JP5891732B2 - Analog display device - Google Patents

Description

  The present invention relates to an analog display device that displays information using a plurality of independently driven hands.

  2. Description of the Related Art Conventionally, there are analog display devices that can display the current time using a plurality of hands or display the elapsed time measured by a stopwatch function, for example, an analog electronic timepiece. In such an analog display device, when the display content is changed based on the operation of the button switch by the user or the like, the pointer is quickly moved and quickly switched to another display.

  In recent years, an analog electronic timepiece capable of executing a plurality of functions such as a stopwatch function in addition to a time display function has adopted a configuration in which a plurality of hands can be independently moved in the forward direction or the reverse direction. . In such an analog electronic timepiece, the hour hand and the minute hand are rotated in conjunction with each other even when the movement of each pointer is large, such as changing the display contents or resetting the display data. All hands can be moved to the target position in a short time compared to an analog electronic timepiece. Patent Document 1 describes various functions that can be executed in an analog timepiece device using such independently driven hands.

Japanese Patent Application Laid-Open No. 5-93784

  However, particularly in a small-sized analog display device used for portable use, such as an analog electronic wristwatch, there is an upper limit on the operating speed of the pointer due to restrictions on the battery and control processing capability. Accordingly, when a plurality of functions are switched or the same function is repeatedly used in such an analog display device, the pointer is set to a predetermined absolute value in accordance with, for example, a scale or a mark provided on the dial. When moved to a position, the time required for the movement becomes longer depending on the arrangement of the pointers, and there is a problem that a waiting time of a length that cannot be ignored occurs even if the user wants to use the function after switching quickly. .

  An object of the present invention is to provide an analog display device capable of further shortening the standby time when moving the pointer by fast-forwarding.

In order to achieve the above object, the present invention
A plurality of pointers each rotatable with respect to one rotation axis;
Drive means for driving each of the plurality of hands independently and moving each unit by a predetermined unit movement angle in the forward rotation direction or the reverse rotation direction;
Fast-forward setting means for setting the fast-forward direction of each of the plurality of hands based on the fast-forward information of the plurality of hands,
Until the first pointer set in the forward direction by the fast-forward setting means reaches each movement target position set based on the fast-forward information, the first forward speed is set at a predetermined forward speed. First drive control means for outputting a drive signal for driving one pointer to the drive means;
The second pointer is set at a preset reverse rotation fast feed speed until the second pointer set in the reverse rotation direction by the rapid feed setting means reaches each movement target position set based on the rapid feed information. Second drive control means for outputting a drive signal for driving the drive means to the drive means;
With
The fast-forward setting means acquires movement destination information that specifies movement target positions of the plurality of pointers by fast-forwarding as the fast-forward information, and the relative positional relationship between the plurality of pointers is specified by the movement destination information. Among the pointer positions that are the same as the relative positional relationship of the plurality of hands at the target position, the pointer position at which the fast-forwarding time is shortened compared to the case where the plurality of hands are fast-forwarded from the current position to the moving target position. Is changed to the movement target position.

  According to the present invention, in the analog display device, there is an effect that the standby time related to the movement of the pointer can be shortened as compared with the related art.

It is a front view which shows the analog electronic timepiece of embodiment of this invention. It is a block diagram which shows the internal structure of an analog electronic timepiece. It is a flowchart which shows the control procedure of the pointer fast-forward control process which CPU performs. It is a flowchart which shows the control procedure of the movement destination setting process in the case of fast-forwarding 2 pointers. It is a flowchart which shows the control procedure of a 1st moving direction movement distance calculation process. It is a figure which shows the specific example in the case of fast-forwarding 2 pointers. It is a front view which shows the analog electronic timepiece of a modification. It is a flowchart which shows the control procedure of the movement destination setting process in the case of fast-forwarding 3 pointers. It is a flowchart which shows the control procedure of a 2nd moving direction movement distance calculation process. It is a figure for demonstrating the specific example in the case of fast-forwarding 3 pointers.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a front view of an analog electronic timepiece that is an embodiment of an analog display device of the present invention.

  The analog electronic timepiece 1 is a wristwatch type electronic timepiece. The analog electronic timepiece 1 includes an hour hand 2, a minute hand 3, a second hand 4, a function hand 5, and a region covered with a casing 10, a dial 7, and a windshield (not shown) that covers the upper surface of the dial 7. A rotating disk 6 (hereinafter collectively referred to as hands 2-6) is provided. The rotation axes of the hands 2 to 6 are all provided at the same position near the center of the dial 7. Moreover, the bezel 8 is provided in the peripheral part of the windshield, and three button switches B1-B3 and the crown C1 are provided in the side part of the casing 10. FIG.

  The rotating disk 6 has a size and an arrangement that do not cover the time scale for displaying the time provided on the peripheral portion of the dial 7 and the city name sign indicating the city selected in the world clock function. . A character marker representing a function that can be executed by the analog electronic timepiece 1 is provided on the peripheral portion of the rotating disk 6, and the function hand 5 points to one of these character marks to execute the analog electronic timepiece 1. The function inside is shown. Further, the bezel 8 is provided with a scale indicating 1/20 second in the stopwatch function, and an elapsed time of less than 1 second is indicated by the second hand 4 indicating when the stopwatch function is executed. The time scale provided on the dial 7, the character markers provided on the rotating disk 6, and the scale provided on the bezel 8 may each be printed or engraved and formed. A concave portion, a hole portion, or a raised convex portion may be used.

  On the rotating disk 6 of the analog electronic timepiece 1 of the present embodiment, a sign “AL” representing an alarm function, a sign “WT” representing a world clock function, a sign “TR” representing a timer function, and a sign representing a stopwatch function “ST” and a sign “BT” indicating the current time display function are provided at intervals of 60 degrees. In the initial setting of the analog electronic timepiece 1, the sign “BT” representing the current time display function is arranged at a position of 45 degrees clockwise with respect to the direction of 12:00, the initial position of the sign “BT”, and Initial setting position data indicating the positional relationship of other signs “AL”, “WT”, “TR”, “ST” with respect to the sign “BT” is stored in the ROM 47 described later. Usually, the function hand 5 points to the sign “BT” and the hour hand 2, the minute hand 3, and the second hand 4 each point to the time scale on the dial 7 so that the current time is continued. Displayed.

