set an initial value that is the maximum value that can be counted by each of the counters 143A to 143D, and the design structure of the timer can be simplified.

(6) In the present embodiment, the timer 143 continues to operate even when the time is adjusted by the crown 3 or the like. For this reason, for example, even when the electronic timepiece 1 is left with the crown 3 pulled in two steps and left in the time adjustment state, the timer 143 operates and the operation is stopped when the duration becomes 0. It can prevent that the voltage of the secondary battery 7 falls below the system stop voltage Von.

It should be noted that the present invention is not limited to the above-described embodiments, and modifications, improvements, and the like within the scope that can achieve the object of the present invention are included in the present invention.
For example, in the above-described embodiment, when the duration of the normal operation set by the timer 143 according to the detection voltage Vs becomes 0 hour, the normal operation is stopped and the mode is shifted to the BLD operation mode. The operation is stopped when the time has elapsed (24 hours in the above embodiment), but the operation may be stopped when the duration of the normal operation becomes 0 hours without shifting to the BLD operation mode.

The voltage range for determining the detection voltage Vs is not limited to the first to fourth voltage ranges. The number of these voltage ranges and the specific voltage values for setting each voltage range may be appropriately set based on the type of the electronic timepiece 1 and the characteristics of the charging means such as the secondary battery 7.
Furthermore, the method for obtaining the duration according to the detection voltage Vs is not limited to the method for setting the voltage range. For example, an arithmetic expression that can calculate the duration time may be set by substituting the value of the detection voltage Vs.
Further, as the timer 143, the counters 143A to 143D corresponding to the respective voltage ranges are combined, but a counter for measuring the duration of each voltage range may be used individually. For example, prepare a counter that counts one day, a counter that counts seven days, a counter that counts thirty days, and a counter that counts 180 days. Select one of these counters for use. Also good.
Furthermore, the timer 143 may be configured by a single counter configured to be able to measure a plurality of durations.

  Further, the duration display means is not limited to the one using the second hand 23, and a dedicated indicator for displaying the duration may be provided and displayed. Furthermore, the display means such as a liquid crystal display may be displayed using numbers or indicators.

  As the power generation device 40, various power generation devices such as a power generation device using an external AC magnetic field, a solar power generation device, and a temperature difference power generation device can be used in addition to the manual winding power generation device and the automatic winding power generation device as in the above embodiment. In addition, the electronic timepiece 1 may incorporate one of the various types of power generation devices, or may combine a plurality of types of power generation devices.

  Further, the present invention is not limited to a wristwatch, and can be applied to other watches such as a pocket watch, a table clock, and a wall clock as long as it has a power generation function. Furthermore, the present invention is not limited to those applied to the electronically controlled mechanical timepiece as in the above-described embodiment, but includes various types of clocks such as table clocks and clocks, portable watches, portable sphygmomanometers, cellular phones, pagers, and pedometers. It can also be applied to various electronic devices such as a calculator, a portable personal computer, an electronic notebook, a portable radio, a music box, a metronome, and an electric razor. In particular, it has a power generation function and is suitable for portable electronic devices that are not always used but are used when necessary.

  DESCRIPTION OF SYMBOLS 1 ... Electronic timepiece, 4 ... Electric power generation means, 6 ... Charge detection means, 7 ... Secondary battery, 14 ... Time display control means, 15 ... Time display motor drive means, 16 ... Time display motor, 20 ... Time display Pointer, 23 ... second hand, 40 ... power generation device, 71 ... battery voltage detection means, 141 ... operation stop unit, 142 ... operation restart unit, 143 ... timer, 143A ... first counter, 143B ... second counter, 143C ... third Counter, 143D ... fourth counter, 143E ... BLD counter, 145 ... duration display control unit, 146 ... timer update unit.

