JP2017181055A - Electronic timepiece of apparatus built-in type - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable an electronic timepiece to easily keep time with high accuracy that suits a use environment.SOLUTION: An electronic timepiece of apparatus built-in type comprises: an oscillation circuit unit 2 having a crystal resonator 2A; a timekeeping unit 3 for keeping time with an oscillation frequency from the oscillation circuit unit 2; a correction unit 4 for correcting the oscillation frequency with a set amount of correction; and a correction amount adjustment unit 8 for exercising correction amount adjustment control. The correction amount adjustment unit 8 executes correction amount adjustment control for each manual correction of the current time of day the second time an operation unit 6 is used and thereafter, and, in correction amount adjustment control, executes a first computation process of computing a time correction amount, a second computation process of computing an elapsed time from the previous corrected time of day that is stored in a storage unit 7 to the current time of day after the correction, a third computation process of computing the amount of correction from the time correction amount and the elapsed time, and a correction amount adjustment process of adjusting a set amount of correction with the amount of correction obtained by the third computation process. The set amount of correction of the storage unit 7 is stored and updated to a set amount of correction after adjustment. The correction unit 4 corrects the oscillation frequency with the set amount of correction after adjustment.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a device built-in type electronic timepiece device equipped in various devices such as a water heater and a heater having a timer function.

  In an electronic timepiece device equipped with a quartz crystal unit, there is an error in the time output by the electronic timepiece device due to fluctuations in the oscillation frequency of the quartz crystal unit due to changes in ambient temperature and individual differences in the quartz crystal unit. It is known to occur.

  In particular, remote controls (remote control devices) for water heaters, which are examples of devices with built-in electronic timepieces, are often installed in kitchens and bathrooms where the temperature changes particularly rapidly in the home. There is a tendency that a time error due to a change in the oscillation frequency of the crystal resonator due to the change appears significantly.

  Therefore, as an electronic clock device built in a remote controller for a water heater, a thermistor is installed in the vicinity of the crystal unit, and the temperature control function of this thermistor keeps the ambient temperature of the crystal unit at a constant temperature. There is one that suppresses the fluctuation of the oscillation frequency of the vibrator and improves the timing accuracy (see, for example, Patent Document 1).

  In addition, in an electronic timepiece for a vehicle which is an example of an electronic timepiece device with a built-in device whose ambient temperature changes drastically, temperature measurement means for measuring the ambient temperature of the crystal unit and characteristic data on the actual frequency temperature characteristics of the crystal unit And data storage means in which individual difference data such as a quartz crystal unit is stored, temperature data measured by the temperature measurement means, characteristic data of the data storage means and individual difference data, a calculation means for calculating a time correction value, and Compensation means that corrects the clock time of the oscillation frequency according to the time correction value computed by the computation means, etc., enabling time display corrected according to the ambient temperature and individual differences of the crystal unit (See, for example, Patent Document 2).

Japanese Patent Laid-Open No. 10-332851 Japanese Patent No. 5858379

  The configuration described in Patent Document 1 requires a thermistor for keeping the ambient temperature of the crystal resonator at a constant temperature, which increases the manufacturing cost. In addition, problems such as an increase in power consumption due to heat generation of the thermistor and an increase in the size of the device by securing a space for installing the thermistor occur.

  The configuration described in Patent Document 2 requires a temperature measuring means for measuring the ambient temperature of the crystal resonator, and thus increases the manufacturing cost. In addition, in terms of manufacturing, it takes time to carry out actual measurement to obtain characteristic data on the actual frequency-temperature characteristics of each crystal unit included in each electronic timepiece device and individual difference data of the crystal unit. There is room for improvement.

  That is, there is a demand for the development of an electronic timepiece device that can easily perform highly accurate timekeeping suitable for a use environment without causing an increase in manufacturing cost.

