JP5994914B2 - Analog electronic clock - Google Patents

Description

  The present invention relates to an analog electronic timepiece using a pointer.

Conventionally, in an analog electronic timepiece that displays time by pointing a sign on the dial face using a hand, various times such as time correction, confirmation and correction of the position of the pointer, or reset of numerical values in the timer function and stopwatch function The fast-forward operation of the pointer is performed in the application.

In such a fast-forward operation, fast-forwarding in forward rotation (clockwise) or reverse rotation (counter-clockwise)
The fast-forward at is appropriately selected and used. In fast-forwarding operation, in many pointers, the fast-forwarding speed for forward rotation and the rapid-feeding speed for reverse rotation are different. Therefore, conventionally, when performing fast-forwarding of a guide whose movement destination pointer position is determined in advance, the time required to move from the current pointer position to the movement destination pointer position is determined for each of forward rotation and reverse rotation, There is a technique for quickly moving the pointer in a direction in which the pointer reaches the destination in a shorter time (for example, Patent Document 1).

Japanese Patent Application Laid-Open No. 5-93784

2. Description of the Related Art In recent years, there are analog electronic timepieces that realize a variety of function displays by driving more hands, each with an independent motor, in addition to hands displaying time such as hour hand and minute hand. In some analog electronic timepieces, power consumption is reduced by setting a driving voltage low when moving some hands in a predetermined direction. However, in the configuration of the conventional analog electronic timepiece, it is impossible to drive the hands with different driving voltages at the same time. Therefore, it is necessary to switch the driving voltages and to quickly feed the hands sequentially. Therefore, the conventional fast-forward technique has a problem that it may take time to finish the movement of all the hands.

An object of the present invention is to provide an analog electronic timepiece capable of fast-forward driving a pointer without time loss.

In order to achieve the above object, the present invention
Provided with drive control means for driving a plurality of hands with respective preset drive voltages,
The drive control means includes
An analog electronic timepiece characterized in that when the plurality of hands are moved in rapid traverse, the plurality of hands having the same drive voltage are moved simultaneously.

According to the present invention, an analog electronic timepiece has an effect that optimum fast-forwarding can be performed without time loss.

It is a front view which shows the analog electronic timepiece of 1st Embodiment of this invention. It is a block diagram which shows the internal structure of an analog electronic timepiece. It is a chart which shows the operation characteristic of each hand of the analog electronic timepiece of a 1st embodiment. It is a figure explaining the structure of the voltage control in a drive circuit. It is a flowchart which shows the example of the fast-forward control process by CPU of 1st Embodiment. It is a flowchart which shows the specific example of the fast-forward control process by CPU of 1st Embodiment. It is a front view of the analog electronic timepiece of the second embodiment. It is a block diagram which shows the internal structure of the analog electronic timepiece of 2nd Embodiment. It is a chart which shows the operation characteristic of each hand of the analog electronic timepiece of a 2nd embodiment. It is a flowchart which shows the specific example of the fast-forward control process by CPU of 2nd Embodiment. It is a flowchart which shows the specific example of the fast-forward control process by CPU of 2nd Embodiment. It is a flowchart which shows the specific example of the fast-forward control process by CPU of 2nd Embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[First Embodiment]
FIG. 1 is a front view of an analog electronic timepiece 1 according to a first embodiment of the present invention.

The analog electronic timepiece 1 of the first embodiment is an electronic wristwatch that can be worn on the user's wrist by the bands 10a and 10b. The analog electronic timepiece 1 includes an hour hand 2, a minute hand 3, which are rotatably provided between a casing 7, a dial 9, and a windshield glass (not shown) that covers the top of the dial 9.
And the second hand 4, the disk-shaped functional hand 5 provided at the lower portion of the dial 9, the push button switches B1 to B3 and the crown C1 provided on the side surface of the casing 7, and the peripheral portion of the windshield. Bezel 8 and the like.

The dial 9 is provided with 60 scales for displaying time on a circumference at regular intervals. Further, a small window 9 a is provided in the 6 o'clock direction of the dial 9, and one of the signs provided on the upper surface of the function hand 5 is selectively exposed at the upper part.
The hour hand 2, the minute hand 3, the second hand 4, and the function hand 5 are all provided with a rotation shaft at the center of the dial 9, and can be rotated 360 degrees. The function hand 5 displays the function mode being executed by the analog electronic timepiece 1. In the example of FIG. 1, the sign “WT” indicating the time display mode is a small window 9.
Exposed from a. The hour hand 2, the minute hand 3, and the function hand 5 are each configured to be able to indicate the angular position of 360 in 1 degree steps, and the second hand 4 is 6 in 6 degree steps.
The angle position of 0 can be indicated.

  FIG. 2 is a block diagram showing the internal configuration of the analog electronic timepiece 1.

The analog electronic timepiece 1 includes a CPU (Central Processing Unit) 11 (fast-forward setting means,
Initial setting means, drive voltage search means, fast-forward direction selection means) and ROM (Read Only Memory)
) 12, a RAM (Random Access Memory) 13, a power supply unit 14, an operation unit 15, an oscillation circuit 16, a frequency dividing circuit 17, a timing circuit 18, a drive circuit 52 as drive control means,
A stepping motor 42 that drives the hour hand 2 via the train wheel mechanism 32, a stepping motor 43 that drives the minute hand 3 via the train wheel mechanism 33, and a stepping motor 44 that drives the second hand 4 via the train wheel mechanism 34 And a stepping motor 45 that drives the functional needle 5 via the train wheel mechanism 35. The stepping motors 42 to 45 constitute driving means.

The CPU 11 performs various arithmetic processes and controls and operates the entire analog electronic timepiece 1. The ROM 12 stores various control programs and application programs executed by the CPU 11 and initial setting data. The program stored in the ROM 12 includes the rotation direction and rotation order of the hands 2 to 5 when the hour hand 2, the minute hand 3, the second hand 4 and the function hand 5 (hereinafter collectively referred to as hands 2 to 5) are fast-forwarded. A fast-forward setting program 12a to be set is included.