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

The analog electronic timepiece 1 includes an hour hand drive unit 42, a minute hand drive unit 43, a second hand drive unit 44, and a function hand which drive these hands 2 to 6 through the gear train mechanisms 32 to 36 in addition to the hands 2 to 6, respectively. Drive unit 45, rotating disk drive unit 46 (hereinafter also referred to as pointer drive units 42 to 46), ROM (Read Only Memory) 47 (storage means), RAM (Random Access Memory) 48, CPU ( Central Processing Unit) 49 (fast-forward setting means, first drive control means, second drive control means, initialization means), power supply unit 50, oscillation circuit 51, frequency divider circuit 52, timer circuit 53, operation Part 54, and the like.
Here, the pointer driving units 42 to 46 constitute driving means.

  The CPU 49 performs various arithmetic processes and controls and controls the overall operation of the analog electronic timepiece 1. The RAM 48 provides a working memory space to the CPU 49 and stores temporary data. The ROM 47 stores various programs executed by the CPU 49 and initial setting data used in these various programs. The various programs stored in the ROM 47 include a fast-forward control program 47a that controls the fast-forward operation of the hands 2-6. The program and initial setting data stored in the ROM 47 are read by the CPU 49 as necessary, and are expanded on the RAM 48 for execution and use.

  The power supply unit 50 supplies power necessary for the operation to the CPU 49. Although this power supply part 50 is not restricted in particular, For example, it combines a solar cell and a secondary battery.

The oscillation circuit 51 generates a predetermined frequency signal and outputs it to the frequency dividing circuit 52. The frequency divider 52 divides the frequency signal input from the oscillation circuit 51 by various set frequency dividing ratios, appropriately generates a signal having a frequency set in advance by the CPU 49, and outputs the signal to the CPU 49. Of the frequency signal generated by the frequency dividing circuit 52, the 1 second signal is output to the time measuring circuit 53. The timer circuit 53 is a counter that counts the time by counting the input 1 second signal. Further, the time data counted by the timer circuit 53 can be corrected based on a correction command from the CPU 49.
Note that the time counting circuit 53 is not limited to counting in units of one second, and may count the time at finer time intervals based on the frequency of the signal input from the frequency dividing circuit 52.

  Each of the pointer driving units 42 to 46 includes a stepping motor and can independently drive the pointers 2 to 6 based on a driving signal (pulse) input from the CPU 49. Further, these pointer driving units 42 to 46 can move the pointers 2 to 6 by appropriately switching in the forward direction (clockwise) or the reverse direction (counterclockwise), respectively. The second hand drive unit 44 rotates and moves the second hand 4 in 6 degree steps via the train wheel mechanism 34 every time the stepping motor rotates 180 degrees, and the hour hand drive unit 42, the minute hand drive unit 43, the functional hand drive unit 45, and The rotating disk drive unit 46 moves the hour hand 2, the minute hand 3, the function hand 5, and the rotating disk 6 through the gear train mechanisms 32, 33, 35, and 36 each time the stepping motor rotates 180 degrees. Rotate and move in 1 degree steps. That is, the second hand 4 has a unit movement angle of 6 degrees, and makes one round on the dial 7 by moving 60 steps. Further, the hour hand 2, the minute hand 3, the function hand 5, and the rotating disk 6 are configured so that the unit movement angle is 1 degree and makes a round on the dial 7 in 360 steps.

  In the analog electronic timepiece 1 of the present embodiment, when the fast-forwarding direction is the forward rotation direction, the pointer driving units 42 to 46 move the hands 2 to 6 up to 64 pps (Pulse per second), that is, 64 steps per second. When the fast-forward direction is the reverse direction, the hands 2 to 6 can be driven at a maximum of 32 pps, that is, the reverse fast-forward speed of 32 steps per second.

Next, the fast-forwarding operation of the hands of the analog electronic timepiece 1 of this embodiment will be described.
FIG. 3 is a flowchart showing a control procedure of the pointer fast-forward process executed by the CPU 49.

  This pointer fast-forward process is started, for example, when the operation function is changed based on an input operation to the operation unit 54 by the user.

  When the pointer fast-forward process is started, the CPU 49 first acquires the current position and destination information of the pointers 2 to 6 (step S11). Subsequently, the CPU 49 determines whether or not all the pointers to be moved can be changed by rotational movement of the movement target position specified by the movement destination information (step S12). Specifically, in the analog electronic timepiece 1 of the present embodiment, the movement target positions of the hour hand 2, the minute hand 3, and the second hand 4 when shifting to the function of time display or alarm time display are provided on the dial 7. Since the direction is determined based on the direction of the sign, the movement target positions of these hands cannot be moved. On the other hand, the movement target positions of the functional needle 5 and the rotating disk 6 are not limited to fixed positions as long as the functional needle 5 is in a relative positional relationship indicating the target mark on the rotating disk 6, and therefore, It is possible to change the target movement position of the pointer by rotating it.

  When it is determined that the movement target position cannot be changed by rotational movement, the CPU 49 rotates each pointer based on the relative positional relationship between the current position of each pointer to be moved and the movement target position of the pointer. The direction and the number of moving steps are calculated and set (step S14). Specifically, for a pointer whose relative step number from the current position of the pointer to the movement target position is 240 steps or less in the forward rotation direction, the CPU 49 sets the relative movement of the pointer in the forward rotation direction. I do. On the other hand, for a pointer whose relative step number is greater than 240 steps, the CPU 49 performs setting to move the pointer in the reverse direction by subtracting the relative step number from 360. And the process of CPU49 transfers to step S15.

  When it is determined that the movement target position can be changed by rotational movement, the CPU 49 calls and executes a movement destination setting process described later (step S13), and moves the movement direction and movement step of each movement target pointer. Set the number. Then, the process of the CPU 49 proceeds to step S15.

  When the process proceeds to step S15, the CPU 49 outputs a drive signal at a preset fast feed speed (time period) to the one corresponding to the pointer to be moved among the pointer drive units 42 to 46, and Move the pointer to the movement target position. When all the movement target hands have reached the movement target position, the CPU 49 ends the pointer fast-forward process.

  FIG. 4 shows the movement destination that is called by the fast-forwarding process when the two pointers are driven at the same step angle (that is, the unit movement angle is 1 degree) in the analog electronic timepiece 1 of the present embodiment. It is a flowchart which shows the control procedure by CPU49 of a setting process.