As a configuration for solving the above problems,
An electronic timepiece device with a built-in device according to the present invention includes an oscillation circuit unit having a crystal resonator, a timing unit that performs timing processing based on an oscillation frequency from the oscillation circuit unit, and correction of oscillation frequency based on a set correction amount A correction unit that performs processing, a display unit that displays the time measurement process and the current time obtained by the correction process, an operation unit that enables manual correction of the current time displayed on the display unit, and the set correction amount And a non-volatile storage unit that stores the current time after manual correction using the operation unit as a correction time, and a correction amount adjustment unit that executes correction amount adjustment control for adjusting the set correction amount ,
The correction amount adjustment unit
The correction amount adjustment control is executed every time manual correction of the current time after the second time using the operation unit is performed,
In the correction amount adjustment control,
A first calculation process for calculating a time correction amount from the current time before correction to the current time after correction;
A second calculation process for calculating an elapsed time from the previous correction time stored in the storage unit to the current time after correction;
A third calculation process for calculating an adjustment amount based on the time correction amount obtained in the first calculation process and the elapsed time obtained in the second calculation process;
A correction amount adjustment process for adjusting the set correction amount based on the adjustment amount obtained in the third calculation process;
In the storage unit, the stored set correction amount is updated to the set correction amount after adjustment by the correction amount adjustment processing,
The correction unit performs the correction process based on the adjusted set correction amount stored and updated.

  According to this configuration, when a user or the like inserts the power plug of a device into a commercial power outlet in order to start using the device incorporating the electronic timepiece device, the time setting is not performed on the display unit. For example, “00:00” is flashed and displayed as the current time to inform the user or the like. Based on this display, when manual correction (time setting) of the current time using the operation unit by the user or the like is performed, the current time after manual correction is set as the correction time along with the completion of the manual correction at this time. Stored in the storage unit. Then, after the first manual correction of the current time until the second manual correction of the current time, the correction unit performs an oscillation frequency correction process based on the set correction amount set before shipment. The display unit displays the current time obtained by the timing process of the timing unit and the correction process of the correction unit.

  Thereafter, after a certain period (for example, one year) has elapsed since the start of use of the device, when the second current time manual correction using the operation unit by the user or the like is performed, the correction amount adjustment unit performs the correction amount adjustment control. Execute. In this correction amount adjustment control, first, with the completion of manual correction, first calculation processing for calculating the time correction amount (delay time amount or advance time amount) at this time, and the correction time stored in the storage unit ( A second calculation process for calculating an elapsed time (usage period) from the current time after the first manual correction) to the current time after the second correction is performed. Next, based on the time correction amount obtained in the first calculation process and the elapsed time (use period) obtained in the second calculation process, the adjustment amount (delay per unit time) in accordance with the use environment in this use period A third calculation process for calculating a time amount or an advance time amount), and a set correction amount at the time of shipment from the factory based on the adjustment amount obtained by the third calculation process (proper correction amount) suitable for the use environment Correction amount adjustment processing to be adjusted is performed. In addition, the set correction amount stored in the storage unit is updated to the set correction amount (appropriate correction amount) obtained by the correction amount adjustment processing at this time. From the second manual correction of the current time to the third manual correction of the current time, the correction unit performs an oscillation frequency based on a set correction amount (appropriate correction amount) suitable for the use environment. The display unit displays the current time obtained by the correction process of the correction unit and the time measurement process of the time measurement unit.

  After that, after a certain period (for example, one year), when the third time or later manual correction using the operation unit by the user or the like is performed, the correction amount adjustment unit controls the correction amount adjustment each time. To adjust the setting correction amount adjusted in the previous correction amount adjustment control to the setting correction amount (appropriate correction amount) suitable for the subsequent use environment, and the setting correction amount stored in the storage unit Is updated to the latest setting correction amount (appropriate correction amount), and the correction unit corrects the oscillation frequency based on the latest setting correction amount (appropriate correction amount) until the next manual correction of the current time is performed. The display unit displays the current time obtained by the correction process of the correction unit and the time measurement process of the time measurement unit.

  As a result, it is possible to easily perform highly accurate time measurement suitable for the use environment without causing an increase in manufacturing cost, and it is possible to perform highly accurate time display on the display unit.

As one of the configurations for making the present invention more suitable,
The correction amount adjustment unit measures a manual correction time required for manual correction of the current time using the operation unit, and performs subtraction by subtracting the manual correction time in the first calculation process.