The RAM 13 is a volatile memory that provides a working memory space for the CPU 11 and stores programs and temporary data read out from the ROM 12 and expanded at the time of execution.

The power supply unit 14 supplies power to each unit of the CPU 11 and the analog electronic timepiece 1. Operation unit 1
5 converts an input operation to the push button switches B1 to B3 and the crown C1 by the user into an electric signal and outputs it to the CPU 11.

The oscillation circuit 16 is a crystal oscillation circuit, for example, and outputs a predetermined frequency signal. The frequency dividing circuit 17 receives a predetermined frequency signal input from the oscillation circuit 16 as a time measuring circuit 18 and a CPU 11.
Are converted into various frequencies used by the output. The timer circuit 18 holds the current time data by counting the 1 Hz signal generated by the frequency divider circuit 17.

The drive circuit 52 outputs drive pulses having predetermined voltages and pulse widths to the stepping motors 42 to 45 based on control signals related to the operations of the hands 2 to 5 input from the CPU 11. Each of the stepping motors 42 to 45 is rotated by a driving pulse input from the driving circuit 52 (for example, 180 degrees), and the pointers 2 to 5 are independently provided at a predetermined gear ratio via the gear train mechanisms 32 to 35. To drive. Here, the stepping motors 42 to 45 can move the hands 2 to 5 in the forward direction and the reverse direction, respectively. Stepping motor 4
2 to 45 indicate the pointer 2 for each of the cases where the pointers 2 to 5 are moved in the forward direction or the reverse direction.
In consideration of the conditions such as the torque of each of -5, the maximum driving frequency at which the stepping motors 42 to 45 can drive the hands 2 to 5 earliest and the driving voltage required to drive the hands 2 to 5 are set. In the fast-forward operation, this maximum drive frequency is normally set to the fast-forward drive frequency (fast-forward speed), and the hands 2 to 5 are driven. Further, as will be described later, the maximum drive frequency and drive voltage in the forward direction are often larger than the maximum drive frequency and drive voltage in the reverse direction.

FIG. 3 is a chart showing the drive voltage and the maximum drive frequency when driving the hands 2 to 5 in the normal rotation or reverse rotation.

In the analog electronic timepiece 1 of this embodiment, the driving voltages of the hour hand 2, the minute hand 3, and the second hand 4 (collectively referred to as time hands 2 to 4) are driven in the forward direction and in the reverse direction. In either case, it is set to 1.6V. The driving frequency of the time hands 2 to 4 can be set to a maximum of 64 pps (pulses per second) in the case of driving in the forward rotation direction, but can be set to a maximum of 32 pps in the case of driving in the reverse rotation direction. It can be set. On the other hand, the drive voltage of the functional needle 5 is set to 1.9 V when driven in the forward direction, and is set to 1.6 V when driven in the reverse direction. Further, the drive frequency of the functional needle 5 is a maximum of 64 pps in the case of forward drive, and a maximum of 32 pps in the case of reverse drive. The drive of a disk-shaped pointer like the function hand 5 may require a higher driving voltage than the driving of the needle-shaped hands like the time hands 2 to 4. The driving voltage for the minute hand 3 and the second hand 4 includes settings for a correction pulse and a long pulse, which will be described later.

  FIG. 4 is a diagram for explaining the configuration of the drive circuit 52.

The drive circuit 52 outputs drive pulses as operation signals to the stepping motors 42 to 45 that drive the pointers 2 to 5 to be driven based on the control signal from the CPU 11. As this drive pulse, there are a normal pulse (forward rotation pulse) for driving the hands 2 to 5 in the forward direction and a reverse pulse for driving the hands 2 to 5 in the reverse direction. The drive voltage of each of these drive pulses is set in advance, and the set drive voltage is selected and output under software control from the regulator. Accordingly, it is not possible to simultaneously output drive pulses having different drive voltages. Further, the drive circuit 52 is provided with a rotation detection unit that detects whether or not the second hand 4 and the minute hand 3 are appropriately driven, and it is detected that the second hand 4 or the minute hand 3 is not properly driven. In some cases, the driving circuit 52 immediately sets a correction pulse in which the driving voltage is set higher than that of the normal pulse and the reverse pulse (for example, 2.2 V), or a long pulse having a pulse width longer than that of the normal pulse and the reverse pulse (drive). For example, by outputting 1.6 V), the pointer is driven again.
Note that the output voltages 2.2V and 1.6V in these cases are preferentially output values, and the drive pulses of these voltages are output simultaneously as the forward rotation pulse or the reverse rotation pulse of other pointers. I can not.

Next, the fast-forward operation of the hands in the analog electronic timepiece 1 of the first embodiment will be described.

FIG. 5 is a flowchart showing a control procedure of the pointer fast-forward process executed by the CPU 11.

This pointer fast-forwarding process is called and executed by the CPU 11 when switching between a time display function and other various functions, for example, when fast-forwarding with a predetermined movement destination of the pointer is performed.

When the pointer fast-forward process is called, the CPU 11 first performs forward / reverse determination for fast-forwarding individually for each of the pointers 2 to 5 (step S11). Specifically, the CPU 11 determines the pointers 2-5.
The current pointer position and the pointer position of the movement destination are acquired. And hour hand 2, minute hand 3, and
For the function hand 5, the number of movement steps in the forward direction from the current position to the movement destination position is 24.
When the number of moving steps is larger than 240 steps, the CPU 11 determines to fast-forward by reverse rotation when the number of movement steps is larger than 240 steps. For the second hand 4, when the number of movement steps in the forward rotation direction from the current position to the movement destination position is 40 steps or less, the CPU 11 determines that the second hand 4 is fast-forwarded by forward rotation, and the number of movement steps Is larger than 40 steps, the CPU 11 determines to fast-forward the second hand 4 by reverse rotation.