  For the two pointers A and B to be moved, the CPU 49 first acquires the current position of the pointer A as the position α, and acquires the current position of the pointer B as the position β (step S1311). Here, the positions α and β are each represented by a numerical value set in order up to “359” every time (one step) in the forward rotation direction with the 12 o'clock direction being “0”. Then, the CPU 49 calls a first movement direction movement distance calculation process, which will be described later, and calculates the movement direction and the number of movement steps of the hands A and B (step S1312). When the movement directions and the number of movement steps of the pointers A and B are obtained and set, the processing of the CPU 49 returns to the pointer fast-forward processing.

  FIG. 5 is a flowchart showing a control procedure by the CPU 49 of the first movement direction movement distance calculation process called from the movement destination setting process.

  When the first movement direction movement distance calculation process is called, the CPU 49 first determines whether or not the value of the position β is larger than the value of the position α (step S2301). When it is determined that the value of the position β is larger than the value of the position α, the CPU 49 subsequently determines whether or not the difference between the values of the position β and the position α (β−α) is 180 or more. (Step S2302). When it is determined that the difference is 180 or more, the CPU 49 performs a setting to move the pointer A at the position α in the reverse direction and to move the pointer B at the position β in the forward direction (step S2303). . Further, the CPU 49 sets the number of movement steps from the position α of the pointer A to (360 + α−β) × 32 / (64 + 32), and sets the number of movement steps from the position β of the pointer B to (360 + α−β) × 64 / It is set to (64 + 32) (step S2304). If the moving step number does not become an integer, it is preferable to move up the decimal point in the moving step number of the pointer to be fast-forwarded in the forward direction and round down the decimal point in the moving step number of the pointer to be fast-forwarded in the reverse direction. Then, the CPU 49 ends the first movement direction movement distance calculation process and returns to the original process.

  On the other hand, if it is determined in step S2302 that the difference is less than 180, the CPU 49 moves the pointer A at the position α in the forward rotation direction, and moves the pointer B at the position β in the reverse rotation direction. Setting to move is performed (step S2305). Further, the CPU 49 sets the number of movement steps from the position α of the pointer A to (β−α) × 64 / (64 + 32), and sets the number of movement steps from the position β of the pointer B to (β−α) × 32 / It is set to (64 + 32) (step S2306). Then, the CPU 49 ends the first movement direction movement distance calculation process and returns to the original process.

  If it is determined in step S2301 that the value of the position β is equal to or less than the value of the position α, the CPU 49 subsequently determines the difference (α−β) between the value of the position α and the value of the position β. Is determined to be 180 or more (step S2312). When it is determined that the difference is 180 or more, the CPU 49 performs setting for moving the pointer A in the forward rotation direction and moving the pointer B in the reverse rotation direction (step S2313). Further, the CPU 49 sets the number of movement steps from the position α of the pointer A to (360 + β−α) × 64 / (64 + 32), and sets the number of movement steps from the position β of the pointer B to (360 + β−α) × 32 /. It is set to (64 + 32) (step S2314). Then, the CPU 49 ends the first movement direction movement distance calculation process and returns to the original process.

  On the other hand, if it is determined in step S2312 that the difference is less than 180, the CPU 49 performs setting for moving the pointer A in the reverse direction and moving the pointer B in the forward direction (step S2315). ). Further, the CPU 49 sets the number of movement steps from the position α of the pointer A to (α−β) × 32 / (64 + 32), and sets the number of movement steps from the position β of the pointer B to (α−β) × 64 / It is set to (64 + 32) (step S2316). Then, the CPU 49 ends the first movement direction movement distance calculation process and returns to the original process.

  FIG. 6 is a diagram showing a specific example in the case where two hands are moved in a fast-forward manner in the analog electronic timepiece 1 of the present embodiment.

  As shown in FIG. 6A, initially, the functional hand 5 points to the 1:30 direction of the rotating disk 6, that is, the sign “BT” located at the step “45”, whereby the analog electronic It is shown that the clock 1 is in an execution state of the current time display function. In order to shift from the current time display state to the initial display state of the stopwatch function, first, the function hand 5 and the rotating disk 6 are fast-forwarded so that the function hand 5 points to the mark “ST” of the rotating disk 6. Move. As shown in FIG. 6A, since the sign “ST” is positioned in the direction of 11:30 (step “345”) in the display state of the current time, the function hand 5 and the rotating disc 6 The initial movement target position is set in this step “345” (step S11). Since only the relative positional relationship between the function hand 5 and the rotating disk 6 is important in displaying the function being executed, the movement target position can be changed (“YES” in step S12). Accordingly, the process of the CPU 49 moves to step S13 and the destination setting process is called.

  At this time, the step “45” of the current position of the functional hand 5 is set as the position α, and the step “345” where the marker “ST” on the rotating disc 6 is positioned is set as the position β (step S1311). When the movement direction movement distance calculation process is called in the process of step S1312, in the determination process of step S2301, it is determined that the value of position β is larger than the value of position α (branch to “YES”). The step difference between the position of the mark “ST” and the position of the functional hand 5 is 300, and is determined to be greater than 180 (branch to “YES” in step S2302). Accordingly, setting is made to move the functional needle 5 by reverse rotation and to move the rotating disk 6 by normal rotation (step S2303). Further, the number of movement steps of the functional needle 5 is 20 steps, and the number of movement steps of the rotating disk 6 is 40 steps, which are calculated and set (step S2304).

  Returning to the pointer fast-forwarding process, the CPU 49 outputs the driving signals of the calculated moving direction and the number of moving steps to the functional needle driving unit 45 and the rotating disk driving unit 46, as shown in FIG. In a shortest time, the function hand 5 can be changed to a state indicating the mark “ST” on the rotating disk 6 in the direction of 0:50 (step “25”) (step S15).

  Next, for example, when the hour hand 2 and the minute hand 3 are used for displaying the elapsed time in the stopwatch function, the hour hand 2 and the minute hand 3 are set to 0 after the fast-forwarding operation of the function hand 5 and the rotating disc 6 is completed. Move in the hour direction (step S11). In this case, since the movement target position is fixed in the 0 o'clock direction (step “0”) (“NO” in step S12), the movement direction and the number of movement steps are obtained as usual (step S14). A fast-forward process is performed (step S15). It should be noted that the hour hand 2 and the minute hand 3 may be fast-forwarded simultaneously and independently of the functional hand 5 and the rotating disc 6 to indicate the 0 o'clock direction when the functional hand 5 and the rotating disc 6 are fast-forwarded.