Claims (6)

Power generation means;
Power storage means for storing electrical energy generated by the power generation means;
A device operated by the electrical energy stored in the power storage means;
Charge detection means for detecting a state of charge from the power generation means to the power storage means;
Voltage detection means for detecting the voltage of the power storage means;
Display operation means for instructing display of the operation duration of the apparatus;
A duration display means for displaying the operation duration of the device;
Operation control means for controlling the operation state of the device,
The operation control means includes
An operation stop unit for controlling the apparatus to an operation stop state;
An operation resuming unit that resumes operation of the device when the device is in an operation-stopped state;
When the display operation means is operated, a duration display control unit that activates the duration display means to display a driving duration;
A timer for measuring the remaining time of the operation duration;
A timer update unit that updates a remaining time of the timer when the charge detection unit detects a charge state during the operation of the timer;
The operation restarting unit restarts the operation of the device when the detected voltage detected by the voltage detection unit is larger than the operation restart voltage when the charge detection unit detects the state of charge, and the detection voltage Set the operation duration according to the above and activate the timer,
The operation stop unit controls the device to an operation stop state when the remaining time of the timer becomes 0,
The duration display control unit displays the operation duration according to the detected voltage detected by the voltage detection unit with the duration display unit when the display operation unit is operated, and the operation duration Set the time and activate the timer,
The timer update unit
When the operation duration according to the detected voltage detected by the voltage detection means is longer than the remaining time of the timer in operation, the remaining time of the timer is updated to the operation duration according to the detected voltage. ,
The electronic device with a power generation function, wherein the operating timer is operated as it is when the operation duration according to the detected voltage is equal to or less than the remaining time of the operating timer. In the electronic device with a power generation function according to claim 1,
The operation duration is set for each of a plurality of voltage ranges divided in advance,
The operation duration according to the detected voltage is an operation duration set in a voltage range corresponding to the detected voltage. In the electronic device with a power generation function according to claim 2,
The timer is configured with a plurality of timers corresponding to the plurality of voltage ranges, and when setting the operation duration according to the detection voltage, a timer corresponding to the voltage range including the detection voltage, An electronic device with a power generation function, characterized in that the operation duration is set in combination with a timer corresponding to a voltage range lower than the voltage range. In the electronic device with a power generation function according to claim 2 or claim 3,
The timer includes a timer for measuring the remaining time in the normal operation mode, and a timer for measuring the remaining time in the BLD operation mode for warning the low voltage state,
The operation control means operates the apparatus in the BLD operation mode when the remaining time of a timer for measuring the remaining time in the normal operation mode becomes 0 hour,
The said operation stop part controls the said apparatus to an operation stop state, when the remaining time of the timer which times the remaining time of BLD operation mode becomes 0 hours. The electronic device with a power generation function characterized by the above-mentioned. In the electronic device with a power generation function according to any one of claims 1 to 4,
The device is time display means for displaying time,
The electronic device with a power generation function, wherein the operation control unit continues the operation of the timer even when a time correction state in which the time displayed by the time display unit is corrected is entered. Power generation means;
Power storage means for storing electrical energy generated by the power generation means;
A device operated by the electrical energy stored in the power storage means;
Charge detection means for detecting a state of charge from the power generation means to the power storage means;
Voltage detection means for detecting the voltage of the power storage means;
Display operation means for instructing display of the operation duration of the apparatus;
A duration display means for displaying the operation duration of the device;
A control method for an electronic device with a power generation function, comprising an operation control means for controlling the operation state of the device,
The operation control means includes a timer for measuring the remaining time of the operation duration,
When the display operation means is operated, the operation duration corresponding to the detected voltage detected by the voltage detection means is displayed by the duration display means, and the operation duration is set and the timer is set. A duration display process to be activated;
When the operation duration according to the detected voltage detected by the voltage detection means is longer than the remaining time of the timer in operation, the remaining time of the timer is updated to the operation duration according to the detected voltage. When the operation duration according to the detected voltage is equal to or less than the remaining time of the operating timer, a timer update process for operating the operating timer as it is,
An operation stop process for controlling the device to an operation stop state when the remaining time of the timer becomes 0;
When the charge detection unit detects the state of charge, and the detected voltage detected by the voltage detection unit is greater than the operation restart voltage, the operation of the device is restarted and the operation duration according to the detection voltage Operation resumption processing for operating the timer by setting
The control method of the electronic device with a power generation function characterized by performing these.