Next, the CPU 11 obtains the fast-forward drive voltage that the drive circuit 52 supplies to the stepping motor when fast-forwarding each pointer to be fast-forwarded, and determines whether or not all the fast-forward drive voltages are the same (step S12). ). If it is determined that all the fast-forward drive voltages are the same, the process of the CPU 11 proceeds to the process of step 17. On the other hand, if it is determined that different fast-forward drive voltages are mixed, the CPU 11 subsequently reverses the fast-forward direction of one of the hands from the determined direction, so that the drive voltage is driven by the other hand. It is determined whether or not the voltage may be equal (step S13). If it is determined that the drive voltages are not equal, the processing of the CPU 11 proceeds directly to step S17. When it is determined that the drive voltages may be equal, the CPU 11 does not reverse the fast-forwarding direction and the fast-forwarding direction when reversing the fast-forwarding direction and fast-forwarding with other hands having the same driving voltage. The fast-forwarding time when fast-forwarding in turn is calculated (step S1).
4) It is determined whether or not the fast-forward time when the fast-forward direction is reversed is shorter than the fast-forward time when the fast-forward direction is not reversed (step S15). If it is determined that the fast-forwarding time is not shortened by the reversal, the processing of the CPU 11 proceeds to step S17 as it is. When it is determined that the fast-forwarding time is shortened by the reversal, the CPU 11 reverses the fast-forwarding direction of the pointer (step S16). Then, the processing of the CPU 11 proceeds to step S17.

When the processing of the CPU 11 proceeds to step S17, the CPU 11 moves each fast-forward target needle in the fast-forward direction set in order for each drive voltage. That is, in the case of only one drive voltage, the CPU 11 starts fast-forwarding simultaneously for all the hands that are targets of fast-forwarding, and continues fast-forwarding until reaching the fast-forwarding destination position at each fast-forwarding frequency. On the other hand, when only the driving voltage of the stepping motor that drives one needle is different from the other driving voltages,
The CPU 11 causes the other pointers to be fast-forwarded with the other driving voltage, and after the fast-forwarding of these other pointers is completed, the driving voltage is switched to drive the remaining one pointer. Then, when the fast-forwarding of all the hands is finished, the CPU 11 finishes the needle fast-forwarding process.
In addition, when the driving of the second hand 4 or the minute hand 3 fails with a driving pulse during fast-forwarding movement, when the second hand 4 or the minute hand 3 is driven at a driving voltage of 1.6 V in the reverse direction at 32 pps, for example, It is possible to insert a 2.2V correction pulse at a timing at which the second hand 4 or minute hand 3 drive signal is not output with respect to the 64 Hz drive signal. On the other hand, in the case of driving in the forward direction at 64 pps, for example, after completing the series of fast-forwarding operations, before the transition to the fast-forwarding operation with the next driving voltage, the correction is made for the number of times the driving has failed. A pulse or long pulse is inserted.

FIG. 6 is a flowchart showing a specific control procedure when the hour hand 2 and the function hand 5 are fast-forwarded in the pointer fast-forward process.

First, the CPU 11 determines the fast feed direction of the hour hand 2 and the function hand 5 (step S110).
). The CPU 11 acquires the rapid feed direction of the hour hand 2 and the number of movement steps Nh in the direction, and the rapid feed direction of the function hand 5 and the number of movement steps Nf in the direction. As shown in FIG. 3, the driving voltage of the stepping motor 42 is 1.6 V, regardless of whether the hour hand 2 is driven in the forward direction or the reverse direction. The driving voltage of the stepping motor 45 when the functional hand 5 is driven in the forward direction is 1.9V, and the driving voltage when it is driven in the reverse direction is 1.6V. Therefore, the CPU 11 determines whether or not the fast-forward direction of the function hand 5 is the forward rotation direction (step S120). When it is determined that the fast-forward direction of the function hand 5 is not the forward rotation direction, the driving voltage for fast-forwarding the hour hand 2 and the function hand 5 is 1.
The CPU 11 sends a control signal to the drive circuit 52 to cause the hour hand 2 to fast-forward the determined number of steps Nh in the determined fast-forward direction, and to fast-forward the function hand 5 with the reverse of the number of steps Nf (step S170). Then, the CPU 11 ends the pointer fast-forward process.

If it is determined in step S120 that the fast-forwarding direction of the function hand 5 is the forward rotation direction, the driving voltages for fast-forwarding the hour hand 2 and the functional hand 5 are different regardless of the fast-forwarding direction of the hour hand 2. It will be. Therefore, the CPU 11 next reverses the fast-forward direction of the functional hand 5 to make it coincide with the fast-feed drive voltage of the hour hand 2, and fast-forward when the fast-drive drive is performed sequentially with different drive voltages. Processing for calculating and comparing time is performed. First, the CPU 11
Determines whether or not the fast-forward direction of the hour hand 2 is the forward rotation direction (step S130). If it is determined that the fast-forward direction of the hour hand 2 is the forward rotation direction, the CPU 11 then makes the hour hand 2
Is the sum of the time required to fast-forward the function needle 5 in the forward rotation direction at 64 pps and the time required to fast-forward the function hand 5 in the forward rotation direction at the step number Nf at 64 pps. It is determined whether or not the number of steps (360-Nf) is shorter than the time for fast-forwarding (step S151). Here, the number of steps Nh is 240 or less, and the number of steps (360−Nf) is 120 or more. Accordingly, the time Nh / 64 for driving the hour hand 2 in the forward direction is 3.75 seconds at the maximum, and the time for driving the functional hand 5 in the reverse direction (360−
Nf) / 32 (minimum 3.75 seconds) or less, the fast-forwarding time when the fast-forward direction of the functional hand 5 is reversed is determined by the time required for fast-forwarding of the functional hand 5.