  Thereafter, when returning from the stopwatch function to the current time display function, fast-forwarding is performed again to match the direction indicated by the function hand 5 with the position of the mark “BT” on the rotating disc 6. The temporary movement target position is set at step “85”, which is the position of the sign “BT” on the rotating disc 6 at this time (step S11), but this movement target position can be changed (step S12). “YES” in the discrimination process). In the pointer movement destination setting process (step S13), the position of the functional needle 5 (step “25”) is set as the position α, and the position of the mark “BT” on the rotating disk 6 (step “85”). Is set as the position β (step S1311).

  Subsequently, in the movement direction movement distance calculation process called (step S1312), it is determined that β is larger than α (“YES” in step S2301), and β−α = 60 is determined to be smaller than 180. ("NO" in step S2302). Accordingly, the setting is made such that the functional needle 5 is fast-forwarded in the forward rotation direction and the rotary disk 6 is fast-forwarded in the reverse rotation direction (step S2305), and the number of movement steps of the functional needle 5 is 40 steps. The number of movement steps of 6 is set to 20 steps (step S2306).

  Returning to the needle fast-forwarding process, the CPU 49 moves the function hand 5 and the rotary disk 6 by moving the number of movement steps in the set moving direction (step S15), as shown in FIG. 6C. 5 and the position of the mark “BT” on the rotating disk 6 coincide with each other at the 2:10 direction corresponding to the step “65”.

  Here, in the above example, the case where the two pointers to be moved have the same rapid feed speed and unit movement angle is shown. For example, the second hand 4 having a unit movement angle of 6 degrees and the unit movement angle of 1 When fast-feeding other hands at the same time, for example, when fast-feeding speed of the rotating disk 6 is 32 pps in the forward direction, fast-feeding needles with different fast-feed speeds and / or different unit movement angles are fast-forwarded. There may be cases. Similarly, in such a case, the relative position relationship between the second hand 4 and the other hands can be set to a desired value in the shortest time by appropriately setting the moving direction and moving speed to change the moving target position. it can.

The current position (angle) of the pointer A is p ₁ , the unit movement angle is a ₁ , the forward movement speed (pps) is v _1f , and the reverse movement speed is v _1b . The current position of the pointer B is p ₂ , the unit movement angle is a ₂ , the forward rotation speed is v _2f , and the reverse movement speed is v _2b . Here, the hands A and B are set so that the unit movement angle a ₂ ≧ a ₁ . Further, the difference [Delta] P ₁₂ = _p 2 -p ₁ between the current position _{p 2} of the current position _{p 1} and guidelines B guidelines A. When ΔP ₁₂ <0, 360 is added to ΔP ₁₂ .

At this time, in order to obtain the number of movement steps of the pointer B, first, the calculation formulas shown in steps S2304, S2306, S2314, and S2316 in FIG. 5 are expanded, and the pointer B is based on the following formulas (1) and (2). The provisional number of movement steps in the case of fast-forwarding in the reverse direction or the normal direction is calculated.
m _2b = ceil ((ΔP ₁₂ / a ₂ ) × (a ₂ v _2b ) / (a ₁ v _1f + a ₂ v _2b )) (1)
m _2f = ceil (((360−ΔP ₁₂ ) / a ₂ ) × (a ₂ v _2f ) / (a ₁ v _1b + a ₂ v _2f )) (2)
Here, the function ceil indicates that an integer obtained by rounding up the number in the parentheses is rounded up.

Next, it is determined whether or not the following conditional expression (3) is satisfied.
m _2b / v _2b ≦ m _2f / v _2f (3)
When the conditional expression (3) is satisfied, m ₂ = m _2b , v ₂ = v _2b , the pointer B is reversed, m ₁ = (ΔP ₁₂ −m ₂ a ₂ ) / a _1, v ₁ = v _1f The pointer A is set to forward rotation. On the other hand, when the conditional expression (3) is not satisfied, m ₂ = m _2f , v ₂ = v _2f , the pointer B is forward rotation, m ₁ = (360−ΔP ₁₂ −m ₂ a ₂ ) / a ₁ , v ₁ = v _1b , the pointer A is set to reverse _rotation .

Subsequently, it is determined whether or not the following conditional expression (4) is satisfied.
m ₂ / v ₂ ≦ (m ₁ + a ₂ / a ₁ ) / v ₁ (4)
When the conditional expression (4) is satisfied, the moving step numbers m ₁ and m ₂ of the hands A and B are the calculated values, and when the conditional expression (4) is not satisfied, the moving step number m ₂ = m ₂ −1 and m ₁ = m ₁ + a ₂ / a ₁ respectively.

When the pointer position difference ΔP ₁₂ is smaller than the unit movement angle a ₂ per step of the pointer B, the movement directions of the pointer B and the pointer A are the same, so correction is necessary.
If the unit movement angle a ₁ is not a divisor of the unit movement angle a ₂ , a settable movement target position is calculated for each least common multiple of the unit movement angles a ₁ and a ₂ .

[Modification]
FIG. 7 is a front view showing a modification of the analog electronic timepiece of the above embodiment.

  In the analog electronic timepiece 1a of this modification, a sign indicating the function being executed is provided on the dial 7a, and instead, a scale indicating the elapsed time in the stopwatch function is provided on the rotating disk 6a. The city name sign is provided on the bezel 8a. Other configurations are the same as those of the analog electronic timepiece 1, and the same reference numerals are given and the description thereof is omitted.

  In the stopwatch function of the analog electronic timepiece 1a of this modified example, the minute and second of the elapsed time are displayed by the hour hand 2 and the minute hand 3. Further, the three hands of the hour hand 2 and the minute hand 3 and the rotating disk 6a provided with a scale are interlocked to perform a fast-forward operation.

  FIG. 8 is a flowchart showing a control procedure by the CPU 49 of the movement destination setting process called by the pointer fast-forward process when the three pointers each having the unit movement angle of 1 degree are fast-forwarded in the analog electronic timepiece 1 of the modified example. .