According to this configuration, in the first calculation process, the time correction amount from the current time before correction to the current time after correction is calculated, and the user or the like can manually correct the current time from the time correction amount obtained by this calculation. The manual correction time required is subtracted. Therefore, it is possible to obtain a more accurate time correction amount (delay time amount or advance time amount), and thereby it is possible to more appropriately adjust the set correction amount suitable for the use environment.
As a result, it is possible to perform time measurement with higher accuracy suitable for the use environment, and it is possible to perform time display on the display unit with higher accuracy.
In particular, this configuration is effective when a user or the like takes time to manually correct the current time using the operation unit.

As one of the configurations for making the present invention more suitable,
When the display on the display unit is reset due to power supply stop, the correction amount adjustment unit does not execute the correction amount adjustment control by manual correction of the current time using the operation unit performed after reset,
The correction unit performs the correction process based on the set correction amount before reset stored in the storage unit.

  For devices with built-in electronic timepiece devices, the display on the display unit of the electronic timepiece device is reset due to a power outage due to an event such as a power failure or unintentionally pulling out the power plug on the device side from a commercial power outlet. May be. Even when such a reset occurs, the correction amount adjustment unit performs the correction amount adjustment control based on the manual correction of the current time using the operation unit by the user or the like after the power supply is resumed. With this configuration, in the correction amount adjustment control at this time, the set correction amount is adjusted with an adjustment amount that has nothing to do with the use environment, which adversely affects the timing process after reset.

  Therefore, in this configuration, the correction amount adjustment unit does not execute the correction amount adjustment control in the manual correction of the current time using the operation unit that is performed after the reset, and thus is used in the correction process by the correction unit. It is possible to avoid that the set correction amount to be set is adjusted by an adjustment amount that has nothing to do with the use environment and adversely affect the timing process after reset.

  Since the correction unit performs the correction process based on the setting correction amount before reset stored in the storage unit even after resetting, the setting correction amount before reset is adjusted by the adjustment amount according to the use environment. If it is, it is possible to perform appropriate correction based on the set correction amount suitable for the use environment even in the correction processing after reset.

  In addition, when manual correction (retime setting) of the current time using the operation unit by the user or the like is performed after the power supply is resumed, the current time after manual correction at this time is stored in the storage unit as the correction time. In manual correction of the current time using the next operation unit, the elapsed time (usage period) from the manual correction time of the current time after reset to the current time after the next correction is obtained by the second calculation process. Can do.

  As a result, even if the display on the display unit is reset due to the power supply stop, the time after the re-time setting and the time display on the display unit based on this time can be correctly displayed, and the subsequent correction amount adjustment control The adjustment of the set correction amount can be correctly performed according to the use environment.

It is a block diagram which shows the structure of the electronic timepiece apparatus with a built-in apparatus. It is a flowchart which shows the operation | movement by correction amount adjustment control.

  Hereinafter, an example of an embodiment for carrying out the present invention will be described with reference to the drawings.

  As shown in FIG. 1, an electronic timepiece device 1 with a built-in device exemplified in this embodiment includes an oscillation circuit unit 2 having a crystal resonator 2A and the like, and a time measurement that performs a time measurement process based on an oscillation frequency from the oscillation circuit unit 2. Unit 3, correction unit 4 that performs an oscillation frequency correction process based on the set correction amount, display unit 5 that displays the current time obtained by the time measurement process of time measuring unit 3 and the correction process of correction unit 4, and display on display unit 5 The operation unit 6 that enables manual correction of the current time, the nonvolatile storage unit 7 that stores the set correction amount and stores the current time after manual correction using the operation unit 6 as the correction time, and the setting A correction amount adjustment unit 8 that executes correction amount adjustment control for adjusting the correction amount is provided. The oscillation circuit unit 2, the timing unit 3, the correction unit 4, the display unit 5, the operation unit 6, the storage unit 7, and the correction amount adjustment unit 8 are connected to be communicable or energized via a communication line, a power line, or the like. ing.

  The time measuring unit 3 includes a frequency dividing circuit 3A that divides the oscillation frequency from the oscillation circuit unit 2 to generate a 1 second signal, and a time counter 3B that counts the 1 second signal from the frequency dividing circuit 3A. Yes.