When it is determined that the sum of the time for which the hour hand 2 and the function hand 5 are forward-forwarded in order is shorter than the time for which the function hand 5 is fast-forwarded in reverse rotation, the CPU 11 sends a control signal to the drive circuit 52, After the hour hand 2 is fast-forwarded by the step number Nh forward rotation, the function hand 5 is fast-forwarded by the step number Nf forward rotation (step S181). Then, the CPU 11 ends the pointer rapid feed process. On the other hand, when it is determined that the sum of the time for which the hour hand 2 and the function hand 5 are forward-forwarded in the forward direction is longer than the time for which the function hand 5 is fast-forwarded in the reverse direction, the CPU 11 sends a control signal to the drive circuit 52. The hour hand 2 is fast-forwarded with the step number Nh forward rotation, and the function hand 5 is moved with the step number (360).
-Nf) Fast forward with reverse rotation (step S171). Then, the CPU 11 ends the pointer rapid feed process.

Next, when it is determined in the determination processing in step S130 that the fast-forward direction of the hour hand 2 is the reverse direction, the CPU 11 then sets the time and function hand to fast-forward the hour hand 2 in the reverse direction of the step number Nh at 32 pps. Determine whether or not the sum of the time required to fast-forward 5 in the forward direction in step number Nf at 64 pps is less than the time required to reverse the fast-forward direction in function needle 5 and fast-forward in step number (360-Nf) in the reverse direction in 32 pps (Step S152). Here, the step number Nf is 240 or less, and the step number Nh, (360−Nf) is 120 or more. Therefore, the time Nh / 32 for driving the hour hand 2 in the reverse direction is 3.75 seconds at the maximum,
This time is the time to drive the functional needle 5 in reverse (360-Nf) / 32 (minimum 3.75 seconds)
It becomes as follows.

If it is determined that the time for fast-forwarding the hour hand 2 by reverse rotation and then the fast-forwarding of the functional hand 5 by forward rotation is shorter than the time for fast-forwarding the functional hand 5 by reverse rotation, the CPU 11 reverses the hour hand 2 by the number of steps Nh. Then, the function hand 5 is fast-forwarded by the step number Nf forward rotation (step S182). Then, the CPU 11 ends the pointer rapid feed process. On the other hand, if it is determined that the time to fast-forward the functional hand 5 in the forward direction after the hour hand 2 has been fast-forwarded in the reverse direction is longer than the time to fast-forward the functional hand 5 in the reverse direction, the CPU 11 sets the hour hand 2 to the number of steps. The function needle 5 is fast-forwarded by reversing the number of steps (360-Nf) while being fast-forwarded by Nh reverse rotation (step S172). Then, the CPU 11 ends the pointer rapid feed process.

As described above, the analog electronic timepiece 1 according to the first embodiment includes the hour hand 2, the minute hand 3, the second hand 4, and the function hand 5, and these hands 2 to 5 are driven by drive pulses input from the drive circuit 52. The stepping motors 42 to 45 that are operated are independently driven. Further, in these stepping motors 42 to 45, a maximum drive frequency and a drive voltage are set for each of the case where the hands 2 to 5 are driven in the normal direction and the case where the hands are driven in the reverse direction. And for example,
When the hour hand 2 and the function hand 5 are the needles to be fast-forwarded, first, the current position of the hour hand 2 and the function hand 5, the fast-forward destination position, the fast-forward drive frequency (maximum drive frequency) in the forward direction, and the reverse Based on the fast-forward drive frequency at, a fast-forward direction for moving the hour hand 2 and the function hand 5 to the fast-forward destination position in a shorter fast-forward time is set. At this time, if the drive voltage is different from the drive voltage of the hour hand 2 because the fast feed direction of the function hand 5 is set to the forward rotation direction, the drive voltage is reversed by reversing the fast feed direction of the function hand 5 in the reverse direction. Same as hour hand 2, functional hand 5 and hour hand 2
The fast-forwarding time when the functional hand 5 is fast-forwarded and the fast-forwarding direction of the functional hand 5 is kept in the normal rotation direction, and the fast-forwarding time when the fast-forwarding of the functional hand 5 and the fast-forwarding of the hour hand 2 are separately performed in order are calculated. And compare. When the rapid feed time is shortened by reversing the fast feed direction of the functional hand 5, the fast feed direction of the functional hand 5 is reversed and fast feed is performed. As described above, when the driving voltages of the pointers 2 to 5 are individually set, even if the time required for fast-forwarding of the individual pointers is not the shortest,
Since the fast-forwarding operation is performed by searching for a case where the fast-forwarding time is shortened as a whole, an increase in the time required for fast-forwarding can be suppressed while reducing power consumption.

In addition, after completing the fast-forwarding of the pointer related to one drive voltage, it shifts to the fast-forwarding of the pointer related to the other driving voltage, so the fast-forwarding of the pointer related to a plurality of driving voltages is completed in the minimum necessary time with simple control. It can be made.

[Second Embodiment]
Next, an analog electronic timepiece according to the second embodiment will be described.
FIG. 7 is a front view of the analog electronic timepiece 1a of the second embodiment. FIG. 8 is a block diagram showing an internal configuration of the analog electronic timepiece 1a according to the second embodiment.

The analog electronic timepiece 1a according to the second embodiment includes a needle-like functional hand 5a and a date wheel 6 exposed from the small window 9b instead of the disk-like functional hand 5 exposed from the small window 9a. ing. The date wheel 6 is driven via the train wheel mechanism 36 by a stepping motor 46 that operates according to the drive pulse output from the drive circuit 52. The date indicator 6 is provided with signs indicating the dates for 31 days from 1 to 31 at equal intervals, and makes a round on the lower surface of the dial 9 by rotating operation of 4650 steps in total of 150 steps per day. About another structure, it is the same as that of the analog electronic timepiece 1 of 1st Embodiment, attaches | subjects the same code | symbol and abbreviate | omits description. Further, the overall control procedure of the pointer fast-forward process executed by the CPU 11 of the analog electronic timepiece 1a is the same as the control procedure in the analog electronic timepiece 1 of the first embodiment shown in FIG.