  This movement destination setting process is a process that is executed when there are three pointers to be moved when the movement destination setting process is called in step S13 of the pointer fast-forward process of the present embodiment.

  When this destination setting process is called, the CPU 49 first calculates a step difference (ie, angle difference) between each of the three hands A, B, and C (step S1321). That is, the CPU 49 calculates the step difference a between the hands A and B, the step difference b between the hands B and C, and the step difference c between the hands C and A. Here, the step differences a, b, and c are absolute values of the shorter step difference among the step differences in the forward rotation direction or the reverse rotation direction, and are values of 0 or more and 180 or less.

  Next, the CPU 49 determines whether or not the step difference a is greater than or equal to the step difference b and greater than or equal to the step difference c (step S1322). When it is determined that the step difference a is greater than or equal to the step differences b and c, the CPU 49 sets the position of the pointer A as the position α, the position of the pointer B as the position β, and the position of the pointer C as the position γ. (Step S1323). Next, it is determined whether or not the step difference a is equal to the sum of the step difference b and the step difference c (step S1324). If it is determined that they are equal, the processing of the CPU 49 proceeds to step S1332. If it is determined that they are not equal, the processing of the CPU 49 proceeds to step S1333.

  If it is determined that the step difference a is smaller than at least one of the step difference b or the step difference c, the CPU 49 subsequently determines whether or not the step difference c is greater than or equal to the step difference a and greater than or equal to the step difference b. Is determined (step S1325). When it is determined that the step difference c is greater than or equal to the step differences a and b, the CPU 49 sets the position of the pointer A as the position α, the position of the pointer C as the position β, and the position of the pointer B as the position γ. (Step S1326). Next, it is determined whether or not the step difference c is equal to the sum of the step difference a and the step difference b (step S1327). If it is determined that they are equal, the processing of the CPU 49 proceeds to step S1332. If it is determined that they are not equal, the processing of the CPU 49 proceeds to step S1333.

  If it is determined that the step difference c is smaller than at least one of the step difference a or the step difference b, the CPU 49 further determines whether or not the step difference b is greater than or equal to the step difference a and greater than or equal to the step difference c. (Step S1328). When it is determined that the step difference b is the maximum among the step differences a, b, and c, the CPU 49 sets the position of the pointer B to the position α, the position of the pointer C to the position β, and the position of the pointer A to the position. The position γ is set (step S1329). Next, it is determined whether or not the step difference b is equal to the sum of the step difference a and the step difference c (step S1330). If it is determined that they are equal, the processing of the CPU 49 proceeds to step S1332. If it is determined that they are not equal, the processing of the CPU 49 proceeds to step S1333.

  If it is determined that the step difference b is smaller than at least one of the step difference a or the step difference c, it is impossible to do so, so the CPU 49 outputs an error (step S1331) and returns to the pointer fast-forward process.

  When the CPU 49 branches to “YES” in any of the determination processes of steps S1324, S1327, and S1330 and the process of the CPU 49 proceeds to step S1332, the CPU 49 calls the first movement direction movement distance calculation process shown in FIG. Using the set positions α and β, the moving direction and moving distance of the two hands are calculated. On the other hand, when the process of step S1324, S1327, or S1330 branches to “NO” and the process of the CPU 49 proceeds to step S1333, the CPU 49 calls and sets a second movement direction movement distance calculation process described later. The moving direction and moving distance of the two hands are calculated using the α and β.

  When the movement direction and movement distance of the two hands are calculated in the processing of step S1332 or step S1333, the CPU 49 calculates the movement direction and movement distance from the position γ to the determined movement target position ( Step S1334). Then, the CPU 49 ends the destination setting process and returns to the pointer fast-forward process.

  FIG. 9 is a flowchart showing a control procedure by the CPU 49 of the second movement direction movement distance calculation process called in the process of step S1333.

  The control content of the second moving direction moving distance calculation process is that the processing content of step S2302 in the first moving direction moving distance calculation process is replaced with step S2302a, and the processing content of step S2312 is replaced with step S2312a. Is the same as the first moving direction moving distance calculation process, and the same reference numerals are assigned and detailed description is omitted.

  In the process of step S2302a, the CPU 49 discriminates whether or not the difference (β−α) between the positions of the two hands is less than 180, contrary to the process of step S2302, and in the process of step S2312a. The CPU 49 discriminates whether or not the difference (α−β) between the positions of the two hands is less than 180, contrary to the processing in step S2312. By these determination processes, in the following processing steps S2303 to S2306 and S2313 to S2316, settings are made such that the two needles are fast-forwarded so that the total movement angle is 180 degrees or more from the positions α and β.

  That is, in the processing in the case of the rapid feed of the three pointers, the movement target position is set between the positions α and β and the position γ is set to the set angle range side. The fast-forwarding time is always shorter than the fast-forwarding time from the positions α and β to the movement target position.

FIG. 10 is a plan view showing a specific example of the operation of the hour hand 2, the minute hand 3, and the rotating disc 6a representing the elapsed time during execution of the stopwatch function in the analog electronic timepiece 1a of this modification.
In FIG. 10, the second hand 4 and the function hand 5, which are other pointers not related to the operation description, are omitted.

  First, as shown in FIG. 10A, when the stopwatch function is called, the hour hand 2 and the minute hand 3 are fast-forwarded in the 12 o'clock direction (step “0”). In this fast-forward operation, the movement target position is fixed ("NO" in step S12), and the fast-forward direction and the number of movement steps are calculated as usual (step S14). Based on the above calculation results Based on the driving signals of the hour hand 2 and the minute hand 3 output from the CPU 49, the hour hand 2 and the minute hand 3 are fast-forwarded (step S15).

  Next, when the elapsed time in the stopwatch function is measured based on the input operation to the operation unit 54 by the user, the hour hand 2 and the minute hand 3 move with the passage of time, and the measurement is finished or the lap time is set. As shown in FIG. 10B, the elapsed time at the time of the operation is displayed and the hour hand 2 and the minute hand 3 are stopped. In the example of FIG. 10B, the hour hand 2 indicates the direction of step “44”, and the minute hand 3 indicates the direction of step “144”, which indicates 7 minutes and 24 seconds.