  The correction unit 4 is a part of a frequency divider circuit based on a set correction amount set in consideration of individual differences of the crystal resonator 2A obtained by actual measurement in a normal temperature (+ 25 ° C.) environment before shipment. The oscillation frequency is corrected using a logic slow / rapid system that adjusts by adjusting the pulse. Specifically, for example, if the oscillation frequency of the crystal unit 2A is 32.768 kHz, the frequency dividing circuit 3A normally generates a 1-second signal with 32767 pulses instead of generating a 1-second signal with 32768 pulses. Adjustments such as shortening the period of 1 second or generating a 1-second signal with 32769 pulses to increase the period of 1 second are performed for a set number of times (for example, once) per unit time (for example, 1 minute). By performing the oscillation frequency correction process based on the set correction amount set as described above, the time delay or advance is reduced.

  The display unit 5 displays the current time obtained by the time measurement process of the time measurement unit 3 and the correction process of the correction unit 4 by a liquid crystal panel or a 4-digit 7-segment LED display. In addition, the display unit 5 is configured such that when a user or the like inserts a power plug of a device into an outlet of a commercial power source in order to start using a device (for example, a remote control device for a hot water heater) incorporating the electronic timepiece device 1. , “00:00” is blinked as the current time to inform the user that the time has not been set.

  The operation unit 6 includes a first switch 6A that outputs an advance signal each time a pressing operation is performed, and a second switch 6B that outputs a delay signal each time the pressing operation is performed. The display unit 5 advances the current time being displayed in units of 1 minute based on the advance signal from the first switch 6A, and the current time being displayed in units of 1 minute based on the delay signal from the second switch 5A. Delay.

  As the storage unit 7, an EEPROM such as a flash memory is generally employed. The storage unit 7 at the time of shipment stores a set correction amount set before shipment. When manual correction of the current time using the operation unit 6 by the user or the like is performed after shipment, the storage unit 7 stores the current time after manual correction as the correction time.

The correction amount adjustment unit 8 executes correction amount adjustment control every time manual correction of the current time after the second time using the operation unit 6 is performed. In this correction amount adjustment control, the correction amount adjustment unit 8 calculates the time correction amount (delay time amount or advance time amount) from the current time before correction to the current time after correction, and stores Second calculation processing for calculating the elapsed time (use period) from the previous correction time stored in the unit 7 to the current time after correction, the time correction amount obtained by the first calculation processing, and the second calculation processing The third calculation process for calculating the adjustment amount (the amount of delay time or the advance time amount per unit time) based on the elapsed time, and the storage unit 7 based on the adjustment amount obtained by the third calculation process A correction amount adjustment process for adjusting the set correction amount is performed.
In the storage unit 7, the stored setting correction amount is updated to the setting correction amount after adjustment by the correction amount adjustment processing.
The correction unit 4 performs the above-described correction process based on the adjusted set correction amount stored and updated.

  With the above configuration, when a user or the like inserts the power plug of the device into a commercial power outlet in order to start using the device incorporating the electronic timepiece device 1, the time is set on the display unit 5. “00:00” informing the user that there is no data is flashed and displayed as the current time. Based on this display, when manual correction (time setting) of the current time using the operation unit 6 (first switch 6A or second switch 6B) by the user or the like is performed, the manual correction at this time is completed. Thus, the current time after manual correction is stored in the storage unit 7 as the correction time. After the first manual correction of the current time until the second manual correction of the current time is performed, the correction unit 4 performs an oscillation frequency correction process based on the set correction amount set before shipment. The display unit 5 displays the current time obtained by the time measurement process of the time measurement unit 3 and the correction process of the correction unit 4.