FIG. 9 shows the driving voltage and the maximum driveable frequency when the hour hand 2, the minute hand 3, the second hand 4, the function hand 5, and the date wheel 6 are rotated forward and backward in the analog electronic timepiece 1a of the second embodiment. It is the chart which showed. 10 to 12 are flowcharts showing a specific example of the control procedure of the pointer fast-forward process in setting the drive voltage.

In this analog electronic timepiece 1a, all the hands 2 to 6 can be fast-forwarded in the forward direction at 64pps, and can be fast-forwarded in the reverse direction at 32pps. The driving voltage for driving the second hand 4 and the functional hand 5 in the forward rotation is 1.9 V, whereas the driving voltage for driving in the reverse rotation is 1.6 V. The drive voltage for driving the minute hand 3 and the date indicator 6 is 1.9 V in both cases of forward drive and reverse drive. The driving voltage for driving the hour hand 2 is 1.6 V in both cases of forward driving and reverse driving.

10 to 12, the control procedure when the second hand 4, the hour hand 2, and the function hand 5 are driven to fast-forward will be described.

First, the CPU 11 performs normal fast forward / reverse determination processing individually for the second hand 4, the hour hand 2, and the function hand 5 to be fast forwarded (step S <b> 110). Further, the CPU 11 determines the number of movement steps Ns of the second hand 4 in the fast-forward direction determined in this process, the number of movement steps Nh of the hour hand 2,
And the movement step number Nf of the function hand 5 is set respectively. Next, the CPU 11 determines whether there is driving with a different driving voltage. The CPU 11 determines whether or not the fast-forward direction of the second hand 4 is normal rotation (step S121). When it is determined that the fast feed direction of the second hand 4 is normal rotation, the CPU 11 subsequently determines whether or not the fast feed direction of the function hand 5 is normal rotation (step S122).

When it is determined that the fast feed direction of the function hand 5 is normal rotation, the CPU 11 determines whether or not the fast feed direction of the hour hand 2 is the normal rotation direction (step S131). When it is determined that the fast feed direction of the hour hand 2 is the forward direction, the second hand 4 and the function hand 5 are set to fast forward in the forward direction with a driving voltage of 1.9V, and the hour hand 2 is set to 1.6V. This means that fast-forwarding is set in the forward direction with the drive voltage. Among these, when the second hand 4 and the function hand 5 are fast-forwarded in the reverse direction, the driving voltage becomes 1.6V.

In this case, next, in the process of step S153, the CPU 11 fast forwards the second hand 4 and the function hand 5 respectively by the forward rotation of the number of steps Ns and Nf, and subsequently forwards the hour hand 2 of the forward rotation by the number of steps Nh. Fast-forwarding time max (Ns, Nf) / 64 + Nh / 64 in the case where the second hand 4 and the function hand 5 are fast-forwarded in the reverse direction, and at the same time, the fast-forwarding time when the hour hand 2 is fast-forwarded in the forward direction (360-Nf) / 32 It is determined whether or not: Here, the function max (A,
B,..., N) indicate the maximum value among A, B. Further, when the fast feed direction of the second hand 4 is reversed, the maximum time required for fast feed of the second hand 4 is 59/32 seconds, and when the fast feed direction of the function hand 5 is reversed, the minimum time required for fast feed of the function hand 5 is 120. Since the maximum time required for rapid feed of the hour hand 2 is 240/64 seconds, the fast feed time when the fast feed direction of the second hand 4 and the function hand 5 is reversed is determined by the fast feed time of the function hand 5. If it is determined that the fast-forward time is shorter when the second hand 4 and the function hand 5 are fast-forwarded in the reverse direction, the process branches to “NO”.
The CPU 11 sends a control signal to the drive circuit 52 to fast-forward the second hand 4 in the reverse direction of the step number (60-Ns) with a driving voltage of 1.6 V, and the function hand 5 to the step number (360-Nf).
) The process of fast-forwarding in the reverse direction and the process of fast-forwarding the hour hand 2 in the forward direction of the number of steps Nh are performed in parallel (step S173). Then, when all of the fast-forwarding of the second hand 4, the hour hand 2, and the function hand 5 is completed, the CPU 11 ends the pointer fast-forwarding process. Second hand 4 and function hand 5
If it is determined that the fast-forwarding time is shorter when fast-forwarding with a forward rotation, “YES”
Then, the CPU 11 outputs a control signal to the drive circuit 52. First, the second hand 4 is fast-forwarded in the forward direction of the step number Ns with a drive voltage of 1.9 V, and the function hand 5 is forwarded by the step number Nf. Fast forward in the rolling direction. Then, the CPU 11 fast-forwards the hour hand 2 in the forward rotation direction by the step number Nh with a driving voltage of 1.6 V (step S183). Then, the CPU 11 ends the pointer rapid feed process.

If it is determined in step S131 that the fast-forward direction of the hour hand 2 is the reverse direction, the second hand 4 and the function hand 5 are set to fast-forward in the forward direction with a driving voltage of 1.9V.
The hour hand 2 is set to fast-forward in the reverse rotation direction with a driving voltage of 1.6V. The drive voltage when the second hand 4 and the function hand 5 are fast-forwarded in reverse is 1.6V. Therefore, step S15
In the process of No. 4, the CPU 11 has a fast-forward time max (Ns, Nf) / 64 + Nh / 32 when the second hand 4 and the function hand 5 are fast-forwarded by forward rotation and then the hour hand 2 is fast-forwarded by reverse rotation.
It is determined whether the second hand 4 and the function hand 5 are fast-forwarded by reverse rotation and the fast-forward time (360-Nf) / 32 or less when the hour hand 2 is fast-forwarded by reverse rotation. If it is determined that the fast-forwarding time is shorter when the second hand 4 and the function hand 5 are fast-forwarded in the reverse direction, the process branches to “NO” and C
PU 11 is a driving voltage of 1.6 V, a process of fast-forwarding the second hand 4 in the reverse direction of the step number (60-Ns), a process of fast-forwarding the functional hand 5 in the reverse direction of the step number (360-Nf), and an hour hand 2 Is performed in parallel with the process of fast-forwarding in the reverse direction in the number of steps Nh (step S1).
74). Then, the CPU 11 ends the pointer rapid feed process. If it is determined that the fast-forwarding time is shorter when the second hand 4 and the function hand 5 are fast-forwarded in the forward direction, the process branches to “YES”, and the CPU 11 first starts with the driving voltage of 1.9 V. Is fast-forwarded in the step number Ns forward rotation direction, and the function hand 5 is fast-forwarded in the step number Nf forward rotation direction. Then CP
U11 fast-forwards the hour hand 2 in the reverse direction of the step number Nh with a driving voltage of 1.6 V (step S184). Then, the CPU 11 ends the pointer rapid feed process.