  Subsequently, when the display of the elapsed time is reset, the hour hand 2, the minute hand 3, and the rotating disk 6a are fast-forwarded, and an initial position indicator, that is, an indicator of 0 minute and 0 second is provided on the rotating disk 6a. The hour direction and the hour hand 2 and the minute hand 3 are overlapped. First, the position of this initial position marker (step “0” in the situation of FIG. 10B) on the rotating disk 6a is set as a temporary movement target position. At this time, the movement target position can be changed ("YES" in step S12), the process proceeds to step S13, and the three pointer movement destination setting process shown in FIG. 8 is called and performed. First, the step difference a = 100 between the hour hand 2 (pointer A) and the minute hand 3 (pointer B), the step difference b = 144 between the minute hand 3 (pointer B) and the initial position indicator (pointer C) of the rotating disk 6a, Then, the step difference c = 44 between the initial position marker of the rotating disk 6a and the hour hand 2 is obtained (step S1321).

  Next, since a <b, the process branches to “NO” in the determination processing in step S1322. Since c <a, the process branches to “NO” in the determination process in step S1325. Further, since b ≧ a and b ≧ c, the process branches to “YES” in the determination processing in step S1328. Then, the step “144” of the minute hand 3 is set as the position α, the step “0” of the initial position marker of the rotating disc 6a is set as the position β, and the step “44” of the hour hand 2 is set as the position γ. (Step S1329). Furthermore, since the step difference b = 144 is equal to the sum of the step difference a = 100 and the step difference c = 44, the process branches to “YES” in the determination processing in step S1330.

  Subsequently, the first movement direction movement distance calculation process is called (step S1332). Since β <α, the process branches to “NO” in the determination processing in step S2301. Subsequently, since α−β <180, the determination processing in step S2312 branches to “NO”. Accordingly, the minute hand 3 is set to the reverse movement, and the rotating disk 6a is set to the normal movement (step S2315). Further, the number of movement steps of the minute hand 3 is calculated and set to 48, and the number of movement steps of the rotating disk 6a is calculated to 96 (step S2316). That is, the movement target position is determined at the position of “96” (direction of 3:12).

  Then, based on γ = 44 and step “96” of the movement target position, it is determined that the movement direction of the hour hand 2 is the forward rotation direction, and that the number of movement steps of the hour hand 2 is 52. (Step S1330).

  Based on the fast-feed direction and the number of fast-forward steps set for the hour hand 2, the minute hand 3, and the rotating disc 6a, the CPU 49 performs the hour hand driving unit 42, the minute hand driving unit 43, and the rotating disc driving unit 46. As shown in FIG. 10C, the hour hand 2, the minute hand 3, and the rotating disk 6a are fast-forwarded to the position of step “96” (step S15). By such a fast-forward process, the time of 3.375 seconds required to return the hour hand 2 and the minute hand 3 to step “0”, which is the position of the fixed initial position marker, is shortened to 1.5 seconds. I can do it.

  When the initial position markers of the hour hand 2, the minute hand 3, and the rotating disc 6a reach the position of step "96", the next elapsed time can be displayed as shown in FIG. 10 (d). In the example of FIG. 10D, the hour hand 2 is at the position of step “102” and the minute hand 3 is at the position of step “138”, so that it is 1 minute 7 seconds from the start of measurement again. Show.

  Here, in the description of the above-described modification, the case of fast-feeding three hands with the same unit movement angle and the same fast-forward speed has been described. For example, the second hand 4 that moves in units of 6 degrees is set to 1/20 second. Similarly, when used for display, it is possible to perform fast-forward so that the hour hand 2, the minute hand 3, and the second hand 4 overlap with the initial position mark of the rotating disk 6a in the shortest time. In this case, for example, first, the movement destination is set for two pointers that take a long time to make one rotation of the pointer, and another one of the two pointers is added to the calculated movement target position. If the pointer cannot be reached quickly, the movement direction and the number of movement steps are set in such a way that the movement destination is set by a combination of the other one and the other two pointers. I can do it.

  As described above, the analog electronic timepiece 1 of the present embodiment has the hands 2 to 6 that rotate around the same rotation axis, and these hands 2 to 6 are independently driven, and the hour hand 2, minute hand 3, function The hand 5 and the rotating disk 6 can be moved in the normal rotation direction or the reverse rotation direction with a unit movement angle of 1 degree, and the second hand 4 can be moved in the normal rotation direction with a unit movement angle of 6 degrees. The movement information of the pointers 2 to 6 set when the function executed by the analog electronic timepiece 1 is switched or when the display content is reset. CPU 49 for setting the direction of movement of the hands 2 to 6 based on the above, and outputting a drive signal to the hand drive units 42 to 46 until these hands 2 to 6 reach the movement target position. Parts 42 to 46 are pointers 2 In 64pps the 6 in the forward direction, respectively, in the reverse direction is possible fast forward driving at 32Pps. Then, for example, when the function hand 5 and the rotating disk 6 are fast-forwarded by switching the function executed by the analog electronic timepiece 1, the function hand 5 indicates a function after the function switching on the rotating disk 6. Compared to the case where only the functional needle 5 is fast-forwarded, the pointer position that is reachable in a shorter time is calculated and moved to this pointer position. The target position is changed, and a moving direction for rapidly moving the functional needle 5 and the rotating disk 6 to the moving target position is set. Therefore, it is possible to reduce the time lag until the next operation due to the movement of the pointer at the time of switching the function.

  In particular, when the lap time of the measurement time is displayed in the stopwatch function or when the display is reset, such a fast-forwarding operation of such a pointer with respect to the hour hand 2, the minute hand 3, and the rotating disk 6a provided with the measurement time scale used for the time display. By performing the above, it is possible to immediately start measurement of the next time and display of the measurement time.

  In addition, when only the relative positions of the plurality of hands are important, the position of the plurality of hands can be flexibly changed, thereby enabling a more dynamic fast-forward operation of the hands.

  In particular, the movement amount of the pointer and the movement time of the pointer are optimized by changing the movement target position to a pointer position where the relative positional relationship of the pointer to be moved is the same as the initial movement target position in the shortest time. can do.

  For the current electronic timepiece 1 that does not change the direction of the analog electronic timepiece 1, there is no problem even if the direction of function switching is changed without changing the movement target position, or there is a problem. The user's convenience can be improved by selectively changing the movement target position to reduce the fast-forwarding time for those having a small amount.