  Thereafter, after a certain period (for example, one year) has elapsed since the start of use of the device, when the second manual correction using the operation unit 6 by the user or the like is performed, the correction amount adjustment unit 8 sets the correction amount. Execute adjustment control. In this correction amount adjustment control, first, with the completion of manual correction, first calculation processing for calculating the time correction amount (delay time amount or advance time amount) at this time, and the correction time stored in the storage unit 7 A second calculation process for calculating an elapsed time (usage period) from the (current time after the first manual correction) to the current time after the second correction is performed. Next, based on the time correction amount (delay time amount or advance time amount) obtained in the first calculation process and the elapsed time (use period) obtained in the second calculation process, according to the use environment in this use period. 3rd calculation processing that calculates the adjustment amount (delay time amount or advance time amount per unit time) and the factory-set correction amount based on the adjustment amount obtained by this third calculation processing are suitable for the use environment A correction amount adjustment process for adjusting to the set correction amount (appropriate correction amount) is performed. Further, the set correction amount stored in the storage unit 7 is updated to the set correction amount (appropriate correction amount) obtained by the correction amount adjustment processing at this time. After the second manual correction of the current time until the third manual correction of the current time is performed, the correction unit 4 oscillates based on the set correction amount (appropriate correction amount) suitable for the use environment. A frequency correction process is performed, and the display unit 5 displays the current time obtained by the correction process of the correction unit 4 and the time measurement process of the time measuring unit 3.

  After that, after a certain period (for example, one year) has elapsed, if the user manually corrects the current time after the third time using the operation unit 6, the correction amount adjustment unit 8 performs the correction amount each time. Adjustment control is executed, and the setting correction amount adjusted in the previous correction amount adjustment control is adjusted to a setting correction amount (appropriate correction amount) suitable for the subsequent use environment, and stored in the storage unit 7. Until the setting correction amount is updated to the latest setting correction amount (appropriate correction amount) and the next manual correction of the current time is performed, the correction unit 4 is based on the latest setting correction amount (appropriate correction amount). Oscillation frequency correction processing is performed, and the display unit 5 displays the current time obtained by the correction processing of the correction unit 4 and the time measurement processing of the time measuring unit 3.

  As a result, it is possible to easily perform highly accurate timekeeping suitable for the use environment without causing an increase in manufacturing cost, and to display time with high accuracy by the display unit 5.

The adjustment of the set correction amount is a means such as adjustment of the pulse for generating a 1 second signal, adjustment of the unit time for adjusting the pulse, adjustment of the set number of pulse adjustment adjustments performed for each unit time, and the like. Can be considered.
The detection of the completion of manual correction of the current time is performed, for example, by installing a completion switch (not shown) in the operation unit 6 and detecting it based on an artificial operation of the completion switch, or the first switch 6A or the first switch Means such as detecting based on the absence of output from the first switch 6A and the second switch 6B within a set time after the pressing operation of the 2 switch 6B is considered.

  By the way, in the device incorporating the electronic timepiece device 1, for example, the display unit of the electronic timepiece device 1 is caused by power supply stoppage due to an event such as a power failure or unexpectedly pulling out the power plug on the device side from the outlet of the commercial power supply. The display at 5 may be reset. Even when such a reset occurs, the correction amount adjustment unit 8 performs the correction amount adjustment control based on manual correction of the current time using the operation unit 6 by the user after the power supply is resumed. With this configuration, in the correction amount adjustment control at this time, the set correction amount is adjusted with an adjustment amount that has nothing to do with the use environment, which adversely affects the timing process after reset. .

  Therefore, in this electronic timepiece device 1, when the display on the display unit 5 is reset due to the power supply stop, the correction amount adjustment unit 8 is described above in the manual correction of the current time using the operation unit 6 performed after the reset. The correction amount adjustment control is not executed. The correction unit 4 is configured to perform the above-described correction processing based on the set correction amount before reset stored in the storage unit 7.

  Thereby, it is possible to avoid the setting correction amount used in the correction process of the correction unit 4 being adjusted by the adjustment amount that has nothing to do with the use environment and adversely affecting the time measurement process after reset.

  And since the correction | amendment part 4 performs a correction process based on the setting correction amount before reset memorize | stored in the memory | storage part 7 even after reset, the setting correction amount before reset is an adjustment amount according to use environment. If adjusted, it is possible to perform appropriate correction based on the set correction amount suitable for the use environment even in the correction processing after reset.