Next, when it is determined in step S122 that the fast-forward direction of the function hand 5 is not the forward direction, the CPU 11 determines that the fast-forward direction of the hour hand 2 is the forward direction as shown in FIG. It is determined whether or not there is (step S132). If it is determined that the fast-forward direction of the hour hand 2 is the forward direction, the second hand 4 is set to fast-forward in the forward direction with a drive voltage of 1.9 V,
The function hand 5 and the hour hand 2 are set to fast-forward in the reverse direction and the forward direction, respectively, with a driving voltage of 1.6V. At this time, when the second hand 4 is fast-forwarded in the reverse direction, the drive voltage is 1
. It becomes 6V.

In this case, next, in the process of step S155, the CPU 11 causes the second hand 4 to fast-forward with the step number Ns forward rotation, and subsequently causes the function hand 5 to fast-forward with the step number Nf reverse rotation and the hour hand 2 to forward with the step number Nh forward. Fast forward time Ns / 64 + max (N
f / 32, Nh / 64), when the second hand 4 and the function hand 5 are fast-forwarded by reverse rotation and the hour hand 2 is fast-forwarded by normal rotation, the fast-forwarding time max ((60−Ns) / 32, Nf / 32, Nh
/ 64) It is determined whether or not. If it is determined that the fast-forwarding direction of the second hand 4 is reversed and fast-forwarding is reversed, it is determined that the fast-forwarding time is shorter.
. A process of rapidly feeding the second hand 4 in the reverse direction of the step number (60-Ns) with a driving voltage of 6 V, a process of rapidly feeding the functional hand 5 in the reverse direction of the step number Nf, and a fast forward of the hour hand 2 in the forward direction of the step number Nh The process to be performed is performed in parallel (step S175). CPU 1
1 finishes the pointer fast-forward process. If it is determined that the fast-forward time is shorter when the second hand 4 is fast-forwarded, the process branches to “YES”, and the CPU 11 first sets the second hand 4 to the number of steps Ns positive with a driving voltage of 1.9V. Fast forward in the rolling direction. Then, CPU11 is 1.6V
The function hand 5 is fast-forwarded in the reverse direction of the step number Nf and the hour hand 2 is fast-forwarded in the forward direction of the step number Nh with the drive voltage of (Step S185). Then, the CPU 11 ends the pointer rapid feed process.

If it is determined in step S132 that the fast-forward direction of the hour hand 2 is the reverse direction, the second hand 4 is set to fast-forward in the forward direction with a driving voltage of 1.9 V, and the functional hand 5 and the hour hand 2 is set to fast-forward in the reverse direction with a driving voltage of 1.6V. Here, the second hand 4
The drive voltage when is fast-forwarded in the reverse direction is 1.6V. Therefore, step S15
In the process of No. 6, the CPU 11 has a fast-forwarding time Ns / 64 + max (Nf, Nh) / 32 when the second hand 4 is fast-forwarded by forward rotation and then the functional hand 5 and hour hand 2 are fast-forwarded by reverse rotation.
Rapid feed time ma when the second hand 4, the function hand 5 and the hour hand 2 are all fast-forwarded in reverse in parallel
It is determined whether or not x (60−Ns, Nf, Nh) / 32 or less. Second hand 4, function hand 5,
If it is determined that the fast-forwarding time is shorter when all the hour hands 2 are fast-forwarded in the reverse direction,
Branching to “NO”, the CPU 11 sets the second hand 4 to the step number (60−
Ns) The process of fast-forwarding in the reverse direction, the process of fast-forwarding the functional hand 5 in the reverse direction of the step number Nf, and the process of fast-forwarding the hour hand 2 in the reverse direction of the step number Nh are performed in parallel (step S176). Then, the CPU 11 ends the pointer rapid feed process. If it is determined that the fast-forward time is shorter when the second hand 4 is forward-rotated in the normal direction, the process branches to “YES” and the CPU
11. First, the second hand 4 is fast-forwarded in the forward direction of the step number Ns with a driving voltage of 1.9V.
The CPU 11 then fast-forwards the function hand 5 with the driving voltage of 1.6 V in the reverse direction of the step number Nf and fast-forwards the hour hand 2 in the reverse direction of the step number Nh (step S18).
6). Then, the CPU 11 ends the pointer rapid feed process.

Next, when it is determined in step S121 that the fast feed direction of the second hand 4 is the reverse rotation direction, the CPU 11 determines that the fast feed direction of the function hand 5 is the normal rotation direction as shown in FIG. Whether or not (step S123). When it is determined that the fast feed direction of the function hand 5 is the forward rotation direction, the CPU 11 determines whether or not the fast feed direction of the hour hand 2 is the forward rotation direction (step S133). When it is determined that the fast-forwarding direction of the hour hand 2 is the forward direction, the functional hand 5 is set to fast-forward in the forward direction with a driving voltage of 1.9V, and the second hand 4 and the hour hand 2 are set to 1.6V. Fast drive is set in the reverse rotation direction and the normal rotation direction, respectively, with the drive voltage. At this time, when the functional hand 5 is fast-forwarded in the reverse direction, the drive voltage is 1.6V.
become.