  In addition, by setting the movement target position to be able to return to the initial position as appropriate, for example, when the stopwatch function is reset, if there is enough time before the next measurement, it is convenient for the user to return to the initial position. Can be improved.

  In addition, by calculating the number of movement steps of the pointer to be moved and moving each pointer by the number of movement steps, it is possible to easily perform the fast-forward processing of the pointer.

  Further, in particular, by making the rotary disk 6 provided with a sign and a scale as a target of a fast-forward operation related to the change of the movement target position, it is possible to display the sign and the scale at an arbitrary angle. It is possible to improve display flexibility when executing various functions.

  Further, when such a rapid traverse operation of the pointer accompanied by the change of the movement target position is performed for three or more pointers, the forward feed speed and / or the reverse fast feed speed are different for each pointer. It is used to calculate the movement target position by giving priority to the combination of slower pointers, and in the case of the same rapid feed speed, the movement target position is calculated using the combination with the farthest pointer position. It is possible to reduce the calculation load related to the calculation of the target position and to quickly perform the fast-forwarding operation of the pointer.

The present invention is not limited to the above-described embodiment, and various modifications can be made.
For example, in the above-described embodiment, the case where only the pointer rotating around the rotation shaft provided at the center of the analog electronic timepiece 1, 1a has been described, but in the small window provided on the dial 7, 7a. The present invention can also be applied to the rotating disk and the pointer as long as a plurality of pointers are fast-forwarded with respect to the same rotation axis.

In the above embodiment, the movement direction and the number of movement steps of the pointer to be moved are calculated so that the fast-forwarding time is the shortest, but the difference between the normal rotation fast-forwarding speed and the reverse rotation fast-forwarding speed, the unit movement angle If the shift of the movement target position that is less than the ratio based on the difference (2, 6 in the above embodiment, respectively) is calculated while strictly dividing the case, the load on the CPU 49 may increase rather. Therefore, in such a case, a process of selecting a movement target position with a high probability that the fast-forwarding time is the shortest without performing a strict calculation is performed, or a table of frequently occurring patterns is stored in the ROM 47 in advance. It may be stored and judged by referring to this table.
For example, when the forward movement speed pointer of 96 pps and the reverse rotation speed feed speed of 64 pps are fast-forwarded, if the total number of movement steps of these two pointers is different from a multiple of 5, A fraction occurs in the number of fast-forward steps. In such a case, a simple calculation may be performed in which the fraction generated in the moving step number of the pointer at 96 pps is always rounded up and the fraction generated in the moving step number of the pointer at 64 pps is always rounded down. If the fractional step is 0.4 or more (that is, 0.4, 0.6, 0.8), the moving step number of the 96 pps rapid feed speed pointer is rounded up to move the rapid feed rate pointer of 64 pps. If the number of steps is 0.8, the setting for rounding up may be stored in the ROM 47 in advance or incorporated in the fast-forward control program 47a.

  In the above embodiment, an example of a combination of a rotating disk type pointer and a needle-shaped pointer has been described. For example, a rotating disk provided with a plurality of markers and one of the markers is exposed. A combination with a rotating disk provided with a small window may be used, or two needle-shaped pointers may be combined and used as a pointer indicating a reference position and a pointer indicating a relative change from the reference position. It is also good.

  In the above embodiment, the movement target position is calculated so as to match a plurality of pointer positions and the fast-forward operation is performed. For example, the position indicated by the functional needle 5 and the mark “BT” of the rotating disk 6 For fast-forwarding processing in which the fast-forwarding movement target position is set based only on the relative positional relationship after fast-forwarding, such as fast-forwarding processing with a step difference of 60 and fast-forwarding processing in which a plurality of hands point to the opposite direction by 180 degrees. In contrast, the present invention can be applied.

  In the above embodiment, the rotary disks 6 and 6a can set an arbitrary absolute position based on the relative positional relationship with the corresponding hands 2, 3, and 5 as a movement target position, but have a long-time function. If not changed, the pointer positions of the rotary disks 6 and 6a are initialized to the absolute positions based on the initial setting pointer position data stored in the ROM 47 at predetermined time intervals or based on the user's input operation to the operation unit 54. The positions of the hands 2, 3, and 5 may be changed in accordance with the initialization operation.

In the above embodiment, an analog electronic wristwatch has been described as an example. However, the analog display device of the present invention is not limited to this. For example, the present invention can be applied to various analog display devices such as an analog pedometer, temperature hygrometer, and current voltmeter using a plurality of hands.
In addition, details such as specific configurations and numerical values shown in the above embodiments 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>
A plurality of pointers each rotatable with respect to one rotation axis;
Drive means for driving each of the plurality of hands independently and moving each unit by a predetermined unit movement angle in the forward rotation direction or the reverse rotation direction;
Fast-forward setting means for setting the fast-forward direction of each of the plurality of hands based on the fast-forward information of the plurality of hands,
Until the first pointer set in the forward direction by the fast-forward setting means reaches each movement target position set based on the fast-forward information, the first forward speed is set at a predetermined forward speed. First drive control means for outputting a drive signal for driving one pointer to the drive means;
The second pointer is set at a preset reverse rotation fast feed speed until the second pointer set in the reverse rotation direction by the rapid feed setting means reaches each movement target position set based on the rapid feed information. Second drive control means for outputting a drive signal for driving the drive means to the drive means;
With
The fast-forward setting means acquires the pointer position information of the plurality of hands after fast-forwarding as the fast-forward information, and the relative positional relationship between the plurality of hands based on the absolute positions of the plurality of hands specified in the hand position information Among the pointer positions satisfying the above, the movement target position is determined as the movement target position in which the fast-forwarding time is shortened compared to the case where the plurality of pointers are fast-forwarded to the absolute positions of the plurality of pointers specified in the pointer position information. An analog display device characterized by being set as
<Claim 2>
The fast-forward setting means, among the needle positions satisfying the relative positional relationship of the plurality of hands after fast-forwarding acquired as the fast-forward information, the pointer positions at which the plurality of hands reach from each current position by fast-forwarding in the shortest time The analog display device according to claim 1, wherein the pointer position is set as the movement target position.
<Claim 3>
The fast-forward setting means includes
Obtaining destination information indicating whether or not fast feed to the absolute position included in the pointer position information of the plurality of hands after fast feed obtained as the fast feed information is necessary;
When the destination information indicates that fast-forwarding to the absolute position is not necessary, the movement target position is set based on a relative positional relationship between the plurality of hands after fast-forwarding. The analog display device according to claim 1 or 2.
<Claim 4>
Storage means for storing initial setting pointer positions of the plurality of pointers;
The one pointer is moved to the initial setting pointer position stored by the storage means, and the plurality of pointers excluding the one pointer are set according to the relative positional relationship of the one pointer with respect to the initial setting pointer position. An analog display device according to any one of claims 1 to 3, further comprising: initialization means for moving to the movement target position.
<Claim 5>
The fast-forward setting means calculates the number of movement steps of each of the plurality of hands,
The first drive control means and the second drive control means count the number of outputs of the drive signal to the drive means, and output the drive signal until the counted number of outputs reaches the number of movement steps. It repeats. The analog display device as described in any one of Claims 1-4 characterized by the above-mentioned.
<Claim 6>
The plurality of pointers include one rotating disk provided with a plurality of signs on the upper surface,
The analog display device according to any one of claims 1 to 5, wherein one of the plurality of hands excluding the rotating disk indicates one of the plurality of signs.
<Claim 7>
The plurality of guidelines are three or more,
The fast-forward setting means sets the movement target position based on two pointer positions at which the shortest arrival time to the movement target position that can be set in any two of the plurality of pointers is maximized. Then, the movement direction and the number of movement steps are calculated and set for each of the plurality of hands, and the analog display device according to any one of claims 1 to 6.