  In addition, when manual correction (retime setting) of the current time using the operation unit 6 by the user or the like is performed after the power supply is resumed, the current time after the manual correction at this time is stored in the storage unit 7 as the correction time. Therefore, in the next manual correction of the current time using the operation unit 6, the elapsed time (use of the current time after the reset from the manual correction time after the reset to the current time after the next correction is obtained by the second calculation process described above. Period).

  As a result, even if the display on the display unit 5 is reset due to the power supply stop, the time after the re-time setting and the time display on the display unit based on the time measurement can be correctly performed, and the subsequent correction amount adjustment Adjustment of the set correction amount by control can be performed correctly according to the use environment.

[Another embodiment]
[1] The correction unit 4 may be configured to perform a correction process of the oscillation frequency using a capacity gradual method that increases or decreases the oscillation load capacity of the crystal resonator 2A. Further, the correction unit 4 may be configured to perform the correction process of the oscillation frequency by using this capacity slow / fast method together with the logical slow / fast method exemplified in the above embodiment.

[2] The correction amount adjustment unit 8 measures the manual correction time required for manual correction of the current time using the operation unit 6 by the user or the like, and subtracts the measured manual correction time in the first calculation process described above. It may be configured to perform subtraction.
According to this configuration, in the first calculation process, the time correction amount from the current time before correction to the current time after correction is calculated, and the user or the like can manually correct the current time from the time correction amount obtained by this calculation. The manual correction time required is subtracted. Therefore, it is possible to obtain a more accurate time correction amount (delay time amount or advance time amount), and thereby it is possible to more appropriately adjust the set correction amount suitable for the use environment.

  Note that the configuration disclosed in the above embodiment (including another embodiment, the same applies hereinafter) can be applied in combination with the configuration disclosed in the other embodiment as long as no contradiction arises. The embodiment disclosed in this specification is an exemplification, and the embodiment of the present invention is not limited to this. The embodiment can be appropriately modified without departing from the object of the present invention.

  The present invention can be applied to various devices such as a water heater and a heater having a timer function.

2 Oscillation circuit unit 2A Crystal oscillator 3 Timekeeping unit 4 Correction unit 5 Display unit 6 Operation unit 7 Storage unit 8 Correction amount adjustment unit

Claims (3)

An oscillation circuit unit having a crystal resonator, a time measurement unit that performs time measurement processing based on the oscillation frequency from the oscillation circuit unit, a correction unit that performs correction processing of the oscillation frequency based on a set correction amount, the time measurement processing, and the correction A display unit that displays the current time obtained by the processing, an operation unit that enables manual correction of the current time displayed on the display unit, and after the manual correction that stores the set correction amount and uses the operation unit A nonvolatile storage unit that stores the current time as a correction time, and a correction amount adjustment unit that executes correction amount adjustment control for adjusting the set correction amount,
The correction amount adjustment unit
The correction amount adjustment control is executed every time manual correction of the current time after the second time using the operation unit is performed,
In the correction amount adjustment control,
A first calculation process for calculating a time correction amount from the current time before correction to the current time after correction;
A second calculation process for calculating an elapsed time from the previous correction time stored in the storage unit to the current time after correction;
A third calculation process for calculating an adjustment amount based on the time correction amount obtained in the first calculation process and the elapsed time obtained in the second calculation process;
A correction amount adjustment process for adjusting the set correction amount based on the adjustment amount obtained in the third calculation process;
In the storage unit, the stored set correction amount is updated to the set correction amount after adjustment by the correction amount adjustment processing,
The correction unit is a built-in electronic timepiece device that performs the correction process based on the adjusted set correction amount stored and updated.   The apparatus according to claim 1, wherein the correction amount adjustment unit measures a manual correction time required for manual correction of the current time using the operation unit, and performs subtraction to subtract the manual correction time in the first calculation process. Built-in electronic clock device. When the display on the display unit is reset due to power supply stop, the correction amount adjustment unit does not execute the correction amount adjustment control by manual correction of the current time using the operation unit performed after reset,
The device-embedded electronic timepiece device according to claim 1, wherein the correction unit performs the correction processing based on the set correction amount before reset stored in the storage unit.

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