In this case, next, in the process of step S157, the CPU 11 causes the functional hand 5 to fast-forward with the step number Nf forward rotation, and subsequently causes the second hand 4 to fast-forward with the step number Ns reverse rotation, and simultaneously moves the hour hand 2 to the step number Nh. Fast forward time Nf / 64 + max (
Ns / 32, Ns / 64) reverses the fast-forward direction of the function hand 5 and fast-forwards the function hand 5 and the second hand 4 in the reverse direction and fast-forwards the hour hand 2 in the forward direction (360− N
f) Determine whether it is less than / 32. Here, the maximum rapid traverse time of the second hand 4 is 59/32
The maximum fast-forward time of the second and hour hands 2 is 240/64 seconds, whereas the minimum fast-forward time when the fast-forward direction of the function hand 5 is reversed is 120/32 seconds. Therefore, the fast-forward direction of the function hand 5 is reversed. In this case, the rapid traverse time is determined by the rapid traverse time of the function hand 5. If it is determined that the fast-forwarding time is shorter when the functional needle 5 is fast-forwarded in the reverse direction, the process branches to “NO” and the CPU
11 is a driving voltage of 1.6 V, a process of fast-forwarding the second hand 4 in the reverse direction of the step number Ns, a process of fast-forwarding the functional hand 5 in the reverse direction of the step number 360-Nf, and a process of rotating the hour hand 2 forward by the number of steps Nh. The process of fast-forwarding in the direction is performed in parallel (step S177). And C
The PU 11 ends the pointer fast-forward process. If it is determined that the fast-forwarding time is shorter when the function hand 5 is forward-rotated in the normal direction, the process branches to “YES”, and the CPU 11 first sets the function hand 5 to the number of steps with a driving voltage of 1.9V. Nf fast-forward in the forward direction. Then, the CPU 11 fast-forwards the second hand 4 in the reverse direction of the step number Ns and fast-forwards the hour hand 2 in the forward direction of the step number Nh with a driving voltage of 1.6 V (step S187). And CPU11
Finishes the pointer fast-forward process.

If it is determined in step S133 that the fast-forward direction of the hour hand 2 is the reverse direction, the functional hand 5 is set to fast-forward in the forward direction with a driving voltage of 1.9 V, and the second hand 4 and the hour hand are set. 2 is set to fast-forward in the reverse direction at a driving voltage of 1.6V. Here, the drive voltage when the functional hand 5 is fast-forwarded in the reverse direction is 1.6V. Therefore, in the processing of step S158, the CPU 11 fast-forwards when the function hand 5 is fast-forwarded by forward rotation and then the second hand 4 and hour hand 2 are fast-forwarded by reverse rotation Nf / 64 + max (Ns, Nh)
/ 32 is the rapid feed time (360-Nf) / 32 or less when the fast forward direction of the functional hand 5 is reversed and the functional hand 5, the second hand 4, and the hour hand 2 are fast reversed in parallel. It is determined whether or not. If it is determined that the fast-forwarding time is shorter when the function hand 5 is fast-forwarded in reverse,
The process branches to “NO”, and the CPU 11 causes the second hand 4 to fast-forward in the reverse direction of the step number Ns and the process of causing the functional hand 5 to fast-forward in the reverse direction of the step number (360−Nf) with a driving voltage of 1.6V. And the process of rapidly moving the hour hand 2 in the reverse direction of the number of steps Nh is performed in parallel (
Step S178). Then, the CPU 11 ends the pointer rapid feed process. If it is determined that the fast-forwarding time is shorter when the function hand 5 is forward-rotated in the forward direction, the process branches to “YES”.
First, the CPU 11 fast-forwards the function hand 5 in the forward direction of the step number Nf with a driving voltage of 1.9V. The CPU 11 then fast-forwards the second hand 4 and the hour hand 2 in the reverse direction of the number of steps Ns and Nh, respectively, with a driving voltage of 1.6 V (step S188). CPU 1
1 finishes the pointer fast-forward process.

When it is determined in step S123 that the fast-forward direction of the function hand 5 is the reverse direction, the second hand 4, the function hand 5, and the hour hand 2 are driven regardless of the fast-forward direction of the hour hand 2. Are all 1.6V. Therefore, in this case, the second hand 4, the function hand 5,
And by driving the hour hand 2 in parallel as it is, the fast-forwarding time can be minimized. The CPU 11 determines whether or not the fast-forward direction of the hour hand 2 is the forward rotation direction (step S).
124) When it is determined that the direction is the forward rotation direction, the CPU 11 moves the second hand 4 to the number of steps N.
The process of fast-forwarding by s reverse rotation, the process of fast-forwarding the functional hand 5 by reverse of the step number Nf, and the process of fast-forwarding the hour hand 2 by forward rotation of the step number Nh are performed in parallel (step S179).
Then, the CPU 11 ends the pointer rapid feed process. On the other hand, when it is determined that the fast-forwarding direction of the hour hand 2 is the reverse direction, the CPU 11 performs a process of fast-forwarding the second hand 4 with the reverse number of steps Ns and a process of fast-forwarding the functional hand 5 with the reverse number of steps Nf. And the process of fast-forwarding the hour hand 2 with the step number Nh reverse rotation is performed in parallel (step S180). And C
The PU 11 ends the pointer fast-forward process.

As described above, according to the analog electronic timepiece 1a of the second embodiment, even when three or more hands are fast-forwarded like the hour hand 2, the second hand 4, and the function hand 5, a plurality of drive voltages If the total rapid traverse time is shortened by reversing the rapid traverse direction of some pointers, the rapid traverse direction obtained individually for each pointer 2, 4, 5 is reversed. Thus, it is possible to drive the pointers at the same time for the stepping motors of the pointers related to the same driving voltage, and to drive the pointers in order to the stepping motors of the pointers related to different driving voltages. As described above, when a plurality of driving voltages are set when fast-forwarding a plurality of hands, first, the fast-forwarding direction is individually set and then the driving voltage is changed by reversing the fast-forwarding direction. Select a stepping motor, calculate the total fast-forwarding time for each case of reversing the fast-forwarding direction by the stepping motor and not inverting it, and compare these calculated fast-forwarding times to determine whether or not to reverse the fast-forwarding direction To do. Therefore, by repeating the processing according to the number of the needles to be fast-forwarded, the direction of fast-forwarding can be adjusted as appropriate, and the fast-forwarding time can be easily shortened without complicating the processing contents.