1, 1a Analog electronic timepiece 2 Hour hand 3 Minute hand 4 Second hand 5 Function hand 6, 6a Rotating disc 7, 7a Dial 8, 8a Bezel 10 Casing 32-36 Wheel train mechanism 42 Hour drive unit 43 Minute hand drive unit 44 Second hand drive unit 45 Functional needle drive unit 46 Rotating disk drive unit 47 ROM
47a Fast-forward control program 48 RAM
49 CPU
DESCRIPTION OF SYMBOLS 50 Power supply part 51 Oscillation circuit 52 Frequency dividing circuit 53 Timekeeping circuit 54 Operation part B1-B3 Button switch C1 Crown

Claims (8)

A plurality of pointers each rotatable with respect to one rotation axis;
Drive means for driving each of the plurality of hands independently and moving each unit by a predetermined unit movement angle in the forward rotation direction or the reverse rotation direction;
Fast-forward setting means for setting the fast-forward direction of each of the plurality of hands based on the fast-forward information of the plurality of hands,
Until the first pointer set in the forward direction by the fast-forward setting means reaches each movement target position set based on the fast-forward information, the first forward speed is set at a predetermined forward speed. First drive control means for outputting a drive signal for driving one pointer to the drive means;
The second pointer is set at a preset reverse rotation fast feed speed until the second pointer set in the reverse rotation direction by the rapid feed setting means reaches each movement target position set based on the rapid feed information. Second drive control means for outputting a drive signal for driving the drive means to the drive means;
With
The fast-forward setting means acquires movement destination information that specifies movement target positions of the plurality of pointers by fast-forwarding as the fast-forward information, and the relative positional relationship between the plurality of pointers is specified by the movement destination information. Among the pointer positions that are the same as the relative positional relationship of the plurality of hands at the target position, the pointer position at which the fast-forwarding time is shortened compared to the case where the plurality of hands are fast-forwarded from the current position to the moving target position. An analog display device characterized in that the moving target position is changed . The fast-forward setting means, among the pointer positions that are the same as the relative positional relationship of the plurality of hands at the movement target position acquired as the fast-forward information, the plurality of hands are fast-forwarded from their current positions in the shortest time. The analog display device according to claim 1, wherein a reaching pointer position is calculated, and the pointer position is changed and set to the movement target position. The fast-forward setting means includes
Examples fast-forward information, whether the possible change of the movement target position acquired a indicates to information contained in the acquired destination information,
Whether it is possible to change the moving target position determined by the skilled 該情 paper,
Wherein when a change of the movement target position is determined to be an analog display device according to claim 1 or 2, characterized in that changing settings before Symbol movement target position. Storage means for storing an initial setting pointer position of a predetermined one of the plurality of pointers;
Is moved to the initial setting pointer position stored by said memory means by said modified set movement target position guidance of the moved the one prescribed in condition, said plurality of pointer except guidance the one analogue according to any one of claims 1-3, characterized in that it comprises an initializing means for moving the pointer position in the relative positional relationship in pairs to the initial setting pointer position of the one pointer Display device. The fast-forward setting means calculates the number of movement steps of each of the plurality of hands,
The first drive control means and the second drive control means count the number of outputs of the drive signal to the drive means, and output the drive signal until the counted number of outputs reaches the number of movement steps. It repeats. The analog display device as described in any one of Claims 1-4 characterized by the above-mentioned. The plurality of pointers include one rotating disk provided with a plurality of signs on the upper surface,
The analog display device according to any one of claims 1 to 5, wherein one of the plurality of hands excluding the rotating disk indicates one of the plurality of signs. The plurality of guidelines are three or more,
The fast-forward setting means determines the movement target position based on two pointer positions at which the shortest arrival time to the movement target position that can be changed and set in any combination of the plurality of pointers is maximized. The analog display device according to any one of claims 1 to 6, wherein the analog display device is changed , and thereafter, the movement direction and the number of movement steps are calculated and set for each of the plurality of hands. Multiple guidelines,
Fast-forward setting means for setting a fast-forward direction of each of the plurality of hands;
First drive control means for driving the first pointer set to fast forward in the forward rotation direction by the fast feed setting means to the movement target position;
Second drive control means for driving the second pointer, which is set to fast-forward in the reverse direction by the fast-forward setting means, to the movement target position;
With
The fast-forward setting means acquires movement destination information that specifies the movement target positions of the plurality of hands by fast-forwarding, and the relative positional relationship of the plurality of pointers is the current position at the movement target position specified by the movement destination information. Of the pointer positions that are the same as the relative positional relationship of the plurality of pointers, the pointer position in which the fast-forwarding time is shortened compared to the case where the plurality of pointers are fast-forwarded from the current position to the movement target position is the movement target. Change to position
An analog display device characterized by that.

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