The present invention is not limited to the above-described embodiment, and various modifications can be made.
For example, in the above embodiment, the case where the driving voltages of all the hands are made to coincide by reversing the fast-forwarding direction has been described. However, even if a plurality of driving voltages remain, the fast-forwarding directions of some hands are reversed. The present invention can be applied when the entire fast-forwarding time can be shortened. Similarly, even when three or more types of driving voltages are set for fast-forwarding, the entire fast-forwarding time in each situation where the driving voltage is unified to one type, reduced to two types, or remains three types Can be shortened, the fast-forwarding direction of some hands may be reversed to fast-forward each hand.

In the above embodiment, the drive circuit 52 is configured separately from the CPU 11.
11 may perform all the processing related to the driving control of the hands.

In the above embodiment, the case of two types of maximum drive frequencies is shown, but there may be three or more types of maximum drive frequencies.

Further, in the above-described embodiment, after the fast-forward of the pointer related to one drive voltage is completed, the fast-forward of the pointer related to another drive voltage is shifted to, but the plurality of drive voltages are sequentially switched at a predetermined cycle. It is also possible to fast forward the pointer. In addition, specific details, numerical values, control procedures, and the like shown in the above embodiment can be changed as appropriate without departing from the spirit of the present invention.

Although several embodiments of the present invention have been described, the scope of the present invention is not limited to the above-described embodiments, but includes the scope of the invention described in the claims and equivalents thereof.
The invention described in the scope of claims attached to the application of this application will be added below.
The item numbers of the claims described in the appendix are as set forth in the claims attached to the application of this application.

[Appendix]
<Claim 1>
Multiple guidelines,
Drive means for independently driving the plurality of hands;
Drive control means for outputting an operation signal for causing the drive means to drive the pointer at the movement timing of the pointer;
When moving the pointer by fast-forwarding, the fast-forwarding target pointer is moved to each fast-forwarding destination at the shortest time based on the fast-forwarding speed preset for each pointer according to the fast-forwarding direction of the pointer. Fast-forward setting means for determining the direction of fast-forward to be moved with,
With
In the operation signal, a driving voltage is set in advance for each of the hands according to the movement direction of the plurality of hands,
The drive control means outputs the operation signals for driving the plurality of hands having the same drive voltage at the set fast-forward speed when moving the plurality of hands by fast-feed,
The fast-forward setting means includes
By reversing the direction of some of the fast-forwarding targets and changing the driving voltage of the part of the pointers and moving them by fast-forwarding, all the fast-forwarding pointers are moved forward. An analog electronic timepiece characterized in that, when the fast-forwarding time required for moving first is shortened, the fast-forwarding direction of the part of the hands is reversed.
<Claim 2>
The fast-forward setting means includes
Initial setting means for setting a fast-forward direction in which each of the needles to be fast-forwarded can move to the fast-forward destination in the shortest time;
When the setting obtained by the initial setting means includes the operation of the driving means by a plurality of driving voltages, driving when the set fast-forward direction is reversed in the fast-forward target needle A drive voltage search means for determining whether or not a voltage is equal to the drive voltage of the other needle for fast-forwarding,
When the driving voltage search means includes the needle that is the target of fast-forwarding in which the driving voltage when the direction of fast-forwarding is reversed is equal to the driving voltage of the pointer that is the target of other fast-forwarding If determined, the fast-forwarding time when the fast-forwarding direction of the pointer is reversed is compared with the fast-forwarding time when the fast-forwarding direction is not reversed. The analog electronic timepiece according to claim 1, further comprising: a fast-forwarding direction selecting unit that selects a fast-forwarding direction in which the fast-forwarding operation of the hands to be fast-forwarded ends.
<Claim 3>
The drive control means includes
When the plurality of pointers are fast-forwarded according to a plurality of driving voltage operation signals, the plurality of driving voltages are sequentially switched each time the pointer corresponding to one of the plurality of driving voltages is completed. The analog electronic timepiece according to claim 1, wherein the analog electronic timepiece is switched to.

1, 1a Analog electronic timepiece 2 Hour hand 3 Minute hand 4 Second hand 5, 5a Function hand 6 Date wheel 7 Casing 8 Bezel 9 Dial 9a, 9b Small window 10a, 10b Band 11 CPU
12 ROM
12a Setting program 13 RAM
14 Power supply unit 15 Operation unit 16 Oscillation circuit 17 Frequency division circuit 18 Timekeeping circuit 32-36 Wheel train mechanism 42-46 Stepping motor 52 Drive circuit B1-B3 Push button switch C1 Crown

Claims (4)

Provided with drive control means for driving a plurality of hands with respective preset drive voltages,
The drive control means includes
An analog electronic timepiece characterized in that when the plurality of hands are moved in rapid traverse, the plurality of hands having the same drive voltage are moved simultaneously. The drive control means includes
2. The analog electronic timepiece according to claim 1, wherein each of the analog electronic timepieces is moved at a preset fast feed speed. By reversing the direction of some of the fast-forwarding targets and changing the drive voltage of some of the pointers and moving them in fast-forwarding, all the needles subject to fast-forwarding will be moved to the fast-forwarding destination. 3. The analog electronic timepiece according to claim 1, further comprising a fast-forward setting unit that reverses a fast-forward direction of the part of the hands when the fast-forward time required for the movement is shortened. The drive control means includes
The plurality of driving voltages are sequentially switched each time the fast-forwarding movement of the pointer corresponding to one of the plurality of driving voltages is completed when the plurality of hands are moved in a fast-forwarding manner. The analog electronic timepiece according to any one of to 3.

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